diff options
Diffstat (limited to 'drivers')
70 files changed, 1482 insertions, 352 deletions
diff --git a/drivers/Makefile b/drivers/Makefile index f0afdfb3c7df..194d20bee7dc 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -21,7 +21,7 @@ obj-y += video/ obj-y += idle/ # IPMI must come before ACPI in order to provide IPMI opregion support -obj-$(CONFIG_IPMI_HANDLER) += char/ipmi/ +obj-y += char/ipmi/ obj-$(CONFIG_ACPI) += acpi/ obj-$(CONFIG_SFI) += sfi/ diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index abb71628ab61..7b274ff4632c 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -415,15 +415,15 @@ struct rbd_device { }; /* - * Flag bits for rbd_dev->flags. If atomicity is required, - * rbd_dev->lock is used to protect access. - * - * Currently, only the "removing" flag (which is coupled with the - * "open_count" field) requires atomic access. + * Flag bits for rbd_dev->flags: + * - REMOVING (which is coupled with rbd_dev->open_count) is protected + * by rbd_dev->lock + * - BLACKLISTED is protected by rbd_dev->lock_rwsem */ enum rbd_dev_flags { RBD_DEV_FLAG_EXISTS, /* mapped snapshot has not been deleted */ RBD_DEV_FLAG_REMOVING, /* this mapping is being removed */ + RBD_DEV_FLAG_BLACKLISTED, /* our ceph_client is blacklisted */ }; static DEFINE_MUTEX(client_mutex); /* Serialize client creation */ @@ -3926,6 +3926,7 @@ static void rbd_reregister_watch(struct work_struct *work) struct rbd_device *rbd_dev = container_of(to_delayed_work(work), struct rbd_device, watch_dwork); bool was_lock_owner = false; + bool need_to_wake = false; int ret; dout("%s rbd_dev %p\n", __func__, rbd_dev); @@ -3935,19 +3936,27 @@ static void rbd_reregister_watch(struct work_struct *work) was_lock_owner = rbd_release_lock(rbd_dev); mutex_lock(&rbd_dev->watch_mutex); - if (rbd_dev->watch_state != RBD_WATCH_STATE_ERROR) - goto fail_unlock; + if (rbd_dev->watch_state != RBD_WATCH_STATE_ERROR) { + mutex_unlock(&rbd_dev->watch_mutex); + goto out; + } ret = __rbd_register_watch(rbd_dev); if (ret) { rbd_warn(rbd_dev, "failed to reregister watch: %d", ret); - if (ret != -EBLACKLISTED) + if (ret == -EBLACKLISTED || ret == -ENOENT) { + set_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags); + need_to_wake = true; + } else { queue_delayed_work(rbd_dev->task_wq, &rbd_dev->watch_dwork, RBD_RETRY_DELAY); - goto fail_unlock; + } + mutex_unlock(&rbd_dev->watch_mutex); + goto out; } + need_to_wake = true; rbd_dev->watch_state = RBD_WATCH_STATE_REGISTERED; rbd_dev->watch_cookie = rbd_dev->watch_handle->linger_id; mutex_unlock(&rbd_dev->watch_mutex); @@ -3963,13 +3972,10 @@ static void rbd_reregister_watch(struct work_struct *work) ret); } +out: up_write(&rbd_dev->lock_rwsem); - wake_requests(rbd_dev, true); - return; - -fail_unlock: - mutex_unlock(&rbd_dev->watch_mutex); - up_write(&rbd_dev->lock_rwsem); + if (need_to_wake) + wake_requests(rbd_dev, true); } /* @@ -4074,7 +4080,9 @@ static void rbd_wait_state_locked(struct rbd_device *rbd_dev) up_read(&rbd_dev->lock_rwsem); schedule(); down_read(&rbd_dev->lock_rwsem); - } while (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED); + } while (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED && + !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)); + finish_wait(&rbd_dev->lock_waitq, &wait); } @@ -4166,8 +4174,16 @@ static void rbd_queue_workfn(struct work_struct *work) if (must_be_locked) { down_read(&rbd_dev->lock_rwsem); - if (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED) + if (rbd_dev->lock_state != RBD_LOCK_STATE_LOCKED && + !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)) rbd_wait_state_locked(rbd_dev); + + WARN_ON((rbd_dev->lock_state == RBD_LOCK_STATE_LOCKED) ^ + !test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)); + if (test_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags)) { + result = -EBLACKLISTED; + goto err_unlock; + } } img_request = rbd_img_request_create(rbd_dev, offset, length, op_type, diff --git a/drivers/char/ipmi/Kconfig b/drivers/char/ipmi/Kconfig index 5a9350b1069a..7f816655cbbf 100644 --- a/drivers/char/ipmi/Kconfig +++ b/drivers/char/ipmi/Kconfig @@ -76,3 +76,11 @@ config IPMI_POWEROFF the IPMI management controller is capable of this. endif # IPMI_HANDLER + +config ASPEED_BT_IPMI_BMC + depends on ARCH_ASPEED + tristate "BT IPMI bmc driver" + help + Provides a driver for the BT (Block Transfer) IPMI interface + found on Aspeed SOCs (AST2400 and AST2500). The driver + implements the BMC side of the BT interface. diff --git a/drivers/char/ipmi/Makefile b/drivers/char/ipmi/Makefile index f3ffde1f5f1f..0d98cd91def1 100644 --- a/drivers/char/ipmi/Makefile +++ b/drivers/char/ipmi/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_IPMI_SSIF) += ipmi_ssif.o obj-$(CONFIG_IPMI_POWERNV) += ipmi_powernv.o obj-$(CONFIG_IPMI_WATCHDOG) += ipmi_watchdog.o obj-$(CONFIG_IPMI_POWEROFF) += ipmi_poweroff.o +obj-$(CONFIG_ASPEED_BT_IPMI_BMC) += bt-bmc.o diff --git a/drivers/char/ipmi/bt-bmc.c b/drivers/char/ipmi/bt-bmc.c new file mode 100644 index 000000000000..b49e61320952 --- /dev/null +++ b/drivers/char/ipmi/bt-bmc.c @@ -0,0 +1,505 @@ +/* + * Copyright (c) 2015-2016, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify 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/atomic.h> +#include <linux/bt-bmc.h> +#include <linux/errno.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/miscdevice.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/poll.h> +#include <linux/sched.h> +#include <linux/timer.h> + +/* + * This is a BMC device used to communicate to the host + */ +#define DEVICE_NAME "ipmi-bt-host" + +#define BT_IO_BASE 0xe4 +#define BT_IRQ 10 + +#define BT_CR0 0x0 +#define BT_CR0_IO_BASE 16 +#define BT_CR0_IRQ 12 +#define BT_CR0_EN_CLR_SLV_RDP 0x8 +#define BT_CR0_EN_CLR_SLV_WRP 0x4 +#define BT_CR0_ENABLE_IBT 0x1 +#define BT_CR1 0x4 +#define BT_CR1_IRQ_H2B 0x01 +#define BT_CR1_IRQ_HBUSY 0x40 +#define BT_CR2 0x8 +#define BT_CR2_IRQ_H2B 0x01 +#define BT_CR2_IRQ_HBUSY 0x40 +#define BT_CR3 0xc +#define BT_CTRL 0x10 +#define BT_CTRL_B_BUSY 0x80 +#define BT_CTRL_H_BUSY 0x40 +#define BT_CTRL_OEM0 0x20 +#define BT_CTRL_SMS_ATN 0x10 +#define BT_CTRL_B2H_ATN 0x08 +#define BT_CTRL_H2B_ATN 0x04 +#define BT_CTRL_CLR_RD_PTR 0x02 +#define BT_CTRL_CLR_WR_PTR 0x01 +#define BT_BMC2HOST 0x14 +#define BT_INTMASK 0x18 +#define BT_INTMASK_B2H_IRQEN 0x01 +#define BT_INTMASK_B2H_IRQ 0x02 +#define BT_INTMASK_BMC_HWRST 0x80 + +#define BT_BMC_BUFFER_SIZE 256 + +struct bt_bmc { + struct device dev; + struct miscdevice miscdev; + void __iomem *base; + int irq; + wait_queue_head_t queue; + struct timer_list poll_timer; + struct mutex mutex; +}; + +static atomic_t open_count = ATOMIC_INIT(0); + +static u8 bt_inb(struct bt_bmc *bt_bmc, int reg) +{ + return ioread8(bt_bmc->base + reg); +} + +static void bt_outb(struct bt_bmc *bt_bmc, u8 data, int reg) +{ + iowrite8(data, bt_bmc->base + reg); +} + +static void clr_rd_ptr(struct bt_bmc *bt_bmc) +{ + bt_outb(bt_bmc, BT_CTRL_CLR_RD_PTR, BT_CTRL); +} + +static void clr_wr_ptr(struct bt_bmc *bt_bmc) +{ + bt_outb(bt_bmc, BT_CTRL_CLR_WR_PTR, BT_CTRL); +} + +static void clr_h2b_atn(struct bt_bmc *bt_bmc) +{ + bt_outb(bt_bmc, BT_CTRL_H2B_ATN, BT_CTRL); +} + +static void set_b_busy(struct bt_bmc *bt_bmc) +{ + if (!(bt_inb(bt_bmc, BT_CTRL) & BT_CTRL_B_BUSY)) + bt_outb(bt_bmc, BT_CTRL_B_BUSY, BT_CTRL); +} + +static void clr_b_busy(struct bt_bmc *bt_bmc) +{ + if (bt_inb(bt_bmc, BT_CTRL) & BT_CTRL_B_BUSY) + bt_outb(bt_bmc, BT_CTRL_B_BUSY, BT_CTRL); +} + +static void set_b2h_atn(struct bt_bmc *bt_bmc) +{ + bt_outb(bt_bmc, BT_CTRL_B2H_ATN, BT_CTRL); +} + +static u8 bt_read(struct bt_bmc *bt_bmc) +{ + return bt_inb(bt_bmc, BT_BMC2HOST); +} + +static ssize_t bt_readn(struct bt_bmc *bt_bmc, u8 *buf, size_t n) +{ + int i; + + for (i = 0; i < n; i++) + buf[i] = bt_read(bt_bmc); + return n; +} + +static void bt_write(struct bt_bmc *bt_bmc, u8 c) +{ + bt_outb(bt_bmc, c, BT_BMC2HOST); +} + +static ssize_t bt_writen(struct bt_bmc *bt_bmc, u8 *buf, size_t n) +{ + int i; + + for (i = 0; i < n; i++) + bt_write(bt_bmc, buf[i]); + return n; +} + +static void set_sms_atn(struct bt_bmc *bt_bmc) +{ + bt_outb(bt_bmc, BT_CTRL_SMS_ATN, BT_CTRL); +} + +static struct bt_bmc *file_bt_bmc(struct file *file) +{ + return container_of(file->private_data, struct bt_bmc, miscdev); +} + +static int bt_bmc_open(struct inode *inode, struct file *file) +{ + struct bt_bmc *bt_bmc = file_bt_bmc(file); + + if (atomic_inc_return(&open_count) == 1) { + clr_b_busy(bt_bmc); + return 0; + } + + atomic_dec(&open_count); + return -EBUSY; +} + +/* + * The BT (Block Transfer) interface means that entire messages are + * buffered by the host before a notification is sent to the BMC that + * there is data to be read. The first byte is the length and the + * message data follows. The read operation just tries to capture the + * whole before returning it to userspace. + * + * BT Message format : + * + * Byte 1 Byte 2 Byte 3 Byte 4 Byte 5:N + * Length NetFn/LUN Seq Cmd Data + * + */ +static ssize_t bt_bmc_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct bt_bmc *bt_bmc = file_bt_bmc(file); + u8 len; + int len_byte = 1; + u8 kbuffer[BT_BMC_BUFFER_SIZE]; + ssize_t ret = 0; + ssize_t nread; + + if (!access_ok(VERIFY_WRITE, buf, count)) + return -EFAULT; + + WARN_ON(*ppos); + + if (wait_event_interruptible(bt_bmc->queue, + bt_inb(bt_bmc, BT_CTRL) & BT_CTRL_H2B_ATN)) + return -ERESTARTSYS; + + mutex_lock(&bt_bmc->mutex); + + if (unlikely(!(bt_inb(bt_bmc, BT_CTRL) & BT_CTRL_H2B_ATN))) { + ret = -EIO; + goto out_unlock; + } + + set_b_busy(bt_bmc); + clr_h2b_atn(bt_bmc); + clr_rd_ptr(bt_bmc); + + /* + * The BT frames start with the message length, which does not + * include the length byte. + */ + kbuffer[0] = bt_read(bt_bmc); + len = kbuffer[0]; + + /* We pass the length back to userspace as well */ + if (len + 1 > count) + len = count - 1; + + while (len) { + nread = min_t(ssize_t, len, sizeof(kbuffer) - len_byte); + + bt_readn(bt_bmc, kbuffer + len_byte, nread); + + if (copy_to_user(buf, kbuffer, nread + len_byte)) { + ret = -EFAULT; + break; + } + len -= nread; + buf += nread + len_byte; + ret += nread + len_byte; + len_byte = 0; + } + + clr_b_busy(bt_bmc); + +out_unlock: + mutex_unlock(&bt_bmc->mutex); + return ret; +} + +/* + * BT Message response format : + * + * Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6:N + * Length NetFn/LUN Seq Cmd Code Data + */ +static ssize_t bt_bmc_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct bt_bmc *bt_bmc = file_bt_bmc(file); + u8 kbuffer[BT_BMC_BUFFER_SIZE]; + ssize_t ret = 0; + ssize_t nwritten; + + /* + * send a minimum response size + */ + if (count < 5) + return -EINVAL; + + if (!access_ok(VERIFY_READ, buf, count)) + return -EFAULT; + + WARN_ON(*ppos); + + /* + * There's no interrupt for clearing bmc busy so we have to + * poll + */ + if (wait_event_interruptible(bt_bmc->queue, + !(bt_inb(bt_bmc, BT_CTRL) & + (BT_CTRL_H_BUSY | BT_CTRL_B2H_ATN)))) + return -ERESTARTSYS; + + mutex_lock(&bt_bmc->mutex); + + if (unlikely(bt_inb(bt_bmc, BT_CTRL) & + (BT_CTRL_H_BUSY | BT_CTRL_B2H_ATN))) { + ret = -EIO; + goto out_unlock; + } + + clr_wr_ptr(bt_bmc); + + while (count) { + nwritten = min_t(ssize_t, count, sizeof(kbuffer)); + if (copy_from_user(&kbuffer, buf, nwritten)) { + ret = -EFAULT; + break; + } + + bt_writen(bt_bmc, kbuffer, nwritten); + + count -= nwritten; + buf += nwritten; + ret += nwritten; + } + + set_b2h_atn(bt_bmc); + +out_unlock: + mutex_unlock(&bt_bmc->mutex); + return ret; +} + +static long bt_bmc_ioctl(struct file *file, unsigned int cmd, + unsigned long param) +{ + struct bt_bmc *bt_bmc = file_bt_bmc(file); + + switch (cmd) { + case BT_BMC_IOCTL_SMS_ATN: + set_sms_atn(bt_bmc); + return 0; + } + return -EINVAL; +} + +static int bt_bmc_release(struct inode *inode, struct file *file) +{ + struct bt_bmc *bt_bmc = file_bt_bmc(file); + + atomic_dec(&open_count); + set_b_busy(bt_bmc); + return 0; +} + +static unsigned int bt_bmc_poll(struct file *file, poll_table *wait) +{ + struct bt_bmc *bt_bmc = file_bt_bmc(file); + unsigned int mask = 0; + u8 ctrl; + + poll_wait(file, &bt_bmc->queue, wait); + + ctrl = bt_inb(bt_bmc, BT_CTRL); + + if (ctrl & BT_CTRL_H2B_ATN) + mask |= POLLIN; + + if (!(ctrl & (BT_CTRL_H_BUSY | BT_CTRL_B2H_ATN))) + mask |= POLLOUT; + + return mask; +} + +static const struct file_operations bt_bmc_fops = { + .owner = THIS_MODULE, + .open = bt_bmc_open, + .read = bt_bmc_read, + .write = bt_bmc_write, + .release = bt_bmc_release, + .poll = bt_bmc_poll, + .unlocked_ioctl = bt_bmc_ioctl, +}; + +static void poll_timer(unsigned long data) +{ + struct bt_bmc *bt_bmc = (void *)data; + + bt_bmc->poll_timer.expires += msecs_to_jiffies(500); + wake_up(&bt_bmc->queue); + add_timer(&bt_bmc->poll_timer); +} + +static irqreturn_t bt_bmc_irq(int irq, void *arg) +{ + struct bt_bmc *bt_bmc = arg; + u32 reg; + + reg = ioread32(bt_bmc->base + BT_CR2); + reg &= BT_CR2_IRQ_H2B | BT_CR2_IRQ_HBUSY; + if (!reg) + return IRQ_NONE; + + /* ack pending IRQs */ + iowrite32(reg, bt_bmc->base + BT_CR2); + + wake_up(&bt_bmc->queue); + return IRQ_HANDLED; +} + +static int bt_bmc_config_irq(struct bt_bmc *bt_bmc, + struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + u32 reg; + int rc; + + bt_bmc->irq = platform_get_irq(pdev, 0); + if (!bt_bmc->irq) + return -ENODEV; + + rc = devm_request_irq(dev, bt_bmc->irq, bt_bmc_irq, IRQF_SHARED, + DEVICE_NAME, bt_bmc); + if (rc < 0) { + dev_warn(dev, "Unable to request IRQ %d\n", bt_bmc->irq); + bt_bmc->irq = 0; + return rc; + } + + /* + * Configure IRQs on the bmc clearing the H2B and HBUSY bits; + * H2B will be asserted when the bmc has data for us; HBUSY + * will be cleared (along with B2H) when we can write the next + * message to the BT buffer + */ + reg = ioread32(bt_bmc->base + BT_CR1); + reg |= BT_CR1_IRQ_H2B | BT_CR1_IRQ_HBUSY; + iowrite32(reg, bt_bmc->base + BT_CR1); + + return 0; +} + +static int bt_bmc_probe(struct platform_device *pdev) +{ + struct bt_bmc *bt_bmc; + struct device *dev; + struct resource *res; + int rc; + + if (!pdev || !pdev->dev.of_node) + return -ENODEV; + + dev = &pdev->dev; + dev_info(dev, "Found bt bmc device\n"); + + bt_bmc = devm_kzalloc(dev, sizeof(*bt_bmc), GFP_KERNEL); + if (!bt_bmc) + return -ENOMEM; + + dev_set_drvdata(&pdev->dev, bt_bmc); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + bt_bmc->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(bt_bmc->base)) + return PTR_ERR(bt_bmc->base); + + mutex_init(&bt_bmc->mutex); + init_waitqueue_head(&bt_bmc->queue); + + bt_bmc->miscdev.minor = MISC_DYNAMIC_MINOR, + bt_bmc->miscdev.name = DEVICE_NAME, + bt_bmc->miscdev.fops = &bt_bmc_fops, + bt_bmc->miscdev.parent = dev; + rc = misc_register(&bt_bmc->miscdev); + if (rc) { + dev_err(dev, "Unable to register misc device\n"); + return rc; + } + + bt_bmc_config_irq(bt_bmc, pdev); + + if (bt_bmc->irq) { + dev_info(dev, "Using IRQ %d\n", bt_bmc->irq); + } else { + dev_info(dev, "No IRQ; using timer\n"); + setup_timer(&bt_bmc->poll_timer, poll_timer, + (unsigned long)bt_bmc); + bt_bmc->poll_timer.expires = jiffies + msecs_to_jiffies(10); + add_timer(&bt_bmc->poll_timer); + } + + iowrite32((BT_IO_BASE << BT_CR0_IO_BASE) | + (BT_IRQ << BT_CR0_IRQ) | + BT_CR0_EN_CLR_SLV_RDP | + BT_CR0_EN_CLR_SLV_WRP | + BT_CR0_ENABLE_IBT, + bt_bmc->base + BT_CR0); + + clr_b_busy(bt_bmc); + + return 0; +} + +static int bt_bmc_remove(struct platform_device *pdev) +{ + struct bt_bmc *bt_bmc = dev_get_drvdata(&pdev->dev); + + misc_deregister(&bt_bmc->miscdev); + if (!bt_bmc->irq) + del_timer_sync(&bt_bmc->poll_timer); + return 0; +} + +static const struct of_device_id bt_bmc_match[] = { + { .compatible = "aspeed,ast2400-bt-bmc" }, + { }, +}; + +static struct platform_driver bt_bmc_driver = { + .driver = { + .name = DEVICE_NAME, + .of_match_table = bt_bmc_match, + }, + .probe = bt_bmc_probe, + .remove = bt_bmc_remove, +}; + +module_platform_driver(bt_bmc_driver); + +MODULE_DEVICE_TABLE(of, bt_bmc_match); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Alistair Popple <alistair@popple.id.au>"); +MODULE_DESCRIPTION("Linux device interface to the BT interface"); diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index d8619998cfb5..fcdd886819f5 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -2891,11 +2891,11 @@ int ipmi_register_smi(const struct ipmi_smi_handlers *handlers, intf->curr_channel = IPMI_MAX_CHANNELS; } + rv = ipmi_bmc_register(intf, i); + if (rv == 0) rv = add_proc_entries(intf, i); - rv = ipmi_bmc_register(intf, i); - out: if (rv) { if (intf->proc_dir) @@ -2982,8 +2982,6 @@ int ipmi_unregister_smi(ipmi_smi_t intf) int intf_num = intf->intf_num; ipmi_user_t user; - ipmi_bmc_unregister(intf); - mutex_lock(&smi_watchers_mutex); mutex_lock(&ipmi_interfaces_mutex); intf->intf_num = -1; @@ -3007,6 +3005,7 @@ int ipmi_unregister_smi(ipmi_smi_t intf) mutex_unlock(&ipmi_interfaces_mutex); remove_proc_entries(intf); + ipmi_bmc_unregister(intf); /* * Call all the watcher interfaces to tell them that diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index 245190839359..e2c6e43cf8ca 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -417,6 +417,16 @@ config SYS_SUPPORTS_SH_TMU config SYS_SUPPORTS_EM_STI bool +config CLKSRC_JCORE_PIT + bool "J-Core PIT timer driver" if COMPILE_TEST + depends on OF + depends on GENERIC_CLOCKEVENTS + depends on HAS_IOMEM + select CLKSRC_MMIO + help + This enables build of clocksource and clockevent driver for + the integrated PIT in the J-Core synthesizable, open source SoC. + config SH_TIMER_CMT bool "Renesas CMT timer driver" if COMPILE_TEST depends on GENERIC_CLOCKEVENTS diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index fd9d6df0bbc0..cf87f407f1ad 100644 --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_ATMEL_TCB_CLKSRC) += tcb_clksrc.o obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o obj-$(CONFIG_SCx200HR_TIMER) += scx200_hrt.o obj-$(CONFIG_CS5535_CLOCK_EVENT_SRC) += cs5535-clockevt.o +obj-$(CONFIG_CLKSRC_JCORE_PIT) += jcore-pit.o obj-$(CONFIG_SH_TIMER_CMT) += sh_cmt.o obj-$(CONFIG_SH_TIMER_MTU2) += sh_mtu2.o obj-$(CONFIG_SH_TIMER_TMU) += sh_tmu.o diff --git a/drivers/clocksource/jcore-pit.c b/drivers/clocksource/jcore-pit.c new file mode 100644 index 000000000000..54e1665aa03c --- /dev/null +++ b/drivers/clocksource/jcore-pit.c @@ -0,0 +1,249 @@ +/* + * J-Core SoC PIT/clocksource driver + * + * Copyright (C) 2015-2016 Smart Energy Instruments, Inc. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/clockchips.h> +#include <linux/clocksource.h> +#include <linux/sched_clock.h> +#include <linux/cpu.h> +#include <linux/cpuhotplug.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> + +#define PIT_IRQ_SHIFT 12 +#define PIT_PRIO_SHIFT 20 +#define PIT_ENABLE_SHIFT 26 +#define PIT_PRIO_MASK 0xf + +#define REG_PITEN 0x00 +#define REG_THROT 0x10 +#define REG_COUNT 0x14 +#define REG_BUSPD 0x18 +#define REG_SECHI 0x20 +#define REG_SECLO 0x24 +#define REG_NSEC 0x28 + +struct jcore_pit { + struct clock_event_device ced; + void __iomem *base; + unsigned long periodic_delta; + u32 enable_val; +}; + +static void __iomem *jcore_pit_base; +static struct jcore_pit __percpu *jcore_pit_percpu; + +static notrace u64 jcore_sched_clock_read(void) +{ + u32 seclo, nsec, seclo0; + __iomem void *base = jcore_pit_base; + + seclo = readl(base + REG_SECLO); + do { + seclo0 = seclo; + nsec = readl(base + REG_NSEC); + seclo = readl(base + REG_SECLO); + } while (seclo0 != seclo); + + return seclo * NSEC_PER_SEC + nsec; +} + +static cycle_t jcore_clocksource_read(struct clocksource *cs) +{ + return jcore_sched_clock_read(); +} + +static int jcore_pit_disable(struct jcore_pit *pit) +{ + writel(0, pit->base + REG_PITEN); + return 0; +} + +static int jcore_pit_set(unsigned long delta, struct jcore_pit *pit) +{ + jcore_pit_disable(pit); + writel(delta, pit->base + REG_THROT); + writel(pit->enable_val, pit->base + REG_PITEN); + return 0; +} + +static int jcore_pit_set_state_shutdown(struct clock_event_device *ced) +{ + struct jcore_pit *pit = container_of(ced, struct jcore_pit, ced); + + return jcore_pit_disable(pit); +} + +static int jcore_pit_set_state_oneshot(struct clock_event_device *ced) +{ + struct jcore_pit *pit = container_of(ced, struct jcore_pit, ced); + + return jcore_pit_disable(pit); +} + +static int jcore_pit_set_state_periodic(struct clock_event_device *ced) +{ + struct jcore_pit *pit = container_of(ced, struct jcore_pit, ced); + + return jcore_pit_set(pit->periodic_delta, pit); +} + +static int jcore_pit_set_next_event(unsigned long delta, + struct clock_event_device *ced) +{ + struct jcore_pit *pit = container_of(ced, struct jcore_pit, ced); + + return jcore_pit_set(delta, pit); +} + +static int jcore_pit_local_init(unsigned cpu) +{ + struct jcore_pit *pit = this_cpu_ptr(jcore_pit_percpu); + unsigned buspd, freq; + + pr_info("Local J-Core PIT init on cpu %u\n", cpu); + + buspd = readl(pit->base + REG_BUSPD); + freq = DIV_ROUND_CLOSEST(NSEC_PER_SEC, buspd); + pit->periodic_delta = DIV_ROUND_CLOSEST(NSEC_PER_SEC, HZ * buspd); + + clockevents_config_and_register(&pit->ced, freq, 1, ULONG_MAX); + + return 0; +} + +static irqreturn_t jcore_timer_interrupt(int irq, void *dev_id) +{ + struct jcore_pit *pit = this_cpu_ptr(dev_id); + + if (clockevent_state_oneshot(&pit->ced)) + jcore_pit_disable(pit); + + pit->ced.event_handler(&pit->ced); + + return IRQ_HANDLED; +} + +static int __init jcore_pit_init(struct device_node *node) +{ + int err; + unsigned pit_irq, cpu; + unsigned long hwirq; + u32 irqprio, enable_val; + + jcore_pit_base = of_iomap(node, 0); + if (!jcore_pit_base) { + pr_err("Error: Cannot map base address for J-Core PIT\n"); + return -ENXIO; + } + + pit_irq = irq_of_parse_and_map(node, 0); + if (!pit_irq) { + pr_err("Error: J-Core PIT has no IRQ\n"); + return -ENXIO; + } + + pr_info("Initializing J-Core PIT at %p IRQ %d\n", + jcore_pit_base, pit_irq); + + err = clocksource_mmio_init(jcore_pit_base, "jcore_pit_cs", + NSEC_PER_SEC, 400, 32, + jcore_clocksource_read); + if (err) { + pr_err("Error registering clocksource device: %d\n", err); + return err; + } + + sched_clock_register(jcore_sched_clock_read, 32, NSEC_PER_SEC); + + jcore_pit_percpu = alloc_percpu(struct jcore_pit); + if (!jcore_pit_percpu) { + pr_err("Failed to allocate memory for clock event device\n"); + return -ENOMEM; + } + + err = request_irq(pit_irq, jcore_timer_interrupt, + IRQF_TIMER | IRQF_PERCPU, + "jcore_pit", jcore_pit_percpu); + if (err) { + pr_err("pit irq request failed: %d\n", err); + free_percpu(jcore_pit_percpu); + return err; + } + + /* + * The J-Core PIT is not hard-wired to a particular IRQ, but + * integrated with the interrupt controller such that the IRQ it + * generates is programmable, as follows: + * + * The bit layout of the PIT enable register is: + * + * .....e..ppppiiiiiiii............ + * + * where the .'s indicate unrelated/unused bits, e is enable, + * p is priority, and i is hard irq number. + * + * For the PIT included in AIC1 (obsolete but still in use), + * any hard irq (trap number) can be programmed via the 8 + * iiiiiiii bits, and a priority (0-15) is programmable + * separately in the pppp bits. + * + * For the PIT included in AIC2 (current), the programming + * interface is equivalent modulo interrupt mapping. This is + * why a different compatible tag was not used. However only + * traps 64-127 (the ones actually intended to be used for + * interrupts, rather than syscalls/exceptions/etc.) can be + * programmed (the high 2 bits of i are ignored) and the + * priority pppp is <<2'd and or'd onto the irq number. This + * choice seems to have been made on the hardware engineering + * side under an assumption that preserving old AIC1 priority + * mappings was important. Future models will likely ignore + * the pppp field. + */ + hwirq = irq_get_irq_data(pit_irq)->hwirq; + irqprio = (hwirq >> 2) & PIT_PRIO_MASK; + enable_val = (1U << PIT_ENABLE_SHIFT) + | (hwirq << PIT_IRQ_SHIFT) + | (irqprio << PIT_PRIO_SHIFT); + + for_each_present_cpu(cpu) { + struct jcore_pit *pit = per_cpu_ptr(jcore_pit_percpu, cpu); + + pit->base = of_iomap(node, cpu); + if (!pit->base) { + pr_err("Unable to map PIT for cpu %u\n", cpu); + continue; + } + + pit->ced.name = "jcore_pit"; + pit->ced.features = CLOCK_EVT_FEAT_PERIODIC + | CLOCK_EVT_FEAT_ONESHOT + | CLOCK_EVT_FEAT_PERCPU; + pit->ced.cpumask = cpumask_of(cpu); + pit->ced.rating = 400; + pit->ced.irq = pit_irq; + pit->ced.set_state_shutdown = jcore_pit_set_state_shutdown; + pit->ced.set_state_periodic = jcore_pit_set_state_periodic; + pit->ced.set_state_oneshot = jcore_pit_set_state_oneshot; + pit->ced.set_next_event = jcore_pit_set_next_event; + + pit->enable_val = enable_val; + } + + cpuhp_setup_state(CPUHP_AP_JCORE_TIMER_STARTING, + "AP_JCORE_TIMER_STARTING", + jcore_pit_local_init, NULL); + + return 0; +} + +CLOCKSOURCE_OF_DECLARE(jcore_pit, "jcore,pit", jcore_pit_init); diff --git a/drivers/clocksource/timer-sun5i.c b/drivers/clocksource/timer-sun5i.c index c184eb84101e..4f87f3e76d83 100644 --- a/drivers/clocksource/timer-sun5i.c +++ b/drivers/clocksource/timer-sun5i.c @@ -152,6 +152,13 @@ static irqreturn_t sun5i_timer_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } +static cycle_t sun5i_clksrc_read(struct clocksource *clksrc) +{ + struct sun5i_timer_clksrc *cs = to_sun5i_timer_clksrc(clksrc); + + return ~readl(cs->timer.base + TIMER_CNTVAL_LO_REG(1)); +} + static int sun5i_rate_cb_clksrc(struct notifier_block *nb, unsigned long event, void *data) { @@ -210,8 +217,13 @@ static int __init sun5i_setup_clocksource(struct device_node *node, writel(TIMER_CTL_ENABLE | TIMER_CTL_RELOAD, base + TIMER_CTL_REG(1)); - ret = clocksource_mmio_init(base + TIMER_CNTVAL_LO_REG(1), node->name, - rate, 340, 32, clocksource_mmio_readl_down); + cs->clksrc.name = node->name; + cs->clksrc.rating = 340; + cs->clksrc.read = sun5i_clksrc_read; + cs->clksrc.mask = CLOCKSOURCE_MASK(32); + cs->clksrc.flags = CLOCK_SOURCE_IS_CONTINUOUS; + + ret = clocksource_register_hz(&cs->clksrc, rate); if (ret) { pr_err("Couldn't register clock source.\n"); goto err_remove_notifier; diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index c06945160a41..5e23e2d305e7 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -11,7 +11,7 @@ cflags-$(CONFIG_X86) += -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 \ -mno-mmx -mno-sse cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS)) -cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \ +cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) -g0 \ -fno-builtin -fpic -mno-single-pic-base cflags-$(CONFIG_EFI_ARMSTUB) += -I$(srctree)/scripts/dtc/libfdt @@ -79,5 +79,6 @@ quiet_cmd_stubcopy = STUBCPY $@ # decompressor. So move our .data to .data.efistub, which is preserved # explicitly by the decompressor linker script. # -STUBCOPY_FLAGS-$(CONFIG_ARM) += --rename-section .data=.data.efistub +STUBCOPY_FLAGS-$(CONFIG_ARM) += --rename-section .data=.data.efistub \ + -R ___ksymtab+sort -R ___kcrctab+sort STUBCOPY_RELOC-$(CONFIG_ARM) := R_ARM_ABS diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c index 2f58e9e2a59c..a51f8cbcfe26 100644 --- a/drivers/gpu/drm/armada/armada_crtc.c +++ b/drivers/gpu/drm/armada/armada_crtc.c @@ -332,17 +332,19 @@ static void armada_drm_crtc_dpms(struct drm_crtc *crtc, int dpms) { struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc); - if (dcrtc->dpms != dpms) { - dcrtc->dpms = dpms; - if (!IS_ERR(dcrtc->clk) && !dpms_blanked(dpms)) - WARN_ON(clk_prepare_enable(dcrtc->clk)); - armada_drm_crtc_update(dcrtc); - if (!IS_ERR(dcrtc->clk) && dpms_blanked(dpms)) - clk_disable_unprepare(dcrtc->clk); + if (dpms_blanked(dcrtc->dpms) != dpms_blanked(dpms)) { if (dpms_blanked(dpms)) armada_drm_vblank_off(dcrtc); - else + else if (!IS_ERR(dcrtc->clk)) + WARN_ON(clk_prepare_enable(dcrtc->clk)); + dcrtc->dpms = dpms; + armada_drm_crtc_update(dcrtc); + if (!dpms_blanked(dpms)) drm_crtc_vblank_on(&dcrtc->crtc); + else if (!IS_ERR(dcrtc->clk)) + clk_disable_unprepare(dcrtc->clk); + } else if (dcrtc->dpms != dpms) { + dcrtc->dpms = dpms; } } diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c index cb86c7e5495c..d9230132dfbc 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c @@ -329,20 +329,34 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, /* * Append a LINK to the submitted command buffer to return to * the ring buffer. return_target is the ring target address. - * We need three dwords: event, wait, link. + * We need at most 7 dwords in the return target: 2 cache flush + + * 2 semaphore stall + 1 event + 1 wait + 1 link. */ - return_dwords = 3; + return_dwords = 7; return_target = etnaviv_buffer_reserve(gpu, buffer, return_dwords); CMD_LINK(cmdbuf, return_dwords, return_target); /* - * Append event, wait and link pointing back to the wait - * command to the ring buffer. + * Append a cache flush, stall, event, wait and link pointing back to + * the wait command to the ring buffer. */ + if (gpu->exec_state == ETNA_PIPE_2D) { + CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE, + VIVS_GL_FLUSH_CACHE_PE2D); + } else { + CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE, + VIVS_GL_FLUSH_CACHE_DEPTH | + VIVS_GL_FLUSH_CACHE_COLOR); + CMD_LOAD_STATE(buffer, VIVS_TS_FLUSH_CACHE, + VIVS_TS_FLUSH_CACHE_FLUSH); + } + CMD_SEM(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE); + CMD_STALL(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE); CMD_LOAD_STATE(buffer, VIVS_GL_EVENT, VIVS_GL_EVENT_EVENT_ID(event) | VIVS_GL_EVENT_FROM_PE); CMD_WAIT(buffer); - CMD_LINK(buffer, 2, return_target + 8); + CMD_LINK(buffer, 2, etnaviv_iommu_get_cmdbuf_va(gpu, buffer) + + buffer->user_size - 4); if (drm_debug & DRM_UT_DRIVER) pr_info("stream link to 0x%08x @ 0x%08x %p\n", diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c index d3796ed8d8c5..169ac96e8f08 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c @@ -330,7 +330,8 @@ u32 etnaviv_iommu_get_cmdbuf_va(struct etnaviv_gpu *gpu, return (u32)buf->vram_node.start; mutex_lock(&mmu->lock); - ret = etnaviv_iommu_find_iova(mmu, &buf->vram_node, buf->size); + ret = etnaviv_iommu_find_iova(mmu, &buf->vram_node, + buf->size + SZ_64K); if (ret < 0) { mutex_unlock(&mmu->lock); return 0; diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c index 3371635cd4d7..b2d5e188b1b8 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c @@ -51,6 +51,7 @@ static void fsl_dcu_drm_disable_crtc(struct drm_crtc *crtc) DCU_MODE_DCU_MODE(DCU_MODE_OFF)); regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, DCU_UPDATE_MODE_READREG); + clk_disable_unprepare(fsl_dev->pix_clk); } static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc) @@ -58,6 +59,7 @@ static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; + clk_prepare_enable(fsl_dev->pix_clk); regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, DCU_MODE_DCU_MODE_MASK, DCU_MODE_DCU_MODE(DCU_MODE_NORMAL)); @@ -116,8 +118,6 @@ static void fsl_dcu_drm_crtc_mode_set_nofb(struct drm_crtc *crtc) DCU_THRESHOLD_LS_BF_VS(BF_VS_VAL) | DCU_THRESHOLD_OUT_BUF_HIGH(BUF_MAX_VAL) | DCU_THRESHOLD_OUT_BUF_LOW(BUF_MIN_VAL)); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); return; } diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index 0884c45aefe8..e04efbed1a54 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -267,12 +267,8 @@ static int fsl_dcu_drm_pm_resume(struct device *dev) return ret; } - ret = clk_prepare_enable(fsl_dev->pix_clk); - if (ret < 0) { - dev_err(dev, "failed to enable pix clk\n"); - goto disable_dcu_clk; - } - + if (fsl_dev->tcon) + fsl_tcon_bypass_enable(fsl_dev->tcon); fsl_dcu_drm_init_planes(fsl_dev->drm); drm_atomic_helper_resume(fsl_dev->drm, fsl_dev->state); @@ -284,10 +280,6 @@ static int fsl_dcu_drm_pm_resume(struct device *dev) enable_irq(fsl_dev->irq); return 0; - -disable_dcu_clk: - clk_disable_unprepare(fsl_dev->clk); - return ret; } #endif @@ -401,18 +393,12 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) goto disable_clk; } - ret = clk_prepare_enable(fsl_dev->pix_clk); - if (ret < 0) { - dev_err(dev, "failed to enable pix clk\n"); - goto unregister_pix_clk; - } - fsl_dev->tcon = fsl_tcon_init(dev); drm = drm_dev_alloc(driver, dev); if (IS_ERR(drm)) { ret = PTR_ERR(drm); - goto disable_pix_clk; + goto unregister_pix_clk; } fsl_dev->dev = dev; @@ -433,8 +419,6 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) unref: drm_dev_unref(drm); -disable_pix_clk: - clk_disable_unprepare(fsl_dev->pix_clk); unregister_pix_clk: clk_unregister(fsl_dev->pix_clk); disable_clk: @@ -447,7 +431,6 @@ static int fsl_dcu_drm_remove(struct platform_device *pdev) struct fsl_dcu_drm_device *fsl_dev = platform_get_drvdata(pdev); clk_disable_unprepare(fsl_dev->clk); - clk_disable_unprepare(fsl_dev->pix_clk); clk_unregister(fsl_dev->pix_clk); drm_put_dev(fsl_dev->drm); diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c index a7e5486bd1e9..9e6f7d8112b3 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c @@ -211,11 +211,6 @@ void fsl_dcu_drm_init_planes(struct drm_device *dev) for (j = 1; j <= fsl_dev->soc->layer_regs; j++) regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0); } - regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, - DCU_MODE_DCU_MODE_MASK, - DCU_MODE_DCU_MODE(DCU_MODE_OFF)); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); } struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device *dev) diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c index 26edcc899712..e1dd75b18118 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c @@ -20,38 +20,6 @@ #include "fsl_dcu_drm_drv.h" #include "fsl_tcon.h" -static int -fsl_dcu_drm_encoder_atomic_check(struct drm_encoder *encoder, - struct drm_crtc_state *crtc_state, - struct drm_connector_state *conn_state) -{ - return 0; -} - -static void fsl_dcu_drm_encoder_disable(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; - - if (fsl_dev->tcon) - fsl_tcon_bypass_disable(fsl_dev->tcon); -} - -static void fsl_dcu_drm_encoder_enable(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; - - if (fsl_dev->tcon) - fsl_tcon_bypass_enable(fsl_dev->tcon); -} - -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { - .atomic_check = fsl_dcu_drm_encoder_atomic_check, - .disable = fsl_dcu_drm_encoder_disable, - .enable = fsl_dcu_drm_encoder_enable, -}; - static void fsl_dcu_drm_encoder_destroy(struct drm_encoder *encoder) { drm_encoder_cleanup(encoder); @@ -68,13 +36,16 @@ int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev, int ret; encoder->possible_crtcs = 1; + + /* Use bypass mode for parallel RGB/LVDS encoder */ + if (fsl_dev->tcon) + fsl_tcon_bypass_enable(fsl_dev->tcon); + ret = drm_encoder_init(fsl_dev->drm, encoder, &encoder_funcs, DRM_MODE_ENCODER_LVDS, NULL); if (ret < 0) return ret; - drm_encoder_helper_add(encoder, &encoder_helper_funcs); - return 0; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index e8ae3dc476d1..18061a4bc2f2 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -241,15 +241,15 @@ static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, void *ptr); MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev"); -module_param_named(enable_fbdev, enable_fbdev, int, 0600); +module_param_named(enable_fbdev, enable_fbdev, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages"); -module_param_named(force_dma_api, vmw_force_iommu, int, 0600); +module_param_named(force_dma_api, vmw_force_iommu, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages"); -module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600); +module_param_named(restrict_iommu, vmw_restrict_iommu, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages"); -module_param_named(force_coherent, vmw_force_coherent, int, 0600); +module_param_named(force_coherent, vmw_force_coherent, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU"); -module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600); +module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes"); module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 070d750af16d..1e59a486bba8 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -43,7 +43,7 @@ #define VMWGFX_DRIVER_DATE "20160210" #define VMWGFX_DRIVER_MAJOR 2 -#define VMWGFX_DRIVER_MINOR 10 +#define VMWGFX_DRIVER_MINOR 11 #define VMWGFX_DRIVER_PATCHLEVEL 0 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index dc5beff2b4aa..c7b53d987f06 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -35,17 +35,37 @@ #define VMW_RES_HT_ORDER 12 /** + * enum vmw_resource_relocation_type - Relocation type for resources + * + * @vmw_res_rel_normal: Traditional relocation. The resource id in the + * command stream is replaced with the actual id after validation. + * @vmw_res_rel_nop: NOP relocation. The command is unconditionally replaced + * with a NOP. + * @vmw_res_rel_cond_nop: Conditional NOP relocation. If the resource id + * after validation is -1, the command is replaced with a NOP. Otherwise no + * action. + */ +enum vmw_resource_relocation_type { + vmw_res_rel_normal, + vmw_res_rel_nop, + vmw_res_rel_cond_nop, + vmw_res_rel_max +}; + +/** * struct vmw_resource_relocation - Relocation info for resources * * @head: List head for the software context's relocation list. * @res: Non-ref-counted pointer to the resource. - * @offset: Offset of 4 byte entries into the command buffer where the + * @offset: Offset of single byte entries into the command buffer where the * id that needs fixup is located. + * @rel_type: Type of relocation. */ struct vmw_resource_relocation { struct list_head head; const struct vmw_resource *res; - unsigned long offset; + u32 offset:29; + enum vmw_resource_relocation_type rel_type:3; }; /** @@ -109,7 +129,18 @@ static int vmw_bo_to_validate_list(struct vmw_sw_context *sw_context, struct vmw_dma_buffer *vbo, bool validate_as_mob, uint32_t *p_val_node); - +/** + * vmw_ptr_diff - Compute the offset from a to b in bytes + * + * @a: A starting pointer. + * @b: A pointer offset in the same address space. + * + * Returns: The offset in bytes between the two pointers. + */ +static size_t vmw_ptr_diff(void *a, void *b) +{ + return (unsigned long) b - (unsigned long) a; +} /** * vmw_resources_unreserve - unreserve resources previously reserved for @@ -409,11 +440,14 @@ static int vmw_resource_context_res_add(struct vmw_private *dev_priv, * @list: Pointer to head of relocation list. * @res: The resource. * @offset: Offset into the command buffer currently being parsed where the - * id that needs fixup is located. Granularity is 4 bytes. + * id that needs fixup is located. Granularity is one byte. + * @rel_type: Relocation type. */ static int vmw_resource_relocation_add(struct list_head *list, const struct vmw_resource *res, - unsigned long offset) + unsigned long offset, + enum vmw_resource_relocation_type + rel_type) { struct vmw_resource_relocation *rel; @@ -425,6 +459,7 @@ static int vmw_resource_relocation_add(struct list_head *list, rel->res = res; rel->offset = offset; + rel->rel_type = rel_type; list_add_tail(&rel->head, list); return 0; @@ -459,11 +494,24 @@ static void vmw_resource_relocations_apply(uint32_t *cb, { struct vmw_resource_relocation *rel; + /* Validate the struct vmw_resource_relocation member size */ + BUILD_BUG_ON(SVGA_CB_MAX_SIZE >= (1 << 29)); + BUILD_BUG_ON(vmw_res_rel_max >= (1 << 3)); + list_for_each_entry(rel, list, head) { - if (likely(rel->res != NULL)) - cb[rel->offset] = rel->res->id; - else - cb[rel->offset] = SVGA_3D_CMD_NOP; + u32 *addr = (u32 *)((unsigned long) cb + rel->offset); + switch (rel->rel_type) { + case vmw_res_rel_normal: + *addr = rel->res->id; + break; + case vmw_res_rel_nop: + *addr = SVGA_3D_CMD_NOP; + break; + default: + if (rel->res->id == -1) + *addr = SVGA_3D_CMD_NOP; + break; + } } } @@ -655,7 +703,9 @@ static int vmw_cmd_res_reloc_add(struct vmw_private *dev_priv, *p_val = NULL; ret = vmw_resource_relocation_add(&sw_context->res_relocations, res, - id_loc - sw_context->buf_start); + vmw_ptr_diff(sw_context->buf_start, + id_loc), + vmw_res_rel_normal); if (unlikely(ret != 0)) return ret; @@ -721,7 +771,8 @@ vmw_cmd_res_check(struct vmw_private *dev_priv, return vmw_resource_relocation_add (&sw_context->res_relocations, res, - id_loc - sw_context->buf_start); + vmw_ptr_diff(sw_context->buf_start, id_loc), + vmw_res_rel_normal); } ret = vmw_user_resource_lookup_handle(dev_priv, @@ -2143,10 +2194,10 @@ static int vmw_cmd_shader_define(struct vmw_private *dev_priv, return ret; return vmw_resource_relocation_add(&sw_context->res_relocations, - NULL, &cmd->header.id - - sw_context->buf_start); - - return 0; + NULL, + vmw_ptr_diff(sw_context->buf_start, + &cmd->header.id), + vmw_res_rel_nop); } /** @@ -2188,10 +2239,10 @@ static int vmw_cmd_shader_destroy(struct vmw_private *dev_priv, return ret; return vmw_resource_relocation_add(&sw_context->res_relocations, - NULL, &cmd->header.id - - sw_context->buf_start); - - return 0; + NULL, + vmw_ptr_diff(sw_context->buf_start, + &cmd->header.id), + vmw_res_rel_nop); } /** @@ -2848,8 +2899,7 @@ static int vmw_cmd_dx_cid_check(struct vmw_private *dev_priv, * @header: Pointer to the command header in the command stream. * * Check that the view exists, and if it was not created using this - * command batch, make sure it's validated (present in the device) so that - * the remove command will not confuse the device. + * command batch, conditionally make this command a NOP. */ static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv, struct vmw_sw_context *sw_context, @@ -2877,10 +2927,16 @@ static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv, return ret; /* - * Add view to the validate list iff it was not created using this - * command batch. + * If the view wasn't created during this command batch, it might + * have been removed due to a context swapout, so add a + * relocation to conditionally make this command a NOP to avoid + * device errors. */ - return vmw_view_res_val_add(sw_context, view); + return vmw_resource_relocation_add(&sw_context->res_relocations, + view, + vmw_ptr_diff(sw_context->buf_start, + &cmd->header.id), + vmw_res_rel_cond_nop); } /** @@ -3029,6 +3085,35 @@ static int vmw_cmd_dx_genmips(struct vmw_private *dev_priv, cmd->body.shaderResourceViewId); } +/** + * vmw_cmd_dx_transfer_from_buffer - + * Validate an SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command + * + * @dev_priv: Pointer to a device private struct. + * @sw_context: The software context being used for this batch. + * @header: Pointer to the command header in the command stream. + */ +static int vmw_cmd_dx_transfer_from_buffer(struct vmw_private *dev_priv, + struct vmw_sw_context *sw_context, + SVGA3dCmdHeader *header) +{ + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDXTransferFromBuffer body; + } *cmd = container_of(header, typeof(*cmd), header); + int ret; + + ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, + user_surface_converter, + &cmd->body.srcSid, NULL); + if (ret != 0) + return ret; + + return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, + user_surface_converter, + &cmd->body.destSid, NULL); +} + static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv, struct vmw_sw_context *sw_context, void *buf, uint32_t *size) @@ -3379,6 +3464,9 @@ static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_MAX] = { &vmw_cmd_buffer_copy_check, true, false, true), VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY_REGION, &vmw_cmd_pred_copy_check, true, false, true), + VMW_CMD_DEF(SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER, + &vmw_cmd_dx_transfer_from_buffer, + true, false, true), }; static int vmw_cmd_check(struct vmw_private *dev_priv, @@ -3848,14 +3936,14 @@ static void *vmw_execbuf_cmdbuf(struct vmw_private *dev_priv, int ret; *header = NULL; - if (!dev_priv->cman || kernel_commands) - return kernel_commands; - if (command_size > SVGA_CB_MAX_SIZE) { DRM_ERROR("Command buffer is too large.\n"); return ERR_PTR(-EINVAL); } + if (!dev_priv->cman || kernel_commands) + return kernel_commands; + /* If possible, add a little space for fencing. */ cmdbuf_size = command_size + 512; cmdbuf_size = min_t(size_t, cmdbuf_size, SVGA_CB_MAX_SIZE); @@ -4232,9 +4320,6 @@ void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv, ttm_bo_unref(&query_val.bo); ttm_bo_unref(&pinned_val.bo); vmw_dmabuf_unreference(&dev_priv->pinned_bo); - DRM_INFO("Dummy query bo pin count: %d\n", - dev_priv->dummy_query_bo->pin_count); - out_unlock: return; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 6a328d507a28..52ca1c9d070e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -574,10 +574,8 @@ static int vmw_user_dmabuf_synccpu_grab(struct vmw_user_dma_buffer *user_bo, bool nonblock = !!(flags & drm_vmw_synccpu_dontblock); long lret; - if (nonblock) - return reservation_object_test_signaled_rcu(bo->resv, true) ? 0 : -EBUSY; - - lret = reservation_object_wait_timeout_rcu(bo->resv, true, true, MAX_SCHEDULE_TIMEOUT); + lret = reservation_object_wait_timeout_rcu(bo->resv, true, true, + nonblock ? 0 : MAX_SCHEDULE_TIMEOUT); if (!lret) return -EBUSY; else if (lret < 0) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index c2a721a8cef9..b445ce9b9757 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -324,7 +324,7 @@ static void vmw_hw_surface_destroy(struct vmw_resource *res) if (res->id != -1) { cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size()); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "destruction.\n"); return; @@ -397,7 +397,7 @@ static int vmw_legacy_srf_create(struct vmw_resource *res) submit_size = vmw_surface_define_size(srf); cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "creation.\n"); ret = -ENOMEM; @@ -446,11 +446,10 @@ static int vmw_legacy_srf_dma(struct vmw_resource *res, uint8_t *cmd; struct vmw_private *dev_priv = res->dev_priv; - BUG_ON(val_buf->bo == NULL); - + BUG_ON(!val_buf->bo); submit_size = vmw_surface_dma_size(srf); cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "DMA.\n"); return -ENOMEM; @@ -538,7 +537,7 @@ static int vmw_legacy_srf_destroy(struct vmw_resource *res) submit_size = vmw_surface_destroy_size(); cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "eviction.\n"); return -ENOMEM; @@ -578,7 +577,7 @@ static int vmw_surface_init(struct vmw_private *dev_priv, int ret; struct vmw_resource *res = &srf->res; - BUG_ON(res_free == NULL); + BUG_ON(!res_free); if (!dev_priv->has_mob) vmw_fifo_resource_inc(dev_priv); ret = vmw_resource_init(dev_priv, res, true, res_free, @@ -700,7 +699,6 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, struct drm_vmw_surface_create_req *req = &arg->req; struct drm_vmw_surface_arg *rep = &arg->rep; struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; - struct drm_vmw_size __user *user_sizes; int ret; int i, j; uint32_t cur_bo_offset; @@ -748,7 +746,7 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, } user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); - if (unlikely(user_srf == NULL)) { + if (unlikely(!user_srf)) { ret = -ENOMEM; goto out_no_user_srf; } @@ -763,29 +761,21 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels)); srf->num_sizes = num_sizes; user_srf->size = size; - - srf->sizes = kmalloc(srf->num_sizes * sizeof(*srf->sizes), GFP_KERNEL); - if (unlikely(srf->sizes == NULL)) { - ret = -ENOMEM; + srf->sizes = memdup_user((struct drm_vmw_size __user *)(unsigned long) + req->size_addr, + sizeof(*srf->sizes) * srf->num_sizes); + if (IS_ERR(srf->sizes)) { + ret = PTR_ERR(srf->sizes); goto out_no_sizes; } - srf->offsets = kmalloc(srf->num_sizes * sizeof(*srf->offsets), - GFP_KERNEL); - if (unlikely(srf->offsets == NULL)) { + srf->offsets = kmalloc_array(srf->num_sizes, + sizeof(*srf->offsets), + GFP_KERNEL); + if (unlikely(!srf->offsets)) { ret = -ENOMEM; goto out_no_offsets; } - user_sizes = (struct drm_vmw_size __user *)(unsigned long) - req->size_addr; - - ret = copy_from_user(srf->sizes, user_sizes, - srf->num_sizes * sizeof(*srf->sizes)); - if (unlikely(ret != 0)) { - ret = -EFAULT; - goto out_no_copy; - } - srf->base_size = *srf->sizes; srf->autogen_filter = SVGA3D_TEX_FILTER_NONE; srf->multisample_count = 0; @@ -923,7 +913,7 @@ vmw_surface_handle_reference(struct vmw_private *dev_priv, ret = -EINVAL; base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle); - if (unlikely(base == NULL)) { + if (unlikely(!base)) { DRM_ERROR("Could not find surface to reference.\n"); goto out_no_lookup; } @@ -1069,7 +1059,7 @@ static int vmw_gb_surface_create(struct vmw_resource *res) cmd = vmw_fifo_reserve(dev_priv, submit_len); cmd2 = (typeof(cmd2))cmd; - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "creation.\n"); ret = -ENOMEM; @@ -1135,7 +1125,7 @@ static int vmw_gb_surface_bind(struct vmw_resource *res, submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0); cmd1 = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd1 == NULL)) { + if (unlikely(!cmd1)) { DRM_ERROR("Failed reserving FIFO space for surface " "binding.\n"); return -ENOMEM; @@ -1185,7 +1175,7 @@ static int vmw_gb_surface_unbind(struct vmw_resource *res, submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2)); cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "unbinding.\n"); return -ENOMEM; @@ -1244,7 +1234,7 @@ static int vmw_gb_surface_destroy(struct vmw_resource *res) vmw_binding_res_list_scrub(&res->binding_head); cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); - if (unlikely(cmd == NULL)) { + if (unlikely(!cmd)) { DRM_ERROR("Failed reserving FIFO space for surface " "destruction.\n"); mutex_unlock(&dev_priv->binding_mutex); @@ -1410,7 +1400,7 @@ int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data, user_srf = container_of(base, struct vmw_user_surface, prime.base); srf = &user_srf->srf; - if (srf->res.backup == NULL) { + if (!srf->res.backup) { DRM_ERROR("Shared GB surface is missing a backup buffer.\n"); goto out_bad_resource; } @@ -1524,7 +1514,7 @@ int vmw_surface_gb_priv_define(struct drm_device *dev, } user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); - if (unlikely(user_srf == NULL)) { + if (unlikely(!user_srf)) { ret = -ENOMEM; goto out_no_user_srf; } diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c index 98114cef1e43..2fe1828bd10b 100644 --- a/drivers/hwmon/adm9240.c +++ b/drivers/hwmon/adm9240.c @@ -194,10 +194,10 @@ static struct adm9240_data *adm9240_update_device(struct device *dev) * 0.5'C per two measurement cycles thus ignore possible * but unlikely aliasing error on lsb reading. --Grant */ - data->temp = ((i2c_smbus_read_byte_data(client, + data->temp = (i2c_smbus_read_byte_data(client, ADM9240_REG_TEMP) << 8) | i2c_smbus_read_byte_data(client, - ADM9240_REG_TEMP_CONF)) / 128; + ADM9240_REG_TEMP_CONF); for (i = 0; i < 2; i++) { /* read fans */ data->fan[i] = i2c_smbus_read_byte_data(client, @@ -263,7 +263,7 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *dummy, char *buf) { struct adm9240_data *data = adm9240_update_device(dev); - return sprintf(buf, "%d\n", data->temp * 500); /* 9-bit value */ + return sprintf(buf, "%d\n", data->temp / 128 * 500); /* 9-bit value */ } static ssize_t show_max(struct device *dev, struct device_attribute *devattr, diff --git a/drivers/hwmon/max31790.c b/drivers/hwmon/max31790.c index bef84e085973..c1b9275978f9 100644 --- a/drivers/hwmon/max31790.c +++ b/drivers/hwmon/max31790.c @@ -268,11 +268,13 @@ static int max31790_read_pwm(struct device *dev, u32 attr, int channel, long *val) { struct max31790_data *data = max31790_update_device(dev); - u8 fan_config = data->fan_config[channel]; + u8 fan_config; if (IS_ERR(data)) return PTR_ERR(data); + fan_config = data->fan_config[channel]; + switch (attr) { case hwmon_pwm_input: *val = data->pwm[channel] >> 8; diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 82b0b5daf3f5..bc0af3307bbf 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -158,8 +158,8 @@ config PIC32_EVIC select IRQ_DOMAIN config JCORE_AIC - bool "J-Core integrated AIC" - depends on OF && (SUPERH || COMPILE_TEST) + bool "J-Core integrated AIC" if COMPILE_TEST + depends on OF select IRQ_DOMAIN help Support for the J-Core integrated AIC. diff --git a/drivers/irqchip/irq-eznps.c b/drivers/irqchip/irq-eznps.c index ebc2b0b15f67..2a7a38830a8d 100644 --- a/drivers/irqchip/irq-eznps.c +++ b/drivers/irqchip/irq-eznps.c @@ -135,7 +135,7 @@ static const struct irq_domain_ops nps400_irq_ops = { static int __init nps400_of_init(struct device_node *node, struct device_node *parent) { - static struct irq_domain *nps400_root_domain; + struct irq_domain *nps400_root_domain; if (parent) { pr_err("DeviceTree incore ic not a root irq controller\n"); diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 003495d91f9c..c5dee300e8a3 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1023,7 +1023,7 @@ static void its_free_tables(struct its_node *its) static int its_alloc_tables(struct its_node *its) { - u64 typer = readq_relaxed(its->base + GITS_TYPER); + u64 typer = gic_read_typer(its->base + GITS_TYPER); u32 ids = GITS_TYPER_DEVBITS(typer); u64 shr = GITS_BASER_InnerShareable; u64 cache = GITS_BASER_WaWb; @@ -1198,7 +1198,7 @@ static void its_cpu_init_collection(void) * We now have to bind each collection to its target * redistributor. */ - if (readq_relaxed(its->base + GITS_TYPER) & GITS_TYPER_PTA) { + if (gic_read_typer(its->base + GITS_TYPER) & GITS_TYPER_PTA) { /* * This ITS wants the physical address of the * redistributor. @@ -1208,7 +1208,7 @@ static void its_cpu_init_collection(void) /* * This ITS wants a linear CPU number. */ - target = readq_relaxed(gic_data_rdist_rd_base() + GICR_TYPER); + target = gic_read_typer(gic_data_rdist_rd_base() + GICR_TYPER); target = GICR_TYPER_CPU_NUMBER(target) << 16; } @@ -1691,7 +1691,7 @@ static int __init its_probe_one(struct resource *res, INIT_LIST_HEAD(&its->its_device_list); its->base = its_base; its->phys_base = res->start; - its->ite_size = ((readl_relaxed(its_base + GITS_TYPER) >> 4) & 0xf) + 1; + its->ite_size = ((gic_read_typer(its_base + GITS_TYPER) >> 4) & 0xf) + 1; its->numa_node = numa_node; its->cmd_base = kzalloc(ITS_CMD_QUEUE_SZ, GFP_KERNEL); @@ -1763,7 +1763,7 @@ out_unmap: static bool gic_rdists_supports_plpis(void) { - return !!(readl_relaxed(gic_data_rdist_rd_base() + GICR_TYPER) & GICR_TYPER_PLPIS); + return !!(gic_read_typer(gic_data_rdist_rd_base() + GICR_TYPER) & GICR_TYPER_PLPIS); } int its_cpu_init(void) diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 58e5b4e87056..d6c404b3584d 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -1279,7 +1279,7 @@ static bool gic_check_eoimode(struct device_node *node, void __iomem **base) */ *base += 0xf000; cpuif_res.start += 0xf000; - pr_warn("GIC: Adjusting CPU interface base to %pa", + pr_warn("GIC: Adjusting CPU interface base to %pa\n", &cpuif_res.start); } diff --git a/drivers/memstick/host/rtsx_usb_ms.c b/drivers/memstick/host/rtsx_usb_ms.c index d34bc3530385..2e3cf012ef48 100644 --- a/drivers/memstick/host/rtsx_usb_ms.c +++ b/drivers/memstick/host/rtsx_usb_ms.c @@ -524,6 +524,7 @@ static void rtsx_usb_ms_handle_req(struct work_struct *work) int rc; if (!host->req) { + pm_runtime_get_sync(ms_dev(host)); do { rc = memstick_next_req(msh, &host->req); dev_dbg(ms_dev(host), "next req %d\n", rc); @@ -544,6 +545,7 @@ static void rtsx_usb_ms_handle_req(struct work_struct *work) host->req->error); } } while (!rc); + pm_runtime_put(ms_dev(host)); } } @@ -570,6 +572,7 @@ static int rtsx_usb_ms_set_param(struct memstick_host *msh, dev_dbg(ms_dev(host), "%s: param = %d, value = %d\n", __func__, param, value); + pm_runtime_get_sync(ms_dev(host)); mutex_lock(&ucr->dev_mutex); err = rtsx_usb_card_exclusive_check(ucr, RTSX_USB_MS_CARD); @@ -635,6 +638,7 @@ static int rtsx_usb_ms_set_param(struct memstick_host *msh, } out: mutex_unlock(&ucr->dev_mutex); + pm_runtime_put(ms_dev(host)); /* power-on delay */ if (param == MEMSTICK_POWER && value == MEMSTICK_POWER_ON) @@ -681,6 +685,7 @@ static int rtsx_usb_detect_ms_card(void *__host) int err; for (;;) { + pm_runtime_get_sync(ms_dev(host)); mutex_lock(&ucr->dev_mutex); /* Check pending MS card changes */ @@ -703,6 +708,7 @@ static int rtsx_usb_detect_ms_card(void *__host) } poll_again: + pm_runtime_put(ms_dev(host)); if (host->eject) break; diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index f3d34b941f85..af23d7dfe752 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -229,6 +229,14 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, if (ctx->status == STARTED) goto out; /* already started */ + /* + * Increment the mapped context count for adapter. This also checks + * if adapter_context_lock is taken. + */ + rc = cxl_adapter_context_get(ctx->afu->adapter); + if (rc) + goto out; + if (task) { ctx->pid = get_task_pid(task, PIDTYPE_PID); ctx->glpid = get_task_pid(task->group_leader, PIDTYPE_PID); @@ -240,6 +248,7 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, if ((rc = cxl_ops->attach_process(ctx, kernel, wed, 0))) { put_pid(ctx->pid); + cxl_adapter_context_put(ctx->afu->adapter); cxl_ctx_put(); goto out; } diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index c466ee2b0c97..5e506c19108a 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -238,6 +238,9 @@ int __detach_context(struct cxl_context *ctx) put_pid(ctx->glpid); cxl_ctx_put(); + + /* Decrease the attached context count on the adapter */ + cxl_adapter_context_put(ctx->afu->adapter); return 0; } diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 01d372aba131..a144073593fa 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -618,6 +618,14 @@ struct cxl { bool perst_select_user; bool perst_same_image; bool psl_timebase_synced; + + /* + * number of contexts mapped on to this card. Possible values are: + * >0: Number of contexts mapped and new one can be mapped. + * 0: No active contexts and new ones can be mapped. + * -1: No contexts mapped and new ones cannot be mapped. + */ + atomic_t contexts_num; }; int cxl_pci_alloc_one_irq(struct cxl *adapter); @@ -944,4 +952,20 @@ bool cxl_pci_is_vphb_device(struct pci_dev *dev); /* decode AFU error bits in the PSL register PSL_SERR_An */ void cxl_afu_decode_psl_serr(struct cxl_afu *afu, u64 serr); + +/* + * Increments the number of attached contexts on an adapter. + * In case an adapter_context_lock is taken the return -EBUSY. + */ +int cxl_adapter_context_get(struct cxl *adapter); + +/* Decrements the number of attached contexts on an adapter */ +void cxl_adapter_context_put(struct cxl *adapter); + +/* If no active contexts then prevents contexts from being attached */ +int cxl_adapter_context_lock(struct cxl *adapter); + +/* Unlock the contexts-lock if taken. Warn and force unlock otherwise */ +void cxl_adapter_context_unlock(struct cxl *adapter); + #endif diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c index 5fb9894b157f..d0b421f49b39 100644 --- a/drivers/misc/cxl/file.c +++ b/drivers/misc/cxl/file.c @@ -205,11 +205,22 @@ static long afu_ioctl_start_work(struct cxl_context *ctx, ctx->pid = get_task_pid(current, PIDTYPE_PID); ctx->glpid = get_task_pid(current->group_leader, PIDTYPE_PID); + /* + * Increment the mapped context count for adapter. This also checks + * if adapter_context_lock is taken. + */ + rc = cxl_adapter_context_get(ctx->afu->adapter); + if (rc) { + afu_release_irqs(ctx, ctx); + goto out; + } + trace_cxl_attach(ctx, work.work_element_descriptor, work.num_interrupts, amr); if ((rc = cxl_ops->attach_process(ctx, false, work.work_element_descriptor, amr))) { afu_release_irqs(ctx, ctx); + cxl_adapter_context_put(ctx->afu->adapter); goto out; } diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c index 9aa58a77a24d..3e102cd6ed91 100644 --- a/drivers/misc/cxl/guest.c +++ b/drivers/misc/cxl/guest.c @@ -1152,6 +1152,9 @@ struct cxl *cxl_guest_init_adapter(struct device_node *np, struct platform_devic if ((rc = cxl_sysfs_adapter_add(adapter))) goto err_put1; + /* release the context lock as the adapter is configured */ + cxl_adapter_context_unlock(adapter); + return adapter; err_put1: diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c index d9be23b24aa3..62e0dfb5f15b 100644 --- a/drivers/misc/cxl/main.c +++ b/drivers/misc/cxl/main.c @@ -243,8 +243,10 @@ struct cxl *cxl_alloc_adapter(void) if (dev_set_name(&adapter->dev, "card%i", adapter->adapter_num)) goto err2; - return adapter; + /* start with context lock taken */ + atomic_set(&adapter->contexts_num, -1); + return adapter; err2: cxl_remove_adapter_nr(adapter); err1: @@ -286,6 +288,44 @@ int cxl_afu_select_best_mode(struct cxl_afu *afu) return 0; } +int cxl_adapter_context_get(struct cxl *adapter) +{ + int rc; + + rc = atomic_inc_unless_negative(&adapter->contexts_num); + return rc >= 0 ? 0 : -EBUSY; +} + +void cxl_adapter_context_put(struct cxl *adapter) +{ + atomic_dec_if_positive(&adapter->contexts_num); +} + +int cxl_adapter_context_lock(struct cxl *adapter) +{ + int rc; + /* no active contexts -> contexts_num == 0 */ + rc = atomic_cmpxchg(&adapter->contexts_num, 0, -1); + return rc ? -EBUSY : 0; +} + +void cxl_adapter_context_unlock(struct cxl *adapter) +{ + int val = atomic_cmpxchg(&adapter->contexts_num, -1, 0); + + /* + * contexts lock taken -> contexts_num == -1 + * If not true then show a warning and force reset the lock. + * This will happen when context_unlock was requested without + * doing a context_lock. + */ + if (val != -1) { + atomic_set(&adapter->contexts_num, 0); + WARN(1, "Adapter context unlocked with %d active contexts", + val); + } +} + static int __init init_cxl(void) { int rc = 0; diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c index 7afad8477ad5..e96be9ca4e60 100644 --- a/drivers/misc/cxl/pci.c +++ b/drivers/misc/cxl/pci.c @@ -1487,6 +1487,8 @@ static int cxl_configure_adapter(struct cxl *adapter, struct pci_dev *dev) if ((rc = cxl_native_register_psl_err_irq(adapter))) goto err; + /* Release the context lock as adapter is configured */ + cxl_adapter_context_unlock(adapter); return 0; err: diff --git a/drivers/misc/cxl/sysfs.c b/drivers/misc/cxl/sysfs.c index b043c20f158f..a8b6d6a635e9 100644 --- a/drivers/misc/cxl/sysfs.c +++ b/drivers/misc/cxl/sysfs.c @@ -75,12 +75,31 @@ static ssize_t reset_adapter_store(struct device *device, int val; rc = sscanf(buf, "%i", &val); - if ((rc != 1) || (val != 1)) + if ((rc != 1) || (val != 1 && val != -1)) return -EINVAL; - if ((rc = cxl_ops->adapter_reset(adapter))) - return rc; - return count; + /* + * See if we can lock the context mapping that's only allowed + * when there are no contexts attached to the adapter. Once + * taken this will also prevent any context from getting activated. + */ + if (val == 1) { + rc = cxl_adapter_context_lock(adapter); + if (rc) + goto out; + + rc = cxl_ops->adapter_reset(adapter); + /* In case reset failed release context lock */ + if (rc) + cxl_adapter_context_unlock(adapter); + + } else if (val == -1) { + /* Perform a forced adapter reset */ + rc = cxl_ops->adapter_reset(adapter); + } + +out: + return rc ? rc : count; } static ssize_t load_image_on_perst_show(struct device *device, diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index c3335112e68c..709a872ed484 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -46,6 +46,7 @@ #include <asm/uaccess.h> #include "queue.h" +#include "block.h" MODULE_ALIAS("mmc:block"); #ifdef MODULE_PARAM_PREFIX @@ -1786,7 +1787,7 @@ static void mmc_blk_packed_hdr_wrq_prep(struct mmc_queue_req *mqrq, struct mmc_blk_data *md = mq->data; struct mmc_packed *packed = mqrq->packed; bool do_rel_wr, do_data_tag; - u32 *packed_cmd_hdr; + __le32 *packed_cmd_hdr; u8 hdr_blocks; u8 i = 1; diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h index 3c15a75bae86..342f1e3f301e 100644 --- a/drivers/mmc/card/queue.h +++ b/drivers/mmc/card/queue.h @@ -31,7 +31,7 @@ enum mmc_packed_type { struct mmc_packed { struct list_head list; - u32 cmd_hdr[1024]; + __le32 cmd_hdr[1024]; unsigned int blocks; u8 nr_entries; u8 retries; diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 3486bc7fbb64..39fc5b2b96c5 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1263,6 +1263,16 @@ static int mmc_select_hs400es(struct mmc_card *card) goto out_err; } + if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_2V) + err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120); + + if (err && card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_8V) + err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180); + + /* If fails try again during next card power cycle */ + if (err) + goto out_err; + err = mmc_select_bus_width(card); if (err < 0) goto out_err; @@ -1272,6 +1282,8 @@ static int mmc_select_hs400es(struct mmc_card *card) if (err) goto out_err; + mmc_set_clock(host, card->ext_csd.hs_max_dtr); + err = mmc_switch_status(card); if (err) goto out_err; diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c index 4106295527b9..6e9c0f8fddb1 100644 --- a/drivers/mmc/host/rtsx_usb_sdmmc.c +++ b/drivers/mmc/host/rtsx_usb_sdmmc.c @@ -1138,11 +1138,6 @@ static void sdmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) dev_dbg(sdmmc_dev(host), "%s\n", __func__); mutex_lock(&ucr->dev_mutex); - if (rtsx_usb_card_exclusive_check(ucr, RTSX_USB_SD_CARD)) { - mutex_unlock(&ucr->dev_mutex); - return; - } - sd_set_power_mode(host, ios->power_mode); sd_set_bus_width(host, ios->bus_width); sd_set_timing(host, ios->timing, &host->ddr_mode); @@ -1314,6 +1309,7 @@ static void rtsx_usb_update_led(struct work_struct *work) container_of(work, struct rtsx_usb_sdmmc, led_work); struct rtsx_ucr *ucr = host->ucr; + pm_runtime_get_sync(sdmmc_dev(host)); mutex_lock(&ucr->dev_mutex); if (host->led.brightness == LED_OFF) @@ -1322,6 +1318,7 @@ static void rtsx_usb_update_led(struct work_struct *work) rtsx_usb_turn_on_led(ucr); mutex_unlock(&ucr->dev_mutex); + pm_runtime_put(sdmmc_dev(host)); } #endif diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 1f54fd8755c8..7123ef96ed18 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -346,7 +346,8 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg) struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host); u32 data; - if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE)) { + if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE || + reg == SDHCI_INT_STATUS)) { if ((val & SDHCI_INT_CARD_INT) && !esdhc_is_usdhc(imx_data)) { /* * Clear and then set D3CD bit to avoid missing the @@ -555,6 +556,25 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) esdhc_clrset_le(host, 0xffff, val, reg); } +static u8 esdhc_readb_le(struct sdhci_host *host, int reg) +{ + u8 ret; + u32 val; + + switch (reg) { + case SDHCI_HOST_CONTROL: + val = readl(host->ioaddr + reg); + + ret = val & SDHCI_CTRL_LED; + ret |= (val >> 5) & SDHCI_CTRL_DMA_MASK; + ret |= (val & ESDHC_CTRL_4BITBUS); + ret |= (val & ESDHC_CTRL_8BITBUS) << 3; + return ret; + } + + return readb(host->ioaddr + reg); +} + static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); @@ -947,6 +967,7 @@ static void esdhc_set_timeout(struct sdhci_host *host, struct mmc_command *cmd) static struct sdhci_ops sdhci_esdhc_ops = { .read_l = esdhc_readl_le, .read_w = esdhc_readw_le, + .read_b = esdhc_readb_le, .write_l = esdhc_writel_le, .write_w = esdhc_writew_le, .write_b = esdhc_writeb_le, diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index da8e40af6f85..410a55b1c25f 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -250,7 +250,7 @@ static void sdhci_arasan_hs400_enhanced_strobe(struct mmc_host *mmc, writel(vendor, host->ioaddr + SDHCI_ARASAN_VENDOR_REGISTER); } -void sdhci_arasan_reset(struct sdhci_host *host, u8 mask) +static void sdhci_arasan_reset(struct sdhci_host *host, u8 mask) { u8 ctrl; struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); @@ -265,6 +265,28 @@ void sdhci_arasan_reset(struct sdhci_host *host, u8 mask) } } +static int sdhci_arasan_voltage_switch(struct mmc_host *mmc, + struct mmc_ios *ios) +{ + switch (ios->signal_voltage) { + case MMC_SIGNAL_VOLTAGE_180: + /* + * Plese don't switch to 1V8 as arasan,5.1 doesn't + * actually refer to this setting to indicate the + * signal voltage and the state machine will be broken + * actually if we force to enable 1V8. That's something + * like broken quirk but we could work around here. + */ + return 0; + case MMC_SIGNAL_VOLTAGE_330: + case MMC_SIGNAL_VOLTAGE_120: + /* We don't support 3V3 and 1V2 */ + break; + } + + return -EINVAL; +} + static struct sdhci_ops sdhci_arasan_ops = { .set_clock = sdhci_arasan_set_clock, .get_max_clock = sdhci_pltfm_clk_get_max_clock, @@ -661,6 +683,8 @@ static int sdhci_arasan_probe(struct platform_device *pdev) host->mmc_host_ops.hs400_enhanced_strobe = sdhci_arasan_hs400_enhanced_strobe; + host->mmc_host_ops.start_signal_voltage_switch = + sdhci_arasan_voltage_switch; } ret = sdhci_add_host(host); diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index 72a1f1f5180a..1d9e00a00e9f 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -32,6 +32,14 @@ #include "sdhci-pci.h" #include "sdhci-pci-o2micro.h" +static int sdhci_pci_enable_dma(struct sdhci_host *host); +static void sdhci_pci_set_bus_width(struct sdhci_host *host, int width); +static void sdhci_pci_hw_reset(struct sdhci_host *host); +static int sdhci_pci_select_drive_strength(struct sdhci_host *host, + struct mmc_card *card, + unsigned int max_dtr, int host_drv, + int card_drv, int *drv_type); + /*****************************************************************************\ * * * Hardware specific quirk handling * @@ -390,6 +398,45 @@ static int byt_sd_probe_slot(struct sdhci_pci_slot *slot) return 0; } +#define SDHCI_INTEL_PWR_TIMEOUT_CNT 20 +#define SDHCI_INTEL_PWR_TIMEOUT_UDELAY 100 + +static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) +{ + int cntr; + u8 reg; + + sdhci_set_power(host, mode, vdd); + + if (mode == MMC_POWER_OFF) + return; + + /* + * Bus power might not enable after D3 -> D0 transition due to the + * present state not yet having propagated. Retry for up to 2ms. + */ + for (cntr = 0; cntr < SDHCI_INTEL_PWR_TIMEOUT_CNT; cntr++) { + reg = sdhci_readb(host, SDHCI_POWER_CONTROL); + if (reg & SDHCI_POWER_ON) + break; + udelay(SDHCI_INTEL_PWR_TIMEOUT_UDELAY); + reg |= SDHCI_POWER_ON; + sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); + } +} + +static const struct sdhci_ops sdhci_intel_byt_ops = { + .set_clock = sdhci_set_clock, + .set_power = sdhci_intel_set_power, + .enable_dma = sdhci_pci_enable_dma, + .set_bus_width = sdhci_pci_set_bus_width, + .reset = sdhci_reset, + .set_uhs_signaling = sdhci_set_uhs_signaling, + .hw_reset = sdhci_pci_hw_reset, + .select_drive_strength = sdhci_pci_select_drive_strength, +}; + static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = { .allow_runtime_pm = true, .probe_slot = byt_emmc_probe_slot, @@ -397,6 +444,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = { .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 | SDHCI_QUIRK2_STOP_WITH_TC, + .ops = &sdhci_intel_byt_ops, }; static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = { @@ -405,6 +453,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = { SDHCI_QUIRK2_PRESET_VALUE_BROKEN, .allow_runtime_pm = true, .probe_slot = byt_sdio_probe_slot, + .ops = &sdhci_intel_byt_ops, }; static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { @@ -415,6 +464,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { .allow_runtime_pm = true, .own_cd_for_runtime_pm = true, .probe_slot = byt_sd_probe_slot, + .ops = &sdhci_intel_byt_ops, }; /* Define Host controllers for Intel Merrifield platform */ @@ -1648,7 +1698,9 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot( } host->hw_name = "PCI"; - host->ops = &sdhci_pci_ops; + host->ops = chip->fixes && chip->fixes->ops ? + chip->fixes->ops : + &sdhci_pci_ops; host->quirks = chip->quirks; host->quirks2 = chip->quirks2; diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h index 9c7c08b93223..6bccf56bc5ff 100644 --- a/drivers/mmc/host/sdhci-pci.h +++ b/drivers/mmc/host/sdhci-pci.h @@ -65,6 +65,8 @@ struct sdhci_pci_fixes { int (*suspend) (struct sdhci_pci_chip *); int (*resume) (struct sdhci_pci_chip *); + + const struct sdhci_ops *ops; }; struct sdhci_pci_slot { diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index dd1938d341f7..d0f5c05fbc19 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -315,7 +315,7 @@ static void pxav3_set_power(struct sdhci_host *host, unsigned char mode, struct mmc_host *mmc = host->mmc; u8 pwr = host->pwr; - sdhci_set_power(host, mode, vdd); + sdhci_set_power_noreg(host, mode, vdd); if (host->pwr == pwr) return; diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 48055666c655..71654b90227f 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -687,7 +687,7 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd) * host->clock is in Hz. target_timeout is in us. * Hence, us = 1000000 * cycles / Hz. Round up. */ - val = 1000000 * data->timeout_clks; + val = 1000000ULL * data->timeout_clks; if (do_div(val, host->clock)) target_timeout++; target_timeout += val; @@ -1077,6 +1077,10 @@ void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) /* Initially, a command has no error */ cmd->error = 0; + if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && + cmd->opcode == MMC_STOP_TRANSMISSION) + cmd->flags |= MMC_RSP_BUSY; + /* Wait max 10 ms */ timeout = 10; @@ -1390,8 +1394,8 @@ static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode, sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); } -void sdhci_set_power(struct sdhci_host *host, unsigned char mode, - unsigned short vdd) +void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) { u8 pwr = 0; @@ -1455,20 +1459,17 @@ void sdhci_set_power(struct sdhci_host *host, unsigned char mode, mdelay(10); } } -EXPORT_SYMBOL_GPL(sdhci_set_power); +EXPORT_SYMBOL_GPL(sdhci_set_power_noreg); -static void __sdhci_set_power(struct sdhci_host *host, unsigned char mode, - unsigned short vdd) +void sdhci_set_power(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) { - struct mmc_host *mmc = host->mmc; - - if (host->ops->set_power) - host->ops->set_power(host, mode, vdd); - else if (!IS_ERR(mmc->supply.vmmc)) - sdhci_set_power_reg(host, mode, vdd); + if (IS_ERR(host->mmc->supply.vmmc)) + sdhci_set_power_noreg(host, mode, vdd); else - sdhci_set_power(host, mode, vdd); + sdhci_set_power_reg(host, mode, vdd); } +EXPORT_SYMBOL_GPL(sdhci_set_power); /*****************************************************************************\ * * @@ -1609,7 +1610,10 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) } } - __sdhci_set_power(host, ios->power_mode, ios->vdd); + if (host->ops->set_power) + host->ops->set_power(host, ios->power_mode, ios->vdd); + else + sdhci_set_power(host, ios->power_mode, ios->vdd); if (host->ops->platform_send_init_74_clocks) host->ops->platform_send_init_74_clocks(host, ios->power_mode); @@ -2409,7 +2413,7 @@ static void sdhci_timeout_data_timer(unsigned long data) * * \*****************************************************************************/ -static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *mask) +static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask) { if (!host->cmd) { /* @@ -2453,11 +2457,6 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *mask) return; } - if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) && - !(host->cmd->flags & MMC_RSP_BUSY) && !host->data && - host->cmd->opcode == MMC_STOP_TRANSMISSION) - *mask &= ~SDHCI_INT_DATA_END; - if (intmask & SDHCI_INT_RESPONSE) sdhci_finish_command(host); } @@ -2680,8 +2679,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) } if (intmask & SDHCI_INT_CMD_MASK) - sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, - &intmask); + sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK); if (intmask & SDHCI_INT_DATA_MASK) sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK); diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index c722cd23205c..766df17fb7eb 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -683,6 +683,8 @@ u16 sdhci_calc_clk(struct sdhci_host *host, unsigned int clock, void sdhci_set_clock(struct sdhci_host *host, unsigned int clock); void sdhci_set_power(struct sdhci_host *host, unsigned char mode, unsigned short vdd); +void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode, + unsigned short vdd); void sdhci_set_bus_width(struct sdhci_host *host, int width); void sdhci_reset(struct sdhci_host *host, u8 mask); void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing); diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 329381a28edf..79e679d12f3b 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -554,7 +554,7 @@ int nvme_identify_ctrl(struct nvme_ctrl *dev, struct nvme_id_ctrl **id) /* gcc-4.4.4 (at least) has issues with initializers and anon unions */ c.identify.opcode = nvme_admin_identify; - c.identify.cns = cpu_to_le32(1); + c.identify.cns = cpu_to_le32(NVME_ID_CNS_CTRL); *id = kmalloc(sizeof(struct nvme_id_ctrl), GFP_KERNEL); if (!*id) @@ -572,7 +572,7 @@ static int nvme_identify_ns_list(struct nvme_ctrl *dev, unsigned nsid, __le32 *n struct nvme_command c = { }; c.identify.opcode = nvme_admin_identify; - c.identify.cns = cpu_to_le32(2); + c.identify.cns = cpu_to_le32(NVME_ID_CNS_NS_ACTIVE_LIST); c.identify.nsid = cpu_to_le32(nsid); return nvme_submit_sync_cmd(dev->admin_q, &c, ns_list, 0x1000); } @@ -900,9 +900,9 @@ static int nvme_revalidate_ns(struct nvme_ns *ns, struct nvme_id_ns **id) return -ENODEV; } - if (ns->ctrl->vs >= NVME_VS(1, 1)) + if (ns->ctrl->vs >= NVME_VS(1, 1, 0)) memcpy(ns->eui, (*id)->eui64, sizeof(ns->eui)); - if (ns->ctrl->vs >= NVME_VS(1, 2)) + if (ns->ctrl->vs >= NVME_VS(1, 2, 0)) memcpy(ns->uuid, (*id)->nguid, sizeof(ns->uuid)); return 0; @@ -1086,6 +1086,8 @@ static int nvme_wait_ready(struct nvme_ctrl *ctrl, u64 cap, bool enabled) int ret; while ((ret = ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &csts)) == 0) { + if (csts == ~0) + return -ENODEV; if ((csts & NVME_CSTS_RDY) == bit) break; @@ -1240,7 +1242,7 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) } page_shift = NVME_CAP_MPSMIN(cap) + 12; - if (ctrl->vs >= NVME_VS(1, 1)) + if (ctrl->vs >= NVME_VS(1, 1, 0)) ctrl->subsystem = NVME_CAP_NSSRC(cap); ret = nvme_identify_ctrl(ctrl, &id); @@ -1840,7 +1842,7 @@ static void nvme_scan_work(struct work_struct *work) return; nn = le32_to_cpu(id->nn); - if (ctrl->vs >= NVME_VS(1, 1) && + if (ctrl->vs >= NVME_VS(1, 1, 0) && !(ctrl->quirks & NVME_QUIRK_IDENTIFY_CNS)) { if (!nvme_scan_ns_list(ctrl, nn)) goto done; diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 0fc99f0f2571..0248d0e21fee 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -99,6 +99,7 @@ struct nvme_dev { dma_addr_t cmb_dma_addr; u64 cmb_size; u32 cmbsz; + u32 cmbloc; struct nvme_ctrl ctrl; struct completion ioq_wait; }; @@ -893,7 +894,7 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) "I/O %d QID %d timeout, reset controller\n", req->tag, nvmeq->qid); nvme_dev_disable(dev, false); - queue_work(nvme_workq, &dev->reset_work); + nvme_reset(dev); /* * Mark the request as handled, since the inline shutdown @@ -1214,7 +1215,7 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev) u64 cap = lo_hi_readq(dev->bar + NVME_REG_CAP); struct nvme_queue *nvmeq; - dev->subsystem = readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 1) ? + dev->subsystem = readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 1, 0) ? NVME_CAP_NSSRC(cap) : 0; if (dev->subsystem && @@ -1291,7 +1292,7 @@ static void nvme_watchdog_timer(unsigned long data) /* Skip controllers under certain specific conditions. */ if (nvme_should_reset(dev, csts)) { - if (queue_work(nvme_workq, &dev->reset_work)) + if (!nvme_reset(dev)) dev_warn(dev->dev, "Failed status: 0x%x, reset controller.\n", csts); @@ -1331,28 +1332,37 @@ static int nvme_create_io_queues(struct nvme_dev *dev) return ret >= 0 ? 0 : ret; } +static ssize_t nvme_cmb_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct nvme_dev *ndev = to_nvme_dev(dev_get_drvdata(dev)); + + return snprintf(buf, PAGE_SIZE, "cmbloc : x%08x\ncmbsz : x%08x\n", + ndev->cmbloc, ndev->cmbsz); +} +static DEVICE_ATTR(cmb, S_IRUGO, nvme_cmb_show, NULL); + static void __iomem *nvme_map_cmb(struct nvme_dev *dev) { u64 szu, size, offset; - u32 cmbloc; resource_size_t bar_size; struct pci_dev *pdev = to_pci_dev(dev->dev); void __iomem *cmb; dma_addr_t dma_addr; - if (!use_cmb_sqes) - return NULL; - dev->cmbsz = readl(dev->bar + NVME_REG_CMBSZ); if (!(NVME_CMB_SZ(dev->cmbsz))) return NULL; + dev->cmbloc = readl(dev->bar + NVME_REG_CMBLOC); - cmbloc = readl(dev->bar + NVME_REG_CMBLOC); + if (!use_cmb_sqes) + return NULL; szu = (u64)1 << (12 + 4 * NVME_CMB_SZU(dev->cmbsz)); size = szu * NVME_CMB_SZ(dev->cmbsz); - offset = szu * NVME_CMB_OFST(cmbloc); - bar_size = pci_resource_len(pdev, NVME_CMB_BIR(cmbloc)); + offset = szu * NVME_CMB_OFST(dev->cmbloc); + bar_size = pci_resource_len(pdev, NVME_CMB_BIR(dev->cmbloc)); if (offset > bar_size) return NULL; @@ -1365,7 +1375,7 @@ static void __iomem *nvme_map_cmb(struct nvme_dev *dev) if (size > bar_size - offset) size = bar_size - offset; - dma_addr = pci_resource_start(pdev, NVME_CMB_BIR(cmbloc)) + offset; + dma_addr = pci_resource_start(pdev, NVME_CMB_BIR(dev->cmbloc)) + offset; cmb = ioremap_wc(dma_addr, size); if (!cmb) return NULL; @@ -1511,9 +1521,9 @@ static int nvme_delete_queue(struct nvme_queue *nvmeq, u8 opcode) return 0; } -static void nvme_disable_io_queues(struct nvme_dev *dev) +static void nvme_disable_io_queues(struct nvme_dev *dev, int queues) { - int pass, queues = dev->online_queues - 1; + int pass; unsigned long timeout; u8 opcode = nvme_admin_delete_sq; @@ -1616,9 +1626,25 @@ static int nvme_pci_enable(struct nvme_dev *dev) dev->q_depth); } - if (readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 2)) + /* + * CMBs can currently only exist on >=1.2 PCIe devices. We only + * populate sysfs if a CMB is implemented. Note that we add the + * CMB attribute to the nvme_ctrl kobj which removes the need to remove + * it on exit. Since nvme_dev_attrs_group has no name we can pass + * NULL as final argument to sysfs_add_file_to_group. + */ + + if (readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 2, 0)) { dev->cmb = nvme_map_cmb(dev); + if (dev->cmbsz) { + if (sysfs_add_file_to_group(&dev->ctrl.device->kobj, + &dev_attr_cmb.attr, NULL)) + dev_warn(dev->dev, + "failed to add sysfs attribute for CMB\n"); + } + } + pci_enable_pcie_error_reporting(pdev); pci_save_state(pdev); return 0; @@ -1649,7 +1675,7 @@ static void nvme_pci_disable(struct nvme_dev *dev) static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown) { - int i; + int i, queues; u32 csts = -1; del_timer_sync(&dev->watchdog_timer); @@ -1660,6 +1686,7 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown) csts = readl(dev->bar + NVME_REG_CSTS); } + queues = dev->online_queues - 1; for (i = dev->queue_count - 1; i > 0; i--) nvme_suspend_queue(dev->queues[i]); @@ -1671,7 +1698,7 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown) if (dev->queue_count) nvme_suspend_queue(dev->queues[0]); } else { - nvme_disable_io_queues(dev); + nvme_disable_io_queues(dev, queues); nvme_disable_admin_queue(dev, shutdown); } nvme_pci_disable(dev); @@ -1818,11 +1845,10 @@ static int nvme_reset(struct nvme_dev *dev) { if (!dev->ctrl.admin_q || blk_queue_dying(dev->ctrl.admin_q)) return -ENODEV; - + if (work_busy(&dev->reset_work)) + return -ENODEV; if (!queue_work(nvme_workq, &dev->reset_work)) return -EBUSY; - - flush_work(&dev->reset_work); return 0; } @@ -1846,7 +1872,12 @@ static int nvme_pci_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val) static int nvme_pci_reset_ctrl(struct nvme_ctrl *ctrl) { - return nvme_reset(to_nvme_dev(ctrl)); + struct nvme_dev *dev = to_nvme_dev(ctrl); + int ret = nvme_reset(dev); + + if (!ret) + flush_work(&dev->reset_work); + return ret; } static const struct nvme_ctrl_ops nvme_pci_ctrl_ops = { @@ -1940,7 +1971,7 @@ static void nvme_reset_notify(struct pci_dev *pdev, bool prepare) if (prepare) nvme_dev_disable(dev, false); else - queue_work(nvme_workq, &dev->reset_work); + nvme_reset(dev); } static void nvme_shutdown(struct pci_dev *pdev) @@ -2009,7 +2040,7 @@ static int nvme_resume(struct device *dev) struct pci_dev *pdev = to_pci_dev(dev); struct nvme_dev *ndev = pci_get_drvdata(pdev); - queue_work(nvme_workq, &ndev->reset_work); + nvme_reset(ndev); return 0; } #endif @@ -2048,7 +2079,7 @@ static pci_ers_result_t nvme_slot_reset(struct pci_dev *pdev) dev_info(dev->ctrl.device, "restart after slot reset\n"); pci_restore_state(pdev); - queue_work(nvme_workq, &dev->reset_work); + nvme_reset(dev); return PCI_ERS_RESULT_RECOVERED; } diff --git a/drivers/nvme/host/scsi.c b/drivers/nvme/host/scsi.c index c2a0a1c7d05d..3eaa4d27801e 100644 --- a/drivers/nvme/host/scsi.c +++ b/drivers/nvme/host/scsi.c @@ -606,7 +606,7 @@ static int nvme_fill_device_id_eui64(struct nvme_ns *ns, struct sg_io_hdr *hdr, eui = id_ns->eui64; len = sizeof(id_ns->eui64); - if (ns->ctrl->vs >= NVME_VS(1, 2)) { + if (ns->ctrl->vs >= NVME_VS(1, 2, 0)) { if (bitmap_empty(eui, len * 8)) { eui = id_ns->nguid; len = sizeof(id_ns->nguid); @@ -679,7 +679,7 @@ static int nvme_trans_device_id_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, { int res; - if (ns->ctrl->vs >= NVME_VS(1, 1)) { + if (ns->ctrl->vs >= NVME_VS(1, 1, 0)) { res = nvme_fill_device_id_eui64(ns, hdr, resp, alloc_len); if (res != -EOPNOTSUPP) return res; diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index 7ab9c9381b98..6fe4c48a21e4 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -199,7 +199,7 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) */ /* we support multiple ports and multiples hosts: */ - id->mic = (1 << 0) | (1 << 1); + id->cmic = (1 << 0) | (1 << 1); /* no limit on data transfer sizes for now */ id->mdts = 0; @@ -511,13 +511,13 @@ int nvmet_parse_admin_cmd(struct nvmet_req *req) case nvme_admin_identify: req->data_len = 4096; switch (le32_to_cpu(cmd->identify.cns)) { - case 0x00: + case NVME_ID_CNS_NS: req->execute = nvmet_execute_identify_ns; return 0; - case 0x01: + case NVME_ID_CNS_CTRL: req->execute = nvmet_execute_identify_ctrl; return 0; - case 0x02: + case NVME_ID_CNS_NS_ACTIVE_LIST: req->execute = nvmet_execute_identify_nslist; return 0; } diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 6559d5afa7bf..b4cacb6f0258 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -882,7 +882,7 @@ struct nvmet_subsys *nvmet_subsys_alloc(const char *subsysnqn, if (!subsys) return NULL; - subsys->ver = (1 << 16) | (2 << 8) | 1; /* NVMe 1.2.1 */ + subsys->ver = NVME_VS(1, 2, 1); /* NVMe 1.2.1 */ switch (type) { case NVME_NQN_NVME: diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c index 6f65646e89cf..12f39eea569f 100644 --- a/drivers/nvme/target/discovery.c +++ b/drivers/nvme/target/discovery.c @@ -54,7 +54,7 @@ static void nvmet_format_discovery_entry(struct nvmf_disc_rsp_page_hdr *hdr, /* we support only dynamic controllers */ e->cntlid = cpu_to_le16(NVME_CNTLID_DYNAMIC); e->asqsz = cpu_to_le16(NVMF_AQ_DEPTH); - e->nqntype = type; + e->subtype = type; memcpy(e->trsvcid, port->disc_addr.trsvcid, NVMF_TRSVCID_SIZE); memcpy(e->traddr, port->disc_addr.traddr, NVMF_TRADDR_SIZE); memcpy(e->tsas.common, port->disc_addr.tsas.common, NVMF_TSAS_SIZE); @@ -187,7 +187,7 @@ int nvmet_parse_discovery_cmd(struct nvmet_req *req) case nvme_admin_identify: req->data_len = 4096; switch (le32_to_cpu(cmd->identify.cns)) { - case 0x01: + case NVME_ID_CNS_CTRL: req->execute = nvmet_execute_identify_disc_ctrl; return 0; diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c index 2cb7315e26d0..653707996342 100644 --- a/drivers/pci/host/pci-layerscape.c +++ b/drivers/pci/host/pci-layerscape.c @@ -247,6 +247,7 @@ static int __init ls_pcie_probe(struct platform_device *pdev) pp = &pcie->pp; pp->dev = dev; + pcie->drvdata = match->data; pp->ops = pcie->drvdata->ops; dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); @@ -256,7 +257,6 @@ static int __init ls_pcie_probe(struct platform_device *pdev) return PTR_ERR(pcie->pp.dbi_base); } - pcie->drvdata = match->data; pcie->lut = pcie->pp.dbi_base + pcie->drvdata->lut_offset; if (!ls_pcie_is_bridge(pcie)) diff --git a/drivers/pci/host/pcie-designware-plat.c b/drivers/pci/host/pcie-designware-plat.c index 537f58a664fa..8df6312ed300 100644 --- a/drivers/pci/host/pcie-designware-plat.c +++ b/drivers/pci/host/pcie-designware-plat.c @@ -3,7 +3,7 @@ * * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com) * - * Authors: Joao Pinto <jpinto@synopsys.com> + * Authors: Joao Pinto <jpmpinto@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c index c2ac7646b99f..a8ac4bcef2c0 100644 --- a/drivers/perf/xgene_pmu.c +++ b/drivers/perf/xgene_pmu.c @@ -1011,7 +1011,7 @@ xgene_pmu_dev_ctx *acpi_get_pmu_hw_inf(struct xgene_pmu *xgene_pmu, rc = acpi_dev_get_resources(adev, &resource_list, acpi_pmu_dev_add_resource, &res); acpi_dev_free_resource_list(&resource_list); - if (rc < 0 || IS_ERR(&res)) { + if (rc < 0) { dev_err(dev, "PMU type %d: No resource address found\n", type); goto err; } diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 637cf8973c9e..581001989937 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -384,7 +384,7 @@ void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf, /* if (len > rec_len): * dump data up to cap_len ignoring small duplicate in rec->payload */ - spin_lock_irqsave(&dbf->pay_lock, flags); + spin_lock(&dbf->pay_lock); memset(payload, 0, sizeof(*payload)); memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN); payload->fsf_req_id = req_id; diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index a8762a3efeef..532474109624 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -2586,7 +2586,6 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd) struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); u32 fd_ioasc; - char *envp[] = { "ASYNC_ERR_LOG=1", NULL }; if (ioa_cfg->sis64) fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); @@ -2607,8 +2606,8 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd) } list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q); + schedule_work(&ioa_cfg->work_q); hostrcb = ipr_get_free_hostrcb(ioa_cfg); - kobject_uevent_env(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE, envp); ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); } diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c index 54d446c9f56e..b8d3b97b217a 100644 --- a/drivers/scsi/scsi_dh.c +++ b/drivers/scsi/scsi_dh.c @@ -36,9 +36,9 @@ struct scsi_dh_blist { }; static const struct scsi_dh_blist scsi_dh_blist[] = { - {"DGC", "RAID", "clariion" }, - {"DGC", "DISK", "clariion" }, - {"DGC", "VRAID", "clariion" }, + {"DGC", "RAID", "emc" }, + {"DGC", "DISK", "emc" }, + {"DGC", "VRAID", "emc" }, {"COMPAQ", "MSA1000 VOLUME", "hp_sw" }, {"COMPAQ", "HSV110", "hp_sw" }, diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 212e98d940bc..6f7128f49c30 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1307,7 +1307,6 @@ static void scsi_sequential_lun_scan(struct scsi_target *starget, static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, enum scsi_scan_mode rescan) { - char devname[64]; unsigned char scsi_cmd[MAX_COMMAND_SIZE]; unsigned int length; u64 lun; @@ -1349,9 +1348,6 @@ static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, } } - sprintf(devname, "host %d channel %d id %d", - shost->host_no, sdev->channel, sdev->id); - /* * Allocate enough to hold the header (the same size as one scsi_lun) * plus the number of luns we are requesting. 511 was the default @@ -1470,12 +1466,12 @@ retry: out_err: kfree(lun_data); out: - scsi_device_put(sdev); if (scsi_device_created(sdev)) /* * the sdev we used didn't appear in the report luns scan */ __scsi_remove_device(sdev); + scsi_device_put(sdev); return ret; } diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 39b928c2849d..b7d747e92c7a 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -1804,6 +1804,10 @@ int iscsit_process_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd, * Otherwise, initiator is not expecting a NOPIN is response. * Just ignore for now. */ + + if (cmd) + iscsit_free_cmd(cmd, false); + return 0; } EXPORT_SYMBOL(iscsit_process_nop_out); @@ -2982,7 +2986,7 @@ iscsit_build_nopin_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn, pr_debug("Built NOPIN %s Response ITT: 0x%08x, TTT: 0x%08x," " StatSN: 0x%08x, Length %u\n", (nopout_response) ? - "Solicitied" : "Unsolicitied", cmd->init_task_tag, + "Solicited" : "Unsolicited", cmd->init_task_tag, cmd->targ_xfer_tag, cmd->stat_sn, cmd->buf_ptr_size); } EXPORT_SYMBOL(iscsit_build_nopin_rsp); diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index adf419fa4291..15f79a2ca34a 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -434,7 +434,7 @@ static int iscsi_login_zero_tsih_s2( /* * Make MaxRecvDataSegmentLength PAGE_SIZE aligned for - * Immediate Data + Unsolicitied Data-OUT if necessary.. + * Immediate Data + Unsolicited Data-OUT if necessary.. */ param = iscsi_find_param_from_key("MaxRecvDataSegmentLength", conn->param_list); @@ -646,7 +646,7 @@ static void iscsi_post_login_start_timers(struct iscsi_conn *conn) { struct iscsi_session *sess = conn->sess; /* - * FIXME: Unsolicitied NopIN support for ISER + * FIXME: Unsolicited NopIN support for ISER */ if (conn->conn_transport->transport_type == ISCSI_INFINIBAND) return; diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 6094a6beddde..7dfefd66df93 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -754,15 +754,7 @@ EXPORT_SYMBOL(target_complete_cmd); void target_complete_cmd_with_length(struct se_cmd *cmd, u8 scsi_status, int length) { - if (scsi_status != SAM_STAT_GOOD) { - return; - } - - /* - * Calculate new residual count based upon length of SCSI data - * transferred. - */ - if (length < cmd->data_length) { + if (scsi_status == SAM_STAT_GOOD && length < cmd->data_length) { if (cmd->se_cmd_flags & SCF_UNDERFLOW_BIT) { cmd->residual_count += cmd->data_length - length; } else { @@ -771,12 +763,6 @@ void target_complete_cmd_with_length(struct se_cmd *cmd, u8 scsi_status, int len } cmd->data_length = length; - } else if (length > cmd->data_length) { - cmd->se_cmd_flags |= SCF_OVERFLOW_BIT; - cmd->residual_count = length - cmd->data_length; - } else { - cmd->se_cmd_flags &= ~(SCF_OVERFLOW_BIT | SCF_UNDERFLOW_BIT); - cmd->residual_count = 0; } target_complete_cmd(cmd, scsi_status); @@ -1706,6 +1692,7 @@ void transport_generic_request_failure(struct se_cmd *cmd, case TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED: case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED: case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED: + case TCM_COPY_TARGET_DEVICE_NOT_REACHABLE: break; case TCM_OUT_OF_RESOURCES: sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; @@ -2547,8 +2534,12 @@ int target_get_sess_cmd(struct se_cmd *se_cmd, bool ack_kref) * fabric acknowledgement that requires two target_put_sess_cmd() * invocations before se_cmd descriptor release. */ - if (ack_kref) - kref_get(&se_cmd->cmd_kref); + if (ack_kref) { + if (!kref_get_unless_zero(&se_cmd->cmd_kref)) + return -EINVAL; + + se_cmd->se_cmd_flags |= SCF_ACK_KREF; + } spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); if (se_sess->sess_tearing_down) { @@ -2627,7 +2618,7 @@ EXPORT_SYMBOL(target_put_sess_cmd); */ void target_sess_cmd_list_set_waiting(struct se_session *se_sess) { - struct se_cmd *se_cmd; + struct se_cmd *se_cmd, *tmp_cmd; unsigned long flags; int rc; @@ -2639,14 +2630,16 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess) se_sess->sess_tearing_down = 1; list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list); - list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) { + list_for_each_entry_safe(se_cmd, tmp_cmd, + &se_sess->sess_wait_list, se_cmd_list) { rc = kref_get_unless_zero(&se_cmd->cmd_kref); if (rc) { se_cmd->cmd_wait_set = 1; spin_lock(&se_cmd->t_state_lock); se_cmd->transport_state |= CMD_T_FABRIC_STOP; spin_unlock(&se_cmd->t_state_lock); - } + } else + list_del_init(&se_cmd->se_cmd_list); } spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); @@ -2871,6 +2864,12 @@ static const struct sense_info sense_info_table[] = { .ascq = 0x03, /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */ .add_sector_info = true, }, + [TCM_COPY_TARGET_DEVICE_NOT_REACHABLE] = { + .key = COPY_ABORTED, + .asc = 0x0d, + .ascq = 0x02, /* COPY TARGET DEVICE NOT REACHABLE */ + + }, [TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE] = { /* * Returning ILLEGAL REQUEST would cause immediate IO errors on diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 62bf4fe5704a..47562509b489 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -96,7 +96,7 @@ struct tcmu_dev { size_t dev_size; u32 cmdr_size; u32 cmdr_last_cleaned; - /* Offset of data ring from start of mb */ + /* Offset of data area from start of mb */ /* Must add data_off and mb_addr to get the address */ size_t data_off; size_t data_size; @@ -349,7 +349,7 @@ static inline size_t spc_bitmap_free(unsigned long *bitmap) /* * We can't queue a command until we have space available on the cmd ring *and* - * space available on the data ring. + * space available on the data area. * * Called with ring lock held. */ @@ -389,7 +389,8 @@ static bool is_ring_space_avail(struct tcmu_dev *udev, size_t cmd_size, size_t d return true; } -static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) +static sense_reason_t +tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) { struct tcmu_dev *udev = tcmu_cmd->tcmu_dev; struct se_cmd *se_cmd = tcmu_cmd->se_cmd; @@ -405,7 +406,7 @@ static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) DECLARE_BITMAP(old_bitmap, DATA_BLOCK_BITS); if (test_bit(TCMU_DEV_BIT_BROKEN, &udev->flags)) - return -EINVAL; + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; /* * Must be a certain minimum size for response sense info, but @@ -432,11 +433,14 @@ static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents)); data_length += se_cmd->t_bidi_data_sg->length; } - if ((command_size > (udev->cmdr_size / 2)) - || data_length > udev->data_size) - pr_warn("TCMU: Request of size %zu/%zu may be too big for %u/%zu " - "cmd/data ring buffers\n", command_size, data_length, + if ((command_size > (udev->cmdr_size / 2)) || + data_length > udev->data_size) { + pr_warn("TCMU: Request of size %zu/%zu is too big for %u/%zu " + "cmd ring/data area\n", command_size, data_length, udev->cmdr_size, udev->data_size); + spin_unlock_irq(&udev->cmdr_lock); + return TCM_INVALID_CDB_FIELD; + } while (!is_ring_space_avail(udev, command_size, data_length)) { int ret; @@ -450,7 +454,7 @@ static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) finish_wait(&udev->wait_cmdr, &__wait); if (!ret) { pr_warn("tcmu: command timed out\n"); - return -ETIMEDOUT; + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } spin_lock_irq(&udev->cmdr_lock); @@ -487,9 +491,7 @@ static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) bitmap_copy(old_bitmap, udev->data_bitmap, DATA_BLOCK_BITS); - /* - * Fix up iovecs, and handle if allocation in data ring wrapped. - */ + /* Handle allocating space from the data area */ iov = &entry->req.iov[0]; iov_cnt = 0; copy_to_data_area = (se_cmd->data_direction == DMA_TO_DEVICE @@ -526,10 +528,11 @@ static int tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) mod_timer(&udev->timeout, round_jiffies_up(jiffies + msecs_to_jiffies(TCMU_TIME_OUT))); - return 0; + return TCM_NO_SENSE; } -static int tcmu_queue_cmd(struct se_cmd *se_cmd) +static sense_reason_t +tcmu_queue_cmd(struct se_cmd *se_cmd) { struct se_device *se_dev = se_cmd->se_dev; struct tcmu_dev *udev = TCMU_DEV(se_dev); @@ -538,10 +541,10 @@ static int tcmu_queue_cmd(struct se_cmd *se_cmd) tcmu_cmd = tcmu_alloc_cmd(se_cmd); if (!tcmu_cmd) - return -ENOMEM; + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; ret = tcmu_queue_cmd_ring(tcmu_cmd); - if (ret < 0) { + if (ret != TCM_NO_SENSE) { pr_err("TCMU: Could not queue command\n"); spin_lock_irq(&udev->commands_lock); idr_remove(&udev->commands, tcmu_cmd->cmd_id); @@ -561,7 +564,7 @@ static void tcmu_handle_completion(struct tcmu_cmd *cmd, struct tcmu_cmd_entry * if (test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags)) { /* * cmd has been completed already from timeout, just reclaim - * data ring space and free cmd + * data area space and free cmd */ free_data_area(udev, cmd); @@ -1129,20 +1132,9 @@ static sector_t tcmu_get_blocks(struct se_device *dev) } static sense_reason_t -tcmu_pass_op(struct se_cmd *se_cmd) -{ - int ret = tcmu_queue_cmd(se_cmd); - - if (ret != 0) - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - else - return TCM_NO_SENSE; -} - -static sense_reason_t tcmu_parse_cdb(struct se_cmd *cmd) { - return passthrough_parse_cdb(cmd, tcmu_pass_op); + return passthrough_parse_cdb(cmd, tcmu_queue_cmd); } static const struct target_backend_ops tcmu_ops = { diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c index 75cd85426ae3..094a1440eacb 100644 --- a/drivers/target/target_core_xcopy.c +++ b/drivers/target/target_core_xcopy.c @@ -104,7 +104,7 @@ static int target_xcopy_locate_se_dev_e4(struct se_cmd *se_cmd, struct xcopy_op } mutex_unlock(&g_device_mutex); - pr_err("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n"); + pr_debug_ratelimited("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n"); return -EINVAL; } @@ -185,7 +185,7 @@ static int target_xcopy_parse_tiddesc_e4(struct se_cmd *se_cmd, struct xcopy_op static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, struct xcopy_op *xop, unsigned char *p, - unsigned short tdll) + unsigned short tdll, sense_reason_t *sense_ret) { struct se_device *local_dev = se_cmd->se_dev; unsigned char *desc = p; @@ -193,6 +193,8 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, unsigned short start = 0; bool src = true; + *sense_ret = TCM_INVALID_PARAMETER_LIST; + if (offset != 0) { pr_err("XCOPY target descriptor list length is not" " multiple of %d\n", XCOPY_TARGET_DESC_LEN); @@ -243,9 +245,16 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, true); else rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, false); - - if (rc < 0) + /* + * If a matching IEEE NAA 0x83 descriptor for the requested device + * is not located on this node, return COPY_ABORTED with ASQ/ASQC + * 0x0d/0x02 - COPY_TARGET_DEVICE_NOT_REACHABLE to request the + * initiator to fall back to normal copy method. + */ + if (rc < 0) { + *sense_ret = TCM_COPY_TARGET_DEVICE_NOT_REACHABLE; goto out; + } pr_debug("XCOPY TGT desc: Source dev: %p NAA IEEE WWN: 0x%16phN\n", xop->src_dev, &xop->src_tid_wwn[0]); @@ -653,6 +662,7 @@ static int target_xcopy_read_source( rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, src_dev, &cdb[0], remote_port, true); if (rc < 0) { + ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status; transport_generic_free_cmd(se_cmd, 0); return rc; } @@ -664,6 +674,7 @@ static int target_xcopy_read_source( rc = target_xcopy_issue_pt_cmd(xpt_cmd); if (rc < 0) { + ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status; transport_generic_free_cmd(se_cmd, 0); return rc; } @@ -714,6 +725,7 @@ static int target_xcopy_write_destination( remote_port, false); if (rc < 0) { struct se_cmd *src_cmd = &xop->src_pt_cmd->se_cmd; + ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status; /* * If the failure happened before the t_mem_list hand-off in * target_xcopy_setup_pt_cmd(), Reset memory + clear flag so that @@ -729,6 +741,7 @@ static int target_xcopy_write_destination( rc = target_xcopy_issue_pt_cmd(xpt_cmd); if (rc < 0) { + ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status; se_cmd->se_cmd_flags &= ~SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC; transport_generic_free_cmd(se_cmd, 0); return rc; @@ -815,9 +828,14 @@ static void target_xcopy_do_work(struct work_struct *work) out: xcopy_pt_undepend_remotedev(xop); kfree(xop); - - pr_warn("target_xcopy_do_work: Setting X-COPY CHECK_CONDITION -> sending response\n"); - ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION; + /* + * Don't override an error scsi status if it has already been set + */ + if (ec_cmd->scsi_status == SAM_STAT_GOOD) { + pr_warn_ratelimited("target_xcopy_do_work: rc: %d, Setting X-COPY" + " CHECK_CONDITION -> sending response\n", rc); + ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION; + } target_complete_cmd(ec_cmd, SAM_STAT_CHECK_CONDITION); } @@ -875,7 +893,7 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) " tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage, tdll, sdll, inline_dl); - rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll); + rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll, &ret); if (rc <= 0) goto out; diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 216e18cc9133..ff5de9a96643 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -572,10 +572,10 @@ static void ft_send_work(struct work_struct *work) if (target_submit_cmd(&cmd->se_cmd, cmd->sess->se_sess, fcp->fc_cdb, &cmd->ft_sense_buffer[0], scsilun_to_int(&fcp->fc_lun), ntohl(fcp->fc_dl), task_attr, data_dir, - TARGET_SCF_ACK_KREF)) + TARGET_SCF_ACK_KREF | TARGET_SCF_USE_CPUID)) goto err; - pr_debug("r_ctl %x alloc target_submit_cmd\n", fh->fh_r_ctl); + pr_debug("r_ctl %x target_submit_cmd %p\n", fh->fh_r_ctl, cmd); return; err: diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index 6ffbb603d912..fd5c3de79470 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -39,6 +39,11 @@ #include "tcm_fc.h" +#define TFC_SESS_DBG(lport, fmt, args...) \ + pr_debug("host%u: rport %6.6x: " fmt, \ + (lport)->host->host_no, \ + (lport)->port_id, ##args ) + static void ft_sess_delete_all(struct ft_tport *); /* @@ -167,24 +172,29 @@ static struct ft_sess *ft_sess_get(struct fc_lport *lport, u32 port_id) struct ft_tport *tport; struct hlist_head *head; struct ft_sess *sess; + char *reason = "no session created"; rcu_read_lock(); tport = rcu_dereference(lport->prov[FC_TYPE_FCP]); - if (!tport) + if (!tport) { + reason = "not an FCP port"; goto out; + } head = &tport->hash[ft_sess_hash(port_id)]; hlist_for_each_entry_rcu(sess, head, hash) { if (sess->port_id == port_id) { kref_get(&sess->kref); rcu_read_unlock(); - pr_debug("port_id %x found %p\n", port_id, sess); + TFC_SESS_DBG(lport, "port_id %x found %p\n", + port_id, sess); return sess; } } out: rcu_read_unlock(); - pr_debug("port_id %x not found\n", port_id); + TFC_SESS_DBG(lport, "port_id %x not found, %s\n", + port_id, reason); return NULL; } @@ -195,7 +205,7 @@ static int ft_sess_alloc_cb(struct se_portal_group *se_tpg, struct ft_tport *tport = sess->tport; struct hlist_head *head = &tport->hash[ft_sess_hash(sess->port_id)]; - pr_debug("port_id %x sess %p\n", sess->port_id, sess); + TFC_SESS_DBG(tport->lport, "port_id %x sess %p\n", sess->port_id, sess); hlist_add_head_rcu(&sess->hash, head); tport->sess_count++; @@ -223,7 +233,7 @@ static struct ft_sess *ft_sess_create(struct ft_tport *tport, u32 port_id, sess = kzalloc(sizeof(*sess), GFP_KERNEL); if (!sess) - return NULL; + return ERR_PTR(-ENOMEM); kref_init(&sess->kref); /* ref for table entry */ sess->tport = tport; @@ -234,8 +244,9 @@ static struct ft_sess *ft_sess_create(struct ft_tport *tport, u32 port_id, TARGET_PROT_NORMAL, &initiatorname[0], sess, ft_sess_alloc_cb); if (IS_ERR(sess->se_sess)) { + int rc = PTR_ERR(sess->se_sess); kfree(sess); - return NULL; + sess = ERR_PTR(rc); } return sess; } @@ -319,7 +330,7 @@ void ft_sess_close(struct se_session *se_sess) mutex_unlock(&ft_lport_lock); return; } - pr_debug("port_id %x\n", port_id); + TFC_SESS_DBG(sess->tport->lport, "port_id %x close session\n", port_id); ft_sess_unhash(sess); mutex_unlock(&ft_lport_lock); ft_close_sess(sess); @@ -379,8 +390,13 @@ static int ft_prli_locked(struct fc_rport_priv *rdata, u32 spp_len, if (!(fcp_parm & FCP_SPPF_INIT_FCN)) return FC_SPP_RESP_CONF; sess = ft_sess_create(tport, rdata->ids.port_id, rdata); - if (!sess) - return FC_SPP_RESP_RES; + if (IS_ERR(sess)) { + if (PTR_ERR(sess) == -EACCES) { + spp->spp_flags &= ~FC_SPP_EST_IMG_PAIR; + return FC_SPP_RESP_CONF; + } else + return FC_SPP_RESP_RES; + } if (!sess->params) rdata->prli_count++; sess->params = fcp_parm; @@ -423,8 +439,8 @@ static int ft_prli(struct fc_rport_priv *rdata, u32 spp_len, mutex_lock(&ft_lport_lock); ret = ft_prli_locked(rdata, spp_len, rspp, spp); mutex_unlock(&ft_lport_lock); - pr_debug("port_id %x flags %x ret %x\n", - rdata->ids.port_id, rspp ? rspp->spp_flags : 0, ret); + TFC_SESS_DBG(rdata->local_port, "port_id %x flags %x ret %x\n", + rdata->ids.port_id, rspp ? rspp->spp_flags : 0, ret); return ret; } @@ -477,11 +493,11 @@ static void ft_recv(struct fc_lport *lport, struct fc_frame *fp) struct ft_sess *sess; u32 sid = fc_frame_sid(fp); - pr_debug("sid %x\n", sid); + TFC_SESS_DBG(lport, "recv sid %x\n", sid); sess = ft_sess_get(lport, sid); if (!sess) { - pr_debug("sid %x sess lookup failed\n", sid); + TFC_SESS_DBG(lport, "sid %x sess lookup failed\n", sid); /* TBD XXX - if FCP_CMND, send PRLO */ fc_frame_free(fp); return; diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c index e473e3b23720..6d1fbda0f461 100644 --- a/drivers/watchdog/wdat_wdt.c +++ b/drivers/watchdog/wdat_wdt.c @@ -499,6 +499,10 @@ static int wdat_wdt_resume_noirq(struct device *dev) ret = wdat_wdt_enable_reboot(wdat); if (ret) return ret; + + ret = wdat_wdt_ping(&wdat->wdd); + if (ret) + return ret; } return wdat_wdt_start(&wdat->wdd); |
