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-rw-r--r--drivers/acpi/Kconfig1
-rw-r--r--drivers/acpi/apei/Kconfig1
-rw-r--r--drivers/acpi/apei/erst.c136
-rw-r--r--drivers/acpi/bus.c23
-rw-r--r--drivers/acpi/numa.c9
-rw-r--r--drivers/acpi/osl.c6
-rw-r--r--drivers/acpi/sleep.c5
-rw-r--r--drivers/acpi/video.c16
8 files changed, 170 insertions, 27 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 2aa042a5da6d..3a17ca5fff6f 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/apei/Kconfig b/drivers/acpi/apei/Kconfig
index 9ecf6feae830..66a03caa2ad9 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 8ff8c32fef58..d6cb0ff6988e 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"
@@ -928,6 +929,128 @@ 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;
@@ -935,6 +1058,7 @@ 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;
@@ -1001,6 +1125,18 @@ 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 7ced61f39492..9749980ca6ca 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/numa.c b/drivers/acpi/numa.c
index 5eb25eb3ea48..3b5c3189fd99 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 45c6ac8790d7..45ad4ffef533 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1608,9 +1608,9 @@ 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 84f57143ad7c..6c949602cbd1 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>
@@ -567,7 +568,7 @@ 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
@@ -653,7 +654,7 @@ 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.c b/drivers/acpi/video.c
index 90f8f7676d1f..a18e497f1c3c 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -782,6 +782,9 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
if (acpi_video_backlight_support()) {
struct backlight_properties props;
+ struct pci_dev *pdev;
+ acpi_handle acpi_parent;
+ struct device *parent = NULL;
int result;
static int count = 0;
char *name;
@@ -794,9 +797,20 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
return;
count++;
+ acpi_get_parent(device->dev->handle, &acpi_parent);
+
+ pdev = acpi_get_pci_dev(acpi_parent);
+ if (pdev) {
+ parent = &pdev->dev;
+ pci_dev_put(pdev);
+ }
+
memset(&props, 0, sizeof(struct backlight_properties));
+ props.type = BACKLIGHT_FIRMWARE;
props.max_brightness = device->brightness->count - 3;
- device->backlight = backlight_device_register(name, NULL, device,
+ device->backlight = backlight_device_register(name,
+ parent,
+ device,
&acpi_backlight_ops,
&props);
kfree(name);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-15 23:47:25 +0300