diff options
Diffstat (limited to 'drivers/acpi')
-rw-r--r-- | drivers/acpi/Kconfig | 1 | ||||
-rw-r--r-- | drivers/acpi/acpica/aclocal.h | 7 | ||||
-rw-r--r-- | drivers/acpi/acpica/evgpe.c | 17 | ||||
-rw-r--r-- | drivers/acpi/acpica/evxfgpe.c | 67 | ||||
-rw-r--r-- | drivers/acpi/apei/Kconfig | 1 | ||||
-rw-r--r-- | drivers/acpi/apei/erst.c | 136 | ||||
-rw-r--r-- | drivers/acpi/bus.c | 23 | ||||
-rw-r--r-- | drivers/acpi/debugfs.c | 20 | ||||
-rw-r--r-- | drivers/acpi/numa.c | 9 | ||||
-rw-r--r-- | drivers/acpi/osl.c | 31 | ||||
-rw-r--r-- | drivers/acpi/sleep.c | 5 | ||||
-rw-r--r-- | drivers/acpi/video_detect.c | 5 | ||||
-rw-r--r-- | drivers/acpi/wakeup.c | 6 |
13 files changed, 263 insertions, 65 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 2aa042a..3a17ca5 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -7,7 +7,6 @@ menuconfig ACPI depends on !IA64_HP_SIM depends on IA64 || X86 depends on PCI - depends on PM select PNP default y help diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 54784bb..edc2586 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -416,10 +416,15 @@ struct acpi_gpe_handler_info { u8 originally_enabled; /* True if GPE was originally enabled */ }; +struct acpi_gpe_notify_object { + struct acpi_namespace_node *node; + struct acpi_gpe_notify_object *next; +}; + union acpi_gpe_dispatch_info { struct acpi_namespace_node *method_node; /* Method node for this GPE level */ struct acpi_gpe_handler_info *handler; /* Installed GPE handler */ - struct acpi_namespace_node *device_node; /* Parent _PRW device for implicit notify */ + struct acpi_gpe_notify_object device; /* List of _PRW devices for implicit notify */ }; /* diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index 14988a8..f472521 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -457,6 +457,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) acpi_status status; struct acpi_gpe_event_info *local_gpe_event_info; struct acpi_evaluate_info *info; + struct acpi_gpe_notify_object *notify_object; ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method); @@ -508,10 +509,18 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) * from this thread -- because handlers may in turn run other * control methods. */ - status = - acpi_ev_queue_notify_request(local_gpe_event_info->dispatch. - device_node, - ACPI_NOTIFY_DEVICE_WAKE); + status = acpi_ev_queue_notify_request( + local_gpe_event_info->dispatch.device.node, + ACPI_NOTIFY_DEVICE_WAKE); + + notify_object = local_gpe_event_info->dispatch.device.next; + while (ACPI_SUCCESS(status) && notify_object) { + status = acpi_ev_queue_notify_request( + notify_object->node, + ACPI_NOTIFY_DEVICE_WAKE); + notify_object = notify_object->next; + } + break; case ACPI_GPE_DISPATCH_METHOD: diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index e9562a7..52aaff3 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -198,7 +198,9 @@ acpi_setup_gpe_for_wake(acpi_handle wake_device, acpi_status status = AE_BAD_PARAMETER; struct acpi_gpe_event_info *gpe_event_info; struct acpi_namespace_node *device_node; + struct acpi_gpe_notify_object *notify_object; acpi_cpu_flags flags; + u8 gpe_dispatch_mask; ACPI_FUNCTION_TRACE(acpi_setup_gpe_for_wake); @@ -212,37 +214,62 @@ acpi_setup_gpe_for_wake(acpi_handle wake_device, return_ACPI_STATUS(AE_BAD_PARAMETER); } + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Ensure that we have a valid GPE number */ + + gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); + if (!gpe_event_info) { + goto unlock_and_exit; + } + + if (wake_device == ACPI_ROOT_OBJECT) { + goto out; + } + + /* + * If there is no method or handler for this GPE, then the + * wake_device will be notified whenever this GPE fires (aka + * "implicit notify") Note: The GPE is assumed to be + * level-triggered (for windows compatibility). + */ + gpe_dispatch_mask = gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK; + if (gpe_dispatch_mask != ACPI_GPE_DISPATCH_NONE + && gpe_dispatch_mask != ACPI_GPE_DISPATCH_NOTIFY) { + goto out; + } + /* Validate wake_device is of type Device */ device_node = ACPI_CAST_PTR(struct acpi_namespace_node, wake_device); if (device_node->type != ACPI_TYPE_DEVICE) { - return_ACPI_STATUS(AE_BAD_PARAMETER); + goto unlock_and_exit; } - flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + if (gpe_dispatch_mask == ACPI_GPE_DISPATCH_NONE) { + gpe_event_info->flags = (ACPI_GPE_DISPATCH_NOTIFY | + ACPI_GPE_LEVEL_TRIGGERED); + gpe_event_info->dispatch.device.node = device_node; + gpe_event_info->dispatch.device.next = NULL; + } else { + /* There are multiple devices to notify implicitly. */ - /* Ensure that we have a valid GPE number */ - - gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); - if (gpe_event_info) { - /* - * If there is no method or handler for this GPE, then the - * wake_device will be notified whenever this GPE fires (aka - * "implicit notify") Note: The GPE is assumed to be - * level-triggered (for windows compatibility). - */ - if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == - ACPI_GPE_DISPATCH_NONE) { - gpe_event_info->flags = - (ACPI_GPE_DISPATCH_NOTIFY | - ACPI_GPE_LEVEL_TRIGGERED); - gpe_event_info->dispatch.device_node = device_node; + notify_object = ACPI_ALLOCATE_ZEROED(sizeof(*notify_object)); + if (!notify_object) { + status = AE_NO_MEMORY; + goto unlock_and_exit; } - gpe_event_info->flags |= ACPI_GPE_CAN_WAKE; - status = AE_OK; + notify_object->node = device_node; + notify_object->next = gpe_event_info->dispatch.device.next; + gpe_event_info->dispatch.device.next = notify_object; } + out: + gpe_event_info->flags |= ACPI_GPE_CAN_WAKE; + status = AE_OK; + + unlock_and_exit: acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig index fca34cc..e91680c 100644 --- a/drivers/acpi/apei/Kconfig +++ b/drivers/acpi/apei/Kconfig @@ -1,5 +1,6 @@ config ACPI_APEI bool "ACPI Platform Error Interface (APEI)" + select PSTORE depends on X86 help APEI allows to report errors (for example from the chipset) diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index cf6db6b7..c02005a 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -34,6 +34,7 @@ #include <linux/cper.h> #include <linux/nmi.h> #include <linux/hardirq.h> +#include <linux/pstore.h> #include <acpi/apei.h> #include "apei-internal.h" @@ -781,6 +782,128 @@ static int erst_check_table(struct acpi_table_erst *erst_tab) return 0; } +static size_t erst_reader(u64 *id, enum pstore_type_id *type, + struct timespec *time); +static u64 erst_writer(enum pstore_type_id type, size_t size); + +static struct pstore_info erst_info = { + .owner = THIS_MODULE, + .name = "erst", + .read = erst_reader, + .write = erst_writer, + .erase = erst_clear +}; + +#define CPER_CREATOR_PSTORE \ + UUID_LE(0x75a574e3, 0x5052, 0x4b29, 0x8a, 0x8e, 0xbe, 0x2c, \ + 0x64, 0x90, 0xb8, 0x9d) +#define CPER_SECTION_TYPE_DMESG \ + UUID_LE(0xc197e04e, 0xd545, 0x4a70, 0x9c, 0x17, 0xa5, 0x54, \ + 0x94, 0x19, 0xeb, 0x12) +#define CPER_SECTION_TYPE_MCE \ + UUID_LE(0xfe08ffbe, 0x95e4, 0x4be7, 0xbc, 0x73, 0x40, 0x96, \ + 0x04, 0x4a, 0x38, 0xfc) + +struct cper_pstore_record { + struct cper_record_header hdr; + struct cper_section_descriptor sec_hdr; + char data[]; +} __packed; + +static size_t erst_reader(u64 *id, enum pstore_type_id *type, + struct timespec *time) +{ + int rc; + ssize_t len; + unsigned long flags; + u64 record_id; + struct cper_pstore_record *rcd = (struct cper_pstore_record *) + (erst_info.buf - sizeof(*rcd)); + + if (erst_disable) + return -ENODEV; + + raw_spin_lock_irqsave(&erst_lock, flags); +skip: + rc = __erst_get_next_record_id(&record_id); + if (rc) { + raw_spin_unlock_irqrestore(&erst_lock, flags); + return rc; + } + /* no more record */ + if (record_id == APEI_ERST_INVALID_RECORD_ID) { + raw_spin_unlock_irqrestore(&erst_lock, flags); + return 0; + } + + len = __erst_read(record_id, &rcd->hdr, sizeof(*rcd) + + erst_erange.size); + if (uuid_le_cmp(rcd->hdr.creator_id, CPER_CREATOR_PSTORE) != 0) + goto skip; + raw_spin_unlock_irqrestore(&erst_lock, flags); + + *id = record_id; + if (uuid_le_cmp(rcd->sec_hdr.section_type, + CPER_SECTION_TYPE_DMESG) == 0) + *type = PSTORE_TYPE_DMESG; + else if (uuid_le_cmp(rcd->sec_hdr.section_type, + CPER_SECTION_TYPE_MCE) == 0) + *type = PSTORE_TYPE_MCE; + else + *type = PSTORE_TYPE_UNKNOWN; + + if (rcd->hdr.validation_bits & CPER_VALID_TIMESTAMP) + time->tv_sec = rcd->hdr.timestamp; + else + time->tv_sec = 0; + time->tv_nsec = 0; + + return len - sizeof(*rcd); +} + +static u64 erst_writer(enum pstore_type_id type, size_t size) +{ + struct cper_pstore_record *rcd = (struct cper_pstore_record *) + (erst_info.buf - sizeof(*rcd)); + + memset(rcd, 0, sizeof(*rcd)); + memcpy(rcd->hdr.signature, CPER_SIG_RECORD, CPER_SIG_SIZE); + rcd->hdr.revision = CPER_RECORD_REV; + rcd->hdr.signature_end = CPER_SIG_END; + rcd->hdr.section_count = 1; + rcd->hdr.error_severity = CPER_SEV_FATAL; + /* timestamp valid. platform_id, partition_id are invalid */ + rcd->hdr.validation_bits = CPER_VALID_TIMESTAMP; + rcd->hdr.timestamp = get_seconds(); + rcd->hdr.record_length = sizeof(*rcd) + size; + rcd->hdr.creator_id = CPER_CREATOR_PSTORE; + rcd->hdr.notification_type = CPER_NOTIFY_MCE; + rcd->hdr.record_id = cper_next_record_id(); + rcd->hdr.flags = CPER_HW_ERROR_FLAGS_PREVERR; + + rcd->sec_hdr.section_offset = sizeof(*rcd); + rcd->sec_hdr.section_length = size; + rcd->sec_hdr.revision = CPER_SEC_REV; + /* fru_id and fru_text is invalid */ + rcd->sec_hdr.validation_bits = 0; + rcd->sec_hdr.flags = CPER_SEC_PRIMARY; + switch (type) { + case PSTORE_TYPE_DMESG: + rcd->sec_hdr.section_type = CPER_SECTION_TYPE_DMESG; + break; + case PSTORE_TYPE_MCE: + rcd->sec_hdr.section_type = CPER_SECTION_TYPE_MCE; + break; + default: + return -EINVAL; + } + rcd->sec_hdr.section_severity = CPER_SEV_FATAL; + + erst_write(&rcd->hdr); + + return rcd->hdr.record_id; +} + static int __init erst_init(void) { int rc = 0; @@ -788,6 +911,7 @@ static int __init erst_init(void) struct apei_exec_context ctx; struct apei_resources erst_resources; struct resource *r; + char *buf; if (acpi_disabled) goto err; @@ -854,6 +978,18 @@ static int __init erst_init(void) if (!erst_erange.vaddr) goto err_release_erange; + buf = kmalloc(erst_erange.size, GFP_KERNEL); + mutex_init(&erst_info.buf_mutex); + if (buf) { + erst_info.buf = buf + sizeof(struct cper_pstore_record); + erst_info.bufsize = erst_erange.size - + sizeof(struct cper_pstore_record); + if (pstore_register(&erst_info)) { + pr_info(ERST_PFX "Could not register with persistent store\n"); + kfree(buf); + } + } + pr_info(ERST_PFX "Error Record Serialization Table (ERST) support is initialized.\n"); diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 7ced61f..9749980 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -40,6 +40,7 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> #include <linux/dmi.h> +#include <linux/suspend.h> #include "internal.h" @@ -1006,8 +1007,7 @@ struct kobject *acpi_kobj; static int __init acpi_init(void) { - int result = 0; - + int result; if (acpi_disabled) { printk(KERN_INFO PREFIX "Interpreter disabled.\n"); @@ -1022,29 +1022,18 @@ static int __init acpi_init(void) init_acpi_device_notify(); result = acpi_bus_init(); - - if (!result) { - pci_mmcfg_late_init(); - if (!(pm_flags & PM_APM)) - pm_flags |= PM_ACPI; - else { - printk(KERN_INFO PREFIX - "APM is already active, exiting\n"); - disable_acpi(); - result = -ENODEV; - } - } else + if (result) { disable_acpi(); - - if (acpi_disabled) return result; + } + pci_mmcfg_late_init(); acpi_scan_init(); acpi_ec_init(); acpi_debugfs_init(); acpi_sleep_proc_init(); acpi_wakeup_device_init(); - return result; + return 0; } subsys_initcall(acpi_init); diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c index 5df67f1..384f7ab 100644 --- a/drivers/acpi/debugfs.c +++ b/drivers/acpi/debugfs.c @@ -26,7 +26,9 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf, size_t count, loff_t *ppos) { static char *buf; - static int uncopied_bytes; + static u32 max_size; + static u32 uncopied_bytes; + struct acpi_table_header table; acpi_status status; @@ -37,19 +39,24 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf, if (copy_from_user(&table, user_buf, sizeof(struct acpi_table_header))) return -EFAULT; - uncopied_bytes = table.length; - buf = kzalloc(uncopied_bytes, GFP_KERNEL); + uncopied_bytes = max_size = table.length; + buf = kzalloc(max_size, GFP_KERNEL); if (!buf) return -ENOMEM; } - if (uncopied_bytes < count) { - kfree(buf); + if (buf == NULL) + return -EINVAL; + + if ((*ppos > max_size) || + (*ppos + count > max_size) || + (*ppos + count < count) || + (count > uncopied_bytes)) return -EINVAL; - } if (copy_from_user(buf + (*ppos), user_buf, count)) { kfree(buf); + buf = NULL; return -EFAULT; } @@ -59,6 +66,7 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf, if (!uncopied_bytes) { status = acpi_install_method(buf); kfree(buf); + buf = NULL; if (ACPI_FAILURE(status)) return -EINVAL; add_taint(TAINT_OVERRIDDEN_ACPI_TABLE); diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 5eb25eb..3b5c318 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -274,7 +274,7 @@ acpi_table_parse_srat(enum acpi_srat_type id, int __init acpi_numa_init(void) { - int ret = 0; + int cnt = 0; /* * Should not limit number with cpu num that is from NR_CPUS or nr_cpus= @@ -288,7 +288,7 @@ int __init acpi_numa_init(void) acpi_parse_x2apic_affinity, 0); acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY, acpi_parse_processor_affinity, 0); - ret = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY, + cnt = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY, acpi_parse_memory_affinity, NR_NODE_MEMBLKS); } @@ -297,7 +297,10 @@ int __init acpi_numa_init(void) acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit); acpi_numa_arch_fixup(); - return ret; + + if (cnt <= 0) + return cnt ?: -ENOENT; + return 0; } int acpi_get_pxm(acpi_handle h) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index b093181..4a67530 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -636,17 +636,21 @@ EXPORT_SYMBOL(acpi_os_write_port); acpi_status acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) { - u32 dummy; void __iomem *virt_addr; - int size = width / 8, unmap = 0; + unsigned int size = width / 8; + bool unmap = false; + u32 dummy; rcu_read_lock(); virt_addr = acpi_map_vaddr_lookup(phys_addr, size); - rcu_read_unlock(); if (!virt_addr) { + rcu_read_unlock(); virt_addr = acpi_os_ioremap(phys_addr, size); - unmap = 1; + if (!virt_addr) + return AE_BAD_ADDRESS; + unmap = true; } + if (!value) value = &dummy; @@ -666,6 +670,8 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width) if (unmap) iounmap(virt_addr); + else + rcu_read_unlock(); return AE_OK; } @@ -674,14 +680,17 @@ acpi_status acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) { void __iomem *virt_addr; - int size = width / 8, unmap = 0; + unsigned int size = width / 8; + bool unmap = false; rcu_read_lock(); virt_addr = acpi_map_vaddr_lookup(phys_addr, size); - rcu_read_unlock(); if (!virt_addr) { + rcu_read_unlock(); virt_addr = acpi_os_ioremap(phys_addr, size); - unmap = 1; + if (!virt_addr) + return AE_BAD_ADDRESS; + unmap = true; } switch (width) { @@ -700,6 +709,8 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width) if (unmap) iounmap(virt_addr); + else + rcu_read_unlock(); return AE_OK; } @@ -1578,9 +1589,9 @@ acpi_status __init acpi_os_initialize(void) acpi_status __init acpi_os_initialize1(void) { - kacpid_wq = create_workqueue("kacpid"); - kacpi_notify_wq = create_workqueue("kacpi_notify"); - kacpi_hotplug_wq = create_workqueue("kacpi_hotplug"); + kacpid_wq = alloc_workqueue("kacpid", 0, 1); + kacpi_notify_wq = alloc_workqueue("kacpi_notify", 0, 1); + kacpi_hotplug_wq = alloc_workqueue("kacpi_hotplug", 0, 1); BUG_ON(!kacpid_wq); BUG_ON(!kacpi_notify_wq); BUG_ON(!kacpi_hotplug_wq); diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index d6a8cd1..1850dac 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -16,6 +16,7 @@ #include <linux/device.h> #include <linux/suspend.h> #include <linux/reboot.h> +#include <linux/acpi.h> #include <asm/io.h> @@ -585,7 +586,7 @@ int acpi_suspend(u32 acpi_state) return -EINVAL; } -#ifdef CONFIG_PM_OPS +#ifdef CONFIG_PM /** * acpi_pm_device_sleep_state - return preferred power state of ACPI device * in the system sleep state given by %acpi_target_sleep_state @@ -671,7 +672,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) *d_min_p = d_min; return d_max; } -#endif /* CONFIG_PM_OPS */ +#endif /* CONFIG_PM */ #ifdef CONFIG_PM_SLEEP /** diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 42d3d72..5af3479 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -82,6 +82,11 @@ long acpi_is_video_device(struct acpi_device *device) if (!device) return 0; + /* Is this device able to support video switching ? */ + if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) || + ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy))) + video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING; + /* Is this device able to retrieve a video ROM ? */ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy))) video_caps |= ACPI_VIDEO_ROM_AVAILABLE; diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c index ed65014..7bfbe40 100644 --- a/drivers/acpi/wakeup.c +++ b/drivers/acpi/wakeup.c @@ -86,8 +86,12 @@ int __init acpi_wakeup_device_init(void) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - if (device_can_wakeup(&dev->dev)) + if (device_can_wakeup(&dev->dev)) { + /* Button GPEs are supposed to be always enabled. */ + acpi_enable_gpe(dev->wakeup.gpe_device, + dev->wakeup.gpe_number); device_set_wakeup_enable(&dev->dev, true); + } } mutex_unlock(&acpi_device_lock); return 0; |