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-rw-r--r--drivers/acpi/Kconfig1
-rw-r--r--drivers/acpi/acpica/aclocal.h7
-rw-r--r--drivers/acpi/acpica/evgpe.c17
-rw-r--r--drivers/acpi/acpica/evxfgpe.c67
-rw-r--r--drivers/acpi/bus.c23
-rw-r--r--drivers/acpi/debugfs.c20
-rw-r--r--drivers/acpi/numa.c9
-rw-r--r--drivers/acpi/osl.c31
-rw-r--r--drivers/acpi/sleep.c5
-rw-r--r--drivers/acpi/video_detect.c5
-rw-r--r--drivers/acpi/wakeup.c6
11 files changed, 126 insertions, 65 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 2aa042a5da6..3a17ca5fff6 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 54784bb42ce..edc25867ad9 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 14988a86066..f4725212eb4 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 e9562a7cb2f..52aaff3df56 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/bus.c b/drivers/acpi/bus.c
index 7ced61f3949..9749980ca6c 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 5df67f1d6c6..384f7abcff7 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 5eb25eb3ea4..3b5c3189fd9 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 b0931818cf9..4a6753009d7 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 d6a8cd14de2..1850dac8f45 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 42d3d72dae8..5af3479714f 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 ed650145250..7bfbe40bc43 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;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-02-07 21:15:03 +0000