summaryrefslogtreecommitdiffstats
path: root/drivers/acpi
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/Kconfig2
-rw-r--r--drivers/acpi/battery.c10
-rw-r--r--drivers/acpi/bgrt.c1
-rw-r--r--drivers/acpi/glue.c2
-rw-r--r--drivers/acpi/pci_link.c12
-rw-r--r--drivers/acpi/processor_perflib.c30
-rw-r--r--drivers/acpi/sleep.c14
-rw-r--r--drivers/acpi/utils.c30
-rw-r--r--drivers/acpi/video.c33
9 files changed, 102 insertions, 32 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 47768ff87343..80998958cf45 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -208,7 +208,7 @@ config ACPI_IPMI
config ACPI_HOTPLUG_CPU
bool
- depends on ACPI_PROCESSOR && HOTPLUG_CPU
+ depends on EXPERIMENTAL && ACPI_PROCESSOR && HOTPLUG_CPU
select ACPI_CONTAINER
default y
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 86933ca8b472..7dd3f9fb9f3f 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -643,11 +643,19 @@ static int acpi_battery_update(struct acpi_battery *battery)
static void acpi_battery_refresh(struct acpi_battery *battery)
{
+ int power_unit;
+
if (!battery->bat.dev)
return;
+ power_unit = battery->power_unit;
+
acpi_battery_get_info(battery);
- /* The battery may have changed its reporting units. */
+
+ if (power_unit == battery->power_unit)
+ return;
+
+ /* The battery has changed its reporting units. */
sysfs_remove_battery(battery);
sysfs_add_battery(battery);
}
diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
index 8cf6c46e99fb..6680df36b963 100644
--- a/drivers/acpi/bgrt.c
+++ b/drivers/acpi/bgrt.c
@@ -11,6 +11,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/sysfs.h>
+#include <linux/io.h>
#include <acpi/acpi.h>
#include <acpi/acpi_bus.h>
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 29a4a5c8ee00..1564e0927c21 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -69,6 +69,7 @@ static struct acpi_bus_type *acpi_get_bus_type(struct bus_type *type)
up_read(&bus_type_sem);
return ret;
}
+EXPORT_SYMBOL_GPL(register_acpi_bus_type);
static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle)
{
@@ -85,6 +86,7 @@ static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle)
up_read(&bus_type_sem);
return ret;
}
+EXPORT_SYMBOL_GPL(unregister_acpi_bus_type);
/* Get device's handler per its address under its parent */
struct acpi_find_child {
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 4a29763b8eb4..a12808259dfb 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -720,21 +720,21 @@ static int acpi_pci_link_add(struct acpi_device *device)
acpi_device_bid(device));
for (i = 0; i < link->irq.possible_count; i++) {
if (link->irq.active == link->irq.possible[i]) {
- printk(" *%d", link->irq.possible[i]);
+ printk(KERN_CONT " *%d", link->irq.possible[i]);
found = 1;
} else
- printk(" %d", link->irq.possible[i]);
+ printk(KERN_CONT " %d", link->irq.possible[i]);
}
- printk(")");
+ printk(KERN_CONT ")");
if (!found)
- printk(" *%d", link->irq.active);
+ printk(KERN_CONT " *%d", link->irq.active);
if (!link->device->status.enabled)
- printk(", disabled.");
+ printk(KERN_CONT ", disabled.");
- printk("\n");
+ printk(KERN_CONT "\n");
list_add_tail(&link->list, &acpi_link_list);
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 0af48a8554cd..a093dc163a42 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -333,6 +333,7 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr)
struct acpi_buffer state = { 0, NULL };
union acpi_object *pss = NULL;
int i;
+ int last_invalid = -1;
status = acpi_evaluate_object(pr->handle, "_PSS", NULL, &buffer);
@@ -394,14 +395,33 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr)
((u32)(px->core_frequency * 1000) !=
(px->core_frequency * 1000))) {
printk(KERN_ERR FW_BUG PREFIX
- "Invalid BIOS _PSS frequency: 0x%llx MHz\n",
- px->core_frequency);
- result = -EFAULT;
- kfree(pr->performance->states);
- goto end;
+ "Invalid BIOS _PSS frequency found for processor %d: 0x%llx MHz\n",
+ pr->id, px->core_frequency);
+ if (last_invalid == -1)
+ last_invalid = i;
+ } else {
+ if (last_invalid != -1) {
+ /*
+ * Copy this valid entry over last_invalid entry
+ */
+ memcpy(&(pr->performance->states[last_invalid]),
+ px, sizeof(struct acpi_processor_px));
+ ++last_invalid;
+ }
}
}
+ if (last_invalid == 0) {
+ printk(KERN_ERR FW_BUG PREFIX
+ "No valid BIOS _PSS frequency found for processor %d\n", pr->id);
+ result = -EFAULT;
+ kfree(pr->performance->states);
+ pr->performance->states = NULL;
+ }
+
+ if (last_invalid > 0)
+ pr->performance->state_count = last_invalid;
+
end:
kfree(buffer.pointer);
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index d8b381e94ee2..88561029cca8 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -94,11 +94,9 @@ static int acpi_sleep_prepare(u32 acpi_state)
#ifdef CONFIG_ACPI_SLEEP
/* do we have a wakeup address for S2 and S3? */
if (acpi_state == ACPI_STATE_S3) {
- if (!acpi_wakeup_address) {
+ if (!acpi_wakeup_address)
return -EFAULT;
- }
- acpi_set_firmware_waking_vector(
- (acpi_physical_address)acpi_wakeup_address);
+ acpi_set_firmware_waking_vector(acpi_wakeup_address);
}
ACPI_FLUSH_CPU_CACHE();
@@ -928,7 +926,7 @@ int __init acpi_sleep_init(void)
status = acpi_get_sleep_type_data(i, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
sleep_states[i] = 1;
- printk(" S%d", i);
+ printk(KERN_CONT " S%d", i);
}
}
@@ -942,7 +940,7 @@ int __init acpi_sleep_init(void)
hibernation_set_ops(old_suspend_ordering ?
&acpi_hibernation_ops_old : &acpi_hibernation_ops);
sleep_states[ACPI_STATE_S4] = 1;
- printk(" S4");
+ printk(KERN_CONT " S4");
if (!nosigcheck) {
acpi_get_table(ACPI_SIG_FACS, 1,
(struct acpi_table_header **)&facs);
@@ -955,11 +953,11 @@ int __init acpi_sleep_init(void)
status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
sleep_states[ACPI_STATE_S5] = 1;
- printk(" S5");
+ printk(KERN_CONT " S5");
pm_power_off_prepare = acpi_power_off_prepare;
pm_power_off = acpi_power_off;
}
- printk(")\n");
+ printk(KERN_CONT ")\n");
/*
* Register the tts_notifier to reboot notifier list so that the _TTS
* object can also be evaluated when the system enters S5.
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index b002a471c5d4..adbbc1c80a26 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -382,3 +382,33 @@ acpi_evaluate_reference(acpi_handle handle,
}
EXPORT_SYMBOL(acpi_evaluate_reference);
+
+acpi_status
+acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld)
+{
+ acpi_status status;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *output;
+
+ status = acpi_evaluate_object(handle, "_PLD", NULL, &buffer);
+
+ if (ACPI_FAILURE(status))
+ return status;
+
+ output = buffer.pointer;
+
+ if (!output || output->type != ACPI_TYPE_PACKAGE
+ || !output->package.count
+ || output->package.elements[0].type != ACPI_TYPE_BUFFER
+ || output->package.elements[0].buffer.length > sizeof(*pld)) {
+ status = AE_TYPE;
+ goto out;
+ }
+
+ memcpy(pld, output->package.elements[0].buffer.pointer,
+ output->package.elements[0].buffer.length);
+out:
+ kfree(buffer.pointer);
+ return status;
+}
+EXPORT_SYMBOL(acpi_get_physical_device_location);
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 9577b6fa2650..a576575617d7 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1687,10 +1687,6 @@ static int acpi_video_bus_add(struct acpi_device *device)
set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
set_bit(KEY_DISPLAY_OFF, input->keybit);
- error = input_register_device(input);
- if (error)
- goto err_stop_video;
-
printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n",
ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
video->flags.multihead ? "yes" : "no",
@@ -1701,12 +1697,16 @@ static int acpi_video_bus_add(struct acpi_device *device)
video->pm_nb.priority = 0;
error = register_pm_notifier(&video->pm_nb);
if (error)
- goto err_unregister_input_dev;
+ goto err_stop_video;
+
+ error = input_register_device(input);
+ if (error)
+ goto err_unregister_pm_notifier;
return 0;
- err_unregister_input_dev:
- input_unregister_device(input);
+ err_unregister_pm_notifier:
+ unregister_pm_notifier(&video->pm_nb);
err_stop_video:
acpi_video_bus_stop_devices(video);
err_free_input_dev:
@@ -1743,9 +1743,18 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type)
return 0;
}
+static int __init is_i740(struct pci_dev *dev)
+{
+ if (dev->device == 0x00D1)
+ return 1;
+ if (dev->device == 0x7000)
+ return 1;
+ return 0;
+}
+
static int __init intel_opregion_present(void)
{
-#if defined(CONFIG_DRM_I915) || defined(CONFIG_DRM_I915_MODULE)
+ int opregion = 0;
struct pci_dev *dev = NULL;
u32 address;
@@ -1754,13 +1763,15 @@ static int __init intel_opregion_present(void)
continue;
if (dev->vendor != PCI_VENDOR_ID_INTEL)
continue;
+ /* We don't want to poke around undefined i740 registers */
+ if (is_i740(dev))
+ continue;
pci_read_config_dword(dev, 0xfc, &address);
if (!address)
continue;
- return 1;
+ opregion = 1;
}
-#endif
- return 0;
+ return opregion;
}
int acpi_video_register(void)
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-23 16:38:46 +0200