diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpi_memhotplug.c | 19 | ||||
| -rw-r--r-- | drivers/acpi/acpi_video.c | 37 | ||||
| -rw-r--r-- | drivers/acpi/acpica/exconfig.c | 18 | ||||
| -rw-r--r-- | drivers/acpi/acpica/tbxfload.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/arm64/iort.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/blacklist.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/nfit/core.c | 32 | ||||
| -rw-r--r-- | drivers/acpi/nfit/nfit.h | 24 | ||||
| -rw-r--r-- | drivers/acpi/pci_root.c | 12 |
9 files changed, 110 insertions, 50 deletions
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index db013dc21c02..e294f44a7850 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -155,16 +155,6 @@ static int acpi_memory_check_device(struct acpi_memory_device *mem_device) return 0; } -static unsigned long acpi_meminfo_start_pfn(struct acpi_memory_info *info) -{ - return PFN_DOWN(info->start_addr); -} - -static unsigned long acpi_meminfo_end_pfn(struct acpi_memory_info *info) -{ - return PFN_UP(info->start_addr + info->length-1); -} - static int acpi_bind_memblk(struct memory_block *mem, void *arg) { return acpi_bind_one(&mem->dev, arg); @@ -173,9 +163,8 @@ static int acpi_bind_memblk(struct memory_block *mem, void *arg) static int acpi_bind_memory_blocks(struct acpi_memory_info *info, struct acpi_device *adev) { - return walk_memory_range(acpi_meminfo_start_pfn(info), - acpi_meminfo_end_pfn(info), adev, - acpi_bind_memblk); + return walk_memory_blocks(info->start_addr, info->length, adev, + acpi_bind_memblk); } static int acpi_unbind_memblk(struct memory_block *mem, void *arg) @@ -186,8 +175,8 @@ static int acpi_unbind_memblk(struct memory_block *mem, void *arg) static void acpi_unbind_memory_blocks(struct acpi_memory_info *info) { - walk_memory_range(acpi_meminfo_start_pfn(info), - acpi_meminfo_end_pfn(info), NULL, acpi_unbind_memblk); + walk_memory_blocks(info->start_addr, info->length, NULL, + acpi_unbind_memblk); } static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 9489ffc06411..4f325e47519f 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -60,6 +60,12 @@ module_param(report_key_events, int, 0644); MODULE_PARM_DESC(report_key_events, "0: none, 1: output changes, 2: brightness changes, 3: all"); +static int hw_changes_brightness = -1; +module_param(hw_changes_brightness, int, 0644); +MODULE_PARM_DESC(hw_changes_brightness, + "Set this to 1 on buggy hw which changes the brightness itself when " + "a hotkey is pressed: -1: auto, 0: normal 1: hw-changes-brightness"); + /* * Whether the struct acpi_video_device_attrib::device_id_scheme bit should be * assumed even if not actually set. @@ -405,6 +411,14 @@ static int video_set_report_key_events(const struct dmi_system_id *id) return 0; } +static int video_hw_changes_brightness( + const struct dmi_system_id *d) +{ + if (hw_changes_brightness == -1) + hw_changes_brightness = 1; + return 0; +} + static const struct dmi_system_id video_dmi_table[] = { /* * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121 @@ -529,6 +543,21 @@ static const struct dmi_system_id video_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"), }, }, + /* + * Some machines change the brightness themselves when a brightness + * hotkey gets pressed, despite us telling them not to. In this case + * acpi_video_device_notify() should only call backlight_force_update( + * BACKLIGHT_UPDATE_HOTKEY) and not do anything else. + */ + { + /* https://bugzilla.kernel.org/show_bug.cgi?id=204077 */ + .callback = video_hw_changes_brightness, + .ident = "Packard Bell EasyNote MZ35", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"), + DMI_MATCH(DMI_PRODUCT_NAME, "EasyNote MZ35"), + }, + }, {} }; @@ -1612,6 +1641,14 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) bus = video_device->video; input = bus->input; + if (hw_changes_brightness > 0) { + if (video_device->backlight) + backlight_force_update(video_device->backlight, + BACKLIGHT_UPDATE_HOTKEY); + acpi_notifier_call_chain(device, event, 0); + return; + } + switch (event) { case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ brightness_switch_event(video_device, event); diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 587aeeeb5070..46a8baf28bd0 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -174,12 +174,11 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, return_ACPI_STATUS(status); } - /* Complete the initialization/resolution of package objects */ + /* Complete the initialization/resolution of new objects */ - status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, 0, - acpi_ns_init_one_package, NULL, NULL, - NULL); + acpi_ex_exit_interpreter(); + acpi_ns_initialize_objects(); + acpi_ex_enter_interpreter(); /* Parameter Data (optional) */ @@ -437,12 +436,11 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, return_ACPI_STATUS(status); } - /* Complete the initialization/resolution of package objects */ + /* Complete the initialization/resolution of new objects */ - status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, 0, - acpi_ns_init_one_package, NULL, NULL, - NULL); + acpi_ex_exit_interpreter(); + acpi_ns_initialize_objects(); + acpi_ex_enter_interpreter(); /* Store the ddb_handle into the Target operand */ diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index ef8f8a9f3c9c..86f1693f6d29 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -297,15 +297,11 @@ acpi_status acpi_load_table(struct acpi_table_header *table) status = acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table), ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE, &table_index); - if (ACPI_SUCCESS(status)) { - /* Complete the initialization/resolution of package objects */ - status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, - ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, 0, - acpi_ns_init_one_package, - NULL, NULL, NULL); + /* Complete the initialization/resolution of new objects */ + + acpi_ns_initialize_objects(); } return_ACPI_STATUS(status); diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index d4551e33fa71..8569b79e8b58 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -611,8 +611,8 @@ static int iort_dev_find_its_id(struct device *dev, u32 req_id, /* Move to ITS specific data */ its = (struct acpi_iort_its_group *)node->node_data; - if (idx > its->its_count) { - dev_err(dev, "requested ITS ID index [%d] is greater than available [%d]\n", + if (idx >= its->its_count) { + dev_err(dev, "requested ITS ID index [%d] overruns ITS entries [%d]\n", idx, its->its_count); return -ENXIO; } diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index ad2c565f5cbe..a86a770c9b79 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -17,7 +17,9 @@ #include "internal.h" +#ifdef CONFIG_DMI static const struct dmi_system_id acpi_rev_dmi_table[] __initconst; +#endif /* * POLICY: If *anything* doesn't work, put it on the blacklist. @@ -61,7 +63,9 @@ int __init acpi_blacklisted(void) } (void)early_acpi_osi_init(); +#ifdef CONFIG_DMI dmi_check_system(acpi_rev_dmi_table); +#endif return blacklisted; } diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 23022cf20d26..1413324982f0 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -1282,7 +1282,7 @@ static ssize_t hw_error_scrub_store(struct device *dev, if (rc) return rc; - device_lock(dev); + nfit_device_lock(dev); nd_desc = dev_get_drvdata(dev); if (nd_desc) { struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc); @@ -1299,7 +1299,7 @@ static ssize_t hw_error_scrub_store(struct device *dev, break; } } - device_unlock(dev); + nfit_device_unlock(dev); if (rc) return rc; return size; @@ -1319,7 +1319,7 @@ static ssize_t scrub_show(struct device *dev, ssize_t rc = -ENXIO; bool busy; - device_lock(dev); + nfit_device_lock(dev); nd_desc = dev_get_drvdata(dev); if (!nd_desc) { device_unlock(dev); @@ -1339,7 +1339,7 @@ static ssize_t scrub_show(struct device *dev, } mutex_unlock(&acpi_desc->init_mutex); - device_unlock(dev); + nfit_device_unlock(dev); return rc; } @@ -1356,14 +1356,14 @@ static ssize_t scrub_store(struct device *dev, if (val != 1) return -EINVAL; - device_lock(dev); + nfit_device_lock(dev); nd_desc = dev_get_drvdata(dev); if (nd_desc) { struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc); rc = acpi_nfit_ars_rescan(acpi_desc, ARS_REQ_LONG); } - device_unlock(dev); + nfit_device_unlock(dev); if (rc) return rc; return size; @@ -1749,9 +1749,9 @@ static void acpi_nvdimm_notify(acpi_handle handle, u32 event, void *data) struct acpi_device *adev = data; struct device *dev = &adev->dev; - device_lock(dev->parent); + nfit_device_lock(dev->parent); __acpi_nvdimm_notify(dev, event); - device_unlock(dev->parent); + nfit_device_unlock(dev->parent); } static bool acpi_nvdimm_has_method(struct acpi_device *adev, char *method) @@ -2426,7 +2426,7 @@ static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw, offset = to_interleave_offset(offset, mmio); writeq(cmd, mmio->addr.base + offset); - nvdimm_flush(nfit_blk->nd_region); + nvdimm_flush(nfit_blk->nd_region, NULL); if (nfit_blk->dimm_flags & NFIT_BLK_DCR_LATCH) readq(mmio->addr.base + offset); @@ -2475,7 +2475,7 @@ static int acpi_nfit_blk_single_io(struct nfit_blk *nfit_blk, } if (rw) - nvdimm_flush(nfit_blk->nd_region); + nvdimm_flush(nfit_blk->nd_region, NULL); rc = read_blk_stat(nfit_blk, lane) ? -EIO : 0; return rc; @@ -3457,8 +3457,8 @@ static int acpi_nfit_flush_probe(struct nvdimm_bus_descriptor *nd_desc) struct device *dev = acpi_desc->dev; /* Bounce the device lock to flush acpi_nfit_add / acpi_nfit_notify */ - device_lock(dev); - device_unlock(dev); + nfit_device_lock(dev); + nfit_device_unlock(dev); /* Bounce the init_mutex to complete initial registration */ mutex_lock(&acpi_desc->init_mutex); @@ -3602,8 +3602,8 @@ void acpi_nfit_shutdown(void *data) * acpi_nfit_ars_rescan() submissions have had a chance to * either submit or see ->cancel set. */ - device_lock(bus_dev); - device_unlock(bus_dev); + nfit_device_lock(bus_dev); + nfit_device_unlock(bus_dev); flush_workqueue(nfit_wq); } @@ -3746,9 +3746,9 @@ EXPORT_SYMBOL_GPL(__acpi_nfit_notify); static void acpi_nfit_notify(struct acpi_device *adev, u32 event) { - device_lock(&adev->dev); + nfit_device_lock(&adev->dev); __acpi_nfit_notify(&adev->dev, adev->handle, event); - device_unlock(&adev->dev); + nfit_device_unlock(&adev->dev); } static const struct acpi_device_id acpi_nfit_ids[] = { diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h index 6ee2b02af73e..24241941181c 100644 --- a/drivers/acpi/nfit/nfit.h +++ b/drivers/acpi/nfit/nfit.h @@ -312,6 +312,30 @@ static inline struct acpi_nfit_desc *to_acpi_desc( return container_of(nd_desc, struct acpi_nfit_desc, nd_desc); } +#ifdef CONFIG_PROVE_LOCKING +static inline void nfit_device_lock(struct device *dev) +{ + device_lock(dev); + mutex_lock(&dev->lockdep_mutex); +} + +static inline void nfit_device_unlock(struct device *dev) +{ + mutex_unlock(&dev->lockdep_mutex); + device_unlock(dev); +} +#else +static inline void nfit_device_lock(struct device *dev) +{ + device_lock(dev); +} + +static inline void nfit_device_unlock(struct device *dev) +{ + device_unlock(dev); +} +#endif + const guid_t *to_nfit_uuid(enum nfit_uuids id); int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *nfit, acpi_size sz); void acpi_nfit_shutdown(void *data); diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 39f5d172e84f..314a187ed572 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -881,6 +881,7 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, int node = acpi_get_node(device->handle); struct pci_bus *bus; struct pci_host_bridge *host_bridge; + union acpi_object *obj; info->root = root; info->bridge = device; @@ -917,6 +918,17 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, if (!(root->osc_control_set & OSC_PCI_EXPRESS_LTR_CONTROL)) host_bridge->native_ltr = 0; + /* + * Evaluate the "PCI Boot Configuration" _DSM Function. If it + * exists and returns 0, we must preserve any PCI resource + * assignments made by firmware for this host bridge. + */ + obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 1, + IGNORE_PCI_BOOT_CONFIG_DSM, NULL); + if (obj && obj->type == ACPI_TYPE_INTEGER && obj->integer.value == 0) + host_bridge->preserve_config = 1; + ACPI_FREE(obj); + pci_scan_child_bus(bus); pci_set_host_bridge_release(host_bridge, acpi_pci_root_release_info, info); |
