mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-17 09:43:59 +08:00
ACPI and power management fixes for 3.15-rc6
- ACPICA fix for a stale pointer access introduced by a recent
commit in the XSDT validation code from Lv Zheng.
- ACPICA fix for the default value of the command line switch
to favor 32-bit FADT addresses (in case there's a conflict
between a 64-bit and a 32-bit address). The previous default
was that the 32-bit version would take precedence and we tried
to change it to the other way around and it didn't work.
From Lv Zheng.
- A TPM commit related to ACPI _DSM in 3.14 caused the driver to
refuse to load if a specific _DSM was missing and that broke
resume from system suspend on Chromebooks that require the TPM
hardware to be restored to a working state during resume by the
OS. Restore the old behavior to load the driver if the _DSM
in question is not present, but prevent it from using the
feature the _DSM is for.
- ACPI AC driver conversion in 3.13 broke thermal management on
at least one machine and has to be reverted. From Guenter Roeck.
- Two reverts of 3.13 commits that attempted to remove the old ACPI
battery interface in /proc, but turned out to break some utilities
still using that interface. From Lan Tianyu.
- ACPI processor driver fix to prevent acpi_processor_add() from
modifying the CPU device's .offline field which leads to breakage
if the initial online of the CPU fails. From Igor Mammedov.
- Two intel_pstate fixes, one to take a BayTrail documentation update
into account and one to avoid forcing the maximum P-state on init
which causes CPU PM trouble on systems with P-states coordination
when one of the CPU cores is initialized after an offline/online
cycle triggered by user space. Both stable candidates, from
Dirk Brandewie.
- Fix for the ACPI video DMI blacklist entry for Dell Inspiron 7520
from Aaron Lu.
- Two new ACPI video blacklist entries for machines shipping with
Win8 that need to use native backlight so that it can be controlled
in a usual way (which doesn't work otherwise due bugs in the ACPI
tables) from Hans de Goede.
- Two ACPI _OSI quirks for systems that need them to work correctly
with Linux from Edward Lin and Hans de Goede.
/
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Merge tag 'pm+acpi-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"Still fixing regressions (partly by reverting commits that broke
things for people), fixing other stable-candidate bugs and adding some
blacklist entries for ACPI video and _OSI.
Two ACPICA regression fixes (one recent and one for a 3.14 commit), a
fix for an ACPI-related regression in TPM (introduced in 3.14), a
revert of the ACPI AC driver conversion in 3.13 that went wrong for an
unknown reason, two reverts of commits that attempted to remove an old
user space interface in /proc and broke some utilities, in 3.13 too, a
fix for a CPU hotplug bug in the ACPI processor driver (stable
material), two (stable candidate) fixes for intel_pstate and a few new
blacklist entries, mostly for systems that shipped with Windows 8.
Specifics:
- ACPICA fix for a stale pointer access introduced by a recent commit
in the XSDT validation code from Lv Zheng.
- ACPICA fix for the default value of the command line switch to
favor 32-bit FADT addresses (in case there's a conflict between a
64-bit and a 32-bit address). The previous default was that the
32-bit version would take precedence and we tried to change it to
the other way around and it didn't work. From Lv Zheng.
- A TPM commit related to ACPI _DSM in 3.14 caused the driver to
refuse to load if a specific _DSM was missing and that broke resume
from system suspend on Chromebooks that require the TPM hardware to
be restored to a working state during resume by the OS. Restore
the old behavior to load the driver if the _DSM in question is not
present, but prevent it from using the feature the _DSM is for.
- ACPI AC driver conversion in 3.13 broke thermal management on at
least one machine and has to be reverted. From Guenter Roeck.
- Two reverts of 3.13 commits that attempted to remove the old ACPI
battery interface in /proc, but turned out to break some utilities
still using that interface. From Lan Tianyu.
- ACPI processor driver fix to prevent acpi_processor_add() from
modifying the CPU device's .offline field which leads to breakage
if the initial online of the CPU fails. From Igor Mammedov.
- Two intel_pstate fixes, one to take a BayTrail documentation update
into account and one to avoid forcing the maximum P-state on init
which causes CPU PM trouble on systems with P-states coordination
when one of the CPU cores is initialized after an offline/online
cycle triggered by user space. Both stable candidates, from Dirk
Brandewie.
- Fix for the ACPI video DMI blacklist entry for Dell Inspiron 7520
from Aaron Lu.
- Two new ACPI video blacklist entries for machines shipping with
Win8 that need to use native backlight so that it can be controlled
in a usual way (which doesn't work otherwise due bugs in the ACPI
tables) from Hans de Goede.
- Two ACPI _OSI quirks for systems that need them to work correctly
with Linux from Edward Lin and Hans de Goede"
* tag 'pm+acpi-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / video: Revert native brightness quirk for ThinkPad T530
intel_pstate: remove setting P state to MAX on init
ACPICA: Tables: Restore old behavor to favor 32-bit FADT addresses.
ACPI / video: correct DMI tag for Dell Inspiron 7520
intel_pstate: Set turbo VID for BayTrail
ACPI / TPM: Fix resume regression on Chromebooks
ACPI / proc: Do not say when /proc interfaces will be deleted in Kconfig
ACPI / processor: do not mark present at boot but not onlined CPU as onlined
ACPI: Revert "ACPI / AC: convert ACPI ac driver to platform bus"
ACPI / blacklist: Add dmi_enable_osi_linux quirk for Asus EEE PC 1015PX
ACPI: blacklist win8 OSI for Dell Inspiron 7737
ACPI / video: Add use_native_backlight quirks for more systems
ACPI: Revert "ACPI / Battery: Remove battery's proc directory"
ACPI: Revert "ACPI: Remove CONFIG_ACPI_PROCFS_POWER and cm_sbsc.c"
ACPICA: Tables: Fix invalid pointer accesses in acpi_tb_parse_root_table().
This commit is contained in:
Linus Torvalds
commit
478c7cf7a8
@ -47,6 +47,23 @@ config ACPI_SLEEP
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depends on SUSPEND || HIBERNATION
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default y
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config ACPI_PROCFS_POWER
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bool "Deprecated power /proc/acpi directories"
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depends on PROC_FS
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help
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For backwards compatibility, this option allows
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deprecated power /proc/acpi/ directories to exist, even when
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they have been replaced by functions in /sys.
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The deprecated directories (and their replacements) include:
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/proc/acpi/battery/* (/sys/class/power_supply/*)
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/proc/acpi/ac_adapter/* (sys/class/power_supply/*)
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This option has no effect on /proc/acpi/ directories
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and functions, which do not yet exist in /sys
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This option, together with the proc directories, will be
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deleted in the future.
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Say N to delete power /proc/acpi/ directories that have moved to /sys/
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config ACPI_EC_DEBUGFS
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tristate "EC read/write access through /sys/kernel/debug/ec"
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default n
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@ -47,6 +47,7 @@ acpi-y += sysfs.o
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acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
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acpi-$(CONFIG_DEBUG_FS) += debugfs.o
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acpi-$(CONFIG_ACPI_NUMA) += numa.o
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acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
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ifdef CONFIG_ACPI_VIDEO
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acpi-y += video_detect.o
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endif
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@ -52,11 +52,39 @@ MODULE_AUTHOR("Paul Diefenbaugh");
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MODULE_DESCRIPTION("ACPI AC Adapter Driver");
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MODULE_LICENSE("GPL");
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static int acpi_ac_add(struct acpi_device *device);
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static int acpi_ac_remove(struct acpi_device *device);
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static void acpi_ac_notify(struct acpi_device *device, u32 event);
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static const struct acpi_device_id ac_device_ids[] = {
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{"ACPI0003", 0},
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{"", 0},
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};
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MODULE_DEVICE_TABLE(acpi, ac_device_ids);
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#ifdef CONFIG_PM_SLEEP
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static int acpi_ac_resume(struct device *dev);
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#endif
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static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
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static int ac_sleep_before_get_state_ms;
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static struct acpi_driver acpi_ac_driver = {
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.name = "ac",
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.class = ACPI_AC_CLASS,
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.ids = ac_device_ids,
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.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
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.ops = {
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.add = acpi_ac_add,
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.remove = acpi_ac_remove,
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.notify = acpi_ac_notify,
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},
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.drv.pm = &acpi_ac_pm,
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};
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struct acpi_ac {
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struct power_supply charger;
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struct platform_device *pdev;
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struct acpi_device * device;
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unsigned long long state;
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struct notifier_block battery_nb;
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};
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@ -69,10 +97,12 @@ struct acpi_ac {
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static int acpi_ac_get_state(struct acpi_ac *ac)
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{
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acpi_status status;
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acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev);
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acpi_status status = AE_OK;
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status = acpi_evaluate_integer(handle, "_PSR", NULL,
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if (!ac)
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return -EINVAL;
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status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL,
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&ac->state);
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if (ACPI_FAILURE(status)) {
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ACPI_EXCEPTION((AE_INFO, status,
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@ -117,10 +147,9 @@ static enum power_supply_property ac_props[] = {
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Driver Model
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-------------------------------------------------------------------------- */
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static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
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static void acpi_ac_notify(struct acpi_device *device, u32 event)
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{
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struct acpi_ac *ac = data;
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struct acpi_device *adev;
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struct acpi_ac *ac = acpi_driver_data(device);
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if (!ac)
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return;
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@ -143,11 +172,10 @@ static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
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msleep(ac_sleep_before_get_state_ms);
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acpi_ac_get_state(ac);
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adev = ACPI_COMPANION(&ac->pdev->dev);
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acpi_bus_generate_netlink_event(adev->pnp.device_class,
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dev_name(&ac->pdev->dev),
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event, (u32) ac->state);
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acpi_notifier_call_chain(adev, event, (u32) ac->state);
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acpi_bus_generate_netlink_event(device->pnp.device_class,
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dev_name(&device->dev), event,
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(u32) ac->state);
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acpi_notifier_call_chain(device, event, (u32) ac->state);
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kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
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}
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@ -192,49 +220,39 @@ static struct dmi_system_id ac_dmi_table[] = {
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{},
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};
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static int acpi_ac_probe(struct platform_device *pdev)
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static int acpi_ac_add(struct acpi_device *device)
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{
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int result = 0;
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struct acpi_ac *ac = NULL;
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struct acpi_device *adev;
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if (!pdev)
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if (!device)
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return -EINVAL;
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adev = ACPI_COMPANION(&pdev->dev);
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if (!adev)
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return -ENODEV;
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ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL);
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if (!ac)
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return -ENOMEM;
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strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME);
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strcpy(acpi_device_class(adev), ACPI_AC_CLASS);
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ac->pdev = pdev;
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platform_set_drvdata(pdev, ac);
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ac->device = device;
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strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME);
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strcpy(acpi_device_class(device), ACPI_AC_CLASS);
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device->driver_data = ac;
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result = acpi_ac_get_state(ac);
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if (result)
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goto end;
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ac->charger.name = acpi_device_bid(adev);
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ac->charger.name = acpi_device_bid(device);
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ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
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ac->charger.properties = ac_props;
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ac->charger.num_properties = ARRAY_SIZE(ac_props);
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ac->charger.get_property = get_ac_property;
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result = power_supply_register(&pdev->dev, &ac->charger);
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result = power_supply_register(&ac->device->dev, &ac->charger);
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if (result)
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goto end;
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result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev),
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ACPI_ALL_NOTIFY, acpi_ac_notify_handler, ac);
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if (result) {
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power_supply_unregister(&ac->charger);
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goto end;
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}
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printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
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acpi_device_name(adev), acpi_device_bid(adev),
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acpi_device_name(device), acpi_device_bid(device),
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ac->state ? "on-line" : "off-line");
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ac->battery_nb.notifier_call = acpi_ac_battery_notify;
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@ -256,7 +274,7 @@ static int acpi_ac_resume(struct device *dev)
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if (!dev)
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return -EINVAL;
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ac = platform_get_drvdata(to_platform_device(dev));
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ac = acpi_driver_data(to_acpi_device(dev));
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if (!ac)
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return -EINVAL;
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@ -270,19 +288,17 @@ static int acpi_ac_resume(struct device *dev)
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#else
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#define acpi_ac_resume NULL
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#endif
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static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume);
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static int acpi_ac_remove(struct platform_device *pdev)
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static int acpi_ac_remove(struct acpi_device *device)
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{
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struct acpi_ac *ac;
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struct acpi_ac *ac = NULL;
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if (!pdev)
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if (!device || !acpi_driver_data(device))
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return -EINVAL;
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acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev),
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ACPI_ALL_NOTIFY, acpi_ac_notify_handler);
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ac = acpi_driver_data(device);
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ac = platform_get_drvdata(pdev);
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if (ac->charger.dev)
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power_supply_unregister(&ac->charger);
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unregister_acpi_notifier(&ac->battery_nb);
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@ -292,23 +308,6 @@ static int acpi_ac_remove(struct platform_device *pdev)
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return 0;
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}
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static const struct acpi_device_id acpi_ac_match[] = {
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{ "ACPI0003", 0 },
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{ }
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};
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MODULE_DEVICE_TABLE(acpi, acpi_ac_match);
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static struct platform_driver acpi_ac_driver = {
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.probe = acpi_ac_probe,
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.remove = acpi_ac_remove,
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.driver = {
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.name = "acpi-ac",
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.owner = THIS_MODULE,
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.pm = &acpi_ac_pm_ops,
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.acpi_match_table = ACPI_PTR(acpi_ac_match),
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},
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};
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static int __init acpi_ac_init(void)
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{
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int result;
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@ -316,7 +315,7 @@ static int __init acpi_ac_init(void)
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if (acpi_disabled)
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return -ENODEV;
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result = platform_driver_register(&acpi_ac_driver);
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result = acpi_bus_register_driver(&acpi_ac_driver);
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if (result < 0)
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return -ENODEV;
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@ -325,7 +324,7 @@ static int __init acpi_ac_init(void)
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static void __exit acpi_ac_exit(void)
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{
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platform_driver_unregister(&acpi_ac_driver);
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acpi_bus_unregister_driver(&acpi_ac_driver);
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}
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module_init(acpi_ac_init);
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module_exit(acpi_ac_exit);
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@ -29,7 +29,6 @@ ACPI_MODULE_NAME("platform");
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static const struct acpi_device_id acpi_platform_device_ids[] = {
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{ "PNP0D40" },
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{ "ACPI0003" },
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{ "VPC2004" },
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{ "BCM4752" },
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@ -405,7 +405,6 @@ static int acpi_processor_add(struct acpi_device *device,
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goto err;
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pr->dev = dev;
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dev->offline = pr->flags.need_hotplug_init;
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/* Trigger the processor driver's .probe() if present. */
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if (device_attach(dev) >= 0)
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|
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@ -141,9 +141,9 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE);
|
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* address. Although ACPICA adheres to the ACPI specification which
|
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* requires the use of the corresponding 64-bit address if it is non-zero,
|
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* some machines have been found to have a corrupted non-zero 64-bit
|
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* address. Default is FALSE, do not favor the 32-bit addresses.
|
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* address. Default is TRUE, favor the 32-bit addresses.
|
||||
*/
|
||||
ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
|
||||
ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE);
|
||||
|
||||
/*
|
||||
* Optionally truncate I/O addresses to 16 bits. Provides compatibility
|
||||
|
||||
@ -461,6 +461,7 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
|
||||
u32 table_count;
|
||||
struct acpi_table_header *table;
|
||||
acpi_physical_address address;
|
||||
acpi_physical_address rsdt_address;
|
||||
u32 length;
|
||||
u8 *table_entry;
|
||||
acpi_status status;
|
||||
@ -488,11 +489,14 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
|
||||
* as per the ACPI specification.
|
||||
*/
|
||||
address = (acpi_physical_address) rsdp->xsdt_physical_address;
|
||||
rsdt_address =
|
||||
(acpi_physical_address) rsdp->rsdt_physical_address;
|
||||
table_entry_size = ACPI_XSDT_ENTRY_SIZE;
|
||||
} else {
|
||||
/* Root table is an RSDT (32-bit physical addresses) */
|
||||
|
||||
address = (acpi_physical_address) rsdp->rsdt_physical_address;
|
||||
rsdt_address = address;
|
||||
table_entry_size = ACPI_RSDT_ENTRY_SIZE;
|
||||
}
|
||||
|
||||
@ -515,8 +519,7 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
|
||||
|
||||
/* Fall back to the RSDT */
|
||||
|
||||
address =
|
||||
(acpi_physical_address) rsdp->rsdt_physical_address;
|
||||
address = rsdt_address;
|
||||
table_entry_size = ACPI_RSDT_ENTRY_SIZE;
|
||||
}
|
||||
}
|
||||
|
||||
@ -36,6 +36,12 @@
|
||||
#include <linux/suspend.h>
|
||||
#include <asm/unaligned.h>
|
||||
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
#include <linux/proc_fs.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <asm/uaccess.h>
|
||||
#endif
|
||||
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/power_supply.h>
|
||||
|
||||
@ -64,6 +70,19 @@ static unsigned int cache_time = 1000;
|
||||
module_param(cache_time, uint, 0644);
|
||||
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
|
||||
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
|
||||
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
|
||||
|
||||
enum acpi_battery_files {
|
||||
info_tag = 0,
|
||||
state_tag,
|
||||
alarm_tag,
|
||||
ACPI_BATTERY_NUMFILES,
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
static const struct acpi_device_id battery_device_ids[] = {
|
||||
{"PNP0C0A", 0},
|
||||
{"", 0},
|
||||
@ -299,6 +318,14 @@ static enum power_supply_property energy_battery_props[] = {
|
||||
POWER_SUPPLY_PROP_SERIAL_NUMBER,
|
||||
};
|
||||
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
inline char *acpi_battery_units(struct acpi_battery *battery)
|
||||
{
|
||||
return (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) ?
|
||||
"mA" : "mW";
|
||||
}
|
||||
#endif
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Battery Management
|
||||
-------------------------------------------------------------------------- */
|
||||
@ -716,6 +743,279 @@ static void acpi_battery_refresh(struct acpi_battery *battery)
|
||||
sysfs_add_battery(battery);
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
FS Interface (/proc)
|
||||
-------------------------------------------------------------------------- */
|
||||
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
static struct proc_dir_entry *acpi_battery_dir;
|
||||
|
||||
static int acpi_battery_print_info(struct seq_file *seq, int result)
|
||||
{
|
||||
struct acpi_battery *battery = seq->private;
|
||||
|
||||
if (result)
|
||||
goto end;
|
||||
|
||||
seq_printf(seq, "present: %s\n",
|
||||
acpi_battery_present(battery) ? "yes" : "no");
|
||||
if (!acpi_battery_present(battery))
|
||||
goto end;
|
||||
if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
|
||||
seq_printf(seq, "design capacity: unknown\n");
|
||||
else
|
||||
seq_printf(seq, "design capacity: %d %sh\n",
|
||||
battery->design_capacity,
|
||||
acpi_battery_units(battery));
|
||||
|
||||
if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
|
||||
seq_printf(seq, "last full capacity: unknown\n");
|
||||
else
|
||||
seq_printf(seq, "last full capacity: %d %sh\n",
|
||||
battery->full_charge_capacity,
|
||||
acpi_battery_units(battery));
|
||||
|
||||
seq_printf(seq, "battery technology: %srechargeable\n",
|
||||
(!battery->technology)?"non-":"");
|
||||
|
||||
if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
|
||||
seq_printf(seq, "design voltage: unknown\n");
|
||||
else
|
||||
seq_printf(seq, "design voltage: %d mV\n",
|
||||
battery->design_voltage);
|
||||
seq_printf(seq, "design capacity warning: %d %sh\n",
|
||||
battery->design_capacity_warning,
|
||||
acpi_battery_units(battery));
|
||||
seq_printf(seq, "design capacity low: %d %sh\n",
|
||||
battery->design_capacity_low,
|
||||
acpi_battery_units(battery));
|
||||
seq_printf(seq, "cycle count: %i\n", battery->cycle_count);
|
||||
seq_printf(seq, "capacity granularity 1: %d %sh\n",
|
||||
battery->capacity_granularity_1,
|
||||
acpi_battery_units(battery));
|
||||
seq_printf(seq, "capacity granularity 2: %d %sh\n",
|
||||
battery->capacity_granularity_2,
|
||||
acpi_battery_units(battery));
|
||||
seq_printf(seq, "model number: %s\n", battery->model_number);
|
||||
seq_printf(seq, "serial number: %s\n", battery->serial_number);
|
||||
seq_printf(seq, "battery type: %s\n", battery->type);
|
||||
seq_printf(seq, "OEM info: %s\n", battery->oem_info);
|
||||
end:
|
||||
if (result)
|
||||
seq_printf(seq, "ERROR: Unable to read battery info\n");
|
||||
return result;
|
||||
}
|
||||
|
||||
static int acpi_battery_print_state(struct seq_file *seq, int result)
|
||||
{
|
||||
struct acpi_battery *battery = seq->private;
|
||||
|
||||
if (result)
|
||||
goto end;
|
||||
|
||||
seq_printf(seq, "present: %s\n",
|
||||
acpi_battery_present(battery) ? "yes" : "no");
|
||||
if (!acpi_battery_present(battery))
|
||||
goto end;
|
||||
|
||||
seq_printf(seq, "capacity state: %s\n",
|
||||
(battery->state & 0x04) ? "critical" : "ok");
|
||||
if ((battery->state & 0x01) && (battery->state & 0x02))
|
||||
seq_printf(seq,
|
||||
"charging state: charging/discharging\n");
|
||||
else if (battery->state & 0x01)
|
||||
seq_printf(seq, "charging state: discharging\n");
|
||||
else if (battery->state & 0x02)
|
||||
seq_printf(seq, "charging state: charging\n");
|
||||
else
|
||||
seq_printf(seq, "charging state: charged\n");
|
||||
|
||||
if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN)
|
||||
seq_printf(seq, "present rate: unknown\n");
|
||||
else
|
||||
seq_printf(seq, "present rate: %d %s\n",
|
||||
battery->rate_now, acpi_battery_units(battery));
|
||||
|
||||
if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN)
|
||||
seq_printf(seq, "remaining capacity: unknown\n");
|
||||
else
|
||||
seq_printf(seq, "remaining capacity: %d %sh\n",
|
||||
battery->capacity_now, acpi_battery_units(battery));
|
||||
if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN)
|
||||
seq_printf(seq, "present voltage: unknown\n");
|
||||
else
|
||||
seq_printf(seq, "present voltage: %d mV\n",
|
||||
battery->voltage_now);
|
||||
end:
|
||||
if (result)
|
||||
seq_printf(seq, "ERROR: Unable to read battery state\n");
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static int acpi_battery_print_alarm(struct seq_file *seq, int result)
|
||||
{
|
||||
struct acpi_battery *battery = seq->private;
|
||||
|
||||
if (result)
|
||||
goto end;
|
||||
|
||||
if (!acpi_battery_present(battery)) {
|
||||
seq_printf(seq, "present: no\n");
|
||||
goto end;
|
||||
}
|
||||
seq_printf(seq, "alarm: ");
|
||||
if (!battery->alarm)
|
||||
seq_printf(seq, "unsupported\n");
|
||||
else
|
||||
seq_printf(seq, "%u %sh\n", battery->alarm,
|
||||
acpi_battery_units(battery));
|
||||
end:
|
||||
if (result)
|
||||
seq_printf(seq, "ERROR: Unable to read battery alarm\n");
|
||||
return result;
|
||||
}
|
||||
|
||||
static ssize_t acpi_battery_write_alarm(struct file *file,
|
||||
const char __user * buffer,
|
||||
size_t count, loff_t * ppos)
|
||||
{
|
||||
int result = 0;
|
||||
char alarm_string[12] = { '\0' };
|
||||
struct seq_file *m = file->private_data;
|
||||
struct acpi_battery *battery = m->private;
|
||||
|
||||
if (!battery || (count > sizeof(alarm_string) - 1))
|
||||
return -EINVAL;
|
||||
if (!acpi_battery_present(battery)) {
|
||||
result = -ENODEV;
|
||||
goto end;
|
||||
}
|
||||
if (copy_from_user(alarm_string, buffer, count)) {
|
||||
result = -EFAULT;
|
||||
goto end;
|
||||
}
|
||||
alarm_string[count] = '\0';
|
||||
battery->alarm = simple_strtol(alarm_string, NULL, 0);
|
||||
result = acpi_battery_set_alarm(battery);
|
||||
end:
|
||||
if (!result)
|
||||
return count;
|
||||
return result;
|
||||
}
|
||||
|
||||
typedef int(*print_func)(struct seq_file *seq, int result);
|
||||
|
||||
static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = {
|
||||
acpi_battery_print_info,
|
||||
acpi_battery_print_state,
|
||||
acpi_battery_print_alarm,
|
||||
};
|
||||
|
||||
static int acpi_battery_read(int fid, struct seq_file *seq)
|
||||
{
|
||||
struct acpi_battery *battery = seq->private;
|
||||
int result = acpi_battery_update(battery);
|
||||
return acpi_print_funcs[fid](seq, result);
|
||||
}
|
||||
|
||||
#define DECLARE_FILE_FUNCTIONS(_name) \
|
||||
static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \
|
||||
{ \
|
||||
return acpi_battery_read(_name##_tag, seq); \
|
||||
} \
|
||||
static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \
|
||||
{ \
|
||||
return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \
|
||||
}
|
||||
|
||||
DECLARE_FILE_FUNCTIONS(info);
|
||||
DECLARE_FILE_FUNCTIONS(state);
|
||||
DECLARE_FILE_FUNCTIONS(alarm);
|
||||
|
||||
#undef DECLARE_FILE_FUNCTIONS
|
||||
|
||||
#define FILE_DESCRIPTION_RO(_name) \
|
||||
{ \
|
||||
.name = __stringify(_name), \
|
||||
.mode = S_IRUGO, \
|
||||
.ops = { \
|
||||
.open = acpi_battery_##_name##_open_fs, \
|
||||
.read = seq_read, \
|
||||
.llseek = seq_lseek, \
|
||||
.release = single_release, \
|
||||
.owner = THIS_MODULE, \
|
||||
}, \
|
||||
}
|
||||
|
||||
#define FILE_DESCRIPTION_RW(_name) \
|
||||
{ \
|
||||
.name = __stringify(_name), \
|
||||
.mode = S_IFREG | S_IRUGO | S_IWUSR, \
|
||||
.ops = { \
|
||||
.open = acpi_battery_##_name##_open_fs, \
|
||||
.read = seq_read, \
|
||||
.llseek = seq_lseek, \
|
||||
.write = acpi_battery_write_##_name, \
|
||||
.release = single_release, \
|
||||
.owner = THIS_MODULE, \
|
||||
}, \
|
||||
}
|
||||
|
||||
static const struct battery_file {
|
||||
struct file_operations ops;
|
||||
umode_t mode;
|
||||
const char *name;
|
||||
} acpi_battery_file[] = {
|
||||
FILE_DESCRIPTION_RO(info),
|
||||
FILE_DESCRIPTION_RO(state),
|
||||
FILE_DESCRIPTION_RW(alarm),
|
||||
};
|
||||
|
||||
#undef FILE_DESCRIPTION_RO
|
||||
#undef FILE_DESCRIPTION_RW
|
||||
|
||||
static int acpi_battery_add_fs(struct acpi_device *device)
|
||||
{
|
||||
struct proc_dir_entry *entry = NULL;
|
||||
int i;
|
||||
|
||||
printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded,"
|
||||
" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
|
||||
if (!acpi_device_dir(device)) {
|
||||
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
|
||||
acpi_battery_dir);
|
||||
if (!acpi_device_dir(device))
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
|
||||
entry = proc_create_data(acpi_battery_file[i].name,
|
||||
acpi_battery_file[i].mode,
|
||||
acpi_device_dir(device),
|
||||
&acpi_battery_file[i].ops,
|
||||
acpi_driver_data(device));
|
||||
if (!entry)
|
||||
return -ENODEV;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void acpi_battery_remove_fs(struct acpi_device *device)
|
||||
{
|
||||
int i;
|
||||
if (!acpi_device_dir(device))
|
||||
return;
|
||||
for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i)
|
||||
remove_proc_entry(acpi_battery_file[i].name,
|
||||
acpi_device_dir(device));
|
||||
|
||||
remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
|
||||
acpi_device_dir(device) = NULL;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Driver Interface
|
||||
-------------------------------------------------------------------------- */
|
||||
@ -790,6 +1090,15 @@ static int acpi_battery_add(struct acpi_device *device)
|
||||
result = acpi_battery_update(battery);
|
||||
if (result)
|
||||
goto fail;
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
result = acpi_battery_add_fs(device);
|
||||
#endif
|
||||
if (result) {
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
acpi_battery_remove_fs(device);
|
||||
#endif
|
||||
goto fail;
|
||||
}
|
||||
|
||||
printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n",
|
||||
ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
|
||||
@ -816,6 +1125,9 @@ static int acpi_battery_remove(struct acpi_device *device)
|
||||
return -EINVAL;
|
||||
battery = acpi_driver_data(device);
|
||||
unregister_pm_notifier(&battery->pm_nb);
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
acpi_battery_remove_fs(device);
|
||||
#endif
|
||||
sysfs_remove_battery(battery);
|
||||
mutex_destroy(&battery->lock);
|
||||
mutex_destroy(&battery->sysfs_lock);
|
||||
@ -866,7 +1178,19 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie)
|
||||
|
||||
if (dmi_check_system(bat_dmi_table))
|
||||
battery_bix_broken_package = 1;
|
||||
acpi_bus_register_driver(&acpi_battery_driver);
|
||||
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
acpi_battery_dir = acpi_lock_battery_dir();
|
||||
if (!acpi_battery_dir)
|
||||
return;
|
||||
#endif
|
||||
if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
acpi_unlock_battery_dir(acpi_battery_dir);
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
static int __init acpi_battery_init(void)
|
||||
@ -878,6 +1202,9 @@ static int __init acpi_battery_init(void)
|
||||
static void __exit acpi_battery_exit(void)
|
||||
{
|
||||
acpi_bus_unregister_driver(&acpi_battery_driver);
|
||||
#ifdef CONFIG_ACPI_PROCFS_POWER
|
||||
acpi_unlock_battery_dir(acpi_battery_dir);
|
||||
#endif
|
||||
}
|
||||
|
||||
module_init(acpi_battery_init);
|
||||
|
||||
@ -314,6 +314,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
|
||||
DMI_MATCH(DMI_PRODUCT_VERSION, "2349D15"),
|
||||
},
|
||||
},
|
||||
{
|
||||
.callback = dmi_disable_osi_win8,
|
||||
.ident = "Dell Inspiron 7737",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
|
||||
},
|
||||
},
|
||||
|
||||
/*
|
||||
* BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
|
||||
@ -374,6 +382,19 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
|
||||
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"),
|
||||
},
|
||||
},
|
||||
/*
|
||||
* Without this this EEEpc exports a non working WMI interface, with
|
||||
* this it exports a working "good old" eeepc_laptop interface, fixing
|
||||
* both brightness control, and rfkill not working.
|
||||
*/
|
||||
{
|
||||
.callback = dmi_enable_osi_linux,
|
||||
.ident = "Asus EEE PC 1015PX",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
|
||||
},
|
||||
},
|
||||
{}
|
||||
};
|
||||
|
||||
|
||||
105
drivers/acpi/cm_sbs.c
Normal file
105
drivers/acpi/cm_sbs.c
Normal file
@ -0,0 +1,105 @@
|
||||
/*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or (at
|
||||
* your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/proc_fs.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <acpi/acpi_bus.h>
|
||||
#include <acpi/acpi_drivers.h>
|
||||
|
||||
#define PREFIX "ACPI: "
|
||||
|
||||
ACPI_MODULE_NAME("cm_sbs");
|
||||
#define ACPI_AC_CLASS "ac_adapter"
|
||||
#define ACPI_BATTERY_CLASS "battery"
|
||||
#define _COMPONENT ACPI_SBS_COMPONENT
|
||||
static struct proc_dir_entry *acpi_ac_dir;
|
||||
static struct proc_dir_entry *acpi_battery_dir;
|
||||
|
||||
static DEFINE_MUTEX(cm_sbs_mutex);
|
||||
|
||||
static int lock_ac_dir_cnt;
|
||||
static int lock_battery_dir_cnt;
|
||||
|
||||
struct proc_dir_entry *acpi_lock_ac_dir(void)
|
||||
{
|
||||
mutex_lock(&cm_sbs_mutex);
|
||||
if (!acpi_ac_dir)
|
||||
acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
|
||||
if (acpi_ac_dir) {
|
||||
lock_ac_dir_cnt++;
|
||||
} else {
|
||||
printk(KERN_ERR PREFIX
|
||||
"Cannot create %s\n", ACPI_AC_CLASS);
|
||||
}
|
||||
mutex_unlock(&cm_sbs_mutex);
|
||||
return acpi_ac_dir;
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_lock_ac_dir);
|
||||
|
||||
void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param)
|
||||
{
|
||||
mutex_lock(&cm_sbs_mutex);
|
||||
if (acpi_ac_dir_param)
|
||||
lock_ac_dir_cnt--;
|
||||
if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) {
|
||||
remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
|
||||
acpi_ac_dir = NULL;
|
||||
}
|
||||
mutex_unlock(&cm_sbs_mutex);
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_unlock_ac_dir);
|
||||
|
||||
struct proc_dir_entry *acpi_lock_battery_dir(void)
|
||||
{
|
||||
mutex_lock(&cm_sbs_mutex);
|
||||
if (!acpi_battery_dir) {
|
||||
acpi_battery_dir =
|
||||
proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
|
||||
}
|
||||
if (acpi_battery_dir) {
|
||||
lock_battery_dir_cnt++;
|
||||
} else {
|
||||
printk(KERN_ERR PREFIX
|
||||
"Cannot create %s\n", ACPI_BATTERY_CLASS);
|
||||
}
|
||||
mutex_unlock(&cm_sbs_mutex);
|
||||
return acpi_battery_dir;
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_lock_battery_dir);
|
||||
|
||||
void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param)
|
||||
{
|
||||
mutex_lock(&cm_sbs_mutex);
|
||||
if (acpi_battery_dir_param)
|
||||
lock_battery_dir_cnt--;
|
||||
if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param
|
||||
&& acpi_battery_dir) {
|
||||
remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
|
||||
acpi_battery_dir = NULL;
|
||||
}
|
||||
mutex_unlock(&cm_sbs_mutex);
|
||||
return;
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_unlock_battery_dir);
|
||||
@ -457,10 +457,10 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
|
||||
},
|
||||
{
|
||||
.callback = video_set_use_native_backlight,
|
||||
.ident = "ThinkPad T430s",
|
||||
.ident = "ThinkPad T430 and T430s",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
||||
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T430s"),
|
||||
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T430"),
|
||||
},
|
||||
},
|
||||
{
|
||||
@ -472,7 +472,7 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
|
||||
},
|
||||
},
|
||||
{
|
||||
.callback = video_set_use_native_backlight,
|
||||
.callback = video_set_use_native_backlight,
|
||||
.ident = "ThinkPad X1 Carbon",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
||||
@ -500,7 +500,7 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
|
||||
.ident = "Dell Inspiron 7520",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
|
||||
DMI_MATCH(DMI_PRODUCT_VERSION, "Inspiron 7520"),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"),
|
||||
},
|
||||
},
|
||||
{
|
||||
@ -511,6 +511,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5733Z"),
|
||||
},
|
||||
},
|
||||
{
|
||||
.callback = video_set_use_native_backlight,
|
||||
.ident = "Acer Aspire 5742G",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5742G"),
|
||||
},
|
||||
},
|
||||
{
|
||||
.callback = video_set_use_native_backlight,
|
||||
.ident = "Acer Aspire V5-431",
|
||||
|
||||
@ -328,13 +328,11 @@ int tpm_add_ppi(struct kobject *parent)
|
||||
/* Cache TPM ACPI handle and version string */
|
||||
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
|
||||
ppi_callback, NULL, NULL, &tpm_ppi_handle);
|
||||
if (tpm_ppi_handle == NULL)
|
||||
return -ENODEV;
|
||||
|
||||
return sysfs_create_group(parent, &ppi_attr_grp);
|
||||
return tpm_ppi_handle ? sysfs_create_group(parent, &ppi_attr_grp) : 0;
|
||||
}
|
||||
|
||||
void tpm_remove_ppi(struct kobject *parent)
|
||||
{
|
||||
sysfs_remove_group(parent, &ppi_attr_grp);
|
||||
if (tpm_ppi_handle)
|
||||
sysfs_remove_group(parent, &ppi_attr_grp);
|
||||
}
|
||||
|
||||
@ -37,6 +37,7 @@
|
||||
#define BYT_RATIOS 0x66a
|
||||
#define BYT_VIDS 0x66b
|
||||
#define BYT_TURBO_RATIOS 0x66c
|
||||
#define BYT_TURBO_VIDS 0x66d
|
||||
|
||||
|
||||
#define FRAC_BITS 6
|
||||
@ -70,8 +71,9 @@ struct pstate_data {
|
||||
};
|
||||
|
||||
struct vid_data {
|
||||
int32_t min;
|
||||
int32_t max;
|
||||
int min;
|
||||
int max;
|
||||
int turbo;
|
||||
int32_t ratio;
|
||||
};
|
||||
|
||||
@ -359,14 +361,14 @@ static int byt_get_min_pstate(void)
|
||||
{
|
||||
u64 value;
|
||||
rdmsrl(BYT_RATIOS, value);
|
||||
return (value >> 8) & 0xFF;
|
||||
return (value >> 8) & 0x3F;
|
||||
}
|
||||
|
||||
static int byt_get_max_pstate(void)
|
||||
{
|
||||
u64 value;
|
||||
rdmsrl(BYT_RATIOS, value);
|
||||
return (value >> 16) & 0xFF;
|
||||
return (value >> 16) & 0x3F;
|
||||
}
|
||||
|
||||
static int byt_get_turbo_pstate(void)
|
||||
@ -393,6 +395,9 @@ static void byt_set_pstate(struct cpudata *cpudata, int pstate)
|
||||
vid_fp = clamp_t(int32_t, vid_fp, cpudata->vid.min, cpudata->vid.max);
|
||||
vid = fp_toint(vid_fp);
|
||||
|
||||
if (pstate > cpudata->pstate.max_pstate)
|
||||
vid = cpudata->vid.turbo;
|
||||
|
||||
val |= vid;
|
||||
|
||||
wrmsrl(MSR_IA32_PERF_CTL, val);
|
||||
@ -402,13 +407,17 @@ static void byt_get_vid(struct cpudata *cpudata)
|
||||
{
|
||||
u64 value;
|
||||
|
||||
|
||||
rdmsrl(BYT_VIDS, value);
|
||||
cpudata->vid.min = int_tofp((value >> 8) & 0x7f);
|
||||
cpudata->vid.max = int_tofp((value >> 16) & 0x7f);
|
||||
cpudata->vid.min = int_tofp((value >> 8) & 0x3f);
|
||||
cpudata->vid.max = int_tofp((value >> 16) & 0x3f);
|
||||
cpudata->vid.ratio = div_fp(
|
||||
cpudata->vid.max - cpudata->vid.min,
|
||||
int_tofp(cpudata->pstate.max_pstate -
|
||||
cpudata->pstate.min_pstate));
|
||||
|
||||
rdmsrl(BYT_TURBO_VIDS, value);
|
||||
cpudata->vid.turbo = value & 0x7f;
|
||||
}
|
||||
|
||||
|
||||
@ -545,12 +554,7 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
|
||||
|
||||
if (pstate_funcs.get_vid)
|
||||
pstate_funcs.get_vid(cpu);
|
||||
|
||||
/*
|
||||
* goto max pstate so we don't slow up boot if we are built-in if we are
|
||||
* a module we will take care of it during normal operation
|
||||
*/
|
||||
intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);
|
||||
intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
|
||||
}
|
||||
|
||||
static inline void intel_pstate_calc_busy(struct cpudata *cpu,
|
||||
@ -695,11 +699,6 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
|
||||
cpu = all_cpu_data[cpunum];
|
||||
|
||||
intel_pstate_get_cpu_pstates(cpu);
|
||||
if (!cpu->pstate.current_pstate) {
|
||||
all_cpu_data[cpunum] = NULL;
|
||||
kfree(cpu);
|
||||
return -ENODATA;
|
||||
}
|
||||
|
||||
cpu->cpu = cpunum;
|
||||
|
||||
@ -710,7 +709,6 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
|
||||
cpu->timer.expires = jiffies + HZ/100;
|
||||
intel_pstate_busy_pid_reset(cpu);
|
||||
intel_pstate_sample(cpu);
|
||||
intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);
|
||||
|
||||
add_timer_on(&cpu->timer, cpunum);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user