diff options
Diffstat (limited to 'drivers')
359 files changed, 5405 insertions, 5346 deletions
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c index 1e5d8a40101e..fefc2ca7cc3e 100644 --- a/drivers/acpi/apei/cper.c +++ b/drivers/acpi/apei/cper.c @@ -405,7 +405,7 @@ int apei_estatus_check(const struct acpi_hest_generic_status *estatus) return rc; data_len = estatus->data_length; gdata = (struct acpi_hest_generic_data *)(estatus + 1); - while (data_len > sizeof(*gdata)) { + while (data_len >= sizeof(*gdata)) { gedata_len = gdata->error_data_length; if (gedata_len > data_len - sizeof(*gdata)) return -EINVAL; diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 0ac546d5e53f..5ff173066127 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -646,6 +646,7 @@ static void handle_root_bridge_insertion(acpi_handle handle) static void handle_root_bridge_removal(struct acpi_device *device) { + acpi_status status; struct acpi_eject_event *ej_event; ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL); @@ -661,7 +662,9 @@ static void handle_root_bridge_removal(struct acpi_device *device) ej_event->device = device; ej_event->event = ACPI_NOTIFY_EJECT_REQUEST; - acpi_bus_hot_remove_device(ej_event); + status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event); + if (ACPI_FAILURE(status)) + kfree(ej_event); } static void _handle_hotplug_event_root(struct work_struct *work) @@ -676,8 +679,9 @@ static void _handle_hotplug_event_root(struct work_struct *work) handle = hp_work->handle; type = hp_work->type; - root = acpi_pci_find_root(handle); + acpi_scan_lock_acquire(); + root = acpi_pci_find_root(handle); acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); switch (type) { @@ -711,6 +715,7 @@ static void _handle_hotplug_event_root(struct work_struct *work) break; } + acpi_scan_lock_release(); kfree(hp_work); /* allocated in handle_hotplug_event_bridge */ kfree(buffer.pointer); } diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 24213033fbae..9c1a435d10e6 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -193,6 +193,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { }, { .callback = init_nvs_nosave, + .ident = "Sony Vaio VGN-FW21M", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW21M"), + }, + }, + { + .callback = init_nvs_nosave, .ident = "Sony Vaio VPCEB17FX", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), diff --git a/drivers/amba/tegra-ahb.c b/drivers/amba/tegra-ahb.c index 093c43554963..1f44e56cc65d 100644 --- a/drivers/amba/tegra-ahb.c +++ b/drivers/amba/tegra-ahb.c @@ -158,7 +158,7 @@ int tegra_ahb_enable_smmu(struct device_node *dn) EXPORT_SYMBOL(tegra_ahb_enable_smmu); #endif -#ifdef CONFIG_PM_SLEEP +#ifdef CONFIG_PM static int tegra_ahb_suspend(struct device *dev) { int i; diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 3e751b74615e..a5a3ebcbdd2c 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -59,15 +59,16 @@ config ATA_ACPI option libata.noacpi=1 config SATA_ZPODD - bool "SATA Zero Power ODD Support" + bool "SATA Zero Power Optical Disc Drive (ZPODD) support" depends on ATA_ACPI default n help - This option adds support for SATA ZPODD. It requires both - ODD and the platform support, and if enabled, will automatically - power on/off the ODD when certain condition is satisfied. This - does not impact user's experience of the ODD, only power is saved - when ODD is not in use(i.e. no disc inside). + This option adds support for SATA Zero Power Optical Disc + Drive (ZPODD). It requires both the ODD and the platform + support, and if enabled, will automatically power on/off the + ODD when certain condition is satisfied. This does not impact + end user's experience of the ODD, only power is saved when + the ODD is not in use (i.e. no disc inside). If unsure, say N. diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index a99112cfd8b1..6a67b07de494 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -281,6 +281,8 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(INTEL, 0x1f37), board_ahci }, /* Avoton RAID */ { PCI_VDEVICE(INTEL, 0x1f3e), board_ahci }, /* Avoton RAID */ { PCI_VDEVICE(INTEL, 0x1f3f), board_ahci }, /* Avoton RAID */ + { PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */ + { PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */ { PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */ { PCI_VDEVICE(INTEL, 0x8d04), board_ahci }, /* Wellsburg RAID */ { PCI_VDEVICE(INTEL, 0x8d06), board_ahci }, /* Wellsburg RAID */ diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index d2ba439cfe54..ffdd32d22602 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -1547,6 +1547,10 @@ static bool piix_broken_system_poweroff(struct pci_dev *pdev) static int prefer_ms_hyperv = 1; module_param(prefer_ms_hyperv, int, 0); +MODULE_PARM_DESC(prefer_ms_hyperv, + "Prefer Hyper-V paravirtualization drivers instead of ATA, " + "0 - Use ATA drivers, " + "1 (Default) - Use the paravirtualization drivers."); static void piix_ignore_devices_quirk(struct ata_host *host) { diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index beea3115577e..8a52dab412e2 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -1027,7 +1027,7 @@ static void ata_acpi_register_power_resource(struct ata_device *dev) handle = ata_dev_acpi_handle(dev); if (handle) - acpi_dev_pm_remove_dependent(handle, &sdev->sdev_gendev); + acpi_dev_pm_add_dependent(handle, &sdev->sdev_gendev); } static void ata_acpi_unregister_power_resource(struct ata_device *dev) diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c index 70b0e01372b3..6ef27e98c508 100644 --- a/drivers/ata/pata_samsung_cf.c +++ b/drivers/ata/pata_samsung_cf.c @@ -661,18 +661,7 @@ static struct platform_driver pata_s3c_driver = { }, }; -static int __init pata_s3c_init(void) -{ - return platform_driver_probe(&pata_s3c_driver, pata_s3c_probe); -} - -static void __exit pata_s3c_exit(void) -{ - platform_driver_unregister(&pata_s3c_driver); -} - -module_init(pata_s3c_init); -module_exit(pata_s3c_exit); +module_platform_driver_probe(pata_s3c_driver, pata_s3c_probe); MODULE_AUTHOR("Abhilash Kesavan, <a.kesavan@samsung.com>"); MODULE_DESCRIPTION("low-level driver for Samsung PATA controller"); diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index 124b2c1d9c0b..608f82fed632 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -1511,8 +1511,7 @@ error_exit_with_cleanup: if (hcr_base) iounmap(hcr_base); - if (host_priv) - kfree(host_priv); + kfree(host_priv); return retval; } diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index 5dc0daed8fac..b81ddfea1da0 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -532,11 +532,11 @@ config BLK_DEV_RBD If unsure, say N. config BLK_DEV_RSXX - tristate "RamSam PCIe Flash SSD Device Driver" + tristate "IBM FlashSystem 70/80 PCIe SSD Device Driver" depends on PCI help Device driver for IBM's high speed PCIe SSD - storage devices: RamSan-70 and RamSan-80. + storage devices: FlashSystem-70 and FlashSystem-80. To compile this driver as a module, choose M here: the module will be called rsxx. diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index ade58bc8f3c4..1c1b8e544aa2 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -4206,7 +4206,7 @@ static int cciss_find_cfgtables(ctlr_info_t *h) if (rc) return rc; h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev, - cfg_base_addr_index) + cfg_offset, sizeof(h->cfgtable)); + cfg_base_addr_index) + cfg_offset, sizeof(*h->cfgtable)); if (!h->cfgtable) return -ENOMEM; rc = write_driver_ver_to_cfgtable(h->cfgtable); diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 747bb2af69dc..fe5f6403417f 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1044,12 +1044,29 @@ static int loop_clr_fd(struct loop_device *lo) lo->lo_state = Lo_unbound; /* This is safe: open() is still holding a reference. */ module_put(THIS_MODULE); - if (lo->lo_flags & LO_FLAGS_PARTSCAN && bdev) - ioctl_by_bdev(bdev, BLKRRPART, 0); lo->lo_flags = 0; if (!part_shift) lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN; mutex_unlock(&lo->lo_ctl_mutex); + + /* + * Remove all partitions, since BLKRRPART won't remove user + * added partitions when max_part=0 + */ + if (bdev) { + struct disk_part_iter piter; + struct hd_struct *part; + + mutex_lock_nested(&bdev->bd_mutex, 1); + invalidate_partition(bdev->bd_disk, 0); + disk_part_iter_init(&piter, bdev->bd_disk, + DISK_PITER_INCL_EMPTY); + while ((part = disk_part_iter_next(&piter))) + delete_partition(bdev->bd_disk, part->partno); + disk_part_iter_exit(&piter); + mutex_unlock(&bdev->bd_mutex); + } + /* * Need not hold lo_ctl_mutex to fput backing file. * Calling fput holding lo_ctl_mutex triggers a circular @@ -1623,6 +1640,7 @@ static int loop_add(struct loop_device **l, int i) goto out_free_dev; i = err; + err = -ENOMEM; lo->lo_queue = blk_alloc_queue(GFP_KERNEL); if (!lo->lo_queue) goto out_free_dev; diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c index 1788f491e0fb..076ae7f1b781 100644 --- a/drivers/block/mg_disk.c +++ b/drivers/block/mg_disk.c @@ -890,8 +890,10 @@ static int mg_probe(struct platform_device *plat_dev) gpio_direction_output(host->rst, 1); /* reset out pin */ - if (!(prv_data->dev_attr & MG_DEV_MASK)) + if (!(prv_data->dev_attr & MG_DEV_MASK)) { + err = -EINVAL; goto probe_err_3a; + } if (prv_data->dev_attr != MG_BOOT_DEV) { rsc = platform_get_resource_byname(plat_dev, IORESOURCE_IO, diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 11cc9522cdd4..92250af84e7d 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -4224,6 +4224,7 @@ static int mtip_pci_probe(struct pci_dev *pdev, dd->isr_workq = create_workqueue(dd->workq_name); if (!dd->isr_workq) { dev_warn(&pdev->dev, "Can't create wq %d\n", dd->instance); + rv = -ENOMEM; goto block_initialize_err; } @@ -4282,7 +4283,8 @@ static int mtip_pci_probe(struct pci_dev *pdev, INIT_WORK(&dd->work[7].work, mtip_workq_sdbf7); pci_set_master(pdev); - if (pci_enable_msi(pdev)) { + rv = pci_enable_msi(pdev); + if (rv) { dev_warn(&pdev->dev, "Unable to enable MSI interrupt.\n"); goto block_initialize_err; diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c index 07fb2dfaae13..9dcefe40380b 100644 --- a/drivers/block/nvme.c +++ b/drivers/block/nvme.c @@ -135,6 +135,7 @@ static inline void _nvme_check_size(void) BUILD_BUG_ON(sizeof(struct nvme_id_ctrl) != 4096); BUILD_BUG_ON(sizeof(struct nvme_id_ns) != 4096); BUILD_BUG_ON(sizeof(struct nvme_lba_range_type) != 64); + BUILD_BUG_ON(sizeof(struct nvme_smart_log) != 512); } typedef void (*nvme_completion_fn)(struct nvme_dev *, void *, @@ -237,7 +238,8 @@ static void *free_cmdid(struct nvme_queue *nvmeq, int cmdid, *fn = special_completion; return CMD_CTX_INVALID; } - *fn = info[cmdid].fn; + if (fn) + *fn = info[cmdid].fn; ctx = info[cmdid].ctx; info[cmdid].fn = special_completion; info[cmdid].ctx = CMD_CTX_COMPLETED; @@ -335,6 +337,7 @@ nvme_alloc_iod(unsigned nseg, unsigned nbytes, gfp_t gfp) iod->offset = offsetof(struct nvme_iod, sg[nseg]); iod->npages = -1; iod->length = nbytes; + iod->nents = 0; } return iod; @@ -375,7 +378,8 @@ static void bio_completion(struct nvme_dev *dev, void *ctx, struct bio *bio = iod->private; u16 status = le16_to_cpup(&cqe->status) >> 1; - dma_unmap_sg(&dev->pci_dev->dev, iod->sg, iod->nents, + if (iod->nents) + dma_unmap_sg(&dev->pci_dev->dev, iod->sg, iod->nents, bio_data_dir(bio) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); nvme_free_iod(dev, iod); if (status) { @@ -589,7 +593,7 @@ static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns, result = nvme_map_bio(nvmeq->q_dmadev, iod, bio, dma_dir, psegs); if (result < 0) - goto free_iod; + goto free_cmdid; length = result; cmnd->rw.command_id = cmdid; @@ -609,6 +613,8 @@ static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns, return 0; + free_cmdid: + free_cmdid(nvmeq, cmdid, NULL); free_iod: nvme_free_iod(nvmeq->dev, iod); nomem: @@ -835,8 +841,8 @@ static int nvme_identify(struct nvme_dev *dev, unsigned nsid, unsigned cns, return nvme_submit_admin_cmd(dev, &c, NULL); } -static int nvme_get_features(struct nvme_dev *dev, unsigned fid, - unsigned nsid, dma_addr_t dma_addr) +static int nvme_get_features(struct nvme_dev *dev, unsigned fid, unsigned nsid, + dma_addr_t dma_addr, u32 *result) { struct nvme_command c; @@ -846,7 +852,7 @@ static int nvme_get_features(struct nvme_dev *dev, unsigned fid, c.features.prp1 = cpu_to_le64(dma_addr); c.features.fid = cpu_to_le32(fid); - return nvme_submit_admin_cmd(dev, &c, NULL); + return nvme_submit_admin_cmd(dev, &c, result); } static int nvme_set_features(struct nvme_dev *dev, unsigned fid, @@ -906,6 +912,10 @@ static void nvme_free_queue(struct nvme_dev *dev, int qid) spin_lock_irq(&nvmeq->q_lock); nvme_cancel_ios(nvmeq, false); + while (bio_list_peek(&nvmeq->sq_cong)) { + struct bio *bio = bio_list_pop(&nvmeq->sq_cong); + bio_endio(bio, -EIO); + } spin_unlock_irq(&nvmeq->q_lock); irq_set_affinity_hint(vector, NULL); @@ -1230,12 +1240,17 @@ static int nvme_user_admin_cmd(struct nvme_dev *dev, if (length != cmd.data_len) status = -ENOMEM; else - status = nvme_submit_admin_cmd(dev, &c, NULL); + status = nvme_submit_admin_cmd(dev, &c, &cmd.result); if (cmd.data_len) { nvme_unmap_user_pages(dev, cmd.opcode & 1, iod); nvme_free_iod(dev, iod); } + + if (!status && copy_to_user(&ucmd->result, &cmd.result, + sizeof(cmd.result))) + status = -EFAULT; + return status; } @@ -1523,9 +1538,9 @@ static int nvme_dev_add(struct nvme_dev *dev) continue; res = nvme_get_features(dev, NVME_FEAT_LBA_RANGE, i, - dma_addr + 4096); + dma_addr + 4096, NULL); if (res) - continue; + memset(mem + 4096, 0, 4096); ns = nvme_alloc_ns(dev, i, mem, mem + 4096); if (ns) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 6c81a4c040b9..f556f8a8b3f9 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1264,6 +1264,32 @@ static bool obj_request_done_test(struct rbd_obj_request *obj_request) return atomic_read(&obj_request->done) != 0; } +static void +rbd_img_obj_request_read_callback(struct rbd_obj_request *obj_request) +{ + dout("%s: obj %p img %p result %d %llu/%llu\n", __func__, + obj_request, obj_request->img_request, obj_request->result, + obj_request->xferred, obj_request->length); + /* + * ENOENT means a hole in the image. We zero-fill the + * entire length of the request. A short read also implies + * zero-fill to the end of the request. Either way we + * update the xferred count to indicate the whole request + * was satisfied. + */ + BUG_ON(obj_request->type != OBJ_REQUEST_BIO); + if (obj_request->result == -ENOENT) { + zero_bio_chain(obj_request->bio_list, 0); + obj_request->result = 0; + obj_request->xferred = obj_request->length; + } else if (obj_request->xferred < obj_request->length && + !obj_request->result) { + zero_bio_chain(obj_request->bio_list, obj_request->xferred); + obj_request->xferred = obj_request->length; + } + obj_request_done_set(obj_request); +} + static void rbd_obj_request_complete(struct rbd_obj_request *obj_request) { dout("%s: obj %p cb %p\n", __func__, obj_request, @@ -1284,23 +1310,10 @@ static void rbd_osd_read_callback(struct rbd_obj_request *obj_request) { dout("%s: obj %p result %d %llu/%llu\n", __func__, obj_request, obj_request->result, obj_request->xferred, obj_request->length); - /* - * ENOENT means a hole in the object. We zero-fill the - * entire length of the request. A short read also implies - * zero-fill to the end of the request. Either way we - * update the xferred count to indicate the whole request - * was satisfied. - */ - if (obj_request->result == -ENOENT) { - zero_bio_chain(obj_request->bio_list, 0); - obj_request->result = 0; - obj_request->xferred = obj_request->length; - } else if (obj_request->xferred < obj_request->length && - !obj_request->result) { - zero_bio_chain(obj_request->bio_list, obj_request->xferred); - obj_request->xferred = obj_request->length; - } - obj_request_done_set(obj_request); + if (obj_request->img_request) + rbd_img_obj_request_read_callback(obj_request); + else + obj_request_done_set(obj_request); } static void rbd_osd_write_callback(struct rbd_obj_request *obj_request) diff --git a/drivers/block/rsxx/Makefile b/drivers/block/rsxx/Makefile index f35cd0b71f7b..b1c53c0aa450 100644 --- a/drivers/block/rsxx/Makefile +++ b/drivers/block/rsxx/Makefile @@ -1,2 +1,2 @@ obj-$(CONFIG_BLK_DEV_RSXX) += rsxx.o -rsxx-y := config.o core.o cregs.o dev.o dma.o +rsxx-objs := config.o core.o cregs.o dev.o dma.o diff --git a/drivers/block/rsxx/config.c b/drivers/block/rsxx/config.c index a295e7e9ee41..10cd530d3e10 100644 --- a/drivers/block/rsxx/config.c +++ b/drivers/block/rsxx/config.c @@ -29,15 +29,13 @@ #include "rsxx_priv.h" #include "rsxx_cfg.h" -static void initialize_config(void *config) +static void initialize_config(struct rsxx_card_cfg *cfg) { - struct rsxx_card_cfg *cfg = config; - cfg->hdr.version = RSXX_CFG_VERSION; cfg->data.block_size = RSXX_HW_BLK_SIZE; cfg->data.stripe_size = RSXX_HW_BLK_SIZE; - cfg->data.vendor_id = RSXX_VENDOR_ID_TMS_IBM; + cfg->data.vendor_id = RSXX_VENDOR_ID_IBM; cfg->data.cache_order = (-1); cfg->data.intr_coal.mode = RSXX_INTR_COAL_DISABLED; cfg->data.intr_coal.count = 0; @@ -181,7 +179,7 @@ int rsxx_load_config(struct rsxx_cardinfo *card) } else { dev_info(CARD_TO_DEV(card), "Initializing card configuration.\n"); - initialize_config(card); + initialize_config(&card->config); st = rsxx_save_config(card); if (st) return st; diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c index e5162487686a..5af21f2db29c 100644 --- a/drivers/block/rsxx/core.c +++ b/drivers/block/rsxx/core.c @@ -30,6 +30,7 @@ #include <linux/reboot.h> #include <linux/slab.h> #include <linux/bitops.h> +#include <linux/delay.h> #include <linux/genhd.h> #include <linux/idr.h> @@ -39,8 +40,8 @@ #define NO_LEGACY 0 -MODULE_DESCRIPTION("IBM RamSan PCIe Flash SSD Device Driver"); -MODULE_AUTHOR("IBM <support@ramsan.com>"); +MODULE_DESCRIPTION("IBM FlashSystem 70/80 PCIe SSD Device Driver"); +MODULE_AUTHOR("Joshua Morris/Philip Kelleher, IBM"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRIVER_VERSION); @@ -52,6 +53,13 @@ static DEFINE_IDA(rsxx_disk_ida); static DEFINE_SPINLOCK(rsxx_ida_lock); /*----------------- Interrupt Control & Handling -------------------*/ + +static void rsxx_mask_interrupts(struct rsxx_cardinfo *card) +{ + card->isr_mask = 0; + card->ier_mask = 0; +} + static void __enable_intr(unsigned int *mask, unsigned int intr) { *mask |= intr; @@ -71,7 +79,8 @@ static void __disable_intr(unsigned int *mask, unsigned int intr) */ void rsxx_enable_ier(struct rsxx_cardinfo *card, unsigned int intr) { - if (unlikely(card->halt)) + if (unlikely(card->halt) || + unlikely(card->eeh_state)) return; __enable_intr(&card->ier_mask, intr); @@ -80,6 +89,9 @@ void rsxx_enable_ier(struct rsxx_cardinfo *card, unsigned int intr) void rsxx_disable_ier(struct rsxx_cardinfo *card, unsigned int intr) { + if (unlikely(card->eeh_state)) + return; + __disable_intr(&card->ier_mask, intr); iowrite32(card->ier_mask, card->regmap + IER); } @@ -87,7 +99,8 @@ void rsxx_disable_ier(struct rsxx_cardinfo *card, unsigned int intr) void rsxx_enable_ier_and_isr(struct rsxx_cardinfo *card, unsigned int intr) { - if (unlikely(card->halt)) + if (unlikely(card->halt) || + unlikely(card->eeh_state)) return; __enable_intr(&card->isr_mask, intr); @@ -97,6 +110,9 @@ void rsxx_enable_ier_and_isr(struct rsxx_cardinfo *card, void rsxx_disable_ier_and_isr(struct rsxx_cardinfo *card, unsigned int intr) { + if (unlikely(card->eeh_state)) + return; + __disable_intr(&card->isr_mask, intr); __disable_intr(&card->ier_mask, intr); iowrite32(card->ier_mask, card->regmap + IER); @@ -115,6 +131,9 @@ static irqreturn_t rsxx_isr(int irq, void *pdata) do { reread_isr = 0; + if (unlikely(card->eeh_state)) + break; + isr = ioread32(card->regmap + ISR); if (isr == 0xffffffff) { /* @@ -161,9 +180,9 @@ static irqreturn_t rsxx_isr(int irq, void *pdata) } /*----------------- Card Event Handler -------------------*/ -static char *rsxx_card_state_to_str(unsigned int state) +static const char * const rsxx_card_state_to_str(unsigned int state) { - static char *state_strings[] = { + static const char * const state_strings[] = { "Unknown", "Shutdown", "Starting", "Formatting", "Uninitialized", "Good", "Shutting Down", "Fault", "Read Only Fault", "dStroying" @@ -304,6 +323,192 @@ static int card_shutdown(struct rsxx_cardinfo *card) return 0; } +static int rsxx_eeh_frozen(struct pci_dev *dev) +{ + struct rsxx_cardinfo *card = pci_get_drvdata(dev); + int i; + int st; + + dev_warn(&dev->dev, "IBM FlashSystem PCI: preparing for slot reset.\n"); + + card->eeh_state = 1; + rsxx_mask_interrupts(card); + + /* + * We need to guarantee that the write for eeh_state and masking + * interrupts does not become reordered. This will prevent a possible + * race condition with the EEH code. + */ + wmb(); + + pci_disable_device(dev); + + st = rsxx_eeh_save_issued_dmas(card); + if (st) + return st; + + rsxx_eeh_save_issued_creg(card); + + for (i = 0; i < card->n_targets; i++) { + if (card->ctrl[i].status.buf) + pci_free_consistent(card->dev, STATUS_BUFFER_SIZE8, + card->ctrl[i].status.buf, + card->ctrl[i].status.dma_addr); + if (card->ctrl[i].cmd.buf) + pci_free_consistent(card->dev, COMMAND_BUFFER_SIZE8, + card->ctrl[i].cmd.buf, + card->ctrl[i].cmd.dma_addr); + } + + return 0; +} + +static void rsxx_eeh_failure(struct pci_dev *dev) +{ + struct rsxx_cardinfo *card = pci_get_drvdata(dev); + int i; + + dev_err(&dev->dev, "IBM FlashSystem PCI: disabling failed card.\n"); + + card->eeh_state = 1; + + for (i = 0; i < card->n_targets; i++) + del_timer_sync(&card->ctrl[i].activity_timer); + + rsxx_eeh_cancel_dmas(card); +} + +static int rsxx_eeh_fifo_flush_poll(struct rsxx_cardinfo *card) +{ + unsigned int status; + int iter = 0; + + /* We need to wait for the hardware to reset */ + while (iter++ < 10) { + status = ioread32(card->regmap + PCI_RECONFIG); + + if (status & RSXX_FLUSH_BUSY) { + ssleep(1); + continue; + } + + if (status & RSXX_FLUSH_TIMEOUT) + dev_warn(CARD_TO_DEV(card), "HW: flash controller timeout\n"); + return 0; + } + + /* Hardware failed resetting itself. */ + return -1; +} + +static pci_ers_result_t rsxx_error_detected(struct pci_dev *dev, + enum pci_channel_state error) +{ + int st; + + if (dev->revision < RSXX_EEH_SUPPORT) + return PCI_ERS_RESULT_NONE; + + if (error == pci_channel_io_perm_failure) { + rsxx_eeh_failure(dev); + return PCI_ERS_RESULT_DISCONNECT; + } + + st = rsxx_eeh_frozen(dev); + if (st) { + dev_err(&dev->dev, "Slot reset setup failed\n"); + rsxx_eeh_failure(dev); + return PCI_ERS_RESULT_DISCONNECT; + } + + return PCI_ERS_RESULT_NEED_RESET; +} + +static pci_ers_result_t rsxx_slot_reset(struct pci_dev *dev) +{ + struct rsxx_cardinfo *card = pci_get_drvdata(dev); + unsigned long flags; + int i; + int st; + + dev_warn(&dev->dev, + "IBM FlashSystem PCI: recovering from slot reset.\n"); + + st = pci_enable_device(dev); + if (st) + goto failed_hw_setup; + + pci_set_master(dev); + + st = rsxx_eeh_fifo_flush_poll(card); + if (st) + goto failed_hw_setup; + + rsxx_dma_queue_reset(card); + + for (i = 0; i < card->n_targets; i++) { + st = rsxx_hw_buffers_init(dev, &card->ctrl[i]); + if (st) + goto failed_hw_buffers_init; + } + + if (card->config_valid) + rsxx_dma_configure(card); + + /* Clears the ISR register from spurious interrupts */ + st = ioread32(card->regmap + ISR); + + card->eeh_state = 0; + + st = rsxx_eeh_remap_dmas(card); + if (st) + goto failed_remap_dmas; + + spin_lock_irqsave(&card->irq_lock, flags); + if (card->n_targets & RSXX_MAX_TARGETS) + rsxx_enable_ier_and_isr(card, CR_INTR_ALL_G); + else + rsxx_enable_ier_and_isr(card, CR_INTR_ALL_C); + spin_unlock_irqrestore(&card->irq_lock, flags); + + rsxx_kick_creg_queue(card); + + for (i = 0; i < card->n_targets; i++) { + spin_lock(&card->ctrl[i].queue_lock); + if (list_empty(&card->ctrl[i].queue)) { + spin_unlock(&card->ctrl[i].queue_lock); + continue; + } + spin_unlock(&card->ctrl[i].queue_lock); + + queue_work(card->ctrl[i].issue_wq, + &card->ctrl[i].issue_dma_work); + } + + dev_info(&dev->dev, "IBM FlashSystem PCI: recovery complete.\n"); + + return PCI_ERS_RESULT_RECOVERED; + +failed_hw_buffers_init: +failed_remap_dmas: + for (i = 0; i < card->n_targets; i++) { + if (card->ctrl[i].status.buf) + pci_free_consistent(card->dev, + STATUS_BUFFER_SIZE8, + card->ctrl[i].status.buf, + card->ctrl[i].status.dma_addr); + if (card->ctrl[i].cmd.buf) + pci_free_consistent(card->dev, + COMMAND_BUFFER_SIZE8, + card->ctrl[i].cmd.buf, + card->ctrl[i].cmd.dma_addr); + } +failed_hw_setup: + rsxx_eeh_failure(dev); + return PCI_ERS_RESULT_DISCONNECT; + +} + /*----------------- Driver Initialization & Setup -------------------*/ /* Returns: 0 if the driver is compatible with the device -1 if the driver is NOT compatible with the device */ @@ -383,6 +588,7 @@ static int rsxx_pci_probe(struct pci_dev *dev, spin_lock_init(&card->irq_lock); card->halt = 0; + card->eeh_state = 0; spin_lock_irq(&card->irq_lock); rsxx_disable_ier_and_isr(card, CR_INTR_ALL); @@ -538,9 +744,6 @@ static void rsxx_pci_remove(struct pci_dev *dev) rsxx_disable_ier_and_isr(card, CR_INTR_EVENT); spin_unlock_irqrestore(&card->irq_lock, flags); - /* Prevent work_structs from re-queuing themselves. */ - card->halt = 1; - cancel_work_sync(&card->event_work); rsxx_destroy_dev(card); @@ -549,6 +752,10 @@ static void rsxx_pci_remove(struct pci_dev *dev) spin_lock_irqsave(&card->irq_lock, flags); rsxx_disable_ier_and_isr(card, CR_INTR_ALL); spin_unlock_irqrestore(&card->irq_lock, flags); + + /* Prevent work_structs from re-queuing themselves. */ + card->halt = 1; + free_irq(dev->irq, card); if (!force_legacy) @@ -592,11 +799,14 @@ static void rsxx_pci_shutdown(struct pci_dev *dev) card_shutdown(card); } +static const struct pci_error_handlers rsxx_err_handler = { + .error_detected = rsxx_error_detected, + .slot_reset = rsxx_slot_reset, +}; + static DEFINE_PCI_DEVICE_TABLE(rsxx_pci_ids) = { - {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS70_FLASH)}, - {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS70D_FLASH)}, - {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS80_FLASH)}, - {PCI_DEVICE(PCI_VENDOR_ID_TMS_IBM, PCI_DEVICE_ID_RS81_FLASH)}, + {PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_FS70_FLASH)}, + {PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_FS80_FLASH)}, {0,}, }; @@ -609,6 +819,7 @@ static struct pci_driver rsxx_pci_driver = { .remove = rsxx_pci_remove, .suspend = rsxx_pci_suspend, .shutdown = rsxx_pci_shutdown, + .err_handler = &rsxx_err_handler, }; static int __init rsxx_core_init(void) diff --git a/drivers/block/rsxx/cregs.c b/drivers/block/rsxx/cregs.c index 80bbe639fccd..4b5c020a0a65 100644 --- a/drivers/block/rsxx/cregs.c +++ b/drivers/block/rsxx/cregs.c @@ -58,7 +58,7 @@ static struct kmem_cache *creg_cmd_pool; #error Unknown endianess!!! Aborting... #endif -static void copy_to_creg_data(struct rsxx_cardinfo *card, +static int copy_to_creg_data(struct rsxx_cardinfo *card, int cnt8, void *buf, unsigned int stream) @@ -66,6 +66,9 @@ static void copy_to_creg_data(struct rsxx_cardinfo *card, int i = 0; u32 *data = buf; + if (unlikely(card->eeh_state)) + return -EIO; + for (i = 0; cnt8 > 0; i++, cnt8 -= 4) { /* * Firmware implementation makes it necessary to byte swap on @@ -76,10 +79,12 @@ static void copy_to_creg_data(struct rsxx_cardinfo *card, else iowrite32(data[i], card->regmap + CREG_DATA(i)); } + + return 0; } -static void copy_from_creg_data(struct rsxx_cardinfo *card, +static int copy_from_creg_data(struct rsxx_cardinfo *card, int cnt8, void *buf, unsigned int stream) @@ -87,6 +92,9 @@ static void copy_from_creg_data(struct rsxx_cardinfo *card, int i = 0; u32 *data = buf; + if (unlikely(card->eeh_state)) + return -EIO; + for (i = 0; cnt8 > 0; i++, cnt8 -= 4) { /* * Firmware implementation makes it necessary to byte swap on @@ -97,41 +105,31 @@ static void copy_from_creg_data(struct rsxx_cardinfo *card, else data[i] = ioread32(card->regmap + CREG_DATA(i)); } -} - -static struct creg_cmd *pop_active_cmd(struct rsxx_cardinfo *card) -{ - struct creg_cmd *cmd; - /* - * Spin lock is needed because this can be called in atomic/interrupt - * context. - */ - spin_lock_bh(&card->creg_ctrl.lock); - cmd = card->creg_ctrl.active_cmd; - card->creg_ctrl.active_cmd = NULL; - spin_unlock_bh(&card->creg_ctrl.lock); - - return cmd; + return 0; } static void creg_issue_cmd(struct rsxx_cardinfo *card, struct creg_cmd *cmd) { + int st; + + if (unlikely(card->eeh_state)) + return; + iowrite32(cmd->addr, card->regmap + CREG_ADD); iowrite32(cmd->cnt8, card->regmap + CREG_CNT); if (cmd->op == CREG_OP_WRITE) { - if (cmd->buf) - copy_to_creg_data(card, cmd->cnt8, - cmd->buf, cmd->stream); + if (cmd->buf) { + st = copy_to_creg_data(card, cmd->cnt8, + cmd->buf, cmd->stream); + if (st) + return; + } } - /* - * Data copy must complete before initiating the command. This is - * needed for weakly ordered processors (i.e. PowerPC), so that all - * neccessary registers are written before we kick the hardware. - */ - wmb(); + if (unlikely(card->eeh_state)) + return; /* Setting the valid bit will kick off the command. */ iowrite32(cmd->op, card->regmap + CREG_CMD); @@ -196,11 +194,11 @@ static int creg_queue_cmd(struct rsxx_cardinfo *card, cmd->cb_private = cb_private; cmd->status = 0; - spin_lock(&card->creg_ctrl.lock); + spin_lock_bh(&card->creg_ctrl.lock); list_add_tail(&cmd->list, &card->creg_ctrl.queue); card->creg_ctrl.q_depth++; creg_kick_queue(card); - spin_unlock(&card->creg_ctrl.lock); + spin_unlock_bh(&card->creg_ctrl.lock); return 0; } @@ -210,7 +208,11 @@ static void creg_cmd_timed_out(unsigned long data) struct rsxx_cardinfo *card = (struct rsxx_cardinfo *) data; struct creg_cmd *cmd; - cmd = pop_active_cmd(card); + spin_lock(&card->creg_ctrl.lock); + cmd = card->creg_ctrl.active_cmd; + card->creg_ctrl.active_cmd = NULL; + spin_unlock(&card->creg_ctrl.lock); + if (cmd == NULL) { card->creg_ctrl.creg_stats.creg_timeout++; dev_warn(CARD_TO_DEV(card), @@ -247,7 +249,11 @@ static void creg_cmd_done(struct work_struct *work) if (del_timer_sync(&card->creg_ctrl.cmd_timer) == 0) card->creg_ctrl.creg_stats.failed_cancel_timer++; - cmd = pop_active_cmd(card); + spin_lock_bh(&card->creg_ctrl.lock); + cmd = card->creg_ctrl.active_cmd; + card->creg_ctrl.active_cmd = NULL; + spin_unlock_bh(&card->creg_ctrl.lock); + if (cmd == NULL) { dev_err(CARD_TO_DEV(card), "Spurious creg interrupt!\n"); @@ -287,7 +293,7 @@ static void creg_cmd_done(struct work_struct *work) goto creg_done; } - copy_from_creg_data(card, cnt8, cmd->buf, cmd->stream); + st = copy_from_creg_data(card, cnt8, cmd->buf, cmd->stream); } creg_done: @@ -296,10 +302,10 @@ creg_done: kmem_cache_free(creg_cmd_pool, cmd); - spin_lock(&card->creg_ctrl.lock); + spin_lock_bh(&card->creg_ctrl.lock); card->creg_ctrl.active = 0; creg_kick_queue(card); - spin_unlock(&card->creg_ctrl.lock); + spin_unlock_bh(&card->creg_ctrl.lock); } static void creg_reset(struct rsxx_cardinfo *card) @@ -324,7 +330,7 @@ static void creg_reset(struct rsxx_cardinfo *card) "Resetting creg interface for recovery\n"); /* Cancel outstanding commands */ - spin_lock(&card->creg_ctrl.lock); + spin_lock_bh(&card->creg_ctrl.lock); list_for_each_entry_safe(cmd, tmp, &card->creg_ctrl.queue, list) { list_del(&cmd->list); card->creg_ctrl.q_depth--; @@ -345,7 +351,7 @@ static void creg_reset(struct rsxx_cardinfo *card) card->creg_ctrl.active = 0; } - spin_unlock(&card->creg_ctrl.lock); + spin_unlock_bh(&card->creg_ctrl.lock); card->creg_ctrl.reset = 0; spin_lock_irqsave(&card->irq_lock, flags); @@ -399,12 +405,12 @@ static int __issue_creg_rw(struct rsxx_cardinfo *card, return st; /* - * This timeout is neccessary for unresponsive hardware. The additional + * This timeout is necessary for unresponsive hardware. The additional * 20 seconds to used to guarantee that each cregs requests has time to * complete. */ - timeout = msecs_to_jiffies((CREG_TIMEOUT_MSEC * - card->creg_ctrl.q_depth) + 20000); + timeout = msecs_to_jiffies(CREG_TIMEOUT_MSEC * + card->creg_ctrl.q_depth + 20000); /* * The creg interface is guaranteed to complete. It has a timeout @@ -690,6 +696,32 @@ int rsxx_reg_access(struct rsxx_cardinfo *card, return 0; } +void rsxx_eeh_save_issued_creg(struct rsxx_cardinfo *card) +{ + struct creg_cmd *cmd = NULL; + + cmd = card->creg_ctrl.active_cmd; + card->creg_ctrl.active_cmd = NULL; + + if (cmd) { + del_timer_sync(&card->creg_ctrl.cmd_timer); + + spin_lock_bh(&card->creg_ctrl.lock); + list_add(&cmd->list, &card->creg_ctrl.queue); + card->creg_ctrl.q_depth++; + card->creg_ctrl.active = 0; + spin_unlock_bh(&card->creg_ctrl.lock); + } +} + +void rsxx_kick_creg_queue(struct rsxx_cardinfo *card) +{ + spin_lock_bh(&card->creg_ctrl.lock); + if (!list_empty(&card->creg_ctrl.queue)) + creg_kick_queue(card); + spin_unlock_bh(&card->creg_ctrl.lock); +} + /*------------ Initialization & Setup --------------*/ int rsxx_creg_setup(struct rsxx_cardinfo *card) { @@ -712,7 +744,7 @@ void rsxx_creg_destroy(struct rsxx_cardinfo *card) int cnt = 0; /* Cancel outstanding commands */ - spin_lock(&card->creg_ctrl.lock); + spin_lock_bh(&card->creg_ctrl.lock); list_for_each_entry_safe(cmd, tmp, &card->creg_ctrl.queue, list) { list_del(&cmd->list); if (cmd->cb) @@ -737,7 +769,7 @@ void rsxx_creg_destroy(struct rsxx_cardinfo *card) "Canceled active creg command\n"); kmem_cache_free(creg_cmd_pool, cmd); } - spin_unlock(&card->creg_ctrl.lock); + spin_unlock_bh(&card->creg_ctrl.lock); cancel_work_sync(&card->creg_ctrl.done_work); } diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c index 63176e67662f..0607513cfb41 100644 --- a/drivers/block/rsxx/dma.c +++ b/drivers/block/rsxx/dma.c @@ -28,7 +28,7 @@ struct rsxx_dma { struct list_head list; u8 cmd; - unsigned int laddr; /* Logical address on the ramsan */ + unsigned int laddr; /* Logical address */ struct { u32 off; u32 cnt; @@ -81,9 +81,6 @@ enum rsxx_hw_status { HW_STATUS_FAULT = 0x08, }; -#define STATUS_BUFFER_SIZE8 4096 -#define COMMAND_BUFFER_SIZE8 4096 - static struct kmem_cache *rsxx_dma_pool; struct dma_tracker { @@ -122,7 +119,7 @@ static unsigned int rsxx_get_dma_tgt(struct rsxx_cardinfo *card, u64 addr8) return tgt; } -static void rsxx_dma_queue_reset(struct rsxx_cardinfo *card) +void rsxx_dma_queue_reset(struct rsxx_cardinfo *card) { /* Reset all DMA Command/Status Queues */ iowrite32(DMA_QUEUE_RESET, card->regmap + RESET); @@ -210,7 +207,8 @@ static void dma_intr_coal_auto_tune(struct rsxx_cardinfo *card) u32 q_depth = 0; u32 intr_coal; - if (card->config.data.intr_coal.mode != RSXX_INTR_COAL_AUTO_TUNE) + if (card->config.data.intr_coal.mode != RSXX_INTR_COAL_AUTO_TUNE || + unlikely(card->eeh_state)) return; for (i = 0; i < card->n_targets; i++) @@ -223,31 +221,26 @@ static void dma_intr_coal_auto_tune(struct rsxx_cardinfo *card) } /*----------------- RSXX DMA Handling -------------------*/ -static void rsxx_complete_dma(struct rsxx_cardinfo *card, +static void rsxx_complete_dma(struct rsxx_dma_ctrl *ctrl, struct rsxx_dma *dma, unsigned int status) { if (status & DMA_SW_ERR) - printk_ratelimited(KERN_ERR - "SW Error in DMA(cmd x%02x, laddr x%08x)\n", - dma->cmd, dma->laddr); + ctrl->stats.dma_sw_err++; if (status & DMA_HW_FAULT) - printk_ratelimited(KERN_ERR - "HW Fault in DMA(cmd x%02x, laddr x%08x)\n", - dma->cmd, dma->laddr); + ctrl->stats.dma_hw_fault++; if (status & DMA_CANCELLED) - printk_ratelimited(KERN_ERR - "DMA Cancelled(cmd x%02x, laddr x%08x)\n", - dma->cmd, dma->laddr); + ctrl->stats.dma_cancelled++; if (dma->dma_addr) - pci_unmap_page(card->dev, dma->dma_addr, get_dma_size(dma), + pci_unmap_page(ctrl->card->dev, dma->dma_addr, + get_dma_size(dma), dma->cmd == HW_CMD_BLK_WRITE ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); if (dma->cb) - dma->cb(card, dma->cb_data, status ? 1 : 0); + dma->cb(ctrl->card, dma->cb_data, status ? 1 : 0); kmem_cache_free(rsxx_dma_pool, dma); } @@ -330,14 +323,15 @@ static void rsxx_handle_dma_error(struct rsxx_dma_ctrl *ctrl, if (requeue_cmd) rsxx_requeue_dma(ctrl, dma); else - rsxx_complete_dma(ctrl->card, dma, status); + rsxx_complete_dma(ctrl, dma, status); } static void dma_engine_stalled(unsigned long data) { struct rsxx_dma_ctrl *ctrl = (struct rsxx_dma_ctrl *)data; - if (atomic_read(&ctrl->stats.hw_q_depth) == 0) + if (atomic_read(&ctrl->stats.hw_q_depth) == 0 || + unlikely(ctrl->card->eeh_state)) return; if (ctrl->cmd.idx != ioread32(ctrl->regmap + SW_CMD_IDX)) { @@ -369,7 +363,8 @@ static void rsxx_issue_dmas(struct work_struct *work) ctrl = container_of(work, struct rsxx_dma_ctrl, issue_dma_work); hw_cmd_buf = ctrl->cmd.buf; - if (unlikely(ctrl->card->halt)) + if (unlikely(ctrl->card->halt) || + unlikely(ctrl->card->eeh_state)) return; while (1) { @@ -397,7 +392,7 @@ static void rsxx_issue_dmas(struct work_struct *work) */ if (unlikely(ctrl->card->dma_fault)) { push_tracker(ctrl->trackers, tag); - rsxx_complete_dma(ctrl->card, dma, DMA_CANCELLED); + rsxx_complete_dma(ctrl, dma, DMA_CANCELLED); continue; } @@ -432,19 +427,15 @@ static void rsxx_issue_dmas(struct work_struct *work) /* Let HW know we've queued commands. */ if (cmds_pending) { - /* - * We must guarantee that the CPU writes to 'ctrl->cmd.buf' - * (which is in PCI-consistent system-memory) from the loop - * above make it into the coherency domain before the - * following PIO "trigger" updating the cmd.idx. A WMB is - * sufficient. We need not explicitly CPU cache-flush since - * the memory is a PCI-consistent (ie; coherent) mapping. - */ - wmb(); - atomic_add(cmds_pending, &ctrl->stats.hw_q_depth); mod_timer(&ctrl->activity_timer, jiffies + DMA_ACTIVITY_TIMEOUT); + + if (unlikely(ctrl->card->eeh_state)) { + del_timer_sync(&ctrl->activity_timer); + return; + } + iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); } } @@ -463,7 +454,8 @@ static void rsxx_dma_done(struct work_struct *work) hw_st_buf = ctrl->status.buf; if (unlikely(ctrl->card->halt) || - unlikely(ctrl->card->dma_fault)) + unlikely(ctrl->card->dma_fault) || + unlikely(ctrl->card->eeh_state)) return; count = le16_to_cpu(hw_st_buf[ctrl->status.idx].count); @@ -508,7 +500,7 @@ static void rsxx_dma_done(struct work_struct *work) if (status) rsxx_handle_dma_error(ctrl, dma, status); else - rsxx_complete_dma(ctrl->card, dma, 0); + rsxx_complete_dma(ctrl, dma, 0); push_tracker(ctrl->trackers, tag); @@ -727,20 +719,54 @@ bvec_err: /*----------------- DMA Engine Initialization & Setup -------------------*/ +int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl) +{ + ctrl->status.buf = pci_alloc_consistent(dev, STATUS_BUFFER_SIZE8, + &ctrl->status.dma_addr); + ctrl->cmd.buf = pci_alloc_consistent(dev, COMMAND_BUFFER_SIZE8, + &ctrl->cmd.dma_addr); + if (ctrl->status.buf == NULL || ctrl->cmd.buf == NULL) + return -ENOMEM; + + memset(ctrl->status.buf, 0xac, STATUS_BUFFER_SIZE8); + iowrite32(lower_32_bits(ctrl->status.dma_addr), + ctrl->regmap + SB_ADD_LO); + iowrite32(upper_32_bits(ctrl->status.dma_addr), + ctrl->regmap + SB_ADD_HI); + + memset(ctrl->cmd.buf, 0x83, COMMAND_BUFFER_SIZE8); + iowrite32(lower_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_LO); + iowrite32(upper_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_HI); + + ctrl->status.idx = ioread32(ctrl->regmap + HW_STATUS_CNT); + if (ctrl->status.idx > RSXX_MAX_OUTSTANDING_CMDS) { + dev_crit(&dev->dev, "Failed reading status cnt x%x\n", + ctrl->status.idx); + return -EINVAL; + } + iowrite32(ctrl->status.idx, ctrl->regmap + HW_STATUS_CNT); + iowrite32(ctrl->status.idx, ctrl->regmap + SW_STATUS_CNT); + + ctrl->cmd.idx = ioread32(ctrl->regmap + HW_CMD_IDX); + if (ctrl->cmd.idx > RSXX_MAX_OUTSTANDING_CMDS) { + dev_crit(&dev->dev, "Failed reading cmd cnt x%x\n", + ctrl->status.idx); + return -EINVAL; + } + iowrite32(ctrl->cmd.idx, ctrl->regmap + HW_CMD_IDX); + iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); + + return 0; +} + static int rsxx_dma_ctrl_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl) { int i; + int st; memset(&ctrl->stats, 0, sizeof(ctrl->stats)); - ctrl->status.buf = pci_alloc_consistent(dev, STATUS_BUFFER_SIZE8, - &ctrl->status.dma_addr); - ctrl->cmd.buf = pci_alloc_consistent(dev, COMMAND_BUFFER_SIZE8, - &ctrl->cmd.dma_addr); - if (ctrl->status.buf == NULL || ctrl->cmd.buf == NULL) - return -ENOMEM; - ctrl->trackers = vmalloc(DMA_TRACKER_LIST_SIZE8); if (!ctrl->trackers) return -ENOMEM; @@ -770,35 +796,9 @@ static int rsxx_dma_ctrl_init(struct pci_dev *dev, INIT_WORK(&ctrl->issue_dma_work, rsxx_issue_dmas); INIT_WORK(&ctrl->dma_done_work, rsxx_dma_done); - memset(ctrl->status.buf, 0xac, STATUS_BUFFER_SIZE8); - iowrite32(lower_32_bits(ctrl->status.dma_addr), - ctrl->regmap + SB_ADD_LO); - iowrite32(upper_32_bits(ctrl->status.dma_addr), - ctrl->regmap + SB_ADD_HI); - - memset(ctrl->cmd.buf, 0x83, COMMAND_BUFFER_SIZE8); - iowrite32(lower_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_LO); - iowrite32(upper_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_HI); - - ctrl->status.idx = ioread32(ctrl->regmap + HW_STATUS_CNT); - if (ctrl->status.idx > RSXX_MAX_OUTSTANDING_CMDS) { - dev_crit(&dev->dev, "Failed reading status cnt x%x\n", - ctrl->status.idx); - return -EINVAL; - } - iowrite32(ctrl->status.idx, ctrl->regmap + HW_STATUS_CNT); - iowrite32(ctrl->status.idx, ctrl->regmap + SW_STATUS_CNT); - - ctrl->cmd.idx = ioread32(ctrl->regmap + HW_CMD_IDX); - if (ctrl->cmd.idx > RSXX_MAX_OUTSTANDING_CMDS) { - dev_crit(&dev->dev, "Failed reading cmd cnt x%x\n", - ctrl->status.idx); - return -EINVAL; - } - iowrite32(ctrl->cmd.idx, ctrl->regmap + HW_CMD_IDX); - iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); - - wmb(); + st = rsxx_hw_buffers_init(dev, ctrl); + if (st) + return st; return 0; } @@ -834,7 +834,7 @@ static int rsxx_dma_stripe_setup(struct rsxx_cardinfo *card, return 0; } -static int rsxx_dma_configure(struct rsxx_cardinfo *card) +int rsxx_dma_configure(struct rsxx_cardinfo *card) { u32 intr_coal; @@ -980,6 +980,103 @@ void rsxx_dma_destroy(struct rsxx_cardinfo *card) } } +int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card) +{ + int i; + int j; + int cnt; + struct rsxx_dma *dma; + struct list_head *issued_dmas; + + issued_dmas = kzalloc(sizeof(*issued_dmas) * card->n_targets, + GFP_KERNEL); + if (!issued_dmas) + return -ENOMEM; + + for (i = 0; i < card->n_targets; i++) { + INIT_LIST_HEAD(&issued_dmas[i]); + cnt = 0; + for (j = 0; j < RSXX_MAX_OUTSTANDING_CMDS; j++) { + dma = get_tracker_dma(card->ctrl[i].trackers, j); + if (dma == NULL) + continue; + + if (dma->cmd == HW_CMD_BLK_WRITE) + card->ctrl[i].stats.writes_issued--; + else if (dma->cmd == HW_CMD_BLK_DISCARD) + card->ctrl[i].stats.discards_issued--; + else + card->ctrl[i].stats.reads_issued--; + + list_add_tail(&dma->list, &issued_dmas[i]); + push_tracker(card->ctrl[i].trackers, j); + cnt++; + } + + spin_lock(&card->ctrl[i].queue_lock); + list_splice(&issued_dmas[i], &card->ctrl[i].queue); + + atomic_sub(cnt, &card->ctrl[i].stats.hw_q_depth); + card->ctrl[i].stats.sw_q_depth += cnt; + card->ctrl[i].e_cnt = 0; + + list_for_each_entry(dma, &card->ctrl[i].queue, list) { + if (dma->dma_addr) + pci_unmap_page(card->dev, dma->dma_addr, + get_dma_size(dma), + dma->cmd == HW_CMD_BLK_WRITE ? + PCI_DMA_TODEVICE : + PCI_DMA_FROMDEVICE); + } + spin_unlock(&card->ctrl[i].queue_lock); + } + + kfree(issued_dmas); + + return 0; +} + +void rsxx_eeh_cancel_dmas(struct rsxx_cardinfo *card) +{ + struct rsxx_dma *dma; + struct rsxx_dma *tmp; + int i; + + for (i = 0; i < card->n_targets; i++) { + spin_lock(&card->ctrl[i].queue_lock); + list_for_each_entry_safe(dma, tmp, &card->ctrl[i].queue, list) { + list_del(&dma->list); + + rsxx_complete_dma(&card->ctrl[i], dma, DMA_CANCELLED); + } + spin_unlock(&card->ctrl[i].queue_lock); + } +} + +int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card) +{ + struct rsxx_dma *dma; + int i; + + for (i = 0; i < card->n_targets; i++) { + spin_lock(&card->ctrl[i].queue_lock); + list_for_each_entry(dma, &card->ctrl[i].queue, list) { + dma->dma_addr = pci_map_page(card->dev, dma->page, + dma->pg_off, get_dma_size(dma), + dma->cmd == HW_CMD_BLK_WRITE ? + PCI_DMA_TODEVICE : + PCI_DMA_FROMDEVICE); + if (!dma->dma_addr) { + spin_unlock(&card->ctrl[i].queue_lock); + kmem_cache_free(rsxx_dma_pool, dma); + return -ENOMEM; + } + } + spin_unlock(&card->ctrl[i].queue_lock); + } + + return 0; +} int rsxx_dma_init(void) { diff --git a/drivers/block/rsxx/rsxx.h b/drivers/block/rsxx/rsxx.h index 2e50b65902b7..24ba3642bd89 100644 --- a/drivers/block/rsxx/rsxx.h +++ b/drivers/block/rsxx/rsxx.h @@ -27,15 +27,17 @@ /*----------------- IOCTL Definitions -------------------*/ +#define RSXX_MAX_DATA 8 + struct rsxx_reg_access { __u32 addr; __u32 cnt; __u32 stat; __u32 stream; - __u32 data[8]; + __u32 data[RSXX_MAX_DATA]; }; -#define RSXX_MAX_REG_CNT (8 * (sizeof(__u32))) +#define RSXX_MAX_REG_CNT (RSXX_MAX_DATA * (sizeof(__u32))) #define RSXX_IOC_MAGIC 'r' diff --git a/drivers/block/rsxx/rsxx_cfg.h b/drivers/block/rsxx/rsxx_cfg.h index c025fe5fdb70..f384c943846d 100644 --- a/drivers/block/rsxx/rsxx_cfg.h +++ b/drivers/block/rsxx/rsxx_cfg.h @@ -58,7 +58,7 @@ struct rsxx_card_cfg { }; /* Vendor ID Values */ -#define RSXX_VENDOR_ID_TMS_IBM 0 +#define RSXX_VENDOR_ID_IBM 0 #define RSXX_VENDOR_ID_DSI 1 #define RSXX_VENDOR_COUNT 2 diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h index a1ac907d8f4c..382e8bf5c03b 100644 --- a/drivers/block/rsxx/rsxx_priv.h +++ b/drivers/block/rsxx/rsxx_priv.h @@ -45,16 +45,13 @@ struct proc_cmd; -#define PCI_VENDOR_ID_TMS_IBM 0x15B6 -#define PCI_DEVICE_ID_RS70_FLASH 0x0019 -#define PCI_DEVICE_ID_RS70D_FLASH 0x001A -#define PCI_DEVICE_ID_RS80_FLASH 0x001C -#define PCI_DEVICE_ID_RS81_FLASH 0x001E +#define PCI_DEVICE_ID_FS70_FLASH 0x04A9 +#define PCI_DEVICE_ID_FS80_FLASH 0x04AA #define RS70_PCI_REV_SUPPORTED 4 #define DRIVER_NAME "rsxx" -#define DRIVER_VERSION "3.7" +#define DRIVER_VERSION "4.0" /* Block size is 4096 */ #define RSXX_HW_BLK_SHIFT 12 @@ -67,6 +64,9 @@ struct proc_cmd; #define RSXX_MAX_OUTSTANDING_CMDS 255 #define RSXX_CS_IDX_MASK 0xff +#define STATUS_BUFFER_SIZE8 4096 +#define COMMAND_BUFFER_SIZE8 4096 + #define RSXX_MAX_TARGETS 8 struct dma_tracker_list; @@ -91,6 +91,9 @@ struct rsxx_dma_stats { u32 discards_failed; u32 done_rescheduled; u32 issue_rescheduled; + u32 dma_sw_err; + u32 dma_hw_fault; + u32 dma_cancelled; u32 sw_q_depth; /* Number of DMAs on the SW queue. */ atomic_t hw_q_depth; /* Number of DMAs queued to HW. */ }; @@ -116,6 +119,7 @@ struct rsxx_dma_ctrl { struct rsxx_cardinfo { struct pci_dev *dev; unsigned int halt; + unsigned int eeh_state; void __iomem *regmap; spinlock_t irq_lock; @@ -224,6 +228,7 @@ enum rsxx_pci_regmap { PERF_RD512_HI = 0xac, PERF_WR512_LO = 0xb0, PERF_WR512_HI = 0xb4, + PCI_RECONFIG = 0xb8, }; enum rsxx_intr { @@ -237,6 +242,8 @@ enum rsxx_intr { CR_INTR_DMA5 = 0x00000080, CR_INTR_DMA6 = 0x00000100, CR_INTR_DMA7 = 0x00000200, + CR_INTR_ALL_C = 0x0000003f, + CR_INTR_ALL_G = 0x000003ff, CR_INTR_DMA_ALL = 0x000003f5, CR_INTR_ALL = 0xffffffff, }; @@ -253,8 +260,14 @@ enum rsxx_pci_reset { DMA_QUEUE_RESET = 0x00000001, }; +enum rsxx_hw_fifo_flush { + RSXX_FLUSH_BUSY = 0x00000002, + RSXX_FLUSH_TIMEOUT = 0x00000004, +}; + enum rsxx_pci_revision { RSXX_DISCARD_SUPPORT = 2, + RSXX_EEH_SUPPORT = 3, }; enum rsxx_creg_cmd { @@ -360,11 +373,17 @@ int rsxx_dma_setup(struct rsxx_cardinfo *card); void rsxx_dma_destroy(struct rsxx_cardinfo *card); int rsxx_dma_init(void); void rsxx_dma_cleanup(void); +void rsxx_dma_queue_reset(struct rsxx_cardinfo *card); +int rsxx_dma_configure(struct rsxx_cardinfo *card); int rsxx_dma_queue_bio(struct rsxx_cardinfo *card, struct bio *bio, atomic_t *n_dmas, rsxx_dma_cb cb, void *cb_data); +int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl); +int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card); +void rsxx_eeh_cancel_dmas(struct rsxx_cardinfo *card); +int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card); /***** cregs.c *****/ int rsxx_creg_write(struct rsxx_cardinfo *card, u32 addr, @@ -389,10 +408,11 @@ int rsxx_creg_setup(struct rsxx_cardinfo *card); void rsxx_creg_destroy(struct rsxx_cardinfo *card); int rsxx_creg_init(void); void rsxx_creg_cleanup(void); - int rsxx_reg_access(struct rsxx_cardinfo *card, struct rsxx_reg_access __user *ucmd, int read); +void rsxx_eeh_save_issued_creg(struct rsxx_cardinfo *card); +void rsxx_kick_creg_queue(struct rsxx_cardinfo *card); diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index de1f319f7bd7..dd5b2fed97e9 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -164,7 +164,7 @@ static void make_response(struct xen_blkif *blkif, u64 id, #define foreach_grant_safe(pos, n, rbtree, node) \ for ((pos) = container_of(rb_first((rbtree)), typeof(*(pos)), node), \ - (n) = rb_next(&(pos)->node); \ + (n) = (&(pos)->node != NULL) ? rb_next(&(pos)->node) : NULL; \ &(pos)->node != NULL; \ (pos) = container_of(n, typeof(*(pos)), node), \ (n) = (&(pos)->node != NULL) ? rb_next(&(pos)->node) : NULL) @@ -381,8 +381,8 @@ irqreturn_t xen_blkif_be_int(int irq, void *dev_id) static void print_stats(struct xen_blkif *blkif) { - pr_info("xen-blkback (%s): oo %3d | rd %4d | wr %4d | f %4d" - " | ds %4d\n", + pr_info("xen-blkback (%s): oo %3llu | rd %4llu | wr %4llu | f %4llu" + " | ds %4llu\n", current->comm, blkif->st_oo_req, blkif->st_rd_req, blkif->st_wr_req, blkif->st_f_req, blkif->st_ds_req); @@ -442,7 +442,7 @@ int xen_blkif_schedule(void *arg) } struct seg_buf { - unsigned long buf; + unsigned int offset; unsigned int nsec; }; /* @@ -621,30 +621,21 @@ static int xen_blkbk_map(struct blkif_request *req, * If this is a new persistent grant * save the handler */ - persistent_gnts[i]->handle = map[j].handle; - persistent_gnts[i]->dev_bus_addr = - map[j++].dev_bus_addr; + persistent_gnts[i]->handle = map[j++].handle; } pending_handle(pending_req, i) = persistent_gnts[i]->handle; if (ret) continue; - - seg[i].buf = persistent_gnts[i]->dev_bus_addr | - (req->u.rw.seg[i].first_sect << 9); } else { - pending_handle(pending_req, i) = map[j].handle; + pending_handle(pending_req, i) = map[j++].handle; bitmap_set(pending_req->unmap_seg, i, 1); - if (ret) { - j++; + if (ret) continue; - } - - seg[i].buf = map[j++].dev_bus_addr | - (req->u.rw.seg[i].first_sect << 9); } + seg[i].offset = (req->u.rw.seg[i].first_sect << 9); } return ret; } @@ -679,6 +670,16 @@ static int dispatch_discard_io(struct xen_blkif *blkif, return err; } +static int dispatch_other_io(struct xen_blkif *blkif, + struct blkif_request *req, + struct pending_req *pending_req) +{ + free_req(pending_req); + make_response(blkif, req->u.other.id, req->operation, + BLKIF_RSP_EOPNOTSUPP); + return -EIO; +} + static void xen_blk_drain_io(struct xen_blkif *blkif) { atomic_set(&blkif->drain, 1); @@ -800,17 +801,30 @@ __do_block_io_op(struct xen_blkif *blkif) /* Apply all sanity checks to /private copy/ of request. */ barrier(); - if (unlikely(req.operation == BLKIF_OP_DISCARD)) { + + switch (req.operation) { + case BLKIF_OP_READ: + case BLKIF_OP_WRITE: + case BLKIF_OP_WRITE_BARRIER: + case BLKIF_OP_FLUSH_DISKCACHE: + if (dispatch_rw_block_io(blkif, &req, pending_req)) + goto done; + break; + case BLKIF_OP_DISCARD: free_req(pending_req); if (dispatch_discard_io(blkif, &req)) - break; - } else if (dispatch_rw_block_io(blkif, &req, pending_req)) + goto done; break; + default: + if (dispatch_other_io(blkif, &req, pending_req)) + goto done; + break; + } /* Yield point for this unbounded loop. */ cond_resched(); } - +done: return more_to_do; } @@ -904,7 +918,8 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, pr_debug(DRV_PFX "access denied: %s of [%llu,%llu] on dev=%04x\n", operation == READ ? "read" : "write", preq.sector_number, - preq.sector_number + preq.nr_sects, preq.dev); + preq.sector_number + preq.nr_sects, + blkif->vbd.pdevice); goto fail_response; } @@ -947,7 +962,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, (bio_add_page(bio, pages[i], seg[i].nsec << 9, - seg[i].buf & ~PAGE_MASK) == 0)) { + seg[i].offset) == 0)) { bio = bio_alloc(GFP_KERNEL, nseg-i); if (unlikely(bio == NULL)) @@ -977,13 +992,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, bio->bi_end_io = end_block_io_op; } - /* - * We set it one so that the last submit_bio does not have to call - * atomic_inc. - */ atomic_set(&pending_req->pendcnt, nbio); - - /* Get a reference count for the disk queue and start sending I/O */ blk_start_plug(&plug); for (i = 0; i < nbio; i++) @@ -1011,6 +1020,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, fail_put_bio: for (i = 0; i < nbio; i++) bio_put(biolist[i]); + atomic_set(&pending_req->pendcnt, 1); __end_block_io_op(pending_req, -EINVAL); msleep(1); /* back off a bit */ return -EIO; diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 6072390c7f57..60103e2517ba 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -77,11 +77,18 @@ struct blkif_x86_32_request_discard { uint64_t nr_sectors; } __attribute__((__packed__)); +struct blkif_x86_32_request_other { + uint8_t _pad1; + blkif_vdev_t _pad2; + uint64_t id; /* private guest value, echoed in resp */ +} __attribute__((__packed__)); + struct blkif_x86_32_request { uint8_t operation; /* BLKIF_OP_??? */ union { struct blkif_x86_32_request_rw rw; struct blkif_x86_32_request_discard discard; + struct blkif_x86_32_request_other other; } u; } __attribute__((__packed__)); @@ -113,11 +120,19 @@ struct blkif_x86_64_request_discard { uint64_t nr_sectors; } __attribute__((__packed__)); +struct blkif_x86_64_request_other { + uint8_t _pad1; + blkif_vdev_t _pad2; + uint32_t _pad3; /* offsetof(blkif_..,u.discard.id)==8 */ + uint64_t id; /* private guest value, echoed in resp */ +} __attribute__((__packed__)); + struct blkif_x86_64_request { uint8_t operation; /* BLKIF_OP_??? */ union { struct blkif_x86_64_request_rw rw; struct blkif_x86_64_request_discard discard; + struct blkif_x86_64_request_other other; } u; } __attribute__((__packed__)); @@ -172,7 +187,6 @@ struct persistent_gnt { struct page *page; grant_ref_t gnt; grant_handle_t handle; - uint64_t dev_bus_addr; struct rb_node node; }; @@ -208,13 +222,13 @@ struct xen_blkif { /* statistics */ unsigned long st_print; - int st_rd_req; - int st_wr_req; - int st_oo_req; - int st_f_req; - int st_ds_req; - int st_rd_sect; - int st_wr_sect; + unsigned long long st_rd_req; + unsigned long long st_wr_req; + unsigned long long st_oo_req; + unsigned long long st_f_req; + unsigned long long st_ds_req; + unsigned long long st_rd_sect; + unsigned long long st_wr_sect; wait_queue_head_t waiting_to_free; }; @@ -278,6 +292,11 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst, dst->u.discard.nr_sectors = src->u.discard.nr_sectors; break; default: + /* + * Don't know how to translate this op. Only get the + * ID so failure can be reported to the frontend. + */ + dst->u.other.id = src->u.other.id; break; } } @@ -309,6 +328,11 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst, dst->u.discard.nr_sectors = src->u.discard.nr_sectors; break; default: + /* + * Don't know how to translate this op. Only get the + * ID so failure can be reported to the frontend. + */ + dst->u.other.id = src->u.other.id; break; } } diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 5e237f630c47..8bfd1bcf95ec 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -230,13 +230,13 @@ int __init xen_blkif_interface_init(void) } \ static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) -VBD_SHOW(oo_req, "%d\n", be->blkif->st_oo_req); -VBD_SHOW(rd_req, "%d\n", be->blkif->st_rd_req); -VBD_SHOW(wr_req, "%d\n", be->blkif->st_wr_req); -VBD_SHOW(f_req, "%d\n", be->blkif->st_f_req); -VBD_SHOW(ds_req, "%d\n", be->blkif->st_ds_req); -VBD_SHOW(rd_sect, "%d\n", be->blkif->st_rd_sect); -VBD_SHOW(wr_sect, "%d\n", be->blkif->st_wr_sect); +VBD_SHOW(oo_req, "%llu\n", be->blkif->st_oo_req); +VBD_SHOW(rd_req, "%llu\n", be->blkif->st_rd_req); +VBD_SHOW(wr_req, "%llu\n", be->blkif->st_wr_req); +VBD_SHOW(f_req, "%llu\n", be->blkif->st_f_req); +VBD_SHOW(ds_req, "%llu\n", be->blkif->st_ds_req); +VBD_SHOW(rd_sect, "%llu\n", be->blkif->st_rd_sect); +VBD_SHOW(wr_sect, "%llu\n", be->blkif->st_wr_sect); static struct attribute *xen_vbdstat_attrs[] = { &dev_attr_oo_req.attr, diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index c3dae2e0f290..a894f88762d8 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -44,7 +44,7 @@ #include <linux/mutex.h> #include <linux/scatterlist.h> #include <linux/bitmap.h> -#include <linux/llist.h> +#include <linux/list.h> #include <xen/xen.h> #include <xen/xenbus.h> @@ -68,13 +68,12 @@ enum blkif_state { struct grant { grant_ref_t gref; unsigned long pfn; - struct llist_node node; + struct list_head node; }; struct blk_shadow { struct blkif_request req; struct request *request; - unsigned long frame[BLKIF_MAX_SEGMENTS_PER_REQUEST]; struct grant *grants_used[BLKIF_MAX_SEGMENTS_PER_REQUEST]; }; @@ -105,7 +104,7 @@ struct blkfront_info struct work_struct work; struct gnttab_free_callback callback; struct blk_shadow shadow[BLK_RING_SIZE]; - struct llist_head persistent_gnts; + struct list_head persistent_gnts; unsigned int persistent_gnts_c; unsigned long shadow_free; unsigned int feature_flush; @@ -165,6 +164,69 @@ static int add_id_to_freelist(struct blkfront_info *info, return 0; } +static int fill_grant_buffer(struct blkfront_info *info, int num) +{ + struct page *granted_page; + struct grant *gnt_list_entry, *n; + int i = 0; + + while(i < num) { + gnt_list_entry = kzalloc(sizeof(struct grant), GFP_NOIO); + if (!gnt_list_entry) + goto out_of_memory; + + granted_page = alloc_page(GFP_NOIO); + if (!granted_page) { + kfree(gnt_list_entry); + goto out_of_memory; + } + + gnt_list_entry->pfn = page_to_pfn(granted_page); + gnt_list_entry->gref = GRANT_INVALID_REF; + list_add(&gnt_list_entry->node, &info->persistent_gnts); + i++; + } + + return 0; + +out_of_memory: + list_for_each_entry_safe(gnt_list_entry, n, + &info->persistent_gnts, node) { + list_del(&gnt_list_entry->node); + __free_page(pfn_to_page(gnt_list_entry->pfn)); + kfree(gnt_list_entry); + i--; + } + BUG_ON(i != 0); + return -ENOMEM; +} + +static struct grant *get_grant(grant_ref_t *gref_head, + struct blkfront_info *info) +{ + struct grant *gnt_list_entry; + unsigned long buffer_mfn; + + BUG_ON(list_empty(&info->persistent_gnts)); + gnt_list_entry = list_first_entry(&info->persistent_gnts, struct grant, + node); + list_del(&gnt_list_entry->node); + + if (gnt_list_entry->gref != GRANT_INVALID_REF) { + info->persistent_gnts_c--; + return gnt_list_entry; + } + + /* Assign a gref to this page */ + gnt_list_entry->gref = gnttab_claim_grant_reference(gref_head); + BUG_ON(gnt_list_entry->gref == -ENOSPC); + buffer_mfn = pfn_to_mfn(gnt_list_entry->pfn); + gnttab_grant_foreign_access_ref(gnt_list_entry->gref, + info->xbdev->otherend_id, + buffer_mfn, 0); + return gnt_list_entry; +} + static const char *op_name(int op) { static const char *const names[] = { @@ -293,7 +355,6 @@ static int blkif_ioctl(struct block_device *bdev, fmode_t mode, static int blkif_queue_request(struct request *req) { struct blkfront_info *info = req->rq_disk->private_data; - unsigned long buffer_mfn; struct blkif_request *ring_req; unsigned long id; unsigned int fsect, lsect; @@ -306,7 +367,6 @@ static int blkif_queue_request(struct request *req) */ bool new_persistent_gnts; grant_ref_t gref_head; - struct page *granted_page; struct grant *gnt_list_entry = NULL; struct scatterlist *sg; @@ -370,41 +430,8 @@ static int blkif_queue_request(struct request *req) fsect = sg->offset >> 9; lsect = fsect + (sg->length >> 9) - 1; - if (info->persistent_gnts_c) { - BUG_ON(llist_empty(&info->persistent_gnts)); - gnt_list_entry = llist_entry( - llist_del_first(&info->persistent_gnts), - struct grant, node); - - ref = gnt_list_entry->gref; - buffer_mfn = pfn_to_mfn(gnt_list_entry->pfn); - info->persistent_gnts_c--; - } else { - ref = gnttab_claim_grant_reference(&gref_head); - BUG_ON(ref == -ENOSPC); - - gnt_list_entry = - kmalloc(sizeof(struct grant), - GFP_ATOMIC); - if (!gnt_list_entry) - return -ENOMEM; - - granted_page = alloc_page(GFP_ATOMIC); - if (!granted_page) { - kfree(gnt_list_entry); - return -ENOMEM; - } - - gnt_list_entry->pfn = - page_to_pfn(granted_page); - gnt_list_entry->gref = ref; - - buffer_mfn = pfn_to_mfn(page_to_pfn( - granted_page)); - gnttab_grant_foreign_access_ref(ref, - info->xbdev->otherend_id, - buffer_mfn, 0); - } + gnt_list_entry = get_grant(&gref_head, info); + ref = gnt_list_entry->gref; info->shadow[id].grants_used[i] = gnt_list_entry; @@ -435,7 +462,6 @@ static int blkif_queue_request(struct request *req) kunmap_atomic(shared_data); } - info->shadow[id].frame[i] = mfn_to_pfn(buffer_mfn); ring_req->u.rw.seg[i] = (struct blkif_request_segment) { .gref = ref, @@ -790,9 +816,8 @@ static void blkif_restart_queue(struct work_struct *work) static void blkif_free(struct blkfront_info *info, int suspend) { - struct llist_node *all_gnts; - struct grant *persistent_gnt, *tmp; - struct llist_node *n; + struct grant *persistent_gnt; + struct grant *n; /* Prevent new requests being issued until we fix things up. */ spin_lock_irq(&info->io_lock); @@ -803,22 +828,20 @@ static void blkif_free(struct blkfront_info *info, int suspend) blk_stop_queue(info->rq); /* Remove all persistent grants */ - if (info->persistent_gnts_c) { - all_gnts = llist_del_all(&info->persistent_gnts); - persistent_gnt = llist_entry(all_gnts, typeof(*(persistent_gnt)), node); - while (persistent_gnt) { - gnttab_end_foreign_access(persistent_gnt->gref, 0, 0UL); + if (!list_empty(&info->persistent_gnts)) { + list_for_each_entry_safe(persistent_gnt, n, + &info->persistent_gnts, node) { + list_del(&persistent_gnt->node); + if (persistent_gnt->gref != GRANT_INVALID_REF) { + gnttab_end_foreign_access(persistent_gnt->gref, + 0, 0UL); + info->persistent_gnts_c--; + } __free_page(pfn_to_page(persistent_gnt->pfn)); - tmp = persistent_gnt; - n = persistent_gnt->node.next; - if (n) - persistent_gnt = llist_entry(n, typeof(*(persistent_gnt)), node); - else - persistent_gnt = NULL; - kfree(tmp); + kfree(persistent_gnt); } - info->persistent_gnts_c = 0; } + BUG_ON(info->persistent_gnts_c != 0); /* No more gnttab callback work. */ gnttab_cancel_free_callback(&info->callback); @@ -875,7 +898,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info, } /* Add the persistent grant into the list of free grants */ for (i = 0; i < s->req.u.rw.nr_segments; i++) { - llist_add(&s->grants_used[i]->node, &info->persistent_gnts); + list_add(&s->grants_used[i]->node, &info->persistent_gnts); info->persistent_gnts_c++; } } @@ -1013,6 +1036,12 @@ static int setup_blkring(struct xenbus_device *dev, sg_init_table(info->sg, BLKIF_MAX_SEGMENTS_PER_REQUEST); + /* Allocate memory for grants */ + err = fill_grant_buffer(info, BLK_RING_SIZE * + BLKIF_MAX_SEGMENTS_PER_REQUEST); + if (err) + goto fail; + err = xenbus_grant_ring(dev, virt_to_mfn(info->ring.sring)); if (err < 0) { free_page((unsigned long)sring); @@ -1171,7 +1200,7 @@ static int blkfront_probe(struct xenbus_device *dev, spin_lock_init(&info->io_lock); info->xbdev = dev; info->vdevice = vdevice; - init_llist_head(&info->persistent_gnts); + INIT_LIST_HEAD(&info->persistent_gnts); info->persistent_gnts_c = 0; info->connected = BLKIF_STATE_DISCONNECTED; INIT_WORK(&info->work, blkif_restart_queue); @@ -1203,11 +1232,10 @@ static int blkif_recover(struct blkfront_info *info) int j; /* Stage 1: Make a safe copy of the shadow state. */ - copy = kmalloc(sizeof(info->shadow), + copy = kmemdup(info->shadow, sizeof(info->shadow), GFP_NOIO | __GFP_REPEAT | __GFP_HIGH); if (!copy) return -ENOMEM; - memcpy(copy, info->shadow, sizeof(info->shadow)); /* Stage 2: Set up free list. */ memset(&info->shadow, 0, sizeof(info->shadow)); @@ -1236,7 +1264,7 @@ static int blkif_recover(struct blkfront_info *info) gnttab_grant_foreign_access_ref( req->u.rw.seg[j].gref, info->xbdev->otherend_id, - pfn_to_mfn(info->shadow[req->u.rw.id].frame[j]), + pfn_to_mfn(copy[i].grants_used[j]->pfn), 0); } info->shadow[req->u.rw.id].req = *req; diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index a8a41e07a221..6aab00ef4379 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -73,9 +73,13 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x03F0, 0x311D) }, /* Atheros AR3012 with sflash firmware*/ + { USB_DEVICE(0x0CF3, 0x0036) }, { USB_DEVICE(0x0CF3, 0x3004) }, + { USB_DEVICE(0x0CF3, 0x3008) }, { USB_DEVICE(0x0CF3, 0x311D) }, + { USB_DEVICE(0x0CF3, 0x817a) }, { USB_DEVICE(0x13d3, 0x3375) }, + { USB_DEVICE(0x04CA, 0x3004) }, { USB_DEVICE(0x04CA, 0x3005) }, { USB_DEVICE(0x04CA, 0x3006) }, { USB_DEVICE(0x04CA, 0x3008) }, @@ -105,9 +109,13 @@ MODULE_DEVICE_TABLE(usb, ath3k_table); static struct usb_device_id ath3k_blist_tbl[] = { /* Atheros AR3012 with sflash firmware*/ + { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 7e351e345476..2cc5f774a29c 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -131,9 +131,13 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, /* Atheros 3012 with sflash firmware */ + { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c index b5538bba7a10..09c63315e579 100644 --- a/drivers/clk/clk-vt8500.c +++ b/drivers/clk/clk-vt8500.c @@ -157,7 +157,7 @@ static int vt8500_dclk_set_rate(struct clk_hw *hw, unsigned long rate, divisor = parent_rate / rate; /* If prate / rate would be decimal, incr the divisor */ - if (rate * divisor < *prate) + if (rate * divisor < parent_rate) divisor++; if (divisor == cdev->div_mask + 1) diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 937bc286591f..57a8774f0b4e 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -730,7 +730,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) { cpumask_copy(policy->cpus, perf->shared_cpu_map); } - cpumask_copy(policy->related_cpus, perf->shared_cpu_map); #ifdef CONFIG_SMP dmi_check_system(sw_any_bug_dmi_table); @@ -742,7 +741,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) if (check_amd_hwpstate_cpu(cpu) && !acpi_pstate_strict) { cpumask_clear(policy->cpus); cpumask_set_cpu(cpu, policy->cpus); - cpumask_copy(policy->related_cpus, cpu_sibling_mask(cpu)); policy->shared_type = CPUFREQ_SHARED_TYPE_HW; pr_info_once(PFX "overriding BIOS provided _PSD data\n"); } diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 2fd779eb1ed1..bfd6273fd873 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -180,15 +180,19 @@ static void cpufreq_stats_free_sysfs(unsigned int cpu) { struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); - if (!cpufreq_frequency_get_table(cpu)) + if (!policy) return; - if (policy && !policy_is_shared(policy)) { + if (!cpufreq_frequency_get_table(cpu)) + goto put_ref; + + if (!policy_is_shared(policy)) { pr_debug("%s: Free sysfs stat\n", __func__); sysfs_remove_group(&policy->kobj, &stats_attr_group); } - if (policy) - cpufreq_cpu_put(policy); + +put_ref: + cpufreq_cpu_put(policy); } static int cpufreq_stats_create_table(struct cpufreq_policy *policy, diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index f6dd1e761129..ad72922919ed 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -358,14 +358,14 @@ static void intel_pstate_sysfs_expose_params(void) static int intel_pstate_min_pstate(void) { u64 value; - rdmsrl(0xCE, value); + rdmsrl(MSR_PLATFORM_INFO, value); return (value >> 40) & 0xFF; } static int intel_pstate_max_pstate(void) { u64 value; - rdmsrl(0xCE, value); + rdmsrl(MSR_PLATFORM_INFO, value); return (value >> 8) & 0xFF; } @@ -373,7 +373,7 @@ static int intel_pstate_turbo_pstate(void) { u64 value; int nont, ret; - rdmsrl(0x1AD, value); + rdmsrl(MSR_NHM_TURBO_RATIO_LIMIT, value); nont = intel_pstate_max_pstate(); ret = ((value) & 255); if (ret <= nont) @@ -454,7 +454,7 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu, sample->idletime_us * 100, sample->duration_us); core_pct = div64_u64(sample->aperf * 100, sample->mperf); - sample->freq = cpu->pstate.turbo_pstate * core_pct * 1000; + sample->freq = cpu->pstate.max_pstate * core_pct * 1000; sample->core_pct_busy = div_s64((sample->pstate_pct_busy * core_pct), 100); @@ -752,6 +752,29 @@ static struct cpufreq_driver intel_pstate_driver = { static int __initdata no_load; +static int intel_pstate_msrs_not_valid(void) +{ + /* Check that all the msr's we are using are valid. */ + u64 aperf, mperf, tmp; + + rdmsrl(MSR_IA32_APERF, aperf); + rdmsrl(MSR_IA32_MPERF, mperf); + + if (!intel_pstate_min_pstate() || + !intel_pstate_max_pstate() || + !intel_pstate_turbo_pstate()) + return -ENODEV; + + rdmsrl(MSR_IA32_APERF, tmp); + if (!(tmp - aperf)) + return -ENODEV; + + rdmsrl(MSR_IA32_MPERF, tmp); + if (!(tmp - mperf)) + return -ENODEV; + + return 0; +} static int __init intel_pstate_init(void) { int cpu, rc = 0; @@ -764,6 +787,9 @@ static int __init intel_pstate_init(void) if (!id) return -ENODEV; + if (intel_pstate_msrs_not_valid()) + return -ENODEV; + pr_info("Intel P-state driver initializing.\n"); all_cpu_data = vmalloc(sizeof(void *) * num_possible_cpus()); diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index b2a0a0726a54..cf268b14ae9a 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -1650,11 +1650,7 @@ struct caam_alg_template { }; static struct caam_alg_template driver_algs[] = { - /* - * single-pass ipsec_esp descriptor - * authencesn(*,*) is also registered, although not present - * explicitly here. - */ + /* single-pass ipsec_esp descriptor */ { .name = "authenc(hmac(md5),cbc(aes))", .driver_name = "authenc-hmac-md5-cbc-aes-caam", @@ -2217,9 +2213,7 @@ static int __init caam_algapi_init(void) for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { /* TODO: check if h/w supports alg */ struct caam_crypto_alg *t_alg; - bool done = false; -authencesn: t_alg = caam_alg_alloc(ctrldev, &driver_algs[i]); if (IS_ERR(t_alg)) { err = PTR_ERR(t_alg); @@ -2233,25 +2227,8 @@ authencesn: dev_warn(ctrldev, "%s alg registration failed\n", t_alg->crypto_alg.cra_driver_name); kfree(t_alg); - } else { + } else list_add_tail(&t_alg->entry, &priv->alg_list); - if (driver_algs[i].type == CRYPTO_ALG_TYPE_AEAD && - !memcmp(driver_algs[i].name, "authenc", 7) && - !done) { - char *name; - - name = driver_algs[i].name; - memmove(name + 10, name + 7, strlen(name) - 7); - memcpy(name + 7, "esn", 3); - - name = driver_algs[i].driver_name; - memmove(name + 10, name + 7, strlen(name) - 7); - memcpy(name + 7, "esn", 3); - - done = true; - goto authencesn; - } - } } if (!list_empty(&priv->alg_list)) dev_info(ctrldev, "%s algorithms registered in /proc/crypto\n", diff --git a/drivers/crypto/caam/compat.h b/drivers/crypto/caam/compat.h index cf15e7813801..762aeff626ac 100644 --- a/drivers/crypto/caam/compat.h +++ b/drivers/crypto/caam/compat.h @@ -23,7 +23,6 @@ #include <linux/types.h> #include <linux/debugfs.h> #include <linux/circ_buf.h> -#include <linux/string.h> #include <net/xfrm.h> #include <crypto/algapi.h> diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 09b184adf31b..5b2b5e61e4f9 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -38,7 +38,6 @@ #include <linux/spinlock.h> #include <linux/rtnetlink.h> #include <linux/slab.h> -#include <linux/string.h> #include <crypto/algapi.h> #include <crypto/aes.h> @@ -1974,11 +1973,7 @@ struct talitos_alg_template { }; static struct talitos_alg_template driver_algs[] = { - /* - * AEAD algorithms. These use a single-pass ipsec_esp descriptor. - * authencesn(*,*) is also registered, although not present - * explicitly here. - */ + /* AEAD algorithms. These use a single-pass ipsec_esp descriptor */ { .type = CRYPTO_ALG_TYPE_AEAD, .alg.crypto = { .cra_name = "authenc(hmac(sha1),cbc(aes))", @@ -2820,9 +2815,7 @@ static int talitos_probe(struct platform_device *ofdev) if (hw_supports(dev, driver_algs[i].desc_hdr_template)) { struct talitos_crypto_alg *t_alg; char *name = NULL; - bool authenc = false; -authencesn: t_alg = talitos_alg_alloc(dev, &driver_algs[i]); if (IS_ERR(t_alg)) { err = PTR_ERR(t_alg); @@ -2837,8 +2830,6 @@ authencesn: err = crypto_register_alg( &t_alg->algt.alg.crypto); name = t_alg->algt.alg.crypto.cra_driver_name; - authenc = authenc ? !authenc : - !(bool)memcmp(name, "authenc", 7); break; case CRYPTO_ALG_TYPE_AHASH: err = crypto_register_ahash( @@ -2851,25 +2842,8 @@ authencesn: dev_err(dev, "%s alg registration failed\n", name); kfree(t_alg); - } else { + } else list_add_tail(&t_alg->entry, &priv->alg_list); - if (authenc) { - struct crypto_alg *alg = - &driver_algs[i].alg.crypto; - - name = alg->cra_name; - memmove(name + 10, name + 7, - strlen(name) - 7); - memcpy(name + 7, "esn", 3); - - name = alg->cra_driver_name; - memmove(name + 10, name + 7, - strlen(name) - 7); - memcpy(name + 7, "esn", 3); - - goto authencesn; - } - } } } if (!list_empty(&priv->alg_list)) diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index c599558faeda..43a5329d4483 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -1001,6 +1001,13 @@ static inline void convert_burst(u32 *maxburst) *maxburst = 0; } +static inline void convert_slave_id(struct dw_dma_chan *dwc) +{ + struct dw_dma *dw = to_dw_dma(dwc->chan.device); + + dwc->dma_sconfig.slave_id -= dw->request_line_base; +} + static int set_runtime_config(struct dma_chan *chan, struct dma_slave_config *sconfig) { @@ -1015,6 +1022,7 @@ set_runtime_config(struct dma_chan *chan, struct dma_slave_config *sconfig) convert_burst(&dwc->dma_sconfig.src_maxburst); convert_burst(&dwc->dma_sconfig.dst_maxburst); + convert_slave_id(dwc); return 0; } @@ -1276,9 +1284,9 @@ static struct dma_chan *dw_dma_xlate(struct of_phandle_args *dma_spec, if (dma_spec->args_count != 3) return NULL; - fargs.req = be32_to_cpup(dma_spec->args+0); - fargs.src = be32_to_cpup(dma_spec->args+1); - fargs.dst = be32_to_cpup(dma_spec->args+2); + fargs.req = dma_spec->args[0]; + fargs.src = dma_spec->args[1]; + fargs.dst = dma_spec->args[2]; if (WARN_ON(fargs.req >= DW_DMA_MAX_NR_REQUESTS || fargs.src >= dw->nr_masters || @@ -1628,6 +1636,7 @@ dw_dma_parse_dt(struct platform_device *pdev) static int dw_probe(struct platform_device *pdev) { + const struct platform_device_id *match; struct dw_dma_platform_data *pdata; struct resource *io; struct dw_dma *dw; @@ -1711,6 +1720,11 @@ static int dw_probe(struct platform_device *pdev) memcpy(dw->data_width, pdata->data_width, 4); } + /* Get the base request line if set */ + match = platform_get_device_id(pdev); + if (match) + dw->request_line_base = (unsigned int)match->driver_data; + /* Calculate all channel mask before DMA setup */ dw->all_chan_mask = (1 << nr_channels) - 1; @@ -1906,7 +1920,8 @@ MODULE_DEVICE_TABLE(of, dw_dma_id_table); #endif static const struct platform_device_id dw_dma_ids[] = { - { "INTL9C60", 0 }, + /* Name, Request Line Base */ + { "INTL9C60", (kernel_ulong_t)16 }, { } }; diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h index cf0ce5c77d60..4d02c3669b75 100644 --- a/drivers/dma/dw_dmac_regs.h +++ b/drivers/dma/dw_dmac_regs.h @@ -247,6 +247,7 @@ struct dw_dma { /* hardware configuration */ unsigned char nr_masters; unsigned char data_width[4]; + unsigned int request_line_base; struct dw_dma_chan chan[0]; }; diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 910b0116c128..e1d13c463c90 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -2048,12 +2048,18 @@ static int init_csrows(struct mem_ctl_info *mci) edac_dbg(1, "MC node: %d, csrow: %d\n", pvt->mc_node_id, i); - if (row_dct0) + if (row_dct0) { nr_pages = amd64_csrow_nr_pages(pvt, 0, i); + csrow->channels[0]->dimm->nr_pages = nr_pages; + } /* K8 has only one DCT */ - if (boot_cpu_data.x86 != 0xf && row_dct1) - nr_pages += amd64_csrow_nr_pages(pvt, 1, i); + if (boot_cpu_data.x86 != 0xf && row_dct1) { + int row_dct1_pages = amd64_csrow_nr_pages(pvt, 1, i); + + csrow->channels[1]->dimm->nr_pages = row_dct1_pages; + nr_pages += row_dct1_pages; + } mtype = amd64_determine_memory_type(pvt, i); @@ -2072,9 +2078,7 @@ static int init_csrows(struct mem_ctl_info *mci) dimm = csrow->channels[j]->dimm; dimm->mtype = mtype; dimm->edac_mode = edac_mode; - dimm->nr_pages = nr_pages; } - csrow->nr_pages = nr_pages; } return empty; @@ -2419,7 +2423,6 @@ static int amd64_init_one_instance(struct pci_dev *F2) mci->pvt_info = pvt; mci->pdev = &pvt->F2->dev; - mci->csbased = 1; setup_mci_misc_attrs(mci, fam_type); diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index cdb81aa73ab7..27e86d938262 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -86,7 +86,7 @@ static void edac_mc_dump_dimm(struct dimm_info *dimm, int number) edac_dimm_info_location(dimm, location, sizeof(location)); edac_dbg(4, "%s%i: %smapped as virtual row %d, chan %d\n", - dimm->mci->mem_is_per_rank ? "rank" : "dimm", + dimm->mci->csbased ? "rank" : "dimm", number, location, dimm->csrow, dimm->cschannel); edac_dbg(4, " dimm = %p\n", dimm); edac_dbg(4, " dimm->label = '%s'\n", dimm->label); @@ -341,7 +341,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num, memcpy(mci->layers, layers, sizeof(*layer) * n_layers); mci->nr_csrows = tot_csrows; mci->num_cschannel = tot_channels; - mci->mem_is_per_rank = per_rank; + mci->csbased = per_rank; /* * Alocate and fill the csrow/channels structs @@ -1235,7 +1235,7 @@ void edac_mc_handle_error(const enum hw_event_mc_err_type type, * incrementing the compat API counters */ edac_dbg(4, "%s csrows map: (%d,%d)\n", - mci->mem_is_per_rank ? "rank" : "dimm", + mci->csbased ? "rank" : "dimm", dimm->csrow, dimm->cschannel); if (row == -1) row = dimm->csrow; diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 4f4b6137d74e..5899a76eec3b 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -143,7 +143,7 @@ static const char *edac_caps[] = { * and the per-dimm/per-rank one */ #define DEVICE_ATTR_LEGACY(_name, _mode, _show, _store) \ - struct device_attribute dev_attr_legacy_##_name = __ATTR(_name, _mode, _show, _store) + static struct device_attribute dev_attr_legacy_##_name = __ATTR(_name, _mode, _show, _store) struct dev_ch_attribute { struct device_attribute attr; @@ -180,9 +180,6 @@ static ssize_t csrow_size_show(struct device *dev, int i; u32 nr_pages = 0; - if (csrow->mci->csbased) - return sprintf(data, "%u\n", PAGES_TO_MiB(csrow->nr_pages)); - for (i = 0; i < csrow->nr_channels; i++) nr_pages += csrow->channels[i]->dimm->nr_pages; return sprintf(data, "%u\n", PAGES_TO_MiB(nr_pages)); @@ -612,7 +609,7 @@ static int edac_create_dimm_object(struct mem_ctl_info *mci, device_initialize(&dimm->dev); dimm->dev.parent = &mci->dev; - if (mci->mem_is_per_rank) + if (mci->csbased) dev_set_name(&dimm->dev, "rank%d", index); else dev_set_name(&dimm->dev, "dimm%d", index); @@ -778,14 +775,10 @@ static ssize_t mci_size_mb_show(struct device *dev, for (csrow_idx = 0; csrow_idx < mci->nr_csrows; csrow_idx++) { struct csrow_info *csrow = mci->csrows[csrow_idx]; - if (csrow->mci->csbased) { - total_pages += csrow->nr_pages; - } else { - for (j = 0; j < csrow->nr_channels; j++) { - struct dimm_info *dimm = csrow->channels[j]->dimm; + for (j = 0; j < csrow->nr_channels; j++) { + struct dimm_info *dimm = csrow->channels[j]->dimm; - total_pages += dimm->nr_pages; - } + total_pages += dimm->nr_pages; } } diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index b70e3815c459..8f3c947b0029 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -32,6 +32,38 @@ #define DEV_NAME "max77693-muic" #define DELAY_MS_DEFAULT 20000 /* unit: millisecond */ +/* + * Default value of MAX77693 register to bring up MUIC device. + * If user don't set some initial value for MUIC device through platform data, + * extcon-max77693 driver use 'default_init_data' to bring up base operation + * of MAX77693 MUIC device. + */ +struct max77693_reg_data default_init_data[] = { + { + /* STATUS2 - [3]ChgDetRun */ + .addr = MAX77693_MUIC_REG_STATUS2, + .data = STATUS2_CHGDETRUN_MASK, + }, { + /* INTMASK1 - Unmask [3]ADC1KM,[0]ADCM */ + .addr = MAX77693_MUIC_REG_INTMASK1, + .data = INTMASK1_ADC1K_MASK + | INTMASK1_ADC_MASK, + }, { + /* INTMASK2 - Unmask [0]ChgTypM */ + .addr = MAX77693_MUIC_REG_INTMASK2, + .data = INTMASK2_CHGTYP_MASK, + }, { + /* INTMASK3 - Mask all of interrupts */ + .addr = MAX77693_MUIC_REG_INTMASK3, + .data = 0x0, + }, { + /* CDETCTRL2 */ + .addr = MAX77693_MUIC_REG_CDETCTRL2, + .data = CDETCTRL2_VIDRMEN_MASK + | CDETCTRL2_DXOVPEN_MASK, + }, +}; + enum max77693_muic_adc_debounce_time { ADC_DEBOUNCE_TIME_5MS = 0, ADC_DEBOUNCE_TIME_10MS, @@ -1045,8 +1077,9 @@ static int max77693_muic_probe(struct platform_device *pdev) { struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent); struct max77693_platform_data *pdata = dev_get_platdata(max77693->dev); - struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; struct max77693_muic_info *info; + struct max77693_reg_data *init_data; + int num_init_data; int delay_jiffies; int ret; int i; @@ -1145,15 +1178,25 @@ static int max77693_muic_probe(struct platform_device *pdev) goto err_irq; } - /* Initialize MUIC register by using platform data */ - for (i = 0 ; i < muic_pdata->num_init_data ; i++) { - enum max77693_irq_source irq_src = MAX77693_IRQ_GROUP_NR; + + /* Initialize MUIC register by using platform data or default data */ + if (pdata->muic_data) { + init_data = pdata->muic_data->init_data; + num_init_data = pdata->muic_data->num_init_data; + } else { + init_data = default_init_data; + num_init_data = ARRAY_SIZE(default_init_data); + } + + for (i = 0 ; i < num_init_data ; i++) { + enum max77693_irq_source irq_src + = MAX77693_IRQ_GROUP_NR; max77693_write_reg(info->max77693->regmap_muic, - muic_pdata->init_data[i].addr, - muic_pdata->init_data[i].data); + init_data[i].addr, + init_data[i].data); - switch (muic_pdata->init_data[i].addr) { + switch (init_data[i].addr) { case MAX77693_MUIC_REG_INTMASK1: irq_src = MUIC_INT1; break; @@ -1167,22 +1210,40 @@ static int max77693_muic_probe(struct platform_device *pdev) if (irq_src < MAX77693_IRQ_GROUP_NR) info->max77693->irq_masks_cur[irq_src] - = muic_pdata->init_data[i].data; + = init_data[i].data; } - /* - * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB - * h/w path of COMP2/COMN1 on CONTROL1 register. - */ - if (muic_pdata->path_uart) - info->path_uart = muic_pdata->path_uart; - else - info->path_uart = CONTROL1_SW_UART; + if (pdata->muic_data) { + struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; - if (muic_pdata->path_usb) - info->path_usb = muic_pdata->path_usb; - else + /* + * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB + * h/w path of COMP2/COMN1 on CONTROL1 register. + */ + if (muic_pdata->path_uart) + info->path_uart = muic_pdata->path_uart; + else + info->path_uart = CONTROL1_SW_UART; + + if (muic_pdata->path_usb) + info->path_usb = muic_pdata->path_usb; + else + info->path_usb = CONTROL1_SW_USB; + + /* + * Default delay time for detecting cable state + * after certain time. + */ + if (muic_pdata->detcable_delay_ms) + delay_jiffies = + msecs_to_jiffies(muic_pdata->detcable_delay_ms); + else + delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); + } else { info->path_usb = CONTROL1_SW_USB; + info->path_uart = CONTROL1_SW_UART; + delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); + } /* Set initial path for UART */ max77693_muic_set_path(info, info->path_uart, true); @@ -1208,10 +1269,6 @@ static int max77693_muic_probe(struct platform_device *pdev) * driver should notify cable state to upper layer. */ INIT_DELAYED_WORK(&info->wq_detcable, max77693_muic_detect_cable_wq); - if (muic_pdata->detcable_delay_ms) - delay_jiffies = msecs_to_jiffies(muic_pdata->detcable_delay_ms); - else - delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); schedule_delayed_work(&info->wq_detcable, delay_jiffies); return ret; diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c index e636d950ad6c..69641bcae325 100644 --- a/drivers/extcon/extcon-max8997.c +++ b/drivers/extcon/extcon-max8997.c @@ -712,29 +712,45 @@ static int max8997_muic_probe(struct platform_device *pdev) goto err_irq; } - /* Initialize registers according to platform data */ if (pdata->muic_pdata) { - struct max8997_muic_platform_data *mdata = info->muic_pdata; - - for (i = 0; i < mdata->num_init_data; i++) { - max8997_write_reg(info->muic, mdata->init_data[i].addr, - mdata->init_data[i].data); + struct max8997_muic_platform_data *muic_pdata + = pdata->muic_pdata; + + /* Initialize registers according to platform data */ + for (i = 0; i < muic_pdata->num_init_data; i++) { + max8997_write_reg(info->muic, + muic_pdata->init_data[i].addr, + muic_pdata->init_data[i].data); } - } - /* - * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB - * h/w path of COMP2/COMN1 on CONTROL1 register. - */ - if (pdata->muic_pdata->path_uart) - info->path_uart = pdata->muic_pdata->path_uart; - else - info->path_uart = CONTROL1_SW_UART; + /* + * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB + * h/w path of COMP2/COMN1 on CONTROL1 register. + */ + if (muic_pdata->path_uart) + info->path_uart = muic_pdata->path_uart; + else + info->path_uart = CONTROL1_SW_UART; - if (pdata->muic_pdata->path_usb) - info->path_usb = pdata->muic_pdata->path_usb; - else + if (muic_pdata->path_usb) + info->path_usb = muic_pdata->path_usb; + else + info->path_usb = CONTROL1_SW_USB; + + /* + * Default delay time for detecting cable state + * after certain time. + */ + if (muic_pdata->detcable_delay_ms) + delay_jiffies = + msecs_to_jiffies(muic_pdata->detcable_delay_ms); + else + delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); + } else { + info->path_uart = CONTROL1_SW_UART; info->path_usb = CONTROL1_SW_USB; + delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); + } /* Set initial path for UART */ max8997_muic_set_path(info, info->path_uart, true); @@ -751,10 +767,6 @@ static int max8997_muic_probe(struct platform_device *pdev) * driver should notify cable state to upper layer. */ INIT_DELAYED_WORK(&info->wq_detcable, max8997_muic_detect_cable_wq); - if (pdata->muic_pdata->detcable_delay_ms) - delay_jiffies = msecs_to_jiffies(pdata->muic_pdata->detcable_delay_ms); - else - delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); schedule_delayed_work(&info->wq_detcable, delay_jiffies); return 0; diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 9b00072a020f..42c759a4d047 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -53,6 +53,24 @@ config EFI_VARS Subsequent efibootmgr releases may be found at: <http://linux.dell.com/efibootmgr> +config EFI_VARS_PSTORE + bool "Register efivars backend for pstore" + depends on EFI_VARS && PSTORE + default y + help + Say Y here to enable use efivars as a backend to pstore. This + will allow writing console messages, crash dumps, or anything + else supported by pstore to EFI variables. + +config EFI_VARS_PSTORE_DEFAULT_DISABLE + bool "Disable using efivars as a pstore backend by default" + depends on EFI_VARS_PSTORE + default n + help + Saying Y here will disable the use of efivars as a storage + backend for pstore by default. This setting can be overridden + using the efivars module's pstore_disable parameter. + config EFI_PCDP bool "Console device selection via EFI PCDP or HCDP table" depends on ACPI && EFI && IA64 diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index fe62aa392239..7acafb80fd4c 100644 --- a/drivers/firmware/efivars.c +++ b/drivers/firmware/efivars.c @@ -103,6 +103,11 @@ MODULE_VERSION(EFIVARS_VERSION); */ #define GUID_LEN 36 +static bool efivars_pstore_disable = + IS_ENABLED(CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE); + +module_param_named(pstore_disable, efivars_pstore_disable, bool, 0644); + /* * The maximum size of VariableName + Data = 1024 * Therefore, it's reasonable to save that much @@ -165,6 +170,7 @@ efivar_create_sysfs_entry(struct efivars *efivars, static void efivar_update_sysfs_entries(struct work_struct *); static DECLARE_WORK(efivar_work, efivar_update_sysfs_entries); +static bool efivar_wq_enabled = true; /* Return the number of unicode characters in data */ static unsigned long @@ -1309,9 +1315,7 @@ static const struct inode_operations efivarfs_dir_inode_operations = { .create = efivarfs_create, }; -static struct pstore_info efi_pstore_info; - -#ifdef CONFIG_PSTORE +#ifdef CONFIG_EFI_VARS_PSTORE static int efi_pstore_open(struct pstore_info *psi) { @@ -1441,7 +1445,7 @@ static int efi_pstore_write(enum pstore_type_id type, spin_unlock_irqrestore(&efivars->lock, flags); - if (reason == KMSG_DUMP_OOPS) + if (reason == KMSG_DUMP_OOPS && efivar_wq_enabled) schedule_work(&efivar_work); *id = part; @@ -1514,38 +1518,6 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count, return 0; } -#else -static int efi_pstore_open(struct pstore_info *psi) -{ - return 0; -} - -static int efi_pstore_close(struct pstore_info *psi) -{ - return 0; -} - -static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type, int *count, - struct timespec *timespec, - char **buf, struct pstore_info *psi) -{ - return -1; -} - -static int efi_pstore_write(enum pstore_type_id type, - enum kmsg_dump_reason reason, u64 *id, - unsigned int part, int count, size_t size, - struct pstore_info *psi) -{ - return 0; -} - -static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count, - struct timespec time, struct pstore_info *psi) -{ - return 0; -} -#endif static struct pstore_info efi_pstore_info = { .owner = THIS_MODULE, @@ -1557,6 +1529,24 @@ static struct pstore_info efi_pstore_info = { .erase = efi_pstore_erase, }; +static void efivar_pstore_register(struct efivars *efivars) +{ + efivars->efi_pstore_info = efi_pstore_info; + efivars->efi_pstore_info.buf = kmalloc(4096, GFP_KERNEL); + if (efivars->efi_pstore_info.buf) { + efivars->efi_pstore_info.bufsize = 1024; + efivars->efi_pstore_info.data = efivars; + spin_lock_init(&efivars->efi_pstore_info.buf_lock); + pstore_register(&efivars->efi_pstore_info); + } +} +#else +static void efivar_pstore_register(struct efivars *efivars) +{ + return; +} +#endif + static ssize_t efivar_create(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) @@ -1716,6 +1706,31 @@ static bool variable_is_present(efi_char16_t *variable_name, efi_guid_t *vendor) return found; } +/* + * Returns the size of variable_name, in bytes, including the + * terminating NULL character, or variable_name_size if no NULL + * character is found among the first variable_name_size bytes. + */ +static unsigned long var_name_strnsize(efi_char16_t *variable_name, + unsigned long variable_name_size) +{ + unsigned long len; + efi_char16_t c; + + /* + * The variable name is, by definition, a NULL-terminated + * string, so make absolutely sure that variable_name_size is + * the value we expect it to be. If not, return the real size. + */ + for (len = 2; len <= variable_name_size; len += sizeof(c)) { + c = variable_name[(len / sizeof(c)) - 1]; + if (!c) + break; + } + + return min(len, variable_name_size); +} + static void efivar_update_sysfs_entries(struct work_struct *work) { struct efivars *efivars = &__efivars; @@ -1756,10 +1771,13 @@ static void efivar_update_sysfs_entries(struct work_struct *work) if (!found) { kfree(variable_name); break; - } else + } else { + variable_name_size = var_name_strnsize(variable_name, + variable_name_size); efivar_create_sysfs_entry(efivars, variable_name_size, variable_name, &vendor); + } } } @@ -1958,6 +1976,35 @@ void unregister_efivars(struct efivars *efivars) } EXPORT_SYMBOL_GPL(unregister_efivars); +/* + * Print a warning when duplicate EFI variables are encountered and + * disable the sysfs workqueue since the firmware is buggy. + */ +static void dup_variable_bug(efi_char16_t *s16, efi_guid_t *vendor_guid, + unsigned long len16) +{ + size_t i, len8 = len16 / sizeof(efi_char16_t); + char *s8; + + /* + * Disable the workqueue since the algorithm it uses for + * detecting new variables won't work with this buggy + * implementation of GetNextVariableName(). + */ + efivar_wq_enabled = false; + + s8 = kzalloc(len8, GFP_KERNEL); + if (!s8) + return; + + for (i = 0; i < len8; i++) + s8[i] = s16[i]; + + printk(KERN_WARNING "efivars: duplicate variable: %s-%pUl\n", + s8, vendor_guid); + kfree(s8); +} + int register_efivars(struct efivars *efivars, const struct efivar_operations *ops, struct kobject *parent_kobj) @@ -2006,6 +2053,24 @@ int register_efivars(struct efivars *efivars, &vendor_guid); switch (status) { case EFI_SUCCESS: + variable_name_size = var_name_strnsize(variable_name, + variable_name_size); + + /* + * Some firmware implementations return the + * same variable name on multiple calls to + * get_next_variable(). Terminate the loop + * immediately as there is no guarantee that + * we'll ever see a different variable name, + * and may end up looping here forever. + */ + if (variable_is_present(variable_name, &vendor_guid)) { + dup_variable_bug(variable_name, &vendor_guid, + variable_name_size); + status = EFI_NOT_FOUND; + break; + } + efivar_create_sysfs_entry(efivars, variable_name_size, variable_name, @@ -2025,15 +2090,8 @@ int register_efivars(struct efivars *efivars, if (error) unregister_efivars(efivars); - efivars->efi_pstore_info = efi_pstore_info; - - efivars->efi_pstore_info.buf = kmalloc(4096, GFP_KERNEL); - if (efivars->efi_pstore_info.buf) { - efivars->efi_pstore_info.bufsize = 1024; - efivars->efi_pstore_info.data = efivars; - spin_lock_init(&efivars->efi_pstore_info.buf_lock); - pstore_register(&efivars->efi_pstore_info); - } + if (!efivars_pstore_disable) + efivar_pstore_register(efivars); register_filesystem(&efivarfs_type); diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index a71a54a3e3f7..5150df6cba08 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -193,7 +193,7 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip) if (!np) return; - do { + for (;; index++) { ret = of_parse_phandle_with_args(np, "gpio-ranges", "#gpio-range-cells", index, &pinspec); if (ret) @@ -222,8 +222,7 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip) if (ret) break; - - } while (index++); + } } #else diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index c194f4e680ad..e2acfdbf7d3c 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1634,7 +1634,7 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo; unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo; unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo; - unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) >> 2 | pt->vsync_offset_pulse_width_lo >> 4; + unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4; unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf); /* ignore tiny modes */ @@ -1715,6 +1715,7 @@ set_size: } mode->type = DRM_MODE_TYPE_DRIVER; + mode->vrefresh = drm_mode_vrefresh(mode); drm_mode_set_name(mode); return mode; diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 36493ce71f9a..98cc14725ba9 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -38,11 +38,12 @@ /* position control register for hardware window 0, 2 ~ 4.*/ #define VIDOSD_A(win) (VIDOSD_BASE + 0x00 + (win) * 16) #define VIDOSD_B(win) (VIDOSD_BASE + 0x04 + (win) * 16) -/* size control register for hardware window 0. */ -#define VIDOSD_C_SIZE_W0 (VIDOSD_BASE + 0x08) -/* alpha control register for hardware window 1 ~ 4. */ -#define VIDOSD_C(win) (VIDOSD_BASE + 0x18 + (win) * 16) -/* size control register for hardware window 1 ~ 4. */ +/* + * size control register for hardware windows 0 and alpha control register + * for hardware windows 1 ~ 4 + */ +#define VIDOSD_C(win) (VIDOSD_BASE + 0x08 + (win) * 16) +/* size control register for hardware windows 1 ~ 2. */ #define VIDOSD_D(win) (VIDOSD_BASE + 0x0C + (win) * 16) #define VIDWx_BUF_START(win, buf) (VIDW_BUF_START(buf) + (win) * 8) @@ -50,9 +51,9 @@ #define VIDWx_BUF_SIZE(win, buf) (VIDW_BUF_SIZE(buf) + (win) * 4) /* color key control register for hardware window 1 ~ 4. */ -#define WKEYCON0_BASE(x) ((WKEYCON0 + 0x140) + (x * 8)) +#define WKEYCON0_BASE(x) ((WKEYCON0 + 0x140) + ((x - 1) * 8)) /* color key value register for hardware window 1 ~ 4. */ -#define WKEYCON1_BASE(x) ((WKEYCON1 + 0x140) + (x * 8)) +#define WKEYCON1_BASE(x) ((WKEYCON1 + 0x140) + ((x - 1) * 8)) /* FIMD has totally five hardware windows. */ #define WINDOWS_NR 5 @@ -109,9 +110,9 @@ struct fimd_context { #ifdef CONFIG_OF static const struct of_device_id fimd_driver_dt_match[] = { - { .compatible = "samsung,exynos4-fimd", + { .compatible = "samsung,exynos4210-fimd", .data = &exynos4_fimd_driver_data }, - { .compatible = "samsung,exynos5-fimd", + { .compatible = "samsung,exynos5250-fimd", .data = &exynos5_fimd_driver_data }, {}, }; @@ -581,7 +582,7 @@ static void fimd_win_commit(struct device *dev, int zpos) if (win != 3 && win != 4) { u32 offset = VIDOSD_D(win); if (win == 0) - offset = VIDOSD_C_SIZE_W0; + offset = VIDOSD_C(win); val = win_data->ovl_width * win_data->ovl_height; writel(val, ctx->regs + offset); diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index 3b0da0378acf..47a493c8a71f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -48,8 +48,14 @@ /* registers for base address */ #define G2D_SRC_BASE_ADDR 0x0304 +#define G2D_SRC_COLOR_MODE 0x030C +#define G2D_SRC_LEFT_TOP 0x0310 +#define G2D_SRC_RIGHT_BOTTOM 0x0314 #define G2D_SRC_PLANE2_BASE_ADDR 0x0318 #define G2D_DST_BASE_ADDR 0x0404 +#define G2D_DST_COLOR_MODE 0x040C +#define G2D_DST_LEFT_TOP 0x0410 +#define G2D_DST_RIGHT_BOTTOM 0x0414 #define G2D_DST_PLANE2_BASE_ADDR 0x0418 #define G2D_PAT_BASE_ADDR 0x0500 #define G2D_MSK_BASE_ADDR 0x0520 @@ -82,7 +88,7 @@ #define G2D_DMA_LIST_DONE_COUNT_OFFSET 17 /* G2D_DMA_HOLD_CMD */ -#define G2D_USET_HOLD (1 << 2) +#define G2D_USER_HOLD (1 << 2) #define G2D_LIST_HOLD (1 << 1) #define G2D_BITBLT_HOLD (1 << 0) @@ -91,13 +97,27 @@ #define G2D_START_NHOLT (1 << 1) #define G2D_START_BITBLT (1 << 0) +/* buffer color format */ +#define G2D_FMT_XRGB8888 0 +#define G2D_FMT_ARGB8888 1 +#define G2D_FMT_RGB565 2 +#define G2D_FMT_XRGB1555 3 +#define G2D_FMT_ARGB1555 4 +#define G2D_FMT_XRGB4444 5 +#define G2D_FMT_ARGB4444 6 +#define G2D_FMT_PACKED_RGB888 7 +#define G2D_FMT_A8 11 +#define G2D_FMT_L8 12 + +/* buffer valid length */ +#define G2D_LEN_MIN 1 +#define G2D_LEN_MAX 8000 + #define G2D_CMDLIST_SIZE (PAGE_SIZE / 4) #define G2D_CMDLIST_NUM 64 #define G2D_CMDLIST_POOL_SIZE (G2D_CMDLIST_SIZE * G2D_CMDLIST_NUM) #define G2D_CMDLIST_DATA_NUM (G2D_CMDLIST_SIZE / sizeof(u32) - 2) -#define MAX_BUF_ADDR_NR 6 - /* maximum buffer pool size of userptr is 64MB as default */ #define MAX_POOL (64 * 1024 * 1024) @@ -106,6 +126,17 @@ enum { BUF_TYPE_USERPTR, }; +enum g2d_reg_type { + REG_TYPE_NONE = -1, + REG_TYPE_SRC, + REG_TYPE_SRC_PLANE2, + REG_TYPE_DST, + REG_TYPE_DST_PLANE2, + REG_TYPE_PAT, + REG_TYPE_MSK, + MAX_REG_TYPE_NR +}; + /* cmdlist data structure */ struct g2d_cmdlist { u32 head; @@ -113,6 +144,42 @@ struct g2d_cmdlist { u32 last; /* last data offset */ }; +/* + * A structure of buffer description + * + * @format: color format + * @left_x: the x coordinates of left top corner + * @top_y: the y coordinates of left top corner + * @right_x: the x coordinates of right bottom corner + * @bottom_y: the y coordinates of right bottom corner + * + */ +struct g2d_buf_desc { + unsigned int format; + unsigned int left_x; + unsigned int top_y; + unsigned int right_x; + unsigned int bottom_y; +}; + +/* + * A structure of buffer information + * + * @map_nr: manages the number of mapped buffers + * @reg_types: stores regitster type in the order of requested command + * @handles: stores buffer handle in its reg_type position + * @types: stores buffer type in its reg_type position + * @descs: stores buffer description in its reg_type position + * + */ +struct g2d_buf_info { + unsigned int map_nr; + enum g2d_reg_type reg_types[MAX_REG_TYPE_NR]; + unsigned long handles[MAX_REG_TYPE_NR]; + unsigned int types[MAX_REG_TYPE_NR]; + struct g2d_buf_desc descs[MAX_REG_TYPE_NR]; +}; + struct drm_exynos_pending_g2d_event { struct drm_pending_event base; struct drm_exynos_g2d_event event; @@ -131,14 +198,11 @@ struct g2d_cmdlist_userptr { bool in_pool; bool out_of_list; }; - struct g2d_cmdlist_node { struct list_head list; struct g2d_cmdlist *cmdlist; - unsigned int map_nr; - unsigned long handles[MAX_BUF_ADDR_NR]; - unsigned int obj_type[MAX_BUF_ADDR_NR]; dma_addr_t dma_addr; + struct g2d_buf_info buf_info; struct drm_exynos_pending_g2d_event *event; }; @@ -188,6 +252,7 @@ static int g2d_init_cmdlist(struct g2d_data *g2d) struct exynos_drm_subdrv *subdrv = &g2d->subdrv; int nr; int ret; + struct g2d_buf_info *buf_info; init_dma_attrs(&g2d->cmdlist_dma_attrs); dma_set_attr(DMA_ATTR_WRITE_COMBINE, &g2d->cmdlist_dma_attrs); @@ -209,11 +274,17 @@ static int g2d_init_cmdlist(struct g2d_data *g2d) } for (nr = 0; nr < G2D_CMDLIST_NUM; nr++) { + unsigned int i; + node[nr].cmdlist = g2d->cmdlist_pool_virt + nr * G2D_CMDLIST_SIZE; node[nr].dma_addr = g2d->cmdlist_pool + nr * G2D_CMDLIST_SIZE; + buf_info = &node[nr].buf_info; + for (i = 0; i < MAX_REG_TYPE_NR; i++) + buf_info->reg_types[i] = REG_TYPE_NONE; + list_add_tail(&node[nr].list, &g2d->free_cmdlist); } @@ -450,7 +521,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, DMA_BIDIRECTIONAL); if (ret < 0) { DRM_ERROR("failed to map sgt with dma region.\n"); - goto err_free_sgt; + goto err_sg_free_table; } g2d_userptr->dma_addr = sgt->sgl[0].dma_address; @@ -467,8 +538,10 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, return &g2d_userptr->dma_addr; -err_free_sgt: +err_sg_free_table: sg_free_table(sgt); + +err_free_sgt: kfree(sgt); sgt = NULL; @@ -506,36 +579,172 @@ static void g2d_userptr_free_all(struct drm_device *drm_dev, g2d->current_pool = 0; } +static enum g2d_reg_type g2d_get_reg_type(int reg_offset) +{ + enum g2d_reg_type reg_type; + + switch (reg_offset) { + case G2D_SRC_BASE_ADDR: + case G2D_SRC_COLOR_MODE: + case G2D_SRC_LEFT_TOP: + case G2D_SRC_RIGHT_BOTTOM: + reg_type = REG_TYPE_SRC; + break; + case G2D_SRC_PLANE2_BASE_ADDR: + reg_type = REG_TYPE_SRC_PLANE2; + break; + case G2D_DST_BASE_ADDR: + case G2D_DST_COLOR_MODE: + case G2D_DST_LEFT_TOP: + case G2D_DST_RIGHT_BOTTOM: + reg_type = REG_TYPE_DST; + break; + case G2D_DST_PLANE2_BASE_ADDR: + reg_type = REG_TYPE_DST_PLANE2; + break; + case G2D_PAT_BASE_ADDR: + reg_type = REG_TYPE_PAT; + break; + case G2D_MSK_BASE_ADDR: + reg_type = REG_TYPE_MSK; + break; + default: + reg_type = REG_TYPE_NONE; + DRM_ERROR("Unknown register offset![%d]\n", reg_offset); + break; + }; + + return reg_type; +} + +static unsigned long g2d_get_buf_bpp(unsigned int format) +{ + unsigned long bpp; + + switch (format) { + case G2D_FMT_XRGB8888: + case G2D_FMT_ARGB8888: + bpp = 4; + break; + case G2D_FMT_RGB565: + case G2D_FMT_XRGB1555: + case G2D_FMT_ARGB1555: + case G2D_FMT_XRGB4444: + case G2D_FMT_ARGB4444: + bpp = 2; + break; + case G2D_FMT_PACKED_RGB888: + bpp = 3; + break; + default: + bpp = 1; + break; + } + + return bpp; +} + +static bool g2d_check_buf_desc_is_valid(struct g2d_buf_desc *buf_desc, + enum g2d_reg_type reg_type, + unsigned long size) +{ + unsigned int width, height; + unsigned long area; + + /* + * check source and destination buffers only. + * so the others are always valid. + */ + if (reg_type != REG_TYPE_SRC && reg_type != REG_TYPE_DST) + return true; + + width = buf_desc->right_x - buf_desc->left_x; + if (width < G2D_LEN_MIN || width > G2D_LEN_MAX) { + DRM_ERROR("width[%u] is out of range!\n", width); + return false; + } + + height = buf_desc->bottom_y - buf_desc->top_y; + if (height < G2D_LEN_MIN || height > G2D_LEN_MAX) { + DRM_ERROR("height[%u] is out of range!\n", height); + return false; + } + + area = (unsigned long)width * (unsigned long)height * + g2d_get_buf_bpp(buf_desc->format); + if (area > size) { + DRM_ERROR("area[%lu] is out of range[%lu]!\n", area, size); + return false; + } + + return true; +} + static int g2d_map_cmdlist_gem(struct g2d_data *g2d, struct g2d_cmdlist_node *node, struct drm_device *drm_dev, struct drm_file *file) { struct g2d_cmdlist *cmdlist = node->cmdlist; + struct g2d_buf_info *buf_info = &node->buf_info; int offset; + int ret; int i; - for (i = 0; i < node->map_nr; i++) { + for (i = 0; i < buf_info->map_nr; i++) { + struct g2d_buf_desc *buf_desc; + enum g2d_reg_type reg_type; + int reg_pos; unsigned long handle; dma_addr_t *addr; - offset = cmdlist->last - (i * 2 + 1); - handle = cmdlist->data[offset]; + reg_pos = cmdlist->last - 2 * (i + 1); + + offset = cmdlist->data[reg_pos]; + handle = cmdlist->data[reg_pos + 1]; + + reg_type = g2d_get_reg_type(offset); + if (reg_type == REG_TYPE_NONE) { + ret = -EFAULT; + goto err; + } + + buf_desc = &buf_info->descs[reg_type]; + + if (buf_info->types[reg_type] == BUF_TYPE_GEM) { + unsigned long size; + + size = exynos_drm_gem_get_size(drm_dev, handle, file); + if (!size) { + ret = -EFAULT; + goto err; + } + + if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type, + size)) { + ret = -EFAULT; + goto err; + } - if (node->obj_type[i] == BUF_TYPE_GEM) { addr = exynos_drm_gem_get_dma_addr(drm_dev, handle, file); if (IS_ERR(addr)) { - node->map_nr = i; - return -EFAULT; + ret = -EFAULT; + goto err; } } else { struct drm_exynos_g2d_userptr g2d_userptr; if (copy_from_user(&g2d_userptr, (void __user *)handle, sizeof(struct drm_exynos_g2d_userptr))) { - node->map_nr = i; - return -EFAULT; + ret = -EFAULT; + goto err; + } + + if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type, + g2d_userptr.size)) { + ret = -EFAULT; + goto err; } addr = g2d_userptr_get_dma_addr(drm_dev, @@ -544,16 +753,21 @@ static int g2d_map_cmdlist_gem(struct g2d_data *g2d, file, &handle); if (IS_ERR(addr)) { - node->map_nr = i; - return -EFAULT; + ret = -EFAULT; + goto err; } } - cmdlist->data[offset] = *addr; - node->handles[i] = handle; + cmdlist->data[reg_pos + 1] = *addr; + buf_info->reg_types[i] = reg_type; + buf_info->handles[reg_type] = handle; } return 0; + +err: + buf_info->map_nr = i; + return ret; } static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d, @@ -561,22 +775,33 @@ static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d, struct drm_file *filp) { struct exynos_drm_subdrv *subdrv = &g2d->subdrv; + struct g2d_buf_info *buf_info = &node->buf_info; int i; - for (i = 0; i < node->map_nr; i++) { - unsigned long handle = node->handles[i]; + for (i = 0; i < buf_info->map_nr; i++) { + struct g2d_buf_desc *buf_desc; + enum g2d_reg_type reg_type; + unsigned long handle; + + reg_type = buf_info->reg_types[i]; + + buf_desc = &buf_info->descs[reg_type]; + handle = buf_info->handles[reg_type]; - if (node->obj_type[i] == BUF_TYPE_GEM) + if (buf_info->types[reg_type] == BUF_TYPE_GEM) exynos_drm_gem_put_dma_addr(subdrv->drm_dev, handle, filp); else g2d_userptr_put_dma_addr(subdrv->drm_dev, handle, false); - node->handles[i] = 0; + buf_info->reg_types[i] = REG_TYPE_NONE; + buf_info->handles[reg_type] = 0; + buf_info->types[reg_type] = 0; + memset(buf_desc, 0x00, sizeof(*buf_desc)); } - node->map_nr = 0; + buf_info->map_nr = 0; } static void g2d_dma_start(struct g2d_data *g2d, @@ -589,10 +814,6 @@ static void g2d_dma_start(struct g2d_data *g2d, pm_runtime_get_sync(g2d->dev); clk_enable(g2d->gate_clk); - /* interrupt enable */ - writel_relaxed(G2D_INTEN_ACF | G2D_INTEN_UCF | G2D_INTEN_GCF, - g2d->regs + G2D_INTEN); - writel_relaxed(node->dma_addr, g2d->regs + G2D_DMA_SFR_BASE_ADDR); writel_relaxed(G2D_DMA_START, g2d->regs + G2D_DMA_COMMAND); } @@ -643,7 +864,6 @@ static void g2d_runqueue_worker(struct work_struct *work) struct g2d_data *g2d = container_of(work, struct g2d_data, runqueue_work); - mutex_lock(&g2d->runqueue_mutex); clk_disable(g2d->gate_clk); pm_runtime_put_sync(g2d->dev); @@ -724,20 +944,14 @@ static int g2d_check_reg_offset(struct device *dev, int i; for (i = 0; i < nr; i++) { - index = cmdlist->last - 2 * (i + 1); + struct g2d_buf_info *buf_info = &node->buf_info; + struct g2d_buf_desc *buf_desc; + enum g2d_reg_type reg_type; + unsigned long value; - if (for_addr) { - /* check userptr buffer type. */ - reg_offset = (cmdlist->data[index] & - ~0x7fffffff) >> 31; - if (reg_offset) { - node->obj_type[i] = BUF_TYPE_USERPTR; - cmdlist->data[index] &= ~G2D_BUF_USERPTR; - } - } + index = cmdlist->last - 2 * (i + 1); reg_offset = cmdlist->data[index] & ~0xfffff000; - if (reg_offset < G2D_VALID_START || reg_offset > G2D_VALID_END) goto err; if (reg_offset % 4) @@ -753,8 +967,60 @@ static int g2d_check_reg_offset(struct device *dev, if (!for_addr) goto err; - if (node->obj_type[i] != BUF_TYPE_USERPTR) - node->obj_type[i] = BUF_TYPE_GEM; + reg_type = g2d_get_reg_type(reg_offset); + if (reg_type == REG_TYPE_NONE) + goto err; + + /* check userptr buffer type. */ + if ((cmdlist->data[index] & ~0x7fffffff) >> 31) { + buf_info->types[reg_type] = BUF_TYPE_USERPTR; + cmdlist->data[index] &= ~G2D_BUF_USERPTR; + } else + buf_info->types[reg_type] = BUF_TYPE_GEM; + break; + case G2D_SRC_COLOR_MODE: + case G2D_DST_COLOR_MODE: + if (for_addr) + goto err; + + reg_type = g2d_get_reg_type(reg_offset); + if (reg_type == REG_TYPE_NONE) + goto err; + + buf_desc = &buf_info->descs[reg_type]; + value = cmdlist->data[index + 1]; + + buf_desc->format = value & 0xf; + break; + case G2D_SRC_LEFT_TOP: + case G2D_DST_LEFT_TOP: + if (for_addr) + goto err; + + reg_type = g2d_get_reg_type(reg_offset); + if (reg_type == REG_TYPE_NONE) + goto err; + + buf_desc = &buf_info->descs[reg_type]; + value = cmdlist->data[index + 1]; + + buf_desc->left_x = value & 0x1fff; + buf_desc->top_y = (value & 0x1fff0000) >> 16; + break; + case G2D_SRC_RIGHT_BOTTOM: + case G2D_DST_RIGHT_BOTTOM: + if (for_addr) + goto err; + + reg_type = g2d_get_reg_type(reg_offset); + if (reg_type == REG_TYPE_NONE) + goto err; + + buf_desc = &buf_info->descs[reg_type]; + value = cmdlist->data[index + 1]; + + buf_desc->right_x = value & 0x1fff; + buf_desc->bottom_y = (value & 0x1fff0000) >> 16; break; default: if (for_addr) @@ -860,9 +1126,23 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data, cmdlist->data[cmdlist->last++] = G2D_SRC_BASE_ADDR; cmdlist->data[cmdlist->last++] = 0; + /* + * 'LIST_HOLD' command should be set to the DMA_HOLD_CMD_REG + * and GCF bit should be set to INTEN register if user wants + * G2D interrupt event once current command list execution is + * finished. + * Otherwise only ACF bit should be set to INTEN register so + * that one interrupt is occured after all command lists + * have been completed. + */ if (node->event) { + cmdlist->data[cmdlist->last++] = G2D_INTEN; + cmdlist->data[cmdlist->last++] = G2D_INTEN_ACF | G2D_INTEN_GCF; cmdlist->data[cmdlist->last++] = G2D_DMA_HOLD_CMD; cmdlist->data[cmdlist->last++] = G2D_LIST_HOLD; + } else { + cmdlist->data[cmdlist->last++] = G2D_INTEN; + cmdlist->data[cmdlist->last++] = G2D_INTEN_ACF; } /* Check size of cmdlist: last 2 is about G2D_BITBLT_START */ @@ -887,7 +1167,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data, if (ret < 0) goto err_free_event; - node->map_nr = req->cmd_buf_nr; + node->buf_info.map_nr = req->cmd_buf_nr; if (req->cmd_buf_nr) { struct drm_exynos_g2d_cmd *cmd_buf; diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 67e17ce112b6..0e6fe000578c 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -164,6 +164,27 @@ out: exynos_gem_obj = NULL; } +unsigned long exynos_drm_gem_get_size(struct drm_device *dev, + unsigned int gem_handle, + struct drm_file *file_priv) +{ + struct exynos_drm_gem_obj *exynos_gem_obj; + struct drm_gem_object *obj; + + obj = drm_gem_object_lookup(dev, file_priv, gem_handle); + if (!obj) { + DRM_ERROR("failed to lookup gem object.\n"); + return 0; + } + + exynos_gem_obj = to_exynos_gem_obj(obj); + + drm_gem_object_unreference_unlocked(obj); + + return exynos_gem_obj->buffer->size; +} + + struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev, unsigned long size) { diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index 35ebac47dc2b..468766bee450 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -130,6 +130,11 @@ int exynos_drm_gem_userptr_ioctl(struct drm_device *dev, void *data, int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +/* get buffer size to gem handle. */ +unsigned long exynos_drm_gem_get_size(struct drm_device *dev, + unsigned int gem_handle, + struct drm_file *file_priv); + /* initialize gem object. */ int exynos_drm_gem_init_object(struct drm_gem_object *obj); diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index 13ccbd4bcfaa..9504b0cd825a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -117,13 +117,12 @@ static struct edid *vidi_get_edid(struct device *dev, } edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH; - edid = kzalloc(edid_len, GFP_KERNEL); + edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL); if (!edid) { DRM_DEBUG_KMS("failed to allocate edid\n"); return ERR_PTR(-ENOMEM); } - memcpy(edid, ctx->raw_edid, edid_len); return edid; } @@ -563,12 +562,11 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data, return -EINVAL; } edid_len = (1 + raw_edid->extensions) * EDID_LENGTH; - ctx->raw_edid = kzalloc(edid_len, GFP_KERNEL); + ctx->raw_edid = kmemdup(raw_edid, edid_len, GFP_KERNEL); if (!ctx->raw_edid) { DRM_DEBUG_KMS("failed to allocate raw_edid.\n"); return -ENOMEM; } - memcpy(ctx->raw_edid, raw_edid, edid_len); } else { /* * with connection = 0, free raw_edid diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index e919aba29b3d..2f4f72f07047 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -818,7 +818,7 @@ static void mixer_win_disable(void *ctx, int win) mixer_ctx->win_data[win].enabled = false; } -int mixer_check_timing(void *ctx, struct fb_videomode *timing) +static int mixer_check_timing(void *ctx, struct fb_videomode *timing) { struct mixer_context *mixer_ctx = ctx; u32 w, h; diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index aae31489c893..7299ea45dd03 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -103,7 +103,7 @@ static const char *cache_level_str(int type) static void describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) { - seq_printf(m, "%p: %s%s %8zdKiB %02x %02x %d %d %d%s%s%s", + seq_printf(m, "%pK: %s%s %8zdKiB %02x %02x %d %d %d%s%s%s", &obj->base, get_pin_flag(obj), get_tiling_flag(obj), diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 0a8eceb75902..e9b57893db2b 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -125,6 +125,11 @@ MODULE_PARM_DESC(preliminary_hw_support, "Enable Haswell and ValleyView Support. " "(default: false)"); +int i915_disable_power_well __read_mostly = 0; +module_param_named(disable_power_well, i915_disable_power_well, int, 0600); +MODULE_PARM_DESC(disable_power_well, + "Disable the power well when possible (default: false)"); + static struct drm_driver driver; extern int intel_agp_enabled; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e95337c97459..01769e2a9953 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1398,6 +1398,7 @@ extern int i915_enable_fbc __read_mostly; extern bool i915_enable_hangcheck __read_mostly; extern int i915_enable_ppgtt __read_mostly; extern unsigned int i915_preliminary_hw_support __read_mostly; +extern int i915_disable_power_well __read_mostly; extern int i915_suspend(struct drm_device *dev, pm_message_t state); extern int i915_resume(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 2f2daebd0eef..3b11ab0fbc96 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -732,6 +732,8 @@ validate_exec_list(struct drm_i915_gem_exec_object2 *exec, int count) { int i; + int relocs_total = 0; + int relocs_max = INT_MAX / sizeof(struct drm_i915_gem_relocation_entry); for (i = 0; i < count; i++) { char __user *ptr = (char __user *)(uintptr_t)exec[i].relocs_ptr; @@ -740,10 +742,13 @@ validate_exec_list(struct drm_i915_gem_exec_object2 *exec, if (exec[i].flags & __EXEC_OBJECT_UNKNOWN_FLAGS) return -EINVAL; - /* First check for malicious input causing overflow */ - if (exec[i].relocation_count > - INT_MAX / sizeof(struct drm_i915_gem_relocation_entry)) + /* First check for malicious input causing overflow in + * the worst case where we need to allocate the entire + * relocation tree as a single array. + */ + if (exec[i].relocation_count > relocs_max - relocs_total) return -EINVAL; + relocs_total += exec[i].relocation_count; length = exec[i].relocation_count * sizeof(struct drm_i915_gem_relocation_entry); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 287b42c9d1a8..b20d50192fcc 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5771,6 +5771,11 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc, num_connectors++; } + if (is_cpu_edp) + intel_crtc->cpu_transcoder = TRANSCODER_EDP; + else + intel_crtc->cpu_transcoder = pipe; + /* We are not sure yet this won't happen. */ WARN(!HAS_PCH_LPT(dev), "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev)); @@ -5837,11 +5842,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, int pipe = intel_crtc->pipe; int ret; - if (IS_HASWELL(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) - intel_crtc->cpu_transcoder = TRANSCODER_EDP; - else - intel_crtc->cpu_transcoder = pipe; - drm_vblank_pre_modeset(dev, pipe); ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode, diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 6f728e5ee793..d7d4afe01341 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -820,6 +820,7 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode, struct intel_link_m_n m_n; int pipe = intel_crtc->pipe; enum transcoder cpu_transcoder = intel_crtc->cpu_transcoder; + int target_clock; /* * Find the lane count in the intel_encoder private @@ -835,13 +836,22 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode, } } + target_clock = mode->clock; + for_each_encoder_on_crtc(dev, crtc, intel_encoder) { + if (intel_encoder->type == INTEL_OUTPUT_EDP) { + target_clock = intel_edp_target_clock(intel_encoder, + mode); + break; + } + } + /* * Compute the GMCH and Link ratios. The '3' here is * the number of bytes_per_pixel post-LUT, which we always * set up for 8-bits of R/G/B, or 3 bytes total. */ intel_link_compute_m_n(intel_crtc->bpp, lane_count, - mode->clock, adjusted_mode->clock, &m_n); + target_clock, adjusted_mode->clock, &m_n); if (IS_HASWELL(dev)) { I915_WRITE(PIPE_DATA_M1(cpu_transcoder), @@ -1930,7 +1940,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) for (i = 0; i < intel_dp->lane_count; i++) if ((intel_dp->train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0) break; - if (i == intel_dp->lane_count && voltage_tries == 5) { + if (i == intel_dp->lane_count) { ++loop_tries; if (loop_tries == 5) { DRM_DEBUG_KMS("too many full retries, give up\n"); diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c index acf8aec9ada7..ef4744e1bf0b 100644 --- a/drivers/gpu/drm/i915/intel_i2c.c +++ b/drivers/gpu/drm/i915/intel_i2c.c @@ -203,7 +203,13 @@ intel_gpio_setup(struct intel_gmbus *bus, u32 pin) algo->data = bus; } -#define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 4) +/* + * gmbus on gen4 seems to be able to generate legacy interrupts even when in MSI + * mode. This results in spurious interrupt warnings if the legacy irq no. is + * shared with another device. The kernel then disables that interrupt source + * and so prevents the other device from working properly. + */ +#define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5) static int gmbus_wait_hw_status(struct drm_i915_private *dev_priv, u32 gmbus2_status, @@ -214,6 +220,9 @@ gmbus_wait_hw_status(struct drm_i915_private *dev_priv, u32 gmbus2 = 0; DEFINE_WAIT(wait); + if (!HAS_GMBUS_IRQ(dev_priv->dev)) + gmbus4_irq_en = 0; + /* Important: The hw handles only the first bit, so set only one! Since * we also need to check for NAKs besides the hw ready/idle signal, we * need to wake up periodically and check that ourselves. */ diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index a3730e0289e5..bee8cb6108a7 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -321,9 +321,6 @@ void intel_panel_enable_backlight(struct drm_device *dev, if (dev_priv->backlight_level == 0) dev_priv->backlight_level = intel_panel_get_max_backlight(dev); - dev_priv->backlight_enabled = true; - intel_panel_actually_set_backlight(dev, dev_priv->backlight_level); - if (INTEL_INFO(dev)->gen >= 4) { uint32_t reg, tmp; @@ -359,12 +356,12 @@ void intel_panel_enable_backlight(struct drm_device *dev, } set_level: - /* Check the current backlight level and try to set again if it's zero. - * On some machines, BLC_PWM_CPU_CTL is cleared to zero automatically - * when BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1 are written. + /* Call below after setting BLC_PWM_CPU_CTL2 and BLC_PWM_PCH_CTL1. + * BLC_PWM_CPU_CTL may be cleared to zero automatically when these + * registers are set. */ - if (!intel_panel_get_backlight(dev)) - intel_panel_actually_set_backlight(dev, dev_priv->backlight_level); + dev_priv->backlight_enabled = true; + intel_panel_actually_set_backlight(dev, dev_priv->backlight_level); } static void intel_panel_init_backlight(struct drm_device *dev) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a1794c6df1bf..adca00783e61 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4079,6 +4079,9 @@ void intel_set_power_well(struct drm_device *dev, bool enable) if (!IS_HASWELL(dev)) return; + if (!i915_disable_power_well && !enable) + return; + tmp = I915_READ(HSW_PWR_WELL_DRIVER); is_enabled = tmp & HSW_PWR_WELL_STATE; enable_requested = tmp & HSW_PWR_WELL_ENABLE; diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index a274b9906ef8..fe22bb780e1d 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -382,19 +382,19 @@ static int mga_g200eh_set_plls(struct mga_device *mdev, long clock) m = n = p = 0; vcomax = 800000; vcomin = 400000; - pllreffreq = 3333; + pllreffreq = 33333; delta = 0xffffffff; permitteddelta = clock * 5 / 1000; - for (testp = 16; testp > 0; testp--) { + for (testp = 16; testp > 0; testp >>= 1) { if (clock * testp > vcomax) continue; if (clock * testp < vcomin) continue; for (testm = 1; testm < 33; testm++) { - for (testn = 1; testn < 257; testn++) { + for (testn = 17; testn < 257; testn++) { computed = (pllreffreq * testn) / (testm * testp); if (computed > clock) @@ -404,11 +404,11 @@ static int mga_g200eh_set_plls(struct mga_device *mdev, long clock) if (tmpdelta < delta) { delta = tmpdelta; n = testn - 1; - m = (testm - 1) | ((n >> 1) & 0x80); + m = (testm - 1); p = testp - 1; } if ((clock * testp) >= 600000) - p |= 80; + p |= 0x80; } } } diff --git a/drivers/gpu/drm/nouveau/core/core/object.c b/drivers/gpu/drm/nouveau/core/core/object.c index 0daab62ea14c..3b2e7b6304d3 100644 --- a/drivers/gpu/drm/nouveau/core/core/object.c +++ b/drivers/gpu/drm/nouveau/core/core/object.c @@ -278,7 +278,6 @@ nouveau_object_del(struct nouveau_object *client, u32 _parent, u32 _handle) struct nouveau_object *parent = NULL; struct nouveau_object *namedb = NULL; struct nouveau_handle *handle = NULL; - int ret = -EINVAL; parent = nouveau_handle_ref(client, _parent); if (!parent) @@ -295,7 +294,7 @@ nouveau_object_del(struct nouveau_object *client, u32 _parent, u32 _handle) } nouveau_object_ref(NULL, &parent); - return ret; + return handle ? 0 : -EINVAL; } int diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/therm.h b/drivers/gpu/drm/nouveau/core/include/subdev/therm.h index 6b17b614629f..0b20fc0d19c1 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/therm.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/therm.h @@ -4,7 +4,7 @@ #include <core/device.h> #include <core/subdev.h> -enum nouveau_therm_mode { +enum nouveau_therm_fan_mode { NOUVEAU_THERM_CTRL_NONE = 0, NOUVEAU_THERM_CTRL_MANUAL = 1, NOUVEAU_THERM_CTRL_AUTO = 2, diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/base.c b/drivers/gpu/drm/nouveau/core/subdev/therm/base.c index f794dc89a3b2..a00a5a76e2d6 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/base.c @@ -134,7 +134,7 @@ nouveau_therm_alarm(struct nouveau_alarm *alarm) } int -nouveau_therm_mode(struct nouveau_therm *therm, int mode) +nouveau_therm_fan_mode(struct nouveau_therm *therm, int mode) { struct nouveau_therm_priv *priv = (void *)therm; struct nouveau_device *device = nv_device(therm); @@ -149,10 +149,15 @@ nouveau_therm_mode(struct nouveau_therm *therm, int mode) (mode != NOUVEAU_THERM_CTRL_NONE && device->card_type >= NV_C0)) return -EINVAL; + /* do not allow automatic fan management if the thermal sensor is + * not available */ + if (priv->mode == 2 && therm->temp_get(therm) < 0) + return -EINVAL; + if (priv->mode == mode) return 0; - nv_info(therm, "Thermal management: %s\n", name[mode]); + nv_info(therm, "fan management: %s\n", name[mode]); nouveau_therm_update(therm, mode); return 0; } @@ -213,7 +218,7 @@ nouveau_therm_attr_set(struct nouveau_therm *therm, priv->fan->bios.max_duty = value; return 0; case NOUVEAU_THERM_ATTR_FAN_MODE: - return nouveau_therm_mode(therm, value); + return nouveau_therm_fan_mode(therm, value); case NOUVEAU_THERM_ATTR_THRS_FAN_BOOST: priv->bios_sensor.thrs_fan_boost.temp = value; priv->sensor.program_alarms(therm); @@ -263,7 +268,7 @@ _nouveau_therm_init(struct nouveau_object *object) return ret; if (priv->suspend >= 0) - nouveau_therm_mode(therm, priv->mode); + nouveau_therm_fan_mode(therm, priv->mode); priv->sensor.program_alarms(therm); return 0; } @@ -313,11 +318,12 @@ nouveau_therm_create_(struct nouveau_object *parent, int nouveau_therm_preinit(struct nouveau_therm *therm) { - nouveau_therm_ic_ctor(therm); nouveau_therm_sensor_ctor(therm); + nouveau_therm_ic_ctor(therm); nouveau_therm_fan_ctor(therm); - nouveau_therm_mode(therm, NOUVEAU_THERM_CTRL_NONE); + nouveau_therm_fan_mode(therm, NOUVEAU_THERM_CTRL_NONE); + nouveau_therm_sensor_preinit(therm); return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c index e24090bac195..8b3adec5fbb1 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c @@ -32,6 +32,7 @@ probe_monitoring_device(struct nouveau_i2c_port *i2c, struct i2c_board_info *info) { struct nouveau_therm_priv *priv = (void *)nouveau_therm(i2c); + struct nvbios_therm_sensor *sensor = &priv->bios_sensor; struct i2c_client *client; request_module("%s%s", I2C_MODULE_PREFIX, info->type); @@ -46,8 +47,9 @@ probe_monitoring_device(struct nouveau_i2c_port *i2c, } nv_info(priv, - "Found an %s at address 0x%x (controlled by lm_sensors)\n", - info->type, info->addr); + "Found an %s at address 0x%x (controlled by lm_sensors, " + "temp offset %+i C)\n", + info->type, info->addr, sensor->offset_constant); priv->ic = client; return true; diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c index 0f5363edb964..a70d1b7e397b 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c @@ -29,54 +29,83 @@ struct nv40_therm_priv { struct nouveau_therm_priv base; }; +enum nv40_sensor_style { INVALID_STYLE = -1, OLD_STYLE = 0, NEW_STYLE = 1 }; + +static enum nv40_sensor_style +nv40_sensor_style(struct nouveau_therm *therm) +{ + struct nouveau_device *device = nv_device(therm); + + switch (device->chipset) { + case 0x43: + case 0x44: + case 0x4a: + case 0x47: + return OLD_STYLE; + + case 0x46: + case 0x49: + case 0x4b: + case 0x4e: + case 0x4c: + case 0x67: + case 0x68: + case 0x63: + return NEW_STYLE; + default: + return INVALID_STYLE; + } +} + static int nv40_sensor_setup(struct nouveau_therm *therm) { - struct nouveau_device *device = nv_device(therm); + enum nv40_sensor_style style = nv40_sensor_style(therm); /* enable ADC readout and disable the ALARM threshold */ - if (device->chipset >= 0x46) { + if (style == NEW_STYLE) { nv_mask(therm, 0x15b8, 0x80000000, 0); nv_wr32(therm, 0x15b0, 0x80003fff); - mdelay(10); /* wait for the temperature to stabilize */ + mdelay(20); /* wait for the temperature to stabilize */ return nv_rd32(therm, 0x15b4) & 0x3fff; - } else { + } else if (style == OLD_STYLE) { nv_wr32(therm, 0x15b0, 0xff); + mdelay(20); /* wait for the temperature to stabilize */ return nv_rd32(therm, 0x15b4) & 0xff; - } + } else + return -ENODEV; } static int nv40_temp_get(struct nouveau_therm *therm) { struct nouveau_therm_priv *priv = (void *)therm; - struct nouveau_device *device = nv_device(therm); struct nvbios_therm_sensor *sensor = &priv->bios_sensor; + enum nv40_sensor_style style = nv40_sensor_style(therm); int core_temp; - if (device->chipset >= 0x46) { + if (style == NEW_STYLE) { nv_wr32(therm, 0x15b0, 0x80003fff); core_temp = nv_rd32(therm, 0x15b4) & 0x3fff; - } else { + } else if (style == OLD_STYLE) { nv_wr32(therm, 0x15b0, 0xff); core_temp = nv_rd32(therm, 0x15b4) & 0xff; - } - - /* Setup the sensor if the temperature is 0 */ - if (core_temp == 0) - core_temp = nv40_sensor_setup(therm); + } else + return -ENODEV; - if (sensor->slope_div == 0) - sensor->slope_div = 1; - if (sensor->offset_den == 0) - sensor->offset_den = 1; - if (sensor->slope_mult < 1) - sensor->slope_mult = 1; + /* if the slope or the offset is unset, do no use the sensor */ + if (!sensor->slope_div || !sensor->slope_mult || + !sensor->offset_num || !sensor->offset_den) + return -ENODEV; core_temp = core_temp * sensor->slope_mult / sensor->slope_div; core_temp = core_temp + sensor->offset_num / sensor->offset_den; core_temp = core_temp + sensor->offset_constant - 8; + /* reserve negative temperatures for errors */ + if (core_temp < 0) + core_temp = 0; + return core_temp; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/priv.h b/drivers/gpu/drm/nouveau/core/subdev/therm/priv.h index 06b98706b3fc..438d9824b774 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/priv.h +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/priv.h @@ -102,7 +102,7 @@ struct nouveau_therm_priv { struct i2c_client *ic; }; -int nouveau_therm_mode(struct nouveau_therm *therm, int mode); +int nouveau_therm_fan_mode(struct nouveau_therm *therm, int mode); int nouveau_therm_attr_get(struct nouveau_therm *therm, enum nouveau_therm_attr_type type); int nouveau_therm_attr_set(struct nouveau_therm *therm, @@ -122,6 +122,7 @@ int nouveau_therm_fan_sense(struct nouveau_therm *therm); int nouveau_therm_preinit(struct nouveau_therm *); +void nouveau_therm_sensor_preinit(struct nouveau_therm *); void nouveau_therm_sensor_set_threshold_state(struct nouveau_therm *therm, enum nouveau_therm_thrs thrs, enum nouveau_therm_thrs_state st); diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c b/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c index b37624af8297..470f6a47b656 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c @@ -34,10 +34,6 @@ nouveau_therm_temp_set_defaults(struct nouveau_therm *therm) { struct nouveau_therm_priv *priv = (void *)therm; - priv->bios_sensor.slope_mult = 1; - priv->bios_sensor.slope_div = 1; - priv->bios_sensor.offset_num = 0; - priv->bios_sensor.offset_den = 1; priv->bios_sensor.offset_constant = 0; priv->bios_sensor.thrs_fan_boost.temp = 90; @@ -60,11 +56,6 @@ nouveau_therm_temp_safety_checks(struct nouveau_therm *therm) struct nouveau_therm_priv *priv = (void *)therm; struct nvbios_therm_sensor *s = &priv->bios_sensor; - if (!priv->bios_sensor.slope_div) - priv->bios_sensor.slope_div = 1; - if (!priv->bios_sensor.offset_den) - priv->bios_sensor.offset_den = 1; - /* enforce a minimum hysteresis on thresholds */ s->thrs_fan_boost.hysteresis = max_t(u8, s->thrs_fan_boost.hysteresis, 2); s->thrs_down_clock.hysteresis = max_t(u8, s->thrs_down_clock.hysteresis, 2); @@ -106,16 +97,16 @@ void nouveau_therm_sensor_event(struct nouveau_therm *therm, const char *thresolds[] = { "fanboost", "downclock", "critical", "shutdown" }; - uint8_t temperature = therm->temp_get(therm); + int temperature = therm->temp_get(therm); if (thrs < 0 || thrs > 3) return; if (dir == NOUVEAU_THERM_THRS_FALLING) - nv_info(therm, "temperature (%u C) went below the '%s' threshold\n", + nv_info(therm, "temperature (%i C) went below the '%s' threshold\n", temperature, thresolds[thrs]); else - nv_info(therm, "temperature (%u C) hit the '%s' threshold\n", + nv_info(therm, "temperature (%i C) hit the '%s' threshold\n", temperature, thresolds[thrs]); active = (dir == NOUVEAU_THERM_THRS_RISING); @@ -123,7 +114,7 @@ void nouveau_therm_sensor_event(struct nouveau_therm *therm, case NOUVEAU_THERM_THRS_FANBOOST: if (active) { nouveau_therm_fan_set(therm, true, 100); - nouveau_therm_mode(therm, NOUVEAU_THERM_CTRL_AUTO); + nouveau_therm_fan_mode(therm, NOUVEAU_THERM_CTRL_AUTO); } break; case NOUVEAU_THERM_THRS_DOWNCLOCK: @@ -202,7 +193,7 @@ alarm_timer_callback(struct nouveau_alarm *alarm) NOUVEAU_THERM_THRS_SHUTDOWN); /* schedule the next poll in one second */ - if (list_empty(&alarm->head)) + if (therm->temp_get(therm) >= 0 && list_empty(&alarm->head)) ptimer->alarm(ptimer, 1000 * 1000 * 1000, alarm); spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags); @@ -225,6 +216,17 @@ nouveau_therm_program_alarms_polling(struct nouveau_therm *therm) alarm_timer_callback(&priv->sensor.therm_poll_alarm); } +void +nouveau_therm_sensor_preinit(struct nouveau_therm *therm) +{ + const char *sensor_avail = "yes"; + + if (therm->temp_get(therm) < 0) + sensor_avail = "no"; + + nv_info(therm, "internal sensor: %s\n", sensor_avail); +} + int nouveau_therm_sensor_ctor(struct nouveau_therm *therm) { diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c index bb54098c6d97..936b442a6ab7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_pm.c +++ b/drivers/gpu/drm/nouveau/nouveau_pm.c @@ -402,8 +402,12 @@ nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf) struct drm_device *dev = dev_get_drvdata(d); struct nouveau_drm *drm = nouveau_drm(dev); struct nouveau_therm *therm = nouveau_therm(drm->device); + int temp = therm->temp_get(therm); - return snprintf(buf, PAGE_SIZE, "%d\n", therm->temp_get(therm) * 1000); + if (temp < 0) + return temp; + + return snprintf(buf, PAGE_SIZE, "%d\n", temp * 1000); } static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp, NULL, 0); @@ -871,7 +875,12 @@ static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_get_pwm1_max, nouveau_hwmon_set_pwm1_max, 0); -static struct attribute *hwmon_attributes[] = { +static struct attribute *hwmon_default_attributes[] = { + &sensor_dev_attr_name.dev_attr.attr, + &sensor_dev_attr_update_rate.dev_attr.attr, + NULL +}; +static struct attribute *hwmon_temp_attributes[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_auto_point1_pwm.dev_attr.attr, &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, @@ -882,8 +891,6 @@ static struct attribute *hwmon_attributes[] = { &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, &sensor_dev_attr_temp1_emergency.dev_attr.attr, &sensor_dev_attr_temp1_emergency_hyst.dev_attr.attr, - &sensor_dev_attr_name.dev_attr.attr, - &sensor_dev_attr_update_rate.dev_attr.attr, NULL }; static struct attribute *hwmon_fan_rpm_attributes[] = { @@ -898,8 +905,11 @@ static struct attribute *hwmon_pwm_fan_attributes[] = { NULL }; -static const struct attribute_group hwmon_attrgroup = { - .attrs = hwmon_attributes, +static const struct attribute_group hwmon_default_attrgroup = { + .attrs = hwmon_default_attributes, +}; +static const struct attribute_group hwmon_temp_attrgroup = { + .attrs = hwmon_temp_attributes, }; static const struct attribute_group hwmon_fan_rpm_attrgroup = { .attrs = hwmon_fan_rpm_attributes, @@ -931,13 +941,22 @@ nouveau_hwmon_init(struct drm_device *dev) } dev_set_drvdata(hwmon_dev, dev); - /* default sysfs entries */ - ret = sysfs_create_group(&hwmon_dev->kobj, &hwmon_attrgroup); + /* set the default attributes */ + ret = sysfs_create_group(&hwmon_dev->kobj, &hwmon_default_attrgroup); if (ret) { if (ret) goto error; } + /* if the card has a working thermal sensor */ + if (therm->temp_get(therm) >= 0) { + ret = sysfs_create_group(&hwmon_dev->kobj, &hwmon_temp_attrgroup); + if (ret) { + if (ret) + goto error; + } + } + /* if the card has a pwm fan */ /*XXX: incorrect, need better detection for this, some boards have * the gpio entries for pwm fan control even when there's no @@ -979,11 +998,10 @@ nouveau_hwmon_fini(struct drm_device *dev) struct nouveau_pm *pm = nouveau_pm(dev); if (pm->hwmon) { - sysfs_remove_group(&pm->hwmon->kobj, &hwmon_attrgroup); - sysfs_remove_group(&pm->hwmon->kobj, - &hwmon_pwm_fan_attrgroup); - sysfs_remove_group(&pm->hwmon->kobj, - &hwmon_fan_rpm_attrgroup); + sysfs_remove_group(&pm->hwmon->kobj, &hwmon_default_attrgroup); + sysfs_remove_group(&pm->hwmon->kobj, &hwmon_temp_attrgroup); + sysfs_remove_group(&pm->hwmon->kobj, &hwmon_pwm_fan_attrgroup); + sysfs_remove_group(&pm->hwmon->kobj, &hwmon_fan_rpm_attrgroup); hwmon_device_unregister(pm->hwmon); } diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 2db57990f65c..7f0e6c3f37d1 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -524,6 +524,8 @@ nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb, swap_interval <<= 4; if (swap_interval == 0) swap_interval |= 0x100; + if (chan == NULL) + evo_sync(crtc->dev); push = evo_wait(sync, 128); if (unlikely(push == NULL)) @@ -586,8 +588,6 @@ nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb, sync->addr ^= 0x10; sync->data++; FIRE_RING (chan); - } else { - evo_sync(crtc->dev); } /* queue the flip */ diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index d4c633e12863..27769e724b6d 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -468,13 +468,19 @@ static void cayman_gpu_init(struct radeon_device *rdev) (rdev->pdev->device == 0x9907) || (rdev->pdev->device == 0x9908) || (rdev->pdev->device == 0x9909) || + (rdev->pdev->device == 0x990B) || + (rdev->pdev->device == 0x990C) || + (rdev->pdev->device == 0x990F) || (rdev->pdev->device == 0x9910) || - (rdev->pdev->device == 0x9917)) { + (rdev->pdev->device == 0x9917) || + (rdev->pdev->device == 0x9999)) { rdev->config.cayman.max_simds_per_se = 6; rdev->config.cayman.max_backends_per_se = 2; } else if ((rdev->pdev->device == 0x9903) || (rdev->pdev->device == 0x9904) || (rdev->pdev->device == 0x990A) || + (rdev->pdev->device == 0x990D) || + (rdev->pdev->device == 0x990E) || (rdev->pdev->device == 0x9913) || (rdev->pdev->device == 0x9918)) { rdev->config.cayman.max_simds_per_se = 4; @@ -483,6 +489,9 @@ static void cayman_gpu_init(struct radeon_device *rdev) (rdev->pdev->device == 0x9990) || (rdev->pdev->device == 0x9991) || (rdev->pdev->device == 0x9994) || + (rdev->pdev->device == 0x9995) || + (rdev->pdev->device == 0x9996) || + (rdev->pdev->device == 0x999A) || (rdev->pdev->device == 0x99A0)) { rdev->config.cayman.max_simds_per_se = 3; rdev->config.cayman.max_backends_per_se = 1; @@ -616,11 +625,22 @@ static void cayman_gpu_init(struct radeon_device *rdev) WREG32(DMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config); WREG32(DMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config); - tmp = gb_addr_config & NUM_PIPES_MASK; - tmp = r6xx_remap_render_backend(rdev, tmp, - rdev->config.cayman.max_backends_per_se * - rdev->config.cayman.max_shader_engines, - CAYMAN_MAX_BACKENDS, disabled_rb_mask); + if ((rdev->config.cayman.max_backends_per_se == 1) && + (rdev->flags & RADEON_IS_IGP)) { + if ((disabled_rb_mask & 3) == 1) { + /* RB0 disabled, RB1 enabled */ + tmp = 0x11111111; + } else { + /* RB1 disabled, RB0 enabled */ + tmp = 0x00000000; + } + } else { + tmp = gb_addr_config & NUM_PIPES_MASK; + tmp = r6xx_remap_render_backend(rdev, tmp, + rdev->config.cayman.max_backends_per_se * + rdev->config.cayman.max_shader_engines, + CAYMAN_MAX_BACKENDS, disabled_rb_mask); + } WREG32(GB_BACKEND_MAP, tmp); cgts_tcc_disable = 0xffff0000; @@ -1771,6 +1791,7 @@ int cayman_resume(struct radeon_device *rdev) int cayman_suspend(struct radeon_device *rdev) { r600_audio_fini(rdev); + radeon_vm_manager_fini(rdev); cayman_cp_enable(rdev, false); cayman_dma_stop(rdev); evergreen_irq_suspend(rdev); diff --git a/drivers/gpu/drm/radeon/radeon_benchmark.c b/drivers/gpu/drm/radeon/radeon_benchmark.c index bedda9caadd9..6e05a2e75a46 100644 --- a/drivers/gpu/drm/radeon/radeon_benchmark.c +++ b/drivers/gpu/drm/radeon/radeon_benchmark.c @@ -122,10 +122,7 @@ static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size, goto out_cleanup; } - /* r100 doesn't have dma engine so skip the test */ - /* also, VRAM-to-VRAM test doesn't make much sense for DMA */ - /* skip it as well if domains are the same */ - if ((rdev->asic->copy.dma) && (sdomain != ddomain)) { + if (rdev->asic->copy.dma) { time = radeon_benchmark_do_move(rdev, size, saddr, daddr, RADEON_BENCHMARK_COPY_DMA, n); if (time < 0) @@ -135,13 +132,15 @@ static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size, sdomain, ddomain, "dma"); } - time = radeon_benchmark_do_move(rdev, size, saddr, daddr, - RADEON_BENCHMARK_COPY_BLIT, n); - if (time < 0) - goto out_cleanup; - if (time > 0) - radeon_benchmark_log_results(n, size, time, - sdomain, ddomain, "blit"); + if (rdev->asic->copy.blit) { + time = radeon_benchmark_do_move(rdev, size, saddr, daddr, + RADEON_BENCHMARK_COPY_BLIT, n); + if (time < 0) + goto out_cleanup; + if (time > 0) + radeon_benchmark_log_results(n, size, time, + sdomain, ddomain, "blit"); + } out_cleanup: if (sobj) { diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 9128120da044..bafbe3216952 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -4469,6 +4469,7 @@ int si_resume(struct radeon_device *rdev) int si_suspend(struct radeon_device *rdev) { + radeon_vm_manager_fini(rdev); si_cp_enable(rdev, false); cayman_dma_stop(rdev); si_irq_suspend(rdev); diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 92e47e5c9564..c4388776f4e4 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -590,6 +590,9 @@ #define USB_VENDOR_ID_MONTEREY 0x0566 #define USB_DEVICE_ID_GENIUS_KB29E 0x3004 +#define USB_VENDOR_ID_MSI 0x1770 +#define USB_DEVICE_ID_MSI_GX680R_LED_PANEL 0xff00 + #define USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR 0x0400 #define USB_DEVICE_ID_N_S_HARMONY 0xc359 @@ -684,6 +687,9 @@ #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001 0x3001 #define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008 0x3008 +#define USB_VENDOR_ID_REALTEK 0x0bda +#define USB_DEVICE_ID_REALTEK_READER 0x0152 + #define USB_VENDOR_ID_ROCCAT 0x1e7d #define USB_DEVICE_ID_ROCCAT_ARVO 0x30d4 #define USB_DEVICE_ID_ROCCAT_ISKU 0x319c diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 7a1ebb867cf4..82e9211b3ca9 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -621,6 +621,7 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, { struct mt_device *td = hid_get_drvdata(hid); __s32 quirks = td->mtclass.quirks; + struct input_dev *input = field->hidinput->input; if (hid->claimed & HID_CLAIMED_INPUT) { switch (usage->hid) { @@ -670,13 +671,16 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, break; default: + if (usage->type) + input_event(input, usage->type, usage->code, + value); return; } if (usage->usage_index + 1 == field->report_count) { /* we only take into account the last report. */ if (usage->hid == td->last_slot_field) - mt_complete_slot(td, field->hidinput->input); + mt_complete_slot(td, input); if (field->index == td->last_field_index && td->num_received >= td->num_expected) diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 8e0c4bf94ebc..1f9e56bfeaa0 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -1493,7 +1493,7 @@ static int hid_suspend(struct usb_interface *intf, pm_message_t message) { struct hid_device *hid = usb_get_intfdata(intf); struct usbhid_device *usbhid = hid->driver_data; - int status; + int status = 0; bool driver_suspended = false; if (PMSG_IS_AUTO(message)) { @@ -1520,19 +1520,15 @@ static int hid_suspend(struct usb_interface *intf, pm_message_t message) } } else { - if (hid->driver && hid->driver->suspend) { + /* TODO: resume() might need to handle suspend failure */ + if (hid->driver && hid->driver->suspend) status = hid->driver->suspend(hid, message); - if (status < 0) - return status; - } driver_suspended = true; spin_lock_irq(&usbhid->lock); set_bit(HID_SUSPENDED, &usbhid->iofl); spin_unlock_irq(&usbhid->lock); - if (usbhid_wait_io(hid) < 0) { + if (usbhid_wait_io(hid) < 0) status = -EIO; - goto failed; - } } hid_cancel_delayed_stuff(usbhid); @@ -1544,7 +1540,7 @@ static int hid_suspend(struct usb_interface *intf, pm_message_t message) goto failed; } dev_dbg(&intf->dev, "suspend\n"); - return 0; + return status; failed: hid_resume_common(hid, driver_suspended); diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index e0e6abf1cd3b..19b8360f2330 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -73,6 +73,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET }, { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET }, + { USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GX680R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS }, @@ -80,6 +81,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET }, { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001, HID_QUIRK_NOGET }, { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008, HID_QUIRK_NOGET }, + { USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET }, { USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET }, { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET }, diff --git a/drivers/hwmon/lm75.h b/drivers/hwmon/lm75.h index 668ff4721323..5cde94e56f17 100644 --- a/drivers/hwmon/lm75.h +++ b/drivers/hwmon/lm75.h @@ -25,7 +25,7 @@ which contains this code, we don't worry about the wasted space. */ -#include <linux/hwmon.h> +#include <linux/kernel.h> /* straight from the datasheet */ #define LM75_TEMP_MIN (-55000) diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 46cde098c11c..e380c6eef3af 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -4,7 +4,6 @@ menuconfig I2C tristate "I2C support" - depends on !S390 select RT_MUTEXES ---help--- I2C (pronounce: I-squared-C) is a slow serial bus protocol used in @@ -76,6 +75,7 @@ config I2C_HELPER_AUTO config I2C_SMBUS tristate "SMBus-specific protocols" if !I2C_HELPER_AUTO + depends on GENERIC_HARDIRQS help Say Y here if you want support for SMBus extensions to the I2C specification. At the moment, the only supported extension is diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index a3725de92384..adfee98486b1 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -114,7 +114,7 @@ config I2C_I801 config I2C_ISCH tristate "Intel SCH SMBus 1.0" - depends on PCI + depends on PCI && GENERIC_HARDIRQS select LPC_SCH help Say Y here if you want to use SMBus controller on the Intel SCH @@ -543,6 +543,7 @@ config I2C_NUC900 config I2C_OCORES tristate "OpenCores I2C Controller" + depends on GENERIC_HARDIRQS help If you say yes to this option, support will be included for the OpenCores I2C controller. For details see @@ -777,7 +778,7 @@ config I2C_DIOLAN_U2C config I2C_PARPORT tristate "Parallel port adapter" - depends on PARPORT + depends on PARPORT && GENERIC_HARDIRQS select I2C_ALGOBIT select I2C_SMBUS help @@ -802,6 +803,7 @@ config I2C_PARPORT config I2C_PARPORT_LIGHT tristate "Parallel port adapter (light)" + depends on GENERIC_HARDIRQS select I2C_ALGOBIT select I2C_SMBUS help diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c index e9205ee8cf94..130f02cc9d94 100644 --- a/drivers/i2c/busses/i2c-ismt.c +++ b/drivers/i2c/busses/i2c-ismt.c @@ -80,6 +80,7 @@ /* PCI DIDs for the Intel SMBus Message Transport (SMT) Devices */ #define PCI_DEVICE_ID_INTEL_S1200_SMT0 0x0c59 #define PCI_DEVICE_ID_INTEL_S1200_SMT1 0x0c5a +#define PCI_DEVICE_ID_INTEL_AVOTON_SMT 0x1f15 #define ISMT_DESC_ENTRIES 32 /* number of descriptor entries */ #define ISMT_MAX_RETRIES 3 /* number of SMBus retries to attempt */ @@ -185,6 +186,7 @@ struct ismt_priv { static const DEFINE_PCI_DEVICE_TABLE(ismt_ids) = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_S1200_SMT0) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_S1200_SMT1) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_AVOTON_SMT) }, { 0, } }; diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 36704e3ab3fa..b714776b6ddd 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -411,7 +411,11 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev) int clk_multiplier = I2C_CLK_MULTIPLIER_STD_FAST_MODE; u32 clk_divisor; - tegra_i2c_clock_enable(i2c_dev); + err = tegra_i2c_clock_enable(i2c_dev); + if (err < 0) { + dev_err(i2c_dev->dev, "Clock enable failed %d\n", err); + return err; + } tegra_periph_reset_assert(i2c_dev->div_clk); udelay(2); @@ -628,7 +632,12 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], if (i2c_dev->is_suspended) return -EBUSY; - tegra_i2c_clock_enable(i2c_dev); + ret = tegra_i2c_clock_enable(i2c_dev); + if (ret < 0) { + dev_err(i2c_dev->dev, "Clock enable failed %d\n", ret); + return ret; + } + for (i = 0; i < num; i++) { enum msg_end_type end_type = MSG_END_STOP; if (i < (num - 1)) { diff --git a/drivers/i2c/muxes/i2c-mux-pca9541.c b/drivers/i2c/muxes/i2c-mux-pca9541.c index f3b8f9a6a89b..966a18a5d12d 100644 --- a/drivers/i2c/muxes/i2c-mux-pca9541.c +++ b/drivers/i2c/muxes/i2c-mux-pca9541.c @@ -3,7 +3,7 @@ * * Copyright (c) 2010 Ericsson AB. * - * Author: Guenter Roeck <guenter.roeck@ericsson.com> + * Author: Guenter Roeck <linux@roeck-us.net> * * Derived from: * pca954x.c diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 565bfb161c1a..a3fde52840ca 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -1575,6 +1575,12 @@ static int c4iw_reconnect(struct c4iw_ep *ep) neigh = dst_neigh_lookup(ep->dst, &ep->com.cm_id->remote_addr.sin_addr.s_addr); + if (!neigh) { + pr_err("%s - cannot alloc neigh.\n", __func__); + err = -ENOMEM; + goto fail4; + } + /* get a l2t entry */ if (neigh->dev->flags & IFF_LOOPBACK) { PDBG("%s LOOPBACK\n", __func__); @@ -3053,6 +3059,12 @@ static int rx_pkt(struct c4iw_dev *dev, struct sk_buff *skb) dst = &rt->dst; neigh = dst_neigh_lookup_skb(dst, skb); + if (!neigh) { + pr_err("%s - failed to allocate neigh!\n", + __func__); + goto free_dst; + } + if (neigh->dev->flags & IFF_LOOPBACK) { pdev = ip_dev_find(&init_net, iph->daddr); e = cxgb4_l2t_get(dev->rdev.lldi.l2t, neigh, diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 17ba4f8bc12d..70b1808a08f4 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -186,8 +186,10 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, wq->rq.queue = dma_alloc_coherent(&(rdev->lldi.pdev->dev), wq->rq.memsize, &(wq->rq.dma_addr), GFP_KERNEL); - if (!wq->rq.queue) + if (!wq->rq.queue) { + ret = -ENOMEM; goto free_sq; + } PDBG("%s sq base va 0x%p pa 0x%llx rq base va 0x%p pa 0x%llx\n", __func__, wq->sq.queue, (unsigned long long)virt_to_phys(wq->sq.queue), diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 439c35d4a669..ea93870266eb 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -620,7 +620,7 @@ void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data, goto bail; } - opcode = be32_to_cpu(ohdr->bth[0]) >> 24; + opcode = (be32_to_cpu(ohdr->bth[0]) >> 24) & 0x7f; dev->opstats[opcode].n_bytes += tlen; dev->opstats[opcode].n_packets++; diff --git a/drivers/infiniband/hw/qib/Kconfig b/drivers/infiniband/hw/qib/Kconfig index 8349f9c5064c..1e603a375069 100644 --- a/drivers/infiniband/hw/qib/Kconfig +++ b/drivers/infiniband/hw/qib/Kconfig @@ -1,7 +1,7 @@ config INFINIBAND_QIB - tristate "QLogic PCIe HCA support" + tristate "Intel PCIe HCA support" depends on 64BIT ---help--- - This is a low-level driver for QLogic PCIe QLE InfiniBand host - channel adapters. This driver does not support the QLogic + This is a low-level driver for Intel PCIe QLE InfiniBand host + channel adapters. This driver does not support the Intel HyperTransport card (model QHT7140). diff --git a/drivers/infiniband/hw/qib/qib_driver.c b/drivers/infiniband/hw/qib/qib_driver.c index 5423edcab51f..216092477dfc 100644 --- a/drivers/infiniband/hw/qib/qib_driver.c +++ b/drivers/infiniband/hw/qib/qib_driver.c @@ -1,4 +1,5 @@ /* + * Copyright (c) 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006, 2007, 2008, 2009 QLogic Corporation. All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. * @@ -63,8 +64,8 @@ MODULE_PARM_DESC(compat_ddr_negotiate, "Attempt pre-IBTA 1.2 DDR speed negotiation"); MODULE_LICENSE("Dual BSD/GPL"); -MODULE_AUTHOR("QLogic <support@qlogic.com>"); -MODULE_DESCRIPTION("QLogic IB driver"); +MODULE_AUTHOR("Intel <ibsupport@intel.com>"); +MODULE_DESCRIPTION("Intel IB driver"); MODULE_VERSION(QIB_DRIVER_VERSION); /* diff --git a/drivers/infiniband/hw/qib/qib_iba6120.c b/drivers/infiniband/hw/qib/qib_iba6120.c index a099ac171e22..0232ae56b1fa 100644 --- a/drivers/infiniband/hw/qib/qib_iba6120.c +++ b/drivers/infiniband/hw/qib/qib_iba6120.c @@ -1,4 +1,5 @@ /* + * Copyright (c) 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation. * All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. @@ -51,7 +52,7 @@ static u32 qib_6120_iblink_state(u64); /* * This file contains all the chip-specific register information and - * access functions for the QLogic QLogic_IB PCI-Express chip. + * access functions for the Intel Intel_IB PCI-Express chip. * */ diff --git a/drivers/infiniband/hw/qib/qib_init.c b/drivers/infiniband/hw/qib/qib_init.c index 50e33aa0b4e3..173f805790da 100644 --- a/drivers/infiniband/hw/qib/qib_init.c +++ b/drivers/infiniband/hw/qib/qib_init.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2012, 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. * @@ -1138,7 +1138,7 @@ void qib_disable_after_error(struct qib_devdata *dd) static void qib_remove_one(struct pci_dev *); static int qib_init_one(struct pci_dev *, const struct pci_device_id *); -#define DRIVER_LOAD_MSG "QLogic " QIB_DRV_NAME " loaded: " +#define DRIVER_LOAD_MSG "Intel " QIB_DRV_NAME " loaded: " #define PFX QIB_DRV_NAME ": " static DEFINE_PCI_DEVICE_TABLE(qib_pci_tbl) = { @@ -1355,7 +1355,7 @@ static int qib_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dd = qib_init_iba6120_funcs(pdev, ent); #else qib_early_err(&pdev->dev, - "QLogic PCIE device 0x%x cannot work if CONFIG_PCI_MSI is not enabled\n", + "Intel PCIE device 0x%x cannot work if CONFIG_PCI_MSI is not enabled\n", ent->device); dd = ERR_PTR(-ENODEV); #endif @@ -1371,7 +1371,7 @@ static int qib_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) default: qib_early_err(&pdev->dev, - "Failing on unknown QLogic deviceid 0x%x\n", + "Failing on unknown Intel deviceid 0x%x\n", ent->device); ret = -ENODEV; } diff --git a/drivers/infiniband/hw/qib/qib_sd7220.c b/drivers/infiniband/hw/qib/qib_sd7220.c index 50a8a0d4fe67..08a6c6d39e56 100644 --- a/drivers/infiniband/hw/qib/qib_sd7220.c +++ b/drivers/infiniband/hw/qib/qib_sd7220.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. * @@ -44,7 +44,7 @@ #include "qib.h" #include "qib_7220.h" -#define SD7220_FW_NAME "qlogic/sd7220.fw" +#define SD7220_FW_NAME "intel/sd7220.fw" MODULE_FIRMWARE(SD7220_FW_NAME); /* diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c index ba51a4715a1d..7c0ab16a2fe2 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.c +++ b/drivers/infiniband/hw/qib/qib_verbs.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012 Intel Corporation. All rights reserved. + * Copyright (c) 2012, 2013 Intel Corporation. All rights reserved. * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved. * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved. * @@ -2224,7 +2224,7 @@ int qib_register_ib_device(struct qib_devdata *dd) ibdev->dma_ops = &qib_dma_mapping_ops; snprintf(ibdev->node_desc, sizeof(ibdev->node_desc), - "QLogic Infiniband HCA %s", init_utsname()->nodename); + "Intel Infiniband HCA %s", init_utsname()->nodename); ret = ib_register_device(ibdev, qib_create_port_files); if (ret) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 67b0c1d23678..1ef880de3a41 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -758,9 +758,13 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_ if (++priv->tx_outstanding == ipoib_sendq_size) { ipoib_dbg(priv, "TX ring 0x%x full, stopping kernel net queue\n", tx->qp->qp_num); - if (ib_req_notify_cq(priv->send_cq, IB_CQ_NEXT_COMP)) - ipoib_warn(priv, "request notify on send CQ failed\n"); netif_stop_queue(dev); + rc = ib_req_notify_cq(priv->send_cq, + IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS); + if (rc < 0) + ipoib_warn(priv, "request notify on send CQ failed\n"); + else if (rc) + ipoib_send_comp_handler(priv->send_cq, dev); } } } diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c index 7cd74e29cbc8..9135606c8649 100644 --- a/drivers/input/joystick/analog.c +++ b/drivers/input/joystick/analog.c @@ -158,14 +158,10 @@ static unsigned int get_time_pit(void) #define GET_TIME(x) rdtscl(x) #define DELTA(x,y) ((y)-(x)) #define TIME_NAME "TSC" -#elif defined(__alpha__) +#elif defined(__alpha__) || defined(CONFIG_MN10300) || defined(CONFIG_ARM) || defined(CONFIG_TILE) #define GET_TIME(x) do { x = get_cycles(); } while (0) #define DELTA(x,y) ((y)-(x)) -#define TIME_NAME "PCC" -#elif defined(CONFIG_MN10300) || defined(CONFIG_TILE) -#define GET_TIME(x) do { x = get_cycles(); } while (0) -#define DELTA(x, y) ((x) - (y)) -#define TIME_NAME "TSC" +#define TIME_NAME "get_cycles" #else #define FAKE_TIME static unsigned long analog_faketime = 0; diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 5c514d0711d1..c332fb98480d 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -130,7 +130,7 @@ config IRQ_REMAP # OMAP IOMMU support config OMAP_IOMMU bool "OMAP IOMMU Support" - depends on ARCH_OMAP + depends on ARCH_OMAP2PLUS select IOMMU_API config OMAP_IOVMM diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 98f555dafb55..b287ca33833d 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2466,18 +2466,16 @@ static int device_change_notifier(struct notifier_block *nb, /* allocate a protection domain if a device is added */ dma_domain = find_protection_domain(devid); - if (dma_domain) - goto out; - dma_domain = dma_ops_domain_alloc(); - if (!dma_domain) - goto out; - dma_domain->target_dev = devid; - - spin_lock_irqsave(&iommu_pd_list_lock, flags); - list_add_tail(&dma_domain->list, &iommu_pd_list); - spin_unlock_irqrestore(&iommu_pd_list_lock, flags); - - dev_data = get_dev_data(dev); + if (!dma_domain) { + dma_domain = dma_ops_domain_alloc(); + if (!dma_domain) + goto out; + dma_domain->target_dev = devid; + + spin_lock_irqsave(&iommu_pd_list_lock, flags); + list_add_tail(&dma_domain->list, &iommu_pd_list); + spin_unlock_irqrestore(&iommu_pd_list_lock, flags); + } dev->archdata.dma_ops = &amd_iommu_dma_ops; diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index b6ecddb63cd0..e3c2d74b7684 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -980,7 +980,7 @@ static void __init free_iommu_all(void) * BIOS should disable L2B micellaneous clock gating by setting * L2_L2B_CK_GATE_CONTROL[CKGateL2BMiscDisable](D0F2xF4_x90[2]) = 1b */ -static void __init amd_iommu_erratum_746_workaround(struct amd_iommu *iommu) +static void amd_iommu_erratum_746_workaround(struct amd_iommu *iommu) { u32 value; diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index d56f8c17c5fe..7c11ff368d07 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -2,7 +2,6 @@ #include <linux/cpumask.h> #include <linux/kernel.h> #include <linux/string.h> -#include <linux/cpumask.h> #include <linux/errno.h> #include <linux/msi.h> #include <linux/irq.h> diff --git a/drivers/isdn/hisax/Kconfig b/drivers/isdn/hisax/Kconfig index 5313c9ea44dc..d9edcc94c2a8 100644 --- a/drivers/isdn/hisax/Kconfig +++ b/drivers/isdn/hisax/Kconfig @@ -237,7 +237,8 @@ config HISAX_MIC config HISAX_NETJET bool "NETjet card" - depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K || (MIPS && !CPU_LITTLE_ENDIAN) || FRV || (XTENSA && !CPU_LITTLE_ENDIAN))) + depends on PCI && (BROKEN || !(PPC || PARISC || M68K || (MIPS && !CPU_LITTLE_ENDIAN) || FRV || (XTENSA && !CPU_LITTLE_ENDIAN))) + depends on VIRT_TO_BUS help This enables HiSax support for the NetJet from Traverse Technologies. @@ -248,7 +249,8 @@ config HISAX_NETJET config HISAX_NETJET_U bool "NETspider U card" - depends on PCI && (BROKEN || !(SPARC || PPC || PARISC || M68K || (MIPS && !CPU_LITTLE_ENDIAN) || FRV || (XTENSA && !CPU_LITTLE_ENDIAN))) + depends on PCI && (BROKEN || !(PPC || PARISC || M68K || (MIPS && !CPU_LITTLE_ENDIAN) || FRV || (XTENSA && !CPU_LITTLE_ENDIAN))) + depends on VIRT_TO_BUS help This enables HiSax support for the Netspider U interface ISDN card from Traverse Technologies. diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index 3c955e10a618..c6083132c4b8 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -1025,6 +1025,8 @@ void dm_bufio_prefetch(struct dm_bufio_client *c, { struct blk_plug plug; + BUG_ON(dm_bufio_in_request()); + blk_start_plug(&plug); dm_bufio_lock(c); diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c index fbd3625f2748..83e995fece88 100644 --- a/drivers/md/dm-cache-metadata.c +++ b/drivers/md/dm-cache-metadata.c @@ -83,6 +83,8 @@ struct cache_disk_superblock { __le32 read_misses; __le32 write_hits; __le32 write_misses; + + __le32 policy_version[CACHE_POLICY_VERSION_SIZE]; } __packed; struct dm_cache_metadata { @@ -109,6 +111,7 @@ struct dm_cache_metadata { bool clean_when_opened:1; char policy_name[CACHE_POLICY_NAME_SIZE]; + unsigned policy_version[CACHE_POLICY_VERSION_SIZE]; size_t policy_hint_size; struct dm_cache_statistics stats; }; @@ -268,7 +271,8 @@ static int __write_initial_superblock(struct dm_cache_metadata *cmd) memset(disk_super->uuid, 0, sizeof(disk_super->uuid)); disk_super->magic = cpu_to_le64(CACHE_SUPERBLOCK_MAGIC); disk_super->version = cpu_to_le32(CACHE_VERSION); - memset(disk_super->policy_name, 0, CACHE_POLICY_NAME_SIZE); + memset(disk_super->policy_name, 0, sizeof(disk_super->policy_name)); + memset(disk_super->policy_version, 0, sizeof(disk_super->policy_version)); disk_super->policy_hint_size = 0; r = dm_sm_copy_root(cmd->metadata_sm, &disk_super->metadata_space_map_root, @@ -284,7 +288,6 @@ static int __write_initial_superblock(struct dm_cache_metadata *cmd) disk_super->metadata_block_size = cpu_to_le32(DM_CACHE_METADATA_BLOCK_SIZE >> SECTOR_SHIFT); disk_super->data_block_size = cpu_to_le32(cmd->data_block_size); disk_super->cache_blocks = cpu_to_le32(0); - memset(disk_super->policy_name, 0, sizeof(disk_super->policy_name)); disk_super->read_hits = cpu_to_le32(0); disk_super->read_misses = cpu_to_le32(0); @@ -478,6 +481,9 @@ static void read_superblock_fields(struct dm_cache_metadata *cmd, cmd->data_block_size = le32_to_cpu(disk_super->data_block_size); cmd->cache_blocks = to_cblock(le32_to_cpu(disk_super->cache_blocks)); strncpy(cmd->policy_name, disk_super->policy_name, sizeof(cmd->policy_name)); + cmd->policy_version[0] = le32_to_cpu(disk_super->policy_version[0]); + cmd->policy_version[1] = le32_to_cpu(disk_super->policy_version[1]); + cmd->policy_version[2] = le32_to_cpu(disk_super->policy_version[2]); cmd->policy_hint_size = le32_to_cpu(disk_super->policy_hint_size); cmd->stats.read_hits = le32_to_cpu(disk_super->read_hits); @@ -572,6 +578,9 @@ static int __commit_transaction(struct dm_cache_metadata *cmd, disk_super->discard_nr_blocks = cpu_to_le64(from_dblock(cmd->discard_nr_blocks)); disk_super->cache_blocks = cpu_to_le32(from_cblock(cmd->cache_blocks)); strncpy(disk_super->policy_name, cmd->policy_name, sizeof(disk_super->policy_name)); + disk_super->policy_version[0] = cpu_to_le32(cmd->policy_version[0]); + disk_super->policy_version[1] = cpu_to_le32(cmd->policy_version[1]); + disk_super->policy_version[2] = cpu_to_le32(cmd->policy_version[2]); disk_super->read_hits = cpu_to_le32(cmd->stats.read_hits); disk_super->read_misses = cpu_to_le32(cmd->stats.read_misses); @@ -854,18 +863,43 @@ struct thunk { bool hints_valid; }; +static bool policy_unchanged(struct dm_cache_metadata *cmd, + struct dm_cache_policy *policy) +{ + const char *policy_name = dm_cache_policy_get_name(policy); + const unsigned *policy_version = dm_cache_policy_get_version(policy); + size_t policy_hint_size = dm_cache_policy_get_hint_size(policy); + + /* + * Ensure policy names match. + */ + if (strncmp(cmd->policy_name, policy_name, sizeof(cmd->policy_name))) + return false; + + /* + * Ensure policy major versions match. + */ + if (cmd->policy_version[0] != policy_version[0]) + return false; + + /* + * Ensure policy hint sizes match. + */ + if (cmd->policy_hint_size != policy_hint_size) + return false; + + return true; +} + static bool hints_array_initialized(struct dm_cache_metadata *cmd) { return cmd->hint_root && cmd->policy_hint_size; } static bool hints_array_available(struct dm_cache_metadata *cmd, - const char *policy_name) + struct dm_cache_policy *policy) { - bool policy_names_match = !strncmp(cmd->policy_name, policy_name, - sizeof(cmd->policy_name)); - - return cmd->clean_when_opened && policy_names_match && + return cmd->clean_when_opened && policy_unchanged(cmd, policy) && hints_array_initialized(cmd); } @@ -899,7 +933,8 @@ static int __load_mapping(void *context, uint64_t cblock, void *leaf) return r; } -static int __load_mappings(struct dm_cache_metadata *cmd, const char *policy_name, +static int __load_mappings(struct dm_cache_metadata *cmd, + struct dm_cache_policy *policy, load_mapping_fn fn, void *context) { struct thunk thunk; @@ -909,18 +944,19 @@ static int __load_mappings(struct dm_cache_metadata *cmd, const char *policy_nam thunk.cmd = cmd; thunk.respect_dirty_flags = cmd->clean_when_opened; - thunk.hints_valid = hints_array_available(cmd, policy_name); + thunk.hints_valid = hints_array_available(cmd, policy); return dm_array_walk(&cmd->info, cmd->root, __load_mapping, &thunk); } -int dm_cache_load_mappings(struct dm_cache_metadata *cmd, const char *policy_name, +int dm_cache_load_mappings(struct dm_cache_metadata *cmd, + struct dm_cache_policy *policy, load_mapping_fn fn, void *context) { int r; down_read(&cmd->root_lock); - r = __load_mappings(cmd, policy_name, fn, context); + r = __load_mappings(cmd, policy, fn, context); up_read(&cmd->root_lock); return r; @@ -979,7 +1015,7 @@ static int __dirty(struct dm_cache_metadata *cmd, dm_cblock_t cblock, bool dirty /* nothing to be done */ return 0; - value = pack_value(oblock, flags | (dirty ? M_DIRTY : 0)); + value = pack_value(oblock, (flags & ~M_DIRTY) | (dirty ? M_DIRTY : 0)); __dm_bless_for_disk(&value); r = dm_array_set_value(&cmd->info, cmd->root, from_cblock(cblock), @@ -1070,13 +1106,15 @@ static int begin_hints(struct dm_cache_metadata *cmd, struct dm_cache_policy *po __le32 value; size_t hint_size; const char *policy_name = dm_cache_policy_get_name(policy); + const unsigned *policy_version = dm_cache_policy_get_version(policy); if (!policy_name[0] || (strlen(policy_name) > sizeof(cmd->policy_name) - 1)) return -EINVAL; - if (strcmp(cmd->policy_name, policy_name)) { + if (!policy_unchanged(cmd, policy)) { strncpy(cmd->policy_name, policy_name, sizeof(cmd->policy_name)); + memcpy(cmd->policy_version, policy_version, sizeof(cmd->policy_version)); hint_size = dm_cache_policy_get_hint_size(policy); if (!hint_size) diff --git a/drivers/md/dm-cache-metadata.h b/drivers/md/dm-cache-metadata.h index 135864ea0eee..f45cef21f3d0 100644 --- a/drivers/md/dm-cache-metadata.h +++ b/drivers/md/dm-cache-metadata.h @@ -89,7 +89,7 @@ typedef int (*load_mapping_fn)(void *context, dm_oblock_t oblock, dm_cblock_t cblock, bool dirty, uint32_t hint, bool hint_valid); int dm_cache_load_mappings(struct dm_cache_metadata *cmd, - const char *policy_name, + struct dm_cache_policy *policy, load_mapping_fn fn, void *context); diff --git a/drivers/md/dm-cache-policy-cleaner.c b/drivers/md/dm-cache-policy-cleaner.c index cc05d70b3cb8..b04d1f904d07 100644 --- a/drivers/md/dm-cache-policy-cleaner.c +++ b/drivers/md/dm-cache-policy-cleaner.c @@ -17,7 +17,6 @@ /*----------------------------------------------------------------*/ #define DM_MSG_PREFIX "cache cleaner" -#define CLEANER_VERSION "1.0.0" /* Cache entry struct. */ struct wb_cache_entry { @@ -434,6 +433,7 @@ static struct dm_cache_policy *wb_create(dm_cblock_t cache_size, static struct dm_cache_policy_type wb_policy_type = { .name = "cleaner", + .version = {1, 0, 0}, .hint_size = 0, .owner = THIS_MODULE, .create = wb_create @@ -446,7 +446,10 @@ static int __init wb_init(void) if (r < 0) DMERR("register failed %d", r); else - DMINFO("version " CLEANER_VERSION " loaded"); + DMINFO("version %u.%u.%u loaded", + wb_policy_type.version[0], + wb_policy_type.version[1], + wb_policy_type.version[2]); return r; } diff --git a/drivers/md/dm-cache-policy-internal.h b/drivers/md/dm-cache-policy-internal.h index 52a75beeced5..0928abdc49f0 100644 --- a/drivers/md/dm-cache-policy-internal.h +++ b/drivers/md/dm-cache-policy-internal.h @@ -117,6 +117,8 @@ void dm_cache_policy_destroy(struct dm_cache_policy *p); */ const char *dm_cache_policy_get_name(struct dm_cache_policy *p); +const unsigned *dm_cache_policy_get_version(struct dm_cache_policy *p); + size_t dm_cache_policy_get_hint_size(struct dm_cache_policy *p); /*----------------------------------------------------------------*/ diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c index 964153255076..dc112a7137fe 100644 --- a/drivers/md/dm-cache-policy-mq.c +++ b/drivers/md/dm-cache-policy-mq.c @@ -14,7 +14,6 @@ #include <linux/vmalloc.h> #define DM_MSG_PREFIX "cache-policy-mq" -#define MQ_VERSION "1.0.0" static struct kmem_cache *mq_entry_cache; @@ -1133,6 +1132,7 @@ bad_cache_alloc: static struct dm_cache_policy_type mq_policy_type = { .name = "mq", + .version = {1, 0, 0}, .hint_size = 4, .owner = THIS_MODULE, .create = mq_create @@ -1140,6 +1140,7 @@ static struct dm_cache_policy_type mq_policy_type = { static struct dm_cache_policy_type default_policy_type = { .name = "default", + .version = {1, 0, 0}, .hint_size = 4, .owner = THIS_MODULE, .create = mq_create @@ -1164,7 +1165,10 @@ static int __init mq_init(void) r = dm_cache_policy_register(&default_policy_type); if (!r) { - DMINFO("version " MQ_VERSION " loaded"); + DMINFO("version %u.%u.%u loaded", + mq_policy_type.version[0], + mq_policy_type.version[1], + mq_policy_type.version[2]); return 0; } diff --git a/drivers/md/dm-cache-policy.c b/drivers/md/dm-cache-policy.c index 2cbf5fdaac52..21c03c570c06 100644 --- a/drivers/md/dm-cache-policy.c +++ b/drivers/md/dm-cache-policy.c @@ -150,6 +150,14 @@ const char *dm_cache_policy_get_name(struct dm_cache_policy *p) } EXPORT_SYMBOL_GPL(dm_cache_policy_get_name); +const unsigned *dm_cache_policy_get_version(struct dm_cache_policy *p) +{ + struct dm_cache_policy_type *t = p->private; + + return t->version; +} +EXPORT_SYMBOL_GPL(dm_cache_policy_get_version); + size_t dm_cache_policy_get_hint_size(struct dm_cache_policy *p) { struct dm_cache_policy_type *t = p->private; diff --git a/drivers/md/dm-cache-policy.h b/drivers/md/dm-cache-policy.h index f0f51b260544..558bdfdabf5f 100644 --- a/drivers/md/dm-cache-policy.h +++ b/drivers/md/dm-cache-policy.h @@ -196,6 +196,7 @@ struct dm_cache_policy { * We maintain a little register of the different policy types. */ #define CACHE_POLICY_NAME_SIZE 16 +#define CACHE_POLICY_VERSION_SIZE 3 struct dm_cache_policy_type { /* For use by the register code only. */ @@ -206,6 +207,7 @@ struct dm_cache_policy_type { * what gets passed on the target line to select your policy. */ char name[CACHE_POLICY_NAME_SIZE]; + unsigned version[CACHE_POLICY_VERSION_SIZE]; /* * Policies may store a hint for each each cache block. diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index 0f4e84b15c30..66120bd46d15 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -142,6 +142,7 @@ struct cache { spinlock_t lock; struct bio_list deferred_bios; struct bio_list deferred_flush_bios; + struct bio_list deferred_writethrough_bios; struct list_head quiesced_migrations; struct list_head completed_migrations; struct list_head need_commit_migrations; @@ -158,7 +159,7 @@ struct cache { /* * origin_blocks entries, discarded if set. */ - sector_t discard_block_size; /* a power of 2 times sectors per block */ + uint32_t discard_block_size; /* a power of 2 times sectors per block */ dm_dblock_t discard_nr_blocks; unsigned long *discard_bitset; @@ -199,6 +200,11 @@ struct per_bio_data { bool tick:1; unsigned req_nr:2; struct dm_deferred_entry *all_io_entry; + + /* writethrough fields */ + struct cache *cache; + dm_cblock_t cblock; + bio_end_io_t *saved_bi_end_io; }; struct dm_cache_migration { @@ -412,17 +418,24 @@ static bool block_size_is_power_of_two(struct cache *cache) return cache->sectors_per_block_shift >= 0; } +static dm_block_t block_div(dm_block_t b, uint32_t n) +{ + do_div(b, n); + + return b; +} + static dm_dblock_t oblock_to_dblock(struct cache *cache, dm_oblock_t oblock) { - sector_t discard_blocks = cache->discard_block_size; + uint32_t discard_blocks = cache->discard_block_size; dm_block_t b = from_oblock(oblock); if (!block_size_is_power_of_two(cache)) - (void) sector_div(discard_blocks, cache->sectors_per_block); + discard_blocks = discard_blocks / cache->sectors_per_block; else discard_blocks >>= cache->sectors_per_block_shift; - (void) sector_div(b, discard_blocks); + b = block_div(b, discard_blocks); return to_dblock(b); } @@ -609,6 +622,56 @@ static void issue(struct cache *cache, struct bio *bio) spin_unlock_irqrestore(&cache->lock, flags); } +static void defer_writethrough_bio(struct cache *cache, struct bio *bio) +{ + unsigned long flags; + + spin_lock_irqsave(&cache->lock, flags); + bio_list_add(&cache->deferred_writethrough_bios, bio); + spin_unlock_irqrestore(&cache->lock, flags); + + wake_worker(cache); +} + +static void writethrough_endio(struct bio *bio, int err) +{ + struct per_bio_data *pb = get_per_bio_data(bio); + bio->bi_end_io = pb->saved_bi_end_io; + + if (err) { + bio_endio(bio, err); + return; + } + + remap_to_cache(pb->cache, bio, pb->cblock); + + /* + * We can't issue this bio directly, since we're in interrupt + * context. So it get's put on a bio list for processing by the + * worker thread. + */ + defer_writethrough_bio(pb->cache, bio); +} + +/* + * When running in writethrough mode we need to send writes to clean blocks + * to both the cache and origin devices. In future we'd like to clone the + * bio and send them in parallel, but for now we're doing them in + * series as this is easier. + */ +static void remap_to_origin_then_cache(struct cache *cache, struct bio *bio, + dm_oblock_t oblock, dm_cblock_t cblock) +{ + struct per_bio_data *pb = get_per_bio_data(bio); + + pb->cache = cache; + pb->cblock = cblock; + pb->saved_bi_end_io = bio->bi_end_io; + bio->bi_end_io = writethrough_endio; + + remap_to_origin_clear_discard(pb->cache, bio, oblock); +} + /*---------------------------------------------------------------- * Migration processing * @@ -1002,7 +1065,7 @@ static void process_discard_bio(struct cache *cache, struct bio *bio) dm_block_t end_block = bio->bi_sector + bio_sectors(bio); dm_block_t b; - (void) sector_div(end_block, cache->discard_block_size); + end_block = block_div(end_block, cache->discard_block_size); for (b = start_block; b < end_block; b++) set_discard(cache, to_dblock(b)); @@ -1070,14 +1133,9 @@ static void process_bio(struct cache *cache, struct prealloc *structs, inc_hit_counter(cache, bio); pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds); - if (is_writethrough_io(cache, bio, lookup_result.cblock)) { - /* - * No need to mark anything dirty in write through mode. - */ - pb->req_nr == 0 ? - remap_to_cache(cache, bio, lookup_result.cblock) : - remap_to_origin_clear_discard(cache, bio, block); - } else + if (is_writethrough_io(cache, bio, lookup_result.cblock)) + remap_to_origin_then_cache(cache, bio, block, lookup_result.cblock); + else remap_to_cache_dirty(cache, bio, block, lookup_result.cblock); issue(cache, bio); @@ -1086,17 +1144,8 @@ static void process_bio(struct cache *cache, struct prealloc *structs, case POLICY_MISS: inc_miss_counter(cache, bio); pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds); - - if (pb->req_nr != 0) { - /* - * This is a duplicate writethrough io that is no - * longer needed because the block has been demoted. - */ - bio_endio(bio, 0); - } else { - remap_to_origin_clear_discard(cache, bio, block); - issue(cache, bio); - } + remap_to_origin_clear_discard(cache, bio, block); + issue(cache, bio); break; case POLICY_NEW: @@ -1217,6 +1266,23 @@ static void process_deferred_flush_bios(struct cache *cache, bool submit_bios) submit_bios ? generic_make_request(bio) : bio_io_error(bio); } +static void process_deferred_writethrough_bios(struct cache *cache) +{ + unsigned long flags; + struct bio_list bios; + struct bio *bio; + + bio_list_init(&bios); + + spin_lock_irqsave(&cache->lock, flags); + bio_list_merge(&bios, &cache->deferred_writethrough_bios); + bio_list_init(&cache->deferred_writethrough_bios); + spin_unlock_irqrestore(&cache->lock, flags); + + while ((bio = bio_list_pop(&bios))) + generic_make_request(bio); +} + static void writeback_some_dirty_blocks(struct cache *cache) { int r = 0; @@ -1313,6 +1379,7 @@ static int more_work(struct cache *cache) else return !bio_list_empty(&cache->deferred_bios) || !bio_list_empty(&cache->deferred_flush_bios) || + !bio_list_empty(&cache->deferred_writethrough_bios) || !list_empty(&cache->quiesced_migrations) || !list_empty(&cache->completed_migrations) || !list_empty(&cache->need_commit_migrations); @@ -1331,6 +1398,8 @@ static void do_worker(struct work_struct *ws) writeback_some_dirty_blocks(cache); + process_deferred_writethrough_bios(cache); + if (commit_if_needed(cache)) { process_deferred_flush_bios(cache, false); @@ -1756,8 +1825,11 @@ static int create_cache_policy(struct cache *cache, struct cache_args *ca, } r = set_config_values(cache->policy, ca->policy_argc, ca->policy_argv); - if (r) + if (r) { + *error = "Error setting cache policy's config values"; dm_cache_policy_destroy(cache->policy); + cache->policy = NULL; + } return r; } @@ -1793,8 +1865,6 @@ static sector_t calculate_discard_block_size(sector_t cache_block_size, #define DEFAULT_MIGRATION_THRESHOLD (2048 * 100) -static unsigned cache_num_write_bios(struct dm_target *ti, struct bio *bio); - static int cache_create(struct cache_args *ca, struct cache **result) { int r = 0; @@ -1821,9 +1891,6 @@ static int cache_create(struct cache_args *ca, struct cache **result) memcpy(&cache->features, &ca->features, sizeof(cache->features)); - if (cache->features.write_through) - ti->num_write_bios = cache_num_write_bios; - cache->callbacks.congested_fn = cache_is_congested; dm_table_add_target_callbacks(ti->table, &cache->callbacks); @@ -1835,7 +1902,7 @@ static int cache_create(struct cache_args *ca, struct cache **result) /* FIXME: factor out this whole section */ origin_blocks = cache->origin_sectors = ca->origin_sectors; - (void) sector_div(origin_blocks, ca->block_size); + origin_blocks = block_div(origin_blocks, ca->block_size); cache->origin_blocks = to_oblock(origin_blocks); cache->sectors_per_block = ca->block_size; @@ -1848,7 +1915,7 @@ static int cache_create(struct cache_args *ca, struct cache **result) dm_block_t cache_size = ca->cache_sectors; cache->sectors_per_block_shift = -1; - (void) sector_div(cache_size, ca->block_size); + cache_size = block_div(cache_size, ca->block_size); cache->cache_size = to_cblock(cache_size); } else { cache->sectors_per_block_shift = __ffs(ca->block_size); @@ -1873,6 +1940,7 @@ static int cache_create(struct cache_args *ca, struct cache **result) spin_lock_init(&cache->lock); bio_list_init(&cache->deferred_bios); bio_list_init(&cache->deferred_flush_bios); + bio_list_init(&cache->deferred_writethrough_bios); INIT_LIST_HEAD(&cache->quiesced_migrations); INIT_LIST_HEAD(&cache->completed_migrations); INIT_LIST_HEAD(&cache->need_commit_migrations); @@ -2002,6 +2070,8 @@ static int cache_ctr(struct dm_target *ti, unsigned argc, char **argv) goto out; r = cache_create(ca, &cache); + if (r) + goto out; r = copy_ctr_args(cache, argc - 3, (const char **)argv + 3); if (r) { @@ -2016,20 +2086,6 @@ out: return r; } -static unsigned cache_num_write_bios(struct dm_target *ti, struct bio *bio) -{ - int r; - struct cache *cache = ti->private; - dm_oblock_t block = get_bio_block(cache, bio); - dm_cblock_t cblock; - - r = policy_lookup(cache->policy, block, &cblock); - if (r < 0) - return 2; /* assume the worst */ - - return (!r && !is_dirty(cache, cblock)) ? 2 : 1; -} - static int cache_map(struct dm_target *ti, struct bio *bio) { struct cache *cache = ti->private; @@ -2097,18 +2153,12 @@ static int cache_map(struct dm_target *ti, struct bio *bio) inc_hit_counter(cache, bio); pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds); - if (is_writethrough_io(cache, bio, lookup_result.cblock)) { - /* - * No need to mark anything dirty in write through mode. - */ - pb->req_nr == 0 ? - remap_to_cache(cache, bio, lookup_result.cblock) : - remap_to_origin_clear_discard(cache, bio, block); - cell_defer(cache, cell, false); - } else { + if (is_writethrough_io(cache, bio, lookup_result.cblock)) + remap_to_origin_then_cache(cache, bio, block, lookup_result.cblock); + else remap_to_cache_dirty(cache, bio, block, lookup_result.cblock); - cell_defer(cache, cell, false); - } + + cell_defer(cache, cell, false); break; case POLICY_MISS: @@ -2319,8 +2369,7 @@ static int cache_preresume(struct dm_target *ti) } if (!cache->loaded_mappings) { - r = dm_cache_load_mappings(cache->cmd, - dm_cache_policy_get_name(cache->policy), + r = dm_cache_load_mappings(cache->cmd, cache->policy, load_mapping, cache); if (r) { DMERR("could not load cache mappings"); @@ -2535,7 +2584,7 @@ static void cache_io_hints(struct dm_target *ti, struct queue_limits *limits) static struct target_type cache_target = { .name = "cache", - .version = {1, 0, 0}, + .version = {1, 1, 0}, .module = THIS_MODULE, .ctr = cache_ctr, .dtr = cache_dtr, diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 009339d62828..004ad1652b73 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -1577,6 +1577,11 @@ static bool data_dev_supports_discard(struct pool_c *pt) return q && blk_queue_discard(q); } +static bool is_factor(sector_t block_size, uint32_t n) +{ + return !sector_div(block_size, n); +} + /* * If discard_passdown was enabled verify that the data device * supports discards. Disable discard_passdown if not. @@ -1602,7 +1607,7 @@ static void disable_passdown_if_not_supported(struct pool_c *pt) else if (data_limits->discard_granularity > block_size) reason = "discard granularity larger than a block"; - else if (block_size & (data_limits->discard_granularity - 1)) + else if (!is_factor(block_size, data_limits->discard_granularity)) reason = "discard granularity not a factor of block size"; if (reason) { @@ -2544,7 +2549,7 @@ static struct target_type pool_target = { .name = "thin-pool", .features = DM_TARGET_SINGLETON | DM_TARGET_ALWAYS_WRITEABLE | DM_TARGET_IMMUTABLE, - .version = {1, 6, 1}, + .version = {1, 7, 0}, .module = THIS_MODULE, .ctr = pool_ctr, .dtr = pool_dtr, @@ -2831,7 +2836,7 @@ static int thin_iterate_devices(struct dm_target *ti, static struct target_type thin_target = { .name = "thin", - .version = {1, 7, 1}, + .version = {1, 8, 0}, .module = THIS_MODULE, .ctr = thin_ctr, .dtr = thin_dtr, diff --git a/drivers/md/dm-verity.c b/drivers/md/dm-verity.c index 6ad538375c3c..a746f1d21c66 100644 --- a/drivers/md/dm-verity.c +++ b/drivers/md/dm-verity.c @@ -93,6 +93,13 @@ struct dm_verity_io { */ }; +struct dm_verity_prefetch_work { + struct work_struct work; + struct dm_verity *v; + sector_t block; + unsigned n_blocks; +}; + static struct shash_desc *io_hash_desc(struct dm_verity *v, struct dm_verity_io *io) { return (struct shash_desc *)(io + 1); @@ -424,15 +431,18 @@ static void verity_end_io(struct bio *bio, int error) * The root buffer is not prefetched, it is assumed that it will be cached * all the time. */ -static void verity_prefetch_io(struct dm_verity *v, struct dm_verity_io *io) +static void verity_prefetch_io(struct work_struct *work) { + struct dm_verity_prefetch_work *pw = + container_of(work, struct dm_verity_prefetch_work, work); + struct dm_verity *v = pw->v; int i; for (i = v->levels - 2; i >= 0; i--) { sector_t hash_block_start; sector_t hash_block_end; - verity_hash_at_level(v, io->block, i, &hash_block_start, NULL); - verity_hash_at_level(v, io->block + io->n_blocks - 1, i, &hash_block_end, NULL); + verity_hash_at_level(v, pw->block, i, &hash_block_start, NULL); + verity_hash_at_level(v, pw->block + pw->n_blocks - 1, i, &hash_block_end, NULL); if (!i) { unsigned cluster = ACCESS_ONCE(dm_verity_prefetch_cluster); @@ -452,6 +462,25 @@ no_prefetch_cluster: dm_bufio_prefetch(v->bufio, hash_block_start, hash_block_end - hash_block_start + 1); } + + kfree(pw); +} + +static void verity_submit_prefetch(struct dm_verity *v, struct dm_verity_io *io) +{ + struct dm_verity_prefetch_work *pw; + + pw = kmalloc(sizeof(struct dm_verity_prefetch_work), + GFP_NOIO | __GFP_NORETRY | __GFP_NOMEMALLOC | __GFP_NOWARN); + + if (!pw) + return; + + INIT_WORK(&pw->work, verity_prefetch_io); + pw->v = v; + pw->block = io->block; + pw->n_blocks = io->n_blocks; + queue_work(v->verify_wq, &pw->work); } /* @@ -498,7 +527,7 @@ static int verity_map(struct dm_target *ti, struct bio *bio) memcpy(io->io_vec, bio_iovec(bio), io->io_vec_size * sizeof(struct bio_vec)); - verity_prefetch_io(v, io); + verity_submit_prefetch(v, io); generic_make_request(bio); @@ -858,7 +887,7 @@ bad: static struct target_type verity_target = { .name = "verity", - .version = {1, 1, 1}, + .version = {1, 2, 0}, .module = THIS_MODULE, .ctr = verity_ctr, .dtr = verity_dtr, diff --git a/drivers/md/md.c b/drivers/md/md.c index fcb878f88796..aeceedfc530b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7663,10 +7663,8 @@ static int remove_and_add_spares(struct mddev *mddev) removed++; } } - if (removed) - sysfs_notify(&mddev->kobj, NULL, - "degraded"); - + if (removed && mddev->kobj.sd) + sysfs_notify(&mddev->kobj, NULL, "degraded"); rdev_for_each(rdev, mddev) { if (rdev->raid_disk >= 0 && diff --git a/drivers/md/md.h b/drivers/md/md.h index eca59c3074ef..d90fb1a879e1 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -506,7 +506,7 @@ static inline char * mdname (struct mddev * mddev) static inline int sysfs_link_rdev(struct mddev *mddev, struct md_rdev *rdev) { char nm[20]; - if (!test_bit(Replacement, &rdev->flags)) { + if (!test_bit(Replacement, &rdev->flags) && mddev->kobj.sd) { sprintf(nm, "rd%d", rdev->raid_disk); return sysfs_create_link(&mddev->kobj, &rdev->kobj, nm); } else @@ -516,7 +516,7 @@ static inline int sysfs_link_rdev(struct mddev *mddev, struct md_rdev *rdev) static inline void sysfs_unlink_rdev(struct mddev *mddev, struct md_rdev *rdev) { char nm[20]; - if (!test_bit(Replacement, &rdev->flags)) { + if (!test_bit(Replacement, &rdev->flags) && mddev->kobj.sd) { sprintf(nm, "rd%d", rdev->raid_disk); sysfs_remove_link(&mddev->kobj, nm); } diff --git a/drivers/md/persistent-data/dm-btree-remove.c b/drivers/md/persistent-data/dm-btree-remove.c index c4f28133ef82..b88757cd0d1d 100644 --- a/drivers/md/persistent-data/dm-btree-remove.c +++ b/drivers/md/persistent-data/dm-btree-remove.c @@ -139,15 +139,8 @@ struct child { struct btree_node *n; }; -static struct dm_btree_value_type le64_type = { - .context = NULL, - .size = sizeof(__le64), - .inc = NULL, - .dec = NULL, - .equal = NULL -}; - -static int init_child(struct dm_btree_info *info, struct btree_node *parent, +static int init_child(struct dm_btree_info *info, struct dm_btree_value_type *vt, + struct btree_node *parent, unsigned index, struct child *result) { int r, inc; @@ -164,7 +157,7 @@ static int init_child(struct dm_btree_info *info, struct btree_node *parent, result->n = dm_block_data(result->block); if (inc) - inc_children(info->tm, result->n, &le64_type); + inc_children(info->tm, result->n, vt); *((__le64 *) value_ptr(parent, index)) = cpu_to_le64(dm_block_location(result->block)); @@ -236,7 +229,7 @@ static void __rebalance2(struct dm_btree_info *info, struct btree_node *parent, } static int rebalance2(struct shadow_spine *s, struct dm_btree_info *info, - unsigned left_index) + struct dm_btree_value_type *vt, unsigned left_index) { int r; struct btree_node *parent; @@ -244,11 +237,11 @@ static int rebalance2(struct shadow_spine *s, struct dm_btree_info *info, parent = dm_block_data(shadow_current(s)); - r = init_child(info, parent, left_index, &left); + r = init_child(info, vt, parent, left_index, &left); if (r) return r; - r = init_child(info, parent, left_index + 1, &right); + r = init_child(info, vt, parent, left_index + 1, &right); if (r) { exit_child(info, &left); return r; @@ -368,7 +361,7 @@ static void __rebalance3(struct dm_btree_info *info, struct btree_node *parent, } static int rebalance3(struct shadow_spine *s, struct dm_btree_info *info, - unsigned left_index) + struct dm_btree_value_type *vt, unsigned left_index) { int r; struct btree_node *parent = dm_block_data(shadow_current(s)); @@ -377,17 +370,17 @@ static int rebalance3(struct shadow_spine *s, struct dm_btree_info *info, /* * FIXME: fill out an array? */ - r = init_child(info, parent, left_index, &left); + r = init_child(info, vt, parent, left_index, &left); if (r) return r; - r = init_child(info, parent, left_index + 1, ¢er); + r = init_child(info, vt, parent, left_index + 1, ¢er); if (r) { exit_child(info, &left); return r; } - r = init_child(info, parent, left_index + 2, &right); + r = init_child(info, vt, parent, left_index + 2, &right); if (r) { exit_child(info, &left); exit_child(info, ¢er); @@ -434,7 +427,8 @@ static int get_nr_entries(struct dm_transaction_manager *tm, } static int rebalance_children(struct shadow_spine *s, - struct dm_btree_info *info, uint64_t key) + struct dm_btree_info *info, + struct dm_btree_value_type *vt, uint64_t key) { int i, r, has_left_sibling, has_right_sibling; uint32_t child_entries; @@ -472,13 +466,13 @@ static int rebalance_children(struct shadow_spine *s, has_right_sibling = i < (le32_to_cpu(n->header.nr_entries) - 1); if (!has_left_sibling) - r = rebalance2(s, info, i); + r = rebalance2(s, info, vt, i); else if (!has_right_sibling) - r = rebalance2(s, info, i - 1); + r = rebalance2(s, info, vt, i - 1); else - r = rebalance3(s, info, i - 1); + r = rebalance3(s, info, vt, i - 1); return r; } @@ -529,7 +523,7 @@ static int remove_raw(struct shadow_spine *s, struct dm_btree_info *info, if (le32_to_cpu(n->header.flags) & LEAF_NODE) return do_leaf(n, key, index); - r = rebalance_children(s, info, key); + r = rebalance_children(s, info, vt, key); if (r) break; @@ -550,6 +544,14 @@ static int remove_raw(struct shadow_spine *s, struct dm_btree_info *info, return r; } +static struct dm_btree_value_type le64_type = { + .context = NULL, + .size = sizeof(__le64), + .inc = NULL, + .dec = NULL, + .equal = NULL +}; + int dm_btree_remove(struct dm_btree_info *info, dm_block_t root, uint64_t *keys, dm_block_t *new_root) { diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 3ee2912889e7..24909eb13fec 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -671,9 +671,11 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) bi->bi_next = NULL; if (rrdev) set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags); - trace_block_bio_remap(bdev_get_queue(bi->bi_bdev), - bi, disk_devt(conf->mddev->gendisk), - sh->dev[i].sector); + + if (conf->mddev->gendisk) + trace_block_bio_remap(bdev_get_queue(bi->bi_bdev), + bi, disk_devt(conf->mddev->gendisk), + sh->dev[i].sector); generic_make_request(bi); } if (rrdev) { @@ -701,9 +703,10 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) rbi->bi_io_vec[0].bv_offset = 0; rbi->bi_size = STRIPE_SIZE; rbi->bi_next = NULL; - trace_block_bio_remap(bdev_get_queue(rbi->bi_bdev), - rbi, disk_devt(conf->mddev->gendisk), - sh->dev[i].sector); + if (conf->mddev->gendisk) + trace_block_bio_remap(bdev_get_queue(rbi->bi_bdev), + rbi, disk_devt(conf->mddev->gendisk), + sh->dev[i].sector); generic_make_request(rbi); } if (!rdev && !rrdev) { @@ -2280,17 +2283,6 @@ schedule_reconstruction(struct stripe_head *sh, struct stripe_head_state *s, int level = conf->level; if (rcw) { - /* if we are not expanding this is a proper write request, and - * there will be bios with new data to be drained into the - * stripe cache - */ - if (!expand) { - sh->reconstruct_state = reconstruct_state_drain_run; - set_bit(STRIPE_OP_BIODRAIN, &s->ops_request); - } else - sh->reconstruct_state = reconstruct_state_run; - - set_bit(STRIPE_OP_RECONSTRUCT, &s->ops_request); for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; @@ -2303,6 +2295,21 @@ schedule_reconstruction(struct stripe_head *sh, struct stripe_head_state *s, s->locked++; } } + /* if we are not expanding this is a proper write request, and + * there will be bios with new data to be drained into the + * stripe cache + */ + if (!expand) { + if (!s->locked) + /* False alarm, nothing to do */ + return; + sh->reconstruct_state = reconstruct_state_drain_run; + set_bit(STRIPE_OP_BIODRAIN, &s->ops_request); + } else + sh->reconstruct_state = reconstruct_state_run; + + set_bit(STRIPE_OP_RECONSTRUCT, &s->ops_request); + if (s->locked + conf->max_degraded == disks) if (!test_and_set_bit(STRIPE_FULL_WRITE, &sh->state)) atomic_inc(&conf->pending_full_writes); @@ -2311,11 +2318,6 @@ schedule_reconstruction(struct stripe_head *sh, struct stripe_head_state *s, BUG_ON(!(test_bit(R5_UPTODATE, &sh->dev[pd_idx].flags) || test_bit(R5_Wantcompute, &sh->dev[pd_idx].flags))); - sh->reconstruct_state = reconstruct_state_prexor_drain_run; - set_bit(STRIPE_OP_PREXOR, &s->ops_request); - set_bit(STRIPE_OP_BIODRAIN, &s->ops_request); - set_bit(STRIPE_OP_RECONSTRUCT, &s->ops_request); - for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; if (i == pd_idx) @@ -2330,6 +2332,13 @@ schedule_reconstruction(struct stripe_head *sh, struct stripe_head_state *s, s->locked++; } } + if (!s->locked) + /* False alarm - nothing to do */ + return; + sh->reconstruct_state = reconstruct_state_prexor_drain_run; + set_bit(STRIPE_OP_PREXOR, &s->ops_request); + set_bit(STRIPE_OP_BIODRAIN, &s->ops_request); + set_bit(STRIPE_OP_RECONSTRUCT, &s->ops_request); } /* keep the parity disk(s) locked while asynchronous operations @@ -2564,6 +2573,8 @@ handle_failed_sync(struct r5conf *conf, struct stripe_head *sh, int i; clear_bit(STRIPE_SYNCING, &sh->state); + if (test_and_clear_bit(R5_Overlap, &sh->dev[sh->pd_idx].flags)) + wake_up(&conf->wait_for_overlap); s->syncing = 0; s->replacing = 0; /* There is nothing more to do for sync/check/repair. @@ -2737,6 +2748,7 @@ static void handle_stripe_clean_event(struct r5conf *conf, { int i; struct r5dev *dev; + int discard_pending = 0; for (i = disks; i--; ) if (sh->dev[i].written) { @@ -2765,9 +2777,23 @@ static void handle_stripe_clean_event(struct r5conf *conf, STRIPE_SECTORS, !test_bit(STRIPE_DEGRADED, &sh->state), 0); - } - } else if (test_bit(R5_Discard, &sh->dev[i].flags)) - clear_bit(R5_Discard, &sh->dev[i].flags); + } else if (test_bit(R5_Discard, &dev->flags)) + discard_pending = 1; + } + if (!discard_pending && + test_bit(R5_Discard, &sh->dev[sh->pd_idx].flags)) { + clear_bit(R5_Discard, &sh->dev[sh->pd_idx].flags); + clear_bit(R5_UPTODATE, &sh->dev[sh->pd_idx].flags); + if (sh->qd_idx >= 0) { + clear_bit(R5_Discard, &sh->dev[sh->qd_idx].flags); + clear_bit(R5_UPTODATE, &sh->dev[sh->qd_idx].flags); + } + /* now that discard is done we can proceed with any sync */ + clear_bit(STRIPE_DISCARD, &sh->state); + if (test_bit(STRIPE_SYNC_REQUESTED, &sh->state)) + set_bit(STRIPE_HANDLE, &sh->state); + + } if (test_and_clear_bit(STRIPE_FULL_WRITE, &sh->state)) if (atomic_dec_and_test(&conf->pending_full_writes)) @@ -2826,8 +2852,10 @@ static void handle_stripe_dirtying(struct r5conf *conf, set_bit(STRIPE_HANDLE, &sh->state); if (rmw < rcw && rmw > 0) { /* prefer read-modify-write, but need to get some data */ - blk_add_trace_msg(conf->mddev->queue, "raid5 rmw %llu %d", - (unsigned long long)sh->sector, rmw); + if (conf->mddev->queue) + blk_add_trace_msg(conf->mddev->queue, + "raid5 rmw %llu %d", + (unsigned long long)sh->sector, rmw); for (i = disks; i--; ) { struct r5dev *dev = &sh->dev[i]; if ((dev->towrite || i == sh->pd_idx) && @@ -2877,7 +2905,7 @@ static void handle_stripe_dirtying(struct r5conf *conf, } } } - if (rcw) + if (rcw && conf->mddev->queue) blk_add_trace_msg(conf->mddev->queue, "raid5 rcw %llu %d %d %d", (unsigned long long)sh->sector, rcw, qread, test_bit(STRIPE_DELAYED, &sh->state)); @@ -3417,9 +3445,15 @@ static void handle_stripe(struct stripe_head *sh) return; } - if (test_and_clear_bit(STRIPE_SYNC_REQUESTED, &sh->state)) { - set_bit(STRIPE_SYNCING, &sh->state); - clear_bit(STRIPE_INSYNC, &sh->state); + if (test_bit(STRIPE_SYNC_REQUESTED, &sh->state)) { + spin_lock(&sh->stripe_lock); + /* Cannot process 'sync' concurrently with 'discard' */ + if (!test_bit(STRIPE_DISCARD, &sh->state) && + test_and_clear_bit(STRIPE_SYNC_REQUESTED, &sh->state)) { + set_bit(STRIPE_SYNCING, &sh->state); + clear_bit(STRIPE_INSYNC, &sh->state); + } + spin_unlock(&sh->stripe_lock); } clear_bit(STRIPE_DELAYED, &sh->state); @@ -3579,6 +3613,8 @@ static void handle_stripe(struct stripe_head *sh) test_bit(STRIPE_INSYNC, &sh->state)) { md_done_sync(conf->mddev, STRIPE_SECTORS, 1); clear_bit(STRIPE_SYNCING, &sh->state); + if (test_and_clear_bit(R5_Overlap, &sh->dev[sh->pd_idx].flags)) + wake_up(&conf->wait_for_overlap); } /* If the failed drives are just a ReadError, then we might need @@ -3982,9 +4018,10 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) atomic_inc(&conf->active_aligned_reads); spin_unlock_irq(&conf->device_lock); - trace_block_bio_remap(bdev_get_queue(align_bi->bi_bdev), - align_bi, disk_devt(mddev->gendisk), - raid_bio->bi_sector); + if (mddev->gendisk) + trace_block_bio_remap(bdev_get_queue(align_bi->bi_bdev), + align_bi, disk_devt(mddev->gendisk), + raid_bio->bi_sector); generic_make_request(align_bi); return 1; } else { @@ -4078,7 +4115,8 @@ static void raid5_unplug(struct blk_plug_cb *blk_cb, bool from_schedule) } spin_unlock_irq(&conf->device_lock); } - trace_block_unplug(mddev->queue, cnt, !from_schedule); + if (mddev->queue) + trace_block_unplug(mddev->queue, cnt, !from_schedule); kfree(cb); } @@ -4141,6 +4179,13 @@ static void make_discard_request(struct mddev *mddev, struct bio *bi) sh = get_active_stripe(conf, logical_sector, 0, 0, 0); prepare_to_wait(&conf->wait_for_overlap, &w, TASK_UNINTERRUPTIBLE); + set_bit(R5_Overlap, &sh->dev[sh->pd_idx].flags); + if (test_bit(STRIPE_SYNCING, &sh->state)) { + release_stripe(sh); + schedule(); + goto again; + } + clear_bit(R5_Overlap, &sh->dev[sh->pd_idx].flags); spin_lock_irq(&sh->stripe_lock); for (d = 0; d < conf->raid_disks; d++) { if (d == sh->pd_idx || d == sh->qd_idx) @@ -4153,6 +4198,7 @@ static void make_discard_request(struct mddev *mddev, struct bio *bi) goto again; } } + set_bit(STRIPE_DISCARD, &sh->state); finish_wait(&conf->wait_for_overlap, &w); for (d = 0; d < conf->raid_disks; d++) { if (d == sh->pd_idx || d == sh->qd_idx) diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h index 18b2c4a8a1fd..b0b663b119a8 100644 --- a/drivers/md/raid5.h +++ b/drivers/md/raid5.h @@ -221,10 +221,6 @@ struct stripe_head { struct stripe_operations { int target, target2; enum sum_check_flags zero_sum_result; - #ifdef CONFIG_MULTICORE_RAID456 - unsigned long request; - wait_queue_head_t wait_for_ops; - #endif } ops; struct r5dev { /* rreq and rvec are used for the replacement device when @@ -323,6 +319,7 @@ enum { STRIPE_COMPUTE_RUN, STRIPE_OPS_REQ_PENDING, STRIPE_ON_UNPLUG_LIST, + STRIPE_DISCARD, }; /* diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c index d4e7567b367c..0b899cb6cda1 100644 --- a/drivers/media/i2c/m5mols/m5mols_core.c +++ b/drivers/media/i2c/m5mols/m5mols_core.c @@ -724,7 +724,7 @@ static int m5mols_s_stream(struct v4l2_subdev *sd, int enable) if (enable) { if (is_code(code, M5MOLS_RESTYPE_MONITOR)) ret = m5mols_start_monitor(info); - if (is_code(code, M5MOLS_RESTYPE_CAPTURE)) + else if (is_code(code, M5MOLS_RESTYPE_CAPTURE)) ret = m5mols_start_capture(info); else ret = -EINVAL; diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index ccd18e4ee789..54579e4c740b 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -250,17 +250,19 @@ static u8 SRAM_Table[][60] = vdelay start of active video in 2 * field lines relative to trailing edge of /VRESET pulse (VDELAY register). sheight height of active video in 2 * field lines. + extraheight Added to sheight for cropcap.bounds.height only videostart0 ITU-R frame line number of the line corresponding to vdelay in the first field. */ #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \ - vdelay, sheight, videostart0) \ + vdelay, sheight, extraheight, videostart0) \ .cropcap.bounds.left = minhdelayx1, \ /* * 2 because vertically we count field lines times two, */ \ /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \ .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \ /* 4 is a safety margin at the end of the line. */ \ .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \ - .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \ + .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \ + MIN_VDELAY, \ .cropcap.defrect.left = hdelayx1, \ .cropcap.defrect.top = (videostart0) * 2, \ .cropcap.defrect.width = swidth, \ @@ -301,9 +303,10 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* totalwidth */ 1135, /* sqwidth */ 944, /* vdelay */ 0x20, - /* bt878 (and bt848?) can capture another - line below active video. */ - /* sheight */ (576 + 2) + 0x20 - 2, + /* sheight */ 576, + /* bt878 (and bt848?) can capture another + line below active video. */ + /* extraheight */ 2, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, @@ -330,6 +333,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 780, /* vdelay */ 0x1a, /* sheight */ 480, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_SECAM, @@ -355,6 +359,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 944, /* vdelay */ 0x20, /* sheight */ 576, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_PAL_Nc, @@ -380,6 +385,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 780, /* vdelay */ 0x1a, /* sheight */ 576, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_PAL_M, @@ -405,6 +411,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 780, /* vdelay */ 0x1a, /* sheight */ 480, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_PAL_N, @@ -430,6 +437,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 944, /* vdelay */ 0x20, /* sheight */ 576, + /* extraheight */ 0, /* videostart0 */ 23) },{ .v4l2_id = V4L2_STD_NTSC_M_JP, @@ -455,6 +463,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 780, /* vdelay */ 0x16, /* sheight */ 480, + /* extraheight */ 0, /* videostart0 */ 23) },{ /* that one hopefully works with the strange timing @@ -484,6 +493,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = { /* sqwidth */ 944, /* vdelay */ 0x1a, /* sheight */ 480, + /* extraheight */ 0, /* videostart0 */ 23) } }; diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c index 82d9f6ac12f3..33b5ffc8d66d 100644 --- a/drivers/media/platform/exynos-gsc/gsc-core.c +++ b/drivers/media/platform/exynos-gsc/gsc-core.c @@ -1054,16 +1054,18 @@ static int gsc_m2m_suspend(struct gsc_dev *gsc) static int gsc_m2m_resume(struct gsc_dev *gsc) { + struct gsc_ctx *ctx; unsigned long flags; spin_lock_irqsave(&gsc->slock, flags); /* Clear for full H/W setup in first run after resume */ + ctx = gsc->m2m.ctx; gsc->m2m.ctx = NULL; spin_unlock_irqrestore(&gsc->slock, flags); if (test_and_clear_bit(ST_M2M_SUSPENDED, &gsc->state)) - gsc_m2m_job_finish(gsc->m2m.ctx, - VB2_BUF_STATE_ERROR); + gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); + return 0; } @@ -1204,7 +1206,7 @@ static int gsc_resume(struct device *dev) /* Do not resume if the device was idle before system suspend */ spin_lock_irqsave(&gsc->slock, flags); if (!test_and_clear_bit(ST_SUSPEND, &gsc->state) || - !gsc_m2m_active(gsc)) { + !gsc_m2m_opened(gsc)) { spin_unlock_irqrestore(&gsc->slock, flags); return 0; } diff --git a/drivers/media/platform/s5p-fimc/fimc-core.c b/drivers/media/platform/s5p-fimc/fimc-core.c index e3916bde45cf..0f513dd19f86 100644 --- a/drivers/media/platform/s5p-fimc/fimc-core.c +++ b/drivers/media/platform/s5p-fimc/fimc-core.c @@ -850,16 +850,18 @@ static int fimc_m2m_suspend(struct fimc_dev *fimc) static int fimc_m2m_resume(struct fimc_dev *fimc) { + struct fimc_ctx *ctx; unsigned long flags; spin_lock_irqsave(&fimc->slock, flags); /* Clear for full H/W setup in first run after resume */ + ctx = fimc->m2m.ctx; fimc->m2m.ctx = NULL; spin_unlock_irqrestore(&fimc->slock, flags); if (test_and_clear_bit(ST_M2M_SUSPENDED, &fimc->state)) - fimc_m2m_job_finish(fimc->m2m.ctx, - VB2_BUF_STATE_ERROR); + fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); + return 0; } diff --git a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c index f0af0754a7b4..ac9663ce2a49 100644 --- a/drivers/media/platform/s5p-fimc/fimc-lite-reg.c +++ b/drivers/media/platform/s5p-fimc/fimc-lite-reg.c @@ -128,10 +128,10 @@ static const u32 src_pixfmt_map[8][3] = { void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f) { enum v4l2_mbus_pixelcode pixelcode = dev->fmt->mbus_code; - unsigned int i = ARRAY_SIZE(src_pixfmt_map); + int i = ARRAY_SIZE(src_pixfmt_map); u32 cfg; - while (i-- >= 0) { + while (--i >= 0) { if (src_pixfmt_map[i][0] == pixelcode) break; } @@ -224,9 +224,9 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f) { V4L2_MBUS_FMT_VYUY8_2X8, FLITE_REG_CIODMAFMT_CRYCBY }, }; u32 cfg = readl(dev->regs + FLITE_REG_CIODMAFMT); - unsigned int i = ARRAY_SIZE(pixcode); + int i = ARRAY_SIZE(pixcode); - while (i-- >= 0) + while (--i >= 0) if (pixcode[i][0] == dev->fmt->mbus_code) break; cfg &= ~FLITE_REG_CIODMAFMT_YCBCR_ORDER_MASK; diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c index bfc4206935c8..bbc35de7db27 100644 --- a/drivers/media/platform/s5p-fimc/fimc-lite.c +++ b/drivers/media/platform/s5p-fimc/fimc-lite.c @@ -1408,6 +1408,7 @@ static const struct v4l2_ctrl_config fimc_lite_ctrl = { .id = V4L2_CTRL_CLASS_USER | 0x1001, .type = V4L2_CTRL_TYPE_BOOLEAN, .name = "Test Pattern 640x480", + .step = 1, }; static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc) diff --git a/drivers/media/platform/s5p-fimc/fimc-mdevice.c b/drivers/media/platform/s5p-fimc/fimc-mdevice.c index a17fcb2d5d41..cd38d708ab58 100644 --- a/drivers/media/platform/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/platform/s5p-fimc/fimc-mdevice.c @@ -827,7 +827,7 @@ static int fimc_md_link_notify(struct media_pad *source, struct fimc_pipeline *pipeline; struct v4l2_subdev *sd; struct mutex *lock; - int ret = 0; + int i, ret = 0; int ref_count; if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV) @@ -854,29 +854,28 @@ static int fimc_md_link_notify(struct media_pad *source, return 0; } + mutex_lock(lock); + ref_count = fimc ? fimc->vid_cap.refcnt : fimc_lite->ref_count; + if (!(flags & MEDIA_LNK_FL_ENABLED)) { - int i; - mutex_lock(lock); - ret = __fimc_pipeline_close(pipeline); + if (ref_count > 0) { + ret = __fimc_pipeline_close(pipeline); + if (!ret && fimc) + fimc_ctrls_delete(fimc->vid_cap.ctx); + } for (i = 0; i < IDX_MAX; i++) pipeline->subdevs[i] = NULL; - if (fimc) - fimc_ctrls_delete(fimc->vid_cap.ctx); - mutex_unlock(lock); - return ret; + } else if (ref_count > 0) { + /* + * Link activation. Enable power of pipeline elements only if + * the pipeline is already in use, i.e. its video node is open. + * Recreate the controls destroyed during the link deactivation. + */ + ret = __fimc_pipeline_open(pipeline, + source->entity, true); + if (!ret && fimc) + ret = fimc_capture_ctrls_create(fimc); } - /* - * Link activation. Enable power of pipeline elements only if the - * pipeline is already in use, i.e. its video node is opened. - * Recreate the controls destroyed during the link deactivation. - */ - mutex_lock(lock); - - ref_count = fimc ? fimc->vid_cap.refcnt : fimc_lite->ref_count; - if (ref_count > 0) - ret = __fimc_pipeline_open(pipeline, source->entity, true); - if (!ret && fimc) - ret = fimc_capture_ctrls_create(fimc); mutex_unlock(lock); return ret ? -EPIPE : ret; diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index e84703c314ce..1cb6d57987c6 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -276,7 +276,7 @@ static void s5p_mfc_handle_frame_new(struct s5p_mfc_ctx *ctx, unsigned int err) unsigned int frame_type; dspl_y_addr = s5p_mfc_hw_call(dev->mfc_ops, get_dspl_y_adr, dev); - frame_type = s5p_mfc_hw_call(dev->mfc_ops, get_dec_frame_type, dev); + frame_type = s5p_mfc_hw_call(dev->mfc_ops, get_disp_frame_type, ctx); /* If frame is same as previous then skip and do not dequeue */ if (frame_type == S5P_FIMV_DECODE_FRAME_SKIPPED) { diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c index 2356fd52a169..4f6b553c4b2d 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c @@ -232,6 +232,7 @@ static struct mfc_control controls[] = { .minimum = 0, .maximum = 1, .default_value = 0, + .step = 1, .menu_skip_mask = 0, }, { diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig index 19f3563c61da..5a79c333d45e 100644 --- a/drivers/media/rc/Kconfig +++ b/drivers/media/rc/Kconfig @@ -291,7 +291,7 @@ config IR_TTUSBIR config IR_RX51 tristate "Nokia N900 IR transmitter diode" - depends on OMAP_DM_TIMER && LIRC && !ARCH_MULTIPLATFORM + depends on OMAP_DM_TIMER && ARCH_OMAP2PLUS && LIRC && !ARCH_MULTIPLATFORM ---help--- Say Y or M here if you want to enable support for the IR transmitter diode built in the Nokia N900 (RX51) device. diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile index a9d355230e8e..768aaf62d5dc 100644 --- a/drivers/media/v4l2-core/Makefile +++ b/drivers/media/v4l2-core/Makefile @@ -10,7 +10,7 @@ ifeq ($(CONFIG_COMPAT),y) videodev-objs += v4l2-compat-ioctl32.o endif -obj-$(CONFIG_VIDEO_DEV) += videodev.o +obj-$(CONFIG_VIDEO_V4L2) += videodev.o obj-$(CONFIG_VIDEO_V4L2_INT_DEVICE) += v4l2-int-device.o obj-$(CONFIG_VIDEO_V4L2) += v4l2-common.o diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 45ea7185c003..642c6223fa6c 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -152,6 +152,20 @@ static void mei_me_intr_disable(struct mei_device *dev) } /** + * mei_me_hw_reset_release - release device from the reset + * + * @dev: the device structure + */ +static void mei_me_hw_reset_release(struct mei_device *dev) +{ + struct mei_me_hw *hw = to_me_hw(dev); + u32 hcsr = mei_hcsr_read(hw); + + hcsr |= H_IG; + hcsr &= ~H_RST; + mei_hcsr_set(hw, hcsr); +} +/** * mei_me_hw_reset - resets fw via mei csr register. * * @dev: the device structure @@ -169,18 +183,14 @@ static void mei_me_hw_reset(struct mei_device *dev, bool intr_enable) if (intr_enable) hcsr |= H_IE; else - hcsr &= ~H_IE; - - mei_hcsr_set(hw, hcsr); - - hcsr = mei_hcsr_read(hw) | H_IG; - hcsr &= ~H_RST; + hcsr |= ~H_IE; mei_hcsr_set(hw, hcsr); - hcsr = mei_hcsr_read(hw); + if (dev->dev_state == MEI_DEV_POWER_DOWN) + mei_me_hw_reset_release(dev); - dev_dbg(&dev->pdev->dev, "current HCSR = 0x%08x.\n", hcsr); + dev_dbg(&dev->pdev->dev, "current HCSR = 0x%08x.\n", mei_hcsr_read(hw)); } /** @@ -466,7 +476,8 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id) mutex_unlock(&dev->device_lock); return IRQ_HANDLED; } else { - dev_dbg(&dev->pdev->dev, "FW not ready.\n"); + dev_dbg(&dev->pdev->dev, "Reset Completed.\n"); + mei_me_hw_reset_release(dev); mutex_unlock(&dev->device_lock); return IRQ_HANDLED; } diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 6ec530168afb..356179991a2e 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -183,6 +183,24 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) mei_cl_all_write_clear(dev); } +void mei_stop(struct mei_device *dev) +{ + dev_dbg(&dev->pdev->dev, "stopping the device.\n"); + + mutex_lock(&dev->device_lock); + + cancel_delayed_work(&dev->timer_work); + + mei_wd_stop(dev); + + dev->dev_state = MEI_DEV_POWER_DOWN; + mei_reset(dev, 0); + + mutex_unlock(&dev->device_lock); + + flush_scheduled_work(); +} + diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index cb80166161f0..97873812e33b 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -381,6 +381,7 @@ static inline unsigned long mei_secs_to_jiffies(unsigned long sec) void mei_device_init(struct mei_device *dev); void mei_reset(struct mei_device *dev, int interrupts); int mei_hw_init(struct mei_device *dev); +void mei_stop(struct mei_device *dev); /* * MEI interrupt functions prototype diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index b40ec0601ab0..b8b5c9c3ad03 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -247,44 +247,14 @@ static void mei_remove(struct pci_dev *pdev) hw = to_me_hw(dev); - mutex_lock(&dev->device_lock); - - cancel_delayed_work(&dev->timer_work); - mei_wd_stop(dev); + dev_err(&pdev->dev, "stop\n"); + mei_stop(dev); mei_pdev = NULL; - if (dev->iamthif_cl.state == MEI_FILE_CONNECTED) { - dev->iamthif_cl.state = MEI_FILE_DISCONNECTING; - mei_cl_disconnect(&dev->iamthif_cl); - } - if (dev->wd_cl.state == MEI_FILE_CONNECTED) { - dev->wd_cl.state = MEI_FILE_DISCONNECTING; - mei_cl_disconnect(&dev->wd_cl); - } - - /* Unregistering watchdog device */ mei_watchdog_unregister(dev); - /* remove entry if already in list */ - dev_dbg(&pdev->dev, "list del iamthif and wd file list.\n"); - - if (dev->open_handle_count > 0) - dev->open_handle_count--; - mei_cl_unlink(&dev->wd_cl); - - if (dev->open_handle_count > 0) - dev->open_handle_count--; - mei_cl_unlink(&dev->iamthif_cl); - - dev->iamthif_current_cb = NULL; - dev->me_clients_num = 0; - - mutex_unlock(&dev->device_lock); - - flush_scheduled_work(); - /* disable interrupts */ mei_disable_interrupts(dev); @@ -308,28 +278,20 @@ static int mei_pci_suspend(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); struct mei_device *dev = pci_get_drvdata(pdev); - int err; if (!dev) return -ENODEV; - mutex_lock(&dev->device_lock); - cancel_delayed_work(&dev->timer_work); + dev_err(&pdev->dev, "suspend\n"); - /* Stop watchdog if exists */ - err = mei_wd_stop(dev); - /* Set new mei state */ - if (dev->dev_state == MEI_DEV_ENABLED || - dev->dev_state == MEI_DEV_RECOVERING_FROM_RESET) { - dev->dev_state = MEI_DEV_POWER_DOWN; - mei_reset(dev, 0); - } - mutex_unlock(&dev->device_lock); + mei_stop(dev); + + mei_disable_interrupts(dev); free_irq(pdev->irq, dev); pci_disable_msi(pdev); - return err; + return 0; } static int mei_pci_resume(struct device *device) diff --git a/drivers/misc/vmw_vmci/vmci_datagram.c b/drivers/misc/vmw_vmci/vmci_datagram.c index ed5c433cd493..f3cdd904fe4d 100644 --- a/drivers/misc/vmw_vmci/vmci_datagram.c +++ b/drivers/misc/vmw_vmci/vmci_datagram.c @@ -42,9 +42,11 @@ struct datagram_entry { struct delayed_datagram_info { struct datagram_entry *entry; - struct vmci_datagram msg; struct work_struct work; bool in_dg_host_queue; + /* msg and msg_payload must be together. */ + struct vmci_datagram msg; + u8 msg_payload[]; }; /* Number of in-flight host->host datagrams */ diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c index 63feb75cc8e0..9279a9174f84 100644 --- a/drivers/mtd/bcm47xxpart.c +++ b/drivers/mtd/bcm47xxpart.c @@ -19,6 +19,12 @@ /* 10 parts were found on sflash on Netgear WNDR4500 */ #define BCM47XXPART_MAX_PARTS 12 +/* + * Amount of bytes we read when analyzing each block of flash memory. + * Set it big enough to allow detecting partition and reading important data. + */ +#define BCM47XXPART_BYTES_TO_READ 0x404 + /* Magics */ #define BOARD_DATA_MAGIC 0x5246504D /* MPFR */ #define POT_MAGIC1 0x54544f50 /* POTT */ @@ -57,17 +63,15 @@ static int bcm47xxpart_parse(struct mtd_info *master, struct trx_header *trx; int trx_part = -1; int last_trx_part = -1; - int max_bytes_to_read = 0x8004; + int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, }; if (blocksize <= 0x10000) blocksize = 0x10000; - if (blocksize == 0x20000) - max_bytes_to_read = 0x18004; /* Alloc */ parts = kzalloc(sizeof(struct mtd_partition) * BCM47XXPART_MAX_PARTS, GFP_KERNEL); - buf = kzalloc(max_bytes_to_read, GFP_KERNEL); + buf = kzalloc(BCM47XXPART_BYTES_TO_READ, GFP_KERNEL); /* Parse block by block looking for magics */ for (offset = 0; offset <= master->size - blocksize; @@ -82,7 +86,7 @@ static int bcm47xxpart_parse(struct mtd_info *master, } /* Read beginning of the block */ - if (mtd_read(master, offset, max_bytes_to_read, + if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ, &bytes_read, (uint8_t *)buf) < 0) { pr_err("mtd_read error while parsing (offset: 0x%X)!\n", offset); @@ -96,20 +100,6 @@ static int bcm47xxpart_parse(struct mtd_info *master, continue; } - /* Standard NVRAM */ - if (buf[0x000 / 4] == NVRAM_HEADER || - buf[0x1000 / 4] == NVRAM_HEADER || - buf[0x8000 / 4] == NVRAM_HEADER || - (blocksize == 0x20000 && ( - buf[0x10000 / 4] == NVRAM_HEADER || - buf[0x11000 / 4] == NVRAM_HEADER || - buf[0x18000 / 4] == NVRAM_HEADER))) { - bcm47xxpart_add_part(&parts[curr_part++], "nvram", - offset, 0); - offset = rounddown(offset, blocksize); - continue; - } - /* * board_data starts with board_id which differs across boards, * but we can use 'MPFR' (hopefully) magic at 0x100 @@ -178,6 +168,30 @@ static int bcm47xxpart_parse(struct mtd_info *master, continue; } } + + /* Look for NVRAM at the end of the last block. */ + for (i = 0; i < ARRAY_SIZE(possible_nvram_sizes); i++) { + if (curr_part > BCM47XXPART_MAX_PARTS) { + pr_warn("Reached maximum number of partitions, scanning stopped!\n"); + break; + } + + offset = master->size - possible_nvram_sizes[i]; + if (mtd_read(master, offset, 0x4, &bytes_read, + (uint8_t *)buf) < 0) { + pr_err("mtd_read error while reading at offset 0x%X!\n", + offset); + continue; + } + + /* Standard NVRAM */ + if (buf[0] == NVRAM_HEADER) { + bcm47xxpart_add_part(&parts[curr_part++], "nvram", + master->size - blocksize, 0); + break; + } + } + kfree(buf); /* diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 43214151b882..42c63927609d 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1523,6 +1523,14 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, oobreadlen -= toread; } } + + if (chip->options & NAND_NEED_READRDY) { + /* Apply delay or wait for ready/busy pin */ + if (!chip->dev_ready) + udelay(chip->chip_delay); + else + nand_wait_ready(mtd); + } } else { memcpy(buf, chip->buffers->databuf + col, bytes); buf += bytes; @@ -1787,6 +1795,14 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, len = min(len, readlen); buf = nand_transfer_oob(chip, buf, ops, len); + if (chip->options & NAND_NEED_READRDY) { + /* Apply delay or wait for ready/busy pin */ + if (!chip->dev_ready) + udelay(chip->chip_delay); + else + nand_wait_ready(mtd); + } + readlen -= len; if (!readlen) break; diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c index e3aa2748a6e7..9c612388e5de 100644 --- a/drivers/mtd/nand/nand_ids.c +++ b/drivers/mtd/nand/nand_ids.c @@ -22,49 +22,51 @@ * 512 512 Byte page size */ struct nand_flash_dev nand_flash_ids[] = { +#define SP_OPTIONS NAND_NEED_READRDY +#define SP_OPTIONS16 (SP_OPTIONS | NAND_BUSWIDTH_16) #ifdef CONFIG_MTD_NAND_MUSEUM_IDS - {"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0}, - {"NAND 2MiB 5V 8-bit", 0x64, 256, 2, 0x1000, 0}, - {"NAND 4MiB 5V 8-bit", 0x6b, 512, 4, 0x2000, 0}, - {"NAND 1MiB 3,3V 8-bit", 0xe8, 256, 1, 0x1000, 0}, - {"NAND 1MiB 3,3V 8-bit", 0xec, 256, 1, 0x1000, 0}, - {"NAND 2MiB 3,3V 8-bit", 0xea, 256, 2, 0x1000, 0}, - {"NAND 4MiB 3,3V 8-bit", 0xd5, 512, 4, 0x2000, 0}, - {"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0}, - {"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0}, - {"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0}, - - {"NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, 0}, - {"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0}, - {"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16}, - {"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16}, + {"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, SP_OPTIONS}, + {"NAND 2MiB 5V 8-bit", 0x64, 256, 2, 0x1000, SP_OPTIONS}, + {"NAND 4MiB 5V 8-bit", 0x6b, 512, 4, 0x2000, SP_OPTIONS}, + {"NAND 1MiB 3,3V 8-bit", 0xe8, 256, 1, 0x1000, SP_OPTIONS}, + {"NAND 1MiB 3,3V 8-bit", 0xec, 256, 1, 0x1000, SP_OPTIONS}, + {"NAND 2MiB 3,3V 8-bit", 0xea, 256, 2, 0x1000, SP_OPTIONS}, + {"NAND 4MiB 3,3V 8-bit", 0xd5, 512, 4, 0x2000, SP_OPTIONS}, + {"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, SP_OPTIONS}, + {"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, SP_OPTIONS}, + {"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, SP_OPTIONS}, + + {"NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, SP_OPTIONS}, + {"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, SP_OPTIONS}, + {"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, SP_OPTIONS16}, + {"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, SP_OPTIONS16}, #endif - {"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0}, - {"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0}, - {"NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16}, - {"NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16}, - - {"NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, 0}, - {"NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, 0}, - {"NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16}, - {"NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16}, - - {"NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, 0}, - {"NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, 0}, - {"NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16}, - {"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16}, - - {"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0}, - {"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0}, - {"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0}, - {"NAND 128MiB 1,8V 16-bit", 0x72, 512, 128, 0x4000, NAND_BUSWIDTH_16}, - {"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16}, - {"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16}, - {"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16}, - - {"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0}, + {"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, SP_OPTIONS}, + {"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, SP_OPTIONS}, + {"NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, SP_OPTIONS16}, + {"NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, SP_OPTIONS16}, + + {"NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, SP_OPTIONS}, + {"NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, SP_OPTIONS}, + {"NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, SP_OPTIONS16}, + {"NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, SP_OPTIONS16}, + + {"NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, SP_OPTIONS}, + {"NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, SP_OPTIONS}, + {"NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, SP_OPTIONS16}, + {"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, SP_OPTIONS16}, + + {"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, SP_OPTIONS}, + {"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, SP_OPTIONS}, + {"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, SP_OPTIONS}, + {"NAND 128MiB 1,8V 16-bit", 0x72, 512, 128, 0x4000, SP_OPTIONS16}, + {"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, SP_OPTIONS16}, + {"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, SP_OPTIONS16}, + {"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, SP_OPTIONS16}, + + {"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, SP_OPTIONS}, /* * These are the new chips with large page size. The pagesize and the diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 8b4e96e01d6c..6bbd90e1123c 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1746,6 +1746,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) bond_compute_features(bond); + bond_update_speed_duplex(new_slave); + read_lock(&bond->lock); new_slave->last_arp_rx = jiffies - @@ -1798,8 +1800,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) new_slave->link == BOND_LINK_DOWN ? "DOWN" : (new_slave->link == BOND_LINK_UP ? "UP" : "BACK")); - bond_update_speed_duplex(new_slave); - if (USES_PRIMARY(bond->params.mode) && bond->params.primary[0]) { /* if there is a primary slave, remember it */ if (strcmp(bond->params.primary, new_slave->dev->name) == 0) { @@ -2374,8 +2374,6 @@ static void bond_miimon_commit(struct bonding *bond) bond_set_backup_slave(slave); } - bond_update_speed_duplex(slave); - pr_info("%s: link status definitely up for interface %s, %u Mbps %s duplex.\n", bond->dev->name, slave->dev->name, slave->speed, slave->duplex ? "full" : "half"); diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 1c9e09fbdff8..db103e03ba05 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -183,6 +183,11 @@ int bond_create_slave_symlinks(struct net_device *master, sprintf(linkname, "slave_%s", slave->name); ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), linkname); + + /* free the master link created earlier in case of error */ + if (ret) + sysfs_remove_link(&(slave->dev.kobj), "master"); + return ret; } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index a923bc4d5a1f..4046f97378c2 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -2760,6 +2760,7 @@ load_error2: bp->port.pmf = 0; load_error1: bnx2x_napi_disable(bp); + bnx2x_del_all_napi(bp); /* clear pf_load status, as it was already set */ if (IS_PF(bp)) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c index 568205436a15..91ecd6a00d05 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c @@ -2139,12 +2139,12 @@ static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap) break; default: BNX2X_ERR("Non valid capability ID\n"); - rval = -EINVAL; + rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); - rval = -EINVAL; + rval = 1; } DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap); @@ -2170,12 +2170,12 @@ static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num) break; default: BNX2X_ERR("Non valid TC-ID\n"); - rval = -EINVAL; + rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); - rval = -EINVAL; + rval = 1; } return rval; @@ -2188,7 +2188,7 @@ static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num) return -EINVAL; } -static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev) +static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled); @@ -2390,12 +2390,12 @@ static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid, break; default: BNX2X_ERR("Non valid featrue-ID\n"); - rval = -EINVAL; + rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); - rval = -EINVAL; + rval = 1; } return rval; @@ -2431,12 +2431,12 @@ static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid, break; default: BNX2X_ERR("Non valid featrue-ID\n"); - rval = -EINVAL; + rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "dcbnl call not valid\n"); - rval = -EINVAL; + rval = 1; } return rval; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h index 364e37ecbc5c..198f6f1c9ad5 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h @@ -459,8 +459,9 @@ struct bnx2x_fw_port_stats_old { #define UPDATE_QSTAT(s, t) \ do { \ - qstats->t##_hi = qstats_old->t##_hi + le32_to_cpu(s.hi); \ qstats->t##_lo = qstats_old->t##_lo + le32_to_cpu(s.lo); \ + qstats->t##_hi = qstats_old->t##_hi + le32_to_cpu(s.hi) \ + + ((qstats->t##_lo < qstats_old->t##_lo) ? 1 : 0); \ } while (0) #define UPDATE_QSTAT_OLD(f) \ diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 93729f942358..67d2663b3974 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -4130,6 +4130,14 @@ static void tg3_phy_copper_begin(struct tg3 *tp) tp->link_config.active_speed = tp->link_config.speed; tp->link_config.active_duplex = tp->link_config.duplex; + if (tg3_asic_rev(tp) == ASIC_REV_5714) { + /* With autoneg disabled, 5715 only links up when the + * advertisement register has the configured speed + * enabled. + */ + tg3_writephy(tp, MII_ADVERTISE, ADVERTISE_ALL); + } + bmcr = 0; switch (tp->link_config.speed) { default: diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 4ce62031f62f..8049268ce0f2 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -497,8 +497,9 @@ int t4_memory_write(struct adapter *adap, int mtype, u32 addr, u32 len, } #define EEPROM_STAT_ADDR 0x7bfc -#define VPD_BASE 0 #define VPD_LEN 512 +#define VPD_BASE 0x400 +#define VPD_BASE_OLD 0 /** * t4_seeprom_wp - enable/disable EEPROM write protection @@ -524,7 +525,7 @@ int t4_seeprom_wp(struct adapter *adapter, bool enable) int get_vpd_params(struct adapter *adapter, struct vpd_params *p) { u32 cclk_param, cclk_val; - int i, ret; + int i, ret, addr; int ec, sn; u8 *vpd, csum; unsigned int vpdr_len, kw_offset, id_len; @@ -533,7 +534,12 @@ int get_vpd_params(struct adapter *adapter, struct vpd_params *p) if (!vpd) return -ENOMEM; - ret = pci_read_vpd(adapter->pdev, VPD_BASE, VPD_LEN, vpd); + ret = pci_read_vpd(adapter->pdev, VPD_BASE, sizeof(u32), vpd); + if (ret < 0) + goto out; + addr = *vpd == 0x82 ? VPD_BASE : VPD_BASE_OLD; + + ret = pci_read_vpd(adapter->pdev, addr, VPD_LEN, vpd); if (ret < 0) goto out; diff --git a/drivers/net/ethernet/dec/tulip/Kconfig b/drivers/net/ethernet/dec/tulip/Kconfig index 0c37fb2cc867..1df33c799c00 100644 --- a/drivers/net/ethernet/dec/tulip/Kconfig +++ b/drivers/net/ethernet/dec/tulip/Kconfig @@ -108,6 +108,7 @@ config TULIP_DM910X config DE4X5 tristate "Generic DECchip & DIGITAL EtherWORKS PCI/EISA" depends on (PCI || EISA) + depends on VIRT_TO_BUS || ALPHA || PPC || SPARC select CRC32 ---help--- This is support for the DIGITAL series of PCI/EISA Ethernet cards. diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index 069a155d16ed..911d0253dbb2 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -934,24 +934,28 @@ static void fec_enet_adjust_link(struct net_device *ndev) goto spin_unlock; } - /* Duplex link change */ if (phy_dev->link) { - if (fep->full_duplex != phy_dev->duplex) { - fec_restart(ndev, phy_dev->duplex); - /* prevent unnecessary second fec_restart() below */ + if (!fep->link) { fep->link = phy_dev->link; status_change = 1; } - } - /* Link on or off change */ - if (phy_dev->link != fep->link) { - fep->link = phy_dev->link; - if (phy_dev->link) + if (fep->full_duplex != phy_dev->duplex) + status_change = 1; + + if (phy_dev->speed != fep->speed) { + fep->speed = phy_dev->speed; + status_change = 1; + } + + /* if any of the above changed restart the FEC */ + if (status_change) fec_restart(ndev, phy_dev->duplex); - else + } else { + if (fep->link) { fec_stop(ndev); - status_change = 1; + status_change = 1; + } } spin_unlock: @@ -1328,7 +1332,7 @@ static int fec_enet_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd) static void fec_enet_free_buffers(struct net_device *ndev) { struct fec_enet_private *fep = netdev_priv(ndev); - int i; + unsigned int i; struct sk_buff *skb; struct bufdesc *bdp; @@ -1352,7 +1356,7 @@ static void fec_enet_free_buffers(struct net_device *ndev) static int fec_enet_alloc_buffers(struct net_device *ndev) { struct fec_enet_private *fep = netdev_priv(ndev); - int i; + unsigned int i; struct sk_buff *skb; struct bufdesc *bdp; @@ -1437,6 +1441,7 @@ fec_enet_close(struct net_device *ndev) struct fec_enet_private *fep = netdev_priv(ndev); /* Don't know what to do yet. */ + napi_disable(&fep->napi); fep->opened = 0; netif_stop_queue(ndev); fec_stop(ndev); @@ -1593,7 +1598,7 @@ static int fec_enet_init(struct net_device *ndev) struct fec_enet_private *fep = netdev_priv(ndev); struct bufdesc *cbd_base; struct bufdesc *bdp; - int i; + unsigned int i; /* Allocate memory for buffer descriptors. */ cbd_base = dma_alloc_coherent(NULL, PAGE_SIZE, &fep->bd_dma, diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index f5390071efd0..eb4372962839 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -240,6 +240,7 @@ struct fec_enet_private { phy_interface_t phy_interface; int link; int full_duplex; + int speed; struct completion mdio_done; int irq[FEC_IRQ_NUM]; int bufdesc_ex; diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c index 1f17ca0f2201..0d8df400a479 100644 --- a/drivers/net/ethernet/freescale/fec_ptp.c +++ b/drivers/net/ethernet/freescale/fec_ptp.c @@ -128,6 +128,7 @@ void fec_ptp_start_cyclecounter(struct net_device *ndev) spin_unlock_irqrestore(&fep->tmreg_lock, flags); } +EXPORT_SYMBOL(fec_ptp_start_cyclecounter); /** * fec_ptp_adjfreq - adjust ptp cycle frequency @@ -318,6 +319,7 @@ int fec_ptp_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd) return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ? -EFAULT : 0; } +EXPORT_SYMBOL(fec_ptp_ioctl); /** * fec_time_keep - call timecounter_read every second to avoid timer overrun @@ -383,3 +385,4 @@ void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev) pr_info("registered PHC device on %s\n", ndev->name); } } +EXPORT_SYMBOL(fec_ptp_init); diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index b64542acfa34..12b1d8480808 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -1818,27 +1818,32 @@ out: **/ void igb_vmdq_set_anti_spoofing_pf(struct e1000_hw *hw, bool enable, int pf) { - u32 dtxswc; + u32 reg_val, reg_offset; switch (hw->mac.type) { case e1000_82576: + reg_offset = E1000_DTXSWC; + break; case e1000_i350: - dtxswc = rd32(E1000_DTXSWC); - if (enable) { - dtxswc |= (E1000_DTXSWC_MAC_SPOOF_MASK | - E1000_DTXSWC_VLAN_SPOOF_MASK); - /* The PF can spoof - it has to in order to - * support emulation mode NICs */ - dtxswc ^= (1 << pf | 1 << (pf + MAX_NUM_VFS)); - } else { - dtxswc &= ~(E1000_DTXSWC_MAC_SPOOF_MASK | - E1000_DTXSWC_VLAN_SPOOF_MASK); - } - wr32(E1000_DTXSWC, dtxswc); + reg_offset = E1000_TXSWC; break; default: - break; + return; + } + + reg_val = rd32(reg_offset); + if (enable) { + reg_val |= (E1000_DTXSWC_MAC_SPOOF_MASK | + E1000_DTXSWC_VLAN_SPOOF_MASK); + /* The PF can spoof - it has to in order to + * support emulation mode NICs + */ + reg_val ^= (1 << pf | 1 << (pf + MAX_NUM_VFS)); + } else { + reg_val &= ~(E1000_DTXSWC_MAC_SPOOF_MASK | + E1000_DTXSWC_VLAN_SPOOF_MASK); } + wr32(reg_offset, reg_val); } /** diff --git a/drivers/net/ethernet/intel/igb/igb_hwmon.c b/drivers/net/ethernet/intel/igb/igb_hwmon.c index 4623502054d5..0478a1abe541 100644 --- a/drivers/net/ethernet/intel/igb/igb_hwmon.c +++ b/drivers/net/ethernet/intel/igb/igb_hwmon.c @@ -39,7 +39,7 @@ #include <linux/pci.h> #ifdef CONFIG_IGB_HWMON -struct i2c_board_info i350_sensor_info = { +static struct i2c_board_info i350_sensor_info = { I2C_BOARD_INFO("i350bb", (0Xf8 >> 1)), }; diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 4dbd62968c7a..8496adfc6a68 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -2542,8 +2542,8 @@ static void igb_probe_vfs(struct igb_adapter *adapter) if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211)) return; - igb_enable_sriov(pdev, max_vfs); pci_sriov_set_totalvfs(pdev, 7); + igb_enable_sriov(pdev, max_vfs); #endif /* CONFIG_PCI_IOV */ } @@ -2652,7 +2652,7 @@ static int igb_sw_init(struct igb_adapter *adapter) if (max_vfs > 7) { dev_warn(&pdev->dev, "Maximum of 7 VFs per PF, using max\n"); - adapter->vfs_allocated_count = 7; + max_vfs = adapter->vfs_allocated_count = 7; } else adapter->vfs_allocated_count = max_vfs; if (adapter->vfs_allocated_count) diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c index 0987822359f0..0a237507ee85 100644 --- a/drivers/net/ethernet/intel/igb/igb_ptp.c +++ b/drivers/net/ethernet/intel/igb/igb_ptp.c @@ -740,7 +740,7 @@ void igb_ptp_init(struct igb_adapter *adapter) case e1000_82576: snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr); adapter->ptp_caps.owner = THIS_MODULE; - adapter->ptp_caps.max_adj = 1000000000; + adapter->ptp_caps.max_adj = 999999881; adapter->ptp_caps.n_ext_ts = 0; adapter->ptp_caps.pps = 0; adapter->ptp_caps.adjfreq = igb_ptp_adjfreq_82576; diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index c3db6cd69b68..2b6cb5ca48ee 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -944,9 +944,17 @@ free_queue_irqs: free_irq(adapter->msix_entries[vector].vector, adapter->q_vector[vector]); } - pci_disable_msix(adapter->pdev); - kfree(adapter->msix_entries); - adapter->msix_entries = NULL; + /* This failure is non-recoverable - it indicates the system is + * out of MSIX vector resources and the VF driver cannot run + * without them. Set the number of msix vectors to zero + * indicating that not enough can be allocated. The error + * will be returned to the user indicating device open failed. + * Any further attempts to force the driver to open will also + * fail. The only way to recover is to unload the driver and + * reload it again. If the system has recovered some MSIX + * vectors then it may succeed. + */ + adapter->num_msix_vectors = 0; return err; } @@ -2572,6 +2580,15 @@ static int ixgbevf_open(struct net_device *netdev) struct ixgbe_hw *hw = &adapter->hw; int err; + /* A previous failure to open the device because of a lack of + * available MSIX vector resources may have reset the number + * of msix vectors variable to zero. The only way to recover + * is to unload/reload the driver and hope that the system has + * been able to recover some MSIX vector resources. + */ + if (!adapter->num_msix_vectors) + return -ENOMEM; + /* disallow open during test */ if (test_bit(__IXGBEVF_TESTING, &adapter->state)) return -EBUSY; @@ -2628,7 +2645,6 @@ static int ixgbevf_open(struct net_device *netdev) err_req_irq: ixgbevf_down(adapter); - ixgbevf_free_irq(adapter); err_setup_rx: ixgbevf_free_all_rx_resources(adapter); err_setup_tx: diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c index 6a2127489af7..bfdb06860397 100644 --- a/drivers/net/ethernet/lantiq_etop.c +++ b/drivers/net/ethernet/lantiq_etop.c @@ -769,7 +769,7 @@ ltq_etop_probe(struct platform_device *pdev) return 0; err_free: - kfree(dev); + free_netdev(dev); err_out: return err; } diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 995d4b6d5c1e..f278b10ef714 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1637,6 +1637,17 @@ void mlx4_en_stop_port(struct net_device *dev, int detach) /* Flush multicast filter */ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); + /* Remove flow steering rules for the port*/ + if (mdev->dev->caps.steering_mode == + MLX4_STEERING_MODE_DEVICE_MANAGED) { + ASSERT_RTNL(); + list_for_each_entry_safe(flow, tmp_flow, + &priv->ethtool_list, list) { + mlx4_flow_detach(mdev->dev, flow->id); + list_del(&flow->list); + } + } + mlx4_en_destroy_drop_qp(priv); /* Free TX Rings */ @@ -1657,17 +1668,6 @@ void mlx4_en_stop_port(struct net_device *dev, int detach) if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN)) mdev->mac_removed[priv->port] = 1; - /* Remove flow steering rules for the port*/ - if (mdev->dev->caps.steering_mode == - MLX4_STEERING_MODE_DEVICE_MANAGED) { - ASSERT_RTNL(); - list_for_each_entry_safe(flow, tmp_flow, - &priv->ethtool_list, list) { - mlx4_flow_detach(mdev->dev, flow->id); - list_del(&flow->list); - } - } - /* Free RX Rings */ for (i = 0; i < priv->rx_ring_num; i++) { mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 251ae2f93116..8e3123a1df88 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -771,7 +771,7 @@ int mlx4_MAP_EQ_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_slave_event_eq_info *event_eq = priv->mfunc.master.slave_state[slave].event_eq; u32 in_modifier = vhcr->in_modifier; - u32 eqn = in_modifier & 0x1FF; + u32 eqn = in_modifier & 0x3FF; u64 in_param = vhcr->in_param; int err = 0; int i; diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 2995687f1aee..1391b52f443a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -99,6 +99,7 @@ struct res_qp { struct list_head mcg_list; spinlock_t mcg_spl; int local_qpn; + atomic_t ref_count; }; enum res_mtt_states { @@ -197,6 +198,7 @@ enum res_fs_rule_states { struct res_fs_rule { struct res_common com; + int qpn; }; static void *res_tracker_lookup(struct rb_root *root, u64 res_id) @@ -355,7 +357,7 @@ static int mpt_mask(struct mlx4_dev *dev) return dev->caps.num_mpts - 1; } -static void *find_res(struct mlx4_dev *dev, int res_id, +static void *find_res(struct mlx4_dev *dev, u64 res_id, enum mlx4_resource type) { struct mlx4_priv *priv = mlx4_priv(dev); @@ -447,6 +449,7 @@ static struct res_common *alloc_qp_tr(int id) ret->local_qpn = id; INIT_LIST_HEAD(&ret->mcg_list); spin_lock_init(&ret->mcg_spl); + atomic_set(&ret->ref_count, 0); return &ret->com; } @@ -554,7 +557,7 @@ static struct res_common *alloc_xrcdn_tr(int id) return &ret->com; } -static struct res_common *alloc_fs_rule_tr(u64 id) +static struct res_common *alloc_fs_rule_tr(u64 id, int qpn) { struct res_fs_rule *ret; @@ -564,7 +567,7 @@ static struct res_common *alloc_fs_rule_tr(u64 id) ret->com.res_id = id; ret->com.state = RES_FS_RULE_ALLOCATED; - + ret->qpn = qpn; return &ret->com; } @@ -602,7 +605,7 @@ static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave, ret = alloc_xrcdn_tr(id); break; case RES_FS_RULE: - ret = alloc_fs_rule_tr(id); + ret = alloc_fs_rule_tr(id, extra); break; default: return NULL; @@ -671,10 +674,14 @@ undo: static int remove_qp_ok(struct res_qp *res) { - if (res->com.state == RES_QP_BUSY) + if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) || + !list_empty(&res->mcg_list)) { + pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n", + res->com.state, atomic_read(&res->ref_count)); return -EBUSY; - else if (res->com.state != RES_QP_RESERVED) + } else if (res->com.state != RES_QP_RESERVED) { return -EPERM; + } return 0; } @@ -3124,6 +3131,7 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC]; int err; int qpn; + struct res_qp *rqp; struct mlx4_net_trans_rule_hw_ctrl *ctrl; struct _rule_hw *rule_header; int header_id; @@ -3134,7 +3142,7 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; qpn = be32_to_cpu(ctrl->qpn) & 0xffffff; - err = get_res(dev, slave, qpn, RES_QP, NULL); + err = get_res(dev, slave, qpn, RES_QP, &rqp); if (err) { pr_err("Steering rule with qpn 0x%x rejected.\n", qpn); return err; @@ -3175,14 +3183,16 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, if (err) goto err_put; - err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, 0); + err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn); if (err) { mlx4_err(dev, "Fail to add flow steering resources.\n "); /* detach rule*/ mlx4_cmd(dev, vhcr->out_param, 0, 0, MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); + goto err_put; } + atomic_inc(&rqp->ref_count); err_put: put_res(dev, slave, qpn, RES_QP); return err; @@ -3195,20 +3205,35 @@ int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_cmd_info *cmd) { int err; + struct res_qp *rqp; + struct res_fs_rule *rrule; if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) return -EOPNOTSUPP; + err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule); + if (err) + return err; + /* Release the rule form busy state before removal */ + put_res(dev, slave, vhcr->in_param, RES_FS_RULE); + err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp); + if (err) + return err; + err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0); if (err) { mlx4_err(dev, "Fail to remove flow steering resources.\n "); - return err; + goto out; } err = mlx4_cmd(dev, vhcr->in_param, 0, 0, MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); + if (!err) + atomic_dec(&rqp->ref_count); +out: + put_res(dev, slave, rrule->qpn, RES_QP); return err; } @@ -3806,6 +3831,7 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); /*VLAN*/ rem_slave_macs(dev, slave); + rem_slave_fs_rule(dev, slave); rem_slave_qps(dev, slave); rem_slave_srqs(dev, slave); rem_slave_cqs(dev, slave); @@ -3814,6 +3840,5 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) rem_slave_mtts(dev, slave); rem_slave_counters(dev, slave); rem_slave_xrcdns(dev, slave); - rem_slave_fs_rule(dev, slave); mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); } diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c index c4122c86f829..efa29b712d5f 100644 --- a/drivers/net/ethernet/nxp/lpc_eth.c +++ b/drivers/net/ethernet/nxp/lpc_eth.c @@ -1472,7 +1472,8 @@ static int lpc_eth_drv_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, ndev); - if (lpc_mii_init(pldat) != 0) + ret = lpc_mii_init(pldat); + if (ret) goto err_out_unregister_netdev; netdev_info(ndev, "LPC mac at 0x%08x irq %d\n", diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index 39ab4d09faaa..73ce7dd6b954 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -1726,9 +1726,9 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter, skb->protocol = eth_type_trans(skb, netdev); if (tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK) - skb->ip_summed = CHECKSUM_NONE; - else skb->ip_summed = CHECKSUM_UNNECESSARY; + else + skb->ip_summed = CHECKSUM_NONE; napi_gro_receive(&adapter->napi, skb); (*work_done)++; diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 33e96176e4d8..bf5e3cf97c4d 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -2220,6 +2220,7 @@ static void sh_eth_tsu_init(struct sh_eth_private *mdp) /* MDIO bus release function */ static int sh_mdio_release(struct net_device *ndev) { + struct sh_eth_private *mdp = netdev_priv(ndev); struct mii_bus *bus = dev_get_drvdata(&ndev->dev); /* unregister mdio bus */ @@ -2234,6 +2235,9 @@ static int sh_mdio_release(struct net_device *ndev) /* free bitbang info */ free_mdio_bitbang(bus); + /* free bitbang memory */ + kfree(mdp->bitbang); + return 0; } @@ -2262,6 +2266,7 @@ static int sh_mdio_init(struct net_device *ndev, int id, bitbang->ctrl.ops = &bb_ops; /* MII controller setting */ + mdp->bitbang = bitbang; mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl); if (!mdp->mii_bus) { ret = -ENOMEM; @@ -2441,6 +2446,11 @@ static int sh_eth_drv_probe(struct platform_device *pdev) } mdp->tsu_addr = ioremap(rtsu->start, resource_size(rtsu)); + if (mdp->tsu_addr == NULL) { + ret = -ENOMEM; + dev_err(&pdev->dev, "TSU ioremap failed.\n"); + goto out_release; + } mdp->port = devno % 2; ndev->features = NETIF_F_HW_VLAN_FILTER; } diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index bae84fd2e73a..e6655678458e 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -705,6 +705,7 @@ struct sh_eth_private { const u16 *reg_offset; void __iomem *addr; void __iomem *tsu_addr; + struct bb_info *bitbang; u32 num_rx_ring; u32 num_tx_ring; dma_addr_t rx_desc_dma; diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c index 0ad790cc473c..eaa8e874a3cb 100644 --- a/drivers/net/ethernet/sfc/nic.c +++ b/drivers/net/ethernet/sfc/nic.c @@ -376,7 +376,8 @@ efx_may_push_tx_desc(struct efx_tx_queue *tx_queue, unsigned int write_count) return false; tx_queue->empty_read_count = 0; - return ((empty_read_count ^ write_count) & ~EFX_EMPTY_COUNT_VALID) == 0; + return ((empty_read_count ^ write_count) & ~EFX_EMPTY_COUNT_VALID) == 0 + && tx_queue->write_count - write_count == 1; } /* For each entry inserted into the software descriptor ring, create a diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 01ffbc486982..df32a090d08e 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -905,7 +905,7 @@ static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb, /* If there is no more tx desc left free then we need to * tell the kernel to stop sending us tx frames. */ - if (unlikely(cpdma_check_free_tx_desc(priv->txch))) + if (unlikely(!cpdma_check_free_tx_desc(priv->txch))) netif_stop_queue(ndev); return NETDEV_TX_OK; @@ -1364,7 +1364,7 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, struct platform_device *mdio; parp = of_get_property(slave_node, "phy_id", &lenp); - if ((parp == NULL) && (lenp != (sizeof(void *) * 2))) { + if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) { pr_err("Missing slave[%d] phy_id property\n", i); ret = -EINVAL; goto error_ret; diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 52c05366599a..ae1b77aa199f 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1102,7 +1102,7 @@ static int emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev) /* If there is no more tx desc left free then we need to * tell the kernel to stop sending us tx frames. */ - if (unlikely(cpdma_check_free_tx_desc(priv->txchan))) + if (unlikely(!cpdma_check_free_tx_desc(priv->txchan))) netif_stop_queue(ndev); return NETDEV_TX_OK; diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index 37add21a3d7d..59ac143dec25 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -666,6 +666,7 @@ static int netconsole_netdev_event(struct notifier_block *this, goto done; spin_lock_irqsave(&target_list_lock, flags); +restart: list_for_each_entry(nt, &target_list, list) { netconsole_target_get(nt); if (nt->np.dev == dev) { @@ -678,15 +679,17 @@ static int netconsole_netdev_event(struct notifier_block *this, case NETDEV_UNREGISTER: /* * rtnl_lock already held + * we might sleep in __netpoll_cleanup() */ - if (nt->np.dev) { - __netpoll_cleanup(&nt->np); - dev_put(nt->np.dev); - nt->np.dev = NULL; - } + spin_unlock_irqrestore(&target_list_lock, flags); + __netpoll_cleanup(&nt->np); + spin_lock_irqsave(&target_list_lock, flags); + dev_put(nt->np.dev); + nt->np.dev = NULL; nt->enabled = 0; stopped = true; - break; + netconsole_target_put(nt); + goto restart; } } netconsole_target_put(nt); diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index 3b6e9b83342d..7c769d8e25ad 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig @@ -268,7 +268,7 @@ config USB_NET_SMSC75XX select CRC16 select CRC32 help - This option adds support for SMSC LAN95XX based USB 2.0 + This option adds support for SMSC LAN75XX based USB 2.0 Gigabit Ethernet adapters. config USB_NET_SMSC95XX diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 248d2dc765a5..673e3624713e 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -68,18 +68,9 @@ static int cdc_mbim_bind(struct usbnet *dev, struct usb_interface *intf) struct cdc_ncm_ctx *ctx; struct usb_driver *subdriver = ERR_PTR(-ENODEV); int ret = -ENODEV; - u8 data_altsetting = CDC_NCM_DATA_ALTSETTING_NCM; + u8 data_altsetting = cdc_ncm_select_altsetting(dev, intf); struct cdc_mbim_state *info = (void *)&dev->data; - /* see if interface supports MBIM alternate setting */ - if (intf->num_altsetting == 2) { - if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) - usb_set_interface(dev->udev, - intf->cur_altsetting->desc.bInterfaceNumber, - CDC_NCM_COMM_ALTSETTING_MBIM); - data_altsetting = CDC_NCM_DATA_ALTSETTING_MBIM; - } - /* Probably NCM, defer for cdc_ncm_bind */ if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) goto err; @@ -332,6 +323,11 @@ static int cdc_mbim_suspend(struct usb_interface *intf, pm_message_t message) goto error; } + /* + * Both usbnet_suspend() and subdriver->suspend() MUST return 0 + * in system sleep context, otherwise, the resume callback has + * to recover device from previous suspend failure. + */ ret = usbnet_suspend(intf, message); if (ret < 0) goto error; diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 61b74a2b89ac..4709fa3497cf 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -55,6 +55,14 @@ #define DRIVER_VERSION "14-Mar-2012" +#if IS_ENABLED(CONFIG_USB_NET_CDC_MBIM) +static bool prefer_mbim = true; +#else +static bool prefer_mbim; +#endif +module_param(prefer_mbim, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(prefer_mbim, "Prefer MBIM setting on dual NCM/MBIM functions"); + static void cdc_ncm_txpath_bh(unsigned long param); static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx); static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer); @@ -550,9 +558,12 @@ void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf) } EXPORT_SYMBOL_GPL(cdc_ncm_unbind); -static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) +/* Select the MBIM altsetting iff it is preferred and available, + * returning the number of the corresponding data interface altsetting + */ +u8 cdc_ncm_select_altsetting(struct usbnet *dev, struct usb_interface *intf) { - int ret; + struct usb_host_interface *alt; /* The MBIM spec defines a NCM compatible default altsetting, * which we may have matched: @@ -568,23 +579,27 @@ static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) * endpoint descriptors, shall be constructed according to * the rules given in section 6 (USB Device Model) of this * specification." - * - * Do not bind to such interfaces, allowing cdc_mbim to handle - * them */ -#if IS_ENABLED(CONFIG_USB_NET_CDC_MBIM) - if ((intf->num_altsetting == 2) && - !usb_set_interface(dev->udev, - intf->cur_altsetting->desc.bInterfaceNumber, - CDC_NCM_COMM_ALTSETTING_MBIM)) { - if (cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) - return -ENODEV; - else - usb_set_interface(dev->udev, - intf->cur_altsetting->desc.bInterfaceNumber, - CDC_NCM_COMM_ALTSETTING_NCM); + if (prefer_mbim && intf->num_altsetting == 2) { + alt = usb_altnum_to_altsetting(intf, CDC_NCM_COMM_ALTSETTING_MBIM); + if (alt && cdc_ncm_comm_intf_is_mbim(alt) && + !usb_set_interface(dev->udev, + intf->cur_altsetting->desc.bInterfaceNumber, + CDC_NCM_COMM_ALTSETTING_MBIM)) + return CDC_NCM_DATA_ALTSETTING_MBIM; } -#endif + return CDC_NCM_DATA_ALTSETTING_NCM; +} +EXPORT_SYMBOL_GPL(cdc_ncm_select_altsetting); + +static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int ret; + + /* MBIM backwards compatible function? */ + cdc_ncm_select_altsetting(dev, intf); + if (cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) + return -ENODEV; /* NCM data altsetting is always 1 */ ret = cdc_ncm_bind_common(dev, intf, 1); diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index efb5c7c33a28..bdceb7411de3 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -139,16 +139,9 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf) BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < sizeof(struct qmi_wwan_state))); - /* control and data is shared? */ - if (intf->cur_altsetting->desc.bNumEndpoints == 3) { - info->control = intf; - info->data = intf; - goto shared; - } - - /* else require a single interrupt status endpoint on control intf */ - if (intf->cur_altsetting->desc.bNumEndpoints != 1) - goto err; + /* set up initial state */ + info->control = intf; + info->data = intf; /* and a number of CDC descriptors */ while (len > 3) { @@ -207,25 +200,14 @@ next_desc: buf += h->bLength; } - /* did we find all the required ones? */ - if (!(found & (1 << USB_CDC_HEADER_TYPE)) || - !(found & (1 << USB_CDC_UNION_TYPE))) { - dev_err(&intf->dev, "CDC functional descriptors missing\n"); - goto err; - } - - /* verify CDC Union */ - if (desc->bInterfaceNumber != cdc_union->bMasterInterface0) { - dev_err(&intf->dev, "bogus CDC Union: master=%u\n", cdc_union->bMasterInterface0); - goto err; - } - - /* need to save these for unbind */ - info->control = intf; - info->data = usb_ifnum_to_if(dev->udev, cdc_union->bSlaveInterface0); - if (!info->data) { - dev_err(&intf->dev, "bogus CDC Union: slave=%u\n", cdc_union->bSlaveInterface0); - goto err; + /* Use separate control and data interfaces if we found a CDC Union */ + if (cdc_union) { + info->data = usb_ifnum_to_if(dev->udev, cdc_union->bSlaveInterface0); + if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 || !info->data) { + dev_err(&intf->dev, "bogus CDC Union: master=%u, slave=%u\n", + cdc_union->bMasterInterface0, cdc_union->bSlaveInterface0); + goto err; + } } /* errors aren't fatal - we can live with the dynamic address */ @@ -235,11 +217,12 @@ next_desc: } /* claim data interface and set it up */ - status = usb_driver_claim_interface(driver, info->data, dev); - if (status < 0) - goto err; + if (info->control != info->data) { + status = usb_driver_claim_interface(driver, info->data, dev); + if (status < 0) + goto err; + } -shared: status = qmi_wwan_register_subdriver(dev); if (status < 0 && info->control != info->data) { usb_set_intfdata(info->data, NULL); @@ -288,6 +271,11 @@ static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message) struct qmi_wwan_state *info = (void *)&dev->data; int ret; + /* + * Both usbnet_suspend() and subdriver->suspend() MUST return 0 + * in system sleep context, otherwise, the resume callback has + * to recover device from previous suspend failure. + */ ret = usbnet_suspend(intf, message); if (ret < 0) goto err; diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 9abe51710f22..21b607ab86f2 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -2011,7 +2011,11 @@ static int smsc75xx_suspend(struct usb_interface *intf, pm_message_t message) ret = smsc75xx_enter_suspend0(dev); done: - if (ret) + /* + * TODO: resume() might need to handle the suspend failure + * in system sleep + */ + if (ret && PMSG_IS_AUTO(message)) usbnet_resume(intf); return ret; } diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index e6d2dea1373c..3f38ba868f61 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1660,7 +1660,11 @@ static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message) ret = smsc95xx_enter_suspend0(dev); done: - if (ret) + /* + * TODO: resume() might need to handle the suspend failure + * in system sleep + */ + if (ret && PMSG_IS_AUTO(message)) usbnet_resume(intf); return ret; } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 4cc13940c895..f76c3ca07a45 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -1023,6 +1023,7 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, AR_PHY_AGC_CONTROL_FLTR_CAL | AR_PHY_AGC_CONTROL_PKDET_CAL; + /* Use chip chainmask only for calibration */ ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask); if (rtt) { @@ -1150,6 +1151,9 @@ skip_tx_iqcal: ar9003_hw_rtt_disable(ah); } + /* Revert chainmask to runtime parameters */ + ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); + /* Initialize list pointers */ ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL; diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index ade3afb21f91..39c84ecf6a42 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -28,21 +28,21 @@ void ath_tx_complete_poll_work(struct work_struct *work) int i; bool needreset = false; - for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) - if (ATH_TXQ_SETUP(sc, i)) { - txq = &sc->tx.txq[i]; - ath_txq_lock(sc, txq); - if (txq->axq_depth) { - if (txq->axq_tx_inprogress) { - needreset = true; - ath_txq_unlock(sc, txq); - break; - } else { - txq->axq_tx_inprogress = true; - } + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + txq = sc->tx.txq_map[i]; + + ath_txq_lock(sc, txq); + if (txq->axq_depth) { + if (txq->axq_tx_inprogress) { + needreset = true; + ath_txq_unlock(sc, txq); + break; + } else { + txq->axq_tx_inprogress = true; } - ath_txq_unlock_complete(sc, txq); } + ath_txq_unlock_complete(sc, txq); + } if (needreset) { ath_dbg(ath9k_hw_common(sc->sc_ah), RESET, diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c index 3630a41df50d..c353b5f19c8c 100644 --- a/drivers/net/wireless/iwlegacy/3945-mac.c +++ b/drivers/net/wireless/iwlegacy/3945-mac.c @@ -475,6 +475,7 @@ il3945_tx_skb(struct il_priv *il, dma_addr_t txcmd_phys; int txq_id = skb_get_queue_mapping(skb); u16 len, idx, hdr_len; + u16 firstlen, secondlen; u8 id; u8 unicast; u8 sta_id; @@ -589,21 +590,22 @@ il3945_tx_skb(struct il_priv *il, len = sizeof(struct il3945_tx_cmd) + sizeof(struct il_cmd_header) + hdr_len; - len = (len + 3) & ~3; + firstlen = (len + 3) & ~3; /* Physical address of this Tx command's header (not MAC header!), * within command buffer array. */ txcmd_phys = - pci_map_single(il->pci_dev, &out_cmd->hdr, len, PCI_DMA_TODEVICE); + pci_map_single(il->pci_dev, &out_cmd->hdr, firstlen, + PCI_DMA_TODEVICE); if (unlikely(pci_dma_mapping_error(il->pci_dev, txcmd_phys))) goto drop_unlock; /* Set up TFD's 2nd entry to point directly to remainder of skb, * if any (802.11 null frames have no payload). */ - len = skb->len - hdr_len; - if (len) { + secondlen = skb->len - hdr_len; + if (secondlen > 0) { phys_addr = - pci_map_single(il->pci_dev, skb->data + hdr_len, len, + pci_map_single(il->pci_dev, skb->data + hdr_len, secondlen, PCI_DMA_TODEVICE); if (unlikely(pci_dma_mapping_error(il->pci_dev, phys_addr))) goto drop_unlock; @@ -611,12 +613,12 @@ il3945_tx_skb(struct il_priv *il, /* Add buffer containing Tx command and MAC(!) header to TFD's * first entry */ - il->ops->txq_attach_buf_to_tfd(il, txq, txcmd_phys, len, 1, 0); + il->ops->txq_attach_buf_to_tfd(il, txq, txcmd_phys, firstlen, 1, 0); dma_unmap_addr_set(out_meta, mapping, txcmd_phys); - dma_unmap_len_set(out_meta, len, len); - if (len) - il->ops->txq_attach_buf_to_tfd(il, txq, phys_addr, len, 0, - U32_PAD(len)); + dma_unmap_len_set(out_meta, len, firstlen); + if (secondlen > 0) + il->ops->txq_attach_buf_to_tfd(il, txq, phys_addr, secondlen, 0, + U32_PAD(secondlen)); if (!ieee80211_has_morefrags(hdr->frame_control)) { txq->need_update = 1; diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c index 20a6c5555873..b5c8b962ce12 100644 --- a/drivers/net/wireless/mwifiex/cmdevt.c +++ b/drivers/net/wireless/mwifiex/cmdevt.c @@ -157,6 +157,20 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, return -1; } + cmd_code = le16_to_cpu(host_cmd->command); + cmd_size = le16_to_cpu(host_cmd->size); + + if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET && + cmd_code != HostCmd_CMD_FUNC_SHUTDOWN && + cmd_code != HostCmd_CMD_FUNC_INIT) { + dev_err(adapter->dev, + "DNLD_CMD: FW in reset state, ignore cmd %#x\n", + cmd_code); + mwifiex_complete_cmd(adapter, cmd_node); + mwifiex_insert_cmd_to_free_q(adapter, cmd_node); + return -1; + } + /* Set command sequence number */ adapter->seq_num++; host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO @@ -168,9 +182,6 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, adapter->curr_cmd = cmd_node; spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); - cmd_code = le16_to_cpu(host_cmd->command); - cmd_size = le16_to_cpu(host_cmd->size); - /* Adjust skb length */ if (cmd_node->cmd_skb->len > cmd_size) /* @@ -484,8 +495,6 @@ int mwifiex_send_cmd_sync(struct mwifiex_private *priv, uint16_t cmd_no, ret = mwifiex_send_cmd_async(priv, cmd_no, cmd_action, cmd_oid, data_buf); - if (!ret) - ret = mwifiex_wait_queue_complete(adapter); return ret; } @@ -588,9 +597,10 @@ int mwifiex_send_cmd_async(struct mwifiex_private *priv, uint16_t cmd_no, if (cmd_no == HostCmd_CMD_802_11_SCAN) { mwifiex_queue_scan_cmd(priv, cmd_node); } else { - adapter->cmd_queued = cmd_node; mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true); queue_work(adapter->workqueue, &adapter->main_work); + if (cmd_node->wait_q_enabled) + ret = mwifiex_wait_queue_complete(adapter, cmd_node); } return ret; diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c index e38aa9b3663d..0ff4c37ab42a 100644 --- a/drivers/net/wireless/mwifiex/init.c +++ b/drivers/net/wireless/mwifiex/init.c @@ -709,6 +709,14 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter) return ret; } + /* cancel current command */ + if (adapter->curr_cmd) { + dev_warn(adapter->dev, "curr_cmd is still in processing\n"); + del_timer(&adapter->cmd_timer); + mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd); + adapter->curr_cmd = NULL; + } + /* shut down mwifiex */ dev_dbg(adapter->dev, "info: shutdown mwifiex...\n"); diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c index 246aa62a4817..2fe0ceba4400 100644 --- a/drivers/net/wireless/mwifiex/join.c +++ b/drivers/net/wireless/mwifiex/join.c @@ -1117,10 +1117,9 @@ mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv, adhoc_join->bss_descriptor.bssid, adhoc_join->bss_descriptor.ssid); - for (i = 0; bss_desc->supported_rates[i] && - i < MWIFIEX_SUPPORTED_RATES; - i++) - ; + for (i = 0; i < MWIFIEX_SUPPORTED_RATES && + bss_desc->supported_rates[i]; i++) + ; rates_size = i; /* Copy Data Rates from the Rates recorded in scan response */ diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index 553adfb0aa81..7035ade9af74 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -723,7 +723,6 @@ struct mwifiex_adapter { u16 cmd_wait_q_required; struct mwifiex_wait_queue cmd_wait_q; u8 scan_wait_q_woken; - struct cmd_ctrl_node *cmd_queued; spinlock_t queue_lock; /* lock for tx queues */ struct completion fw_load; u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; @@ -1018,7 +1017,8 @@ int mwifiex_request_set_multicast_list(struct mwifiex_private *priv, struct mwifiex_multicast_list *mcast_list); int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, struct net_device *dev); -int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter); +int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter, + struct cmd_ctrl_node *cmd_queued); int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, struct cfg80211_ssid *req_ssid); int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type); diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c index bb60c2754a97..d215b4d3c51b 100644 --- a/drivers/net/wireless/mwifiex/scan.c +++ b/drivers/net/wireless/mwifiex/scan.c @@ -1388,10 +1388,13 @@ int mwifiex_scan_networks(struct mwifiex_private *priv, list_del(&cmd_node->list); spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); - adapter->cmd_queued = cmd_node; mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true); queue_work(adapter->workqueue, &adapter->main_work); + + /* Perform internal scan synchronously */ + if (!priv->scan_request) + mwifiex_wait_queue_complete(adapter, cmd_node); } else { spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); @@ -1946,9 +1949,6 @@ int mwifiex_request_scan(struct mwifiex_private *priv, /* Normal scan */ ret = mwifiex_scan_networks(priv, NULL); - if (!ret) - ret = mwifiex_wait_queue_complete(priv->adapter); - up(&priv->async_sem); return ret; diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c index 9f33c92c90f5..13100f8de3db 100644 --- a/drivers/net/wireless/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -54,16 +54,10 @@ int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, * This function waits on a cmd wait queue. It also cancels the pending * request after waking up, in case of errors. */ -int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter) +int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter, + struct cmd_ctrl_node *cmd_queued) { int status; - struct cmd_ctrl_node *cmd_queued; - - if (!adapter->cmd_queued) - return 0; - - cmd_queued = adapter->cmd_queued; - adapter->cmd_queued = NULL; dev_dbg(adapter->dev, "cmd pending\n"); atomic_inc(&adapter->cmd_pending); diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig index 44d6ead43341..2bf4efa33186 100644 --- a/drivers/net/wireless/rt2x00/Kconfig +++ b/drivers/net/wireless/rt2x00/Kconfig @@ -55,10 +55,10 @@ config RT61PCI config RT2800PCI tristate "Ralink rt27xx/rt28xx/rt30xx (PCI/PCIe/PCMCIA) support" - depends on PCI || RALINK_RT288X || RALINK_RT305X + depends on PCI || SOC_RT288X || SOC_RT305X select RT2800_LIB select RT2X00_LIB_PCI if PCI - select RT2X00_LIB_SOC if RALINK_RT288X || RALINK_RT305X + select RT2X00_LIB_SOC if SOC_RT288X || SOC_RT305X select RT2X00_LIB_FIRMWARE select RT2X00_LIB_CRYPTO select CRC_CCITT diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 48a01aa21f1c..ded73da4de0b 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -89,7 +89,7 @@ static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token) rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0); } -#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT305X) +#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X) static int rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev) { void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE); @@ -107,7 +107,7 @@ static inline int rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev) { return -ENOMEM; } -#endif /* CONFIG_RALINK_RT288X || CONFIG_RALINK_RT305X */ +#endif /* CONFIG_SOC_RT288X || CONFIG_SOC_RT305X */ #ifdef CONFIG_PCI static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom) @@ -1177,7 +1177,7 @@ MODULE_DEVICE_TABLE(pci, rt2800pci_device_table); #endif /* CONFIG_PCI */ MODULE_LICENSE("GPL"); -#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT305X) +#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X) static int rt2800soc_probe(struct platform_device *pdev) { return rt2x00soc_probe(pdev, &rt2800pci_ops); @@ -1194,7 +1194,7 @@ static struct platform_driver rt2800soc_driver = { .suspend = rt2x00soc_suspend, .resume = rt2x00soc_resume, }; -#endif /* CONFIG_RALINK_RT288X || CONFIG_RALINK_RT305X */ +#endif /* CONFIG_SOC_RT288X || CONFIG_SOC_RT305X */ #ifdef CONFIG_PCI static int rt2800pci_probe(struct pci_dev *pci_dev, @@ -1217,7 +1217,7 @@ static int __init rt2800pci_init(void) { int ret = 0; -#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT305X) +#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X) ret = platform_driver_register(&rt2800soc_driver); if (ret) return ret; @@ -1225,7 +1225,7 @@ static int __init rt2800pci_init(void) #ifdef CONFIG_PCI ret = pci_register_driver(&rt2800pci_driver); if (ret) { -#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT305X) +#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X) platform_driver_unregister(&rt2800soc_driver); #endif return ret; @@ -1240,7 +1240,7 @@ static void __exit rt2800pci_exit(void) #ifdef CONFIG_PCI pci_unregister_driver(&rt2800pci_driver); #endif -#if defined(CONFIG_RALINK_RT288X) || defined(CONFIG_RALINK_RT305X) +#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X) platform_driver_unregister(&rt2800soc_driver); #endif } diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c index b1ccff474c79..c08d0f4c5f3d 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c @@ -1377,74 +1377,57 @@ void rtl92cu_card_disable(struct ieee80211_hw *hw) void rtl92cu_set_check_bssid(struct ieee80211_hw *hw, bool check_bssid) { - /* dummy routine needed for callback from rtl_op_configure_filter() */ -} - -/*========================================================================== */ - -static void _rtl92cu_set_check_bssid(struct ieee80211_hw *hw, - enum nl80211_iftype type) -{ struct rtl_priv *rtlpriv = rtl_priv(hw); - u32 reg_rcr = rtl_read_dword(rtlpriv, REG_RCR); struct rtl_hal *rtlhal = rtl_hal(rtlpriv); - struct rtl_phy *rtlphy = &(rtlpriv->phy); - u8 filterout_non_associated_bssid = false; + u32 reg_rcr = rtl_read_dword(rtlpriv, REG_RCR); - switch (type) { - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_STATION: - filterout_non_associated_bssid = true; - break; - case NL80211_IFTYPE_UNSPECIFIED: - case NL80211_IFTYPE_AP: - default: - break; - } - if (filterout_non_associated_bssid) { + if (rtlpriv->psc.rfpwr_state != ERFON) + return; + + if (check_bssid) { + u8 tmp; if (IS_NORMAL_CHIP(rtlhal->version)) { - switch (rtlphy->current_io_type) { - case IO_CMD_RESUME_DM_BY_SCAN: - reg_rcr |= (RCR_CBSSID_DATA | RCR_CBSSID_BCN); - rtlpriv->cfg->ops->set_hw_reg(hw, - HW_VAR_RCR, (u8 *)(®_rcr)); - /* enable update TSF */ - _rtl92cu_set_bcn_ctrl_reg(hw, 0, BIT(4)); - break; - case IO_CMD_PAUSE_DM_BY_SCAN: - reg_rcr &= ~(RCR_CBSSID_DATA | RCR_CBSSID_BCN); - rtlpriv->cfg->ops->set_hw_reg(hw, - HW_VAR_RCR, (u8 *)(®_rcr)); - /* disable update TSF */ - _rtl92cu_set_bcn_ctrl_reg(hw, BIT(4), 0); - break; - } + reg_rcr |= (RCR_CBSSID_DATA | RCR_CBSSID_BCN); + tmp = BIT(4); } else { - reg_rcr |= (RCR_CBSSID); - rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, - (u8 *)(®_rcr)); - _rtl92cu_set_bcn_ctrl_reg(hw, 0, (BIT(4)|BIT(5))); + reg_rcr |= RCR_CBSSID; + tmp = BIT(4) | BIT(5); } - } else if (filterout_non_associated_bssid == false) { + rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, + (u8 *) (®_rcr)); + _rtl92cu_set_bcn_ctrl_reg(hw, 0, tmp); + } else { + u8 tmp; if (IS_NORMAL_CHIP(rtlhal->version)) { - reg_rcr &= (~(RCR_CBSSID_DATA | RCR_CBSSID_BCN)); - rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, - (u8 *)(®_rcr)); - _rtl92cu_set_bcn_ctrl_reg(hw, BIT(4), 0); + reg_rcr &= ~(RCR_CBSSID_DATA | RCR_CBSSID_BCN); + tmp = BIT(4); } else { - reg_rcr &= (~RCR_CBSSID); - rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, - (u8 *)(®_rcr)); - _rtl92cu_set_bcn_ctrl_reg(hw, (BIT(4)|BIT(5)), 0); + reg_rcr &= ~RCR_CBSSID; + tmp = BIT(4) | BIT(5); } + reg_rcr &= (~(RCR_CBSSID_DATA | RCR_CBSSID_BCN)); + rtlpriv->cfg->ops->set_hw_reg(hw, + HW_VAR_RCR, (u8 *) (®_rcr)); + _rtl92cu_set_bcn_ctrl_reg(hw, tmp, 0); } } +/*========================================================================== */ + int rtl92cu_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type) { + struct rtl_priv *rtlpriv = rtl_priv(hw); + if (_rtl92cu_set_media_status(hw, type)) return -EOPNOTSUPP; - _rtl92cu_set_check_bssid(hw, type); + + if (rtlpriv->mac80211.link_state == MAC80211_LINKED) { + if (type != NL80211_IFTYPE_AP) + rtl92cu_set_check_bssid(hw, true); + } else { + rtl92cu_set_check_bssid(hw, false); + } + return 0; } @@ -2058,8 +2041,6 @@ void rtl92cu_update_hal_rate_table(struct ieee80211_hw *hw, (shortgi_rate << 4) | (shortgi_rate); } rtl_write_dword(rtlpriv, REG_ARFR0 + ratr_index * 4, ratr_value); - RT_TRACE(rtlpriv, COMP_RATR, DBG_DMESG, "%x\n", - rtl_read_dword(rtlpriv, REG_ARFR0)); } void rtl92cu_update_hal_rate_mask(struct ieee80211_hw *hw, u8 rssi_level) diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index 156b52732f3d..5847d6d0881e 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -851,6 +851,7 @@ static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb, if (unlikely(!_urb)) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't allocate urb. Drop skb!\n"); + kfree_skb(skb); return; } _rtl_submit_tx_urb(hw, _urb); diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index ab886b7ee327..b41ac7756a4b 100644 --- a/drivers/pci/rom.c +++ b/drivers/pci/rom.c @@ -100,6 +100,27 @@ size_t pci_get_rom_size(struct pci_dev *pdev, void __iomem *rom, size_t size) return min((size_t)(image - rom), size); } +static loff_t pci_find_rom(struct pci_dev *pdev, size_t *size) +{ + struct resource *res = &pdev->resource[PCI_ROM_RESOURCE]; + loff_t start; + + /* assign the ROM an address if it doesn't have one */ + if (res->parent == NULL && pci_assign_resource(pdev, PCI_ROM_RESOURCE)) + return 0; + start = pci_resource_start(pdev, PCI_ROM_RESOURCE); + *size = pci_resource_len(pdev, PCI_ROM_RESOURCE); + + if (*size == 0) + return 0; + + /* Enable ROM space decodes */ + if (pci_enable_rom(pdev)) + return 0; + + return start; +} + /** * pci_map_rom - map a PCI ROM to kernel space * @pdev: pointer to pci device struct @@ -114,21 +135,15 @@ size_t pci_get_rom_size(struct pci_dev *pdev, void __iomem *rom, size_t size) void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size) { struct resource *res = &pdev->resource[PCI_ROM_RESOURCE]; - loff_t start; + loff_t start = 0; void __iomem *rom; /* - * Some devices may provide ROMs via a source other than the BAR - */ - if (pdev->rom && pdev->romlen) { - *size = pdev->romlen; - return phys_to_virt(pdev->rom); - /* * IORESOURCE_ROM_SHADOW set on x86, x86_64 and IA64 supports legacy * memory map if the VGA enable bit of the Bridge Control register is * set for embedded VGA. */ - } else if (res->flags & IORESOURCE_ROM_SHADOW) { + if (res->flags & IORESOURCE_ROM_SHADOW) { /* primary video rom always starts here */ start = (loff_t)0xC0000; *size = 0x20000; /* cover C000:0 through E000:0 */ @@ -139,21 +154,21 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size) return (void __iomem *)(unsigned long) pci_resource_start(pdev, PCI_ROM_RESOURCE); } else { - /* assign the ROM an address if it doesn't have one */ - if (res->parent == NULL && - pci_assign_resource(pdev,PCI_ROM_RESOURCE)) - return NULL; - start = pci_resource_start(pdev, PCI_ROM_RESOURCE); - *size = pci_resource_len(pdev, PCI_ROM_RESOURCE); - if (*size == 0) - return NULL; - - /* Enable ROM space decodes */ - if (pci_enable_rom(pdev)) - return NULL; + start = pci_find_rom(pdev, size); } } + /* + * Some devices may provide ROMs via a source other than the BAR + */ + if (!start && pdev->rom && pdev->romlen) { + *size = pdev->romlen; + return phys_to_virt(pdev->rom); + } + + if (!start) + return NULL; + rom = ioremap(start, *size); if (!rom) { /* restore enable if ioremap fails */ diff --git a/drivers/pinctrl/mvebu/pinctrl-mvebu.c b/drivers/pinctrl/mvebu/pinctrl-mvebu.c index c689c04a4f52..2d2f0a43d36b 100644 --- a/drivers/pinctrl/mvebu/pinctrl-mvebu.c +++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.c @@ -620,7 +620,7 @@ int mvebu_pinctrl_probe(struct platform_device *pdev) /* special soc specific control */ if (ctrl->mpp_get || ctrl->mpp_set) { - if (!ctrl->name || !ctrl->mpp_set || !ctrl->mpp_set) { + if (!ctrl->name || !ctrl->mpp_get || !ctrl->mpp_set) { dev_err(&pdev->dev, "wrong soc control info\n"); return -EINVAL; } diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c index ac8d382a79bb..d611ecfcbf70 100644 --- a/drivers/pinctrl/pinconf.c +++ b/drivers/pinctrl/pinconf.c @@ -622,7 +622,7 @@ static const struct file_operations pinconf_dbg_pinname_fops = { static int pinconf_dbg_state_print(struct seq_file *s, void *d) { if (strlen(dbg_state_name)) - seq_printf(s, "%s\n", dbg_pinname); + seq_printf(s, "%s\n", dbg_state_name); else seq_printf(s, "No pin state set\n"); return 0; diff --git a/drivers/pinctrl/pinconf.h b/drivers/pinctrl/pinconf.h index e3ed8cb072a5..bfda73d64eed 100644 --- a/drivers/pinctrl/pinconf.h +++ b/drivers/pinctrl/pinconf.h @@ -90,7 +90,7 @@ static inline void pinconf_init_device_debugfs(struct dentry *devroot, * pin config. */ -#ifdef CONFIG_GENERIC_PINCONF +#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS) void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned pin); diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c index caecdd373061..c542a97c82f3 100644 --- a/drivers/pinctrl/pinctrl-abx500.c +++ b/drivers/pinctrl/pinctrl-abx500.c @@ -422,7 +422,7 @@ static u8 abx500_get_mode(struct pinctrl_dev *pctldev, struct gpio_chip *chip, } /* check if pin use AlternateFunction register */ - if ((af.alt_bit1 == UNUSED) && (af.alt_bit1 == UNUSED)) + if ((af.alt_bit1 == UNUSED) && (af.alt_bit2 == UNUSED)) return mode; /* * if pin GPIOSEL bit is set and pin supports alternate function, diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 75933a6aa828..efb7f10e902a 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1277,21 +1277,80 @@ static int alt_gpio_irq_type(struct irq_data *d, unsigned type) } #ifdef CONFIG_PM + +static u32 wakeups[MAX_GPIO_BANKS]; +static u32 backups[MAX_GPIO_BANKS]; + static int gpio_irq_set_wake(struct irq_data *d, unsigned state) { struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d); unsigned bank = at91_gpio->pioc_idx; + unsigned mask = 1 << d->hwirq; if (unlikely(bank >= MAX_GPIO_BANKS)) return -EINVAL; + if (state) + wakeups[bank] |= mask; + else + wakeups[bank] &= ~mask; + irq_set_irq_wake(at91_gpio->pioc_virq, state); return 0; } + +void at91_pinctrl_gpio_suspend(void) +{ + int i; + + for (i = 0; i < gpio_banks; i++) { + void __iomem *pio; + + if (!gpio_chips[i]) + continue; + + pio = gpio_chips[i]->regbase; + + backups[i] = __raw_readl(pio + PIO_IMR); + __raw_writel(backups[i], pio + PIO_IDR); + __raw_writel(wakeups[i], pio + PIO_IER); + + if (!wakeups[i]) { + clk_unprepare(gpio_chips[i]->clock); + clk_disable(gpio_chips[i]->clock); + } else { + printk(KERN_DEBUG "GPIO-%c may wake for %08x\n", + 'A'+i, wakeups[i]); + } + } +} + +void at91_pinctrl_gpio_resume(void) +{ + int i; + + for (i = 0; i < gpio_banks; i++) { + void __iomem *pio; + + if (!gpio_chips[i]) + continue; + + pio = gpio_chips[i]->regbase; + + if (!wakeups[i]) { + if (clk_prepare(gpio_chips[i]->clock) == 0) + clk_enable(gpio_chips[i]->clock); + } + + __raw_writel(wakeups[i], pio + PIO_IDR); + __raw_writel(backups[i], pio + PIO_IER); + } +} + #else #define gpio_irq_set_wake NULL -#endif +#endif /* CONFIG_PM */ static struct irq_chip gpio_irqchip = { .name = "GPIO", diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c index 1a00658b3ea0..bd83c8b01cd1 100644 --- a/drivers/pinctrl/pinmux.c +++ b/drivers/pinctrl/pinmux.c @@ -194,6 +194,11 @@ static const char *pin_free(struct pinctrl_dev *pctldev, int pin, } if (!gpio_range) { + /* + * A pin should not be freed more times than allocated. + */ + if (WARN_ON(!desc->mux_usecount)) + return NULL; desc->mux_usecount--; if (desc->mux_usecount) return NULL; diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index 434ebc3a99dc..0a9f27e094ea 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -44,6 +44,7 @@ static DECLARE_COMPLETION(at91_rtc_updated); static unsigned int at91_alarm_year = AT91_RTC_EPOCH; static void __iomem *at91_rtc_regs; static int irq; +static u32 at91_rtc_imr; /* * Decode time/date into rtc_time structure @@ -108,9 +109,11 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm) cr = at91_rtc_read(AT91_RTC_CR); at91_rtc_write(AT91_RTC_CR, cr | AT91_RTC_UPDCAL | AT91_RTC_UPDTIM); + at91_rtc_imr |= AT91_RTC_ACKUPD; at91_rtc_write(AT91_RTC_IER, AT91_RTC_ACKUPD); wait_for_completion(&at91_rtc_updated); /* wait for ACKUPD interrupt */ at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD); + at91_rtc_imr &= ~AT91_RTC_ACKUPD; at91_rtc_write(AT91_RTC_TIMR, bin2bcd(tm->tm_sec) << 0 @@ -142,7 +145,7 @@ static int at91_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) tm->tm_yday = rtc_year_days(tm->tm_mday, tm->tm_mon, tm->tm_year); tm->tm_year = at91_alarm_year - 1900; - alrm->enabled = (at91_rtc_read(AT91_RTC_IMR) & AT91_RTC_ALARM) + alrm->enabled = (at91_rtc_imr & AT91_RTC_ALARM) ? 1 : 0; dev_dbg(dev, "%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __func__, @@ -168,6 +171,7 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) tm.tm_sec = alrm->time.tm_sec; at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ALARM); + at91_rtc_imr &= ~AT91_RTC_ALARM; at91_rtc_write(AT91_RTC_TIMALR, bin2bcd(tm.tm_sec) << 0 | bin2bcd(tm.tm_min) << 8 @@ -180,6 +184,7 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) if (alrm->enabled) { at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM); + at91_rtc_imr |= AT91_RTC_ALARM; at91_rtc_write(AT91_RTC_IER, AT91_RTC_ALARM); } @@ -196,9 +201,12 @@ static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) if (enabled) { at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM); + at91_rtc_imr |= AT91_RTC_ALARM; at91_rtc_write(AT91_RTC_IER, AT91_RTC_ALARM); - } else + } else { at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ALARM); + at91_rtc_imr &= ~AT91_RTC_ALARM; + } return 0; } @@ -207,12 +215,10 @@ static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) */ static int at91_rtc_proc(struct device *dev, struct seq_file *seq) { - unsigned long imr = at91_rtc_read(AT91_RTC_IMR); - seq_printf(seq, "update_IRQ\t: %s\n", - (imr & AT91_RTC_ACKUPD) ? "yes" : "no"); + (at91_rtc_imr & AT91_RTC_ACKUPD) ? "yes" : "no"); seq_printf(seq, "periodic_IRQ\t: %s\n", - (imr & AT91_RTC_SECEV) ? "yes" : "no"); + (at91_rtc_imr & AT91_RTC_SECEV) ? "yes" : "no"); return 0; } @@ -227,7 +233,7 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id) unsigned int rtsr; unsigned long events = 0; - rtsr = at91_rtc_read(AT91_RTC_SR) & at91_rtc_read(AT91_RTC_IMR); + rtsr = at91_rtc_read(AT91_RTC_SR) & at91_rtc_imr; if (rtsr) { /* this interrupt is shared! Is it ours? */ if (rtsr & AT91_RTC_ALARM) events |= (RTC_AF | RTC_IRQF); @@ -291,6 +297,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev) at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM | AT91_RTC_SECEV | AT91_RTC_TIMEV | AT91_RTC_CALEV); + at91_rtc_imr = 0; ret = request_irq(irq, at91_rtc_interrupt, IRQF_SHARED, @@ -329,6 +336,7 @@ static int __exit at91_rtc_remove(struct platform_device *pdev) at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM | AT91_RTC_SECEV | AT91_RTC_TIMEV | AT91_RTC_CALEV); + at91_rtc_imr = 0; free_irq(irq, pdev); rtc_device_unregister(rtc); @@ -341,31 +349,35 @@ static int __exit at91_rtc_remove(struct platform_device *pdev) /* AT91RM9200 RTC Power management control */ -static u32 at91_rtc_imr; +static u32 at91_rtc_bkpimr; + static int at91_rtc_suspend(struct device *dev) { /* this IRQ is shared with DBGU and other hardware which isn't * necessarily doing PM like we are... */ - at91_rtc_imr = at91_rtc_read(AT91_RTC_IMR) - & (AT91_RTC_ALARM|AT91_RTC_SECEV); - if (at91_rtc_imr) { - if (device_may_wakeup(dev)) + at91_rtc_bkpimr = at91_rtc_imr & (AT91_RTC_ALARM|AT91_RTC_SECEV); + if (at91_rtc_bkpimr) { + if (device_may_wakeup(dev)) { enable_irq_wake(irq); - else - at91_rtc_write(AT91_RTC_IDR, at91_rtc_imr); - } + } else { + at91_rtc_write(AT91_RTC_IDR, at91_rtc_bkpimr); + at91_rtc_imr &= ~at91_rtc_bkpimr; + } +} return 0; } static int at91_rtc_resume(struct device *dev) { - if (at91_rtc_imr) { - if (device_may_wakeup(dev)) + if (at91_rtc_bkpimr) { + if (device_may_wakeup(dev)) { disable_irq_wake(irq); - else - at91_rtc_write(AT91_RTC_IER, at91_rtc_imr); + } else { + at91_rtc_imr |= at91_rtc_bkpimr; + at91_rtc_write(AT91_RTC_IER, at91_rtc_bkpimr); + } } return 0; } diff --git a/drivers/rtc/rtc-at91rm9200.h b/drivers/rtc/rtc-at91rm9200.h index da1945e5f714..5f940b6844cb 100644 --- a/drivers/rtc/rtc-at91rm9200.h +++ b/drivers/rtc/rtc-at91rm9200.h @@ -64,7 +64,6 @@ #define AT91_RTC_SCCR 0x1c /* Status Clear Command Register */ #define AT91_RTC_IER 0x20 /* Interrupt Enable Register */ #define AT91_RTC_IDR 0x24 /* Interrupt Disable Register */ -#define AT91_RTC_IMR 0x28 /* Interrupt Mask Register */ #define AT91_RTC_VER 0x2c /* Valid Entry Register */ #define AT91_RTC_NVTIM (1 << 0) /* Non valid Time */ diff --git a/drivers/rtc/rtc-da9052.c b/drivers/rtc/rtc-da9052.c index 0dde688ca09b..969abbad7fe3 100644 --- a/drivers/rtc/rtc-da9052.c +++ b/drivers/rtc/rtc-da9052.c @@ -239,11 +239,9 @@ static int da9052_rtc_probe(struct platform_device *pdev) rtc->da9052 = dev_get_drvdata(pdev->dev.parent); platform_set_drvdata(pdev, rtc); - rtc->irq = platform_get_irq_byname(pdev, "ALM"); - ret = devm_request_threaded_irq(&pdev->dev, rtc->irq, NULL, - da9052_rtc_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "ALM", rtc); + rtc->irq = DA9052_IRQ_ALARM; + ret = da9052_request_irq(rtc->da9052, rtc->irq, "ALM", + da9052_rtc_irq, rtc); if (ret != 0) { rtc_err(rtc->da9052, "irq registration failed: %d\n", ret); return ret; diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c index 9978ad4433cb..5ac9c935c151 100644 --- a/drivers/s390/block/scm_blk.c +++ b/drivers/s390/block/scm_blk.c @@ -135,6 +135,11 @@ static const struct block_device_operations scm_blk_devops = { .release = scm_release, }; +static bool scm_permit_request(struct scm_blk_dev *bdev, struct request *req) +{ + return rq_data_dir(req) != WRITE || bdev->state != SCM_WR_PROHIBIT; +} + static void scm_request_prepare(struct scm_request *scmrq) { struct scm_blk_dev *bdev = scmrq->bdev; @@ -195,14 +200,18 @@ void scm_request_requeue(struct scm_request *scmrq) scm_release_cluster(scmrq); blk_requeue_request(bdev->rq, scmrq->request); + atomic_dec(&bdev->queued_reqs); scm_request_done(scmrq); scm_ensure_queue_restart(bdev); } void scm_request_finish(struct scm_request *scmrq) { + struct scm_blk_dev *bdev = scmrq->bdev; + scm_release_cluster(scmrq); blk_end_request_all(scmrq->request, scmrq->error); + atomic_dec(&bdev->queued_reqs); scm_request_done(scmrq); } @@ -218,6 +227,10 @@ static void scm_blk_request(struct request_queue *rq) if (req->cmd_type != REQ_TYPE_FS) continue; + if (!scm_permit_request(bdev, req)) { + scm_ensure_queue_restart(bdev); + return; + } scmrq = scm_request_fetch(); if (!scmrq) { SCM_LOG(5, "no request"); @@ -231,11 +244,13 @@ static void scm_blk_request(struct request_queue *rq) return; } if (scm_need_cluster_request(scmrq)) { + atomic_inc(&bdev->queued_reqs); blk_start_request(req); scm_initiate_cluster_request(scmrq); return; } scm_request_prepare(scmrq); + atomic_inc(&bdev->queued_reqs); blk_start_request(req); ret = scm_start_aob(scmrq->aob); @@ -244,7 +259,6 @@ static void scm_blk_request(struct request_queue *rq) scm_request_requeue(scmrq); return; } - atomic_inc(&bdev->queued_reqs); } } @@ -280,6 +294,38 @@ void scm_blk_irq(struct scm_device *scmdev, void *data, int error) tasklet_hi_schedule(&bdev->tasklet); } +static void scm_blk_handle_error(struct scm_request *scmrq) +{ + struct scm_blk_dev *bdev = scmrq->bdev; + unsigned long flags; + + if (scmrq->error != -EIO) + goto restart; + + /* For -EIO the response block is valid. */ + switch (scmrq->aob->response.eqc) { + case EQC_WR_PROHIBIT: + spin_lock_irqsave(&bdev->lock, flags); + if (bdev->state != SCM_WR_PROHIBIT) + pr_info("%lu: Write access to the SCM increment is suspended\n", + (unsigned long) bdev->scmdev->address); + bdev->state = SCM_WR_PROHIBIT; + spin_unlock_irqrestore(&bdev->lock, flags); + goto requeue; + default: + break; + } + +restart: + if (!scm_start_aob(scmrq->aob)) + return; + +requeue: + spin_lock_irqsave(&bdev->rq_lock, flags); + scm_request_requeue(scmrq); + spin_unlock_irqrestore(&bdev->rq_lock, flags); +} + static void scm_blk_tasklet(struct scm_blk_dev *bdev) { struct scm_request *scmrq; @@ -293,11 +339,8 @@ static void scm_blk_tasklet(struct scm_blk_dev *bdev) spin_unlock_irqrestore(&bdev->lock, flags); if (scmrq->error && scmrq->retries-- > 0) { - if (scm_start_aob(scmrq->aob)) { - spin_lock_irqsave(&bdev->rq_lock, flags); - scm_request_requeue(scmrq); - spin_unlock_irqrestore(&bdev->rq_lock, flags); - } + scm_blk_handle_error(scmrq); + /* Request restarted or requeued, handle next. */ spin_lock_irqsave(&bdev->lock, flags); continue; @@ -310,7 +353,6 @@ static void scm_blk_tasklet(struct scm_blk_dev *bdev) } scm_request_finish(scmrq); - atomic_dec(&bdev->queued_reqs); spin_lock_irqsave(&bdev->lock, flags); } spin_unlock_irqrestore(&bdev->lock, flags); @@ -332,6 +374,7 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev) } bdev->scmdev = scmdev; + bdev->state = SCM_OPER; spin_lock_init(&bdev->rq_lock); spin_lock_init(&bdev->lock); INIT_LIST_HEAD(&bdev->finished_requests); @@ -396,6 +439,18 @@ void scm_blk_dev_cleanup(struct scm_blk_dev *bdev) put_disk(bdev->gendisk); } +void scm_blk_set_available(struct scm_blk_dev *bdev) +{ + unsigned long flags; + + spin_lock_irqsave(&bdev->lock, flags); + if (bdev->state == SCM_WR_PROHIBIT) + pr_info("%lu: Write access to the SCM increment is restored\n", + (unsigned long) bdev->scmdev->address); + bdev->state = SCM_OPER; + spin_unlock_irqrestore(&bdev->lock, flags); +} + static int __init scm_blk_init(void) { int ret = -EINVAL; diff --git a/drivers/s390/block/scm_blk.h b/drivers/s390/block/scm_blk.h index 3c1ccf494647..8b387b32fd62 100644 --- a/drivers/s390/block/scm_blk.h +++ b/drivers/s390/block/scm_blk.h @@ -21,6 +21,7 @@ struct scm_blk_dev { spinlock_t rq_lock; /* guard the request queue */ spinlock_t lock; /* guard the rest of the blockdev */ atomic_t queued_reqs; + enum {SCM_OPER, SCM_WR_PROHIBIT} state; struct list_head finished_requests; #ifdef CONFIG_SCM_BLOCK_CLUSTER_WRITE struct list_head cluster_list; @@ -48,6 +49,7 @@ struct scm_request { int scm_blk_dev_setup(struct scm_blk_dev *, struct scm_device *); void scm_blk_dev_cleanup(struct scm_blk_dev *); +void scm_blk_set_available(struct scm_blk_dev *); void scm_blk_irq(struct scm_device *, void *, int); void scm_request_finish(struct scm_request *); diff --git a/drivers/s390/block/scm_drv.c b/drivers/s390/block/scm_drv.c index 9fa0a908607b..5f6180d6ff08 100644 --- a/drivers/s390/block/scm_drv.c +++ b/drivers/s390/block/scm_drv.c @@ -13,12 +13,23 @@ #include <asm/eadm.h> #include "scm_blk.h" -static void notify(struct scm_device *scmdev) +static void scm_notify(struct scm_device *scmdev, enum scm_event event) { - pr_info("%lu: The capabilities of the SCM increment changed\n", - (unsigned long) scmdev->address); - SCM_LOG(2, "State changed"); - SCM_LOG_STATE(2, scmdev); + struct scm_blk_dev *bdev = dev_get_drvdata(&scmdev->dev); + + switch (event) { + case SCM_CHANGE: + pr_info("%lu: The capabilities of the SCM increment changed\n", + (unsigned long) scmdev->address); + SCM_LOG(2, "State changed"); + SCM_LOG_STATE(2, scmdev); + break; + case SCM_AVAIL: + SCM_LOG(2, "Increment available"); + SCM_LOG_STATE(2, scmdev); + scm_blk_set_available(bdev); + break; + } } static int scm_probe(struct scm_device *scmdev) @@ -64,7 +75,7 @@ static struct scm_driver scm_drv = { .name = "scm_block", .owner = THIS_MODULE, }, - .notify = notify, + .notify = scm_notify, .probe = scm_probe, .remove = scm_remove, .handler = scm_blk_irq, diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index 30a2255389e5..cd798386b622 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -627,6 +627,8 @@ static int __init sclp_detect_standby_memory(void) struct read_storage_sccb *sccb; int i, id, assigned, rc; + if (OLDMEM_BASE) /* No standby memory in kdump mode */ + return 0; if (!early_read_info_sccb_valid) return 0; if ((sclp_facilities & 0xe00000000000ULL) != 0xe00000000000ULL) diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 31ceef1beb8b..e16c553f6556 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -433,6 +433,20 @@ static void chsc_process_sei_scm_change(struct chsc_sei_nt0_area *sei_area) " failed (rc=%d).\n", ret); } +static void chsc_process_sei_scm_avail(struct chsc_sei_nt0_area *sei_area) +{ + int ret; + + CIO_CRW_EVENT(4, "chsc: scm available information\n"); + if (sei_area->rs != 7) + return; + + ret = scm_process_availability_information(); + if (ret) + CIO_CRW_EVENT(0, "chsc: process availability information" + " failed (rc=%d).\n", ret); +} + static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area) { switch (sei_area->cc) { @@ -468,6 +482,9 @@ static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area) case 12: /* scm change notification */ chsc_process_sei_scm_change(sei_area); break; + case 14: /* scm available notification */ + chsc_process_sei_scm_avail(sei_area); + break; default: /* other stuff */ CIO_CRW_EVENT(2, "chsc: sei nt0 unhandled cc=%d\n", sei_area->cc); diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h index 227e05f674b3..349d5fc47196 100644 --- a/drivers/s390/cio/chsc.h +++ b/drivers/s390/cio/chsc.h @@ -156,8 +156,10 @@ int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token); #ifdef CONFIG_SCM_BUS int scm_update_information(void); +int scm_process_availability_information(void); #else /* CONFIG_SCM_BUS */ static inline int scm_update_information(void) { return 0; } +static inline int scm_process_availability_information(void) { return 0; } #endif /* CONFIG_SCM_BUS */ diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c index bcf20f3aa51b..46ec25632e8b 100644 --- a/drivers/s390/cio/scm.c +++ b/drivers/s390/cio/scm.c @@ -211,7 +211,7 @@ static void scmdev_update(struct scm_device *scmdev, struct sale *sale) goto out; scmdrv = to_scm_drv(scmdev->dev.driver); if (changed && scmdrv->notify) - scmdrv->notify(scmdev); + scmdrv->notify(scmdev, SCM_CHANGE); out: device_unlock(&scmdev->dev); if (changed) @@ -297,6 +297,22 @@ int scm_update_information(void) return ret; } +static int scm_dev_avail(struct device *dev, void *unused) +{ + struct scm_driver *scmdrv = to_scm_drv(dev->driver); + struct scm_device *scmdev = to_scm_dev(dev); + + if (dev->driver && scmdrv->notify) + scmdrv->notify(scmdev, SCM_AVAIL); + + return 0; +} + +int scm_process_availability_information(void) +{ + return bus_for_each_dev(&scm_bus_type, NULL, NULL, scm_dev_avail); +} + static int __init scm_init(void) { int ret; diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index d87961d4c0de..8c0622399fcd 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -916,6 +916,7 @@ int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *, void *reply_param); int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int); int qeth_get_elements_no(struct qeth_card *, void *, struct sk_buff *, int); +int qeth_get_elements_for_frags(struct sk_buff *); int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *, struct sk_buff *, struct qeth_hdr *, int, int, int); int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *, diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 0d8cdff81813..0d73a999983d 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -3679,6 +3679,25 @@ int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, } EXPORT_SYMBOL_GPL(qeth_get_priority_queue); +int qeth_get_elements_for_frags(struct sk_buff *skb) +{ + int cnt, length, e, elements = 0; + struct skb_frag_struct *frag; + char *data; + + for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { + frag = &skb_shinfo(skb)->frags[cnt]; + data = (char *)page_to_phys(skb_frag_page(frag)) + + frag->page_offset; + length = frag->size; + e = PFN_UP((unsigned long)data + length - 1) - + PFN_DOWN((unsigned long)data); + elements += e; + } + return elements; +} +EXPORT_SYMBOL_GPL(qeth_get_elements_for_frags); + int qeth_get_elements_no(struct qeth_card *card, void *hdr, struct sk_buff *skb, int elems) { @@ -3686,7 +3705,8 @@ int qeth_get_elements_no(struct qeth_card *card, void *hdr, int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) - PFN_DOWN((unsigned long)skb->data); - elements_needed += skb_shinfo(skb)->nr_frags; + elements_needed += qeth_get_elements_for_frags(skb); + if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { QETH_DBF_MESSAGE(2, "Invalid size of IP packet " "(Number=%d / Length=%d). Discarded.\n", @@ -3771,12 +3791,23 @@ static inline void __qeth_fill_buffer(struct sk_buff *skb, for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { frag = &skb_shinfo(skb)->frags[cnt]; - buffer->element[element].addr = (char *) - page_to_phys(skb_frag_page(frag)) - + frag->page_offset; - buffer->element[element].length = frag->size; - buffer->element[element].eflags = SBAL_EFLAGS_MIDDLE_FRAG; - element++; + data = (char *)page_to_phys(skb_frag_page(frag)) + + frag->page_offset; + length = frag->size; + while (length > 0) { + length_here = PAGE_SIZE - + ((unsigned long) data % PAGE_SIZE); + if (length < length_here) + length_here = length; + + buffer->element[element].addr = data; + buffer->element[element].length = length_here; + buffer->element[element].eflags = + SBAL_EFLAGS_MIDDLE_FRAG; + length -= length_here; + data += length_here; + element++; + } } if (buffer->element[element - 1].eflags) diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 091ca0efa1c5..8710337dab3e 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -623,7 +623,7 @@ static int qeth_l3_send_setrouting(struct qeth_card *card, return rc; } -static void qeth_l3_correct_routing_type(struct qeth_card *card, +static int qeth_l3_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type, enum qeth_prot_versions prot) { if (card->info.type == QETH_CARD_TYPE_IQD) { @@ -632,7 +632,7 @@ static void qeth_l3_correct_routing_type(struct qeth_card *card, case PRIMARY_CONNECTOR: case SECONDARY_CONNECTOR: case MULTICAST_ROUTER: - return; + return 0; default: goto out_inval; } @@ -641,17 +641,18 @@ static void qeth_l3_correct_routing_type(struct qeth_card *card, case NO_ROUTER: case PRIMARY_ROUTER: case SECONDARY_ROUTER: - return; + return 0; case MULTICAST_ROUTER: if (qeth_is_ipafunc_supported(card, prot, IPA_OSA_MC_ROUTER)) - return; + return 0; default: goto out_inval; } } out_inval: *type = NO_ROUTER; + return -EINVAL; } int qeth_l3_setrouting_v4(struct qeth_card *card) @@ -660,8 +661,10 @@ int qeth_l3_setrouting_v4(struct qeth_card *card) QETH_CARD_TEXT(card, 3, "setrtg4"); - qeth_l3_correct_routing_type(card, &card->options.route4.type, + rc = qeth_l3_correct_routing_type(card, &card->options.route4.type, QETH_PROT_IPV4); + if (rc) + return rc; rc = qeth_l3_send_setrouting(card, card->options.route4.type, QETH_PROT_IPV4); @@ -683,8 +686,10 @@ int qeth_l3_setrouting_v6(struct qeth_card *card) if (!qeth_is_supported(card, IPA_IPV6)) return 0; - qeth_l3_correct_routing_type(card, &card->options.route6.type, + rc = qeth_l3_correct_routing_type(card, &card->options.route6.type, QETH_PROT_IPV6); + if (rc) + return rc; rc = qeth_l3_send_setrouting(card, card->options.route6.type, QETH_PROT_IPV6); @@ -2898,7 +2903,9 @@ static inline int qeth_l3_tso_elements(struct sk_buff *skb) tcp_hdr(skb)->doff * 4; int tcpd_len = skb->len - (tcpd - (unsigned long)skb->data); int elements = PFN_UP(tcpd + tcpd_len - 1) - PFN_DOWN(tcpd); - elements += skb_shinfo(skb)->nr_frags; + + elements += qeth_get_elements_for_frags(skb); + return elements; } @@ -3348,7 +3355,6 @@ static int __qeth_l3_set_online(struct ccwgroup_device *gdev, int recovery_mode) rc = -ENODEV; goto out_remove; } - qeth_trace_features(card); if (!card->dev && qeth_l3_setup_netdev(card)) { rc = -ENODEV; @@ -3425,6 +3431,7 @@ contin: qeth_l3_set_multicast_list(card->dev); rtnl_unlock(); } + qeth_trace_features(card); /* let user_space know that device is online */ kobject_uevent(&gdev->dev.kobj, KOBJ_CHANGE); mutex_unlock(&card->conf_mutex); diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index ebc379486267..e70af2406ff9 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -87,6 +87,8 @@ static ssize_t qeth_l3_dev_route_store(struct qeth_card *card, rc = qeth_l3_setrouting_v6(card); } out: + if (rc) + route->type = old_route_type; mutex_unlock(&card->conf_mutex); return rc ? rc : count; } diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index 093f10c88cce..659855cecda5 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -116,8 +116,6 @@ source "drivers/staging/android/Kconfig" source "drivers/staging/ozwpan/Kconfig" -source "drivers/staging/ccg/Kconfig" - source "drivers/staging/gdm72xx/Kconfig" source "drivers/staging/csr/Kconfig" diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile index fa41b04cf4cb..b367ea876854 100644 --- a/drivers/staging/Makefile +++ b/drivers/staging/Makefile @@ -50,7 +50,6 @@ obj-$(CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4) += ste_rmi4/ obj-$(CONFIG_MFD_NVEC) += nvec/ obj-$(CONFIG_ANDROID) += android/ obj-$(CONFIG_USB_WPAN_HCD) += ozwpan/ -obj-$(CONFIG_USB_G_CCG) += ccg/ obj-$(CONFIG_WIMAX_GDM72XX) += gdm72xx/ obj-$(CONFIG_CSR_WIFI) += csr/ obj-$(CONFIG_OMAP_BANDGAP) += omap-thermal/ diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c index 81a1fe661579..71a73ec5af8d 100644 --- a/drivers/staging/comedi/drivers/s626.c +++ b/drivers/staging/comedi/drivers/s626.c @@ -1483,7 +1483,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) case TRIG_NONE: /* continous acquisition */ devpriv->ai_continous = 1; - devpriv->ai_sample_count = 0; + devpriv->ai_sample_count = 1; break; } diff --git a/drivers/staging/zcache/Kconfig b/drivers/staging/zcache/Kconfig index 73582705e8c5..5c3714530961 100644 --- a/drivers/staging/zcache/Kconfig +++ b/drivers/staging/zcache/Kconfig @@ -15,7 +15,7 @@ config RAMSTER depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE=y depends on NET # must ensure struct page is 8-byte aligned - select HAVE_ALIGNED_STRUCT_PAGE if !64_BIT + select HAVE_ALIGNED_STRUCT_PAGE if !64BIT default n help RAMster allows RAM on other machines in a cluster to be utilized diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index db0cf7c8adde..a0fc7b9eea65 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -166,6 +166,7 @@ static int chap_server_compute_md5( { char *endptr; unsigned long id; + unsigned char id_as_uchar; unsigned char digest[MD5_SIGNATURE_SIZE]; unsigned char type, response[MD5_SIGNATURE_SIZE * 2 + 2]; unsigned char identifier[10], *challenge = NULL; @@ -355,7 +356,9 @@ static int chap_server_compute_md5( goto out; } - sg_init_one(&sg, &id, 1); + /* To handle both endiannesses */ + id_as_uchar = id; + sg_init_one(&sg, &id_as_uchar, 1); ret = crypto_hash_update(&desc, &sg, 1); if (ret < 0) { pr_err("crypto_hash_update() failed for id\n"); diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h index bc02b018ae46..37ffc5bd2399 100644 --- a/drivers/target/target_core_file.h +++ b/drivers/target/target_core_file.h @@ -7,7 +7,7 @@ #define FD_DEVICE_QUEUE_DEPTH 32 #define FD_MAX_DEVICE_QUEUE_DEPTH 128 #define FD_BLOCKSIZE 512 -#define FD_MAX_SECTORS 1024 +#define FD_MAX_SECTORS 2048 #define RRF_EMULATE_CDB 0x01 #define RRF_GOT_LBA 0x02 diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 82e78d72fdb6..e992b27aa090 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -883,7 +883,14 @@ pscsi_map_sg(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, pr_debug("PSCSI: i: %d page: %p len: %d off: %d\n", i, page, len, off); - while (len > 0 && data_len > 0) { + /* + * We only have one page of data in each sg element, + * we can not cross a page boundary. + */ + if (off + len > PAGE_SIZE) + goto fail; + + if (len > 0 && data_len > 0) { bytes = min_t(unsigned int, len, PAGE_SIZE - off); bytes = min(bytes, data_len); @@ -940,9 +947,7 @@ pscsi_map_sg(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, bio = NULL; } - len -= bytes; data_len -= bytes; - off = 0; } } diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 290230de2c53..60d4b5185f32 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -464,8 +464,11 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) break; case SYNCHRONIZE_CACHE: case SYNCHRONIZE_CACHE_16: - if (!ops->execute_sync_cache) - return TCM_UNSUPPORTED_SCSI_OPCODE; + if (!ops->execute_sync_cache) { + size = 0; + cmd->execute_cmd = sbc_emulate_noop; + break; + } /* * Extract LBA and range to be flushed for emulated SYNCHRONIZE_CACHE diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index 9169d6a5d7e4..aac9d2727e3c 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -711,7 +711,8 @@ int core_tpg_register( if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) { if (core_tpg_setup_virtual_lun0(se_tpg) < 0) { - kfree(se_tpg); + array_free(se_tpg->tpg_lun_list, + TRANSPORT_MAX_LUNS_PER_TPG); return -ENOMEM; } } diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 2030b608136d..3243ea790eab 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1139,8 +1139,10 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb) return ret; ret = target_check_reservation(cmd); - if (ret) + if (ret) { + cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT; return ret; + } ret = dev->transport->parse_cdb(cmd); if (ret) diff --git a/drivers/thermal/dove_thermal.c b/drivers/thermal/dove_thermal.c index 7b0bfa0e7a9c..3078c403b42d 100644 --- a/drivers/thermal/dove_thermal.c +++ b/drivers/thermal/dove_thermal.c @@ -143,22 +143,18 @@ static int dove_thermal_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; - priv->sensor = devm_request_and_ioremap(&pdev->dev, res); - if (!priv->sensor) { - dev_err(&pdev->dev, "Failed to request_ioremap memory\n"); - return -EADDRNOTAVAIL; - } + priv->sensor = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->sensor)) + return PTR_ERR(priv->sensor); res = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (!res) { dev_err(&pdev->dev, "Failed to get platform resource\n"); return -ENODEV; } - priv->control = devm_request_and_ioremap(&pdev->dev, res); - if (!priv->control) { - dev_err(&pdev->dev, "Failed to request_ioremap memory\n"); - return -EADDRNOTAVAIL; - } + priv->control = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->control)) + return PTR_ERR(priv->control); ret = dove_init_sensor(priv); if (ret) { diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c index e04ebd8671ac..46568c078dee 100644 --- a/drivers/thermal/exynos_thermal.c +++ b/drivers/thermal/exynos_thermal.c @@ -476,7 +476,7 @@ static int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf) if (IS_ERR(th_zone->therm_dev)) { pr_err("Failed to register thermal zone device\n"); - ret = -EINVAL; + ret = PTR_ERR(th_zone->therm_dev); goto err_unregister; } th_zone->mode = THERMAL_DEVICE_ENABLED; diff --git a/drivers/thermal/kirkwood_thermal.c b/drivers/thermal/kirkwood_thermal.c index 65cb4f09e8f6..e5500edb5285 100644 --- a/drivers/thermal/kirkwood_thermal.c +++ b/drivers/thermal/kirkwood_thermal.c @@ -85,11 +85,9 @@ static int kirkwood_thermal_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; - priv->sensor = devm_request_and_ioremap(&pdev->dev, res); - if (!priv->sensor) { - dev_err(&pdev->dev, "Failed to request_ioremap memory\n"); - return -EADDRNOTAVAIL; - } + priv->sensor = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->sensor)) + return PTR_ERR(priv->sensor); thermal = thermal_zone_device_register("kirkwood_thermal", 0, 0, priv, &ops, NULL, 0, 0); diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 28f091994013..2cc5b6115e3e 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -145,6 +145,7 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv) struct device *dev = rcar_priv_to_dev(priv); int i; int ctemp, old, new; + int ret = -EINVAL; mutex_lock(&priv->lock); @@ -174,7 +175,7 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv) if (!ctemp) { dev_err(dev, "thermal sensor was broken\n"); - return -EINVAL; + goto err_out_unlock; } /* @@ -192,10 +193,10 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv) dev_dbg(dev, "thermal%d %d -> %d\n", priv->id, priv->ctemp, ctemp); priv->ctemp = ctemp; - + ret = 0; +err_out_unlock: mutex_unlock(&priv->lock); - - return 0; + return ret; } static int rcar_thermal_get_temp(struct thermal_zone_device *zone, @@ -363,6 +364,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) struct resource *res, *irq; int mres = 0; int i; + int ret = -ENODEV; int idle = IDLE_INTERVAL; common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL); @@ -399,11 +401,9 @@ static int rcar_thermal_probe(struct platform_device *pdev) /* * rcar_has_irq_support() will be enabled */ - common->base = devm_request_and_ioremap(dev, res); - if (!common->base) { - dev_err(dev, "Unable to ioremap thermal register\n"); - return -ENOMEM; - } + common->base = devm_ioremap_resource(dev, res); + if (IS_ERR(common->base)) + return PTR_ERR(common->base); /* enable temperature comparation */ rcar_thermal_common_write(common, ENR, 0x00030303); @@ -422,11 +422,9 @@ static int rcar_thermal_probe(struct platform_device *pdev) return -ENOMEM; } - priv->base = devm_request_and_ioremap(dev, res); - if (!priv->base) { - dev_err(dev, "Unable to ioremap priv register\n"); - return -ENOMEM; - } + priv->base = devm_ioremap_resource(dev, res); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); priv->common = common; priv->id = i; @@ -441,6 +439,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) idle); if (IS_ERR(priv->zone)) { dev_err(dev, "can't register thermal zone\n"); + ret = PTR_ERR(priv->zone); goto error_unregister; } @@ -460,7 +459,7 @@ error_unregister: rcar_thermal_for_each_priv(priv, common) thermal_zone_device_unregister(priv->zone); - return -ENODEV; + return ret; } static int rcar_thermal_remove(struct platform_device *pdev) diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250_core.c index cf6a5383748a..35f9c96aada9 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -3418,6 +3418,7 @@ MODULE_PARM_DESC(probe_rsa, "Probe I/O ports for RSA"); #endif MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR); +#ifdef CONFIG_SERIAL_8250_DEPRECATED_OPTIONS #ifndef MODULE /* This module was renamed to 8250_core in 3.7. Keep the old "8250" name * working as well for the module options so we don't break people. We @@ -3432,7 +3433,7 @@ MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR); static void __used s8250_options(void) { #undef MODULE_PARAM_PREFIX -#define MODULE_PARAM_PREFIX "8250." +#define MODULE_PARAM_PREFIX "8250_core." module_param_cb(share_irqs, ¶m_ops_uint, &share_irqs, 0644); module_param_cb(nr_uarts, ¶m_ops_uint, &nr_uarts, 0644); @@ -3444,5 +3445,6 @@ static void __used s8250_options(void) #endif } #else -MODULE_ALIAS("8250"); +MODULE_ALIAS("8250_core"); +#endif #endif diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index aa76825229dc..26e3a97ab157 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1554,6 +1554,7 @@ pci_wch_ch353_setup(struct serial_private *priv, #define PCI_DEVICE_ID_PLX_CRONYX_OMEGA 0xc001 #define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d #define PCI_VENDOR_ID_WCH 0x4348 +#define PCI_DEVICE_ID_WCH_CH352_2S 0x3253 #define PCI_DEVICE_ID_WCH_CH353_4S 0x3453 #define PCI_DEVICE_ID_WCH_CH353_2S1PF 0x5046 #define PCI_DEVICE_ID_WCH_CH353_2S1P 0x7053 @@ -2172,6 +2173,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .subdevice = PCI_ANY_ID, .setup = pci_wch_ch353_setup, }, + /* WCH CH352 2S card (16550 clone) */ + { + .vendor = PCI_VENDOR_ID_WCH, + .device = PCI_DEVICE_ID_WCH_CH352_2S, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_wch_ch353_setup, + }, /* * ASIX devices with FIFO bug */ @@ -4870,6 +4879,10 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_bt_2_115200 }, + { PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH352_2S, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_b0_bt_2_115200 }, + /* * Commtech, Inc. Fastcom adapters */ diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index 2ef9537bcb2c..80fe91e64a52 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -33,6 +33,23 @@ config SERIAL_8250 Most people will say Y or M here, so that they can use serial mice, modems and similar devices connecting to the standard serial ports. +config SERIAL_8250_DEPRECATED_OPTIONS + bool "Support 8250_core.* kernel options (DEPRECATED)" + depends on SERIAL_8250 + default y + ---help--- + In 3.7 we renamed 8250 to 8250_core by mistake, so now we have to + accept kernel parameters in both forms like 8250_core.nr_uarts=4 and + 8250.nr_uarts=4. We now renamed the module back to 8250, but if + anybody noticed in 3.7 and changed their userspace we still have to + keep the 8350_core.* options around until they revert the changes + they already did. + + If 8250 is built as a module, this adds 8250_core alias instead. + + If you did not notice yet and/or you have userspace from pre-3.7, it + is safe (and recommended) to say N here. + config SERIAL_8250_PNP bool "8250/16550 PNP device support" if EXPERT depends on SERIAL_8250 && PNP diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile index a23838a4d535..36d68d054307 100644 --- a/drivers/tty/serial/8250/Makefile +++ b/drivers/tty/serial/8250/Makefile @@ -2,10 +2,10 @@ # Makefile for the 8250 serial device drivers. # -obj-$(CONFIG_SERIAL_8250) += 8250_core.o -8250_core-y := 8250.o -8250_core-$(CONFIG_SERIAL_8250_PNP) += 8250_pnp.o -8250_core-$(CONFIG_SERIAL_8250_DMA) += 8250_dma.o +obj-$(CONFIG_SERIAL_8250) += 8250.o +8250-y := 8250_core.o +8250-$(CONFIG_SERIAL_8250_PNP) += 8250_pnp.o +8250-$(CONFIG_SERIAL_8250_DMA) += 8250_dma.o obj-$(CONFIG_SERIAL_8250_GSC) += 8250_gsc.o obj-$(CONFIG_SERIAL_8250_PCI) += 8250_pci.o obj-$(CONFIG_SERIAL_8250_HP300) += 8250_hp300.o diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index d4a7c241b751..3467462869ce 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -158,7 +158,7 @@ struct atmel_uart_port { }; static struct atmel_uart_port atmel_ports[ATMEL_MAX_UART]; -static unsigned long atmel_ports_in_use; +static DECLARE_BITMAP(atmel_ports_in_use, ATMEL_MAX_UART); #ifdef SUPPORT_SYSRQ static struct console atmel_console; @@ -1769,15 +1769,14 @@ static int atmel_serial_probe(struct platform_device *pdev) if (ret < 0) /* port id not found in platform data nor device-tree aliases: * auto-enumerate it */ - ret = find_first_zero_bit(&atmel_ports_in_use, - sizeof(atmel_ports_in_use)); + ret = find_first_zero_bit(atmel_ports_in_use, ATMEL_MAX_UART); - if (ret > ATMEL_MAX_UART) { + if (ret >= ATMEL_MAX_UART) { ret = -ENODEV; goto err; } - if (test_and_set_bit(ret, &atmel_ports_in_use)) { + if (test_and_set_bit(ret, atmel_ports_in_use)) { /* port already in use */ ret = -EBUSY; goto err; @@ -1857,7 +1856,7 @@ static int atmel_serial_remove(struct platform_device *pdev) /* "port" is allocated statically, so we shouldn't free it */ - clear_bit(port->line, &atmel_ports_in_use); + clear_bit(port->line, atmel_ports_in_use); clk_put(atmel_port->clk); diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c index e343d6670854..451687cb9685 100644 --- a/drivers/tty/serial/sunsu.c +++ b/drivers/tty/serial/sunsu.c @@ -968,6 +968,7 @@ static struct uart_ops sunsu_pops = { #define UART_NR 4 static struct uart_sunsu_port sunsu_ports[UART_NR]; +static int nr_inst; /* Number of already registered ports */ #ifdef CONFIG_SERIO @@ -1337,13 +1338,8 @@ static int __init sunsu_console_setup(struct console *co, char *options) printk("Console: ttyS%d (SU)\n", (sunsu_reg.minor - 64) + co->index); - /* - * Check whether an invalid uart number has been specified, and - * if so, search for the first available port that does have - * console support. - */ - if (co->index >= UART_NR) - co->index = 0; + if (co->index > nr_inst) + return -ENODEV; port = &sunsu_ports[co->index].port; /* @@ -1408,7 +1404,6 @@ static enum su_type su_get_type(struct device_node *dp) static int su_probe(struct platform_device *op) { - static int inst; struct device_node *dp = op->dev.of_node; struct uart_sunsu_port *up; struct resource *rp; @@ -1418,16 +1413,16 @@ static int su_probe(struct platform_device *op) type = su_get_type(dp); if (type == SU_PORT_PORT) { - if (inst >= UART_NR) + if (nr_inst >= UART_NR) return -EINVAL; - up = &sunsu_ports[inst]; + up = &sunsu_ports[nr_inst]; } else { up = kzalloc(sizeof(*up), GFP_KERNEL); if (!up) return -ENOMEM; } - up->port.line = inst; + up->port.line = nr_inst; spin_lock_init(&up->port.lock); @@ -1461,6 +1456,8 @@ static int su_probe(struct platform_device *op) } dev_set_drvdata(&op->dev, up); + nr_inst++; + return 0; } @@ -1488,7 +1485,7 @@ static int su_probe(struct platform_device *op) dev_set_drvdata(&op->dev, up); - inst++; + nr_inst++; return 0; diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index ba451c7209fc..f36bbba1ac8b 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -578,6 +578,8 @@ static int xuartps_startup(struct uart_port *port) /* Receive Timeout register is enabled with value of 10 */ xuartps_writel(10, XUARTPS_RXTOUT_OFFSET); + /* Clear out any pending interrupts before enabling them */ + xuartps_writel(xuartps_readl(XUARTPS_ISR_OFFSET), XUARTPS_ISR_OFFSET); /* Set the Interrupt Registers with desired interrupts */ xuartps_writel(XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_PARITY | diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c index e4ca345873c3..d7799deacb21 100644 --- a/drivers/tty/vt/vc_screen.c +++ b/drivers/tty/vt/vc_screen.c @@ -93,7 +93,7 @@ vcs_poll_data_free(struct vcs_poll_data *poll) static struct vcs_poll_data * vcs_poll_data_get(struct file *file) { - struct vcs_poll_data *poll = file->private_data; + struct vcs_poll_data *poll = file->private_data, *kill = NULL; if (poll) return poll; @@ -122,10 +122,12 @@ vcs_poll_data_get(struct file *file) file->private_data = poll; } else { /* someone else raced ahead of us */ - vcs_poll_data_free(poll); + kill = poll; poll = file->private_data; } spin_unlock(&file->f_lock); + if (kill) + vcs_poll_data_free(kill); return poll; } diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile index d92ca325b104..4ab83e98219b 100644 --- a/drivers/usb/chipidea/Makefile +++ b/drivers/usb/chipidea/Makefile @@ -17,5 +17,5 @@ ifneq ($(CONFIG_PCI),) endif ifneq ($(CONFIG_OF_DEVICE),) - obj-$(CONFIG_USB_CHIPIDEA) += ci13xxx_imx.o usbmisc_imx6q.o + obj-$(CONFIG_USB_CHIPIDEA) += ci13xxx_imx.o usbmisc_imx.o endif diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index e25d1263da13..b0a6bce064ca 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -21,6 +21,7 @@ /****************************************************************************** * DEFINE *****************************************************************************/ +#define TD_PAGE_COUNT 5 #define CI13XXX_PAGE_SIZE 4096ul /* page size for TD's */ #define ENDPT_MAX 32 @@ -129,6 +130,7 @@ struct hw_bank { * @vbus_active: is VBUS active * @transceiver: pointer to USB PHY, if any * @hcd: pointer to usb_hcd for ehci host driver + * @debugfs: root dentry for this controller in debugfs */ struct ci13xxx { struct device *dev; @@ -139,7 +141,6 @@ struct ci13xxx { enum ci_role role; bool is_otg; struct work_struct work; - struct work_struct vbus_work; struct workqueue_struct *wq; struct dma_pool *qh_pool; @@ -165,6 +166,7 @@ struct ci13xxx { bool global_phy; struct usb_phy *transceiver; struct usb_hcd *hcd; + struct dentry *debugfs; }; static inline struct ci_role_driver *ci_role(struct ci13xxx *ci) @@ -234,19 +236,6 @@ enum ci13xxx_regs { }; /** - * ffs_nr: find first (least significant) bit set - * @x: the word to search - * - * This function returns bit number (instead of position) - */ -static inline int ffs_nr(u32 x) -{ - int n = ffs(x); - - return n ? n-1 : 32; -} - -/** * hw_read: reads from a hw register * @reg: register index * @mask: bitfield mask @@ -304,7 +293,7 @@ static inline u32 hw_test_and_write(struct ci13xxx *ci, enum ci13xxx_regs reg, u32 val = hw_read(ci, reg, ~0); hw_write(ci, reg, mask, data); - return (val & mask) >> ffs_nr(mask); + return (val & mask) >> __ffs(mask); } int hw_device_reset(struct ci13xxx *ci, u32 mode); diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c index 8c291220be7f..8faec9dbbb84 100644 --- a/drivers/usb/chipidea/ci13xxx_imx.c +++ b/drivers/usb/chipidea/ci13xxx_imx.c @@ -79,6 +79,9 @@ int usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev) if (of_find_property(np, "disable-over-current", NULL)) usbdev->disable_oc = 1; + if (of_find_property(np, "external-vbus-divider", NULL)) + usbdev->evdo = 1; + return 0; } EXPORT_SYMBOL_GPL(usbmisc_get_init_data); @@ -202,6 +205,15 @@ static int ci13xxx_imx_probe(struct platform_device *pdev) goto err; } + if (usbmisc_ops && usbmisc_ops->post) { + ret = usbmisc_ops->post(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, + "usbmisc post failed, ret=%d\n", ret); + goto put_np; + } + } + data->ci_pdev = plat_ci; platform_set_drvdata(pdev, data); diff --git a/drivers/usb/chipidea/ci13xxx_imx.h b/drivers/usb/chipidea/ci13xxx_imx.h index 9cd2e910b1ca..550bfa457620 100644 --- a/drivers/usb/chipidea/ci13xxx_imx.h +++ b/drivers/usb/chipidea/ci13xxx_imx.h @@ -13,6 +13,8 @@ struct usbmisc_ops { /* It's called once when probe a usb device */ int (*init)(struct device *dev); + /* It's called once after adding a usb device */ + int (*post)(struct device *dev); }; struct usbmisc_usb_device { @@ -20,6 +22,7 @@ struct usbmisc_usb_device { int index; unsigned int disable_oc:1; /* over current detect disabled */ + unsigned int evdo:1; /* set external vbus divider option */ }; int usbmisc_set_ops(const struct usbmisc_ops *ops); diff --git a/drivers/usb/chipidea/ci13xxx_pci.c b/drivers/usb/chipidea/ci13xxx_pci.c index 9b227e39299a..4e1fc61b9d95 100644 --- a/drivers/usb/chipidea/ci13xxx_pci.c +++ b/drivers/usb/chipidea/ci13xxx_pci.c @@ -23,17 +23,17 @@ /****************************************************************************** * PCI block *****************************************************************************/ -struct ci13xxx_platform_data pci_platdata = { +static struct ci13xxx_platform_data pci_platdata = { .name = UDC_DRIVER_NAME, .capoffset = DEF_CAPOFFSET, }; -struct ci13xxx_platform_data langwell_pci_platdata = { +static struct ci13xxx_platform_data langwell_pci_platdata = { .name = UDC_DRIVER_NAME, .capoffset = 0, }; -struct ci13xxx_platform_data penwell_pci_platdata = { +static struct ci13xxx_platform_data penwell_pci_platdata = { .name = UDC_DRIVER_NAME, .capoffset = 0, .power_budget = 200, diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 57cae1f897b2..450107e5f657 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -51,15 +51,12 @@ */ #include <linux/delay.h> #include <linux/device.h> -#include <linux/dmapool.h> #include <linux/dma-mapping.h> -#include <linux/init.h> #include <linux/platform_device.h> #include <linux/module.h> #include <linux/idr.h> #include <linux/interrupt.h> #include <linux/io.h> -#include <linux/irq.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/pm_runtime.h> @@ -158,7 +155,7 @@ int hw_port_test_set(struct ci13xxx *ci, u8 mode) if (mode > TEST_MODE_MAX) return -EINVAL; - hw_write(ci, OP_PORTSC, PORTSC_PTC, mode << ffs_nr(PORTSC_PTC)); + hw_write(ci, OP_PORTSC, PORTSC_PTC, mode << __ffs(PORTSC_PTC)); return 0; } @@ -169,7 +166,7 @@ int hw_port_test_set(struct ci13xxx *ci, u8 mode) */ u8 hw_port_test_get(struct ci13xxx *ci) { - return hw_read(ci, OP_PORTSC, PORTSC_PTC) >> ffs_nr(PORTSC_PTC); + return hw_read(ci, OP_PORTSC, PORTSC_PTC) >> __ffs(PORTSC_PTC); } static int hw_device_init(struct ci13xxx *ci, void __iomem *base) @@ -181,11 +178,11 @@ static int hw_device_init(struct ci13xxx *ci, void __iomem *base) ci->hw_bank.cap = ci->hw_bank.abs; ci->hw_bank.cap += ci->platdata->capoffset; - ci->hw_bank.op = ci->hw_bank.cap + ioread8(ci->hw_bank.cap); + ci->hw_bank.op = ci->hw_bank.cap + (ioread32(ci->hw_bank.cap) & 0xff); hw_alloc_regmap(ci, false); reg = hw_read(ci, CAP_HCCPARAMS, HCCPARAMS_LEN) >> - ffs_nr(HCCPARAMS_LEN); + __ffs(HCCPARAMS_LEN); ci->hw_bank.lpm = reg; hw_alloc_regmap(ci, !!reg); ci->hw_bank.size = ci->hw_bank.op - ci->hw_bank.abs; @@ -193,7 +190,7 @@ static int hw_device_init(struct ci13xxx *ci, void __iomem *base) ci->hw_bank.size /= sizeof(u32); reg = hw_read(ci, CAP_DCCPARAMS, DCCPARAMS_DEN) >> - ffs_nr(DCCPARAMS_DEN); + __ffs(DCCPARAMS_DEN); ci->hw_ep_max = reg * 2; /* cache hw ENDPT_MAX */ if (ci->hw_ep_max > ENDPT_MAX) @@ -283,38 +280,6 @@ static void ci_role_work(struct work_struct *work) } } -static ssize_t show_role(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct ci13xxx *ci = dev_get_drvdata(dev); - - return sprintf(buf, "%s\n", ci_role(ci)->name); -} - -static ssize_t store_role(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct ci13xxx *ci = dev_get_drvdata(dev); - enum ci_role role; - int ret; - - for (role = CI_ROLE_HOST; role < CI_ROLE_END; role++) - if (ci->roles[role] && !strcmp(buf, ci->roles[role]->name)) - break; - - if (role == CI_ROLE_END || role == ci->role) - return -EINVAL; - - ci_role_stop(ci); - ret = ci_role_start(ci, role); - if (ret) - return ret; - - return count; -} - -static DEVICE_ATTR(role, S_IRUSR | S_IWUSR, show_role, store_role); - static irqreturn_t ci_irq(int irq, void *data) { struct ci13xxx *ci = data; @@ -410,11 +375,9 @@ static int ci_hdrc_probe(struct platform_device *pdev) return -ENODEV; } - base = devm_request_and_ioremap(dev, res); - if (!base) { - dev_err(dev, "can't request and ioremap resource\n"); - return -ENOMEM; - } + base = devm_ioremap_resource(dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); ci = devm_kzalloc(dev, sizeof(*ci), GFP_KERNEL); if (!ci) { @@ -489,17 +452,14 @@ static int ci_hdrc_probe(struct platform_device *pdev) if (ret) goto stop; - ret = device_create_file(dev, &dev_attr_role); - if (ret) - goto rm_attr; - if (ci->is_otg) hw_write(ci, OP_OTGSC, OTGSC_IDIE, OTGSC_IDIE); - return ret; + ret = dbg_create_files(ci); + if (!ret) + return 0; -rm_attr: - device_remove_file(dev, &dev_attr_role); + free_irq(ci->irq, ci); stop: ci_role_stop(ci); rm_wq: @@ -513,9 +473,9 @@ static int ci_hdrc_remove(struct platform_device *pdev) { struct ci13xxx *ci = platform_get_drvdata(pdev); + dbg_remove_files(ci); flush_workqueue(ci->wq); destroy_workqueue(ci->wq); - device_remove_file(ci->dev, &dev_attr_role); free_irq(ci->irq, ci); ci_role_stop(ci); diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c index a62c4a47d52c..36a7063a6cba 100644 --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -1,590 +1,126 @@ -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/dmapool.h> -#include <linux/dma-mapping.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/irq.h> #include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/pm_runtime.h> +#include <linux/device.h> +#include <linux/types.h> +#include <linux/spinlock.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <linux/uaccess.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> -#include <linux/usb/otg.h> -#include <linux/usb/chipidea.h> #include "ci.h" #include "udc.h" #include "bits.h" #include "debug.h" -/* Interrupt statistics */ -#define ISR_MASK 0x1F -static struct isr_statistics { - u32 test; - u32 ui; - u32 uei; - u32 pci; - u32 uri; - u32 sli; - u32 none; - struct { - u32 cnt; - u32 buf[ISR_MASK+1]; - u32 idx; - } hndl; -} isr_statistics; - -void dbg_interrupt(u32 intmask) -{ - if (!intmask) { - isr_statistics.none++; - return; - } - - isr_statistics.hndl.buf[isr_statistics.hndl.idx++] = intmask; - isr_statistics.hndl.idx &= ISR_MASK; - isr_statistics.hndl.cnt++; - - if (USBi_URI & intmask) - isr_statistics.uri++; - if (USBi_PCI & intmask) - isr_statistics.pci++; - if (USBi_UEI & intmask) - isr_statistics.uei++; - if (USBi_UI & intmask) - isr_statistics.ui++; - if (USBi_SLI & intmask) - isr_statistics.sli++; -} - /** - * hw_register_read: reads all device registers (execute without interruption) - * @buf: destination buffer - * @size: buffer size - * - * This function returns number of registers read + * ci_device_show: prints information about device capabilities and status */ -static size_t hw_register_read(struct ci13xxx *ci, u32 *buf, size_t size) +static int ci_device_show(struct seq_file *s, void *data) { - unsigned i; - - if (size > ci->hw_bank.size) - size = ci->hw_bank.size; - - for (i = 0; i < size; i++) - buf[i] = hw_read(ci, i * sizeof(u32), ~0); - - return size; -} - -/** - * hw_register_write: writes to register - * @addr: register address - * @data: register value - * - * This function returns an error code - */ -static int hw_register_write(struct ci13xxx *ci, u16 addr, u32 data) -{ - /* align */ - addr /= sizeof(u32); - - if (addr >= ci->hw_bank.size) - return -EINVAL; - - /* align */ - addr *= sizeof(u32); - - hw_write(ci, addr, ~0, data); - return 0; -} - -/** - * hw_intr_clear: disables interrupt & clears interrupt status (execute without - * interruption) - * @n: interrupt bit - * - * This function returns an error code - */ -static int hw_intr_clear(struct ci13xxx *ci, int n) -{ - if (n >= REG_BITS) - return -EINVAL; - - hw_write(ci, OP_USBINTR, BIT(n), 0); - hw_write(ci, OP_USBSTS, BIT(n), BIT(n)); - return 0; -} - -/** - * hw_intr_force: enables interrupt & forces interrupt status (execute without - * interruption) - * @n: interrupt bit - * - * This function returns an error code - */ -static int hw_intr_force(struct ci13xxx *ci, int n) -{ - if (n >= REG_BITS) - return -EINVAL; - - hw_write(ci, CAP_TESTMODE, TESTMODE_FORCE, TESTMODE_FORCE); - hw_write(ci, OP_USBINTR, BIT(n), BIT(n)); - hw_write(ci, OP_USBSTS, BIT(n), BIT(n)); - hw_write(ci, CAP_TESTMODE, TESTMODE_FORCE, 0); - return 0; -} - -/** - * show_device: prints information about device capabilities and status - * - * Check "device.h" for details - */ -static ssize_t show_device(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); + struct ci13xxx *ci = s->private; struct usb_gadget *gadget = &ci->gadget; - int n = 0; - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "[%s] EINVAL\n", __func__); + seq_printf(s, "speed = %d\n", gadget->speed); + seq_printf(s, "max_speed = %d\n", gadget->max_speed); + seq_printf(s, "is_otg = %d\n", gadget->is_otg); + seq_printf(s, "is_a_peripheral = %d\n", gadget->is_a_peripheral); + seq_printf(s, "b_hnp_enable = %d\n", gadget->b_hnp_enable); + seq_printf(s, "a_hnp_support = %d\n", gadget->a_hnp_support); + seq_printf(s, "a_alt_hnp_support = %d\n", gadget->a_alt_hnp_support); + seq_printf(s, "name = %s\n", + (gadget->name ? gadget->name : "")); + + if (!ci->driver) return 0; - } - - n += scnprintf(buf + n, PAGE_SIZE - n, "speed = %d\n", - gadget->speed); - n += scnprintf(buf + n, PAGE_SIZE - n, "max_speed = %d\n", - gadget->max_speed); - n += scnprintf(buf + n, PAGE_SIZE - n, "is_otg = %d\n", - gadget->is_otg); - n += scnprintf(buf + n, PAGE_SIZE - n, "is_a_peripheral = %d\n", - gadget->is_a_peripheral); - n += scnprintf(buf + n, PAGE_SIZE - n, "b_hnp_enable = %d\n", - gadget->b_hnp_enable); - n += scnprintf(buf + n, PAGE_SIZE - n, "a_hnp_support = %d\n", - gadget->a_hnp_support); - n += scnprintf(buf + n, PAGE_SIZE - n, "a_alt_hnp_support = %d\n", - gadget->a_alt_hnp_support); - n += scnprintf(buf + n, PAGE_SIZE - n, "name = %s\n", - (gadget->name ? gadget->name : "")); - - return n; -} -static DEVICE_ATTR(device, S_IRUSR, show_device, NULL); - -/** - * show_driver: prints information about attached gadget (if any) - * - * Check "device.h" for details - */ -static ssize_t show_driver(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); - struct usb_gadget_driver *driver = ci->driver; - int n = 0; - - if (attr == NULL || buf == NULL) { - dev_err(dev, "[%s] EINVAL\n", __func__); - return 0; - } - - if (driver == NULL) - return scnprintf(buf, PAGE_SIZE, - "There is no gadget attached!\n"); - n += scnprintf(buf + n, PAGE_SIZE - n, "function = %s\n", - (driver->function ? driver->function : "")); - n += scnprintf(buf + n, PAGE_SIZE - n, "max speed = %d\n", - driver->max_speed); + seq_printf(s, "gadget function = %s\n", + (ci->driver->function ? ci->driver->function : "")); + seq_printf(s, "gadget max speed = %d\n", ci->driver->max_speed); - return n; -} -static DEVICE_ATTR(driver, S_IRUSR, show_driver, NULL); - -/* Maximum event message length */ -#define DBG_DATA_MSG 64UL - -/* Maximum event messages */ -#define DBG_DATA_MAX 128UL - -/* Event buffer descriptor */ -static struct { - char (buf[DBG_DATA_MAX])[DBG_DATA_MSG]; /* buffer */ - unsigned idx; /* index */ - unsigned tty; /* print to console? */ - rwlock_t lck; /* lock */ -} dbg_data = { - .idx = 0, - .tty = 0, - .lck = __RW_LOCK_UNLOCKED(dbg_data.lck) -}; - -/** - * dbg_dec: decrements debug event index - * @idx: buffer index - */ -static void dbg_dec(unsigned *idx) -{ - *idx = (*idx - 1) & (DBG_DATA_MAX-1); -} - -/** - * dbg_inc: increments debug event index - * @idx: buffer index - */ -static void dbg_inc(unsigned *idx) -{ - *idx = (*idx + 1) & (DBG_DATA_MAX-1); -} - -/** - * dbg_print: prints the common part of the event - * @addr: endpoint address - * @name: event name - * @status: status - * @extra: extra information - */ -static void dbg_print(u8 addr, const char *name, int status, const char *extra) -{ - struct timeval tval; - unsigned int stamp; - unsigned long flags; - - write_lock_irqsave(&dbg_data.lck, flags); - - do_gettimeofday(&tval); - stamp = tval.tv_sec & 0xFFFF; /* 2^32 = 4294967296. Limit to 4096s */ - stamp = stamp * 1000000 + tval.tv_usec; - - scnprintf(dbg_data.buf[dbg_data.idx], DBG_DATA_MSG, - "%04X\t? %02X %-7.7s %4i ?\t%s\n", - stamp, addr, name, status, extra); - - dbg_inc(&dbg_data.idx); - - write_unlock_irqrestore(&dbg_data.lck, flags); - - if (dbg_data.tty != 0) - pr_notice("%04X\t? %02X %-7.7s %4i ?\t%s\n", - stamp, addr, name, status, extra); -} - -/** - * dbg_done: prints a DONE event - * @addr: endpoint address - * @td: transfer descriptor - * @status: status - */ -void dbg_done(u8 addr, const u32 token, int status) -{ - char msg[DBG_DATA_MSG]; - - scnprintf(msg, sizeof(msg), "%d %02X", - (int)(token & TD_TOTAL_BYTES) >> ffs_nr(TD_TOTAL_BYTES), - (int)(token & TD_STATUS) >> ffs_nr(TD_STATUS)); - dbg_print(addr, "DONE", status, msg); -} - -/** - * dbg_event: prints a generic event - * @addr: endpoint address - * @name: event name - * @status: status - */ -void dbg_event(u8 addr, const char *name, int status) -{ - if (name != NULL) - dbg_print(addr, name, status, ""); -} - -/* - * dbg_queue: prints a QUEUE event - * @addr: endpoint address - * @req: USB request - * @status: status - */ -void dbg_queue(u8 addr, const struct usb_request *req, int status) -{ - char msg[DBG_DATA_MSG]; - - if (req != NULL) { - scnprintf(msg, sizeof(msg), - "%d %d", !req->no_interrupt, req->length); - dbg_print(addr, "QUEUE", status, msg); - } -} - -/** - * dbg_setup: prints a SETUP event - * @addr: endpoint address - * @req: setup request - */ -void dbg_setup(u8 addr, const struct usb_ctrlrequest *req) -{ - char msg[DBG_DATA_MSG]; - - if (req != NULL) { - scnprintf(msg, sizeof(msg), - "%02X %02X %04X %04X %d", req->bRequestType, - req->bRequest, le16_to_cpu(req->wValue), - le16_to_cpu(req->wIndex), le16_to_cpu(req->wLength)); - dbg_print(addr, "SETUP", 0, msg); - } + return 0; } -/** - * show_events: displays the event buffer - * - * Check "device.h" for details - */ -static ssize_t show_events(struct device *dev, struct device_attribute *attr, - char *buf) +static int ci_device_open(struct inode *inode, struct file *file) { - unsigned long flags; - unsigned i, j, n = 0; - - if (attr == NULL || buf == NULL) { - dev_err(dev->parent, "[%s] EINVAL\n", __func__); - return 0; - } - - read_lock_irqsave(&dbg_data.lck, flags); - - i = dbg_data.idx; - for (dbg_dec(&i); i != dbg_data.idx; dbg_dec(&i)) { - n += strlen(dbg_data.buf[i]); - if (n >= PAGE_SIZE) { - n -= strlen(dbg_data.buf[i]); - break; - } - } - for (j = 0, dbg_inc(&i); j < n; dbg_inc(&i)) - j += scnprintf(buf + j, PAGE_SIZE - j, - "%s", dbg_data.buf[i]); - - read_unlock_irqrestore(&dbg_data.lck, flags); - - return n; + return single_open(file, ci_device_show, inode->i_private); } -/** - * store_events: configure if events are going to be also printed to console - * - * Check "device.h" for details - */ -static ssize_t store_events(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - unsigned tty; - - if (attr == NULL || buf == NULL) { - dev_err(dev, "[%s] EINVAL\n", __func__); - goto done; - } - - if (sscanf(buf, "%u", &tty) != 1 || tty > 1) { - dev_err(dev, "<1|0>: enable|disable console log\n"); - goto done; - } - - dbg_data.tty = tty; - dev_info(dev, "tty = %u", dbg_data.tty); - - done: - return count; -} -static DEVICE_ATTR(events, S_IRUSR | S_IWUSR, show_events, store_events); +static const struct file_operations ci_device_fops = { + .open = ci_device_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; /** - * show_inters: interrupt status, enable status and historic - * - * Check "device.h" for details + * ci_port_test_show: reads port test mode */ -static ssize_t show_inters(struct device *dev, struct device_attribute *attr, - char *buf) +static int ci_port_test_show(struct seq_file *s, void *data) { - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); + struct ci13xxx *ci = s->private; unsigned long flags; - u32 intr; - unsigned i, j, n = 0; - - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "[%s] EINVAL\n", __func__); - return 0; - } + unsigned mode; spin_lock_irqsave(&ci->lock, flags); - - /*n += scnprintf(buf + n, PAGE_SIZE - n, - "status = %08x\n", hw_read_intr_status(ci)); - n += scnprintf(buf + n, PAGE_SIZE - n, - "enable = %08x\n", hw_read_intr_enable(ci));*/ - - n += scnprintf(buf + n, PAGE_SIZE - n, "*test = %d\n", - isr_statistics.test); - n += scnprintf(buf + n, PAGE_SIZE - n, "? ui = %d\n", - isr_statistics.ui); - n += scnprintf(buf + n, PAGE_SIZE - n, "? uei = %d\n", - isr_statistics.uei); - n += scnprintf(buf + n, PAGE_SIZE - n, "? pci = %d\n", - isr_statistics.pci); - n += scnprintf(buf + n, PAGE_SIZE - n, "? uri = %d\n", - isr_statistics.uri); - n += scnprintf(buf + n, PAGE_SIZE - n, "? sli = %d\n", - isr_statistics.sli); - n += scnprintf(buf + n, PAGE_SIZE - n, "*none = %d\n", - isr_statistics.none); - n += scnprintf(buf + n, PAGE_SIZE - n, "*hndl = %d\n", - isr_statistics.hndl.cnt); - - for (i = isr_statistics.hndl.idx, j = 0; j <= ISR_MASK; j++, i++) { - i &= ISR_MASK; - intr = isr_statistics.hndl.buf[i]; - - if (USBi_UI & intr) - n += scnprintf(buf + n, PAGE_SIZE - n, "ui "); - intr &= ~USBi_UI; - if (USBi_UEI & intr) - n += scnprintf(buf + n, PAGE_SIZE - n, "uei "); - intr &= ~USBi_UEI; - if (USBi_PCI & intr) - n += scnprintf(buf + n, PAGE_SIZE - n, "pci "); - intr &= ~USBi_PCI; - if (USBi_URI & intr) - n += scnprintf(buf + n, PAGE_SIZE - n, "uri "); - intr &= ~USBi_URI; - if (USBi_SLI & intr) - n += scnprintf(buf + n, PAGE_SIZE - n, "sli "); - intr &= ~USBi_SLI; - if (intr) - n += scnprintf(buf + n, PAGE_SIZE - n, "??? "); - if (isr_statistics.hndl.buf[i]) - n += scnprintf(buf + n, PAGE_SIZE - n, "\n"); - } - + mode = hw_port_test_get(ci); spin_unlock_irqrestore(&ci->lock, flags); - return n; -} - -/** - * store_inters: enable & force or disable an individual interrutps - * (to be used for test purposes only) - * - * Check "device.h" for details - */ -static ssize_t store_inters(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); - unsigned long flags; - unsigned en, bit; - - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "EINVAL\n"); - goto done; - } + seq_printf(s, "mode = %u\n", mode); - if (sscanf(buf, "%u %u", &en, &bit) != 2 || en > 1) { - dev_err(ci->dev, "<1|0> <bit>: enable|disable interrupt\n"); - goto done; - } - - spin_lock_irqsave(&ci->lock, flags); - if (en) { - if (hw_intr_force(ci, bit)) - dev_err(dev, "invalid bit number\n"); - else - isr_statistics.test++; - } else { - if (hw_intr_clear(ci, bit)) - dev_err(dev, "invalid bit number\n"); - } - spin_unlock_irqrestore(&ci->lock, flags); - - done: - return count; + return 0; } -static DEVICE_ATTR(inters, S_IRUSR | S_IWUSR, show_inters, store_inters); /** - * show_port_test: reads port test mode - * - * Check "device.h" for details + * ci_port_test_write: writes port test mode */ -static ssize_t show_port_test(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) { - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); + struct seq_file *s = file->private_data; + struct ci13xxx *ci = s->private; unsigned long flags; unsigned mode; + char buf[32]; + int ret; - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "EINVAL\n"); - return 0; - } + if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + if (sscanf(buf, "%u", &mode) != 1) + return -EINVAL; spin_lock_irqsave(&ci->lock, flags); - mode = hw_port_test_get(ci); + ret = hw_port_test_set(ci, mode); spin_unlock_irqrestore(&ci->lock, flags); - return scnprintf(buf, PAGE_SIZE, "mode = %u\n", mode); + return ret ? ret : count; } -/** - * store_port_test: writes port test mode - * - * Check "device.h" for details - */ -static ssize_t store_port_test(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static int ci_port_test_open(struct inode *inode, struct file *file) { - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); - unsigned long flags; - unsigned mode; - - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "[%s] EINVAL\n", __func__); - goto done; - } - - if (sscanf(buf, "%u", &mode) != 1) { - dev_err(ci->dev, "<mode>: set port test mode"); - goto done; - } - - spin_lock_irqsave(&ci->lock, flags); - if (hw_port_test_set(ci, mode)) - dev_err(ci->dev, "invalid mode\n"); - spin_unlock_irqrestore(&ci->lock, flags); - - done: - return count; + return single_open(file, ci_port_test_show, inode->i_private); } -static DEVICE_ATTR(port_test, S_IRUSR | S_IWUSR, - show_port_test, store_port_test); + +static const struct file_operations ci_port_test_fops = { + .open = ci_port_test_open, + .write = ci_port_test_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; /** - * show_qheads: DMA contents of all queue heads - * - * Check "device.h" for details + * ci_qheads_show: DMA contents of all queue heads */ -static ssize_t show_qheads(struct device *dev, struct device_attribute *attr, - char *buf) +static int ci_qheads_show(struct seq_file *s, void *data) { - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); + struct ci13xxx *ci = s->private; unsigned long flags; - unsigned i, j, n = 0; + unsigned i, j; - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "[%s] EINVAL\n", __func__); + if (ci->role != CI_ROLE_GADGET) { + seq_printf(s, "not in gadget mode\n"); return 0; } @@ -593,209 +129,173 @@ static ssize_t show_qheads(struct device *dev, struct device_attribute *attr, struct ci13xxx_ep *mEpRx = &ci->ci13xxx_ep[i]; struct ci13xxx_ep *mEpTx = &ci->ci13xxx_ep[i + ci->hw_ep_max/2]; - n += scnprintf(buf + n, PAGE_SIZE - n, - "EP=%02i: RX=%08X TX=%08X\n", - i, (u32)mEpRx->qh.dma, (u32)mEpTx->qh.dma); - for (j = 0; j < (sizeof(struct ci13xxx_qh)/sizeof(u32)); j++) { - n += scnprintf(buf + n, PAGE_SIZE - n, - " %04X: %08X %08X\n", j, - *((u32 *)mEpRx->qh.ptr + j), - *((u32 *)mEpTx->qh.ptr + j)); - } + seq_printf(s, "EP=%02i: RX=%08X TX=%08X\n", + i, (u32)mEpRx->qh.dma, (u32)mEpTx->qh.dma); + for (j = 0; j < (sizeof(struct ci13xxx_qh)/sizeof(u32)); j++) + seq_printf(s, " %04X: %08X %08X\n", j, + *((u32 *)mEpRx->qh.ptr + j), + *((u32 *)mEpTx->qh.ptr + j)); } spin_unlock_irqrestore(&ci->lock, flags); - return n; + return 0; +} + +static int ci_qheads_open(struct inode *inode, struct file *file) +{ + return single_open(file, ci_qheads_show, inode->i_private); } -static DEVICE_ATTR(qheads, S_IRUSR, show_qheads, NULL); + +static const struct file_operations ci_qheads_fops = { + .open = ci_qheads_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; /** - * show_registers: dumps all registers - * - * Check "device.h" for details + * ci_requests_show: DMA contents of all requests currently queued (all endpts) */ -#define DUMP_ENTRIES 512 -static ssize_t show_registers(struct device *dev, - struct device_attribute *attr, char *buf) +static int ci_requests_show(struct seq_file *s, void *data) { - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); + struct ci13xxx *ci = s->private; unsigned long flags; - u32 *dump; - unsigned i, k, n = 0; - - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "[%s] EINVAL\n", __func__); - return 0; - } + struct list_head *ptr = NULL; + struct ci13xxx_req *req = NULL; + unsigned i, j, qsize = sizeof(struct ci13xxx_td)/sizeof(u32); - dump = kmalloc(sizeof(u32) * DUMP_ENTRIES, GFP_KERNEL); - if (!dump) { - dev_err(ci->dev, "%s: out of memory\n", __func__); + if (ci->role != CI_ROLE_GADGET) { + seq_printf(s, "not in gadget mode\n"); return 0; } spin_lock_irqsave(&ci->lock, flags); - k = hw_register_read(ci, dump, DUMP_ENTRIES); - spin_unlock_irqrestore(&ci->lock, flags); + for (i = 0; i < ci->hw_ep_max; i++) + list_for_each(ptr, &ci->ci13xxx_ep[i].qh.queue) { + req = list_entry(ptr, struct ci13xxx_req, queue); - for (i = 0; i < k; i++) { - n += scnprintf(buf + n, PAGE_SIZE - n, - "reg[0x%04X] = 0x%08X\n", - i * (unsigned)sizeof(u32), dump[i]); - } - kfree(dump); + seq_printf(s, "EP=%02i: TD=%08X %s\n", + i % (ci->hw_ep_max / 2), (u32)req->dma, + ((i < ci->hw_ep_max/2) ? "RX" : "TX")); + + for (j = 0; j < qsize; j++) + seq_printf(s, " %04X: %08X\n", j, + *((u32 *)req->ptr + j)); + } + spin_unlock_irqrestore(&ci->lock, flags); - return n; + return 0; } -/** - * store_registers: writes value to register address - * - * Check "device.h" for details - */ -static ssize_t store_registers(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static int ci_requests_open(struct inode *inode, struct file *file) { - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); - unsigned long addr, data, flags; + return single_open(file, ci_requests_show, inode->i_private); +} - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "[%s] EINVAL\n", __func__); - goto done; - } +static const struct file_operations ci_requests_fops = { + .open = ci_requests_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; - if (sscanf(buf, "%li %li", &addr, &data) != 2) { - dev_err(ci->dev, - "<addr> <data>: write data to register address\n"); - goto done; - } +static int ci_role_show(struct seq_file *s, void *data) +{ + struct ci13xxx *ci = s->private; - spin_lock_irqsave(&ci->lock, flags); - if (hw_register_write(ci, addr, data)) - dev_err(ci->dev, "invalid address range\n"); - spin_unlock_irqrestore(&ci->lock, flags); + seq_printf(s, "%s\n", ci_role(ci)->name); - done: - return count; + return 0; } -static DEVICE_ATTR(registers, S_IRUSR | S_IWUSR, - show_registers, store_registers); -/** - * show_requests: DMA contents of all requests currently queued (all endpts) - * - * Check "device.h" for details - */ -static ssize_t show_requests(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t ci_role_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) { - struct ci13xxx *ci = container_of(dev, struct ci13xxx, gadget.dev); - unsigned long flags; - struct list_head *ptr = NULL; - struct ci13xxx_req *req = NULL; - unsigned i, j, n = 0, qSize = sizeof(struct ci13xxx_td)/sizeof(u32); - - if (attr == NULL || buf == NULL) { - dev_err(ci->dev, "[%s] EINVAL\n", __func__); - return 0; - } + struct seq_file *s = file->private_data; + struct ci13xxx *ci = s->private; + enum ci_role role; + char buf[8]; + int ret; + + if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + for (role = CI_ROLE_HOST; role < CI_ROLE_END; role++) + if (ci->roles[role] && + !strncmp(buf, ci->roles[role]->name, + strlen(ci->roles[role]->name))) + break; - spin_lock_irqsave(&ci->lock, flags); - for (i = 0; i < ci->hw_ep_max; i++) - list_for_each(ptr, &ci->ci13xxx_ep[i].qh.queue) - { - req = list_entry(ptr, struct ci13xxx_req, queue); + if (role == CI_ROLE_END || role == ci->role) + return -EINVAL; - n += scnprintf(buf + n, PAGE_SIZE - n, - "EP=%02i: TD=%08X %s\n", - i % ci->hw_ep_max/2, (u32)req->dma, - ((i < ci->hw_ep_max/2) ? "RX" : "TX")); + ci_role_stop(ci); + ret = ci_role_start(ci, role); - for (j = 0; j < qSize; j++) - n += scnprintf(buf + n, PAGE_SIZE - n, - " %04X: %08X\n", j, - *((u32 *)req->ptr + j)); - } - spin_unlock_irqrestore(&ci->lock, flags); + return ret ? ret : count; +} - return n; +static int ci_role_open(struct inode *inode, struct file *file) +{ + return single_open(file, ci_role_show, inode->i_private); } -static DEVICE_ATTR(requests, S_IRUSR, show_requests, NULL); + +static const struct file_operations ci_role_fops = { + .open = ci_role_open, + .write = ci_role_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; /** * dbg_create_files: initializes the attribute interface - * @dev: device + * @ci: device * * This function returns an error code */ -int dbg_create_files(struct device *dev) +int dbg_create_files(struct ci13xxx *ci) { - int retval = 0; - - if (dev == NULL) - return -EINVAL; - retval = device_create_file(dev, &dev_attr_device); - if (retval) - goto done; - retval = device_create_file(dev, &dev_attr_driver); - if (retval) - goto rm_device; - retval = device_create_file(dev, &dev_attr_events); - if (retval) - goto rm_driver; - retval = device_create_file(dev, &dev_attr_inters); - if (retval) - goto rm_events; - retval = device_create_file(dev, &dev_attr_port_test); - if (retval) - goto rm_inters; - retval = device_create_file(dev, &dev_attr_qheads); - if (retval) - goto rm_port_test; - retval = device_create_file(dev, &dev_attr_registers); - if (retval) - goto rm_qheads; - retval = device_create_file(dev, &dev_attr_requests); - if (retval) - goto rm_registers; - return 0; - - rm_registers: - device_remove_file(dev, &dev_attr_registers); - rm_qheads: - device_remove_file(dev, &dev_attr_qheads); - rm_port_test: - device_remove_file(dev, &dev_attr_port_test); - rm_inters: - device_remove_file(dev, &dev_attr_inters); - rm_events: - device_remove_file(dev, &dev_attr_events); - rm_driver: - device_remove_file(dev, &dev_attr_driver); - rm_device: - device_remove_file(dev, &dev_attr_device); - done: - return retval; + struct dentry *dent; + + ci->debugfs = debugfs_create_dir(dev_name(ci->dev), NULL); + if (!ci->debugfs) + return -ENOMEM; + + dent = debugfs_create_file("device", S_IRUGO, ci->debugfs, ci, + &ci_device_fops); + if (!dent) + goto err; + + dent = debugfs_create_file("port_test", S_IRUGO | S_IWUSR, ci->debugfs, + ci, &ci_port_test_fops); + if (!dent) + goto err; + + dent = debugfs_create_file("qheads", S_IRUGO, ci->debugfs, ci, + &ci_qheads_fops); + if (!dent) + goto err; + + dent = debugfs_create_file("requests", S_IRUGO, ci->debugfs, ci, + &ci_requests_fops); + if (!dent) + goto err; + + dent = debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci, + &ci_role_fops); + if (dent) + return 0; +err: + debugfs_remove_recursive(ci->debugfs); + return -ENOMEM; } /** * dbg_remove_files: destroys the attribute interface - * @dev: device - * - * This function returns an error code + * @ci: device */ -int dbg_remove_files(struct device *dev) +void dbg_remove_files(struct ci13xxx *ci) { - if (dev == NULL) - return -EINVAL; - device_remove_file(dev, &dev_attr_requests); - device_remove_file(dev, &dev_attr_registers); - device_remove_file(dev, &dev_attr_qheads); - device_remove_file(dev, &dev_attr_port_test); - device_remove_file(dev, &dev_attr_inters); - device_remove_file(dev, &dev_attr_events); - device_remove_file(dev, &dev_attr_driver); - device_remove_file(dev, &dev_attr_device); - return 0; + debugfs_remove_recursive(ci->debugfs); } diff --git a/drivers/usb/chipidea/debug.h b/drivers/usb/chipidea/debug.h index 80d96865775c..7ca6ca0a24a5 100644 --- a/drivers/usb/chipidea/debug.h +++ b/drivers/usb/chipidea/debug.h @@ -14,42 +14,16 @@ #define __DRIVERS_USB_CHIPIDEA_DEBUG_H #ifdef CONFIG_USB_CHIPIDEA_DEBUG -void dbg_interrupt(u32 intmask); -void dbg_done(u8 addr, const u32 token, int status); -void dbg_event(u8 addr, const char *name, int status); -void dbg_queue(u8 addr, const struct usb_request *req, int status); -void dbg_setup(u8 addr, const struct usb_ctrlrequest *req); -int dbg_create_files(struct device *dev); -int dbg_remove_files(struct device *dev); +int dbg_create_files(struct ci13xxx *ci); +void dbg_remove_files(struct ci13xxx *ci); #else -static inline void dbg_interrupt(u32 intmask) -{ -} - -static inline void dbg_done(u8 addr, const u32 token, int status) -{ -} - -static inline void dbg_event(u8 addr, const char *name, int status) -{ -} - -static inline void dbg_queue(u8 addr, const struct usb_request *req, int status) -{ -} - -static inline void dbg_setup(u8 addr, const struct usb_ctrlrequest *req) -{ -} - -static inline int dbg_create_files(struct device *dev) +static inline int dbg_create_files(struct ci13xxx *ci) { return 0; } -static inline int dbg_remove_files(struct device *dev) +static inline void dbg_remove_files(struct ci13xxx *ci) { - return 0; } #endif diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 9bddf3f633f1..519ead2443c5 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -13,14 +13,8 @@ #include <linux/delay.h> #include <linux/device.h> #include <linux/dmapool.h> -#include <linux/dma-mapping.h> #include <linux/err.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/irq.h> +#include <linux/irqreturn.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/pm_runtime.h> @@ -146,7 +140,7 @@ static int hw_ep_enable(struct ci13xxx *ci, int num, int dir, int type) if (dir) { mask = ENDPTCTRL_TXT; /* type */ - data = type << ffs_nr(mask); + data = type << __ffs(mask); mask |= ENDPTCTRL_TXS; /* unstall */ mask |= ENDPTCTRL_TXR; /* reset data toggle */ @@ -155,7 +149,7 @@ static int hw_ep_enable(struct ci13xxx *ci, int num, int dir, int type) data |= ENDPTCTRL_TXE; } else { mask = ENDPTCTRL_RXT; /* type */ - data = type << ffs_nr(mask); + data = type << __ffs(mask); mask |= ENDPTCTRL_RXS; /* unstall */ mask |= ENDPTCTRL_RXR; /* reset data toggle */ @@ -305,18 +299,6 @@ static u32 hw_test_and_clear_intr_active(struct ci13xxx *ci) return reg; } -static void hw_enable_vbus_intr(struct ci13xxx *ci) -{ - hw_write(ci, OP_OTGSC, OTGSC_AVVIS, OTGSC_AVVIS); - hw_write(ci, OP_OTGSC, OTGSC_AVVIE, OTGSC_AVVIE); - queue_work(ci->wq, &ci->vbus_work); -} - -static void hw_disable_vbus_intr(struct ci13xxx *ci) -{ - hw_write(ci, OP_OTGSC, OTGSC_AVVIE, 0); -} - /** * hw_test_and_clear_setup_guard: test & clear setup guard (execute without * interruption) @@ -349,7 +331,7 @@ static int hw_test_and_set_setup_guard(struct ci13xxx *ci) static void hw_usb_set_address(struct ci13xxx *ci, u8 value) { hw_write(ci, OP_DEVICEADDR, DEVICEADDR_USBADR, - value << ffs_nr(DEVICEADDR_USBADR)); + value << __ffs(DEVICEADDR_USBADR)); } /** @@ -383,16 +365,6 @@ static int hw_usb_reset(struct ci13xxx *ci) return 0; } -static void vbus_work(struct work_struct *work) -{ - struct ci13xxx *ci = container_of(work, struct ci13xxx, vbus_work); - - if (hw_read(ci, OP_OTGSC, OTGSC_AVV)) - usb_gadget_vbus_connect(&ci->gadget); - else - usb_gadget_vbus_disconnect(&ci->gadget); -} - /****************************************************************************** * UTIL block *****************************************************************************/ @@ -432,10 +404,10 @@ static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq) return -ENOMEM; memset(mReq->zptr, 0, sizeof(*mReq->zptr)); - mReq->zptr->next = TD_TERMINATE; - mReq->zptr->token = TD_STATUS_ACTIVE; + mReq->zptr->next = cpu_to_le32(TD_TERMINATE); + mReq->zptr->token = cpu_to_le32(TD_STATUS_ACTIVE); if (!mReq->req.no_interrupt) - mReq->zptr->token |= TD_IOC; + mReq->zptr->token |= cpu_to_le32(TD_IOC); } ret = usb_gadget_map_request(&ci->gadget, &mReq->req, mEp->dir); if (ret) @@ -446,32 +418,37 @@ static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq) * TODO - handle requests which spawns into several TDs */ memset(mReq->ptr, 0, sizeof(*mReq->ptr)); - mReq->ptr->token = length << ffs_nr(TD_TOTAL_BYTES); - mReq->ptr->token &= TD_TOTAL_BYTES; - mReq->ptr->token |= TD_STATUS_ACTIVE; + mReq->ptr->token = cpu_to_le32(length << __ffs(TD_TOTAL_BYTES)); + mReq->ptr->token &= cpu_to_le32(TD_TOTAL_BYTES); + mReq->ptr->token |= cpu_to_le32(TD_STATUS_ACTIVE); if (mReq->zptr) { - mReq->ptr->next = mReq->zdma; + mReq->ptr->next = cpu_to_le32(mReq->zdma); } else { - mReq->ptr->next = TD_TERMINATE; + mReq->ptr->next = cpu_to_le32(TD_TERMINATE); if (!mReq->req.no_interrupt) - mReq->ptr->token |= TD_IOC; + mReq->ptr->token |= cpu_to_le32(TD_IOC); + } + mReq->ptr->page[0] = cpu_to_le32(mReq->req.dma); + for (i = 1; i < TD_PAGE_COUNT; i++) { + u32 page = mReq->req.dma + i * CI13XXX_PAGE_SIZE; + page &= ~TD_RESERVED_MASK; + mReq->ptr->page[i] = cpu_to_le32(page); } - mReq->ptr->page[0] = mReq->req.dma; - for (i = 1; i < 5; i++) - mReq->ptr->page[i] = - (mReq->req.dma + i * CI13XXX_PAGE_SIZE) & ~TD_RESERVED_MASK; + + wmb(); if (!list_empty(&mEp->qh.queue)) { struct ci13xxx_req *mReqPrev; int n = hw_ep_bit(mEp->num, mEp->dir); int tmp_stat; + u32 next = mReq->dma & TD_ADDR_MASK; mReqPrev = list_entry(mEp->qh.queue.prev, struct ci13xxx_req, queue); if (mReqPrev->zptr) - mReqPrev->zptr->next = mReq->dma & TD_ADDR_MASK; + mReqPrev->zptr->next = cpu_to_le32(next); else - mReqPrev->ptr->next = mReq->dma & TD_ADDR_MASK; + mReqPrev->ptr->next = cpu_to_le32(next); wmb(); if (hw_read(ci, OP_ENDPTPRIME, BIT(n))) goto done; @@ -485,9 +462,9 @@ static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq) } /* QH configuration */ - mEp->qh.ptr->td.next = mReq->dma; /* TERMINATE = 0 */ - mEp->qh.ptr->td.token &= ~TD_STATUS; /* clear status */ - mEp->qh.ptr->cap |= QH_ZLT; + mEp->qh.ptr->td.next = cpu_to_le32(mReq->dma); /* TERMINATE = 0 */ + mEp->qh.ptr->td.token &= + cpu_to_le32(~(TD_STATUS_HALTED|TD_STATUS_ACTIVE)); wmb(); /* synchronize before ep prime */ @@ -506,14 +483,16 @@ done: */ static int _hardware_dequeue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq) { + u32 tmptoken = le32_to_cpu(mReq->ptr->token); + if (mReq->req.status != -EALREADY) return -EINVAL; - if ((TD_STATUS_ACTIVE & mReq->ptr->token) != 0) + if ((TD_STATUS_ACTIVE & tmptoken) != 0) return -EBUSY; if (mReq->zptr) { - if ((TD_STATUS_ACTIVE & mReq->zptr->token) != 0) + if ((cpu_to_le32(TD_STATUS_ACTIVE) & mReq->zptr->token) != 0) return -EBUSY; dma_pool_free(mEp->td_pool, mReq->zptr, mReq->zdma); mReq->zptr = NULL; @@ -523,7 +502,7 @@ static int _hardware_dequeue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq) usb_gadget_unmap_request(&mEp->ci->gadget, &mReq->req, mEp->dir); - mReq->req.status = mReq->ptr->token & TD_STATUS; + mReq->req.status = tmptoken & TD_STATUS; if ((TD_STATUS_HALTED & mReq->req.status) != 0) mReq->req.status = -1; else if ((TD_STATUS_DT_ERR & mReq->req.status) != 0) @@ -531,8 +510,8 @@ static int _hardware_dequeue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq) else if ((TD_STATUS_TR_ERR & mReq->req.status) != 0) mReq->req.status = -1; - mReq->req.actual = mReq->ptr->token & TD_TOTAL_BYTES; - mReq->req.actual >>= ffs_nr(TD_TOTAL_BYTES); + mReq->req.actual = tmptoken & TD_TOTAL_BYTES; + mReq->req.actual >>= __ffs(TD_TOTAL_BYTES); mReq->req.actual = mReq->req.length - mReq->req.actual; mReq->req.actual = mReq->req.status ? 0 : mReq->req.actual; @@ -561,6 +540,12 @@ __acquires(mEp->lock) struct ci13xxx_req *mReq = \ list_entry(mEp->qh.queue.next, struct ci13xxx_req, queue); + + if (mReq->zptr) { + dma_pool_free(mEp->td_pool, mReq->zptr, mReq->zdma); + mReq->zptr = NULL; + } + list_del_init(&mReq->queue); mReq->req.status = -ESHUTDOWN; @@ -629,8 +614,6 @@ __acquires(ci->lock) { int retval; - dbg_event(0xFF, "BUS RST", 0); - spin_unlock(&ci->lock); retval = _gadget_stop_activity(&ci->gadget); if (retval) @@ -668,6 +651,59 @@ static void isr_get_status_complete(struct usb_ep *ep, struct usb_request *req) } /** + * _ep_queue: queues (submits) an I/O request to an endpoint + * + * Caller must hold lock + */ +static int _ep_queue(struct usb_ep *ep, struct usb_request *req, + gfp_t __maybe_unused gfp_flags) +{ + struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep); + struct ci13xxx_req *mReq = container_of(req, struct ci13xxx_req, req); + struct ci13xxx *ci = mEp->ci; + int retval = 0; + + if (ep == NULL || req == NULL || mEp->ep.desc == NULL) + return -EINVAL; + + if (mEp->type == USB_ENDPOINT_XFER_CONTROL) { + if (req->length) + mEp = (ci->ep0_dir == RX) ? + ci->ep0out : ci->ep0in; + if (!list_empty(&mEp->qh.queue)) { + _ep_nuke(mEp); + retval = -EOVERFLOW; + dev_warn(mEp->ci->dev, "endpoint ctrl %X nuked\n", + _usb_addr(mEp)); + } + } + + /* first nuke then test link, e.g. previous status has not sent */ + if (!list_empty(&mReq->queue)) { + dev_err(mEp->ci->dev, "request already in queue\n"); + return -EBUSY; + } + + if (req->length > (TD_PAGE_COUNT - 1) * CI13XXX_PAGE_SIZE) { + dev_err(mEp->ci->dev, "request bigger than one td\n"); + return -EMSGSIZE; + } + + /* push request */ + mReq->req.status = -EINPROGRESS; + mReq->req.actual = 0; + + retval = _hardware_enqueue(mEp, mReq); + + if (retval == -EALREADY) + retval = 0; + if (!retval) + list_add_tail(&mReq->queue, &mEp->qh.queue); + + return retval; +} + +/** * isr_get_status_response: get_status request response * @ci: ci struct * @setup: setup request packet @@ -714,9 +750,7 @@ __acquires(mEp->lock) } /* else do nothing; reserved for future use */ - spin_unlock(mEp->lock); - retval = usb_ep_queue(&mEp->ep, req, gfp_flags); - spin_lock(mEp->lock); + retval = _ep_queue(&mEp->ep, req, gfp_flags); if (retval) goto err_free_buf; @@ -763,8 +797,6 @@ isr_setup_status_complete(struct usb_ep *ep, struct usb_request *req) * This function returns an error code */ static int isr_setup_status_phase(struct ci13xxx *ci) -__releases(mEp->lock) -__acquires(mEp->lock) { int retval; struct ci13xxx_ep *mEp; @@ -773,9 +805,7 @@ __acquires(mEp->lock) ci->status->context = ci; ci->status->complete = isr_setup_status_complete; - spin_unlock(mEp->lock); - retval = usb_ep_queue(&mEp->ep, ci->status, GFP_ATOMIC); - spin_lock(mEp->lock); + retval = _ep_queue(&mEp->ep, ci->status, GFP_ATOMIC); return retval; } @@ -801,7 +831,6 @@ __acquires(mEp->lock) if (retval < 0) break; list_del_init(&mReq->queue); - dbg_done(_usb_addr(mEp), mReq->ptr->token, retval); if (mReq->req.complete != NULL) { spin_unlock(mEp->lock); if ((mEp->type == USB_ENDPOINT_XFER_CONTROL) && @@ -814,8 +843,6 @@ __acquires(mEp->lock) if (retval == -EBUSY) retval = 0; - if (retval < 0) - dbg_event(_usb_addr(mEp), "DONE", retval); return retval; } @@ -847,8 +874,6 @@ __acquires(ci->lock) if (err > 0) /* needs status phase */ err = isr_setup_status_phase(ci); if (err < 0) { - dbg_event(_usb_addr(mEp), - "ERROR", err); spin_unlock(&ci->lock); if (usb_ep_set_halt(&mEp->ep)) dev_err(ci->dev, @@ -884,8 +909,6 @@ __acquires(ci->lock) ci->ep0_dir = (type & USB_DIR_IN) ? TX : RX; - dbg_setup(_usb_addr(mEp), &req); - switch (req.bRequest) { case USB_REQ_CLEAR_FEATURE: if (type == (USB_DIR_OUT|USB_RECIP_ENDPOINT) && @@ -997,8 +1020,6 @@ delegate: } if (err < 0) { - dbg_event(_usb_addr(mEp), "ERROR", err); - spin_unlock(&ci->lock); if (usb_ep_set_halt(&mEp->ep)) dev_err(ci->dev, "error: ep_set_halt\n"); @@ -1021,6 +1042,7 @@ static int ep_enable(struct usb_ep *ep, struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep); int retval = 0; unsigned long flags; + u32 cap = 0; if (ep == NULL || desc == NULL) return -EINVAL; @@ -1040,20 +1062,15 @@ static int ep_enable(struct usb_ep *ep, mEp->ep.maxpacket = usb_endpoint_maxp(desc); - dbg_event(_usb_addr(mEp), "ENABLE", 0); - - mEp->qh.ptr->cap = 0; - if (mEp->type == USB_ENDPOINT_XFER_CONTROL) - mEp->qh.ptr->cap |= QH_IOS; - else if (mEp->type == USB_ENDPOINT_XFER_ISOC) - mEp->qh.ptr->cap &= ~QH_MULT; - else - mEp->qh.ptr->cap &= ~QH_ZLT; + cap |= QH_IOS; + if (mEp->num) + cap |= QH_ZLT; + cap |= (mEp->ep.maxpacket << __ffs(QH_MAX_PKT)) & QH_MAX_PKT; + + mEp->qh.ptr->cap = cpu_to_le32(cap); - mEp->qh.ptr->cap |= - (mEp->ep.maxpacket << ffs_nr(QH_MAX_PKT)) & QH_MAX_PKT; - mEp->qh.ptr->td.next |= TD_TERMINATE; /* needed? */ + mEp->qh.ptr->td.next |= cpu_to_le32(TD_TERMINATE); /* needed? */ /* * Enable endpoints in the HW other than ep0 as ep0 @@ -1088,8 +1105,6 @@ static int ep_disable(struct usb_ep *ep) direction = mEp->dir; do { - dbg_event(_usb_addr(mEp), "DISABLE", 0); - retval |= _ep_nuke(mEp); retval |= hw_ep_disable(mEp->ci, mEp->num, mEp->dir); @@ -1129,8 +1144,6 @@ static struct usb_request *ep_alloc_request(struct usb_ep *ep, gfp_t gfp_flags) } } - dbg_event(_usb_addr(mEp), "ALLOC", mReq == NULL); - return (mReq == NULL) ? NULL : &mReq->req; } @@ -1158,8 +1171,6 @@ static void ep_free_request(struct usb_ep *ep, struct usb_request *req) dma_pool_free(mEp->td_pool, mReq->ptr, mReq->dma); kfree(mReq); - dbg_event(_usb_addr(mEp), "FREE", 0); - spin_unlock_irqrestore(mEp->lock, flags); } @@ -1172,8 +1183,6 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req, gfp_t __maybe_unused gfp_flags) { struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep); - struct ci13xxx_req *mReq = container_of(req, struct ci13xxx_req, req); - struct ci13xxx *ci = mEp->ci; int retval = 0; unsigned long flags; @@ -1181,48 +1190,7 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req, return -EINVAL; spin_lock_irqsave(mEp->lock, flags); - - if (mEp->type == USB_ENDPOINT_XFER_CONTROL) { - if (req->length) - mEp = (ci->ep0_dir == RX) ? - ci->ep0out : ci->ep0in; - if (!list_empty(&mEp->qh.queue)) { - _ep_nuke(mEp); - retval = -EOVERFLOW; - dev_warn(mEp->ci->dev, "endpoint ctrl %X nuked\n", - _usb_addr(mEp)); - } - } - - /* first nuke then test link, e.g. previous status has not sent */ - if (!list_empty(&mReq->queue)) { - retval = -EBUSY; - dev_err(mEp->ci->dev, "request already in queue\n"); - goto done; - } - - if (req->length > 4 * CI13XXX_PAGE_SIZE) { - req->length = 4 * CI13XXX_PAGE_SIZE; - retval = -EMSGSIZE; - dev_warn(mEp->ci->dev, "request length truncated\n"); - } - - dbg_queue(_usb_addr(mEp), req, retval); - - /* push request */ - mReq->req.status = -EINPROGRESS; - mReq->req.actual = 0; - - retval = _hardware_enqueue(mEp, mReq); - - if (retval == -EALREADY) { - dbg_event(_usb_addr(mEp), "QUEUE", retval); - retval = 0; - } - if (!retval) - list_add_tail(&mReq->queue, &mEp->qh.queue); - - done: + retval = _ep_queue(ep, req, gfp_flags); spin_unlock_irqrestore(mEp->lock, flags); return retval; } @@ -1245,8 +1213,6 @@ static int ep_dequeue(struct usb_ep *ep, struct usb_request *req) spin_lock_irqsave(mEp->lock, flags); - dbg_event(_usb_addr(mEp), "DEQUEUE", 0); - hw_ep_flush(mEp->ci, mEp->num, mEp->dir); /* pop request */ @@ -1293,7 +1259,6 @@ static int ep_set_halt(struct usb_ep *ep, int value) direction = mEp->dir; do { - dbg_event(_usb_addr(mEp), "HALT", value); retval |= hw_ep_set_halt(mEp->ci, mEp->num, mEp->dir, value); if (!value) @@ -1322,10 +1287,7 @@ static int ep_set_wedge(struct usb_ep *ep) return -EINVAL; spin_lock_irqsave(mEp->lock, flags); - - dbg_event(_usb_addr(mEp), "WEDGE", 0); mEp->wedge = 1; - spin_unlock_irqrestore(mEp->lock, flags); return usb_ep_set_halt(ep); @@ -1348,7 +1310,6 @@ static void ep_fifo_flush(struct usb_ep *ep) spin_lock_irqsave(mEp->lock, flags); - dbg_event(_usb_addr(mEp), "FFLUSH", 0); hw_ep_flush(mEp->ci, mEp->num, mEp->dir); spin_unlock_irqrestore(mEp->lock, flags); @@ -1392,7 +1353,6 @@ static int ci13xxx_vbus_session(struct usb_gadget *_gadget, int is_active) if (is_active) { pm_runtime_get_sync(&_gadget->dev); hw_device_reset(ci, USBMODE_CM_DC); - hw_enable_vbus_intr(ci); hw_device_state(ci, ci->ep0out->qh.dma); } else { hw_device_state(ci, 0); @@ -1567,10 +1527,8 @@ static int ci13xxx_start(struct usb_gadget *gadget, pm_runtime_get_sync(&ci->gadget.dev); if (ci->platdata->flags & CI13XXX_PULLUP_ON_VBUS) { if (ci->vbus_active) { - if (ci->platdata->flags & CI13XXX_REGS_SHARED) { + if (ci->platdata->flags & CI13XXX_REGS_SHARED) hw_device_reset(ci, USBMODE_CM_DC); - hw_enable_vbus_intr(ci); - } } else { pm_runtime_put_sync(&ci->gadget.dev); goto done; @@ -1642,7 +1600,6 @@ static irqreturn_t udc_irq(struct ci13xxx *ci) } } intr = hw_test_and_clear_intr_active(ci); - dbg_interrupt(intr); if (intr) { /* order defines priority - do NOT change it */ @@ -1676,13 +1633,6 @@ static irqreturn_t udc_irq(struct ci13xxx *ci) } else { retval = IRQ_NONE; } - - intr = hw_read(ci, OP_OTGSC, ~0); - hw_write(ci, OP_OTGSC, ~0, intr); - - if (intr & (OTGSC_AVVIE & OTGSC_AVVIS)) - queue_work(ci->wq, &ci->vbus_work); - spin_unlock(&ci->lock); return retval; @@ -1742,18 +1692,13 @@ static int udc_start(struct ci13xxx *ci) retval = hw_device_reset(ci, USBMODE_CM_DC); if (retval) goto put_transceiver; - hw_enable_vbus_intr(ci); } - retval = dbg_create_files(ci->dev); - if (retval) - goto put_transceiver; - if (!IS_ERR_OR_NULL(ci->transceiver)) { retval = otg_set_peripheral(ci->transceiver->otg, &ci->gadget); if (retval) - goto remove_dbg; + goto put_transceiver; } retval = usb_add_gadget_udc(dev, &ci->gadget); @@ -1773,8 +1718,6 @@ remove_trans: } dev_err(dev, "error = %i\n", retval); -remove_dbg: - dbg_remove_files(ci->dev); put_transceiver: if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy) usb_put_phy(ci->transceiver); @@ -1797,9 +1740,6 @@ static void udc_stop(struct ci13xxx *ci) if (ci == NULL) return; - hw_disable_vbus_intr(ci); - cancel_work_sync(&ci->vbus_work); - usb_del_gadget_udc(&ci->gadget); destroy_eps(ci); @@ -1812,7 +1752,6 @@ static void udc_stop(struct ci13xxx *ci) if (ci->global_phy) usb_put_phy(ci->transceiver); } - dbg_remove_files(ci->dev); /* my kobject is dynamic, I swear! */ memset(&ci->gadget, 0, sizeof(ci->gadget)); } @@ -1839,7 +1778,6 @@ int ci_hdrc_gadget_init(struct ci13xxx *ci) rdrv->irq = udc_irq; rdrv->name = "gadget"; ci->roles[CI_ROLE_GADGET] = rdrv; - INIT_WORK(&ci->vbus_work, vbus_work); return 0; } diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h index 4ff2384d7ca8..d12e8b59b110 100644 --- a/drivers/usb/chipidea/udc.h +++ b/drivers/usb/chipidea/udc.h @@ -40,7 +40,7 @@ struct ci13xxx_td { #define TD_CURR_OFFSET (0x0FFFUL << 0) #define TD_FRAME_NUM (0x07FFUL << 0) #define TD_RESERVED_MASK (0x0FFFUL << 0) -} __attribute__ ((packed)); +} __attribute__ ((packed, aligned(4))); /* DMA layout of queue heads */ struct ci13xxx_qh { @@ -57,7 +57,7 @@ struct ci13xxx_qh { /* 9 */ u32 RESERVED; struct usb_ctrlrequest setup; -} __attribute__ ((packed)); +} __attribute__ ((packed, aligned(4))); /** * struct ci13xxx_req - usb request representation diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c new file mode 100644 index 000000000000..714a6bd810ed --- /dev/null +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -0,0 +1,261 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/delay.h> + +#include "ci13xxx_imx.h" + +#define USB_DEV_MAX 4 + +#define MX25_USB_PHY_CTRL_OFFSET 0x08 +#define MX25_BM_EXTERNAL_VBUS_DIVIDER BIT(23) + +#define MX53_USB_OTG_PHY_CTRL_0_OFFSET 0x08 +#define MX53_USB_UH2_CTRL_OFFSET 0x14 +#define MX53_USB_UH3_CTRL_OFFSET 0x18 +#define MX53_BM_OVER_CUR_DIS_H1 BIT(5) +#define MX53_BM_OVER_CUR_DIS_OTG BIT(8) +#define MX53_BM_OVER_CUR_DIS_UHx BIT(30) + +#define MX6_BM_OVER_CUR_DIS BIT(7) + +struct imx_usbmisc { + void __iomem *base; + spinlock_t lock; + struct clk *clk; + struct usbmisc_usb_device usbdev[USB_DEV_MAX]; + const struct usbmisc_ops *ops; +}; + +static struct imx_usbmisc *usbmisc; + +static struct usbmisc_usb_device *get_usbdev(struct device *dev) +{ + int i, ret; + + for (i = 0; i < USB_DEV_MAX; i++) { + if (usbmisc->usbdev[i].dev == dev) + return &usbmisc->usbdev[i]; + else if (!usbmisc->usbdev[i].dev) + break; + } + + if (i >= USB_DEV_MAX) + return ERR_PTR(-EBUSY); + + ret = usbmisc_get_init_data(dev, &usbmisc->usbdev[i]); + if (ret) + return ERR_PTR(ret); + + return &usbmisc->usbdev[i]; +} + +static int usbmisc_imx25_post(struct device *dev) +{ + struct usbmisc_usb_device *usbdev; + void __iomem *reg; + unsigned long flags; + u32 val; + + usbdev = get_usbdev(dev); + if (IS_ERR(usbdev)) + return PTR_ERR(usbdev); + + reg = usbmisc->base + MX25_USB_PHY_CTRL_OFFSET; + + if (usbdev->evdo) { + spin_lock_irqsave(&usbmisc->lock, flags); + val = readl(reg); + writel(val | MX25_BM_EXTERNAL_VBUS_DIVIDER, reg); + spin_unlock_irqrestore(&usbmisc->lock, flags); + usleep_range(5000, 10000); /* needed to stabilize voltage */ + } + + return 0; +} + +static int usbmisc_imx53_init(struct device *dev) +{ + struct usbmisc_usb_device *usbdev; + void __iomem *reg = NULL; + unsigned long flags; + u32 val = 0; + + usbdev = get_usbdev(dev); + if (IS_ERR(usbdev)) + return PTR_ERR(usbdev); + + if (usbdev->disable_oc) { + spin_lock_irqsave(&usbmisc->lock, flags); + switch (usbdev->index) { + case 0: + reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET; + val = readl(reg) | MX53_BM_OVER_CUR_DIS_OTG; + break; + case 1: + reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET; + val = readl(reg) | MX53_BM_OVER_CUR_DIS_H1; + break; + case 2: + reg = usbmisc->base + MX53_USB_UH2_CTRL_OFFSET; + val = readl(reg) | MX53_BM_OVER_CUR_DIS_UHx; + break; + case 3: + reg = usbmisc->base + MX53_USB_UH3_CTRL_OFFSET; + val = readl(reg) | MX53_BM_OVER_CUR_DIS_UHx; + break; + } + if (reg && val) + writel(val, reg); + spin_unlock_irqrestore(&usbmisc->lock, flags); + } + + return 0; +} + +static int usbmisc_imx6q_init(struct device *dev) +{ + + struct usbmisc_usb_device *usbdev; + unsigned long flags; + u32 reg; + + usbdev = get_usbdev(dev); + if (IS_ERR(usbdev)) + return PTR_ERR(usbdev); + + if (usbdev->disable_oc) { + spin_lock_irqsave(&usbmisc->lock, flags); + reg = readl(usbmisc->base + usbdev->index * 4); + writel(reg | MX6_BM_OVER_CUR_DIS, + usbmisc->base + usbdev->index * 4); + spin_unlock_irqrestore(&usbmisc->lock, flags); + } + + return 0; +} + +static const struct usbmisc_ops imx25_usbmisc_ops = { + .post = usbmisc_imx25_post, +}; + +static const struct usbmisc_ops imx53_usbmisc_ops = { + .init = usbmisc_imx53_init, +}; + +static const struct usbmisc_ops imx6q_usbmisc_ops = { + .init = usbmisc_imx6q_init, +}; + +static const struct of_device_id usbmisc_imx_dt_ids[] = { + { + .compatible = "fsl,imx25-usbmisc", + .data = &imx25_usbmisc_ops, + }, + { + .compatible = "fsl,imx53-usbmisc", + .data = &imx53_usbmisc_ops, + }, + { + .compatible = "fsl,imx6q-usbmisc", + .data = &imx6q_usbmisc_ops, + }, + { /* sentinel */ } +}; + +static int usbmisc_imx_probe(struct platform_device *pdev) +{ + struct resource *res; + struct imx_usbmisc *data; + int ret; + struct of_device_id *tmp_dev; + + if (usbmisc) + return -EBUSY; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + spin_lock_init(&data->lock); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + data->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(data->base)) + return PTR_ERR(data->base); + + data->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(data->clk)) { + dev_err(&pdev->dev, + "failed to get clock, err=%ld\n", PTR_ERR(data->clk)); + return PTR_ERR(data->clk); + } + + ret = clk_prepare_enable(data->clk); + if (ret) { + dev_err(&pdev->dev, + "clk_prepare_enable failed, err=%d\n", ret); + return ret; + } + + tmp_dev = (struct of_device_id *) + of_match_device(usbmisc_imx_dt_ids, &pdev->dev); + data->ops = (const struct usbmisc_ops *)tmp_dev->data; + usbmisc = data; + ret = usbmisc_set_ops(data->ops); + if (ret) { + usbmisc = NULL; + clk_disable_unprepare(data->clk); + return ret; + } + + return 0; +} + +static int usbmisc_imx_remove(struct platform_device *pdev) +{ + usbmisc_unset_ops(usbmisc->ops); + clk_disable_unprepare(usbmisc->clk); + usbmisc = NULL; + return 0; +} + +static struct platform_driver usbmisc_imx_driver = { + .probe = usbmisc_imx_probe, + .remove = usbmisc_imx_remove, + .driver = { + .name = "usbmisc_imx", + .owner = THIS_MODULE, + .of_match_table = usbmisc_imx_dt_ids, + }, +}; + +int usbmisc_imx_drv_init(void) +{ + return platform_driver_register(&usbmisc_imx_driver); +} +subsys_initcall(usbmisc_imx_drv_init); + +void usbmisc_imx_drv_exit(void) +{ + platform_driver_unregister(&usbmisc_imx_driver); +} +module_exit(usbmisc_imx_drv_exit); + +MODULE_ALIAS("platform:usbmisc-imx"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("driver for imx usb non-core registers"); +MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>"); diff --git a/drivers/usb/chipidea/usbmisc_imx6q.c b/drivers/usb/chipidea/usbmisc_imx6q.c deleted file mode 100644 index a1bce391e825..000000000000 --- a/drivers/usb/chipidea/usbmisc_imx6q.c +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Copyright 2012 Freescale Semiconductor, Inc. - * - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - -#include <linux/module.h> -#include <linux/of_platform.h> -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/io.h> - -#include "ci13xxx_imx.h" - -#define USB_DEV_MAX 4 - -#define BM_OVER_CUR_DIS BIT(7) - -struct imx6q_usbmisc { - void __iomem *base; - spinlock_t lock; - struct clk *clk; - struct usbmisc_usb_device usbdev[USB_DEV_MAX]; -}; - -static struct imx6q_usbmisc *usbmisc; - -static struct usbmisc_usb_device *get_usbdev(struct device *dev) -{ - int i, ret; - - for (i = 0; i < USB_DEV_MAX; i++) { - if (usbmisc->usbdev[i].dev == dev) - return &usbmisc->usbdev[i]; - else if (!usbmisc->usbdev[i].dev) - break; - } - - if (i >= USB_DEV_MAX) - return ERR_PTR(-EBUSY); - - ret = usbmisc_get_init_data(dev, &usbmisc->usbdev[i]); - if (ret) - return ERR_PTR(ret); - - return &usbmisc->usbdev[i]; -} - -static int usbmisc_imx6q_init(struct device *dev) -{ - - struct usbmisc_usb_device *usbdev; - unsigned long flags; - u32 reg; - - usbdev = get_usbdev(dev); - if (IS_ERR(usbdev)) - return PTR_ERR(usbdev); - - if (usbdev->disable_oc) { - spin_lock_irqsave(&usbmisc->lock, flags); - reg = readl(usbmisc->base + usbdev->index * 4); - writel(reg | BM_OVER_CUR_DIS, - usbmisc->base + usbdev->index * 4); - spin_unlock_irqrestore(&usbmisc->lock, flags); - } - - return 0; -} - -static const struct usbmisc_ops imx6q_usbmisc_ops = { - .init = usbmisc_imx6q_init, -}; - -static const struct of_device_id usbmisc_imx6q_dt_ids[] = { - { .compatible = "fsl,imx6q-usbmisc"}, - { /* sentinel */ } -}; - -static int usbmisc_imx6q_probe(struct platform_device *pdev) -{ - struct resource *res; - struct imx6q_usbmisc *data; - int ret; - - if (usbmisc) - return -EBUSY; - - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - spin_lock_init(&data->lock); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - data->base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(data->base)) - return PTR_ERR(data->base); - - data->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(data->clk)) { - dev_err(&pdev->dev, - "failed to get clock, err=%ld\n", PTR_ERR(data->clk)); - return PTR_ERR(data->clk); - } - - ret = clk_prepare_enable(data->clk); - if (ret) { - dev_err(&pdev->dev, - "clk_prepare_enable failed, err=%d\n", ret); - return ret; - } - - ret = usbmisc_set_ops(&imx6q_usbmisc_ops); - if (ret) { - clk_disable_unprepare(data->clk); - return ret; - } - - usbmisc = data; - - return 0; -} - -static int usbmisc_imx6q_remove(struct platform_device *pdev) -{ - usbmisc_unset_ops(&imx6q_usbmisc_ops); - clk_disable_unprepare(usbmisc->clk); - return 0; -} - -static struct platform_driver usbmisc_imx6q_driver = { - .probe = usbmisc_imx6q_probe, - .remove = usbmisc_imx6q_remove, - .driver = { - .name = "usbmisc_imx6q", - .owner = THIS_MODULE, - .of_match_table = usbmisc_imx6q_dt_ids, - }, -}; - -int __init usbmisc_imx6q_drv_init(void) -{ - return platform_driver_register(&usbmisc_imx6q_driver); -} -subsys_initcall(usbmisc_imx6q_drv_init); - -void __exit usbmisc_imx6q_drv_exit(void) -{ - platform_driver_unregister(&usbmisc_imx6q_driver); -} -module_exit(usbmisc_imx6q_drv_exit); - -MODULE_ALIAS("platform:usbmisc-imx6q"); -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("driver for imx6q usb non-core registers"); -MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>"); diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 8ac25adf31b4..6d4e0b96f89d 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -593,7 +593,6 @@ static void acm_port_destruct(struct tty_port *port) dev_dbg(&acm->control->dev, "%s\n", __func__); - tty_unregister_device(acm_tty_driver, acm->minor); acm_release_minor(acm); usb_put_intf(acm->control); kfree(acm->country_codes); @@ -840,14 +839,6 @@ static int acm_tty_ioctl(struct tty_struct *tty, return rv; } -static const __u32 acm_tty_speed[] = { - 0, 50, 75, 110, 134, 150, 200, 300, 600, - 1200, 1800, 2400, 4800, 9600, 19200, 38400, - 57600, 115200, 230400, 460800, 500000, 576000, - 921600, 1000000, 1152000, 1500000, 2000000, - 2500000, 3000000, 3500000, 4000000 -}; - static void acm_tty_set_termios(struct tty_struct *tty, struct ktermios *termios_old) { @@ -977,6 +968,8 @@ static int acm_probe(struct usb_interface *intf, int num_rx_buf; int i; int combined_interfaces = 0; + struct device *tty_dev; + int rv = -ENOMEM; /* normal quirks */ quirks = (unsigned long)id->driver_info; @@ -1339,11 +1332,24 @@ skip_countries: usb_set_intfdata(data_interface, acm); usb_get_intf(control_interface); - tty_port_register_device(&acm->port, acm_tty_driver, minor, + tty_dev = tty_port_register_device(&acm->port, acm_tty_driver, minor, &control_interface->dev); + if (IS_ERR(tty_dev)) { + rv = PTR_ERR(tty_dev); + goto alloc_fail8; + } return 0; +alloc_fail8: + if (acm->country_codes) { + device_remove_file(&acm->control->dev, + &dev_attr_wCountryCodes); + device_remove_file(&acm->control->dev, + &dev_attr_iCountryCodeRelDate); + } + device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); alloc_fail7: + usb_set_intfdata(intf, NULL); for (i = 0; i < ACM_NW; i++) usb_free_urb(acm->wb[i].urb); alloc_fail6: @@ -1359,7 +1365,7 @@ alloc_fail2: acm_release_minor(acm); kfree(acm); alloc_fail: - return -ENOMEM; + return rv; } static void stop_data_traffic(struct acm *acm) @@ -1411,6 +1417,8 @@ static void acm_disconnect(struct usb_interface *intf) stop_data_traffic(acm); + tty_unregister_device(acm_tty_driver, acm->minor); + usb_free_urb(acm->ctrlurb); for (i = 0; i < ACM_NW; i++) usb_free_urb(acm->wb[i].urb); diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 122d056d96d5..8a230f0ef77c 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -13,6 +13,7 @@ */ #include <linux/kernel.h> #include <linux/errno.h> +#include <linux/ioctl.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/mutex.h> @@ -644,6 +645,22 @@ static int wdm_release(struct inode *inode, struct file *file) return 0; } +static long wdm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + struct wdm_device *desc = file->private_data; + int rv = 0; + + switch (cmd) { + case IOCTL_WDM_MAX_COMMAND: + if (copy_to_user((void __user *)arg, &desc->wMaxCommand, sizeof(desc->wMaxCommand))) + rv = -EFAULT; + break; + default: + rv = -ENOTTY; + } + return rv; +} + static const struct file_operations wdm_fops = { .owner = THIS_MODULE, .read = wdm_read, @@ -652,6 +669,8 @@ static const struct file_operations wdm_fops = { .flush = wdm_flush, .release = wdm_release, .poll = wdm_poll, + .unlocked_ioctl = wdm_ioctl, + .compat_ioctl = wdm_ioctl, .llseek = noop_llseek, }; diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index f70c1a1694ad..7b7305e3abc8 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -27,6 +27,22 @@ config USB_ANNOUNCE_NEW_DEVICES comment "Miscellaneous USB options" depends on USB +config USB_DEFAULT_PERSIST + bool "Enable USB persist by default" + depends on USB + default y + help + Say N here if you don't want USB power session persistance + enabled by default. If you say N it will make suspended USB + devices that lose power get reenumerated as if they had been + unplugged, causing any mounted filesystems to be lost. The + persist feature can still be enabled for individual devices + through the power/persist sysfs node. See + Documentation/usb/persist.txt for more info. + + If you have any questions about this, say Y here, only say N + if you know exactly what you are doing. + config USB_DYNAMIC_MINORS bool "Dynamic USB minor allocation" depends on USB @@ -38,22 +54,6 @@ config USB_DYNAMIC_MINORS If you are unsure about this, say N here. -config USB_SUSPEND - bool "USB runtime power management (autosuspend) and wakeup" - depends on USB && PM_RUNTIME - help - If you say Y here, you can use driver calls or the sysfs - "power/control" file to enable or disable autosuspend for - individual USB peripherals (see - Documentation/usb/power-management.txt for more details). - - Also, USB "remote wakeup" signaling is supported, whereby some - USB devices (like keyboards and network adapters) can wake up - their parent hub. That wakeup cascades up the USB tree, and - could wake the system from states like suspend-to-RAM. - - If you are unsure about this, say N here. - config USB_OTG bool "OTG support" depends on USB diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index d938b2b99e31..6eab440e1542 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1196,9 +1196,14 @@ done: * * This is the central routine for suspending USB devices. It calls the * suspend methods for all the interface drivers in @udev and then calls - * the suspend method for @udev itself. If an error occurs at any stage, - * all the interfaces which were suspended are resumed so that they remain - * in the same state as the device. + * the suspend method for @udev itself. When the routine is called in + * autosuspend, if an error occurs at any stage, all the interfaces + * which were suspended are resumed so that they remain in the same + * state as the device, but when called from system sleep, all error + * from suspend methods of interfaces and the non-root-hub device itself + * are simply ignored, so all suspended interfaces are only resumed + * to the device's state when @udev is root-hub and its suspend method + * returns failure. * * Autosuspend requests originating from a child device or an interface * driver may be made without the protection of @udev's device lock, but @@ -1248,10 +1253,12 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) /* If the suspend failed, resume interfaces that did get suspended */ if (status != 0) { - msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME); - while (++i < n) { - intf = udev->actconfig->interface[i]; - usb_resume_interface(udev, intf, msg, 0); + if (udev->actconfig) { + msg.event ^= (PM_EVENT_SUSPEND | PM_EVENT_RESUME); + while (++i < n) { + intf = udev->actconfig->interface[i]; + usb_resume_interface(udev, intf, msg, 0); + } } /* If the suspend succeeded then prevent any more URB submissions @@ -1407,7 +1414,7 @@ int usb_resume(struct device *dev, pm_message_t msg) #endif /* CONFIG_PM */ -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME /** * usb_enable_autosuspend - allow a USB device to be autosuspended @@ -1775,7 +1782,7 @@ int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) return ret; } -#endif /* CONFIG_USB_SUSPEND */ +#endif /* CONFIG_PM_RUNTIME */ struct bus_type usb_bus_type = { .name = "usb", diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index 271e761f563e..acbfeb0a0119 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -169,7 +169,7 @@ static int generic_probe(struct usb_device *udev) c = usb_choose_configuration(udev); if (c >= 0) { err = usb_set_configuration(udev, c); - if (err) { + if (err && err != -ENODEV) { dev_err(&udev->dev, "can't set config #%d, error %d\n", c, err); /* This need not be fatal. The user can try to diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 622b4a48e732..caeb8d6d39fb 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -37,119 +37,123 @@ /* PCI-based HCs are common, but plenty of non-PCI HCs are used too */ -#ifdef CONFIG_PM_SLEEP - -/* Coordinate handoffs between EHCI and companion controllers - * during system resume +/* + * Coordinate handoffs between EHCI and companion controllers + * during EHCI probing and system resume. */ -static DEFINE_MUTEX(companions_mutex); +static DECLARE_RWSEM(companions_rwsem); #define CL_UHCI PCI_CLASS_SERIAL_USB_UHCI #define CL_OHCI PCI_CLASS_SERIAL_USB_OHCI #define CL_EHCI PCI_CLASS_SERIAL_USB_EHCI -enum companion_action { - SET_HS_COMPANION, CLEAR_HS_COMPANION, WAIT_FOR_COMPANIONS -}; +static inline int is_ohci_or_uhci(struct pci_dev *pdev) +{ + return pdev->class == CL_OHCI || pdev->class == CL_UHCI; +} + +typedef void (*companion_fn)(struct pci_dev *pdev, struct usb_hcd *hcd, + struct pci_dev *companion, struct usb_hcd *companion_hcd); -static void companion_common(struct pci_dev *pdev, struct usb_hcd *hcd, - enum companion_action action) +/* Iterate over PCI devices in the same slot as pdev and call fn for each */ +static void for_each_companion(struct pci_dev *pdev, struct usb_hcd *hcd, + companion_fn fn) { struct pci_dev *companion; struct usb_hcd *companion_hcd; unsigned int slot = PCI_SLOT(pdev->devfn); - /* Iterate through other PCI functions in the same slot. - * If pdev is OHCI or UHCI then we are looking for EHCI, and - * vice versa. + /* + * Iterate through other PCI functions in the same slot. + * If the function's drvdata isn't set then it isn't bound to + * a USB host controller driver, so skip it. */ companion = NULL; for_each_pci_dev(companion) { if (companion->bus != pdev->bus || PCI_SLOT(companion->devfn) != slot) continue; - companion_hcd = pci_get_drvdata(companion); if (!companion_hcd) continue; - - /* For SET_HS_COMPANION, store a pointer to the EHCI bus in - * the OHCI/UHCI companion bus structure. - * For CLEAR_HS_COMPANION, clear the pointer to the EHCI bus - * in the OHCI/UHCI companion bus structure. - * For WAIT_FOR_COMPANIONS, wait until the OHCI/UHCI - * companion controllers have fully resumed. - */ - - if ((pdev->class == CL_OHCI || pdev->class == CL_UHCI) && - companion->class == CL_EHCI) { - /* action must be SET_HS_COMPANION */ - dev_dbg(&companion->dev, "HS companion for %s\n", - dev_name(&pdev->dev)); - hcd->self.hs_companion = &companion_hcd->self; - - } else if (pdev->class == CL_EHCI && - (companion->class == CL_OHCI || - companion->class == CL_UHCI)) { - switch (action) { - case SET_HS_COMPANION: - dev_dbg(&pdev->dev, "HS companion for %s\n", - dev_name(&companion->dev)); - companion_hcd->self.hs_companion = &hcd->self; - break; - case CLEAR_HS_COMPANION: - companion_hcd->self.hs_companion = NULL; - break; - case WAIT_FOR_COMPANIONS: - device_pm_wait_for_dev(&pdev->dev, - &companion->dev); - break; - } - } + fn(pdev, hcd, companion, companion_hcd); } } -static void set_hs_companion(struct pci_dev *pdev, struct usb_hcd *hcd) +/* + * We're about to add an EHCI controller, which will unceremoniously grab + * all the port connections away from its companions. To prevent annoying + * error messages, lock the companion's root hub and gracefully unconfigure + * it beforehand. Leave it locked until the EHCI controller is all set. + */ +static void ehci_pre_add(struct pci_dev *pdev, struct usb_hcd *hcd, + struct pci_dev *companion, struct usb_hcd *companion_hcd) { - mutex_lock(&companions_mutex); - dev_set_drvdata(&pdev->dev, hcd); - companion_common(pdev, hcd, SET_HS_COMPANION); - mutex_unlock(&companions_mutex); + struct usb_device *udev; + + if (is_ohci_or_uhci(companion)) { + udev = companion_hcd->self.root_hub; + usb_lock_device(udev); + usb_set_configuration(udev, 0); + } } -static void clear_hs_companion(struct pci_dev *pdev, struct usb_hcd *hcd) +/* + * Adding the EHCI controller has either succeeded or failed. Set the + * companion pointer accordingly, and in either case, reconfigure and + * unlock the root hub. + */ +static void ehci_post_add(struct pci_dev *pdev, struct usb_hcd *hcd, + struct pci_dev *companion, struct usb_hcd *companion_hcd) { - mutex_lock(&companions_mutex); - dev_set_drvdata(&pdev->dev, NULL); + struct usb_device *udev; - /* If pdev is OHCI or UHCI, just clear its hs_companion pointer */ - if (pdev->class == CL_OHCI || pdev->class == CL_UHCI) - hcd->self.hs_companion = NULL; + if (is_ohci_or_uhci(companion)) { + if (dev_get_drvdata(&pdev->dev)) { /* Succeeded */ + dev_dbg(&pdev->dev, "HS companion for %s\n", + dev_name(&companion->dev)); + companion_hcd->self.hs_companion = &hcd->self; + } + udev = companion_hcd->self.root_hub; + usb_set_configuration(udev, 1); + usb_unlock_device(udev); + } +} - /* Otherwise search for companion buses and clear their pointers */ - else - companion_common(pdev, hcd, CLEAR_HS_COMPANION); - mutex_unlock(&companions_mutex); +/* + * We just added a non-EHCI controller. Find the EHCI controller to + * which it is a companion, and store a pointer to the bus structure. + */ +static void non_ehci_add(struct pci_dev *pdev, struct usb_hcd *hcd, + struct pci_dev *companion, struct usb_hcd *companion_hcd) +{ + if (is_ohci_or_uhci(pdev) && companion->class == CL_EHCI) { + dev_dbg(&pdev->dev, "FS/LS companion for %s\n", + dev_name(&companion->dev)); + hcd->self.hs_companion = &companion_hcd->self; + } } -static void wait_for_companions(struct pci_dev *pdev, struct usb_hcd *hcd) +/* We are removing an EHCI controller. Clear the companions' pointers. */ +static void ehci_remove(struct pci_dev *pdev, struct usb_hcd *hcd, + struct pci_dev *companion, struct usb_hcd *companion_hcd) { - /* Only EHCI controllers need to wait. - * No locking is needed because a controller cannot be resumed - * while one of its companions is getting unbound. - */ - if (pdev->class == CL_EHCI) - companion_common(pdev, hcd, WAIT_FOR_COMPANIONS); + if (is_ohci_or_uhci(companion)) + companion_hcd->self.hs_companion = NULL; } -#else /* !CONFIG_PM_SLEEP */ +#ifdef CONFIG_PM -static inline void set_hs_companion(struct pci_dev *d, struct usb_hcd *h) {} -static inline void clear_hs_companion(struct pci_dev *d, struct usb_hcd *h) {} -static inline void wait_for_companions(struct pci_dev *d, struct usb_hcd *h) {} +/* An EHCI controller must wait for its companions before resuming. */ +static void ehci_wait_for_companions(struct pci_dev *pdev, struct usb_hcd *hcd, + struct pci_dev *companion, struct usb_hcd *companion_hcd) +{ + if (is_ohci_or_uhci(companion)) + device_pm_wait_for_dev(&pdev->dev, &companion->dev); +} -#endif /* !CONFIG_PM_SLEEP */ +#endif /* CONFIG_PM */ /*-------------------------------------------------------------------------*/ @@ -173,6 +177,7 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) struct hc_driver *driver; struct usb_hcd *hcd; int retval; + int hcd_irq = 0; if (usb_disabled()) return -ENODEV; @@ -187,15 +192,19 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) return -ENODEV; dev->current_state = PCI_D0; - /* The xHCI driver supports MSI and MSI-X, - * so don't fail if the BIOS doesn't provide a legacy IRQ. + /* + * The xHCI driver has its own irq management + * make sure irq setup is not touched for xhci in generic hcd code */ - if (!dev->irq && (driver->flags & HCD_MASK) != HCD_USB3) { - dev_err(&dev->dev, - "Found HC with no IRQ. Check BIOS/PCI %s setup!\n", - pci_name(dev)); - retval = -ENODEV; - goto disable_pci; + if ((driver->flags & HCD_MASK) != HCD_USB3) { + if (!dev->irq) { + dev_err(&dev->dev, + "Found HC with no IRQ. Check BIOS/PCI %s setup!\n", + pci_name(dev)); + retval = -ENODEV; + goto disable_pci; + } + hcd_irq = dev->irq; } hcd = usb_create_hcd(driver, &dev->dev, pci_name(dev)); @@ -212,7 +221,7 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) driver->description)) { dev_dbg(&dev->dev, "controller already in use\n"); retval = -EBUSY; - goto clear_companion; + goto put_hcd; } hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); if (hcd->regs == NULL) { @@ -239,16 +248,35 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) if (region == PCI_ROM_RESOURCE) { dev_dbg(&dev->dev, "no i/o regions available\n"); retval = -EBUSY; - goto clear_companion; + goto put_hcd; } } pci_set_master(dev); - retval = usb_add_hcd(hcd, dev->irq, IRQF_SHARED); + /* Note: dev_set_drvdata must be called while holding the rwsem */ + if (dev->class == CL_EHCI) { + down_write(&companions_rwsem); + dev_set_drvdata(&dev->dev, hcd); + for_each_companion(dev, hcd, ehci_pre_add); + retval = usb_add_hcd(hcd, hcd_irq, IRQF_SHARED); + if (retval != 0) + dev_set_drvdata(&dev->dev, NULL); + for_each_companion(dev, hcd, ehci_post_add); + up_write(&companions_rwsem); + } else { + down_read(&companions_rwsem); + dev_set_drvdata(&dev->dev, hcd); + retval = usb_add_hcd(hcd, hcd_irq, IRQF_SHARED); + if (retval != 0) + dev_set_drvdata(&dev->dev, NULL); + else + for_each_companion(dev, hcd, non_ehci_add); + up_read(&companions_rwsem); + } + if (retval != 0) goto unmap_registers; - set_hs_companion(dev, hcd); if (pci_dev_run_wake(dev)) pm_runtime_put_noidle(&dev->dev); @@ -261,8 +289,7 @@ release_mem_region: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); } else release_region(hcd->rsrc_start, hcd->rsrc_len); -clear_companion: - clear_hs_companion(dev, hcd); +put_hcd: usb_put_hcd(hcd); disable_pci: pci_disable_device(dev); @@ -305,14 +332,29 @@ void usb_hcd_pci_remove(struct pci_dev *dev) usb_hcd_irq(0, hcd); local_irq_enable(); - usb_remove_hcd(hcd); + /* Note: dev_set_drvdata must be called while holding the rwsem */ + if (dev->class == CL_EHCI) { + down_write(&companions_rwsem); + for_each_companion(dev, hcd, ehci_remove); + usb_remove_hcd(hcd); + dev_set_drvdata(&dev->dev, NULL); + up_write(&companions_rwsem); + } else { + /* Not EHCI; just clear the companion pointer */ + down_read(&companions_rwsem); + hcd->self.hs_companion = NULL; + usb_remove_hcd(hcd); + dev_set_drvdata(&dev->dev, NULL); + up_read(&companions_rwsem); + } + if (hcd->driver->flags & HCD_MEMORY) { iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); } else { release_region(hcd->rsrc_start, hcd->rsrc_len); } - clear_hs_companion(dev, hcd); + usb_put_hcd(hcd); pci_disable_device(dev); } @@ -458,8 +500,15 @@ static int resume_common(struct device *dev, int event) pci_set_master(pci_dev); if (hcd->driver->pci_resume && !HCD_DEAD(hcd)) { - if (event != PM_EVENT_AUTO_RESUME) - wait_for_companions(pci_dev, hcd); + + /* + * Only EHCI controllers have to wait for their companions. + * No locking is needed because PCI controller drivers do not + * get unbound during system resume. + */ + if (pci_dev->class == CL_EHCI && event != PM_EVENT_AUTO_RESUME) + for_each_companion(pci_dev, hcd, + ehci_wait_for_companions); retval = hcd->driver->pci_resume(hcd, event == PM_EVENT_RESTORE); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 99b34a30354f..d53547d2e4c7 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2125,7 +2125,7 @@ int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg) #endif /* CONFIG_PM */ -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME /* Workqueue routine for root-hub remote wakeup */ static void hcd_resume_work(struct work_struct *work) @@ -2160,7 +2160,7 @@ void usb_hcd_resume_root_hub (struct usb_hcd *hcd) } EXPORT_SYMBOL_GPL(usb_hcd_resume_root_hub); -#endif /* CONFIG_USB_SUSPEND */ +#endif /* CONFIG_PM_RUNTIME */ /*-------------------------------------------------------------------------*/ @@ -2336,7 +2336,7 @@ struct usb_hcd *usb_create_shared_hcd(const struct hc_driver *driver, init_timer(&hcd->rh_timer); hcd->rh_timer.function = rh_timer_func; hcd->rh_timer.data = (unsigned long) hcd; -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME INIT_WORK(&hcd->wakeup_work, hcd_resume_work); #endif @@ -2412,6 +2412,14 @@ int usb_hcd_is_primary_hcd(struct usb_hcd *hcd) } EXPORT_SYMBOL_GPL(usb_hcd_is_primary_hcd); +int usb_hcd_find_raw_port_number(struct usb_hcd *hcd, int port1) +{ + if (!hcd->driver->find_raw_port_number) + return port1; + + return hcd->driver->find_raw_port_number(hcd, port1); +} + static int usb_hcd_request_irqs(struct usb_hcd *hcd, unsigned int irqnum, unsigned long irqflags) { @@ -2582,7 +2590,7 @@ error_create_attr_group: hcd->rh_registered = 0; spin_unlock_irq(&hcd_root_hub_lock); -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME cancel_work_sync(&hcd->wakeup_work); #endif mutex_lock(&usb_bus_list_lock); @@ -2637,7 +2645,7 @@ void usb_remove_hcd(struct usb_hcd *hcd) hcd->rh_registered = 0; spin_unlock_irq (&hcd_root_hub_lock); -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME cancel_work_sync(&hcd->wakeup_work); #endif diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 5480352f984d..feef9351463d 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -555,8 +555,9 @@ static int hub_port_status(struct usb_hub *hub, int port1, mutex_lock(&hub->status_mutex); ret = get_port_status(hub->hdev, port1, &hub->status->port); if (ret < 4) { - dev_err(hub->intfdev, - "%s failed (err = %d)\n", __func__, ret); + if (ret != -ENODEV) + dev_err(hub->intfdev, + "%s failed (err = %d)\n", __func__, ret); if (ret >= 0) ret = -EIO; } else { @@ -699,7 +700,7 @@ static void hub_tt_work(struct work_struct *work) /* drop lock so HCD can concurrently report other TT errors */ spin_unlock_irqrestore (&hub->tt.lock, flags); status = hub_clear_tt_buffer (hdev, clear->devinfo, clear->tt); - if (status) + if (status && status != -ENODEV) dev_err (&hdev->dev, "clear tt %d (%04x) error %d\n", clear->tt, clear->devinfo, status); @@ -837,10 +838,11 @@ static int hub_hub_status(struct usb_hub *hub, mutex_lock(&hub->status_mutex); ret = get_hub_status(hub->hdev, &hub->status->hub); - if (ret < 0) - dev_err (hub->intfdev, - "%s failed (err = %d)\n", __func__, ret); - else { + if (ret < 0) { + if (ret != -ENODEV) + dev_err(hub->intfdev, + "%s failed (err = %d)\n", __func__, ret); + } else { *status = le16_to_cpu(hub->status->hub.wHubStatus); *change = le16_to_cpu(hub->status->hub.wHubChange); ret = 0; @@ -877,11 +879,8 @@ static int hub_usb3_port_disable(struct usb_hub *hub, int port1) return -EINVAL; ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED); - if (ret) { - dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n", - port1, ret); + if (ret) return ret; - } /* Wait for the link to enter the disabled state. */ for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) { @@ -918,7 +917,7 @@ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state) ret = usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE); } - if (ret) + if (ret && ret != -ENODEV) dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n", port1, ret); return ret; @@ -1317,6 +1316,10 @@ static int hub_configure(struct usb_hub *hub, message = "hub has too many ports!"; ret = -ENODEV; goto fail; + } else if (hub->descriptor->bNbrPorts == 0) { + message = "hub doesn't have any ports!"; + ret = -ENODEV; + goto fail; } hdev->maxchild = hub->descriptor->bNbrPorts; @@ -2192,8 +2195,9 @@ static int usb_enumerate_device(struct usb_device *udev) if (udev->config == NULL) { err = usb_get_configuration(udev); if (err < 0) { - dev_err(&udev->dev, "can't read configurations, error %d\n", - err); + if (err != -ENODEV) + dev_err(&udev->dev, "can't read configurations, error %d\n", + err); return err; } } @@ -2640,14 +2644,16 @@ static int hub_port_reset(struct usb_hub *hub, int port1, status = set_port_feature(hub->hdev, port1, (warm ? USB_PORT_FEAT_BH_PORT_RESET : USB_PORT_FEAT_RESET)); - if (status) { + if (status == -ENODEV) { + ; /* The hub is gone */ + } else if (status) { dev_err(hub->intfdev, "cannot %sreset port %d (err = %d)\n", warm ? "warm " : "", port1, status); } else { status = hub_port_wait_reset(hub, port1, udev, delay, warm); - if (status && status != -ENOTCONN) + if (status && status != -ENOTCONN && status != -ENODEV) dev_dbg(hub->intfdev, "port_wait_reset: err = %d\n", status); @@ -2821,7 +2827,7 @@ void usb_enable_ltm(struct usb_device *udev) } EXPORT_SYMBOL_GPL(usb_enable_ltm); -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM /* * usb_disable_function_remotewakeup - disable usb3.0 * device's function remote wakeup @@ -2880,9 +2886,11 @@ static int usb_disable_function_remotewakeup(struct usb_device *udev) * Linux (2.6) currently has NO mechanisms to initiate that: no khubd * timer, no SRP, no requests through sysfs. * - * If CONFIG_USB_SUSPEND isn't enabled, devices only really suspend when - * the root hub for their bus goes into global suspend ... so we don't - * (falsely) update the device power state to say it suspended. + * If Runtime PM isn't enabled or used, non-SuperSpeed devices really get + * suspended only when their bus goes into global suspend (i.e., the root + * hub is suspended). Nevertheless, we change @udev->state to + * USB_STATE_SUSPENDED as this is the device's "logical" state. The actual + * upstream port setting is stored in @udev->port_is_suspended. * * Returns 0 on success, else negative errno. */ @@ -2893,6 +2901,7 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) enum pm_qos_flags_status pm_qos_stat; int port1 = udev->portnum; int status; + bool really_suspend = true; /* enable remote wakeup when appropriate; this lets the device * wake up the upstream hub (including maybe the root hub). @@ -2949,9 +2958,19 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) /* see 7.1.7.6 */ if (hub_is_superspeed(hub->hdev)) status = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_U3); - else + else if (PMSG_IS_AUTO(msg)) status = set_port_feature(hub->hdev, port1, USB_PORT_FEAT_SUSPEND); + /* + * For system suspend, we do not need to enable the suspend feature + * on individual USB-2 ports. The devices will automatically go + * into suspend a few ms after the root hub stops sending packets. + * The USB 2.0 spec calls this "global suspend". + */ + else { + really_suspend = false; + status = 0; + } if (status) { dev_dbg(hub->intfdev, "can't suspend port %d, status %d\n", port1, status); @@ -2987,8 +3006,10 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) (PMSG_IS_AUTO(msg) ? "auto-" : ""), udev->do_remote_wakeup); usb_set_device_state(udev, USB_STATE_SUSPENDED); - udev->port_is_suspended = 1; - msleep(10); + if (really_suspend) { + udev->port_is_suspended = 1; + msleep(10); + } } /* @@ -3226,6 +3247,10 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg) return status; } +#endif /* CONFIG_PM */ + +#ifdef CONFIG_PM_RUNTIME + /* caller has locked udev */ int usb_remote_wakeup(struct usb_device *udev) { @@ -3242,38 +3267,6 @@ int usb_remote_wakeup(struct usb_device *udev) return status; } -#else /* CONFIG_USB_SUSPEND */ - -/* When CONFIG_USB_SUSPEND isn't set, we never suspend or resume any ports. */ - -int usb_port_suspend(struct usb_device *udev, pm_message_t msg) -{ - return 0; -} - -/* However we may need to do a reset-resume */ - -int usb_port_resume(struct usb_device *udev, pm_message_t msg) -{ - struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); - int port1 = udev->portnum; - int status; - u16 portchange, portstatus; - - status = hub_port_status(hub, port1, &portstatus, &portchange); - status = check_port_resume_type(udev, - hub, port1, status, portchange, portstatus); - - if (status) { - dev_dbg(&udev->dev, "can't resume, status %d\n", status); - hub_port_logical_disconnect(hub, port1); - } else if (udev->reset_resume) { - dev_dbg(&udev->dev, "reset-resume\n"); - status = usb_reset_and_verify_device(udev); - } - return status; -} - #endif static int check_ports_changed(struct usb_hub *hub) @@ -4090,9 +4083,9 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, goto fail; } if (r) { - dev_err(&udev->dev, - "device descriptor read/64, error %d\n", - r); + if (r != -ENODEV) + dev_err(&udev->dev, "device descriptor read/64, error %d\n", + r); retval = -EMSGSIZE; continue; } @@ -4112,9 +4105,9 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, msleep(200); } if (retval < 0) { - dev_err(&udev->dev, - "device not accepting address %d, error %d\n", - devnum, retval); + if (retval != -ENODEV) + dev_err(&udev->dev, "device not accepting address %d, error %d\n", + devnum, retval); goto fail; } if (udev->speed == USB_SPEED_SUPER) { @@ -4136,7 +4129,8 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, retval = usb_get_device_descriptor(udev, 8); if (retval < 8) { - dev_err(&udev->dev, + if (retval != -ENODEV) + dev_err(&udev->dev, "device descriptor read/8, error %d\n", retval); if (retval >= 0) @@ -4190,8 +4184,9 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE); if (retval < (signed)sizeof(udev->descriptor)) { - dev_err(&udev->dev, "device descriptor read/all, error %d\n", - retval); + if (retval != -ENODEV) + dev_err(&udev->dev, "device descriptor read/all, error %d\n", + retval); if (retval >= 0) retval = -ENOMSG; goto fail; @@ -4333,7 +4328,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, if (portstatus & USB_PORT_STAT_ENABLE) { status = 0; /* Nothing to do */ -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME } else if (udev->state == USB_STATE_SUSPENDED && udev->persist_enabled) { /* For a suspended device, treat this as a @@ -4373,7 +4368,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, USB_PORT_STAT_C_ENABLE)) { status = hub_port_debounce_be_stable(hub, port1); if (status < 0) { - if (printk_ratelimit()) + if (status != -ENODEV && printk_ratelimit()) dev_err(hub_dev, "connect-debounce failed, " "port %d disabled\n", port1); portstatus &= ~USB_PORT_STAT_CONNECTION; @@ -4402,6 +4397,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, else unit_load = 100; + status = 0; for (i = 0; i < SET_CONFIG_TRIES; i++) { /* reallocate for each attempt, since references @@ -4526,9 +4522,11 @@ loop: } if (hub->hdev->parent || !hcd->driver->port_handed_over || - !(hcd->driver->port_handed_over)(hcd, port1)) - dev_err(hub_dev, "unable to enumerate USB device on port %d\n", - port1); + !(hcd->driver->port_handed_over)(hcd, port1)) { + if (status != -ENOTCONN && status != -ENODEV) + dev_err(hub_dev, "unable to enumerate USB device on port %d\n", + port1); + } done: hub_port_disable(hub, port1, 1); diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c index 797f9d514732..06c4894bf181 100644 --- a/drivers/usb/core/port.c +++ b/drivers/usb/core/port.c @@ -71,7 +71,7 @@ static void usb_port_device_release(struct device *dev) kfree(port_dev); } -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME static int usb_port_runtime_resume(struct device *dev) { struct usb_port *port_dev = to_usb_port(dev); @@ -139,7 +139,7 @@ static int usb_port_runtime_suspend(struct device *dev) #endif static const struct dev_pm_ops usb_port_pm_ops = { -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME .runtime_suspend = usb_port_runtime_suspend, .runtime_resume = usb_port_runtime_resume, .runtime_idle = pm_generic_runtime_idle, diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 3113c1d71442..ab5638d9c707 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -201,20 +201,14 @@ void usb_detect_quirks(struct usb_device *udev) dev_dbg(&udev->dev, "USB quirks for this device: %x\n", udev->quirks); - /* For the present, all devices default to USB-PERSIST enabled */ -#if 0 /* was: #ifdef CONFIG_PM */ - /* Hubs are automatically enabled for USB-PERSIST */ - if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) +#ifdef CONFIG_USB_DEFAULT_PERSIST + if (!(udev->quirks & USB_QUIRK_RESET)) udev->persist_enabled = 1; - #else - /* In the absence of PM, we can safely enable USB-PERSIST - * for all devices. It will affect things like hub resets - * and EMF-related port disables. - */ - if (!(udev->quirks & USB_QUIRK_RESET)) + /* Hubs are automatically enabled for USB-PERSIST */ + if (udev->descriptor.bDeviceClass == USB_CLASS_HUB) udev->persist_enabled = 1; -#endif /* CONFIG_PM */ +#endif /* CONFIG_USB_DEFAULT_PERSIST */ } void usb_detect_interface_quirks(struct usb_device *udev) diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 3f81a3dc6867..aa38db44818a 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -338,7 +338,7 @@ static void remove_persist_attributes(struct device *dev) #endif /* CONFIG_PM */ -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME static ssize_t show_connected_duration(struct device *dev, struct device_attribute *attr, @@ -544,7 +544,7 @@ static void remove_power_attributes(struct device *dev) #define add_power_attributes(dev) 0 #define remove_power_attributes(dev) do {} while (0) -#endif /* CONFIG_USB_SUSPEND */ +#endif /* CONFIG_PM_RUNTIME */ /* Descriptor fields */ diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index e0d9d948218c..16927fa88fbd 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -683,10 +683,13 @@ EXPORT_SYMBOL_GPL(usb_kill_urb); void usb_poison_urb(struct urb *urb) { might_sleep(); - if (!(urb && urb->dev && urb->ep)) + if (!urb) return; atomic_inc(&urb->reject); + if (!urb->dev || !urb->ep) + return; + usb_hcd_unlink_urb(urb, -ENOENT); wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); } diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c index b6f4bad3f756..255c14464bf2 100644 --- a/drivers/usb/core/usb-acpi.c +++ b/drivers/usb/core/usb-acpi.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/acpi.h> #include <linux/pci.h> +#include <linux/usb/hcd.h> #include <acpi/acpi_bus.h> #include "usb.h" @@ -188,8 +189,13 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle) * connected to. */ if (!udev->parent) { - *handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev), + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + int raw_port_num; + + raw_port_num = usb_hcd_find_raw_port_number(hcd, port_num); + *handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev), + raw_port_num); if (!*handle) return -ENODEV; } else { diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index f81b92572735..03eb7ae8fc1a 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -49,7 +49,7 @@ const char *usbcore_name = "usbcore"; static bool nousb; /* Disable USB when built into kernel image */ -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME static int usb_autosuspend_delay = 2; /* Default delay value, * in seconds */ module_param_named(autosuspend, usb_autosuspend_delay, int, 0644); @@ -307,7 +307,7 @@ static const struct dev_pm_ops usb_device_pm_ops = { .thaw = usb_dev_thaw, .poweroff = usb_dev_poweroff, .restore = usb_dev_restore, -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME .runtime_suspend = usb_runtime_suspend, .runtime_resume = usb_runtime_resume, .runtime_idle = usb_runtime_idle, diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index a7f20bde0e5e..823857767a16 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -93,7 +93,7 @@ static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) #endif -#ifdef CONFIG_USB_SUSPEND +#ifdef CONFIG_PM_RUNTIME extern void usb_autosuspend_device(struct usb_device *udev); extern int usb_autoresume_device(struct usb_device *udev); diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 86d5d804f1eb..a61d981cbd15 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -145,6 +145,7 @@ config USB_LPC32XX tristate "LPC32XX USB Peripheral Controller" depends on ARCH_LPC32XX select USB_ISP1301 + select USB_OTG_UTILS help This option selects the USB device controller in the LPC32xx SoC. diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 970c9057757f..36e8c44d8e5e 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -447,14 +447,13 @@ static void rndis_response_complete(struct usb_ep *ep, struct usb_request *req) static void rndis_command_complete(struct usb_ep *ep, struct usb_request *req) { struct f_rndis *rndis = req->context; - struct usb_composite_dev *cdev = rndis->port.func.config->cdev; int status; /* received RNDIS command from USB_CDC_SEND_ENCAPSULATED_COMMAND */ // spin_lock(&dev->lock); status = rndis_msg_parser(rndis->config, (u8 *) req->buf); if (status < 0) - ERROR(cdev, "RNDIS command error %d, %d/%d\n", + pr_err("RNDIS command error %d, %d/%d\n", status, req->actual, req->length); // spin_unlock(&dev->lock); } diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index a07dd177e845..787a78e92aa2 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -363,7 +363,7 @@ static int gfs_bind(struct usb_composite_dev *cdev) goto error; gfs_dev_desc.iProduct = gfs_strings[USB_GADGET_PRODUCT_IDX].id; - for (i = func_num; --i; ) { + for (i = func_num; i--; ) { ret = functionfs_bind(ffs_tab[i].ffs_data, cdev); if (unlikely(ret < 0)) { while (++i < func_num) @@ -419,7 +419,7 @@ static int gfs_unbind(struct usb_composite_dev *cdev) gether_cleanup(the_dev); gfs_ether_setup = false; - for (i = func_num; --i; ) + for (i = func_num; i--; ) if (ffs_tab[i].ffs_data) functionfs_unbind(ffs_tab[i].ffs_data); diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c index ce450a18aa19..f1e50a3e322d 100644 --- a/drivers/usb/gadget/net2272.c +++ b/drivers/usb/gadget/net2272.c @@ -58,7 +58,7 @@ static const char * const ep_name[] = { "ep-a", "ep-b", "ep-c", }; -#ifdef CONFIG_USB_GADGET_NET2272_DMA +#ifdef CONFIG_USB_NET2272_DMA /* * use_dma: the NET2272 can use an external DMA controller. * Note that since there is no generic DMA api, some functions, @@ -1492,6 +1492,13 @@ stop_activity(struct net2272 *dev, struct usb_gadget_driver *driver) for (i = 0; i < 4; ++i) net2272_dequeue_all(&dev->ep[i]); + /* report disconnect; the driver is already quiesced */ + if (driver) { + spin_unlock(&dev->lock); + driver->disconnect(&dev->gadget); + spin_lock(&dev->lock); + } + net2272_usb_reinit(dev); } diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index e869188bc2b1..fbd006ab31d3 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -1920,7 +1920,6 @@ static int net2280_start(struct usb_gadget *_gadget, err_func: device_remove_file (&dev->pdev->dev, &dev_attr_function); err_unbind: - driver->unbind (&dev->gadget); dev->driver = NULL; return retval; } @@ -1941,6 +1940,13 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver) for (i = 0; i < 7; i++) nuke (&dev->ep [i]); + /* report disconnect; the driver is already quiesced */ + if (driver) { + spin_unlock(&dev->lock); + driver->disconnect(&dev->gadget); + spin_lock(&dev->lock); + } + usb_reinit (dev); } diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index c5034d9c946b..b369292d4b90 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -136,7 +136,7 @@ static struct portmaster { pr_debug(fmt, ##arg) #endif /* pr_vdebug */ #else -#ifndef pr_vdebig +#ifndef pr_vdebug #define pr_vdebug(fmt, arg...) \ ({ if (0) pr_debug(fmt, ##arg); }) #endif /* pr_vdebug */ diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index c6c2b5611b43..ffd8fa541101 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -271,7 +271,7 @@ static void usb_gadget_remove_driver(struct usb_udc *udc) usb_gadget_disconnect(udc->gadget); udc->driver->disconnect(udc->gadget); udc->driver->unbind(udc->gadget); - usb_gadget_udc_stop(udc->gadget, udc->driver); + usb_gadget_udc_stop(udc->gadget, NULL); udc->driver = NULL; udc->dev.driver = NULL; diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 1b58587b7be9..f7af0984743b 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -155,8 +155,9 @@ config USB_EHCI_MXC Variation of ARC USB block used in some Freescale chips. config USB_EHCI_HCD_OMAP - bool "EHCI support for OMAP3 and later chips" + tristate "EHCI support for OMAP3 and later chips" depends on USB_EHCI_HCD && ARCH_OMAP + select NOP_USB_XCEIV default y ---help--- Enables support for the on-chip EHCI controller on diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 001fbff2fdef..56de4106c8b3 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o obj-$(CONFIG_USB_EHCI_HCD_PLATFORM) += ehci-platform.o obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o +obj-$(CONFIG_USB_EHCI_HCD_OMAP) += ehci-omap.o obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 70b496dc18a0..5429d2645bbc 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -510,14 +510,16 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) spin_lock_irqsave (&ehci->lock, flags); for (qh = ehci->async->qh_next.qh; size > 0 && qh; qh = qh->qh_next.qh) qh_lines (ehci, qh, &next, &size); - if (ehci->async_unlink && size > 0) { + if (!list_empty(&ehci->async_unlink) && size > 0) { temp = scnprintf(next, size, "\nunlink =\n"); size -= temp; next += temp; - for (qh = ehci->async_unlink; size > 0 && qh; - qh = qh->unlink_next) - qh_lines (ehci, qh, &next, &size); + list_for_each_entry(qh, &ehci->async_unlink, unlink_node) { + if (size <= 0) + break; + qh_lines(ehci, qh, &next, &size); + } } spin_unlock_irqrestore (&ehci->lock, flags); @@ -814,9 +816,10 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) } } - if (ehci->async_unlink) { + if (!list_empty(&ehci->async_unlink)) { temp = scnprintf(next, size, "async unlink qh %p\n", - ehci->async_unlink); + list_first_entry(&ehci->async_unlink, + struct ehci_qh, unlink_node)); size -= temp; next += temp; } diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index d81d2fcbff18..3be3df233a0e 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -370,6 +370,15 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) /* EHCI registers start at offset 0x100 */ ehci->caps = hcd->regs + 0x100; +#ifdef CONFIG_PPC_83xx + /* + * Deal with MPC834X that need port power to be cycled after the power + * fault condition is removed. Otherwise the state machine does not + * reflect PORTSC[CSC] correctly. + */ + ehci->need_oc_pp_cycle = 1; +#endif + hcd->has_tt = 1; retval = ehci_setup(hcd); diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 5726cb144abf..b12b97d2ccaf 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -302,6 +302,7 @@ static void ehci_quiesce (struct ehci_hcd *ehci) static void end_unlink_async(struct ehci_hcd *ehci); static void unlink_empty_async(struct ehci_hcd *ehci); +static void unlink_empty_async_suspended(struct ehci_hcd *ehci); static void ehci_work(struct ehci_hcd *ehci); static void start_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh); static void end_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh); @@ -481,6 +482,9 @@ static int ehci_init(struct usb_hcd *hcd) * periodic_size can shrink by USBCMD update if hcc_params allows. */ ehci->periodic_size = DEFAULT_I_TDPS; + INIT_LIST_HEAD(&ehci->async_unlink); + INIT_LIST_HEAD(&ehci->async_idle); + INIT_LIST_HEAD(&ehci->intr_unlink); INIT_LIST_HEAD(&ehci->intr_qh_list); INIT_LIST_HEAD(&ehci->cached_itd_list); INIT_LIST_HEAD(&ehci->cached_sitd_list); @@ -748,7 +752,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* guard against (alleged) silicon errata */ if (cmd & CMD_IAAD) ehci_dbg(ehci, "IAA with IAAD still set?\n"); - if (ehci->async_iaa) + if (ehci->iaa_in_progress) COUNT(ehci->stats.iaa); end_unlink_async(ehci); } @@ -756,7 +760,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* remote wakeup [4.3.1] */ if (status & STS_PCD) { unsigned i = HCS_N_PORTS (ehci->hcs_params); - u32 ppcd = 0; + u32 ppcd = ~0; /* kick root hub later */ pcd_status = status; @@ -773,7 +777,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) int pstatus; /* leverage per-port change bits feature */ - if (ehci->has_ppcd && !(ppcd & (1 << i))) + if (!(ppcd & (1 << i))) continue; pstatus = ehci_readl(ehci, &ehci->regs->port_status[i]); @@ -895,17 +899,24 @@ static int ehci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) if (rc) goto done; - switch (usb_pipetype (urb->pipe)) { - // case PIPE_CONTROL: - // case PIPE_BULK: - default: + if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + /* + * We don't expedite dequeue for isochronous URBs. + * Just wait until they complete normally or their + * time slot expires. + */ + } else { qh = (struct ehci_qh *) urb->hcpriv; - if (!qh) - break; + qh->exception = 1; switch (qh->qh_state) { case QH_STATE_LINKED: + if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) + start_unlink_intr(ehci, qh); + else + start_unlink_async(ehci, qh); + break; case QH_STATE_COMPLETING: - start_unlink_async(ehci, qh); + qh->dequeue_during_giveback = 1; break; case QH_STATE_UNLINK: case QH_STATE_UNLINK_WAIT: @@ -916,33 +927,6 @@ static int ehci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) qh_completions(ehci, qh); break; } - break; - - case PIPE_INTERRUPT: - qh = (struct ehci_qh *) urb->hcpriv; - if (!qh) - break; - switch (qh->qh_state) { - case QH_STATE_LINKED: - case QH_STATE_COMPLETING: - start_unlink_intr(ehci, qh); - break; - case QH_STATE_IDLE: - qh_completions (ehci, qh); - break; - default: - ehci_dbg (ehci, "bogus qh %p state %d\n", - qh, qh->qh_state); - goto done; - } - break; - - case PIPE_ISOCHRONOUS: - // itd or sitd ... - - // wait till next completion, do it then. - // completion irqs can wait up to 1024 msec, - break; } done: spin_unlock_irqrestore (&ehci->lock, flags); @@ -983,6 +967,7 @@ rescan: goto done; } + qh->exception = 1; if (ehci->rh_state < EHCI_RH_RUNNING) qh->qh_state = QH_STATE_IDLE; switch (qh->qh_state) { @@ -1051,13 +1036,12 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep) usb_settoggle(qh->dev, epnum, is_out, 0); if (!list_empty(&qh->qtd_list)) { WARN_ONCE(1, "clear_halt for a busy endpoint\n"); - } else if (qh->qh_state == QH_STATE_LINKED || - qh->qh_state == QH_STATE_COMPLETING) { - + } else { /* The toggle value in the QH can't be updated * while the QH is active. Unlink it now; * re-linking will call qh_refresh(). */ + qh->exception = 1; if (eptype == USB_ENDPOINT_XFER_BULK) start_unlink_async(ehci, qh); else @@ -1250,11 +1234,6 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ehci_hcd_sh_driver #endif -#ifdef CONFIG_USB_EHCI_HCD_OMAP -#include "ehci-omap.c" -#define PLATFORM_DRIVER ehci_hcd_omap_driver -#endif - #ifdef CONFIG_PPC_PS3 #include "ehci-ps3.c" #define PS3_SYSTEM_BUS_DRIVER ps3_ehci_driver @@ -1290,11 +1269,6 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ehci_octeon_driver #endif -#ifdef CONFIG_ARCH_VT8500 -#include "ehci-vt8500.c" -#define PLATFORM_DRIVER vt8500_ehci_driver -#endif - #ifdef CONFIG_PLAT_SPEAR #include "ehci-spear.c" #define PLATFORM_DRIVER spear_ehci_hcd_driver @@ -1344,6 +1318,7 @@ MODULE_LICENSE ("GPL"); !IS_ENABLED(CONFIG_USB_EHCI_HCD_PLATFORM) && \ !IS_ENABLED(CONFIG_USB_CHIPIDEA_HOST) && \ !IS_ENABLED(CONFIG_USB_EHCI_MXC) && \ + !IS_ENABLED(CONFIG_USB_EHCI_HCD_OMAP) && \ !defined(PLATFORM_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && \ !defined(OF_PLATFORM_DRIVER) && \ diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 4d3b294f203e..9ab4a4d9768a 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -328,7 +328,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) ehci->rh_state = EHCI_RH_SUSPENDED; end_unlink_async(ehci); - unlink_empty_async(ehci); + unlink_empty_async_suspended(ehci); ehci_handle_intr_unlinks(ehci); end_free_itds(ehci); @@ -464,7 +464,7 @@ static int ehci_bus_resume (struct usb_hcd *hcd) while (i--) { temp = ehci_readl(ehci, &ehci->regs->port_status [i]); if (test_bit(i, &resume_needed)) { - temp &= ~(PORT_RWC_BITS | PORT_RESUME); + temp &= ~(PORT_RWC_BITS | PORT_SUSPEND | PORT_RESUME); ehci_writel(ehci, temp, &ehci->regs->port_status [i]); ehci_vdbg (ehci, "resumed port %d\n", i + 1); } @@ -590,7 +590,7 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) u32 mask; int ports, i, retval = 1; unsigned long flags; - u32 ppcd = 0; + u32 ppcd = ~0; /* init status to no-changes */ buf [0] = 0; @@ -628,9 +628,10 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) for (i = 0; i < ports; i++) { /* leverage per-port change bits feature */ - if (ehci->has_ppcd && !(ppcd & (1 << i))) - continue; - temp = ehci_readl(ehci, &ehci->regs->port_status [i]); + if (ppcd & (1 << i)) + temp = ehci_readl(ehci, &ehci->regs->port_status[i]); + else + temp = 0; /* * Return status information even for ports with OWNER set. @@ -839,7 +840,8 @@ static int ehci_hub_control ( * power switching; they're allowed to just limit the * current. khubd will turn the power back on. */ - if ((temp & PORT_OC) && HCS_PPC(ehci->hcs_params)) { + if (((temp & PORT_OC) || (ehci->need_oc_pp_cycle)) + && HCS_PPC(ehci->hcs_params)) { ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_POWER), status_reg); @@ -870,10 +872,9 @@ static int ehci_hub_control ( usb_hcd_end_port_resume(&hcd->self, wIndex); /* stop resume signaling */ - temp = ehci_readl(ehci, status_reg); - ehci_writel(ehci, - temp & ~(PORT_RWC_BITS | PORT_RESUME), - status_reg); + temp &= ~(PORT_RWC_BITS | + PORT_SUSPEND | PORT_RESUME); + ehci_writel(ehci, temp, status_reg); clear_bit(wIndex, &ehci->resuming_ports); retval = handshake(ehci, status_reg, PORT_RESUME, 0, 2000 /* 2msec */); @@ -883,7 +884,7 @@ static int ehci_hub_control ( wIndex + 1, retval); goto error; } - temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10)); + temp = ehci_readl(ehci, status_reg); } } diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 6bad41af1c4e..402062973f03 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -210,7 +210,7 @@ static int mv_ehci_probe(struct platform_device *pdev) (void __iomem *) ((unsigned long) ehci_mv->cap_regs + offset); hcd->rsrc_start = r->start; - hcd->rsrc_len = r->end - r->start + 1; + hcd->rsrc_len = resource_size(r); hcd->regs = ehci_mv->op_regs; hcd->irq = platform_get_irq(pdev, 0); diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index e9301fb97eaa..a38c8c8e5b0d 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -28,11 +28,7 @@ #include <linux/slab.h> #include <linux/usb.h> #include <linux/usb/hcd.h> - #include <linux/platform_data/usb-ehci-mxc.h> - -#include <asm/mach-types.h> - #include "ehci.h" #define DRIVER_DESC "Freescale On-Chip EHCI Host driver" @@ -61,8 +57,6 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct ehci_hcd *ehci; - dev_info(&pdev->dev, "initializing i.MX USB Controller\n"); - if (!pdata) { dev_err(dev, "No platform data given, bailing out.\n"); return -EINVAL; @@ -178,7 +172,7 @@ err_alloc: return ret; } -static int __exit ehci_mxc_drv_remove(struct platform_device *pdev) +static int ehci_mxc_drv_remove(struct platform_device *pdev) { struct mxc_usbh_platform_data *pdata = pdev->dev.platform_data; struct usb_hcd *hcd = platform_get_drvdata(pdev); diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 0555ee42d7cb..5de3e43ded50 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -4,10 +4,11 @@ * Bus Glue for the EHCI controllers in OMAP3/4 * Tested on several OMAP3 boards, and OMAP4 Pandaboard * - * Copyright (C) 2007-2011 Texas Instruments, Inc. + * Copyright (C) 2007-2013 Texas Instruments, Inc. * Author: Vikram Pandita <vikram.pandita@ti.com> * Author: Anand Gadiyar <gadiyar@ti.com> * Author: Keshava Munegowda <keshava_mgowda@ti.com> + * Author: Roger Quadros <rogerq@ti.com> * * Copyright (C) 2009 Nokia Corporation * Contact: Felipe Balbi <felipe.balbi@nokia.com> @@ -28,21 +29,23 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * - * TODO (last updated Feb 27, 2010): - * - add kernel-doc - * - enable AUTOIDLE - * - add suspend/resume - * - add HSIC and TLL support - * - convert to use hwmod and runtime PM */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/io.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/usb/ulpi.h> -#include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> #include <linux/gpio.h> #include <linux/clk.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/of.h> +#include <linux/dma-mapping.h> + +#include "ehci.h" #include <linux/platform_data/usb-omap.h> @@ -57,10 +60,16 @@ #define EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT 8 #define EHCI_INSNREG05_ULPI_WRDATA_SHIFT 0 -/*-------------------------------------------------------------------------*/ +#define DRIVER_DESC "OMAP-EHCI Host Controller driver" + +static const char hcd_name[] = "ehci-omap"; -static const struct hc_driver ehci_omap_hc_driver; +/*-------------------------------------------------------------------------*/ +struct omap_hcd { + struct usb_phy *phy[OMAP3_HS_USB_PORTS]; /* one PHY for each port */ + int nports; +}; static inline void ehci_write(void __iomem *base, u32 reg, u32 val) { @@ -72,99 +81,16 @@ static inline u32 ehci_read(void __iomem *base, u32 reg) return __raw_readl(base + reg); } +/* configure so an HC device and id are always provided */ +/* always called with process context; sleeping is OK */ -static void omap_ehci_soft_phy_reset(struct usb_hcd *hcd, u8 port) -{ - unsigned long timeout = jiffies + msecs_to_jiffies(1000); - unsigned reg = 0; - - reg = ULPI_FUNC_CTRL_RESET - /* FUNCTION_CTRL_SET register */ - | (ULPI_SET(ULPI_FUNC_CTRL) << EHCI_INSNREG05_ULPI_REGADD_SHIFT) - /* Write */ - | (2 << EHCI_INSNREG05_ULPI_OPSEL_SHIFT) - /* PORTn */ - | ((port + 1) << EHCI_INSNREG05_ULPI_PORTSEL_SHIFT) - /* start ULPI access*/ - | (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT); - - ehci_write(hcd->regs, EHCI_INSNREG05_ULPI, reg); - - /* Wait for ULPI access completion */ - while ((ehci_read(hcd->regs, EHCI_INSNREG05_ULPI) - & (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT))) { - cpu_relax(); - - if (time_after(jiffies, timeout)) { - dev_dbg(hcd->self.controller, - "phy reset operation timed out\n"); - break; - } - } -} - -static int omap_ehci_init(struct usb_hcd *hcd) -{ - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - int rc; - struct usbhs_omap_platform_data *pdata; - - pdata = hcd->self.controller->platform_data; - - /* Hold PHYs in reset while initializing EHCI controller */ - if (pdata->phy_reset) { - if (gpio_is_valid(pdata->reset_gpio_port[0])) - gpio_set_value_cansleep(pdata->reset_gpio_port[0], 0); - - if (gpio_is_valid(pdata->reset_gpio_port[1])) - gpio_set_value_cansleep(pdata->reset_gpio_port[1], 0); - - /* Hold the PHY in RESET for enough time till DIR is high */ - udelay(10); - } - - /* Soft reset the PHY using PHY reset command over ULPI */ - if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY) - omap_ehci_soft_phy_reset(hcd, 0); - if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY) - omap_ehci_soft_phy_reset(hcd, 1); - - /* we know this is the memory we want, no need to ioremap again */ - ehci->caps = hcd->regs; - - rc = ehci_setup(hcd); - - if (pdata->phy_reset) { - /* Hold the PHY in RESET for enough time till - * PHY is settled and ready - */ - udelay(10); - - if (gpio_is_valid(pdata->reset_gpio_port[0])) - gpio_set_value_cansleep(pdata->reset_gpio_port[0], 1); - - if (gpio_is_valid(pdata->reset_gpio_port[1])) - gpio_set_value_cansleep(pdata->reset_gpio_port[1], 1); - } - - return rc; -} +static struct hc_driver __read_mostly ehci_omap_hc_driver; -static void disable_put_regulator( - struct usbhs_omap_platform_data *pdata) -{ - int i; - - for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) { - if (pdata->regulator[i]) { - regulator_disable(pdata->regulator[i]); - regulator_put(pdata->regulator[i]); - } - } -} +static const struct ehci_driver_overrides ehci_omap_overrides __initdata = { + .extra_priv_size = sizeof(struct omap_hcd), +}; -/* configure so an HC device and id are always provided */ -/* always called with process context; sleeping is OK */ +static u64 omap_ehci_dma_mask = DMA_BIT_MASK(32); /** * ehci_hcd_omap_probe - initialize TI-based HCDs @@ -175,15 +101,15 @@ static void disable_put_regulator( */ static int ehci_hcd_omap_probe(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct usbhs_omap_platform_data *pdata = dev->platform_data; - struct resource *res; - struct usb_hcd *hcd; - void __iomem *regs; - int ret = -ENODEV; - int irq; - int i; - char supply[7]; + struct device *dev = &pdev->dev; + struct usbhs_omap_platform_data *pdata = dev->platform_data; + struct resource *res; + struct usb_hcd *hcd; + void __iomem *regs; + int ret = -ENODEV; + int irq; + int i; + struct omap_hcd *omap; if (usb_disabled()) return -ENODEV; @@ -193,52 +119,74 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) return -ENODEV; } - irq = platform_get_irq_byname(pdev, "ehci-irq"); - if (irq < 0) { - dev_err(dev, "EHCI irq failed\n"); - return -ENODEV; + /* For DT boot, get platform data from parent. i.e. usbhshost */ + if (dev->of_node) { + pdata = dev->parent->platform_data; + dev->platform_data = pdata; } - res = platform_get_resource_byname(pdev, - IORESOURCE_MEM, "ehci"); - if (!res) { - dev_err(dev, "UHH EHCI get resource failed\n"); + if (!pdata) { + dev_err(dev, "Missing platform data\n"); return -ENODEV; } - regs = ioremap(res->start, resource_size(res)); - if (!regs) { - dev_err(dev, "UHH EHCI ioremap failed\n"); - return -ENOMEM; + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(dev, "EHCI irq failed\n"); + return -ENODEV; } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + /* + * Right now device-tree probed devices don't get dma_mask set. + * Since shared usb code relies on it, set it here for now. + * Once we have dma capability bindings this can go away. + */ + if (!pdev->dev.dma_mask) + pdev->dev.dma_mask = &omap_ehci_dma_mask; + hcd = usb_create_hcd(&ehci_omap_hc_driver, dev, dev_name(dev)); if (!hcd) { - dev_err(dev, "failed to create hcd with err %d\n", ret); - ret = -ENOMEM; - goto err_io; + dev_err(dev, "Failed to create HCD\n"); + return -ENOMEM; } hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); hcd->regs = regs; - - /* get ehci regulator and enable */ - for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) { - if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) { - pdata->regulator[i] = NULL; - continue; - } - snprintf(supply, sizeof(supply), "hsusb%d", i); - pdata->regulator[i] = regulator_get(dev, supply); - if (IS_ERR(pdata->regulator[i])) { - pdata->regulator[i] = NULL; - dev_dbg(dev, - "failed to get ehci port%d regulator\n", i); - } else { - regulator_enable(pdata->regulator[i]); + hcd_to_ehci(hcd)->caps = regs; + + omap = (struct omap_hcd *)hcd_to_ehci(hcd)->priv; + omap->nports = pdata->nports; + + platform_set_drvdata(pdev, hcd); + + /* get the PHY devices if needed */ + for (i = 0 ; i < omap->nports ; i++) { + struct usb_phy *phy; + + /* get the PHY device */ + if (dev->of_node) + phy = devm_usb_get_phy_by_phandle(dev, "phys", i); + else + phy = devm_usb_get_phy_dev(dev, i); + if (IS_ERR(phy) || !phy) { + /* Don't bail out if PHY is not absolutely necessary */ + if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) + continue; + + ret = IS_ERR(phy) ? PTR_ERR(phy) : -ENODEV; + dev_err(dev, "Can't get PHY device for port %d: %d\n", + i, ret); + goto err_phy; } + + omap->phy[i] = phy; } pm_runtime_enable(dev); @@ -262,16 +210,34 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) goto err_pm_runtime; } + /* + * Bring PHYs out of reset. + * Even though HSIC mode is a PHY-less mode, the reset + * line exists between the chips and can be modelled + * as a PHY device for reset control. + */ + for (i = 0; i < omap->nports; i++) { + if (!omap->phy[i]) + continue; + + usb_phy_init(omap->phy[i]); + /* bring PHY out of suspend */ + usb_phy_set_suspend(omap->phy[i], 0); + } return 0; err_pm_runtime: - disable_put_regulator(pdata); pm_runtime_put_sync(dev); + +err_phy: + for (i = 0; i < omap->nports; i++) { + if (omap->phy[i]) + usb_phy_shutdown(omap->phy[i]); + } + usb_put_hcd(hcd); -err_io: - iounmap(regs); return ret; } @@ -286,14 +252,19 @@ err_io: */ static int ehci_hcd_omap_remove(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct usb_hcd *hcd = dev_get_drvdata(dev); + struct device *dev = &pdev->dev; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct omap_hcd *omap = (struct omap_hcd *)hcd_to_ehci(hcd)->priv; + int i; usb_remove_hcd(hcd); - disable_put_regulator(dev->platform_data); - iounmap(hcd->regs); - usb_put_hcd(hcd); + for (i = 0; i < omap->nports; i++) { + if (omap->phy[i]) + usb_phy_shutdown(omap->phy[i]); + } + + usb_put_hcd(hcd); pm_runtime_put_sync(dev); pm_runtime_disable(dev); @@ -308,6 +279,13 @@ static void ehci_hcd_omap_shutdown(struct platform_device *pdev) hcd->driver->shutdown(hcd); } +static const struct of_device_id omap_ehci_dt_ids[] = { + { .compatible = "ti,ehci-omap" }, + { } +}; + +MODULE_DEVICE_TABLE(of, omap_ehci_dt_ids); + static struct platform_driver ehci_hcd_omap_driver = { .probe = ehci_hcd_omap_probe, .remove = ehci_hcd_omap_remove, @@ -315,56 +293,35 @@ static struct platform_driver ehci_hcd_omap_driver = { /*.suspend = ehci_hcd_omap_suspend, */ /*.resume = ehci_hcd_omap_resume, */ .driver = { - .name = "ehci-omap", + .name = hcd_name, + .of_match_table = of_match_ptr(omap_ehci_dt_ids), } }; /*-------------------------------------------------------------------------*/ -static const struct hc_driver ehci_omap_hc_driver = { - .description = hcd_name, - .product_desc = "OMAP-EHCI Host Controller", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - /* - * basic lifecycle operations - */ - .reset = omap_ehci_init, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, +static int __init ehci_omap_init(void) +{ + if (usb_disabled()) + return -ENODEV; - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, + pr_info("%s: " DRIVER_DESC "\n", hcd_name); - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, + ehci_init_driver(&ehci_omap_hc_driver, &ehci_omap_overrides); + return platform_driver_register(&ehci_hcd_omap_driver); +} +module_init(ehci_omap_init); - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; +static void __exit ehci_omap_cleanup(void) +{ + platform_driver_unregister(&ehci_hcd_omap_driver); +} +module_exit(ehci_omap_cleanup); MODULE_ALIAS("platform:ehci-omap"); MODULE_AUTHOR("Texas Instruments, Inc."); MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>"); +MODULE_AUTHOR("Roger Quadros <rogerq@ti.com>"); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 914a3ecfb5d3..38c45fb3357e 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -305,7 +305,7 @@ err1: return err; } -static int __exit ehci_orion_drv_remove(struct platform_device *pdev) +static int ehci_orion_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); struct clk *clk; @@ -333,7 +333,7 @@ MODULE_DEVICE_TABLE(of, ehci_orion_dt_ids); static struct platform_driver ehci_orion_driver = { .probe = ehci_orion_drv_probe, - .remove = __exit_p(ehci_orion_drv_remove), + .remove = ehci_orion_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "orion-ehci", diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 170b9399e09f..a573d5ff9adc 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -292,17 +292,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd) } } -#ifdef CONFIG_USB_SUSPEND - /* REVISIT: the controller works fine for wakeup iff the root hub - * itself is "globally" suspended, but usbcore currently doesn't - * understand such things. - * - * System suspend currently expects to be able to suspend the entire - * device tree, device-at-a-time. If we failed selective suspend - * reports, system suspend would fail; so the root hub code must claim - * success. That's lying to usbcore, and it matters for runtime - * PM scenarios with selective suspend and remote wakeup... - */ +#ifdef CONFIG_PM_RUNTIME if (ehci->no_selective_suspend && device_can_wakeup(&pdev->dev)) ehci_warn(ehci, "selective suspend/wakeup unavailable\n"); #endif diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index ca7506390542..cda0fa9613e7 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -18,11 +18,13 @@ * * Licensed under the GNU/GPL. See COPYING for details. */ +#include <linux/dma-mapping.h> #include <linux/err.h> #include <linux/kernel.h> #include <linux/hrtimer.h> #include <linux/io.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/usb.h> #include <linux/usb/hcd.h> @@ -62,22 +64,32 @@ static const struct ehci_driver_overrides platform_overrides __initdata = { .reset = ehci_platform_reset, }; +static struct usb_ehci_pdata ehci_platform_defaults; + static int ehci_platform_probe(struct platform_device *dev) { struct usb_hcd *hcd; struct resource *res_mem; - struct usb_ehci_pdata *pdata = dev->dev.platform_data; + struct usb_ehci_pdata *pdata; int irq; int err = -ENOMEM; - if (!pdata) { - WARN_ON(1); - return -ENODEV; - } - if (usb_disabled()) return -ENODEV; + /* + * use reasonable defaults so platforms don't have to provide these. + * with DT probing on ARM, none of these are set. + */ + if (!dev->dev.platform_data) + dev->dev.platform_data = &ehci_platform_defaults; + if (!dev->dev.dma_mask) + dev->dev.dma_mask = &dev->dev.coherent_dma_mask; + if (!dev->dev.coherent_dma_mask) + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + + pdata = dev->dev.platform_data; + irq = platform_get_irq(dev, 0); if (irq < 0) { dev_err(&dev->dev, "no irq provided"); @@ -139,6 +151,9 @@ static int ehci_platform_remove(struct platform_device *dev) if (pdata->power_off) pdata->power_off(dev); + if (pdata == &ehci_platform_defaults) + dev->dev.platform_data = NULL; + return 0; } @@ -183,6 +198,12 @@ static int ehci_platform_resume(struct device *dev) #define ehci_platform_resume NULL #endif /* CONFIG_PM */ +static const struct of_device_id vt8500_ehci_ids[] = { + { .compatible = "via,vt8500-ehci", }, + { .compatible = "wm,prizm-ehci", }, + {} +}; + static const struct platform_device_id ehci_platform_table[] = { { "ehci-platform", 0 }, { } @@ -203,6 +224,7 @@ static struct platform_driver ehci_platform_driver = { .owner = THIS_MODULE, .name = "ehci-platform", .pm = &ehci_platform_pm_ops, + .of_match_table = of_match_ptr(vt8500_ehci_ids), } }; diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index df5925a4f0db..fd983771b025 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -221,7 +221,6 @@ static int ps3_ehci_remove(struct ps3_system_bus_device *dev) tmp = hcd->irq; - ehci_shutdown(hcd); usb_remove_hcd(hcd); ps3_system_bus_set_drvdata(dev, NULL); diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 5464665f0b6a..d34b399b78e2 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -90,7 +90,7 @@ qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd) struct ehci_qh_hw *hw = qh->hw; /* writes to an active overlay are unsafe */ - BUG_ON(qh->qh_state != QH_STATE_IDLE); + WARN_ON(qh->qh_state != QH_STATE_IDLE); hw->hw_qtd_next = QTD_NEXT(ehci, qtd->qtd_dma); hw->hw_alt_next = EHCI_LIST_END(ehci); @@ -123,26 +123,19 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh) { struct ehci_qtd *qtd; - if (list_empty (&qh->qtd_list)) - qtd = qh->dummy; - else { - qtd = list_entry (qh->qtd_list.next, - struct ehci_qtd, qtd_list); - /* - * first qtd may already be partially processed. - * If we come here during unlink, the QH overlay region - * might have reference to the just unlinked qtd. The - * qtd is updated in qh_completions(). Update the QH - * overlay here. - */ - if (qh->hw->hw_token & ACTIVE_BIT(ehci)) { - qh->hw->hw_qtd_next = qtd->hw_next; - qtd = NULL; - } - } + qtd = list_entry(qh->qtd_list.next, struct ehci_qtd, qtd_list); - if (qtd) - qh_update (ehci, qh, qtd); + /* + * first qtd may already be partially processed. + * If we come here during unlink, the QH overlay region + * might have reference to the just unlinked qtd. The + * qtd is updated in qh_completions(). Update the QH + * overlay here. + */ + if (qh->hw->hw_token & ACTIVE_BIT(ehci)) + qh->hw->hw_qtd_next = qtd->hw_next; + else + qh_update(ehci, qh, qtd); } /*-------------------------------------------------------------------------*/ @@ -299,8 +292,8 @@ static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh); /* * Process and free completed qtds for a qh, returning URBs to drivers. - * Chases up to qh->hw_current. Returns number of completions called, - * indicating how much "real" work we did. + * Chases up to qh->hw_current. Returns nonzero if the caller should + * unlink qh. */ static unsigned qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) @@ -309,13 +302,9 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) struct list_head *entry, *tmp; int last_status; int stopped; - unsigned count = 0; u8 state; struct ehci_qh_hw *hw = qh->hw; - if (unlikely (list_empty (&qh->qtd_list))) - return count; - /* completions (or tasks on other cpus) must never clobber HALT * till we've gone through and cleaned everything up, even when * they add urbs to this qh's queue or mark them for unlinking. @@ -333,7 +322,7 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) rescan: last = NULL; last_status = -EINPROGRESS; - qh->needs_rescan = 0; + qh->dequeue_during_giveback = 0; /* remove de-activated QTDs from front of queue. * after faults (including short reads), cleanup this urb @@ -352,7 +341,6 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) if (last) { if (likely (last->urb != urb)) { ehci_urb_done(ehci, last->urb, last_status); - count++; last_status = -EINPROGRESS; } ehci_qtd_free (ehci, last); @@ -526,23 +514,16 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) /* last urb's completion might still need calling */ if (likely (last != NULL)) { ehci_urb_done(ehci, last->urb, last_status); - count++; ehci_qtd_free (ehci, last); } /* Do we need to rescan for URBs dequeued during a giveback? */ - if (unlikely(qh->needs_rescan)) { + if (unlikely(qh->dequeue_during_giveback)) { /* If the QH is already unlinked, do the rescan now. */ if (state == QH_STATE_IDLE) goto rescan; - /* Otherwise we have to wait until the QH is fully unlinked. - * Our caller will start an unlink if qh->needs_rescan is - * set. But if an unlink has already started, nothing needs - * to be done. - */ - if (state != QH_STATE_LINKED) - qh->needs_rescan = 0; + /* Otherwise the caller must unlink the QH. */ } /* restore original state; caller must unlink or relink */ @@ -551,33 +532,23 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) /* be sure the hardware's done with the qh before refreshing * it after fault cleanup, or recovering from silicon wrongly * overlaying the dummy qtd (which reduces DMA chatter). + * + * We won't refresh a QH that's linked (after the HC + * stopped the queue). That avoids a race: + * - HC reads first part of QH; + * - CPU updates that first part and the token; + * - HC reads rest of that QH, including token + * Result: HC gets an inconsistent image, and then + * DMAs to/from the wrong memory (corrupting it). + * + * That should be rare for interrupt transfers, + * except maybe high bandwidth ... */ - if (stopped != 0 || hw->hw_qtd_next == EHCI_LIST_END(ehci)) { - switch (state) { - case QH_STATE_IDLE: - qh_refresh(ehci, qh); - break; - case QH_STATE_LINKED: - /* We won't refresh a QH that's linked (after the HC - * stopped the queue). That avoids a race: - * - HC reads first part of QH; - * - CPU updates that first part and the token; - * - HC reads rest of that QH, including token - * Result: HC gets an inconsistent image, and then - * DMAs to/from the wrong memory (corrupting it). - * - * That should be rare for interrupt transfers, - * except maybe high bandwidth ... - */ - - /* Tell the caller to start an unlink */ - qh->needs_rescan = 1; - break; - /* otherwise, unlink already started */ - } - } + if (stopped != 0 || hw->hw_qtd_next == EHCI_LIST_END(ehci)) + qh->exception = 1; - return count; + /* Let the caller know if the QH needs to be unlinked. */ + return qh->exception; } /*-------------------------------------------------------------------------*/ @@ -957,14 +928,13 @@ done: /* NOTE: if (PIPE_INTERRUPT) { scheduler sets s-mask } */ - /* init as live, toggle clear, advance to dummy */ + /* init as live, toggle clear */ qh->qh_state = QH_STATE_IDLE; hw = qh->hw; hw->hw_info1 = cpu_to_hc32(ehci, info1); hw->hw_info2 = cpu_to_hc32(ehci, info2); qh->is_out = !is_input; usb_settoggle (urb->dev, usb_pipeendpoint (urb->pipe), !is_input, 1); - qh_refresh (ehci, qh); return qh; } @@ -988,8 +958,9 @@ static void disable_async(struct ehci_hcd *ehci) if (--ehci->async_count) return; - /* The async schedule and async_unlink list are supposed to be empty */ - WARN_ON(ehci->async->qh_next.qh || ehci->async_unlink); + /* The async schedule and unlink lists are supposed to be empty */ + WARN_ON(ehci->async->qh_next.qh || !list_empty(&ehci->async_unlink) || + !list_empty(&ehci->async_idle)); /* Don't turn off the schedule until ASS is 1 */ ehci_poll_ASS(ehci); @@ -1020,8 +991,9 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh) head->qh_next.qh = qh; head->hw->hw_next = dma; - qh->xacterrs = 0; qh->qh_state = QH_STATE_LINKED; + qh->xacterrs = 0; + qh->exception = 0; /* qtd completions reported later by interrupt */ enable_async(ehci); @@ -1179,11 +1151,7 @@ static void single_unlink_async(struct ehci_hcd *ehci, struct ehci_qh *qh) /* Add to the end of the list of QHs waiting for the next IAAD */ qh->qh_state = QH_STATE_UNLINK_WAIT; - if (ehci->async_unlink) - ehci->async_unlink_last->unlink_next = qh; - else - ehci->async_unlink = qh; - ehci->async_unlink_last = qh; + list_add_tail(&qh->unlink_node, &ehci->async_unlink); /* Unlink it from the schedule */ prev = ehci->async; @@ -1196,44 +1164,19 @@ static void single_unlink_async(struct ehci_hcd *ehci, struct ehci_qh *qh) ehci->qh_scan_next = qh->qh_next.qh; } -static void start_iaa_cycle(struct ehci_hcd *ehci, bool nested) +static void start_iaa_cycle(struct ehci_hcd *ehci) { - /* - * Do nothing if an IAA cycle is already running or - * if one will be started shortly. - */ - if (ehci->async_iaa || ehci->async_unlinking) + /* Do nothing if an IAA cycle is already running */ + if (ehci->iaa_in_progress) return; + ehci->iaa_in_progress = true; /* If the controller isn't running, we don't have to wait for it */ if (unlikely(ehci->rh_state < EHCI_RH_RUNNING)) { - - /* Do all the waiting QHs */ - ehci->async_iaa = ehci->async_unlink; - ehci->async_unlink = NULL; - - if (!nested) /* Avoid recursion */ - end_unlink_async(ehci); + end_unlink_async(ehci); /* Otherwise start a new IAA cycle */ } else if (likely(ehci->rh_state == EHCI_RH_RUNNING)) { - struct ehci_qh *qh; - - /* Do only the first waiting QH (nVidia bug?) */ - qh = ehci->async_unlink; - - /* - * Intel (?) bug: The HC can write back the overlay region - * even after the IAA interrupt occurs. In self-defense, - * always go through two IAA cycles for each QH. - */ - if (qh->qh_state == QH_STATE_UNLINK_WAIT) { - qh->qh_state = QH_STATE_UNLINK; - } else { - ehci->async_iaa = qh; - ehci->async_unlink = qh->unlink_next; - qh->unlink_next = NULL; - } /* Make sure the unlinks are all visible to the hardware */ wmb(); @@ -1250,36 +1193,73 @@ static void start_iaa_cycle(struct ehci_hcd *ehci, bool nested) static void end_unlink_async(struct ehci_hcd *ehci) { struct ehci_qh *qh; + bool early_exit; if (ehci->has_synopsys_hc_bug) ehci_writel(ehci, (u32) ehci->async->qh_dma, &ehci->regs->async_next); + /* The current IAA cycle has ended */ + ehci->iaa_in_progress = false; + + if (list_empty(&ehci->async_unlink)) + return; + qh = list_first_entry(&ehci->async_unlink, struct ehci_qh, + unlink_node); /* QH whose IAA cycle just ended */ + + /* + * If async_unlinking is set then this routine is already running, + * either on the stack or on another CPU. + */ + early_exit = ehci->async_unlinking; + + /* If the controller isn't running, process all the waiting QHs */ + if (ehci->rh_state < EHCI_RH_RUNNING) + list_splice_tail_init(&ehci->async_unlink, &ehci->async_idle); + + /* + * Intel (?) bug: The HC can write back the overlay region even + * after the IAA interrupt occurs. In self-defense, always go + * through two IAA cycles for each QH. + */ + else if (qh->qh_state == QH_STATE_UNLINK_WAIT) { + qh->qh_state = QH_STATE_UNLINK; + early_exit = true; + } + + /* Otherwise process only the first waiting QH (NVIDIA bug?) */ + else + list_move_tail(&qh->unlink_node, &ehci->async_idle); + + /* Start a new IAA cycle if any QHs are waiting for it */ + if (!list_empty(&ehci->async_unlink)) + start_iaa_cycle(ehci); + + /* + * Don't allow nesting or concurrent calls, + * or wait for the second IAA cycle for the next QH. + */ + if (early_exit) + return; + /* Process the idle QHs */ - restart: ehci->async_unlinking = true; - while (ehci->async_iaa) { - qh = ehci->async_iaa; - ehci->async_iaa = qh->unlink_next; - qh->unlink_next = NULL; + while (!list_empty(&ehci->async_idle)) { + qh = list_first_entry(&ehci->async_idle, struct ehci_qh, + unlink_node); + list_del(&qh->unlink_node); qh->qh_state = QH_STATE_IDLE; qh->qh_next.qh = NULL; - qh_completions(ehci, qh); + if (!list_empty(&qh->qtd_list)) + qh_completions(ehci, qh); if (!list_empty(&qh->qtd_list) && ehci->rh_state == EHCI_RH_RUNNING) qh_link_async(ehci, qh); disable_async(ehci); } ehci->async_unlinking = false; - - /* Start a new IAA cycle if any QHs are waiting for it */ - if (ehci->async_unlink) { - start_iaa_cycle(ehci, true); - if (unlikely(ehci->rh_state < EHCI_RH_RUNNING)) - goto restart; - } } static void start_unlink_async(struct ehci_hcd *ehci, struct ehci_qh *qh); @@ -1288,7 +1268,6 @@ static void unlink_empty_async(struct ehci_hcd *ehci) { struct ehci_qh *qh; struct ehci_qh *qh_to_unlink = NULL; - bool check_unlinks_later = false; int count = 0; /* Find the last async QH which has been empty for a timer cycle */ @@ -1296,15 +1275,13 @@ static void unlink_empty_async(struct ehci_hcd *ehci) if (list_empty(&qh->qtd_list) && qh->qh_state == QH_STATE_LINKED) { ++count; - if (qh->unlink_cycle == ehci->async_unlink_cycle) - check_unlinks_later = true; - else + if (qh->unlink_cycle != ehci->async_unlink_cycle) qh_to_unlink = qh; } } /* If nothing else is being unlinked, unlink the last empty QH */ - if (!ehci->async_iaa && !ehci->async_unlink && qh_to_unlink) { + if (list_empty(&ehci->async_unlink) && qh_to_unlink) { start_unlink_async(ehci, qh_to_unlink); --count; } @@ -1316,24 +1293,30 @@ static void unlink_empty_async(struct ehci_hcd *ehci) } } +/* The root hub is suspended; unlink all the async QHs */ +static void __maybe_unused unlink_empty_async_suspended(struct ehci_hcd *ehci) +{ + struct ehci_qh *qh; + + while (ehci->async->qh_next.qh) { + qh = ehci->async->qh_next.qh; + WARN_ON(!list_empty(&qh->qtd_list)); + single_unlink_async(ehci, qh); + } + start_iaa_cycle(ehci); +} + /* makes sure the async qh will become idle */ /* caller must own ehci->lock */ static void start_unlink_async(struct ehci_hcd *ehci, struct ehci_qh *qh) { - /* - * If the QH isn't linked then there's nothing we can do - * unless we were called during a giveback, in which case - * qh_completions() has to deal with it. - */ - if (qh->qh_state != QH_STATE_LINKED) { - if (qh->qh_state == QH_STATE_COMPLETING) - qh->needs_rescan = 1; + /* If the QH isn't linked then there's nothing we can do. */ + if (qh->qh_state != QH_STATE_LINKED) return; - } single_unlink_async(ehci, qh); - start_iaa_cycle(ehci, false); + start_iaa_cycle(ehci); } /*-------------------------------------------------------------------------*/ @@ -1347,7 +1330,7 @@ static void scan_async (struct ehci_hcd *ehci) while (ehci->qh_scan_next) { qh = ehci->qh_scan_next; ehci->qh_scan_next = qh->qh_next.qh; - rescan: + /* clean any finished work for this qh */ if (!list_empty(&qh->qtd_list)) { int temp; @@ -1360,14 +1343,13 @@ static void scan_async (struct ehci_hcd *ehci) * in single_unlink_async(). */ temp = qh_completions(ehci, qh); - if (qh->needs_rescan) { + if (unlikely(temp)) { start_unlink_async(ehci, qh); } else if (list_empty(&qh->qtd_list) && qh->qh_state == QH_STATE_LINKED) { qh->unlink_cycle = ehci->async_unlink_cycle; check_unlinks_later = true; - } else if (temp != 0) - goto rescan; + } } } diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 867a92390ef9..43a2a16732f5 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -92,20 +92,21 @@ static void s5p_ehci_phy_disable(struct s5p_ehci_hcd *s5p_ehci) static void s5p_setup_vbus_gpio(struct platform_device *pdev) { + struct device *dev = &pdev->dev; int err; int gpio; - if (!pdev->dev.of_node) + if (!dev->of_node) return; - gpio = of_get_named_gpio(pdev->dev.of_node, - "samsung,vbus-gpio", 0); + gpio = of_get_named_gpio(dev->of_node, "samsung,vbus-gpio", 0); if (!gpio_is_valid(gpio)) return; - err = gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "ehci_vbus_gpio"); + err = devm_gpio_request_one(dev, gpio, GPIOF_OUT_INIT_HIGH, + "ehci_vbus_gpio"); if (err) - dev_err(&pdev->dev, "can't request ehci vbus gpio %d", gpio); + dev_err(dev, "can't request ehci vbus gpio %d", gpio); } static u64 ehci_s5p_dma_mask = DMA_BIT_MASK(32); diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index b476daf49f6f..acff5b8f6e89 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -539,6 +539,7 @@ static void qh_link_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) } qh->qh_state = QH_STATE_LINKED; qh->xacterrs = 0; + qh->exception = 0; /* update per-qh bandwidth for usbfs */ ehci_to_hcd(ehci)->self.bandwidth_allocated += qh->period @@ -602,15 +603,9 @@ static void qh_unlink_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) static void start_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) { - /* If the QH isn't linked then there's nothing we can do - * unless we were called during a giveback, in which case - * qh_completions() has to deal with it. - */ - if (qh->qh_state != QH_STATE_LINKED) { - if (qh->qh_state == QH_STATE_COMPLETING) - qh->needs_rescan = 1; + /* If the QH isn't linked then there's nothing we can do. */ + if (qh->qh_state != QH_STATE_LINKED) return; - } qh_unlink_periodic (ehci, qh); @@ -625,17 +620,13 @@ static void start_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) qh->unlink_cycle = ehci->intr_unlink_cycle; /* New entries go at the end of the intr_unlink list */ - if (ehci->intr_unlink) - ehci->intr_unlink_last->unlink_next = qh; - else - ehci->intr_unlink = qh; - ehci->intr_unlink_last = qh; + list_add_tail(&qh->unlink_node, &ehci->intr_unlink); if (ehci->intr_unlinking) ; /* Avoid recursive calls */ else if (ehci->rh_state < EHCI_RH_RUNNING) ehci_handle_intr_unlinks(ehci); - else if (ehci->intr_unlink == qh) { + else if (ehci->intr_unlink.next == &qh->unlink_node) { ehci_enable_event(ehci, EHCI_HRTIMER_UNLINK_INTR, true); ++ehci->intr_unlink_cycle; } @@ -649,7 +640,8 @@ static void end_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) qh->qh_state = QH_STATE_IDLE; hw->hw_next = EHCI_LIST_END(ehci); - qh_completions(ehci, qh); + if (!list_empty(&qh->qtd_list)) + qh_completions(ehci, qh); /* reschedule QH iff another request is queued */ if (!list_empty(&qh->qtd_list) && ehci->rh_state == EHCI_RH_RUNNING) { @@ -792,7 +784,6 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh) unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */ struct ehci_qh_hw *hw = qh->hw; - qh_refresh(ehci, qh); hw->hw_next = EHCI_LIST_END(ehci); frame = qh->start; @@ -844,8 +835,6 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh) } else ehci_dbg (ehci, "reused qh %p schedule\n", qh); - /* stuff into the periodic schedule */ - qh_link_periodic(ehci, qh); done: return status; } @@ -891,6 +880,12 @@ static int intr_submit ( qh = qh_append_tds(ehci, urb, qtd_list, epnum, &urb->ep->hcpriv); BUG_ON (qh == NULL); + /* stuff into the periodic schedule */ + if (qh->qh_state == QH_STATE_IDLE) { + qh_refresh(ehci, qh); + qh_link_periodic(ehci, qh); + } + /* ... update usbfs periodic stats */ ehci_to_hcd(ehci)->self.bandwidth_int_reqs++; @@ -911,7 +906,7 @@ static void scan_intr(struct ehci_hcd *ehci) list_for_each_entry_safe(qh, ehci->qh_scan_next, &ehci->intr_qh_list, intr_node) { - rescan: + /* clean any finished work for this qh */ if (!list_empty(&qh->qtd_list)) { int temp; @@ -924,12 +919,9 @@ static void scan_intr(struct ehci_hcd *ehci) * in qh_unlink_periodic(). */ temp = qh_completions(ehci, qh); - if (unlikely(qh->needs_rescan || - (list_empty(&qh->qtd_list) && - qh->qh_state == QH_STATE_LINKED))) + if (unlikely(temp || (list_empty(&qh->qtd_list) && + qh->qh_state == QH_STATE_LINKED))) start_unlink_intr(ehci, qh); - else if (temp != 0) - goto rescan; } } } @@ -1214,6 +1206,7 @@ itd_urb_transaction ( memset (itd, 0, sizeof *itd); itd->itd_dma = itd_dma; + itd->frame = 9999; /* an invalid value */ list_add (&itd->itd_list, &sched->td_list); } spin_unlock_irqrestore (&ehci->lock, flags); @@ -1915,6 +1908,7 @@ sitd_urb_transaction ( memset (sitd, 0, sizeof *sitd); sitd->sitd_dma = sitd_dma; + sitd->frame = 9999; /* an invalid value */ list_add (&sitd->sitd_list, &iso_sched->td_list); } diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c index 3565a300f401..b44d716ddc82 100644 --- a/drivers/usb/host/ehci-sh.c +++ b/drivers/usb/host/ehci-sh.c @@ -77,7 +77,6 @@ static const struct hc_driver ehci_sh_hc_driver = { static int ehci_hcd_sh_probe(struct platform_device *pdev) { - const struct hc_driver *driver = &ehci_sh_hc_driver; struct resource *res; struct ehci_sh_priv *priv; struct ehci_sh_platdata *pdata; @@ -170,7 +169,7 @@ fail_create_hcd: return ret; } -static int __exit ehci_hcd_sh_remove(struct platform_device *pdev) +static int ehci_hcd_sh_remove(struct platform_device *pdev) { struct ehci_sh_priv *priv = platform_get_drvdata(pdev); struct usb_hcd *hcd = priv->hcd; @@ -196,7 +195,7 @@ static void ehci_hcd_sh_shutdown(struct platform_device *pdev) static struct platform_driver ehci_hcd_sh_driver = { .probe = ehci_hcd_sh_probe, - .remove = __exit_p(ehci_hcd_sh_remove), + .remove = ehci_hcd_sh_remove, .shutdown = ehci_hcd_sh_shutdown, .driver = { .name = "sh_ehci", diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c index 466c1bb5b967..210bb676f22f 100644 --- a/drivers/usb/host/ehci-spear.c +++ b/drivers/usb/host/ehci-spear.c @@ -78,7 +78,7 @@ static const struct hc_driver ehci_spear_hc_driver = { .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, }; -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int ehci_spear_drv_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); @@ -94,7 +94,7 @@ static int ehci_spear_drv_resume(struct device *dev) ehci_resume(hcd, false); return 0; } -#endif /* CONFIG_PM */ +#endif /* CONFIG_PM_SLEEP */ static SIMPLE_DEV_PM_OPS(ehci_spear_pm_ops, ehci_spear_drv_suspend, ehci_spear_drv_resume); diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 1d2488cc55f1..ed201ae879cb 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -28,6 +28,7 @@ #include <linux/pm_runtime.h> #include <linux/usb/ehci_def.h> #include <linux/usb/tegra_usb_phy.h> +#include <linux/clk/tegra.h> #define TEGRA_USB_BASE 0xC5000000 #define TEGRA_USB2_BASE 0xC5004000 @@ -691,6 +692,10 @@ static int tegra_ehci_probe(struct platform_device *pdev) if (err) goto fail_clk; + tegra_periph_reset_assert(tegra->clk); + udelay(1); + tegra_periph_reset_deassert(tegra->clk); + tegra->needs_double_reset = of_property_read_bool(pdev->dev.of_node, "nvidia,needs-double-reset"); @@ -755,7 +760,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) err = usb_phy_set_suspend(hcd->phy, 0); if (err) { dev_err(&pdev->dev, "Failed to power on the phy\n"); - goto fail; + goto fail_phy; } tegra->host_resumed = 1; @@ -765,7 +770,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) if (!irq) { dev_err(&pdev->dev, "Failed to get IRQ\n"); err = -ENODEV; - goto fail; + goto fail_phy; } if (pdata->operating_mode == TEGRA_USB_OTG) { @@ -773,6 +778,8 @@ static int tegra_ehci_probe(struct platform_device *pdev) devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, &hcd->self); + } else { + tegra->transceiver = ERR_PTR(-ENODEV); } err = usb_add_hcd(hcd, irq, IRQF_SHARED); @@ -794,6 +801,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) fail: if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, NULL); +fail_phy: usb_phy_shutdown(hcd->phy); fail_io: clk_disable_unprepare(tegra->clk); diff --git a/drivers/usb/host/ehci-timer.c b/drivers/usb/host/ehci-timer.c index 20dbdcbe9b0f..11e5b32f73e9 100644 --- a/drivers/usb/host/ehci-timer.c +++ b/drivers/usb/host/ehci-timer.c @@ -113,8 +113,8 @@ static void ehci_poll_ASS(struct ehci_hcd *ehci) if (want != actual) { - /* Poll again later, but give up after about 20 ms */ - if (ehci->ASS_poll_count++ < 20) { + /* Poll again later, but give up after about 2-4 ms */ + if (ehci->ASS_poll_count++ < 2) { ehci_enable_event(ehci, EHCI_HRTIMER_POLL_ASS, true); return; } @@ -159,8 +159,8 @@ static void ehci_poll_PSS(struct ehci_hcd *ehci) if (want != actual) { - /* Poll again later, but give up after about 20 ms */ - if (ehci->PSS_poll_count++ < 20) { + /* Poll again later, but give up after about 2-4 ms */ + if (ehci->PSS_poll_count++ < 2) { ehci_enable_event(ehci, EHCI_HRTIMER_POLL_PSS, true); return; } @@ -229,18 +229,19 @@ static void ehci_handle_intr_unlinks(struct ehci_hcd *ehci) * process all the QHs on the list. */ ehci->intr_unlinking = true; - while (ehci->intr_unlink) { - struct ehci_qh *qh = ehci->intr_unlink; + while (!list_empty(&ehci->intr_unlink)) { + struct ehci_qh *qh; + qh = list_first_entry(&ehci->intr_unlink, struct ehci_qh, + unlink_node); if (!stopped && qh->unlink_cycle == ehci->intr_unlink_cycle) break; - ehci->intr_unlink = qh->unlink_next; - qh->unlink_next = NULL; + list_del(&qh->unlink_node); end_unlink_intr(ehci, qh); } /* Handle remaining entries later */ - if (ehci->intr_unlink) { + if (!list_empty(&ehci->intr_unlink)) { ehci_enable_event(ehci, EHCI_HRTIMER_UNLINK_INTR, true); ++ehci->intr_unlink_cycle; } @@ -295,8 +296,7 @@ static void end_free_itds(struct ehci_hcd *ehci) /* Handle lost (or very late) IAA interrupts */ static void ehci_iaa_watchdog(struct ehci_hcd *ehci) { - if (ehci->rh_state != EHCI_RH_RUNNING) - return; + u32 cmd, status; /* * Lost IAA irqs wedge things badly; seen first with a vt8235. @@ -304,34 +304,32 @@ static void ehci_iaa_watchdog(struct ehci_hcd *ehci) * (a) SMP races against real IAA firing and retriggering, and * (b) clean HC shutdown, when IAA watchdog was pending. */ - if (ehci->async_iaa) { - u32 cmd, status; - - /* If we get here, IAA is *REALLY* late. It's barely - * conceivable that the system is so busy that CMD_IAAD - * is still legitimately set, so let's be sure it's - * clear before we read STS_IAA. (The HC should clear - * CMD_IAAD when it sets STS_IAA.) - */ - cmd = ehci_readl(ehci, &ehci->regs->command); - - /* - * If IAA is set here it either legitimately triggered - * after the watchdog timer expired (_way_ late, so we'll - * still count it as lost) ... or a silicon erratum: - * - VIA seems to set IAA without triggering the IRQ; - * - IAAD potentially cleared without setting IAA. - */ - status = ehci_readl(ehci, &ehci->regs->status); - if ((status & STS_IAA) || !(cmd & CMD_IAAD)) { - COUNT(ehci->stats.lost_iaa); - ehci_writel(ehci, STS_IAA, &ehci->regs->status); - } + if (!ehci->iaa_in_progress || ehci->rh_state != EHCI_RH_RUNNING) + return; + + /* If we get here, IAA is *REALLY* late. It's barely + * conceivable that the system is so busy that CMD_IAAD + * is still legitimately set, so let's be sure it's + * clear before we read STS_IAA. (The HC should clear + * CMD_IAAD when it sets STS_IAA.) + */ + cmd = ehci_readl(ehci, &ehci->regs->command); - ehci_vdbg(ehci, "IAA watchdog: status %x cmd %x\n", - status, cmd); - end_unlink_async(ehci); + /* + * If IAA is set here it either legitimately triggered + * after the watchdog timer expired (_way_ late, so we'll + * still count it as lost) ... or a silicon erratum: + * - VIA seems to set IAA without triggering the IRQ; + * - IAAD potentially cleared without setting IAA. + */ + status = ehci_readl(ehci, &ehci->regs->status); + if ((status & STS_IAA) || !(cmd & CMD_IAAD)) { + COUNT(ehci->stats.lost_iaa); + ehci_writel(ehci, STS_IAA, &ehci->regs->status); } + + ehci_dbg(ehci, "IAA watchdog: status %x cmd %x\n", status, cmd); + end_unlink_async(ehci); } diff --git a/drivers/usb/host/ehci-vt8500.c b/drivers/usb/host/ehci-vt8500.c deleted file mode 100644 index 7ecf709610ba..000000000000 --- a/drivers/usb/host/ehci-vt8500.c +++ /dev/null @@ -1,150 +0,0 @@ -/* - * drivers/usb/host/ehci-vt8500.c - * - * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com> - * - * Based on ehci-au1xxx.c - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/err.h> -#include <linux/of.h> -#include <linux/platform_device.h> - -static const struct hc_driver vt8500_ehci_hc_driver = { - .description = hcd_name, - .product_desc = "VT8500 EHCI", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - /* - * basic lifecycle operations - */ - .reset = ehci_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - -static u64 vt8500_ehci_dma_mask = DMA_BIT_MASK(32); - -static int vt8500_ehci_drv_probe(struct platform_device *pdev) -{ - struct usb_hcd *hcd; - struct ehci_hcd *ehci; - struct resource *res; - int ret; - - if (usb_disabled()) - return -ENODEV; - - /* - * Right now device-tree probed devices don't get dma_mask set. - * Since shared usb code relies on it, set it here for now. - * Once we have dma capability bindings this can go away. - */ - if (!pdev->dev.dma_mask) - pdev->dev.dma_mask = &vt8500_ehci_dma_mask; - - if (pdev->resource[1].flags != IORESOURCE_IRQ) { - pr_debug("resource[1] is not IORESOURCE_IRQ"); - return -ENOMEM; - } - hcd = usb_create_hcd(&vt8500_ehci_hc_driver, &pdev->dev, "VT8500"); - if (!hcd) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); - - hcd->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(hcd->regs)) { - ret = PTR_ERR(hcd->regs); - goto err1; - } - - ehci = hcd_to_ehci(hcd); - ehci->caps = hcd->regs; - - ret = usb_add_hcd(hcd, pdev->resource[1].start, - IRQF_SHARED); - if (ret == 0) { - platform_set_drvdata(pdev, hcd); - return ret; - } - -err1: - usb_put_hcd(hcd); - return ret; -} - -static int vt8500_ehci_drv_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - usb_remove_hcd(hcd); - usb_put_hcd(hcd); - platform_set_drvdata(pdev, NULL); - - return 0; -} - -static const struct of_device_id vt8500_ehci_ids[] = { - { .compatible = "via,vt8500-ehci", }, - { .compatible = "wm,prizm-ehci", }, - {} -}; - -static struct platform_driver vt8500_ehci_driver = { - .probe = vt8500_ehci_drv_probe, - .remove = vt8500_ehci_drv_remove, - .shutdown = usb_hcd_platform_shutdown, - .driver = { - .name = "vt8500-ehci", - .owner = THIS_MODULE, - .of_match_table = of_match_ptr(vt8500_ehci_ids), - } -}; - -MODULE_ALIAS("platform:vt8500-ehci"); -MODULE_DEVICE_TABLE(of, vt8500_ehci_ids); diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 36c3a8210595..7c978b23520d 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -121,6 +121,7 @@ struct ehci_hcd { /* one per controller */ bool scanning:1; bool need_rescan:1; bool intr_unlinking:1; + bool iaa_in_progress:1; bool async_unlinking:1; bool shutdown:1; struct ehci_qh *qh_scan_next; @@ -128,9 +129,8 @@ struct ehci_hcd { /* one per controller */ /* async schedule support */ struct ehci_qh *async; struct ehci_qh *dummy; /* For AMD quirk use */ - struct ehci_qh *async_unlink; - struct ehci_qh *async_unlink_last; - struct ehci_qh *async_iaa; + struct list_head async_unlink; + struct list_head async_idle; unsigned async_unlink_cycle; unsigned async_count; /* async activity count */ @@ -143,8 +143,7 @@ struct ehci_hcd { /* one per controller */ unsigned i_thresh; /* uframes HC might cache */ union ehci_shadow *pshadow; /* mirror hw periodic table */ - struct ehci_qh *intr_unlink; - struct ehci_qh *intr_unlink_last; + struct list_head intr_unlink; unsigned intr_unlink_cycle; unsigned now_frame; /* frame from HC hardware */ unsigned last_iso_frame; /* last frame scanned for iso */ @@ -200,6 +199,7 @@ struct ehci_hcd { /* one per controller */ unsigned use_dummy_qh:1; /* AMD Frame List table quirk*/ unsigned has_synopsys_hc_bug:1; /* Synopsys HC */ unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */ + unsigned need_oc_pp_cycle:1; /* MPC834X port power */ /* required for usb32 quirk */ #define OHCI_CTRL_HCFS (3 << 6) @@ -380,11 +380,10 @@ struct ehci_qh { struct list_head qtd_list; /* sw qtd list */ struct list_head intr_node; /* list of intr QHs */ struct ehci_qtd *dummy; - struct ehci_qh *unlink_next; /* next on unlink list */ + struct list_head unlink_node; unsigned unlink_cycle; - u8 needs_rescan; /* Dequeue during giveback */ u8 qh_state; #define QH_STATE_LINKED 1 /* HC sees this */ #define QH_STATE_UNLINK 2 /* HC may still see this */ @@ -407,6 +406,9 @@ struct ehci_qh { struct usb_device *dev; /* access to TT */ unsigned is_out:1; /* bulk or intr OUT */ unsigned clearing_tt:1; /* Clear-TT-Buf in progress */ + unsigned dequeue_during_giveback:1; + unsigned exception:1; /* got a fault, or an unlink + was requested */ }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index db09dae7b557..60ff4220e8b4 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -580,14 +580,8 @@ static int ohci_start_port_reset (struct usb_hcd *hcd, unsigned port) /* See usb 7.1.7.5: root hubs must issue at least 50 msec reset signaling, * not necessarily continuous ... to guard against resume signaling. - * The short timeout is safe for non-root hubs, and is backward-compatible - * with earlier Linux hosts. */ -#ifdef CONFIG_USB_SUSPEND #define PORT_RESET_MSEC 50 -#else -#define PORT_RESET_MSEC 10 -#endif /* this timer value might be vendor-specific ... */ #define PORT_RESET_HW_MSEC 10 diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c index eb35d9630237..ddfc31427bc0 100644 --- a/drivers/usb/host/ohci-omap3.c +++ b/drivers/usb/host/ohci-omap3.c @@ -31,6 +31,8 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> +#include <linux/of.h> +#include <linux/dma-mapping.h> /*-------------------------------------------------------------------------*/ @@ -112,6 +114,8 @@ static const struct hc_driver ohci_omap3_hc_driver = { /*-------------------------------------------------------------------------*/ +static u64 omap_ohci_dma_mask = DMA_BIT_MASK(32); + /* * configure so an HC device and id are always provided * always called with process context; sleeping is OK @@ -141,14 +145,13 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev) return -ENODEV; } - irq = platform_get_irq_byname(pdev, "ohci-irq"); + irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(dev, "OHCI irq failed\n"); return -ENODEV; } - res = platform_get_resource_byname(pdev, - IORESOURCE_MEM, "ohci"); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(dev, "UHH OHCI get resource failed\n"); return -ENOMEM; @@ -160,6 +163,13 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev) return -ENOMEM; } + /* + * Right now device-tree probed devices don't get dma_mask set. + * Since shared usb code relies on it, set it here for now. + * Once we have dma capability bindings this can go away. + */ + if (!pdev->dev.dma_mask) + pdev->dev.dma_mask = &omap_ohci_dma_mask; hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev, dev_name(dev)); @@ -229,12 +239,20 @@ static void ohci_hcd_omap3_shutdown(struct platform_device *pdev) hcd->driver->shutdown(hcd); } +static const struct of_device_id omap_ohci_dt_ids[] = { + { .compatible = "ti,ohci-omap3" }, + { } +}; + +MODULE_DEVICE_TABLE(of, omap_ohci_dt_ids); + static struct platform_driver ohci_hcd_omap3_driver = { .probe = ohci_hcd_omap3_probe, .remove = ohci_hcd_omap3_remove, .shutdown = ohci_hcd_omap3_shutdown, .driver = { .name = "ohci-omap3", + .of_match_table = of_match_ptr(omap_ohci_dt_ids), }, }; diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index d62f0404baaa..15ed7e8d887f 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1755,7 +1755,7 @@ sl811h_probe(struct platform_device *dev) /* for this device there's no useful distinction between the controller * and its root hub, except that the root hub only gets direct PM calls - * when CONFIG_USB_SUSPEND is enabled. + * when CONFIG_PM_RUNTIME is enabled. */ static int diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 5efdffe32365..5c124bf5d018 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -3141,10 +3141,11 @@ static int u132_probe(struct platform_device *pdev) #ifdef CONFIG_PM -/* for this device there's no useful distinction between the controller -* and its root hub, except that the root hub only gets direct PM calls -* when CONFIG_USB_SUSPEND is enabled. -*/ +/* + * for this device there's no useful distinction between the controller + * and its root hub, except that the root hub only gets direct PM calls + * when CONFIG_PM_RUNTIME is enabled. + */ static int u132_suspend(struct platform_device *pdev, pm_message_t state) { struct usb_hcd *hcd = platform_get_drvdata(pdev); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 68914429482f..187a3ec1069a 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -1075,7 +1075,7 @@ int xhci_bus_suspend(struct usb_hcd *hcd) set_bit(port_index, &bus_state->bus_suspended); } /* USB core sets remote wake mask for USB 3.0 hubs, - * including the USB 3.0 roothub, but only if CONFIG_USB_SUSPEND + * including the USB 3.0 roothub, but only if CONFIG_PM_RUNTIME * is enabled, so also enable remote wake here. */ if (hcd->self.root_hub->do_remote_wakeup) { diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 35616ffbe3ae..6dc238c592bc 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1022,44 +1022,24 @@ void xhci_copy_ep0_dequeue_into_input_ctx(struct xhci_hcd *xhci, * is attached to (or the roothub port its ancestor hub is attached to). All we * know is the index of that port under either the USB 2.0 or the USB 3.0 * roothub, but that doesn't give us the real index into the HW port status - * registers. Scan through the xHCI roothub port array, looking for the Nth - * entry of the correct port speed. Return the port number of that entry. + * registers. Call xhci_find_raw_port_number() to get real index. */ static u32 xhci_find_real_port_number(struct xhci_hcd *xhci, struct usb_device *udev) { struct usb_device *top_dev; - unsigned int num_similar_speed_ports; - unsigned int faked_port_num; - int i; + struct usb_hcd *hcd; + + if (udev->speed == USB_SPEED_SUPER) + hcd = xhci->shared_hcd; + else + hcd = xhci->main_hcd; for (top_dev = udev; top_dev->parent && top_dev->parent->parent; top_dev = top_dev->parent) /* Found device below root hub */; - faked_port_num = top_dev->portnum; - for (i = 0, num_similar_speed_ports = 0; - i < HCS_MAX_PORTS(xhci->hcs_params1); i++) { - u8 port_speed = xhci->port_array[i]; - - /* - * Skip ports that don't have known speeds, or have duplicate - * Extended Capabilities port speed entries. - */ - if (port_speed == 0 || port_speed == DUPLICATE_ENTRY) - continue; - /* - * USB 3.0 ports are always under a USB 3.0 hub. USB 2.0 and - * 1.1 ports are under the USB 2.0 hub. If the port speed - * matches the device speed, it's a similar speed port. - */ - if ((port_speed == 0x03) == (udev->speed == USB_SPEED_SUPER)) - num_similar_speed_ports++; - if (num_similar_speed_ports == faked_port_num) - /* Roothub ports are numbered from 1 to N */ - return i+1; - } - return 0; + return xhci_find_raw_port_number(hcd, top_dev->portnum); } /* Setup an xHCI virtual device for a Set Address command */ diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index af259e0ec172..1a30c380043c 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -313,6 +313,7 @@ static const struct hc_driver xhci_pci_hc_driver = { .set_usb2_hw_lpm = xhci_set_usb2_hardware_lpm, .enable_usb3_lpm_timeout = xhci_enable_usb3_lpm_timeout, .disable_usb3_lpm_timeout = xhci_disable_usb3_lpm_timeout, + .find_raw_port_number = xhci_find_raw_port_number, }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 882875465301..1969c001b3f9 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1599,14 +1599,20 @@ static void handle_port_status(struct xhci_hcd *xhci, max_ports = HCS_MAX_PORTS(xhci->hcs_params1); if ((port_id <= 0) || (port_id > max_ports)) { xhci_warn(xhci, "Invalid port id %d\n", port_id); - bogus_port_status = true; - goto cleanup; + inc_deq(xhci, xhci->event_ring); + return; } /* Figure out which usb_hcd this port is attached to: * is it a USB 3.0 port or a USB 2.0/1.1 port? */ major_revision = xhci->port_array[port_id - 1]; + + /* Find the right roothub. */ + hcd = xhci_to_hcd(xhci); + if ((major_revision == 0x03) != (hcd->speed == HCD_USB3)) + hcd = xhci->shared_hcd; + if (major_revision == 0) { xhci_warn(xhci, "Event for port %u not in " "Extended Capabilities, ignoring.\n", @@ -1629,10 +1635,6 @@ static void handle_port_status(struct xhci_hcd *xhci, * into the index into the ports on the correct split roothub, and the * correct bus_state structure. */ - /* Find the right roothub. */ - hcd = xhci_to_hcd(xhci); - if ((major_revision == 0x03) != (hcd->speed == HCD_USB3)) - hcd = xhci->shared_hcd; bus_state = &xhci->bus_state[hcd_index(hcd)]; if (hcd->speed == HCD_USB3) port_array = xhci->usb3_ports; @@ -2027,8 +2029,8 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, if (event_trb != ep_ring->dequeue && event_trb != td->last_trb) td->urb->actual_length = - td->urb->transfer_buffer_length - - TRB_LEN(le32_to_cpu(event->transfer_len)); + td->urb->transfer_buffer_length - + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); else td->urb->actual_length = 0; @@ -2060,7 +2062,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, /* Maybe the event was for the data stage? */ td->urb->actual_length = td->urb->transfer_buffer_length - - TRB_LEN(le32_to_cpu(event->transfer_len)); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); xhci_dbg(xhci, "Waiting for status " "stage event\n"); return 0; @@ -2096,7 +2098,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, /* handle completion code */ switch (trb_comp_code) { case COMP_SUCCESS: - if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) { + if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) { frame->status = 0; break; } @@ -2141,7 +2143,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])); } len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) - - TRB_LEN(le32_to_cpu(event->transfer_len)); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); if (trb_comp_code != COMP_STOP_INVAL) { frame->actual_length = len; @@ -2199,7 +2201,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, case COMP_SUCCESS: /* Double check that the HW transferred everything. */ if (event_trb != td->last_trb || - TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { xhci_warn(xhci, "WARN Successful completion " "on short TX\n"); if (td->urb->transfer_flags & URB_SHORT_NOT_OK) @@ -2227,18 +2229,18 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, "%d bytes untransferred\n", td->urb->ep->desc.bEndpointAddress, td->urb->transfer_buffer_length, - TRB_LEN(le32_to_cpu(event->transfer_len))); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len))); /* Fast path - was this the last TRB in the TD for this URB? */ if (event_trb == td->last_trb) { - if (TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { + if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { td->urb->actual_length = td->urb->transfer_buffer_length - - TRB_LEN(le32_to_cpu(event->transfer_len)); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); if (td->urb->transfer_buffer_length < td->urb->actual_length) { xhci_warn(xhci, "HC gave bad length " "of %d bytes left\n", - TRB_LEN(le32_to_cpu(event->transfer_len))); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len))); td->urb->actual_length = 0; if (td->urb->transfer_flags & URB_SHORT_NOT_OK) *status = -EREMOTEIO; @@ -2280,7 +2282,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, if (trb_comp_code != COMP_STOP_INVAL) td->urb->actual_length += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) - - TRB_LEN(le32_to_cpu(event->transfer_len)); + EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); } return finish_td(xhci, td, event_trb, event, ep, status, false); @@ -2368,7 +2370,7 @@ static int handle_tx_event(struct xhci_hcd *xhci, * transfer type */ case COMP_SUCCESS: - if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) + if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) break; if (xhci->quirks & XHCI_TRUST_TX_LENGTH) trb_comp_code = COMP_SHORT_TX; @@ -2461,14 +2463,21 @@ static int handle_tx_event(struct xhci_hcd *xhci, * TD list. */ if (list_empty(&ep_ring->td_list)) { - xhci_warn(xhci, "WARN Event TRB for slot %d ep %d " - "with no TDs queued?\n", - TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), - ep_index); - xhci_dbg(xhci, "Event TRB with TRB type ID %u\n", - (le32_to_cpu(event->flags) & - TRB_TYPE_BITMASK)>>10); - xhci_print_trb_offsets(xhci, (union xhci_trb *) event); + /* + * A stopped endpoint may generate an extra completion + * event if the device was suspended. Don't print + * warnings. + */ + if (!(trb_comp_code == COMP_STOP || + trb_comp_code == COMP_STOP_INVAL)) { + xhci_warn(xhci, "WARN Event TRB for slot %d ep %d with no TDs queued?\n", + TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), + ep_index); + xhci_dbg(xhci, "Event TRB with TRB type ID %u\n", + (le32_to_cpu(event->flags) & + TRB_TYPE_BITMASK)>>10); + xhci_print_trb_offsets(xhci, (union xhci_trb *) event); + } if (ep->skip) { ep->skip = false; xhci_dbg(xhci, "td_list is empty while skip " diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index f1f01a834ba7..5156b720a53a 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -350,7 +350,7 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd) * generate interrupts. Don't even try to enable MSI. */ if (xhci->quirks & XHCI_BROKEN_MSI) - return 0; + goto legacy_irq; /* unregister the legacy interrupt */ if (hcd->irq) @@ -371,6 +371,7 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd) return -EINVAL; } + legacy_irq: /* fall back to legacy interrupt*/ ret = request_irq(pdev->irq, &usb_hcd_irq, IRQF_SHARED, hcd->irq_descr, hcd); @@ -3778,7 +3779,29 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) return 0; } -#ifdef CONFIG_USB_SUSPEND +/* + * Transfer the port index into real index in the HW port status + * registers. Caculate offset between the port's PORTSC register + * and port status base. Divide the number of per port register + * to get the real index. The raw port number bases 1. + */ +int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + __le32 __iomem *base_addr = &xhci->op_regs->port_status_base; + __le32 __iomem *addr; + int raw_port; + + if (hcd->speed != HCD_USB3) + addr = xhci->usb2_ports[port1 - 1]; + else + addr = xhci->usb3_ports[port1 - 1]; + + raw_port = (addr - base_addr)/NUM_PORT_REGS + 1; + return raw_port; +} + +#ifdef CONFIG_PM_RUNTIME /* BESL to HIRD Encoding array for USB2 LPM */ static int xhci_besl_encoding[16] = {125, 150, 200, 300, 400, 500, 1000, 2000, @@ -4028,7 +4051,7 @@ int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev) return 0; } -#endif /* CONFIG_USB_SUSPEND */ +#endif /* CONFIG_PM_RUNTIME */ /*---------------------- USB 3.0 Link PM functions ------------------------*/ diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index f791bd0aee6c..63582719e0fb 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -206,8 +206,8 @@ struct xhci_op_regs { /* bits 12:31 are reserved (and should be preserved on writes). */ /* IMAN - Interrupt Management Register */ -#define IMAN_IP (1 << 1) -#define IMAN_IE (1 << 0) +#define IMAN_IE (1 << 1) +#define IMAN_IP (1 << 0) /* USBSTS - USB status - status bitmasks */ /* HC not running - set to 1 when run/stop bit is cleared. */ @@ -972,6 +972,10 @@ struct xhci_transfer_event { __le32 flags; }; +/* Transfer event TRB length bit mask */ +/* bits 0:23 */ +#define EVENT_TRB_LEN(p) ((p) & 0xffffff) + /** Transfer Event bit fields **/ #define TRB_TO_EP_ID(p) (((p) >> 16) & 0x1f) @@ -1829,6 +1833,7 @@ void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array, int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength); int xhci_hub_status_data(struct usb_hcd *hcd, char *buf); +int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1); #ifdef CONFIG_PM int xhci_bus_suspend(struct usb_hcd *hcd); diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c index 0fc6e5fc745f..ba6a5d6e618e 100644 --- a/drivers/usb/misc/appledisplay.c +++ b/drivers/usb/misc/appledisplay.c @@ -63,6 +63,7 @@ static const struct usb_device_id appledisplay_table[] = { { APPLEDISPLAY_DEVICE(0x9219) }, { APPLEDISPLAY_DEVICE(0x921c) }, { APPLEDISPLAY_DEVICE(0x921d) }, + { APPLEDISPLAY_DEVICE(0x9236) }, /* Terminating entry */ { } diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index dd573abd2d1e..c21386ec5d35 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -3084,7 +3084,7 @@ static int sisusb_probe(struct usb_interface *intf, /* Allocate memory for our private */ if (!(sisusb = kzalloc(sizeof(*sisusb), GFP_KERNEL))) { - dev_err(&sisusb->sisusb_dev->dev, "Failed to allocate memory for private data\n"); + dev_err(&dev->dev, "Failed to allocate memory for private data\n"); return -ENOMEM; } kref_init(&sisusb->kref); diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c index f713f6aeb6e5..d3a1cce1bf9c 100644 --- a/drivers/usb/misc/usb3503.c +++ b/drivers/usb/misc/usb3503.c @@ -307,18 +307,7 @@ static struct i2c_driver usb3503_driver = { .id_table = usb3503_id, }; -static int __init usb3503_init(void) -{ - return i2c_add_driver(&usb3503_driver); -} - -static void __exit usb3503_exit(void) -{ - i2c_del_driver(&usb3503_driver); -} - -module_init(usb3503_init); -module_exit(usb3503_exit); +module_i2c_driver(usb3503_driver); MODULE_AUTHOR("Dongjin Kim <tobetter@gmail.com>"); MODULE_DESCRIPTION("USB3503 USB HUB driver"); diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index ea7e591093ee..b903b744a224 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -327,7 +327,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci) u8 devctl = musb_readb(mregs, MUSB_DEVCTL); int err; - err = musb->int_usb & USB_INTR_VBUSERROR; + err = musb->int_usb & MUSB_INTR_VBUSERROR; if (err) { /* * The Mentor core doesn't debounce VBUS as needed diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 4be48651b5a8..ba7092349fa9 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -99,7 +99,9 @@ static inline void map_dma_buffer(struct musb_request *request, static inline void unmap_dma_buffer(struct musb_request *request, struct musb *musb) { - if (!is_buffer_mapped(request)) + struct musb_ep *musb_ep = request->ep; + + if (!is_buffer_mapped(request) || !musb_ep->dma) return; if (request->request.dma == DMA_ADDR_INVALID) { @@ -153,7 +155,10 @@ __acquires(ep->musb->lock) ep->busy = 1; spin_unlock(&musb->lock); - unmap_dma_buffer(req, musb); + + if (!dma_mapping_error(&musb->g.dev, request->dma)) + unmap_dma_buffer(req, musb); + if (request->status == 0) dev_dbg(musb->controller, "%s done request %p, %d/%d\n", ep->end_point.name, request, diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 372db48fa269..3a7fec957ca7 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -139,6 +139,7 @@ config USB_ISP1301 tristate "NXP ISP1301 USB transceiver support" depends on USB || USB_GADGET depends on I2C + select USB_OTG_UTILS help Say Y here to add support for the NXP ISP1301 USB transceiver driver. This chip is typically used as USB transceiver for USB host, gadget diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c index 8fe0c3b95261..ae481afcb3ec 100644 --- a/drivers/usb/phy/phy-isp1301-omap.c +++ b/drivers/usb/phy/phy-isp1301-omap.c @@ -1212,7 +1212,7 @@ static void isp1301_release(struct device *dev) static struct isp1301 *the_transceiver; -static int __exit isp1301_remove(struct i2c_client *i2c) +static int isp1301_remove(struct i2c_client *i2c) { struct isp1301 *isp; @@ -1634,7 +1634,7 @@ static struct i2c_driver isp1301_driver = { .name = "isp1301_omap", }, .probe = isp1301_probe, - .remove = __exit_p(isp1301_remove), + .remove = isp1301_remove, .id_table = isp1301_id, }; diff --git a/drivers/usb/phy/phy-mv-u3d-usb.c b/drivers/usb/phy/phy-mv-u3d-usb.c index cb7e70f17709..f7838a43347c 100644 --- a/drivers/usb/phy/phy-mv-u3d-usb.c +++ b/drivers/usb/phy/phy-mv-u3d-usb.c @@ -313,7 +313,7 @@ err: return ret; } -static int __exit mv_u3d_phy_remove(struct platform_device *pdev) +static int mv_u3d_phy_remove(struct platform_device *pdev) { struct mv_u3d_phy *mv_u3d_phy = platform_get_drvdata(pdev); diff --git a/drivers/usb/phy/phy-twl4030-usb.c b/drivers/usb/phy/phy-twl4030-usb.c index 13e17ae5ecd9..8f78d2d40722 100644 --- a/drivers/usb/phy/phy-twl4030-usb.c +++ b/drivers/usb/phy/phy-twl4030-usb.c @@ -727,7 +727,7 @@ static int twl4030_usb_probe(struct platform_device *pdev) return 0; } -static int __exit twl4030_usb_remove(struct platform_device *pdev) +static int twl4030_usb_remove(struct platform_device *pdev) { struct twl4030_usb *twl = platform_get_drvdata(pdev); int val; @@ -768,7 +768,7 @@ MODULE_DEVICE_TABLE(of, twl4030_usb_id_table); static struct platform_driver twl4030_usb_driver = { .probe = twl4030_usb_probe, - .remove = __exit_p(twl4030_usb_remove), + .remove = twl4030_usb_remove, .driver = { .name = "twl4030_usb", .owner = THIS_MODULE, diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c index e841474d07b8..9de7ada90a8b 100644 --- a/drivers/usb/phy/phy-twl6030-usb.c +++ b/drivers/usb/phy/phy-twl6030-usb.c @@ -400,7 +400,7 @@ static int twl6030_usb_probe(struct platform_device *pdev) return 0; } -static int __exit twl6030_usb_remove(struct platform_device *pdev) +static int twl6030_usb_remove(struct platform_device *pdev) { struct twl6030_usb *twl = platform_get_drvdata(pdev); @@ -427,7 +427,7 @@ MODULE_DEVICE_TABLE(of, twl6030_usb_id_table); static struct platform_driver twl6030_usb_driver = { .probe = twl6030_usb_probe, - .remove = __exit_p(twl6030_usb_remove), + .remove = twl6030_usb_remove, .driver = { .name = "twl6030_usb", .owner = THIS_MODULE, diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index cbd904b8fba5..3b16118cbf62 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -62,8 +62,6 @@ static int is_irda(struct usb_serial *serial) } struct ark3116_private { - wait_queue_head_t delta_msr_wait; - struct async_icount icount; int irda; /* 1 for irda device */ /* protects hw register updates */ @@ -146,7 +144,6 @@ static int ark3116_port_probe(struct usb_serial_port *port) if (!priv) return -ENOMEM; - init_waitqueue_head(&priv->delta_msr_wait); mutex_init(&priv->hw_lock); spin_lock_init(&priv->status_lock); @@ -343,18 +340,15 @@ static void ark3116_close(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; - if (serial->dev) { - /* disable DMA */ - ark3116_write_reg(serial, UART_FCR, 0); - - /* deactivate interrupts */ - ark3116_write_reg(serial, UART_IER, 0); + /* disable DMA */ + ark3116_write_reg(serial, UART_FCR, 0); - usb_serial_generic_close(port); - if (serial->num_interrupt_in) - usb_kill_urb(port->interrupt_in_urb); - } + /* deactivate interrupts */ + ark3116_write_reg(serial, UART_IER, 0); + usb_serial_generic_close(port); + if (serial->num_interrupt_in) + usb_kill_urb(port->interrupt_in_urb); } static int ark3116_open(struct tty_struct *tty, struct usb_serial_port *port) @@ -407,31 +401,10 @@ err_out: return result; } -static int ark3116_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct ark3116_private *priv = usb_get_serial_port_data(port); - struct async_icount cnow = priv->icount; - icount->cts = cnow.cts; - icount->dsr = cnow.dsr; - icount->rng = cnow.rng; - icount->dcd = cnow.dcd; - icount->rx = cnow.rx; - icount->tx = cnow.tx; - icount->frame = cnow.frame; - icount->overrun = cnow.overrun; - icount->parity = cnow.parity; - icount->brk = cnow.brk; - icount->buf_overrun = cnow.buf_overrun; - return 0; -} - static int ark3116_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct usb_serial_port *port = tty->driver_data; - struct ark3116_private *priv = usb_get_serial_port_data(port); struct serial_struct serstruct; void __user *user_arg = (void __user *)arg; @@ -453,29 +426,6 @@ static int ark3116_ioctl(struct tty_struct *tty, if (copy_from_user(&serstruct, user_arg, sizeof(serstruct))) return -EFAULT; return 0; - case TIOCMIWAIT: - for (;;) { - struct async_icount prev = priv->icount; - interruptible_sleep_on(&priv->delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - if ((prev.rng == priv->icount.rng) && - (prev.dsr == priv->icount.dsr) && - (prev.dcd == priv->icount.dcd) && - (prev.cts == priv->icount.cts)) - return -EIO; - if ((arg & TIOCM_RNG && - (prev.rng != priv->icount.rng)) || - (arg & TIOCM_DSR && - (prev.dsr != priv->icount.dsr)) || - (arg & TIOCM_CD && - (prev.dcd != priv->icount.dcd)) || - (arg & TIOCM_CTS && - (prev.cts != priv->icount.cts))) - return 0; - } - break; } return -ENOIOCTLCMD; @@ -573,14 +523,14 @@ static void ark3116_update_msr(struct usb_serial_port *port, __u8 msr) if (msr & UART_MSR_ANY_DELTA) { /* update input line counters */ if (msr & UART_MSR_DCTS) - priv->icount.cts++; + port->icount.cts++; if (msr & UART_MSR_DDSR) - priv->icount.dsr++; + port->icount.dsr++; if (msr & UART_MSR_DDCD) - priv->icount.dcd++; + port->icount.dcd++; if (msr & UART_MSR_TERI) - priv->icount.rng++; - wake_up_interruptible(&priv->delta_msr_wait); + port->icount.rng++; + wake_up_interruptible(&port->port.delta_msr_wait); } } @@ -596,13 +546,13 @@ static void ark3116_update_lsr(struct usb_serial_port *port, __u8 lsr) if (lsr&UART_LSR_BRK_ERROR_BITS) { if (lsr & UART_LSR_BI) - priv->icount.brk++; + port->icount.brk++; if (lsr & UART_LSR_FE) - priv->icount.frame++; + port->icount.frame++; if (lsr & UART_LSR_PE) - priv->icount.parity++; + port->icount.parity++; if (lsr & UART_LSR_OE) - priv->icount.overrun++; + port->icount.overrun++; } } @@ -720,7 +670,8 @@ static struct usb_serial_driver ark3116_device = { .ioctl = ark3116_ioctl, .tiocmget = ark3116_tiocmget, .tiocmset = ark3116_tiocmset, - .get_icount = ark3116_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .open = ark3116_open, .close = ark3116_close, .break_ctl = ark3116_break_ctl, diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index 37decb13d7eb..3c4db6d196c6 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -106,14 +106,15 @@ static int usb_serial_device_remove(struct device *dev) /* make sure suspend/resume doesn't race against port_remove */ usb_autopm_get_interface(port->serial->interface); + minor = port->number; + tty_unregister_device(usb_serial_tty_driver, minor); + device_remove_file(&port->dev, &dev_attr_port_number); driver = port->serial->type; if (driver->port_remove) retval = driver->port_remove(port); - minor = port->number; - tty_unregister_device(usb_serial_tty_driver, minor); dev_info(dev, "%s converter now disconnected from ttyUSB%d\n", driver->description, minor); diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index d255f66e708e..c2a4171ab9cb 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -80,7 +80,6 @@ MODULE_DEVICE_TABLE(usb, id_table); struct ch341_private { spinlock_t lock; /* access lock */ - wait_queue_head_t delta_msr_wait; /* wait queue for modem status */ unsigned baud_rate; /* set baud rate */ u8 line_control; /* set line control value RTS/DTR */ u8 line_status; /* active status of modem control inputs */ @@ -252,7 +251,6 @@ static int ch341_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); priv->baud_rate = DEFAULT_BAUD_RATE; priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR; @@ -298,7 +296,6 @@ static void ch341_dtr_rts(struct usb_serial_port *port, int on) priv->line_control &= ~(CH341_BIT_RTS | CH341_BIT_DTR); spin_unlock_irqrestore(&priv->lock, flags); ch341_set_handshake(port->serial->dev, priv->line_control); - wake_up_interruptible(&priv->delta_msr_wait); } static void ch341_close(struct usb_serial_port *port) @@ -491,7 +488,7 @@ static void ch341_read_int_callback(struct urb *urb) tty_kref_put(tty); } - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); } exit: @@ -502,8 +499,9 @@ exit: __func__, status); } -static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) +static int ch341_tiocmiwait(struct tty_struct *tty, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct ch341_private *priv = usb_get_serial_port_data(port); unsigned long flags; u8 prevstatus; @@ -517,11 +515,14 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (!multi_change) { - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->port.delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; multi_change = priv->multi_status_change; @@ -541,26 +542,6 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) return 0; } -static int ch341_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - - dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__, port->number, cmd); - - switch (cmd) { - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, port->number); - return wait_modem_info(port, arg); - - default: - dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd); - break; - } - - return -ENOIOCTLCMD; -} - static int ch341_tiocmget(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; @@ -610,11 +591,11 @@ static struct usb_serial_driver ch341_device = { .dtr_rts = ch341_dtr_rts, .carrier_raised = ch341_carrier_raised, .close = ch341_close, - .ioctl = ch341_ioctl, .set_termios = ch341_set_termios, .break_ctl = ch341_break_ctl, .tiocmget = ch341_tiocmget, .tiocmset = ch341_tiocmset, + .tiocmiwait = ch341_tiocmiwait, .read_int_callback = ch341_read_int_callback, .port_probe = ch341_port_probe, .port_remove = ch341_port_remove, diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 4747d1c328ff..2c659553c07c 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -462,11 +462,7 @@ static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) static void cp210x_close(struct usb_serial_port *port) { usb_serial_generic_close(port); - - mutex_lock(&port->serial->disc_mutex); - if (!port->serial->disconnected) - cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE); - mutex_unlock(&port->serial->disc_mutex); + cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE); } /* diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 629bd2894506..781426230d69 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -51,7 +51,6 @@ #define CYBERJACK_PRODUCT_ID 0x0100 /* Function prototypes */ -static void cyberjack_disconnect(struct usb_serial *serial); static int cyberjack_port_probe(struct usb_serial_port *port); static int cyberjack_port_remove(struct usb_serial_port *port); static int cyberjack_open(struct tty_struct *tty, @@ -79,7 +78,6 @@ static struct usb_serial_driver cyberjack_device = { .description = "Reiner SCT Cyberjack USB card reader", .id_table = id_table, .num_ports = 1, - .disconnect = cyberjack_disconnect, .port_probe = cyberjack_port_probe, .port_remove = cyberjack_port_remove, .open = cyberjack_open, @@ -130,20 +128,14 @@ static int cyberjack_port_remove(struct usb_serial_port *port) { struct cyberjack_private *priv; + usb_kill_urb(port->interrupt_in_urb); + priv = usb_get_serial_port_data(port); kfree(priv); return 0; } -static void cyberjack_disconnect(struct usb_serial *serial) -{ - int i; - - for (i = 0; i < serial->num_ports; ++i) - usb_kill_urb(serial->port[i]->interrupt_in_urb); -} - static int cyberjack_open(struct tty_struct *tty, struct usb_serial_port *port) { @@ -166,11 +158,8 @@ static int cyberjack_open(struct tty_struct *tty, static void cyberjack_close(struct usb_serial_port *port) { - if (port->serial->dev) { - /* shutdown any bulk reads that might be going on */ - usb_kill_urb(port->write_urb); - usb_kill_urb(port->read_urb); - } + usb_kill_urb(port->write_urb); + usb_kill_urb(port->read_urb); } static int cyberjack_write(struct tty_struct *tty, diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 8efa19d0e9fb..d341555d37d8 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -111,7 +111,6 @@ struct cypress_private { int baud_rate; /* stores current baud rate in integer form */ int isthrottled; /* if throttled, discard reads */ - wait_queue_head_t delta_msr_wait; /* used for TIOCMIWAIT */ char prev_status, diff_status; /* used for TIOCMIWAIT */ /* we pass a pointer to this as the argument sent to cypress_set_termios old_termios */ @@ -130,13 +129,12 @@ static int cypress_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); static void cypress_send(struct usb_serial_port *port); static int cypress_write_room(struct tty_struct *tty); -static int cypress_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg); static void cypress_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old); static int cypress_tiocmget(struct tty_struct *tty); static int cypress_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); +static int cypress_tiocmiwait(struct tty_struct *tty, unsigned long arg); static int cypress_chars_in_buffer(struct tty_struct *tty); static void cypress_throttle(struct tty_struct *tty); static void cypress_unthrottle(struct tty_struct *tty); @@ -159,10 +157,10 @@ static struct usb_serial_driver cypress_earthmate_device = { .dtr_rts = cypress_dtr_rts, .write = cypress_write, .write_room = cypress_write_room, - .ioctl = cypress_ioctl, .set_termios = cypress_set_termios, .tiocmget = cypress_tiocmget, .tiocmset = cypress_tiocmset, + .tiocmiwait = cypress_tiocmiwait, .chars_in_buffer = cypress_chars_in_buffer, .throttle = cypress_throttle, .unthrottle = cypress_unthrottle, @@ -185,10 +183,10 @@ static struct usb_serial_driver cypress_hidcom_device = { .dtr_rts = cypress_dtr_rts, .write = cypress_write, .write_room = cypress_write_room, - .ioctl = cypress_ioctl, .set_termios = cypress_set_termios, .tiocmget = cypress_tiocmget, .tiocmset = cypress_tiocmset, + .tiocmiwait = cypress_tiocmiwait, .chars_in_buffer = cypress_chars_in_buffer, .throttle = cypress_throttle, .unthrottle = cypress_unthrottle, @@ -211,10 +209,10 @@ static struct usb_serial_driver cypress_ca42v2_device = { .dtr_rts = cypress_dtr_rts, .write = cypress_write, .write_room = cypress_write_room, - .ioctl = cypress_ioctl, .set_termios = cypress_set_termios, .tiocmget = cypress_tiocmget, .tiocmset = cypress_tiocmset, + .tiocmiwait = cypress_tiocmiwait, .chars_in_buffer = cypress_chars_in_buffer, .throttle = cypress_throttle, .unthrottle = cypress_unthrottle, @@ -449,7 +447,6 @@ static int cypress_generic_port_probe(struct usb_serial_port *port) kfree(priv); return -ENOMEM; } - init_waitqueue_head(&priv->delta_msr_wait); usb_reset_configuration(serial->dev); @@ -635,12 +632,6 @@ static void cypress_close(struct usb_serial_port *port) struct cypress_private *priv = usb_get_serial_port_data(port); unsigned long flags; - /* writing is potentially harmful, lock must be taken */ - mutex_lock(&port->serial->disc_mutex); - if (port->serial->disconnected) { - mutex_unlock(&port->serial->disc_mutex); - return; - } spin_lock_irqsave(&priv->lock, flags); kfifo_reset_out(&priv->write_fifo); spin_unlock_irqrestore(&priv->lock, flags); @@ -652,7 +643,6 @@ static void cypress_close(struct usb_serial_port *port) if (stats) dev_info(&port->dev, "Statistics: %d Bytes In | %d Bytes Out | %d Commands Issued\n", priv->bytes_in, priv->bytes_out, priv->cmd_count); - mutex_unlock(&port->serial->disc_mutex); } /* cypress_close */ @@ -857,51 +847,43 @@ static int cypress_tiocmset(struct tty_struct *tty, } -static int cypress_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg) +static int cypress_tiocmiwait(struct tty_struct *tty, unsigned long arg) { struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); - - dev_dbg(&port->dev, "%s - port %d, cmd 0x%.4x\n", __func__, port->number, cmd); - - switch (cmd) { - /* This code comes from drivers/char/serial.c and ftdi_sio.c */ - case TIOCMIWAIT: - while (priv != NULL) { - interruptible_sleep_on(&priv->delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - else { - char diff = priv->diff_status; - if (diff == 0) - return -EIO; /* no change => error */ - - /* consume all events */ - priv->diff_status = 0; - - /* return 0 if caller wanted to know about - these bits */ - if (((arg & TIOCM_RNG) && (diff & UART_RI)) || - ((arg & TIOCM_DSR) && (diff & UART_DSR)) || - ((arg & TIOCM_CD) && (diff & UART_CD)) || - ((arg & TIOCM_CTS) && (diff & UART_CTS))) - return 0; - /* otherwise caller can't care less about what - * happened, and so we continue to wait for - * more events. - */ - } - } - return 0; - default: - break; + char diff; + + for (;;) { + interruptible_sleep_on(&port->port.delta_msr_wait); + /* see if a signal did it */ + if (signal_pending(current)) + return -ERESTARTSYS; + + if (port->serial->disconnected) + return -EIO; + + diff = priv->diff_status; + if (diff == 0) + return -EIO; /* no change => error */ + + /* consume all events */ + priv->diff_status = 0; + + /* return 0 if caller wanted to know about + these bits */ + if (((arg & TIOCM_RNG) && (diff & UART_RI)) || + ((arg & TIOCM_DSR) && (diff & UART_DSR)) || + ((arg & TIOCM_CD) && (diff & UART_CD)) || + ((arg & TIOCM_CTS) && (diff & UART_CTS))) + return 0; + /* otherwise caller can't care less about what + * happened, and so we continue to wait for + * more events. + */ } - dev_dbg(&port->dev, "%s - arg not supported - it was 0x%04x - check include/asm/ioctls.h\n", __func__, cmd); - return -ENOIOCTLCMD; -} /* cypress_ioctl */ + return 0; +} static void cypress_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) @@ -1187,7 +1169,7 @@ static void cypress_read_int_callback(struct urb *urb) if (priv->current_status != priv->prev_status) { priv->diff_status |= priv->current_status ^ priv->prev_status; - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); priv->prev_status = priv->current_status; } spin_unlock_irqrestore(&priv->lock, flags); diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index ebe45fa0ed50..32873b406402 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -196,7 +196,6 @@ struct digi_port { unsigned char dp_out_buf[DIGI_OUT_BUF_SIZE]; int dp_write_urb_in_use; unsigned int dp_modem_signals; - wait_queue_head_t dp_modem_change_wait; int dp_transmit_idle; wait_queue_head_t dp_transmit_idle_wait; int dp_throttled; @@ -1149,53 +1148,51 @@ static void digi_close(struct usb_serial_port *port) if (port->serial->disconnected) goto exit; - if (port->serial->dev) { - /* FIXME: Transmit idle belongs in the wait_unti_sent path */ - digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT); - - /* disable input flow control */ - buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; - buf[1] = priv->dp_port_num; - buf[2] = DIGI_DISABLE; - buf[3] = 0; - - /* disable output flow control */ - buf[4] = DIGI_CMD_SET_OUTPUT_FLOW_CONTROL; - buf[5] = priv->dp_port_num; - buf[6] = DIGI_DISABLE; - buf[7] = 0; - - /* disable reading modem signals automatically */ - buf[8] = DIGI_CMD_READ_INPUT_SIGNALS; - buf[9] = priv->dp_port_num; - buf[10] = DIGI_DISABLE; - buf[11] = 0; - - /* disable receive */ - buf[12] = DIGI_CMD_RECEIVE_ENABLE; - buf[13] = priv->dp_port_num; - buf[14] = DIGI_DISABLE; - buf[15] = 0; - - /* flush fifos */ - buf[16] = DIGI_CMD_IFLUSH_FIFO; - buf[17] = priv->dp_port_num; - buf[18] = DIGI_FLUSH_TX | DIGI_FLUSH_RX; - buf[19] = 0; - - ret = digi_write_oob_command(port, buf, 20, 0); - if (ret != 0) - dev_dbg(&port->dev, "digi_close: write oob failed, ret=%d\n", ret); - - /* wait for final commands on oob port to complete */ - prepare_to_wait(&priv->dp_flush_wait, &wait, - TASK_INTERRUPTIBLE); - schedule_timeout(DIGI_CLOSE_TIMEOUT); - finish_wait(&priv->dp_flush_wait, &wait); - - /* shutdown any outstanding bulk writes */ - usb_kill_urb(port->write_urb); - } + /* FIXME: Transmit idle belongs in the wait_unti_sent path */ + digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT); + + /* disable input flow control */ + buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; + buf[1] = priv->dp_port_num; + buf[2] = DIGI_DISABLE; + buf[3] = 0; + + /* disable output flow control */ + buf[4] = DIGI_CMD_SET_OUTPUT_FLOW_CONTROL; + buf[5] = priv->dp_port_num; + buf[6] = DIGI_DISABLE; + buf[7] = 0; + + /* disable reading modem signals automatically */ + buf[8] = DIGI_CMD_READ_INPUT_SIGNALS; + buf[9] = priv->dp_port_num; + buf[10] = DIGI_DISABLE; + buf[11] = 0; + + /* disable receive */ + buf[12] = DIGI_CMD_RECEIVE_ENABLE; + buf[13] = priv->dp_port_num; + buf[14] = DIGI_DISABLE; + buf[15] = 0; + + /* flush fifos */ + buf[16] = DIGI_CMD_IFLUSH_FIFO; + buf[17] = priv->dp_port_num; + buf[18] = DIGI_FLUSH_TX | DIGI_FLUSH_RX; + buf[19] = 0; + + ret = digi_write_oob_command(port, buf, 20, 0); + if (ret != 0) + dev_dbg(&port->dev, "digi_close: write oob failed, ret=%d\n", + ret); + /* wait for final commands on oob port to complete */ + prepare_to_wait(&priv->dp_flush_wait, &wait, + TASK_INTERRUPTIBLE); + schedule_timeout(DIGI_CLOSE_TIMEOUT); + finish_wait(&priv->dp_flush_wait, &wait); + + /* shutdown any outstanding bulk writes */ + usb_kill_urb(port->write_urb); exit: spin_lock_irq(&priv->dp_port_lock); priv->dp_write_urb_in_use = 0; @@ -1252,7 +1249,6 @@ static int digi_port_init(struct usb_serial_port *port, unsigned port_num) spin_lock_init(&priv->dp_port_lock); priv->dp_port_num = port_num; - init_waitqueue_head(&priv->dp_modem_change_wait); init_waitqueue_head(&priv->dp_transmit_idle_wait); init_waitqueue_head(&priv->dp_flush_wait); init_waitqueue_head(&priv->dp_close_wait); @@ -1543,7 +1539,6 @@ static int digi_read_oob_callback(struct urb *urb) else priv->dp_modem_signals &= ~TIOCM_CD; - wake_up_interruptible(&priv->dp_modem_change_wait); spin_unlock(&priv->dp_port_lock); } else if (opcode == DIGI_CMD_TRANSMIT_IDLE) { spin_lock(&priv->dp_port_lock); diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c index b1b2dc64b50b..090b411d893f 100644 --- a/drivers/usb/serial/f81232.c +++ b/drivers/usb/serial/f81232.c @@ -47,7 +47,6 @@ MODULE_DEVICE_TABLE(usb, id_table); struct f81232_private { spinlock_t lock; - wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; }; @@ -111,7 +110,7 @@ static void f81232_process_read_urb(struct urb *urb) line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); if (!urb->actual_length) return; @@ -243,8 +242,9 @@ static int f81232_carrier_raised(struct usb_serial_port *port) return 0; } -static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) +static int f81232_tiocmiwait(struct tty_struct *tty, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct f81232_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int prevstatus; @@ -256,11 +256,14 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->port.delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; spin_unlock_irqrestore(&priv->lock, flags); @@ -300,11 +303,6 @@ static int f81232_ioctl(struct tty_struct *tty, return -EFAULT; return 0; - - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, - port->number); - return wait_modem_info(port, arg); default: dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd); @@ -322,7 +320,6 @@ static int f81232_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); @@ -357,6 +354,7 @@ static struct usb_serial_driver f81232_device = { .set_termios = f81232_set_termios, .tiocmget = f81232_tiocmget, .tiocmset = f81232_tiocmset, + .tiocmiwait = f81232_tiocmiwait, .process_read_urb = f81232_process_read_urb, .read_int_callback = f81232_read_int_callback, .port_probe = f81232_port_probe, diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index edd162df49ca..778c54dd3dff 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1,7 +1,7 @@ /* * USB FTDI SIO driver * - * Copyright (C) 2009 - 2010 + * Copyright (C) 2009 - 2013 * Johan Hovold (jhovold@gmail.com) * Copyright (C) 1999 - 2001 * Greg Kroah-Hartman (greg@kroah.com) @@ -55,7 +55,6 @@ static __u16 vendor = FTDI_VID; static __u16 product; struct ftdi_private { - struct kref kref; enum ftdi_chip_type chip_type; /* type of device, either SIO or FT8U232AM */ int baud_base; /* baud base clock for divisor setting */ @@ -68,10 +67,7 @@ struct ftdi_private { */ int flags; /* some ASYNC_xxxx flags are supported */ unsigned long last_dtr_rts; /* saved modem control outputs */ - struct async_icount icount; - wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ char prev_status; /* Used for TIOCMIWAIT */ - bool dev_gone; /* Used to abort TIOCMIWAIT */ char transmit_empty; /* If transmitter is empty or not */ __u16 interface; /* FT2232C, FT2232H or FT4232H port interface (0 for FT232/245) */ @@ -642,6 +638,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, { USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) }, { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) }, + { USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, @@ -912,7 +909,6 @@ static int ftdi_sio_probe(struct usb_serial *serial, static int ftdi_sio_port_probe(struct usb_serial_port *port); static int ftdi_sio_port_remove(struct usb_serial_port *port); static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port); -static void ftdi_close(struct usb_serial_port *port); static void ftdi_dtr_rts(struct usb_serial_port *port, int on); static void ftdi_process_read_urb(struct urb *urb); static int ftdi_prepare_write_buffer(struct usb_serial_port *port, @@ -922,8 +918,6 @@ static void ftdi_set_termios(struct tty_struct *tty, static int ftdi_tiocmget(struct tty_struct *tty); static int ftdi_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); -static int ftdi_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount); static int ftdi_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg); static void ftdi_break_ctl(struct tty_struct *tty, int break_state); @@ -952,7 +946,6 @@ static struct usb_serial_driver ftdi_sio_device = { .port_probe = ftdi_sio_port_probe, .port_remove = ftdi_sio_port_remove, .open = ftdi_open, - .close = ftdi_close, .dtr_rts = ftdi_dtr_rts, .throttle = usb_serial_generic_throttle, .unthrottle = usb_serial_generic_unthrottle, @@ -960,7 +953,8 @@ static struct usb_serial_driver ftdi_sio_device = { .prepare_write_buffer = ftdi_prepare_write_buffer, .tiocmget = ftdi_tiocmget, .tiocmset = ftdi_tiocmset, - .get_icount = ftdi_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .ioctl = ftdi_ioctl, .set_termios = ftdi_set_termios, .break_ctl = ftdi_break_ctl, @@ -1689,12 +1683,9 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) return -ENOMEM; } - kref_init(&priv->kref); mutex_init(&priv->cfg_lock); - init_waitqueue_head(&priv->delta_msr_wait); priv->flags = ASYNC_LOW_LATENCY; - priv->dev_gone = false; if (quirk && quirk->port_probe) quirk->port_probe(priv); @@ -1829,23 +1820,13 @@ static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) return 0; } -static void ftdi_sio_priv_release(struct kref *k) -{ - struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); - - kfree(priv); -} - static int ftdi_sio_port_remove(struct usb_serial_port *port) { struct ftdi_private *priv = usb_get_serial_port_data(port); - priv->dev_gone = true; - wake_up_interruptible_all(&priv->delta_msr_wait); - remove_sysfs_attrs(port); - kref_put(&priv->kref, ftdi_sio_priv_release); + kfree(priv); return 0; } @@ -1855,7 +1836,6 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) struct ktermios dummy; struct usb_device *dev = port->serial->dev; struct ftdi_private *priv = usb_get_serial_port_data(port); - int result; /* No error checking for this (will get errors later anyway) */ /* See ftdi_sio.h for description of what is reset */ @@ -1874,12 +1854,7 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) ftdi_set_termios(tty, port, &dummy); } - /* Start reading from the device */ - result = usb_serial_generic_open(tty, port); - if (!result) - kref_get(&priv->kref); - - return result; + return usb_serial_generic_open(tty, port); } static void ftdi_dtr_rts(struct usb_serial_port *port, int on) @@ -1904,19 +1879,6 @@ static void ftdi_dtr_rts(struct usb_serial_port *port, int on) clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } -/* - * usbserial:__serial_close only calls ftdi_close if the point is open - * - * This only gets called when it is the last close - */ -static void ftdi_close(struct usb_serial_port *port) -{ - struct ftdi_private *priv = usb_get_serial_port_data(port); - - usb_serial_generic_close(port); - kref_put(&priv->kref, ftdi_sio_priv_release); -} - /* The SIO requires the first byte to have: * B0 1 * B1 0 @@ -1944,7 +1906,7 @@ static int ftdi_prepare_write_buffer(struct usb_serial_port *port, c = kfifo_out(&port->write_fifo, &buffer[i + 1], len); if (!c) break; - priv->icount.tx += c; + port->icount.tx += c; buffer[i] = (c << 2) + 1; count += c + 1; } @@ -1952,7 +1914,7 @@ static int ftdi_prepare_write_buffer(struct usb_serial_port *port, } else { count = kfifo_out_locked(&port->write_fifo, dest, size, &port->lock); - priv->icount.tx += count; + port->icount.tx += count; } return count; @@ -1981,15 +1943,15 @@ static int ftdi_process_packet(struct usb_serial_port *port, char diff_status = status ^ priv->prev_status; if (diff_status & FTDI_RS0_CTS) - priv->icount.cts++; + port->icount.cts++; if (diff_status & FTDI_RS0_DSR) - priv->icount.dsr++; + port->icount.dsr++; if (diff_status & FTDI_RS0_RI) - priv->icount.rng++; + port->icount.rng++; if (diff_status & FTDI_RS0_RLSD) - priv->icount.dcd++; + port->icount.dcd++; - wake_up_interruptible_all(&priv->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); priv->prev_status = status; } @@ -1999,18 +1961,18 @@ static int ftdi_process_packet(struct usb_serial_port *port, * over framing errors */ if (packet[1] & FTDI_RS_BI) { flag = TTY_BREAK; - priv->icount.brk++; + port->icount.brk++; usb_serial_handle_break(port); } else if (packet[1] & FTDI_RS_PE) { flag = TTY_PARITY; - priv->icount.parity++; + port->icount.parity++; } else if (packet[1] & FTDI_RS_FE) { flag = TTY_FRAME; - priv->icount.frame++; + port->icount.frame++; } /* Overrun is special, not associated with a char */ if (packet[1] & FTDI_RS_OE) { - priv->icount.overrun++; + port->icount.overrun++; tty_insert_flip_char(&port->port, 0, TTY_OVERRUN); } } @@ -2024,7 +1986,7 @@ static int ftdi_process_packet(struct usb_serial_port *port, len -= 2; if (!len) return 0; /* status only */ - priv->icount.rx += len; + port->icount.rx += len; ch = packet + 2; if (port->port.console && port->sysrq) { @@ -2388,34 +2350,10 @@ static int ftdi_tiocmset(struct tty_struct *tty, return update_mctrl(port, set, clear); } -static int ftdi_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct ftdi_private *priv = usb_get_serial_port_data(port); - struct async_icount *ic = &priv->icount; - - icount->cts = ic->cts; - icount->dsr = ic->dsr; - icount->rng = ic->rng; - icount->dcd = ic->dcd; - icount->tx = ic->tx; - icount->rx = ic->rx; - icount->frame = ic->frame; - icount->parity = ic->parity; - icount->overrun = ic->overrun; - icount->brk = ic->brk; - icount->buf_overrun = ic->buf_overrun; - return 0; -} - static int ftdi_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct usb_serial_port *port = tty->driver_data; - struct ftdi_private *priv = usb_get_serial_port_data(port); - struct async_icount cnow; - struct async_icount cprev; dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd); @@ -2429,33 +2367,6 @@ static int ftdi_ioctl(struct tty_struct *tty, case TIOCSSERIAL: /* sets serial port data */ return set_serial_info(tty, port, (struct serial_struct __user *) arg); - - /* - * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change - * - mask passed in arg for lines of interest - * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) - * Caller should use TIOCGICOUNT to see which one it was. - * - * This code is borrowed from linux/drivers/char/serial.c - */ - case TIOCMIWAIT: - cprev = priv->icount; - while (!priv->dev_gone) { - interruptible_sleep_on(&priv->delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - cnow = priv->icount; - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { - return 0; - } - cprev = cnow; - } - return -EIO; - break; case TIOCSERGETLSR: return get_lsr_info(port, (struct serial_struct __user *)arg); break; diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 9d359e189a64..e79861eeed4c 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -584,6 +584,13 @@ #define CONTEC_COM1USBH_PID 0x8311 /* COM-1(USB)H */ /* + * Mitsubishi Electric Corp. (http://www.meau.com) + * Submitted by Konstantin Holoborodko + */ +#define MITSUBISHI_VID 0x06D3 +#define MITSUBISHI_FXUSB_PID 0x0284 /* USB/RS422 converters: FX-USB-AW/-BD */ + +/* * Definitions for B&B Electronics products. */ #define BANDB_VID 0x0856 /* B&B Electronics Vendor ID */ diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 1a07b12ef341..b110c573ea85 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -946,20 +946,13 @@ static int garmin_open(struct tty_struct *tty, struct usb_serial_port *port) static void garmin_close(struct usb_serial_port *port) { - struct usb_serial *serial = port->serial; struct garmin_data *garmin_data_p = usb_get_serial_port_data(port); dev_dbg(&port->dev, "%s - port %d - mode=%d state=%d flags=0x%X\n", __func__, port->number, garmin_data_p->mode, garmin_data_p->state, garmin_data_p->flags); - if (!serial) - return; - - mutex_lock(&port->serial->disc_mutex); - - if (!port->serial->disconnected) - garmin_clear(garmin_data_p); + garmin_clear(garmin_data_p); /* shutdown our urbs */ usb_kill_urb(port->read_urb); @@ -968,8 +961,6 @@ static void garmin_close(struct usb_serial_port *port) /* keep reset state so we know that we must start a new session */ if (garmin_data_p->state != STATE_RESET) garmin_data_p->state = STATE_DISCONNECTED; - - mutex_unlock(&port->serial->disc_mutex); } @@ -1190,17 +1181,11 @@ static void garmin_read_bulk_callback(struct urb *urb) { unsigned long flags; struct usb_serial_port *port = urb->context; - struct usb_serial *serial = port->serial; struct garmin_data *garmin_data_p = usb_get_serial_port_data(port); unsigned char *data = urb->transfer_buffer; int status = urb->status; int retval; - if (!serial) { - dev_dbg(&urb->dev->dev, "%s - bad serial pointer, exiting\n", __func__); - return; - } - if (status) { dev_dbg(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status); diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 4c5c23f1cae5..297665fdd16d 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -1,7 +1,7 @@ /* * USB Serial Converter Generic functions * - * Copyright (C) 2010 - 2011 Johan Hovold (jhovold@gmail.com) + * Copyright (C) 2010 - 2013 Johan Hovold (jhovold@gmail.com) * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com) * * This program is free software; you can redistribute it and/or @@ -45,8 +45,6 @@ struct usb_serial_driver usb_serial_generic_device = { }, .id_table = generic_device_ids, .num_ports = 1, - .disconnect = usb_serial_generic_disconnect, - .release = usb_serial_generic_release, .throttle = usb_serial_generic_throttle, .unthrottle = usb_serial_generic_unthrottle, .resume = usb_serial_generic_resume, @@ -102,32 +100,23 @@ int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port } EXPORT_SYMBOL_GPL(usb_serial_generic_open); -static void generic_cleanup(struct usb_serial_port *port) +void usb_serial_generic_close(struct usb_serial_port *port) { - struct usb_serial *serial = port->serial; unsigned long flags; int i; - if (serial->dev) { - /* shutdown any bulk transfers that might be going on */ - if (port->bulk_out_size) { - for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) - usb_kill_urb(port->write_urbs[i]); + if (port->bulk_out_size) { + for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) + usb_kill_urb(port->write_urbs[i]); - spin_lock_irqsave(&port->lock, flags); - kfifo_reset_out(&port->write_fifo); - spin_unlock_irqrestore(&port->lock, flags); - } - if (port->bulk_in_size) { - for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) - usb_kill_urb(port->read_urbs[i]); - } + spin_lock_irqsave(&port->lock, flags); + kfifo_reset_out(&port->write_fifo); + spin_unlock_irqrestore(&port->lock, flags); + } + if (port->bulk_in_size) { + for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) + usb_kill_urb(port->read_urbs[i]); } -} - -void usb_serial_generic_close(struct usb_serial_port *port) -{ - generic_cleanup(port); } EXPORT_SYMBOL_GPL(usb_serial_generic_close); @@ -272,8 +261,7 @@ static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port, if (!test_and_clear_bit(index, &port->read_urbs_free)) return 0; - dev_dbg(&port->dev, "%s - port %d, urb %d\n", __func__, - port->number, index); + dev_dbg(&port->dev, "%s - urb %d\n", __func__, index); res = usb_submit_urb(port->read_urbs[index], mem_flags); if (res) { @@ -347,8 +335,8 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb) } set_bit(i, &port->read_urbs_free); - dev_dbg(&port->dev, "%s - port %d, urb %d, len %d\n", - __func__, port->number, i, urb->actual_length); + dev_dbg(&port->dev, "%s - urb %d, len %d\n", __func__, i, + urb->actual_length); if (urb->status) { dev_dbg(&port->dev, "%s - non-zero urb status: %d\n", @@ -430,6 +418,91 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty) } EXPORT_SYMBOL_GPL(usb_serial_generic_unthrottle); +static bool usb_serial_generic_msr_changed(struct tty_struct *tty, + unsigned long arg, struct async_icount *cprev) +{ + struct usb_serial_port *port = tty->driver_data; + struct async_icount cnow; + unsigned long flags; + bool ret; + + /* + * Use tty-port initialised flag to detect all hangups including the + * one generated at USB-device disconnect. + * + * FIXME: Remove hupping check once tty_port_hangup calls shutdown + * (which clears the initialised flag) before wake up. + */ + if (test_bit(TTY_HUPPING, &tty->flags)) + return true; + if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) + return true; + + spin_lock_irqsave(&port->lock, flags); + cnow = port->icount; /* atomic copy*/ + spin_unlock_irqrestore(&port->lock, flags); + + ret = ((arg & TIOCM_RNG) && (cnow.rng != cprev->rng)) || + ((arg & TIOCM_DSR) && (cnow.dsr != cprev->dsr)) || + ((arg & TIOCM_CD) && (cnow.dcd != cprev->dcd)) || + ((arg & TIOCM_CTS) && (cnow.cts != cprev->cts)); + + *cprev = cnow; + + return ret; +} + +int usb_serial_generic_tiocmiwait(struct tty_struct *tty, unsigned long arg) +{ + struct usb_serial_port *port = tty->driver_data; + struct async_icount cnow; + unsigned long flags; + int ret; + + spin_lock_irqsave(&port->lock, flags); + cnow = port->icount; /* atomic copy */ + spin_unlock_irqrestore(&port->lock, flags); + + ret = wait_event_interruptible(port->port.delta_msr_wait, + usb_serial_generic_msr_changed(tty, arg, &cnow)); + if (!ret) { + if (test_bit(TTY_HUPPING, &tty->flags)) + ret = -EIO; + if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) + ret = -EIO; + } + + return ret; +} +EXPORT_SYMBOL_GPL(usb_serial_generic_tiocmiwait); + +int usb_serial_generic_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + struct usb_serial_port *port = tty->driver_data; + struct async_icount cnow; + unsigned long flags; + + spin_lock_irqsave(&port->lock, flags); + cnow = port->icount; /* atomic copy */ + spin_unlock_irqrestore(&port->lock, flags); + + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + icount->tx = cnow.tx; + icount->rx = cnow.rx; + icount->frame = cnow.frame; + icount->parity = cnow.parity; + icount->overrun = cnow.overrun; + icount->brk = cnow.brk; + icount->buf_overrun = cnow.buf_overrun; + + return 0; +} +EXPORT_SYMBOL_GPL(usb_serial_generic_get_icount); + #ifdef CONFIG_MAGIC_SYSRQ int usb_serial_handle_sysrq_char(struct usb_serial_port *port, unsigned int ch) { @@ -473,8 +546,7 @@ void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port, { struct tty_port *port = &usb_port->port; - dev_dbg(&usb_port->dev, "%s - port %d, status %d\n", __func__, - usb_port->number, status); + dev_dbg(&usb_port->dev, "%s - status %d\n", __func__, status); if (status) wake_up_interruptible(&port->open_wait); @@ -510,17 +582,3 @@ int usb_serial_generic_resume(struct usb_serial *serial) return c ? -EIO : 0; } EXPORT_SYMBOL_GPL(usb_serial_generic_resume); - -void usb_serial_generic_disconnect(struct usb_serial *serial) -{ - int i; - - /* stop reads and writes on all ports */ - for (i = 0; i < serial->num_ports; ++i) - generic_cleanup(serial->port[i]); -} -EXPORT_SYMBOL_GPL(usb_serial_generic_disconnect); - -void usb_serial_generic_release(struct usb_serial *serial) -{ -} diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index b00e5cbf741f..ff9a6ef8477f 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -110,9 +110,7 @@ struct edgeport_port { wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ wait_queue_head_t wait_open; /* for handling sleeping while waiting for open to finish */ wait_queue_head_t wait_command; /* for handling sleeping while waiting for command to finish */ - wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */ - struct async_icount icount; struct usb_serial_port *port; /* loop back to the owner of this object */ }; @@ -216,8 +214,6 @@ static void edge_break(struct tty_struct *tty, int break_state); static int edge_tiocmget(struct tty_struct *tty); static int edge_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); -static int edge_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount); static int edge_startup(struct usb_serial *serial); static void edge_disconnect(struct usb_serial *serial); static void edge_release(struct usb_serial *serial); @@ -884,12 +880,8 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) /* initialize our wait queues */ init_waitqueue_head(&edge_port->wait_open); init_waitqueue_head(&edge_port->wait_chase); - init_waitqueue_head(&edge_port->delta_msr_wait); init_waitqueue_head(&edge_port->wait_command); - /* initialize our icount structure */ - memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount)); - /* initialize our port settings */ edge_port->txCredits = 0; /* Can't send any data yet */ /* Must always set this bit to enable ints! */ @@ -1316,7 +1308,7 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, /* decrement the number of credits we have by the number we just sent */ edge_port->txCredits -= count; - edge_port->icount.tx += count; + edge_port->port->icount.tx += count; status = usb_submit_urb(urb, GFP_ATOMIC); if (status) { @@ -1328,7 +1320,7 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, /* revert the credits as something bad happened. */ edge_port->txCredits += count; - edge_port->icount.tx -= count; + edge_port->port->icount.tx -= count; } dev_dbg(dev, "%s wrote %d byte(s) TxCredit %d, Fifo %d\n", __func__, count, edge_port->txCredits, fifo->count); @@ -1590,31 +1582,6 @@ static int edge_tiocmget(struct tty_struct *tty) return result; } -static int edge_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct async_icount cnow; - cnow = edge_port->icount; - - icount->cts = cnow.cts; - icount->dsr = cnow.dsr; - icount->rng = cnow.rng; - icount->dcd = cnow.dcd; - icount->rx = cnow.rx; - icount->tx = cnow.tx; - icount->frame = cnow.frame; - icount->overrun = cnow.overrun; - icount->parity = cnow.parity; - icount->brk = cnow.brk; - icount->buf_overrun = cnow.buf_overrun; - - dev_dbg(&port->dev, "%s (%d) TIOCGICOUNT RX=%d, TX=%d\n", __func__, - port->number, icount->rx, icount->tx); - return 0; -} - static int get_serial_info(struct edgeport_port *edge_port, struct serial_struct __user *retinfo) { @@ -1651,8 +1618,6 @@ static int edge_ioctl(struct tty_struct *tty, struct usb_serial_port *port = tty->driver_data; DEFINE_WAIT(wait); struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct async_icount cnow; - struct async_icount cprev; dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd); @@ -1664,33 +1629,6 @@ static int edge_ioctl(struct tty_struct *tty, case TIOCGSERIAL: dev_dbg(&port->dev, "%s (%d) TIOCGSERIAL\n", __func__, port->number); return get_serial_info(edge_port, (struct serial_struct __user *) arg); - - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, port->number); - cprev = edge_port->icount; - while (1) { - prepare_to_wait(&edge_port->delta_msr_wait, - &wait, TASK_INTERRUPTIBLE); - schedule(); - finish_wait(&edge_port->delta_msr_wait, &wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - cnow = edge_port->icount; - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { - return 0; - } - cprev = cnow; - } - /* NOTREACHED */ - break; - } return -ENOIOCTLCMD; } @@ -1864,7 +1802,7 @@ static void process_rcvd_data(struct edgeport_serial *edge_serial, edge_serial->rxPort); edge_tty_recv(edge_port->port, buffer, rxLen); - edge_port->icount.rx += rxLen; + edge_port->port->icount.rx += rxLen; } buffer += rxLen; } @@ -2040,7 +1978,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr) if (newMsr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { - icount = &edge_port->icount; + icount = &edge_port->port->icount; /* update input line counters */ if (newMsr & EDGEPORT_MSR_DELTA_CTS) @@ -2051,7 +1989,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr) icount->dcd++; if (newMsr & EDGEPORT_MSR_DELTA_RI) icount->rng++; - wake_up_interruptible(&edge_port->delta_msr_wait); + wake_up_interruptible(&edge_port->port->port.delta_msr_wait); } /* Save the new modem status */ @@ -2086,7 +2024,7 @@ static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData, edge_tty_recv(edge_port->port, &data, 1); /* update input line counters */ - icount = &edge_port->icount; + icount = &edge_port->port->icount; if (newLsr & LSR_BREAK) icount->brk++; if (newLsr & LSR_OVER_ERR) diff --git a/drivers/usb/serial/io_tables.h b/drivers/usb/serial/io_tables.h index 1511dd0ad324..ae5fac5656c9 100644 --- a/drivers/usb/serial/io_tables.h +++ b/drivers/usb/serial/io_tables.h @@ -116,7 +116,8 @@ static struct usb_serial_driver edgeport_2port_device = { .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, .tiocmset = edge_tiocmset, - .get_icount = edge_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .write = edge_write, .write_room = edge_write_room, .chars_in_buffer = edge_chars_in_buffer, @@ -147,7 +148,8 @@ static struct usb_serial_driver edgeport_4port_device = { .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, .tiocmset = edge_tiocmset, - .get_icount = edge_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .write = edge_write, .write_room = edge_write_room, .chars_in_buffer = edge_chars_in_buffer, @@ -178,7 +180,8 @@ static struct usb_serial_driver edgeport_8port_device = { .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, .tiocmset = edge_tiocmset, - .get_icount = edge_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .write = edge_write, .write_room = edge_write_room, .chars_in_buffer = edge_chars_in_buffer, @@ -209,7 +212,8 @@ static struct usb_serial_driver epic_device = { .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, .tiocmset = edge_tiocmset, - .get_icount = edge_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .write = edge_write, .write_room = edge_write_room, .chars_in_buffer = edge_chars_in_buffer, diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index c23776679f70..0ccc4225d593 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -86,10 +86,7 @@ struct edgeport_port { int baud_rate; int close_pending; int lsr_event; - struct async_icount icount; - wait_queue_head_t delta_msr_wait; /* for handling sleeping while - waiting for msr change to - happen */ + struct edgeport_serial *edge_serial; struct usb_serial_port *port; __u8 bUartMode; /* Port type, 0: RS232, etc. */ @@ -1448,7 +1445,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { - icount = &edge_port->icount; + icount = &edge_port->port->icount; /* update input line counters */ if (msr & EDGEPORT_MSR_DELTA_CTS) @@ -1459,7 +1456,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) icount->dcd++; if (msr & EDGEPORT_MSR_DELTA_RI) icount->rng++; - wake_up_interruptible(&edge_port->delta_msr_wait); + wake_up_interruptible(&edge_port->port->port.delta_msr_wait); } /* Save the new modem status */ @@ -1501,7 +1498,7 @@ static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, edge_tty_recv(edge_port->port, &data, 1); /* update input line counters */ - icount = &edge_port->icount; + icount = &edge_port->port->icount; if (new_lsr & LSR_BREAK) icount->brk++; if (new_lsr & LSR_OVER_ERR) @@ -1660,7 +1657,7 @@ static void edge_bulk_in_callback(struct urb *urb) else edge_tty_recv(edge_port->port, data, urb->actual_length); - edge_port->icount.rx += urb->actual_length; + edge_port->port->icount.rx += urb->actual_length; } exit: @@ -1753,9 +1750,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) dev = port->serial->dev; - memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount)); - init_waitqueue_head(&edge_port->delta_msr_wait); - /* turn off loopback */ status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); if (status) { @@ -1913,21 +1907,10 @@ static void edge_close(struct usb_serial_port *port) kfifo_reset_out(&edge_port->write_fifo); spin_unlock_irqrestore(&edge_port->ep_lock, flags); - /* assuming we can still talk to the device, - * send a close port command to it */ dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); port_number = port->number - port->serial->minor; - - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) { - send_cmd(serial->dev, - UMPC_CLOSE_PORT, - (__u8)(UMPM_UART1_PORT + port_number), - 0, - NULL, - 0); - } - mutex_unlock(&serial->disc_mutex); + send_cmd(serial->dev, UMPC_CLOSE_PORT, + (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); mutex_lock(&edge_serial->es_lock); --edge_port->edge_serial->num_ports_open; @@ -2003,7 +1986,7 @@ static void edge_send(struct tty_struct *tty) edge_port->ep_write_urb_in_use = 0; /* TODO: reschedule edge_send */ } else - edge_port->icount.tx += count; + edge_port->port->icount.tx += count; /* wakeup any process waiting for writes to complete */ /* there is now more room in the buffer for new writes */ @@ -2364,27 +2347,6 @@ static int edge_tiocmget(struct tty_struct *tty) return result; } -static int edge_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct async_icount *ic = &edge_port->icount; - - icount->cts = ic->cts; - icount->dsr = ic->dsr; - icount->rng = ic->rng; - icount->dcd = ic->dcd; - icount->tx = ic->tx; - icount->rx = ic->rx; - icount->frame = ic->frame; - icount->parity = ic->parity; - icount->overrun = ic->overrun; - icount->brk = ic->brk; - icount->buf_overrun = ic->buf_overrun; - return 0; -} - static int get_serial_info(struct edgeport_port *edge_port, struct serial_struct __user *retinfo) { @@ -2420,8 +2382,6 @@ static int edge_ioctl(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct async_icount cnow; - struct async_icount cprev; dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd); @@ -2430,28 +2390,6 @@ static int edge_ioctl(struct tty_struct *tty, dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); return get_serial_info(edge_port, (struct serial_struct __user *) arg); - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__); - cprev = edge_port->icount; - while (1) { - interruptible_sleep_on(&edge_port->delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - cnow = edge_port->icount; - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { - return 0; - } - cprev = cnow; - } - /* not reached */ - break; } return -ENOIOCTLCMD; } @@ -2546,7 +2484,6 @@ static int edge_port_remove(struct usb_serial_port *port) struct edgeport_port *edge_port; edge_port = usb_get_serial_port_data(port); - edge_remove_sysfs_attrs(port); kfifo_free(&edge_port->write_fifo); kfree(edge_port); @@ -2618,7 +2555,8 @@ static struct usb_serial_driver edgeport_1port_device = { .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, .tiocmset = edge_tiocmset, - .get_icount = edge_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .write = edge_write, .write_room = edge_write_room, .chars_in_buffer = edge_chars_in_buffer, @@ -2649,6 +2587,8 @@ static struct usb_serial_driver edgeport_2port_device = { .set_termios = edge_set_termios, .tiocmget = edge_tiocmget, .tiocmset = edge_tiocmset, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .write = edge_write, .write_room = edge_write_room, .chars_in_buffer = edge_chars_in_buffer, diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index ff77027160aa..9d74c278b7b5 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -55,7 +55,6 @@ static void read_rxcmd_callback(struct urb *urb); struct iuu_private { spinlock_t lock; /* store irq state */ - wait_queue_head_t delta_msr_wait; u8 line_status; int tiostatus; /* store IUART SIGNAL for tiocmget call */ u8 reset; /* if 1 reset is needed */ @@ -94,7 +93,6 @@ static int iuu_port_probe(struct usb_serial_port *port) priv->vcc = vcc_default; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); @@ -944,22 +942,13 @@ static void iuu_set_termios(struct tty_struct *tty, static void iuu_close(struct usb_serial_port *port) { /* iuu_led (port,255,0,0,0); */ - struct usb_serial *serial; - - serial = port->serial; - if (!serial) - return; iuu_uart_off(port); - if (serial->dev) { - /* free writebuf */ - /* shutdown our urbs */ - dev_dbg(&port->dev, "%s - shutting down urbs\n", __func__); - usb_kill_urb(port->write_urb); - usb_kill_urb(port->read_urb); - usb_kill_urb(port->interrupt_in_urb); - iuu_led(port, 0, 0, 0xF000, 0xFF); - } + + usb_kill_urb(port->write_urb); + usb_kill_urb(port->read_urb); + + iuu_led(port, 0, 0, 0xF000, 0xFF); } static void iuu_init_termios(struct tty_struct *tty) diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 1fd1935c8316..025310bc358a 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -726,45 +726,45 @@ static void usa49wg_indat_callback(struct urb *urb) i = 0; len = 0; - if (urb->actual_length) { - while (i < urb->actual_length) { + while (i < urb->actual_length) { - /* Check port number from message*/ - if (data[i] >= serial->num_ports) { - dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", - __func__, data[i]); - return; - } - port = serial->port[data[i++]]; - len = data[i++]; + /* Check port number from message */ + if (data[i] >= serial->num_ports) { + dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", + __func__, data[i]); + return; + } + port = serial->port[data[i++]]; + len = data[i++]; - /* 0x80 bit is error flag */ - if ((data[i] & 0x80) == 0) { - /* no error on any byte */ - i++; - for (x = 1; x < len ; ++x) - tty_insert_flip_char(&port->port, - data[i++], 0); - } else { - /* - * some bytes had errors, every byte has status - */ - for (x = 0; x + 1 < len; x += 2) { - int stat = data[i], flag = 0; - if (stat & RXERROR_OVERRUN) - flag |= TTY_OVERRUN; - if (stat & RXERROR_FRAMING) - flag |= TTY_FRAME; - if (stat & RXERROR_PARITY) - flag |= TTY_PARITY; - /* XXX should handle break (0x10) */ - tty_insert_flip_char(&port->port, - data[i+1], flag); - i += 2; - } + /* 0x80 bit is error flag */ + if ((data[i] & 0x80) == 0) { + /* no error on any byte */ + i++; + for (x = 1; x < len && i < urb->actual_length; ++x) + tty_insert_flip_char(&port->port, + data[i++], 0); + } else { + /* + * some bytes had errors, every byte has status + */ + for (x = 0; x + 1 < len && + i + 1 < urb->actual_length; x += 2) { + int stat = data[i], flag = 0; + + if (stat & RXERROR_OVERRUN) + flag |= TTY_OVERRUN; + if (stat & RXERROR_FRAMING) + flag |= TTY_FRAME; + if (stat & RXERROR_PARITY) + flag |= TTY_PARITY; + /* XXX should handle break (0x10) */ + tty_insert_flip_char(&port->port, data[i+1], + flag); + i += 2; } - tty_flip_buffer_push(&port->port); } + tty_flip_buffer_push(&port->port); } /* Resubmit urb so we continue receiving */ @@ -1115,7 +1115,6 @@ static void keyspan_dtr_rts(struct usb_serial_port *port, int on) static void keyspan_close(struct usb_serial_port *port) { int i; - struct usb_serial *serial = port->serial; struct keyspan_port_private *p_priv; p_priv = usb_get_serial_port_data(port); @@ -1123,28 +1122,17 @@ static void keyspan_close(struct usb_serial_port *port) p_priv->rts_state = 0; p_priv->dtr_state = 0; - if (serial->dev) { - keyspan_send_setup(port, 2); - /* pilot-xfer seems to work best with this delay */ - mdelay(100); - /* keyspan_set_termios(port, NULL); */ - } - - /*while (p_priv->outcont_urb->status == -EINPROGRESS) { - dev_dbg(&port->dev, "%s - urb in progress\n", __func__); - }*/ + keyspan_send_setup(port, 2); + /* pilot-xfer seems to work best with this delay */ + mdelay(100); p_priv->out_flip = 0; p_priv->in_flip = 0; - if (serial->dev) { - /* Stop reading/writing urbs */ - stop_urb(p_priv->inack_urb); - /* stop_urb(p_priv->outcont_urb); */ - for (i = 0; i < 2; i++) { - stop_urb(p_priv->in_urbs[i]); - stop_urb(p_priv->out_urbs[i]); - } + stop_urb(p_priv->inack_urb); + for (i = 0; i < 2; i++) { + stop_urb(p_priv->in_urbs[i]); + stop_urb(p_priv->out_urbs[i]); } } diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 3b17d5d13dc8..da3b29eb605c 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -595,12 +595,10 @@ static void keyspan_pda_dtr_rts(struct usb_serial_port *port, int on) { struct usb_serial *serial = port->serial; - if (serial->dev) { - if (on) - keyspan_pda_set_modem_info(serial, (1<<7) | (1<< 2)); - else - keyspan_pda_set_modem_info(serial, 0); - } + if (on) + keyspan_pda_set_modem_info(serial, (1 << 7) | (1 << 2)); + else + keyspan_pda_set_modem_info(serial, 0); } @@ -651,13 +649,8 @@ error: } static void keyspan_pda_close(struct usb_serial_port *port) { - struct usb_serial *serial = port->serial; - - if (serial->dev) { - /* shutdown our bulk reads and writes */ - usb_kill_urb(port->write_urb); - usb_kill_urb(port->interrupt_in_urb); - } + usb_kill_urb(port->write_urb); + usb_kill_urb(port->interrupt_in_urb); } diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 769d910ae0a5..1b4054fe52a5 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -341,28 +341,20 @@ static void klsi_105_close(struct usb_serial_port *port) { int rc; - mutex_lock(&port->serial->disc_mutex); - if (!port->serial->disconnected) { - /* send READ_OFF */ - rc = usb_control_msg(port->serial->dev, - usb_sndctrlpipe(port->serial->dev, 0), - KL5KUSB105A_SIO_CONFIGURE, - USB_TYPE_VENDOR | USB_DIR_OUT, - KL5KUSB105A_SIO_CONFIGURE_READ_OFF, - 0, /* index */ - NULL, 0, - KLSI_TIMEOUT); - if (rc < 0) - dev_err(&port->dev, - "Disabling read failed (error = %d)\n", rc); - } - mutex_unlock(&port->serial->disc_mutex); + /* send READ_OFF */ + rc = usb_control_msg(port->serial->dev, + usb_sndctrlpipe(port->serial->dev, 0), + KL5KUSB105A_SIO_CONFIGURE, + USB_TYPE_VENDOR | USB_DIR_OUT, + KL5KUSB105A_SIO_CONFIGURE_READ_OFF, + 0, /* index */ + NULL, 0, + KLSI_TIMEOUT); + if (rc < 0) + dev_err(&port->dev, "failed to disable read: %d\n", rc); /* shutdown our bulk reads and writes */ usb_serial_generic_close(port); - - /* wgg - do I need this? I think so. */ - usb_kill_urb(port->interrupt_in_urb); } /* We need to write a complete 64-byte data block and encode the diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index a64d420f687b..3353c9ed7721 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -35,7 +35,6 @@ #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/serial.h> -#include <linux/ioctl.h> #include "mct_u232.h" #define DRIVER_AUTHOR "Wolfgang Grandegger <wolfgang@ces.ch>" @@ -57,10 +56,6 @@ static void mct_u232_break_ctl(struct tty_struct *tty, int break_state); static int mct_u232_tiocmget(struct tty_struct *tty); static int mct_u232_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); -static int mct_u232_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg); -static int mct_u232_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount); static void mct_u232_throttle(struct tty_struct *tty); static void mct_u232_unthrottle(struct tty_struct *tty); @@ -95,11 +90,11 @@ static struct usb_serial_driver mct_u232_device = { .break_ctl = mct_u232_break_ctl, .tiocmget = mct_u232_tiocmget, .tiocmset = mct_u232_tiocmset, + .tiocmiwait = usb_serial_generic_tiocmiwait, .attach = mct_u232_startup, .port_probe = mct_u232_port_probe, .port_remove = mct_u232_port_remove, - .ioctl = mct_u232_ioctl, - .get_icount = mct_u232_get_icount, + .get_icount = usb_serial_generic_get_icount, }; static struct usb_serial_driver * const serial_drivers[] = { @@ -113,9 +108,6 @@ struct mct_u232_private { unsigned char last_lsr; /* Line Status Register */ unsigned char last_msr; /* Modem Status Register */ unsigned int rx_flags; /* Throttling flags */ - struct async_icount icount; - wait_queue_head_t msr_wait; /* for handling sleeping while waiting - for msr change to happen */ }; #define THROTTLED 0x01 @@ -409,7 +401,6 @@ static int mct_u232_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->msr_wait); usb_set_serial_port_data(port, priv); @@ -573,7 +564,7 @@ static void mct_u232_read_int_callback(struct urb *urb) /* Record Control Line states */ mct_u232_msr_to_state(port, &priv->control_state, priv->last_msr); - mct_u232_msr_to_icount(&priv->icount, priv->last_msr); + mct_u232_msr_to_icount(&port->icount, priv->last_msr); #if 0 /* Not yet handled. See belkin_sa.c for further information */ @@ -601,7 +592,7 @@ static void mct_u232_read_int_callback(struct urb *urb) tty_kref_put(tty); } #endif - wake_up_interruptible(&priv->msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); spin_unlock_irqrestore(&priv->lock, flags); exit: retval = usb_submit_urb(urb, GFP_ATOMIC); @@ -789,82 +780,6 @@ static void mct_u232_unthrottle(struct tty_struct *tty) } } -static int mct_u232_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg) -{ - DEFINE_WAIT(wait); - struct usb_serial_port *port = tty->driver_data; - struct mct_u232_private *mct_u232_port = usb_get_serial_port_data(port); - struct async_icount cnow, cprev; - unsigned long flags; - - dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd); - - switch (cmd) { - - case TIOCMIWAIT: - - dev_dbg(&port->dev, "%s TIOCMIWAIT", __func__); - - spin_lock_irqsave(&mct_u232_port->lock, flags); - cprev = mct_u232_port->icount; - spin_unlock_irqrestore(&mct_u232_port->lock, flags); - for ( ; ; ) { - prepare_to_wait(&mct_u232_port->msr_wait, - &wait, TASK_INTERRUPTIBLE); - schedule(); - finish_wait(&mct_u232_port->msr_wait, &wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - spin_lock_irqsave(&mct_u232_port->lock, flags); - cnow = mct_u232_port->icount; - spin_unlock_irqrestore(&mct_u232_port->lock, flags); - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { - return 0; - } - cprev = cnow; - } - - } - return -ENOIOCTLCMD; -} - -static int mct_u232_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct mct_u232_private *mct_u232_port = usb_get_serial_port_data(port); - struct async_icount *ic = &mct_u232_port->icount; - unsigned long flags; - - spin_lock_irqsave(&mct_u232_port->lock, flags); - - icount->cts = ic->cts; - icount->dsr = ic->dsr; - icount->rng = ic->rng; - icount->dcd = ic->dcd; - icount->rx = ic->rx; - icount->tx = ic->tx; - icount->frame = ic->frame; - icount->overrun = ic->overrun; - icount->parity = ic->parity; - icount->brk = ic->brk; - icount->buf_overrun = ic->buf_overrun; - - spin_unlock_irqrestore(&mct_u232_port->lock, flags); - - dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n", - __func__, icount->rx, icount->tx); - return 0; -} - module_usb_serial_driver(serial_drivers, id_table); MODULE_AUTHOR(DRIVER_AUTHOR); diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index bf3c7a23553e..47e247759eb0 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -177,10 +177,7 @@ static void metrousb_cleanup(struct usb_serial_port *port) usb_unlink_urb(port->interrupt_in_urb); usb_kill_urb(port->interrupt_in_urb); - mutex_lock(&port->serial->disc_mutex); - if (!port->serial->disconnected) - metrousb_send_unidirectional_cmd(UNI_CMD_CLOSE, port); - mutex_unlock(&port->serial->disc_mutex); + metrousb_send_unidirectional_cmd(UNI_CMD_CLOSE, port); } static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port) diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index e0ebec3b5d6a..fc506bb71315 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -62,7 +62,6 @@ struct moschip_port { __u8 shadowMCR; /* last MCR value received */ __u8 shadowMSR; /* last MSR value received */ char open; - struct async_icount icount; struct usb_serial_port *port; /* loop back to the owner */ struct urb *write_urb_pool[NUM_URBS]; }; @@ -1075,9 +1074,6 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port) dev_err(&port->dev, "%s - Error %d submitting read urb\n", __func__, response); - /* initialize our icount structure */ - memset(&(mos7720_port->icount), 0x00, sizeof(mos7720_port->icount)); - /* initialize our port settings */ mos7720_port->shadowMCR = UART_MCR_OUT2; /* Must set to enable ints! */ @@ -1144,16 +1140,9 @@ static void mos7720_close(struct usb_serial_port *port) usb_kill_urb(port->write_urb); usb_kill_urb(port->read_urb); - mutex_lock(&serial->disc_mutex); - /* these commands must not be issued if the device has - * been disconnected */ - if (!serial->disconnected) { - write_mos_reg(serial, port->number - port->serial->minor, - MCR, 0x00); - write_mos_reg(serial, port->number - port->serial->minor, - IER, 0x00); - } - mutex_unlock(&serial->disc_mutex); + write_mos_reg(serial, port->number - port->serial->minor, MCR, 0x00); + write_mos_reg(serial, port->number - port->serial->minor, IER, 0x00); + mos7720_port->open = 0; } @@ -1803,33 +1792,6 @@ static int mos7720_tiocmset(struct tty_struct *tty, return 0; } -static int mos7720_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct moschip_port *mos7720_port; - struct async_icount cnow; - - mos7720_port = usb_get_serial_port_data(port); - cnow = mos7720_port->icount; - - icount->cts = cnow.cts; - icount->dsr = cnow.dsr; - icount->rng = cnow.rng; - icount->dcd = cnow.dcd; - icount->rx = cnow.rx; - icount->tx = cnow.tx; - icount->frame = cnow.frame; - icount->overrun = cnow.overrun; - icount->parity = cnow.parity; - icount->brk = cnow.brk; - icount->buf_overrun = cnow.buf_overrun; - - dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n", __func__, - icount->rx, icount->tx); - return 0; -} - static int set_modem_info(struct moschip_port *mos7720_port, unsigned int cmd, unsigned int __user *value) { @@ -1905,8 +1867,6 @@ static int mos7720_ioctl(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; struct moschip_port *mos7720_port; - struct async_icount cnow; - struct async_icount cprev; mos7720_port = usb_get_serial_port_data(port); if (mos7720_port == NULL) @@ -1931,27 +1891,6 @@ static int mos7720_ioctl(struct tty_struct *tty, dev_dbg(&port->dev, "%s TIOCGSERIAL\n", __func__); return get_serial_info(mos7720_port, (struct serial_struct __user *)arg); - - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__); - cprev = mos7720_port->icount; - while (1) { - if (signal_pending(current)) - return -ERESTARTSYS; - cnow = mos7720_port->icount; - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { - return 0; - } - cprev = cnow; - } - /* NOTREACHED */ - break; } return -ENOIOCTLCMD; @@ -2107,7 +2046,6 @@ static struct usb_serial_driver moschip7720_2port_driver = { .ioctl = mos7720_ioctl, .tiocmget = mos7720_tiocmget, .tiocmset = mos7720_tiocmset, - .get_icount = mos7720_get_icount, .set_termios = mos7720_set_termios, .write = mos7720_write, .write_room = mos7720_write_room, diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 809fb329eca5..f0b4e5c01e13 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -219,9 +219,6 @@ struct moschip_port { char open; char open_ports; wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ - wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */ - int delta_msr_cond; - struct async_icount icount; struct usb_serial_port *port; /* loop back to the owner of this object */ /* Offsets */ @@ -400,29 +397,22 @@ static void mos7840_handle_new_msr(struct moschip_port *port, __u8 new_msr) struct moschip_port *mos7840_port; struct async_icount *icount; mos7840_port = port; - icount = &mos7840_port->icount; if (new_msr & (MOS_MSR_DELTA_CTS | MOS_MSR_DELTA_DSR | MOS_MSR_DELTA_RI | MOS_MSR_DELTA_CD)) { - icount = &mos7840_port->icount; + icount = &mos7840_port->port->icount; /* update input line counters */ - if (new_msr & MOS_MSR_DELTA_CTS) { + if (new_msr & MOS_MSR_DELTA_CTS) icount->cts++; - smp_wmb(); - } - if (new_msr & MOS_MSR_DELTA_DSR) { + if (new_msr & MOS_MSR_DELTA_DSR) icount->dsr++; - smp_wmb(); - } - if (new_msr & MOS_MSR_DELTA_CD) { + if (new_msr & MOS_MSR_DELTA_CD) icount->dcd++; - smp_wmb(); - } - if (new_msr & MOS_MSR_DELTA_RI) { + if (new_msr & MOS_MSR_DELTA_RI) icount->rng++; - smp_wmb(); - } + + wake_up_interruptible(&port->port->port.delta_msr_wait); } } @@ -440,23 +430,15 @@ static void mos7840_handle_new_lsr(struct moschip_port *port, __u8 new_lsr) } /* update input line counters */ - icount = &port->icount; - if (new_lsr & SERIAL_LSR_BI) { + icount = &port->port->icount; + if (new_lsr & SERIAL_LSR_BI) icount->brk++; - smp_wmb(); - } - if (new_lsr & SERIAL_LSR_OE) { + if (new_lsr & SERIAL_LSR_OE) icount->overrun++; - smp_wmb(); - } - if (new_lsr & SERIAL_LSR_PE) { + if (new_lsr & SERIAL_LSR_PE) icount->parity++; - smp_wmb(); - } - if (new_lsr & SERIAL_LSR_FE) { + if (new_lsr & SERIAL_LSR_FE) icount->frame++; - smp_wmb(); - } } /************************************************************************/ @@ -775,9 +757,8 @@ static void mos7840_bulk_in_callback(struct urb *urb) struct tty_port *tport = &mos7840_port->port->port; tty_insert_flip_string(tport, data, urb->actual_length); tty_flip_buffer_push(tport); - mos7840_port->icount.rx += urb->actual_length; - smp_wmb(); - dev_dbg(&port->dev, "mos7840_port->icount.rx is %d:\n", mos7840_port->icount.rx); + port->icount.rx += urb->actual_length; + dev_dbg(&port->dev, "icount.rx is %d:\n", port->icount.rx); } if (!mos7840_port->read_urb) { @@ -1127,10 +1108,6 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) /* initialize our wait queues */ init_waitqueue_head(&mos7840_port->wait_chase); - init_waitqueue_head(&mos7840_port->delta_msr_wait); - - /* initialize our icount structure */ - memset(&(mos7840_port->icount), 0x00, sizeof(mos7840_port->icount)); /* initialize our port settings */ /* Must set to enable ints! */ @@ -1138,8 +1115,6 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) /* send a open port command */ mos7840_port->open = 1; /* mos7840_change_port_settings(mos7840_port,old_termios); */ - mos7840_port->icount.tx = 0; - mos7840_port->icount.rx = 0; return 0; } @@ -1222,25 +1197,10 @@ static void mos7840_close(struct usb_serial_port *port) } } - /* While closing port, shutdown all bulk read, write * - * and interrupt read if they exists */ - if (serial->dev) { - if (mos7840_port->write_urb) { - dev_dbg(&port->dev, "%s", "Shutdown bulk write\n"); - usb_kill_urb(mos7840_port->write_urb); - } - if (mos7840_port->read_urb) { - dev_dbg(&port->dev, "%s", "Shutdown bulk read\n"); - usb_kill_urb(mos7840_port->read_urb); - mos7840_port->read_urb_busy = false; - } - if ((&mos7840_port->control_urb)) { - dev_dbg(&port->dev, "%s", "Shutdown control read\n"); - /*/ usb_kill_urb (mos7840_port->control_urb); */ - } - } -/* if(mos7840_port->ctrl_buf != NULL) */ -/* kfree(mos7840_port->ctrl_buf); */ + usb_kill_urb(mos7840_port->write_urb); + usb_kill_urb(mos7840_port->read_urb); + mos7840_port->read_urb_busy = false; + port0->open_ports--; dev_dbg(&port->dev, "%s in close%d:in port%d\n", __func__, port0->open_ports, port->number); if (port0->open_ports == 0) { @@ -1252,8 +1212,7 @@ static void mos7840_close(struct usb_serial_port *port) if (mos7840_port->write_urb) { /* if this urb had a transfer buffer already (old tx) free it */ - if (mos7840_port->write_urb->transfer_buffer != NULL) - kfree(mos7840_port->write_urb->transfer_buffer); + kfree(mos7840_port->write_urb->transfer_buffer); usb_free_urb(mos7840_port->write_urb); } @@ -1330,9 +1289,8 @@ static void mos7840_break(struct tty_struct *tty, int break_state) if (mos7840_port == NULL) return; - if (serial->dev) - /* flush and block until tx is empty */ - mos7840_block_until_chase_response(tty, mos7840_port); + /* flush and block until tx is empty */ + mos7840_block_until_chase_response(tty, mos7840_port); if (break_state == -1) data = mos7840_port->shadowLCR | LCR_SET_BREAK; @@ -1522,9 +1480,8 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, goto exit; } bytes_sent = transfer_size; - mos7840_port->icount.tx += transfer_size; - smp_wmb(); - dev_dbg(&port->dev, "mos7840_port->icount.tx is %d:\n", mos7840_port->icount.tx); + port->icount.tx += transfer_size; + dev_dbg(&port->dev, "icount.tx is %d:\n", port->icount.tx); exit: return bytes_sent; @@ -2017,8 +1974,6 @@ static void mos7840_change_port_settings(struct tty_struct *tty, mos7840_port->read_urb_busy = false; } } - wake_up(&mos7840_port->delta_msr_wait); - mos7840_port->delta_msr_cond = 1; dev_dbg(&port->dev, "%s - mos7840_port->shadowLCR is End %x\n", __func__, mos7840_port->shadowLCR); } @@ -2145,34 +2100,6 @@ static int mos7840_get_serial_info(struct moschip_port *mos7840_port, return 0; } -static int mos7840_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct moschip_port *mos7840_port; - struct async_icount cnow; - - mos7840_port = mos7840_get_port_private(port); - cnow = mos7840_port->icount; - - smp_rmb(); - icount->cts = cnow.cts; - icount->dsr = cnow.dsr; - icount->rng = cnow.rng; - icount->dcd = cnow.dcd; - icount->rx = cnow.rx; - icount->tx = cnow.tx; - icount->frame = cnow.frame; - icount->overrun = cnow.overrun; - icount->parity = cnow.parity; - icount->brk = cnow.brk; - icount->buf_overrun = cnow.buf_overrun; - - dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n", __func__, - icount->rx, icount->tx); - return 0; -} - /***************************************************************************** * SerialIoctl * this function handles any ioctl calls to the driver @@ -2185,9 +2112,6 @@ static int mos7840_ioctl(struct tty_struct *tty, void __user *argp = (void __user *)arg; struct moschip_port *mos7840_port; - struct async_icount cnow; - struct async_icount cprev; - if (mos7840_port_paranoia_check(port, __func__)) return -1; @@ -2212,36 +2136,6 @@ static int mos7840_ioctl(struct tty_struct *tty, case TIOCSSERIAL: dev_dbg(&port->dev, "%s TIOCSSERIAL\n", __func__); break; - - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__); - cprev = mos7840_port->icount; - while (1) { - /* interruptible_sleep_on(&mos7840_port->delta_msr_wait); */ - mos7840_port->delta_msr_cond = 0; - wait_event_interruptible(mos7840_port->delta_msr_wait, - (mos7840_port-> - delta_msr_cond == 1)); - - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - cnow = mos7840_port->icount; - smp_rmb(); - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { - return 0; - } - cprev = cnow; - } - /* NOTREACHED */ - break; - default: break; } @@ -2588,7 +2482,8 @@ static struct usb_serial_driver moschip7840_4port_device = { .break_ctl = mos7840_break, .tiocmget = mos7840_tiocmget, .tiocmset = mos7840_tiocmset, - .get_icount = mos7840_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .port_probe = mos7840_port_probe, .port_remove = mos7840_port_remove, .read_bulk_callback = mos7840_bulk_in_callback, diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index e13e1a4d3e1e..5f4b0cd0f6e9 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -120,7 +120,10 @@ static int send_control_msg(struct usb_serial_port *port, u8 requesttype, 0, 0, buffer, 1, 0); kfree(buffer); - return retval; + if (retval < 0) + return retval; + + return 0; } static int opticon_open(struct tty_struct *tty, struct usb_serial_port *port) @@ -306,7 +309,6 @@ static int opticon_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { struct usb_serial_port *port = tty->driver_data; - struct usb_serial *serial = port->serial; struct opticon_private *priv = usb_get_serial_port_data(port); unsigned long flags; bool rts; @@ -327,15 +329,11 @@ static int opticon_tiocmset(struct tty_struct *tty, if (!changed) return 0; - /* Send the new RTS state to the connected device */ - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) - ret = send_control_msg(port, CONTROL_RTS, !rts); - else - ret = -ENODEV; - mutex_unlock(&serial->disc_mutex); + ret = send_control_msg(port, CONTROL_RTS, !rts); + if (ret) + return usb_translate_errors(ret); - return ret; + return 0; } static int get_serial_info(struct usb_serial_port *port, diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index a958fd41b5b3..7e3e0782e51f 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -124,8 +124,6 @@ static void oti6858_close(struct usb_serial_port *port); static void oti6858_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old); static void oti6858_init_termios(struct tty_struct *tty); -static int oti6858_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg); static void oti6858_read_int_callback(struct urb *urb); static void oti6858_read_bulk_callback(struct urb *urb); static void oti6858_write_bulk_callback(struct urb *urb); @@ -136,6 +134,7 @@ static int oti6858_chars_in_buffer(struct tty_struct *tty); static int oti6858_tiocmget(struct tty_struct *tty); static int oti6858_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); +static int oti6858_tiocmiwait(struct tty_struct *tty, unsigned long arg); static int oti6858_port_probe(struct usb_serial_port *port); static int oti6858_port_remove(struct usb_serial_port *port); @@ -150,11 +149,11 @@ static struct usb_serial_driver oti6858_device = { .open = oti6858_open, .close = oti6858_close, .write = oti6858_write, - .ioctl = oti6858_ioctl, .set_termios = oti6858_set_termios, .init_termios = oti6858_init_termios, .tiocmget = oti6858_tiocmget, .tiocmset = oti6858_tiocmset, + .tiocmiwait = oti6858_tiocmiwait, .read_bulk_callback = oti6858_read_bulk_callback, .read_int_callback = oti6858_read_int_callback, .write_bulk_callback = oti6858_write_bulk_callback, @@ -188,7 +187,6 @@ struct oti6858_private { u8 setup_done; struct delayed_work delayed_setup_work; - wait_queue_head_t intr_wait; struct usb_serial_port *port; /* USB port with which associated */ }; @@ -339,7 +337,6 @@ static int oti6858_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->intr_wait); priv->port = port; INIT_DELAYED_WORK(&priv->delayed_setup_work, setup_line); INIT_DELAYED_WORK(&priv->delayed_write_work, send_data); @@ -652,8 +649,9 @@ static int oti6858_tiocmget(struct tty_struct *tty) return result; } -static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) +static int oti6858_tiocmiwait(struct tty_struct *tty, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct oti6858_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int prev, status; @@ -664,11 +662,15 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - wait_event_interruptible(priv->intr_wait, + wait_event_interruptible(port->port.delta_msr_wait, + port->serial->disconnected || priv->status.pin_state != prev); if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->status.pin_state & PIN_MASK; spin_unlock_irqrestore(&priv->lock, flags); @@ -687,24 +689,6 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) return 0; } -static int oti6858_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - - dev_dbg(&port->dev, "%s(cmd = 0x%04x, arg = 0x%08lx)\n", __func__, cmd, arg); - - switch (cmd) { - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s(): TIOCMIWAIT\n", __func__); - return wait_modem_info(port, arg); - default: - dev_dbg(&port->dev, "%s(): 0x%04x not supported\n", __func__, cmd); - break; - } - return -ENOIOCTLCMD; -} - static void oti6858_read_int_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; @@ -763,7 +747,7 @@ static void oti6858_read_int_callback(struct urb *urb) if (!priv->transient) { if (xs->pin_state != priv->status.pin_state) - wake_up_interruptible(&priv->intr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); memcpy(&priv->status, xs, OTI6858_CTRL_PKT_SIZE); } diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 54adc9125e5c..7151659367a0 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -139,7 +139,6 @@ struct pl2303_serial_private { struct pl2303_private { spinlock_t lock; - wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; }; @@ -150,7 +149,7 @@ static int pl2303_vendor_read(__u16 value, __u16 index, int res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, value, index, buf, 1, 100); - dev_dbg(&serial->dev->dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n", + dev_dbg(&serial->interface->dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n", VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, value, index, res, buf[0]); return res; @@ -162,7 +161,7 @@ static int pl2303_vendor_write(__u16 value, __u16 index, int res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, value, index, NULL, 0, 100); - dev_dbg(&serial->dev->dev, "0x%x:0x%x:0x%x:0x%x %d\n", + dev_dbg(&serial->interface->dev, "0x%x:0x%x:0x%x:0x%x %d\n", VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, value, index, res); return res; @@ -233,7 +232,6 @@ static int pl2303_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); @@ -250,14 +248,15 @@ static int pl2303_port_remove(struct usb_serial_port *port) return 0; } -static int set_control_lines(struct usb_device *dev, u8 value) +static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) { + struct usb_device *dev = port->serial->dev; int retval; retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, value, 0, NULL, 0, 100); - dev_dbg(&dev->dev, "%s - value = %d, retval = %d\n", __func__, + dev_dbg(&port->dev, "%s - value = %d, retval = %d\n", __func__, value, retval); return retval; } @@ -439,7 +438,7 @@ static void pl2303_set_termios(struct tty_struct *tty, if (control != priv->line_control) { control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - set_control_lines(serial->dev, control); + pl2303_set_control_lines(port, control); } else { spin_unlock_irqrestore(&priv->lock, flags); } @@ -482,7 +481,7 @@ static void pl2303_dtr_rts(struct usb_serial_port *port, int on) priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - set_control_lines(port->serial->dev, control); + pl2303_set_control_lines(port, control); } static void pl2303_close(struct usb_serial_port *port) @@ -532,7 +531,6 @@ static int pl2303_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { struct usb_serial_port *port = tty->driver_data; - struct usb_serial *serial = port->serial; struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; u8 control; @@ -550,14 +548,11 @@ static int pl2303_tiocmset(struct tty_struct *tty, control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) - ret = set_control_lines(serial->dev, control); - else - ret = -ENODEV; - mutex_unlock(&serial->disc_mutex); + ret = pl2303_set_control_lines(port, control); + if (ret) + return usb_translate_errors(ret); - return ret; + return 0; } static int pl2303_tiocmget(struct tty_struct *tty) @@ -594,8 +589,9 @@ static int pl2303_carrier_raised(struct usb_serial_port *port) return 0; } -static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) +static int pl2303_tiocmiwait(struct tty_struct *tty, unsigned long arg) { + struct usb_serial_port *port = tty->driver_data; struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int prevstatus; @@ -607,11 +603,14 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - interruptible_sleep_on(&priv->delta_msr_wait); + interruptible_sleep_on(&port->port.delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; + if (port->serial->disconnected) + return -EIO; + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; spin_unlock_irqrestore(&priv->lock, flags); @@ -650,10 +649,6 @@ static int pl2303_ioctl(struct tty_struct *tty, return -EFAULT; return 0; - - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__); - return wait_modem_info(port, arg); default: dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd); break; @@ -719,7 +714,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port, spin_unlock_irqrestore(&priv->lock, flags); if (priv->line_status & UART_BREAK_ERROR) usb_serial_handle_break(port); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); tty = tty_port_tty_get(&port->port); if (!tty) @@ -783,7 +778,7 @@ static void pl2303_process_read_urb(struct urb *urb) line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible(&priv->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); if (!urb->actual_length) return; @@ -834,6 +829,7 @@ static struct usb_serial_driver pl2303_device = { .set_termios = pl2303_set_termios, .tiocmget = pl2303_tiocmget, .tiocmset = pl2303_tiocmset, + .tiocmiwait = pl2303_tiocmiwait, .process_read_urb = pl2303_process_read_urb, .read_int_callback = pl2303_read_int_callback, .attach = pl2303_startup, diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index d643a4d4d770..3c278521f7e2 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -128,9 +128,6 @@ struct qt2_port_private { u8 shadowLSR; u8 shadowMSR; - wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ - struct async_icount icount; - struct usb_serial_port *port; }; @@ -425,12 +422,6 @@ static void qt2_close(struct usb_serial_port *port) port_priv->urb_in_use = false; spin_unlock_irqrestore(&port_priv->urb_lock, flags); - mutex_lock(&port->serial->disc_mutex); - if (port->serial->disconnected) { - mutex_unlock(&port->serial->disc_mutex); - return; - } - /* flush the port transmit buffer */ i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), @@ -461,8 +452,6 @@ static void qt2_close(struct usb_serial_port *port) if (i < 0) dev_err(&port->dev, "%s - close port failed %i\n", __func__, i); - - mutex_unlock(&port->serial->disc_mutex); } static void qt2_disconnect(struct usb_serial *serial) @@ -495,67 +484,6 @@ static int get_serial_info(struct usb_serial_port *port, return 0; } -static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) -{ - struct qt2_port_private *priv = usb_get_serial_port_data(port); - struct async_icount prev, cur; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - prev = priv->icount; - spin_unlock_irqrestore(&priv->lock, flags); - - while (1) { - wait_event_interruptible(priv->delta_msr_wait, - ((priv->icount.rng != prev.rng) || - (priv->icount.dsr != prev.dsr) || - (priv->icount.dcd != prev.dcd) || - (priv->icount.cts != prev.cts))); - - if (signal_pending(current)) - return -ERESTARTSYS; - - spin_lock_irqsave(&priv->lock, flags); - cur = priv->icount; - spin_unlock_irqrestore(&priv->lock, flags); - - if ((prev.rng == cur.rng) && - (prev.dsr == cur.dsr) && - (prev.dcd == cur.dcd) && - (prev.cts == cur.cts)) - return -EIO; - - if ((arg & TIOCM_RNG && (prev.rng != cur.rng)) || - (arg & TIOCM_DSR && (prev.dsr != cur.dsr)) || - (arg & TIOCM_CD && (prev.dcd != cur.dcd)) || - (arg & TIOCM_CTS && (prev.cts != cur.cts))) - return 0; - } - return 0; -} - -static int qt2_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct qt2_port_private *priv = usb_get_serial_port_data(port); - struct async_icount cnow = priv->icount; - - icount->cts = cnow.cts; - icount->dsr = cnow.dsr; - icount->rng = cnow.rng; - icount->dcd = cnow.dcd; - icount->rx = cnow.rx; - icount->tx = cnow.tx; - icount->frame = cnow.frame; - icount->overrun = cnow.overrun; - icount->parity = cnow.parity; - icount->brk = cnow.brk; - icount->buf_overrun = cnow.buf_overrun; - - return 0; -} - static int qt2_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { @@ -565,10 +493,6 @@ static int qt2_ioctl(struct tty_struct *tty, case TIOCGSERIAL: return get_serial_info(port, (struct serial_struct __user *)arg); - - case TIOCMIWAIT: - return wait_modem_info(port, arg); - default: break; } @@ -661,9 +585,7 @@ void qt2_process_read_urb(struct urb *urb) __func__); break; } - - if (port_priv->is_open) - tty_flip_buffer_push(&port->port); + tty_flip_buffer_push(&port->port); newport = *(ch + 3); @@ -706,8 +628,7 @@ void qt2_process_read_urb(struct urb *urb) tty_insert_flip_string(&port->port, ch, 1); } - if (port_priv->is_open) - tty_flip_buffer_push(&port->port); + tty_flip_buffer_push(&port->port); } static void qt2_write_bulk_callback(struct urb *urb) @@ -827,7 +748,6 @@ static int qt2_port_probe(struct usb_serial_port *port) spin_lock_init(&port_priv->lock); spin_lock_init(&port_priv->urb_lock); - init_waitqueue_head(&port_priv->delta_msr_wait); port_priv->port = port; port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL); @@ -959,18 +879,15 @@ static void qt2_update_msr(struct usb_serial_port *port, unsigned char *ch) if (newMSR & UART_MSR_ANY_DELTA) { /* update input line counters */ if (newMSR & UART_MSR_DCTS) - port_priv->icount.cts++; - + port->icount.cts++; if (newMSR & UART_MSR_DDSR) - port_priv->icount.dsr++; - + port->icount.dsr++; if (newMSR & UART_MSR_DDCD) - port_priv->icount.dcd++; - + port->icount.dcd++; if (newMSR & UART_MSR_TERI) - port_priv->icount.rng++; + port->icount.rng++; - wake_up_interruptible(&port_priv->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); } } @@ -990,7 +907,7 @@ static void qt2_update_lsr(struct usb_serial_port *port, unsigned char *ch) port_priv->shadowLSR = newLSR; spin_unlock_irqrestore(&port_priv->lock, flags); - icount = &port_priv->icount; + icount = &port->icount; if (newLSR & UART_LSR_BRK_ERROR_BITS) { @@ -1100,7 +1017,8 @@ static struct usb_serial_driver qt2_device = { .break_ctl = qt2_break_ctl, .tiocmget = qt2_tiocmget, .tiocmset = qt2_tiocmset, - .get_icount = qt2_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .ioctl = qt2_ioctl, .set_termios = qt2_set_termios, }; diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index c13f6e747748..2b06481dc85c 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -778,30 +778,25 @@ static void sierra_close(struct usb_serial_port *port) portdata->rts_state = 0; portdata->dtr_state = 0; - if (serial->dev) { - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) { - serial->interface->needs_remote_wakeup = 0; - /* odd error handling due to pm counters */ - if (!usb_autopm_get_interface(serial->interface)) - sierra_send_setup(port); - else - usb_autopm_get_interface_no_resume(serial->interface); - - } - mutex_unlock(&serial->disc_mutex); - spin_lock_irq(&intfdata->susp_lock); - portdata->opened = 0; - spin_unlock_irq(&intfdata->susp_lock); + mutex_lock(&serial->disc_mutex); + if (!serial->disconnected) { + serial->interface->needs_remote_wakeup = 0; + /* odd error handling due to pm counters */ + if (!usb_autopm_get_interface(serial->interface)) + sierra_send_setup(port); + else + usb_autopm_get_interface_no_resume(serial->interface); + } + mutex_unlock(&serial->disc_mutex); + spin_lock_irq(&intfdata->susp_lock); + portdata->opened = 0; + spin_unlock_irq(&intfdata->susp_lock); - /* Stop reading urbs */ - sierra_stop_rx_urbs(port); - /* .. and release them */ - for (i = 0; i < portdata->num_in_urbs; i++) { - sierra_release_urb(portdata->in_urbs[i]); - portdata->in_urbs[i] = NULL; - } + sierra_stop_rx_urbs(port); + for (i = 0; i < portdata->num_in_urbs; i++) { + sierra_release_urb(portdata->in_urbs[i]); + portdata->in_urbs[i] = NULL; } } diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c index 91ff8e3bddbd..cf3df793c2b7 100644 --- a/drivers/usb/serial/spcp8x5.c +++ b/drivers/usb/serial/spcp8x5.c @@ -1,7 +1,7 @@ /* * spcp8x5 USB to serial adaptor driver * - * Copyright (C) 2010 Johan Hovold (jhovold@gmail.com) + * Copyright (C) 2010-2013 Johan Hovold (jhovold@gmail.com) * Copyright (C) 2006 Linxb (xubin.lin@worldplus.com.cn) * Copyright (C) 2006 S1 Corp. * @@ -13,8 +13,6 @@ * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * - * */ #include <linux/kernel.h> #include <linux/errno.h> @@ -28,7 +26,10 @@ #include <linux/usb.h> #include <linux/usb/serial.h> -#define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver" +#define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver" + +#define SPCP825_QUIRK_NO_UART_STATUS 0x01 +#define SPCP825_QUIRK_NO_WORK_MODE 0x02 #define SPCP8x5_007_VID 0x04FC #define SPCP8x5_007_PID 0x0201 @@ -46,13 +47,15 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)}, { USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)}, { USB_DEVICE(SPCP8x5_008_VID, SPCP8x5_008_PID)}, - { USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID)}, + { USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID), + .driver_info = SPCP825_QUIRK_NO_UART_STATUS | + SPCP825_QUIRK_NO_WORK_MODE }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, id_table); struct spcp8x5_usb_ctrl_arg { - u8 type; + u8 type; u8 cmd; u8 cmd_type; u16 value; @@ -138,51 +141,33 @@ struct spcp8x5_usb_ctrl_arg { #define UART_OVERRUN_ERROR 0x40 #define UART_CTS 0x80 -enum spcp8x5_type { - SPCP825_007_TYPE, - SPCP825_008_TYPE, - SPCP825_PHILIP_TYPE, - SPCP825_INTERMATIC_TYPE, - SPCP835_TYPE, -}; - struct spcp8x5_private { - spinlock_t lock; - enum spcp8x5_type type; - wait_queue_head_t delta_msr_wait; - u8 line_control; - u8 line_status; + unsigned quirks; + spinlock_t lock; + u8 line_control; }; +static int spcp8x5_probe(struct usb_serial *serial, + const struct usb_device_id *id) +{ + usb_set_serial_data(serial, (void *)id); + + return 0; +} + static int spcp8x5_port_probe(struct usb_serial_port *port) { - struct usb_serial *serial = port->serial; + const struct usb_device_id *id = usb_get_serial_data(port->serial); struct spcp8x5_private *priv; - enum spcp8x5_type type = SPCP825_007_TYPE; - u16 product = le16_to_cpu(serial->dev->descriptor.idProduct); - - if (product == 0x0201) - type = SPCP825_007_TYPE; - else if (product == 0x0231) - type = SPCP835_TYPE; - else if (product == 0x0235) - type = SPCP825_008_TYPE; - else if (product == 0x0204) - type = SPCP825_INTERMATIC_TYPE; - else if (product == 0x0471 && - serial->dev->descriptor.idVendor == cpu_to_le16(0x081e)) - type = SPCP825_PHILIP_TYPE; - dev_dbg(&serial->dev->dev, "device type = %d\n", (int)type); priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; spin_lock_init(&priv->lock); - init_waitqueue_head(&priv->delta_msr_wait); - priv->type = type; + priv->quirks = id->driver_info; - usb_set_serial_port_data(port , priv); + usb_set_serial_port_data(port, priv); return 0; } @@ -197,86 +182,79 @@ static int spcp8x5_port_remove(struct usb_serial_port *port) return 0; } -/* set the modem control line of the device. - * NOTE spcp825-007 not supported this */ -static int spcp8x5_set_ctrlLine(struct usb_device *dev, u8 value, - enum spcp8x5_type type) +static int spcp8x5_set_ctrl_line(struct usb_serial_port *port, u8 mcr) { + struct spcp8x5_private *priv = usb_get_serial_port_data(port); + struct usb_device *dev = port->serial->dev; int retval; - u8 mcr = 0 ; - if (type == SPCP825_007_TYPE) + if (priv->quirks & SPCP825_QUIRK_NO_UART_STATUS) return -EPERM; - mcr = (unsigned short)value; retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_UART_STATUS_TYPE, SET_UART_STATUS, mcr, 0x04, NULL, 0, 100); - if (retval != 0) - dev_dbg(&dev->dev, "usb_control_msg return %#x\n", retval); + if (retval != 0) { + dev_err(&port->dev, "failed to set control lines: %d\n", + retval); + } return retval; } -/* get the modem status register of the device - * NOTE spcp825-007 not supported this */ -static int spcp8x5_get_msr(struct usb_device *dev, u8 *status, - enum spcp8x5_type type) +static int spcp8x5_get_msr(struct usb_serial_port *port, u8 *status) { - u8 *status_buffer; + struct spcp8x5_private *priv = usb_get_serial_port_data(port); + struct usb_device *dev = port->serial->dev; + u8 *buf; int ret; - /* I return Permited not support here but seem inval device - * is more fix */ - if (type == SPCP825_007_TYPE) + if (priv->quirks & SPCP825_QUIRK_NO_UART_STATUS) return -EPERM; - if (status == NULL) - return -EINVAL; - status_buffer = kmalloc(1, GFP_KERNEL); - if (!status_buffer) + buf = kzalloc(1, GFP_KERNEL); + if (!buf) return -ENOMEM; - status_buffer[0] = status[0]; ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), GET_UART_STATUS, GET_UART_STATUS_TYPE, - 0, GET_UART_STATUS_MSR, status_buffer, 1, 100); + 0, GET_UART_STATUS_MSR, buf, 1, 100); if (ret < 0) - dev_dbg(&dev->dev, "Get MSR = 0x%p failed (error = %d)", - status_buffer, ret); + dev_err(&port->dev, "failed to get modem status: %d", ret); - dev_dbg(&dev->dev, "0xc0:0x22:0:6 %d - 0x%p ", ret, status_buffer); - status[0] = status_buffer[0]; - kfree(status_buffer); + dev_dbg(&port->dev, "0xc0:0x22:0:6 %d - 0x02%x", ret, *buf); + *status = *buf; + kfree(buf); return ret; } -/* select the work mode. - * NOTE this function not supported by spcp825-007 */ -static void spcp8x5_set_workMode(struct usb_device *dev, u16 value, - u16 index, enum spcp8x5_type type) +static void spcp8x5_set_work_mode(struct usb_serial_port *port, u16 value, + u16 index) { + struct spcp8x5_private *priv = usb_get_serial_port_data(port); + struct usb_device *dev = port->serial->dev; int ret; - /* I return Permited not support here but seem inval device - * is more fix */ - if (type == SPCP825_007_TYPE) + if (priv->quirks & SPCP825_QUIRK_NO_WORK_MODE) return; ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_WORKING_MODE_TYPE, SET_WORKING_MODE, value, index, NULL, 0, 100); - dev_dbg(&dev->dev, "value = %#x , index = %#x\n", value, index); + dev_dbg(&port->dev, "value = %#x , index = %#x\n", value, index); if (ret < 0) - dev_dbg(&dev->dev, - "RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret); + dev_err(&port->dev, "failed to set work mode: %d\n", ret); } static int spcp8x5_carrier_raised(struct usb_serial_port *port) { - struct spcp8x5_private *priv = usb_get_serial_port_data(port); - if (priv->line_status & MSR_STATUS_LINE_DCD) + u8 msr; + int ret; + + ret = spcp8x5_get_msr(port, &msr); + if (ret || msr & MSR_STATUS_LINE_DCD) return 1; + return 0; } @@ -295,20 +273,17 @@ static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on) | MCR_CONTROL_LINE_RTS); control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); + spcp8x5_set_ctrl_line(port, control); } static void spcp8x5_init_termios(struct tty_struct *tty) { - /* for the 1st time call this function */ tty->termios = tty_std_termios; tty->termios.c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL; tty->termios.c_ispeed = 115200; tty->termios.c_ospeed = 115200; } -/* set the serial param for transfer. we should check if we really need to - * transfer. if we set flow control we should do this too. */ static void spcp8x5_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { @@ -323,7 +298,6 @@ static void spcp8x5_set_termios(struct tty_struct *tty, int i; u8 control; - /* check that they really want us to change something */ if (!tty_termios_hw_change(&tty->termios, old_termios)) return; @@ -339,7 +313,7 @@ static void spcp8x5_set_termios(struct tty_struct *tty, if (control != priv->line_control) { control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - spcp8x5_set_ctrlLine(serial->dev, control , priv->type); + spcp8x5_set_ctrl_line(port, control); } else { spin_unlock_irqrestore(&priv->lock, flags); } @@ -399,9 +373,9 @@ static void spcp8x5_set_termios(struct tty_struct *tty, if (cflag & PARENB) { buf[1] |= (cflag & PARODD) ? SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ; - } else + } else { buf[1] |= SET_UART_FORMAT_PAR_NONE; - + } uartdata = buf[0] | buf[1]<<8; i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), @@ -414,22 +388,16 @@ static void spcp8x5_set_termios(struct tty_struct *tty, if (cflag & CRTSCTS) { /* enable hardware flow control */ - spcp8x5_set_workMode(serial->dev, 0x000a, - SET_WORKING_MODE_U2C, priv->type); + spcp8x5_set_work_mode(port, 0x000a, SET_WORKING_MODE_U2C); } } -/* open the serial port. do some usb system call. set termios and get the line - * status of the device. */ static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) { struct ktermios tmp_termios; struct usb_serial *serial = port->serial; struct spcp8x5_private *priv = usb_get_serial_port_data(port); int ret; - unsigned long flags; - u8 status = 0x30; - /* status 0x30 means DSR and CTS = 1 other CDC RI and delta = 0 */ usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); @@ -440,139 +408,16 @@ static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) if (ret) return ret; - spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type); + spcp8x5_set_ctrl_line(port, priv->line_control); - /* Setup termios */ if (tty) spcp8x5_set_termios(tty, port, &tmp_termios); - spcp8x5_get_msr(serial->dev, &status, priv->type); - - /* may be we should update uart status here but now we did not do */ - spin_lock_irqsave(&priv->lock, flags); - priv->line_status = status & 0xf0 ; - spin_unlock_irqrestore(&priv->lock, flags); - port->port.drain_delay = 256; return usb_serial_generic_open(tty, port); } -static void spcp8x5_process_read_urb(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - struct spcp8x5_private *priv = usb_get_serial_port_data(port); - unsigned char *data = urb->transfer_buffer; - unsigned long flags; - u8 status; - char tty_flag; - - /* get tty_flag from status */ - tty_flag = TTY_NORMAL; - - spin_lock_irqsave(&priv->lock, flags); - status = priv->line_status; - priv->line_status &= ~UART_STATE_TRANSIENT_MASK; - spin_unlock_irqrestore(&priv->lock, flags); - /* wake up the wait for termios */ - wake_up_interruptible(&priv->delta_msr_wait); - - if (!urb->actual_length) - return; - - - if (status & UART_STATE_TRANSIENT_MASK) { - /* break takes precedence over parity, which takes precedence - * over framing errors */ - if (status & UART_BREAK_ERROR) - tty_flag = TTY_BREAK; - else if (status & UART_PARITY_ERROR) - tty_flag = TTY_PARITY; - else if (status & UART_FRAME_ERROR) - tty_flag = TTY_FRAME; - dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag); - - /* overrun is special, not associated with a char */ - if (status & UART_OVERRUN_ERROR) - tty_insert_flip_char(&port->port, 0, TTY_OVERRUN); - - if (status & UART_DCD) { - struct tty_struct *tty = tty_port_tty_get(&port->port); - if (tty) { - usb_serial_handle_dcd_change(port, tty, - priv->line_status & MSR_STATUS_LINE_DCD); - tty_kref_put(tty); - } - } - } - - tty_insert_flip_string_fixed_flag(&port->port, data, tty_flag, - urb->actual_length); - tty_flip_buffer_push(&port->port); -} - -static int spcp8x5_wait_modem_info(struct usb_serial_port *port, - unsigned int arg) -{ - struct spcp8x5_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - unsigned int prevstatus; - unsigned int status; - unsigned int changed; - - spin_lock_irqsave(&priv->lock, flags); - prevstatus = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - while (1) { - /* wake up in bulk read */ - interruptible_sleep_on(&priv->delta_msr_wait); - - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - - spin_lock_irqsave(&priv->lock, flags); - status = priv->line_status; - spin_unlock_irqrestore(&priv->lock, flags); - - changed = prevstatus^status; - - if (((arg & TIOCM_RNG) && (changed & MSR_STATUS_LINE_RI)) || - ((arg & TIOCM_DSR) && (changed & MSR_STATUS_LINE_DSR)) || - ((arg & TIOCM_CD) && (changed & MSR_STATUS_LINE_DCD)) || - ((arg & TIOCM_CTS) && (changed & MSR_STATUS_LINE_CTS))) - return 0; - - prevstatus = status; - } - /* NOTREACHED */ - return 0; -} - -static int spcp8x5_ioctl(struct tty_struct *tty, - unsigned int cmd, unsigned long arg) -{ - struct usb_serial_port *port = tty->driver_data; - - dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__, - port->number, cmd); - - switch (cmd) { - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, - port->number); - return spcp8x5_wait_modem_info(port, arg); - - default: - dev_dbg(&port->dev, "%s not supported = 0x%04x", __func__, - cmd); - break; - } - - return -ENOIOCTLCMD; -} - static int spcp8x5_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { @@ -593,7 +438,7 @@ static int spcp8x5_tiocmset(struct tty_struct *tty, control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - return spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); + return spcp8x5_set_ctrl_line(port, control); } static int spcp8x5_tiocmget(struct tty_struct *tty) @@ -602,12 +447,15 @@ static int spcp8x5_tiocmget(struct tty_struct *tty) struct spcp8x5_private *priv = usb_get_serial_port_data(port); unsigned long flags; unsigned int mcr; - unsigned int status; + u8 status; unsigned int result; + result = spcp8x5_get_msr(port, &status); + if (result) + return result; + spin_lock_irqsave(&priv->lock, flags); mcr = priv->line_control; - status = priv->line_status; spin_unlock_irqrestore(&priv->lock, flags); result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) @@ -620,7 +468,6 @@ static int spcp8x5_tiocmget(struct tty_struct *tty) return result; } -/* All of the device info needed for the spcp8x5 SIO serial converter */ static struct usb_serial_driver spcp8x5_device = { .driver = { .owner = THIS_MODULE, @@ -628,17 +475,16 @@ static struct usb_serial_driver spcp8x5_device = { }, .id_table = id_table, .num_ports = 1, - .open = spcp8x5_open, + .open = spcp8x5_open, .dtr_rts = spcp8x5_dtr_rts, .carrier_raised = spcp8x5_carrier_raised, - .set_termios = spcp8x5_set_termios, + .set_termios = spcp8x5_set_termios, .init_termios = spcp8x5_init_termios, - .ioctl = spcp8x5_ioctl, - .tiocmget = spcp8x5_tiocmget, - .tiocmset = spcp8x5_tiocmset, + .tiocmget = spcp8x5_tiocmget, + .tiocmset = spcp8x5_tiocmset, + .probe = spcp8x5_probe, .port_probe = spcp8x5_port_probe, .port_remove = spcp8x5_port_remove, - .process_read_urb = spcp8x5_process_read_urb, }; static struct usb_serial_driver * const serial_drivers[] = { diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index b57cf841c5b6..5b62dbbdf996 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -61,8 +61,6 @@ struct ssu100_port_private { spinlock_t status_lock; u8 shadowLSR; u8 shadowMSR; - wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ - struct async_icount icount; }; static inline int ssu100_control_msg(struct usb_device *dev, @@ -316,11 +314,6 @@ static int ssu100_open(struct tty_struct *tty, struct usb_serial_port *port) return usb_serial_generic_open(tty, port); } -static void ssu100_close(struct usb_serial_port *port) -{ - usb_serial_generic_close(port); -} - static int get_serial_info(struct usb_serial_port *port, struct serial_struct __user *retinfo) { @@ -344,69 +337,6 @@ static int get_serial_info(struct usb_serial_port *port, return 0; } -static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) -{ - struct ssu100_port_private *priv = usb_get_serial_port_data(port); - struct async_icount prev, cur; - unsigned long flags; - - spin_lock_irqsave(&priv->status_lock, flags); - prev = priv->icount; - spin_unlock_irqrestore(&priv->status_lock, flags); - - while (1) { - wait_event_interruptible(priv->delta_msr_wait, - ((priv->icount.rng != prev.rng) || - (priv->icount.dsr != prev.dsr) || - (priv->icount.dcd != prev.dcd) || - (priv->icount.cts != prev.cts))); - - if (signal_pending(current)) - return -ERESTARTSYS; - - spin_lock_irqsave(&priv->status_lock, flags); - cur = priv->icount; - spin_unlock_irqrestore(&priv->status_lock, flags); - - if ((prev.rng == cur.rng) && - (prev.dsr == cur.dsr) && - (prev.dcd == cur.dcd) && - (prev.cts == cur.cts)) - return -EIO; - - if ((arg & TIOCM_RNG && (prev.rng != cur.rng)) || - (arg & TIOCM_DSR && (prev.dsr != cur.dsr)) || - (arg & TIOCM_CD && (prev.dcd != cur.dcd)) || - (arg & TIOCM_CTS && (prev.cts != cur.cts))) - return 0; - } - return 0; -} - -static int ssu100_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct ssu100_port_private *priv = usb_get_serial_port_data(port); - struct async_icount cnow = priv->icount; - - icount->cts = cnow.cts; - icount->dsr = cnow.dsr; - icount->rng = cnow.rng; - icount->dcd = cnow.dcd; - icount->rx = cnow.rx; - icount->tx = cnow.tx; - icount->frame = cnow.frame; - icount->overrun = cnow.overrun; - icount->parity = cnow.parity; - icount->brk = cnow.brk; - icount->buf_overrun = cnow.buf_overrun; - - return 0; -} - - - static int ssu100_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { @@ -418,10 +348,6 @@ static int ssu100_ioctl(struct tty_struct *tty, case TIOCGSERIAL: return get_serial_info(port, (struct serial_struct __user *) arg); - - case TIOCMIWAIT: - return wait_modem_info(port, arg); - default: break; } @@ -445,7 +371,6 @@ static int ssu100_port_probe(struct usb_serial_port *port) return -ENOMEM; spin_lock_init(&priv->status_lock); - init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); @@ -530,14 +455,14 @@ static void ssu100_update_msr(struct usb_serial_port *port, u8 msr) if (msr & UART_MSR_ANY_DELTA) { /* update input line counters */ if (msr & UART_MSR_DCTS) - priv->icount.cts++; + port->icount.cts++; if (msr & UART_MSR_DDSR) - priv->icount.dsr++; + port->icount.dsr++; if (msr & UART_MSR_DDCD) - priv->icount.dcd++; + port->icount.dcd++; if (msr & UART_MSR_TERI) - priv->icount.rng++; - wake_up_interruptible(&priv->delta_msr_wait); + port->icount.rng++; + wake_up_interruptible(&port->port.delta_msr_wait); } } @@ -556,22 +481,22 @@ static void ssu100_update_lsr(struct usb_serial_port *port, u8 lsr, /* we always want to update icount, but we only want to * update tty_flag for one case */ if (lsr & UART_LSR_BI) { - priv->icount.brk++; + port->icount.brk++; *tty_flag = TTY_BREAK; usb_serial_handle_break(port); } if (lsr & UART_LSR_PE) { - priv->icount.parity++; + port->icount.parity++; if (*tty_flag == TTY_NORMAL) *tty_flag = TTY_PARITY; } if (lsr & UART_LSR_FE) { - priv->icount.frame++; + port->icount.frame++; if (*tty_flag == TTY_NORMAL) *tty_flag = TTY_FRAME; } if (lsr & UART_LSR_OE){ - priv->icount.overrun++; + port->icount.overrun++; if (*tty_flag == TTY_NORMAL) *tty_flag = TTY_OVERRUN; } @@ -628,7 +553,6 @@ static struct usb_serial_driver ssu100_device = { .id_table = id_table, .num_ports = 1, .open = ssu100_open, - .close = ssu100_close, .attach = ssu100_attach, .port_probe = ssu100_port_probe, .port_remove = ssu100_port_remove, @@ -636,10 +560,10 @@ static struct usb_serial_driver ssu100_device = { .process_read_urb = ssu100_process_read_urb, .tiocmget = ssu100_tiocmget, .tiocmset = ssu100_tiocmset, - .get_icount = ssu100_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .ioctl = ssu100_ioctl, .set_termios = ssu100_set_termios, - .disconnect = usb_serial_generic_disconnect, }; static struct usb_serial_driver * const serial_drivers[] = { diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 39cb9b807c3c..07268591b0d1 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -73,8 +73,6 @@ struct ti_port { unsigned int tp_uart_base_addr; int tp_flags; int tp_closing_wait;/* in .01 secs */ - struct async_icount tp_icount; - wait_queue_head_t tp_msr_wait; /* wait for msr change */ wait_queue_head_t tp_write_wait; struct ti_device *tp_tdev; struct usb_serial_port *tp_port; @@ -109,8 +107,6 @@ static void ti_throttle(struct tty_struct *tty); static void ti_unthrottle(struct tty_struct *tty); static int ti_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg); -static int ti_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount); static void ti_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios); static int ti_tiocmget(struct tty_struct *tty); @@ -236,7 +232,8 @@ static struct usb_serial_driver ti_1port_device = { .set_termios = ti_set_termios, .tiocmget = ti_tiocmget, .tiocmset = ti_tiocmset, - .get_icount = ti_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .break_ctl = ti_break, .read_int_callback = ti_interrupt_callback, .read_bulk_callback = ti_bulk_in_callback, @@ -266,7 +263,8 @@ static struct usb_serial_driver ti_2port_device = { .set_termios = ti_set_termios, .tiocmget = ti_tiocmget, .tiocmset = ti_tiocmset, - .get_icount = ti_get_icount, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .break_ctl = ti_break, .read_int_callback = ti_interrupt_callback, .read_bulk_callback = ti_bulk_in_callback, @@ -432,7 +430,6 @@ static int ti_port_probe(struct usb_serial_port *port) else tport->tp_uart_base_addr = TI_UART2_BASE_ADDR; tport->tp_closing_wait = closing_wait; - init_waitqueue_head(&tport->tp_msr_wait); init_waitqueue_head(&tport->tp_write_wait); if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, GFP_KERNEL)) { kfree(tport); @@ -482,8 +479,6 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) port_number = port->number - port->serial->minor; - memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount)); - tport->tp_msr = 0; tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); @@ -733,38 +728,11 @@ static void ti_unthrottle(struct tty_struct *tty) } } -static int ti_get_icount(struct tty_struct *tty, - struct serial_icounter_struct *icount) -{ - struct usb_serial_port *port = tty->driver_data; - struct ti_port *tport = usb_get_serial_port_data(port); - struct async_icount cnow = tport->tp_icount; - - dev_dbg(&port->dev, "%s - TIOCGICOUNT RX=%d, TX=%d\n", __func__, - cnow.rx, cnow.tx); - - icount->cts = cnow.cts; - icount->dsr = cnow.dsr; - icount->rng = cnow.rng; - icount->dcd = cnow.dcd; - icount->rx = cnow.rx; - icount->tx = cnow.tx; - icount->frame = cnow.frame; - icount->overrun = cnow.overrun; - icount->parity = cnow.parity; - icount->brk = cnow.brk; - icount->buf_overrun = cnow.buf_overrun; - - return 0; -} - static int ti_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); - struct async_icount cnow; - struct async_icount cprev; dev_dbg(&port->dev, "%s - cmd = 0x%04X\n", __func__, cmd); @@ -780,25 +748,6 @@ static int ti_ioctl(struct tty_struct *tty, dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__); return ti_set_serial_info(tty, tport, (struct serial_struct __user *)arg); - case TIOCMIWAIT: - dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__); - cprev = tport->tp_icount; - while (1) { - interruptible_sleep_on(&tport->tp_msr_wait); - if (signal_pending(current)) - return -ERESTARTSYS; - cnow = tport->tp_icount; - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) - return 0; - cprev = cnow; - } - break; } return -ENOIOCTLCMD; } @@ -1154,7 +1103,7 @@ static void ti_bulk_in_callback(struct urb *urb) else ti_recv(port, urb->transfer_buffer, urb->actual_length); spin_lock(&tport->tp_lock); - tport->tp_icount.rx += urb->actual_length; + port->icount.rx += urb->actual_length; spin_unlock(&tport->tp_lock); } @@ -1263,7 +1212,7 @@ static void ti_send(struct ti_port *tport) /* TODO: reschedule ti_send */ } else { spin_lock_irqsave(&tport->tp_lock, flags); - tport->tp_icount.tx += count; + port->icount.tx += count; spin_unlock_irqrestore(&tport->tp_lock, flags); } @@ -1383,7 +1332,7 @@ static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) if (msr & TI_MSR_DELTA_MASK) { spin_lock_irqsave(&tport->tp_lock, flags); - icount = &tport->tp_icount; + icount = &tport->tp_port->icount; if (msr & TI_MSR_DELTA_CTS) icount->cts++; if (msr & TI_MSR_DELTA_DSR) @@ -1392,7 +1341,7 @@ static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) icount->dcd++; if (msr & TI_MSR_DELTA_RI) icount->rng++; - wake_up_interruptible(&tport->tp_msr_wait); + wake_up_interruptible(&tport->tp_port->port.delta_msr_wait); spin_unlock_irqrestore(&tport->tp_lock, flags); } diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index a19ed74d770d..5eb96df8de05 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1,6 +1,7 @@ /* * USB Serial Converter driver * + * Copyright (C) 2009 - 2013 Johan Hovold (jhovold@gmail.com) * Copyright (C) 1999 - 2012 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2000 Peter Berger (pberger@brimson.com) * Copyright (C) 2000 Al Borchers (borchers@steinerpoint.com) @@ -14,7 +15,6 @@ * * See Documentation/usb/usb-serial.txt for more information on using this * driver - * */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -49,7 +49,6 @@ drivers depend on it. */ -/* initially all NULL */ static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; static DEFINE_MUTEX(table_lock); static LIST_HEAD(usb_serial_driver_list); @@ -139,7 +138,7 @@ static void destroy_serial(struct kref *kref) if (serial->minor != SERIAL_TTY_NO_MINOR) return_serial(serial); - if (serial->attached) + if (serial->attached && serial->type->release) serial->type->release(serial); /* Now that nothing is using the ports, they can be freed */ @@ -151,6 +150,7 @@ static void destroy_serial(struct kref *kref) } } + usb_put_intf(serial->interface); usb_put_dev(serial->dev); kfree(serial); } @@ -224,7 +224,7 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty) return retval; } -static int serial_activate(struct tty_port *tport, struct tty_struct *tty) +static int serial_port_activate(struct tty_port *tport, struct tty_struct *tty) { struct usb_serial_port *port = container_of(tport, struct usb_serial_port, port); @@ -248,30 +248,27 @@ static int serial_open(struct tty_struct *tty, struct file *filp) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); + return tty_port_open(&port->port, tty, filp); } /** - * serial_down - shut down hardware + * serial_port_shutdown - shut down hardware * @tport: tty port to shut down * - * Shut down a USB serial port unless it is the console. We never - * shut down the console hardware as it will always be in use. Serialized - * against activate by the tport mutex and kept to matching open/close pairs + * Shut down a USB serial port. Serialized against activate by the + * tport mutex and kept to matching open/close pairs * of calls by the ASYNCB_INITIALIZED flag. + * + * Not called if tty is console. */ -static void serial_down(struct tty_port *tport) +static void serial_port_shutdown(struct tty_port *tport) { struct usb_serial_port *port = container_of(tport, struct usb_serial_port, port); struct usb_serial_driver *drv = port->serial->type; - /* - * The console is magical. Do not hang up the console hardware - * or there will be tears. - */ - if (port->port.console) - return; + if (drv->close) drv->close(port); } @@ -280,7 +277,8 @@ static void serial_hangup(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); + tty_port_hangup(&port->port); } @@ -288,7 +286,8 @@ static void serial_close(struct tty_struct *tty, struct file *filp) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); + tty_port_close(&port->port, tty, filp); } @@ -307,14 +306,14 @@ static void serial_cleanup(struct tty_struct *tty) struct usb_serial *serial; struct module *owner; + dev_dbg(tty->dev, "%s\n", __func__); + /* The console is magical. Do not hang up the console hardware * or there will be tears. */ if (port->port.console) return; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); - tty->driver_data = NULL; serial = port->serial; @@ -338,10 +337,8 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf, if (port->serial->dev->state == USB_STATE_NOTATTACHED) goto exit; - dev_dbg(tty->dev, "%s - port %d, %d byte(s)\n", __func__, - port->number, count); + dev_dbg(tty->dev, "%s - %d byte(s)\n", __func__, count); - /* pass on to the driver specific version of this function */ retval = port->serial->type->write(tty, port, buf, count); if (retval < 0) retval = usb_translate_errors(retval); @@ -353,8 +350,8 @@ static int serial_write_room(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); - /* pass on to the driver specific version of this function */ + dev_dbg(tty->dev, "%s\n", __func__); + return port->serial->type->write_room(tty); } @@ -364,7 +361,7 @@ static int serial_chars_in_buffer(struct tty_struct *tty) struct usb_serial *serial = port->serial; int count = 0; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); mutex_lock(&serial->disc_mutex); /* if the device was unplugged then any remaining characters @@ -382,9 +379,8 @@ static void serial_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); - /* pass on to the driver specific version of this function */ if (port->serial->type->throttle) port->serial->type->throttle(tty); } @@ -393,9 +389,8 @@ static void serial_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); - /* pass on to the driver specific version of this function */ if (port->serial->type->unthrottle) port->serial->type->unthrottle(tty); } @@ -406,15 +401,20 @@ static int serial_ioctl(struct tty_struct *tty, struct usb_serial_port *port = tty->driver_data; int retval = -ENODEV; - dev_dbg(tty->dev, "%s - port %d, cmd 0x%.4x\n", __func__, - port->number, cmd); + dev_dbg(tty->dev, "%s - cmd 0x%.4x\n", __func__, cmd); + + switch (cmd) { + case TIOCMIWAIT: + if (port->serial->type->tiocmiwait) + retval = port->serial->type->tiocmiwait(tty, arg); + break; + default: + if (port->serial->type->ioctl) + retval = port->serial->type->ioctl(tty, cmd, arg); + else + retval = -ENOIOCTLCMD; + } - /* pass on to the driver specific version of this function - if it is available */ - if (port->serial->type->ioctl) { - retval = port->serial->type->ioctl(tty, cmd, arg); - } else - retval = -ENOIOCTLCMD; return retval; } @@ -422,10 +422,8 @@ static void serial_set_termios(struct tty_struct *tty, struct ktermios *old) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); - /* pass on to the driver specific version of this function - if it is available */ if (port->serial->type->set_termios) port->serial->type->set_termios(tty, port, old); else @@ -436,12 +434,11 @@ static int serial_break(struct tty_struct *tty, int break_state) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); - /* pass on to the driver specific version of this function - if it is available */ if (port->serial->type->break_ctl) port->serial->type->break_ctl(tty, break_state); + return 0; } @@ -495,7 +492,7 @@ static int serial_tiocmget(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); if (port->serial->type->tiocmget) return port->serial->type->tiocmget(tty); @@ -507,7 +504,7 @@ static int serial_tiocmset(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); if (port->serial->type->tiocmset) return port->serial->type->tiocmset(tty, set, clear); @@ -519,7 +516,7 @@ static int serial_get_icount(struct tty_struct *tty, { struct usb_serial_port *port = tty->driver_data; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); if (port->serial->type->get_icount) return port->serial->type->get_icount(tty, icount); @@ -547,49 +544,45 @@ static void usb_serial_port_work(struct work_struct *work) if (!tty) return; - dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number); + dev_dbg(tty->dev, "%s\n", __func__); tty_wakeup(tty); tty_kref_put(tty); } -static void kill_traffic(struct usb_serial_port *port) +static void usb_serial_port_poison_urbs(struct usb_serial_port *port) { int i; for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) - usb_kill_urb(port->read_urbs[i]); + usb_poison_urb(port->read_urbs[i]); for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) - usb_kill_urb(port->write_urbs[i]); - /* - * This is tricky. - * Some drivers submit the read_urb in the - * handler for the write_urb or vice versa - * this order determines the order in which - * usb_kill_urb() must be used to reliably - * kill the URBs. As it is unknown here, - * both orders must be used in turn. - * The call below is not redundant. - */ - usb_kill_urb(port->read_urb); - usb_kill_urb(port->interrupt_in_urb); - usb_kill_urb(port->interrupt_out_urb); + usb_poison_urb(port->write_urbs[i]); + + usb_poison_urb(port->interrupt_in_urb); + usb_poison_urb(port->interrupt_out_urb); +} + +static void usb_serial_port_unpoison_urbs(struct usb_serial_port *port) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) + usb_unpoison_urb(port->read_urbs[i]); + for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) + usb_unpoison_urb(port->write_urbs[i]); + + usb_unpoison_urb(port->interrupt_in_urb); + usb_unpoison_urb(port->interrupt_out_urb); } -static void port_release(struct device *dev) +static void usb_serial_port_release(struct device *dev) { struct usb_serial_port *port = to_usb_serial_port(dev); int i; dev_dbg(dev, "%s\n", __func__); - /* - * Stop all the traffic before cancelling the work, so that - * nobody will restart it by calling usb_serial_port_softint. - */ - kill_traffic(port); - cancel_work_sync(&port->work); - usb_free_urb(port->interrupt_in_urb); usb_free_urb(port->interrupt_out_urb); for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) { @@ -614,13 +607,11 @@ static struct usb_serial *create_serial(struct usb_device *dev, struct usb_serial *serial; serial = kzalloc(sizeof(*serial), GFP_KERNEL); - if (!serial) { - dev_err(&dev->dev, "%s - out of memory\n", __func__); + if (!serial) return NULL; - } serial->dev = usb_get_dev(dev); serial->type = driver; - serial->interface = interface; + serial->interface = usb_get_intf(interface); kref_init(&serial->kref); mutex_init(&serial->disc_mutex); serial->minor = SERIAL_TTY_NO_MINOR; @@ -680,7 +671,7 @@ static struct usb_serial_driver *search_serial_device( return NULL; } -static int serial_carrier_raised(struct tty_port *port) +static int serial_port_carrier_raised(struct tty_port *port) { struct usb_serial_port *p = container_of(port, struct usb_serial_port, port); struct usb_serial_driver *drv = p->serial->type; @@ -691,7 +682,7 @@ static int serial_carrier_raised(struct tty_port *port) return 1; } -static void serial_dtr_rts(struct tty_port *port, int on) +static void serial_port_dtr_rts(struct tty_port *port, int on) { struct usb_serial_port *p = container_of(port, struct usb_serial_port, port); struct usb_serial *serial = p->serial; @@ -711,10 +702,10 @@ static void serial_dtr_rts(struct tty_port *port, int on) } static const struct tty_port_operations serial_port_ops = { - .carrier_raised = serial_carrier_raised, - .dtr_rts = serial_dtr_rts, - .activate = serial_activate, - .shutdown = serial_down, + .carrier_raised = serial_port_carrier_raised, + .dtr_rts = serial_port_dtr_rts, + .activate = serial_port_activate, + .shutdown = serial_port_shutdown, }; static int usb_serial_probe(struct usb_interface *interface, @@ -761,7 +752,6 @@ static int usb_serial_probe(struct usb_interface *interface, serial = create_serial(dev, interface, type); if (!serial) { module_put(type->driver.owner); - dev_err(ddev, "%s - out of memory\n", __func__); return -ENOMEM; } @@ -909,7 +899,7 @@ static int usb_serial_probe(struct usb_interface *interface, port->dev.parent = &interface->dev; port->dev.driver = NULL; port->dev.bus = &usb_serial_bus_type; - port->dev.release = &port_release; + port->dev.release = &usb_serial_port_release; device_initialize(&port->dev); } @@ -925,16 +915,12 @@ static int usb_serial_probe(struct usb_interface *interface, for (j = 0; j < ARRAY_SIZE(port->read_urbs); ++j) { set_bit(j, &port->read_urbs_free); port->read_urbs[j] = usb_alloc_urb(0, GFP_KERNEL); - if (!port->read_urbs[j]) { - dev_err(ddev, "No free urbs available\n"); + if (!port->read_urbs[j]) goto probe_error; - } port->bulk_in_buffers[j] = kmalloc(buffer_size, GFP_KERNEL); - if (!port->bulk_in_buffers[j]) { - dev_err(ddev, "Couldn't allocate bulk_in_buffer\n"); + if (!port->bulk_in_buffers[j]) goto probe_error; - } usb_fill_bulk_urb(port->read_urbs[j], dev, usb_rcvbulkpipe(dev, endpoint->bEndpointAddress), @@ -961,16 +947,12 @@ static int usb_serial_probe(struct usb_interface *interface, for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j) { set_bit(j, &port->write_urbs_free); port->write_urbs[j] = usb_alloc_urb(0, GFP_KERNEL); - if (!port->write_urbs[j]) { - dev_err(ddev, "No free urbs available\n"); + if (!port->write_urbs[j]) goto probe_error; - } port->bulk_out_buffers[j] = kmalloc(buffer_size, GFP_KERNEL); - if (!port->bulk_out_buffers[j]) { - dev_err(ddev, "Couldn't allocate bulk_out_buffer\n"); + if (!port->bulk_out_buffers[j]) goto probe_error; - } usb_fill_bulk_urb(port->write_urbs[j], dev, usb_sndbulkpipe(dev, endpoint->bEndpointAddress), @@ -988,19 +970,15 @@ static int usb_serial_probe(struct usb_interface *interface, endpoint = interrupt_in_endpoint[i]; port = serial->port[i]; port->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!port->interrupt_in_urb) { - dev_err(ddev, "No free urbs available\n"); + if (!port->interrupt_in_urb) goto probe_error; - } buffer_size = usb_endpoint_maxp(endpoint); port->interrupt_in_endpointAddress = endpoint->bEndpointAddress; port->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!port->interrupt_in_buffer) { - dev_err(ddev, "Couldn't allocate interrupt_in_buffer\n"); + if (!port->interrupt_in_buffer) goto probe_error; - } usb_fill_int_urb(port->interrupt_in_urb, dev, usb_rcvintpipe(dev, endpoint->bEndpointAddress), @@ -1017,20 +995,16 @@ static int usb_serial_probe(struct usb_interface *interface, endpoint = interrupt_out_endpoint[i]; port = serial->port[i]; port->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!port->interrupt_out_urb) { - dev_err(ddev, "No free urbs available\n"); + if (!port->interrupt_out_urb) goto probe_error; - } buffer_size = usb_endpoint_maxp(endpoint); port->interrupt_out_size = buffer_size; port->interrupt_out_endpointAddress = endpoint->bEndpointAddress; port->interrupt_out_buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!port->interrupt_out_buffer) { - dev_err(ddev, "Couldn't allocate interrupt_out_buffer\n"); + if (!port->interrupt_out_buffer) goto probe_error; - } usb_fill_int_urb(port->interrupt_out_urb, dev, usb_sndintpipe(dev, endpoint->bEndpointAddress), @@ -1119,13 +1093,15 @@ static void usb_serial_disconnect(struct usb_interface *interface) tty_vhangup(tty); tty_kref_put(tty); } - kill_traffic(port); + usb_serial_port_poison_urbs(port); + wake_up_interruptible(&port->port.delta_msr_wait); cancel_work_sync(&port->work); if (device_is_registered(&port->dev)) device_del(&port->dev); } } - serial->type->disconnect(serial); + if (serial->type->disconnect) + serial->type->disconnect(serial); /* let the last holder of this object cause it to be cleaned up */ usb_serial_put(serial); @@ -1140,6 +1116,11 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message) serial->suspending = 1; + /* + * serial->type->suspend() MUST return 0 in system sleep context, + * otherwise, the resume callback has to recover device from + * previous suspend failure. + */ if (serial->type->suspend) { r = serial->type->suspend(serial, message); if (r < 0) { @@ -1151,7 +1132,7 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message) for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; if (port) - kill_traffic(port); + usb_serial_port_poison_urbs(port); } err_out: @@ -1159,11 +1140,25 @@ err_out: } EXPORT_SYMBOL(usb_serial_suspend); +static void usb_serial_unpoison_port_urbs(struct usb_serial *serial) +{ + struct usb_serial_port *port; + int i; + + for (i = 0; i < serial->num_ports; ++i) { + port = serial->port[i]; + if (port) + usb_serial_port_unpoison_urbs(port); + } +} + int usb_serial_resume(struct usb_interface *intf) { struct usb_serial *serial = usb_get_intfdata(intf); int rv; + usb_serial_unpoison_port_urbs(serial); + serial->suspending = 0; if (serial->type->resume) rv = serial->type->resume(serial); @@ -1179,6 +1174,8 @@ static int usb_serial_reset_resume(struct usb_interface *intf) struct usb_serial *serial = usb_get_intfdata(intf); int rv; + usb_serial_unpoison_port_urbs(serial); + serial->suspending = 0; if (serial->type->reset_resume) rv = serial->type->reset_resume(serial); @@ -1315,12 +1312,12 @@ module_exit(usb_serial_exit); do { \ if (!type->function) { \ type->function = usb_serial_generic_##function; \ - pr_debug("Had to override the " #function \ - " usb serial operation with the generic one.");\ - } \ + pr_debug("%s: using generic " #function "\n", \ + type->driver.name); \ + } \ } while (0) -static void fixup_generic(struct usb_serial_driver *device) +static void usb_serial_operations_init(struct usb_serial_driver *device) { set_to_generic_if_null(device, open); set_to_generic_if_null(device, write); @@ -1329,8 +1326,6 @@ static void fixup_generic(struct usb_serial_driver *device) set_to_generic_if_null(device, chars_in_buffer); set_to_generic_if_null(device, read_bulk_callback); set_to_generic_if_null(device, write_bulk_callback); - set_to_generic_if_null(device, disconnect); - set_to_generic_if_null(device, release); set_to_generic_if_null(device, process_read_urb); set_to_generic_if_null(device, prepare_write_buffer); } @@ -1342,8 +1337,6 @@ static int usb_serial_register(struct usb_serial_driver *driver) if (usb_disabled()) return -ENODEV; - fixup_generic(driver); - if (!driver->description) driver->description = driver->driver.name; if (!driver->usb_driver) { @@ -1352,6 +1345,8 @@ static int usb_serial_register(struct usb_serial_driver *driver) return -EINVAL; } + usb_serial_operations_init(driver); + /* Add this device to our list of devices */ mutex_lock(&table_lock); list_add(&driver->driver_list, &usb_serial_driver_list); @@ -1469,7 +1464,6 @@ void usb_serial_deregister_drivers(struct usb_serial_driver *const serial_driver } EXPORT_SYMBOL_GPL(usb_serial_deregister_drivers); -/* Module information */ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index 571965aa1cc0..ece326ef63a0 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -421,20 +421,19 @@ void usb_wwan_close(struct usb_serial_port *port) portdata = usb_get_serial_port_data(port); - if (serial->dev) { - /* Stop reading/writing urbs */ - spin_lock_irq(&intfdata->susp_lock); - portdata->opened = 0; - spin_unlock_irq(&intfdata->susp_lock); + /* Stop reading/writing urbs */ + spin_lock_irq(&intfdata->susp_lock); + portdata->opened = 0; + spin_unlock_irq(&intfdata->susp_lock); - for (i = 0; i < N_IN_URB; i++) - usb_kill_urb(portdata->in_urbs[i]); - for (i = 0; i < N_OUT_URB; i++) - usb_kill_urb(portdata->out_urbs[i]); - /* balancing - important as an error cannot be handled*/ - usb_autopm_get_interface_no_resume(serial->interface); - serial->interface->needs_remote_wakeup = 0; - } + for (i = 0; i < N_IN_URB; i++) + usb_kill_urb(portdata->in_urbs[i]); + for (i = 0; i < N_OUT_URB; i++) + usb_kill_urb(portdata->out_urbs[i]); + + /* balancing - important as an error cannot be handled*/ + usb_autopm_get_interface_no_resume(serial->interface); + serial->interface->needs_remote_wakeup = 0; } EXPORT_SYMBOL(usb_wwan_close); diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 1129aa73c23e..7573ec8a084f 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -257,24 +257,18 @@ static void visor_close(struct usb_serial_port *port) { unsigned char *transfer_buffer; - /* shutdown our urbs */ usb_serial_generic_close(port); usb_kill_urb(port->interrupt_in_urb); - mutex_lock(&port->serial->disc_mutex); - if (!port->serial->disconnected) { - /* Try to send shutdown message, unless the device is gone */ - transfer_buffer = kmalloc(0x12, GFP_KERNEL); - if (transfer_buffer) { - usb_control_msg(port->serial->dev, + transfer_buffer = kmalloc(0x12, GFP_KERNEL); + if (!transfer_buffer) + return; + usb_control_msg(port->serial->dev, usb_rcvctrlpipe(port->serial->dev, 0), VISOR_CLOSE_NOTIFICATION, 0xc2, 0x0000, 0x0000, transfer_buffer, 0x12, 300); - kfree(transfer_buffer); - } - } - mutex_unlock(&port->serial->disc_mutex); + kfree(transfer_buffer); } static void visor_read_int_callback(struct urb *urb) diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c index ecea47877364..06a3d22db685 100644 --- a/drivers/usb/storage/isd200.c +++ b/drivers/usb/storage/isd200.c @@ -1457,8 +1457,7 @@ static int isd200_init_info(struct us_data *us) retStatus = ISD200_ERROR; else { info->id = kzalloc(ATA_ID_WORDS * 2, GFP_KERNEL); - info->RegsBuf = (unsigned char *) - kmalloc(sizeof(info->ATARegs), GFP_KERNEL); + info->RegsBuf = kmalloc(sizeof(info->ATARegs), GFP_KERNEL); info->srb.sense_buffer = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); if (!info->id || !info->RegsBuf || !info->srb.sense_buffer) { diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index cb79de61f4c8..26964895c88b 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -195,6 +195,7 @@ static int onetouch_connect_input(struct us_data *ss) pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress); maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe)); + maxp = min(maxp, ONETOUCH_PKT_LEN); onetouch = kzalloc(sizeof(struct usb_onetouch), GFP_KERNEL); input_dev = input_allocate_device(); @@ -245,8 +246,7 @@ static int onetouch_connect_input(struct us_data *ss) input_dev->open = usb_onetouch_open; input_dev->close = usb_onetouch_close; - usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data, - (maxp > 8 ? 8 : maxp), + usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data, maxp, usb_onetouch_irq, onetouch, endpoint->bInterval); onetouch->irq->transfer_dma = onetouch->data_dma; onetouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index da04a074e790..1799335288bd 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -496,6 +496,13 @@ UNUSUAL_DEV( 0x04e8, 0x5122, 0x0000, 0x9999, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_MAX_SECTORS_64 | US_FL_BULK_IGNORE_TAG), +/* Added by Dmitry Artamonow <mad_soft@inbox.ru> */ +UNUSUAL_DEV( 0x04e8, 0x5136, 0x0000, 0x9999, + "Samsung", + "YP-Z3", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_MAX_SECTORS_64), + /* Entry and supporting patch by Theodore Kilgore <kilgota@auburn.edu>. * Device uses standards-violating 32-byte Bulk Command Block Wrappers and * reports itself as "Proprietary SCSI Bulk." Cf. device entry 0x084d:0x0011. diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c index ce310170829f..7ed3b039dbe8 100644 --- a/drivers/usb/usb-skeleton.c +++ b/drivers/usb/usb-skeleton.c @@ -61,11 +61,10 @@ struct usb_skel { __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */ int errors; /* the last request tanked */ bool ongoing_read; /* a read is going on */ - bool processed_urb; /* indicates we haven't processed the urb */ spinlock_t err_lock; /* lock for errors */ struct kref kref; struct mutex io_mutex; /* synchronize I/O with disconnect */ - struct completion bulk_in_completion; /* to wait for an ongoing read */ + wait_queue_head_t bulk_in_wait; /* to wait for an ongoing read */ }; #define to_skel_dev(d) container_of(d, struct usb_skel, kref) @@ -185,7 +184,7 @@ static void skel_read_bulk_callback(struct urb *urb) dev->ongoing_read = 0; spin_unlock(&dev->err_lock); - complete(&dev->bulk_in_completion); + wake_up_interruptible(&dev->bulk_in_wait); } static int skel_do_read_io(struct usb_skel *dev, size_t count) @@ -206,13 +205,16 @@ static int skel_do_read_io(struct usb_skel *dev, size_t count) dev->ongoing_read = 1; spin_unlock_irq(&dev->err_lock); + /* submit bulk in urb, which means no data to deliver */ + dev->bulk_in_filled = 0; + dev->bulk_in_copied = 0; + /* do it */ rv = usb_submit_urb(dev->bulk_in_urb, GFP_KERNEL); if (rv < 0) { dev_err(&dev->interface->dev, "%s - failed submitting read urb, error %d\n", __func__, rv); - dev->bulk_in_filled = 0; rv = (rv == -ENOMEM) ? rv : -EIO; spin_lock_irq(&dev->err_lock); dev->ongoing_read = 0; @@ -261,25 +263,9 @@ retry: * IO may take forever * hence wait in an interruptible state */ - rv = wait_for_completion_interruptible(&dev->bulk_in_completion); + rv = wait_event_interruptible(dev->bulk_in_wait, (!dev->ongoing_read)); if (rv < 0) goto exit; - /* - * by waiting we also semiprocessed the urb - * we must finish now - */ - dev->bulk_in_copied = 0; - dev->processed_urb = 1; - } - - if (!dev->processed_urb) { - /* - * the URB hasn't been processed - * do it now - */ - wait_for_completion(&dev->bulk_in_completion); - dev->bulk_in_copied = 0; - dev->processed_urb = 1; } /* errors must be reported */ @@ -289,8 +275,6 @@ retry: dev->errors = 0; /* to preserve notifications about reset */ rv = (rv == -EPIPE) ? rv : -EIO; - /* no data to deliver */ - dev->bulk_in_filled = 0; /* report it */ goto exit; } @@ -526,7 +510,7 @@ static int skel_probe(struct usb_interface *interface, mutex_init(&dev->io_mutex); spin_lock_init(&dev->err_lock); init_usb_anchor(&dev->submitted); - init_completion(&dev->bulk_in_completion); + init_waitqueue_head(&dev->bulk_in_wait); dev->udev = usb_get_dev(interface_to_usbdev(interface)); dev->interface = interface; diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c index 964ff22bf281..aeb00fc2d3be 100644 --- a/drivers/vfio/pci/vfio_pci_config.c +++ b/drivers/vfio/pci/vfio_pci_config.c @@ -27,6 +27,7 @@ #include <linux/pci.h> #include <linux/uaccess.h> #include <linux/vfio.h> +#include <linux/slab.h> #include "vfio_pci_private.h" diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c index 3639371fa697..a96509187deb 100644 --- a/drivers/vfio/pci/vfio_pci_intrs.c +++ b/drivers/vfio/pci/vfio_pci_intrs.c @@ -22,6 +22,7 @@ #include <linux/vfio.h> #include <linux/wait.h> #include <linux/workqueue.h> +#include <linux/slab.h> #include "vfio_pci_private.h" diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 959b1cd89e6a..ec6fb3fa59bb 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -339,7 +339,8 @@ static void handle_tx(struct vhost_net *net) msg.msg_controllen = 0; ubufs = NULL; } else { - struct ubuf_info *ubuf = &vq->ubuf_info[head]; + struct ubuf_info *ubuf; + ubuf = vq->ubuf_info + vq->upend_idx; vq->heads[vq->upend_idx].len = VHOST_DMA_IN_PROGRESS; diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c index 9951297b2427..2968b4934659 100644 --- a/drivers/vhost/tcm_vhost.c +++ b/drivers/vhost/tcm_vhost.c @@ -60,6 +60,15 @@ enum { VHOST_SCSI_VQ_IO = 2, }; +/* + * VIRTIO_RING_F_EVENT_IDX seems broken. Not sure the bug is in + * kernel but disabling it helps. + * TODO: debug and remove the workaround. + */ +enum { + VHOST_SCSI_FEATURES = VHOST_FEATURES & (~VIRTIO_RING_F_EVENT_IDX) +}; + #define VHOST_SCSI_MAX_TARGET 256 #define VHOST_SCSI_MAX_VQ 128 @@ -850,7 +859,7 @@ static int vhost_scsi_clear_endpoint( for (index = 0; index < vs->dev.nvqs; ++index) { if (!vhost_vq_access_ok(&vs->vqs[index])) { ret = -EFAULT; - goto err; + goto err_dev; } } for (i = 0; i < VHOST_SCSI_MAX_TARGET; i++) { @@ -860,10 +869,11 @@ static int vhost_scsi_clear_endpoint( if (!tv_tpg) continue; + mutex_lock(&tv_tpg->tv_tpg_mutex); tv_tport = tv_tpg->tport; if (!tv_tport) { ret = -ENODEV; - goto err; + goto err_tpg; } if (strcmp(tv_tport->tport_name, t->vhost_wwpn)) { @@ -872,16 +882,19 @@ static int vhost_scsi_clear_endpoint( tv_tport->tport_name, tv_tpg->tport_tpgt, t->vhost_wwpn, t->vhost_tpgt); ret = -EINVAL; - goto err; + goto err_tpg; } tv_tpg->tv_tpg_vhost_count--; vs->vs_tpg[target] = NULL; vs->vs_endpoint = false; + mutex_unlock(&tv_tpg->tv_tpg_mutex); } mutex_unlock(&vs->dev.mutex); return 0; -err: +err_tpg: + mutex_unlock(&tv_tpg->tv_tpg_mutex); +err_dev: mutex_unlock(&vs->dev.mutex); return ret; } @@ -937,11 +950,12 @@ static void vhost_scsi_flush(struct vhost_scsi *vs) for (i = 0; i < VHOST_SCSI_MAX_VQ; i++) vhost_scsi_flush_vq(vs, i); + vhost_work_flush(&vs->dev, &vs->vs_completion_work); } static int vhost_scsi_set_features(struct vhost_scsi *vs, u64 features) { - if (features & ~VHOST_FEATURES) + if (features & ~VHOST_SCSI_FEATURES) return -EOPNOTSUPP; mutex_lock(&vs->dev.mutex); @@ -987,7 +1001,7 @@ static long vhost_scsi_ioctl(struct file *f, unsigned int ioctl, return -EFAULT; return 0; case VHOST_GET_FEATURES: - features = VHOST_FEATURES; + features = VHOST_SCSI_FEATURES; if (copy_to_user(featurep, &features, sizeof features)) return -EFAULT; return 0; diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 12cf5f31ee8f..025428e04c33 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -422,17 +422,22 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, = var->bits_per_pixel; break; case 16: + /* Older SOCs use IBGR:555 rather than BGR:565. */ + if (sinfo->have_intensity_bit) + var->green.length = 5; + else + var->green.length = 6; + if (sinfo->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) { - /* RGB:565 mode */ - var->red.offset = 11; + /* RGB:5X5 mode */ + var->red.offset = var->green.length + 5; var->blue.offset = 0; } else { - /* BGR:565 mode */ + /* BGR:5X5 mode */ var->red.offset = 0; - var->blue.offset = 11; + var->blue.offset = var->green.length + 5; } var->green.offset = 5; - var->green.length = 6; var->red.length = var->blue.length = 5; break; case 32: @@ -679,8 +684,7 @@ static int atmel_lcdfb_setcolreg(unsigned int regno, unsigned int red, case FB_VISUAL_PSEUDOCOLOR: if (regno < 256) { - if (cpu_is_at91sam9261() || cpu_is_at91sam9263() - || cpu_is_at91sam9rl()) { + if (sinfo->have_intensity_bit) { /* old style I+BGR:555 */ val = ((red >> 11) & 0x001f); val |= ((green >> 6) & 0x03e0); @@ -870,6 +874,10 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev) } sinfo->info = info; sinfo->pdev = pdev; + if (cpu_is_at91sam9261() || cpu_is_at91sam9263() || + cpu_is_at91sam9rl()) { + sinfo->have_intensity_bit = true; + } strcpy(info->fix.id, sinfo->pdev->name); info->flags = ATMEL_LCDFB_FBINFO_DEFAULT; diff --git a/drivers/video/ep93xx-fb.c b/drivers/video/ep93xx-fb.c index 3f2519d30715..e06cd5d90c97 100644 --- a/drivers/video/ep93xx-fb.c +++ b/drivers/video/ep93xx-fb.c @@ -23,6 +23,7 @@ #include <linux/slab.h> #include <linux/clk.h> #include <linux/fb.h> +#include <linux/io.h> #include <linux/platform_data/video-ep93xx.h> diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index 755556ca5b2d..45169cbaba6e 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -169,6 +169,7 @@ struct mxsfb_info { unsigned dotclk_delay; const struct mxsfb_devdata *devdata; int mapped; + u32 sync; }; #define mxsfb_is_v3(host) (host->devdata->ipversion == 3) @@ -456,9 +457,9 @@ static int mxsfb_set_par(struct fb_info *fb_info) vdctrl0 |= VDCTRL0_HSYNC_ACT_HIGH; if (fb_info->var.sync & FB_SYNC_VERT_HIGH_ACT) vdctrl0 |= VDCTRL0_VSYNC_ACT_HIGH; - if (fb_info->var.sync & FB_SYNC_DATA_ENABLE_HIGH_ACT) + if (host->sync & MXSFB_SYNC_DATA_ENABLE_HIGH_ACT) vdctrl0 |= VDCTRL0_ENABLE_ACT_HIGH; - if (fb_info->var.sync & FB_SYNC_DOTCLK_FAILING_ACT) + if (host->sync & MXSFB_SYNC_DOTCLK_FAILING_ACT) vdctrl0 |= VDCTRL0_DOTCLK_ACT_FAILING; writel(vdctrl0, host->base + LCDC_VDCTRL0); @@ -861,6 +862,8 @@ static int mxsfb_probe(struct platform_device *pdev) INIT_LIST_HEAD(&fb_info->modelist); + host->sync = pdata->sync; + ret = mxsfb_init_fbinfo(host); if (ret != 0) goto error_init_fb; diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c index e31f5b33b501..d40612c31a98 100644 --- a/drivers/video/omap/omapfb_main.c +++ b/drivers/video/omap/omapfb_main.c @@ -32,6 +32,8 @@ #include <linux/omap-dma.h> +#include <mach/hardware.h> + #include "omapfb.h" #include "lcdc.h" diff --git a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c index 6b6643911d29..048c98381ef6 100644 --- a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c +++ b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c @@ -63,6 +63,9 @@ struct tpo_td043_device { u32 power_on_resume:1; }; +/* used to pass spi_device from SPI to DSS portion of the driver */ +static struct tpo_td043_device *g_tpo_td043; + static int tpo_td043_write(struct spi_device *spi, u8 addr, u8 data) { struct spi_message m; @@ -403,7 +406,7 @@ static void tpo_td043_disable(struct omap_dss_device *dssdev) static int tpo_td043_probe(struct omap_dss_device *dssdev) { - struct tpo_td043_device *tpo_td043 = dev_get_drvdata(&dssdev->dev); + struct tpo_td043_device *tpo_td043 = g_tpo_td043; int nreset_gpio = dssdev->reset_gpio; int ret = 0; @@ -440,6 +443,8 @@ static int tpo_td043_probe(struct omap_dss_device *dssdev) if (ret) dev_warn(&dssdev->dev, "failed to create sysfs files\n"); + dev_set_drvdata(&dssdev->dev, tpo_td043); + return 0; fail_gpio_req: @@ -505,6 +510,9 @@ static int tpo_td043_spi_probe(struct spi_device *spi) return -ENODEV; } + if (g_tpo_td043 != NULL) + return -EBUSY; + spi->bits_per_word = 16; spi->mode = SPI_MODE_0; @@ -521,7 +529,7 @@ static int tpo_td043_spi_probe(struct spi_device *spi) tpo_td043->spi = spi; tpo_td043->nreset_gpio = dssdev->reset_gpio; dev_set_drvdata(&spi->dev, tpo_td043); - dev_set_drvdata(&dssdev->dev, tpo_td043); + g_tpo_td043 = tpo_td043; omap_dss_register_driver(&tpo_td043_driver); @@ -534,6 +542,7 @@ static int tpo_td043_spi_remove(struct spi_device *spi) omap_dss_unregister_driver(&tpo_td043_driver); kfree(tpo_td043); + g_tpo_td043 = NULL; return 0; } diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c index d7d66ef5cb58..7f791aeda4d2 100644 --- a/drivers/video/omap2/dss/dss_features.c +++ b/drivers/video/omap2/dss/dss_features.c @@ -202,12 +202,10 @@ static const enum omap_dss_output_id omap3630_dss_supported_outputs[] = { static const enum omap_dss_output_id omap4_dss_supported_outputs[] = { /* OMAP_DSS_CHANNEL_LCD */ - OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI | - OMAP_DSS_OUTPUT_DSI1, + OMAP_DSS_OUTPUT_DBI | OMAP_DSS_OUTPUT_DSI1, /* OMAP_DSS_CHANNEL_DIGIT */ - OMAP_DSS_OUTPUT_VENC | OMAP_DSS_OUTPUT_HDMI | - OMAP_DSS_OUTPUT_DPI, + OMAP_DSS_OUTPUT_VENC | OMAP_DSS_OUTPUT_HDMI, /* OMAP_DSS_CHANNEL_LCD2 */ OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI | diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c index e3b8f757d2d3..0e9d8c479c35 100644 --- a/drivers/watchdog/sp5100_tco.c +++ b/drivers/watchdog/sp5100_tco.c @@ -40,13 +40,12 @@ #include "sp5100_tco.h" /* Module and version information */ -#define TCO_VERSION "0.03" +#define TCO_VERSION "0.05" #define TCO_MODULE_NAME "SP5100 TCO timer" #define TCO_DRIVER_NAME TCO_MODULE_NAME ", v" TCO_VERSION /* internal variables */ static u32 tcobase_phys; -static u32 resbase_phys; static u32 tco_wdt_fired; static void __iomem *tcobase; static unsigned int pm_iobase; @@ -54,10 +53,6 @@ static DEFINE_SPINLOCK(tco_lock); /* Guards the hardware */ static unsigned long timer_alive; static char tco_expect_close; static struct pci_dev *sp5100_tco_pci; -static struct resource wdt_res = { - .name = "Watchdog Timer", - .flags = IORESOURCE_MEM, -}; /* the watchdog platform device */ static struct platform_device *sp5100_tco_platform_device; @@ -75,12 +70,6 @@ module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started." " (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); -static unsigned int force_addr; -module_param(force_addr, uint, 0); -MODULE_PARM_DESC(force_addr, "Force the use of specified MMIO address." - " ONLY USE THIS PARAMETER IF YOU REALLY KNOW" - " WHAT YOU ARE DOING (default=none)"); - /* * Some TCO specific functions */ @@ -176,39 +165,6 @@ static void tco_timer_enable(void) } } -static void tco_timer_disable(void) -{ - int val; - - if (sp5100_tco_pci->revision >= 0x40) { - /* For SB800 or later */ - /* Enable watchdog decode bit and Disable watchdog timer */ - outb(SB800_PM_WATCHDOG_CONTROL, SB800_IO_PM_INDEX_REG); - val = inb(SB800_IO_PM_DATA_REG); - val |= SB800_PCI_WATCHDOG_DECODE_EN; - val |= SB800_PM_WATCHDOG_DISABLE; - outb(val, SB800_IO_PM_DATA_REG); - } else { - /* For SP5100 or SB7x0 */ - /* Enable watchdog decode bit */ - pci_read_config_dword(sp5100_tco_pci, - SP5100_PCI_WATCHDOG_MISC_REG, - &val); - - val |= SP5100_PCI_WATCHDOG_DECODE_EN; - - pci_write_config_dword(sp5100_tco_pci, - SP5100_PCI_WATCHDOG_MISC_REG, - val); - - /* Disable Watchdog timer */ - outb(SP5100_PM_WATCHDOG_CONTROL, SP5100_IO_PM_INDEX_REG); - val = inb(SP5100_IO_PM_DATA_REG); - val |= SP5100_PM_WATCHDOG_DISABLE; - outb(val, SP5100_IO_PM_DATA_REG); - } -} - /* * /dev/watchdog handling */ @@ -361,7 +317,7 @@ static unsigned char sp5100_tco_setupdevice(void) { struct pci_dev *dev = NULL; const char *dev_name = NULL; - u32 val, tmp_val; + u32 val; u32 index_reg, data_reg, base_addr; /* Match the PCI device */ @@ -459,63 +415,8 @@ static unsigned char sp5100_tco_setupdevice(void) } else pr_debug("SBResource_MMIO is disabled(0x%04x)\n", val); - /* - * Lastly re-programming the watchdog timer MMIO address, - * This method is a last resort... - * - * Before re-programming, to ensure that the watchdog timer - * is disabled, disable the watchdog timer. - */ - tco_timer_disable(); - - if (force_addr) { - /* - * Force the use of watchdog timer MMIO address, and aligned to - * 8byte boundary. - */ - force_addr &= ~0x7; - val = force_addr; - - pr_info("Force the use of 0x%04x as MMIO address\n", val); - } else { - /* - * Get empty slot into the resource tree for watchdog timer. - */ - if (allocate_resource(&iomem_resource, - &wdt_res, - SP5100_WDT_MEM_MAP_SIZE, - 0xf0000000, - 0xfffffff8, - 0x8, - NULL, - NULL)) { - pr_err("MMIO allocation failed\n"); - goto unreg_region; - } - - val = resbase_phys = wdt_res.start; - pr_debug("Got 0x%04x from resource tree\n", val); - } - - /* Restore to the low three bits */ - outb(base_addr+0, index_reg); - tmp_val = val | (inb(data_reg) & 0x7); - - /* Re-programming the watchdog timer base address */ - outb(base_addr+0, index_reg); - outb((tmp_val >> 0) & 0xff, data_reg); - outb(base_addr+1, index_reg); - outb((tmp_val >> 8) & 0xff, data_reg); - outb(base_addr+2, index_reg); - outb((tmp_val >> 16) & 0xff, data_reg); - outb(base_addr+3, index_reg); - outb((tmp_val >> 24) & 0xff, data_reg); - - if (!request_mem_region_exclusive(val, SP5100_WDT_MEM_MAP_SIZE, - dev_name)) { - pr_err("MMIO address 0x%04x already in use\n", val); - goto unreg_resource; - } + pr_notice("failed to find MMIO address, giving up.\n"); + goto unreg_region; setup_wdt: tcobase_phys = val; @@ -555,9 +456,6 @@ setup_wdt: unreg_mem_region: release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE); -unreg_resource: - if (resbase_phys) - release_resource(&wdt_res); unreg_region: release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE); exit: @@ -567,7 +465,6 @@ exit: static int sp5100_tco_init(struct platform_device *dev) { int ret; - char addr_str[16]; /* * Check whether or not the hardware watchdog is there. If found, then @@ -599,23 +496,14 @@ static int sp5100_tco_init(struct platform_device *dev) clear_bit(0, &timer_alive); /* Show module parameters */ - if (force_addr == tcobase_phys) - /* The force_addr is vaild */ - sprintf(addr_str, "0x%04x", force_addr); - else - strcpy(addr_str, "none"); - - pr_info("initialized (0x%p). heartbeat=%d sec (nowayout=%d, " - "force_addr=%s)\n", - tcobase, heartbeat, nowayout, addr_str); + pr_info("initialized (0x%p). heartbeat=%d sec (nowayout=%d)\n", + tcobase, heartbeat, nowayout); return 0; exit: iounmap(tcobase); release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE); - if (resbase_phys) - release_resource(&wdt_res); release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE); return ret; } @@ -630,8 +518,6 @@ static void sp5100_tco_cleanup(void) misc_deregister(&sp5100_tco_miscdev); iounmap(tcobase); release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE); - if (resbase_phys) - release_resource(&wdt_res); release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE); } diff --git a/drivers/watchdog/sp5100_tco.h b/drivers/watchdog/sp5100_tco.h index 71594a0c14b7..2b28c00da0df 100644 --- a/drivers/watchdog/sp5100_tco.h +++ b/drivers/watchdog/sp5100_tco.h @@ -57,7 +57,7 @@ #define SB800_PM_WATCHDOG_DISABLE (1 << 2) #define SB800_PM_WATCHDOG_SECOND_RES (3 << 0) #define SB800_ACPI_MMIO_DECODE_EN (1 << 0) -#define SB800_ACPI_MMIO_SEL (1 << 2) +#define SB800_ACPI_MMIO_SEL (1 << 1) #define SB800_PM_WDT_MMIO_OFFSET 0xB00 diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 5a32232cf7c1..67af155cf602 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -182,7 +182,7 @@ config XEN_PRIVCMD config XEN_STUB bool "Xen stub drivers" - depends on XEN && X86_64 + depends on XEN && X86_64 && BROKEN default n help Allow kernel to install stub drivers, to reserve space for Xen drivers, diff --git a/drivers/xen/events.c b/drivers/xen/events.c index d17aa41a9041..aa85881d17b2 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -403,11 +403,23 @@ static void unmask_evtchn(int port) if (unlikely((cpu != cpu_from_evtchn(port)))) do_hypercall = 1; - else + else { + /* + * Need to clear the mask before checking pending to + * avoid a race with an event becoming pending. + * + * EVTCHNOP_unmask will only trigger an upcall if the + * mask bit was set, so if a hypercall is needed + * remask the event. + */ + sync_clear_bit(port, BM(&s->evtchn_mask[0])); evtchn_pending = sync_test_bit(port, BM(&s->evtchn_pending[0])); - if (unlikely(evtchn_pending && xen_hvm_domain())) - do_hypercall = 1; + if (unlikely(evtchn_pending && xen_hvm_domain())) { + sync_set_bit(port, BM(&s->evtchn_mask[0])); + do_hypercall = 1; + } + } /* Slow path (hypercall) if this is a non-local port or if this is * an hvm domain and an event is pending (hvm domains don't have @@ -418,8 +430,6 @@ static void unmask_evtchn(int port) } else { struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu); - sync_clear_bit(port, BM(&s->evtchn_mask[0])); - /* * The following is basically the equivalent of * 'hw_resend_irq'. Just like a real IO-APIC we 'lose diff --git a/drivers/xen/fallback.c b/drivers/xen/fallback.c index 0ef7c4d40f86..b04fb64c5a91 100644 --- a/drivers/xen/fallback.c +++ b/drivers/xen/fallback.c @@ -44,7 +44,7 @@ int xen_event_channel_op_compat(int cmd, void *arg) } EXPORT_SYMBOL_GPL(xen_event_channel_op_compat); -int HYPERVISOR_physdev_op_compat(int cmd, void *arg) +int xen_physdev_op_compat(int cmd, void *arg) { struct physdev_op op; int rc; @@ -78,3 +78,4 @@ int HYPERVISOR_physdev_op_compat(int cmd, void *arg) return rc; } +EXPORT_SYMBOL_GPL(xen_physdev_op_compat); diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c index f3278a6603ca..90e34ac7e522 100644 --- a/drivers/xen/xen-acpi-processor.c +++ b/drivers/xen/xen-acpi-processor.c @@ -505,6 +505,9 @@ static int __init xen_acpi_processor_init(void) pr = per_cpu(processors, i); perf = per_cpu_ptr(acpi_perf_data, i); + if (!pr) + continue; + pr->performance = perf; rc = acpi_processor_get_performance_info(pr); if (rc) diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c index 9204126f1560..a2278ba7fb27 100644 --- a/drivers/xen/xen-pciback/pci_stub.c +++ b/drivers/xen/xen-pciback/pci_stub.c @@ -17,6 +17,7 @@ #include <xen/events.h> #include <asm/xen/pci.h> #include <asm/xen/hypervisor.h> +#include <xen/interface/physdev.h> #include "pciback.h" #include "conf_space.h" #include "conf_space_quirks.h" @@ -85,37 +86,52 @@ static struct pcistub_device *pcistub_device_alloc(struct pci_dev *dev) static void pcistub_device_release(struct kref *kref) { struct pcistub_device *psdev; + struct pci_dev *dev; struct xen_pcibk_dev_data *dev_data; psdev = container_of(kref, struct pcistub_device, kref); - dev_data = pci_get_drvdata(psdev->dev); + dev = psdev->dev; + dev_data = pci_get_drvdata(dev); - dev_dbg(&psdev->dev->dev, "pcistub_device_release\n"); + dev_dbg(&dev->dev, "pcistub_device_release\n"); - xen_unregister_device_domain_owner(psdev->dev); + xen_unregister_device_domain_owner(dev); /* Call the reset function which does not take lock as this * is called from "unbind" which takes a device_lock mutex. */ - __pci_reset_function_locked(psdev->dev); - if (pci_load_and_free_saved_state(psdev->dev, - &dev_data->pci_saved_state)) { - dev_dbg(&psdev->dev->dev, "Could not reload PCI state\n"); - } else - pci_restore_state(psdev->dev); + __pci_reset_function_locked(dev); + if (pci_load_and_free_saved_state(dev, &dev_data->pci_saved_state)) + dev_dbg(&dev->dev, "Could not reload PCI state\n"); + else + pci_restore_state(dev); + + if (pci_find_capability(dev, PCI_CAP_ID_MSIX)) { + struct physdev_pci_device ppdev = { + .seg = pci_domain_nr(dev->bus), + .bus = dev->bus->number, + .devfn = dev->devfn + }; + int err = HYPERVISOR_physdev_op(PHYSDEVOP_release_msix, + &ppdev); + + if (err) + dev_warn(&dev->dev, "MSI-X release failed (%d)\n", + err); + } /* Disable the device */ - xen_pcibk_reset_device(psdev->dev); + xen_pcibk_reset_device(dev); kfree(dev_data); - pci_set_drvdata(psdev->dev, NULL); + pci_set_drvdata(dev, NULL); /* Clean-up the device */ - xen_pcibk_config_free_dyn_fields(psdev->dev); - xen_pcibk_config_free_dev(psdev->dev); + xen_pcibk_config_free_dyn_fields(dev); + xen_pcibk_config_free_dev(dev); - psdev->dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED; - pci_dev_put(psdev->dev); + dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED; + pci_dev_put(dev); kfree(psdev); } @@ -355,6 +371,19 @@ static int pcistub_init_device(struct pci_dev *dev) if (err) goto config_release; + if (pci_find_capability(dev, PCI_CAP_ID_MSIX)) { + struct physdev_pci_device ppdev = { + .seg = pci_domain_nr(dev->bus), + .bus = dev->bus->number, + .devfn = dev->devfn + }; + + err = HYPERVISOR_physdev_op(PHYSDEVOP_prepare_msix, &ppdev); + if (err) + dev_err(&dev->dev, "MSI-X preparation failed (%d)\n", + err); + } + /* We need the device active to save the state. */ dev_dbg(&dev->dev, "save state of device\n"); pci_save_state(dev); |
