mirror of
https://github.com/Fishwaldo/Star64_linux.git
synced 2025-06-25 08:02:56 +00:00
More ACPI and power management updates for 3.16-rc1
- I didn't remember correctly that the Hans de Goede's ACPI video
patches actually didn't flip the video.use_native_backlight
default, although we had discussed that and decided to do that.
Since I said we would do that in the previous PM+ACPI pull
request, make that change for real now.
- ACPI bus check notifications for PCI host bridges don't cause
the bus below the host bridge to be checked for changes as they
should because of a mistake in the ACPI-based PCI hotplug (ACPIPHP)
subsystem that forgets to add hotplug contexts to PCI host bridge
ACPI device objects. Create hotplug contexts for PCI host bridges
too as appropriate.
- Revert recent cpufreq commit related to the big.LITTLE cpufreq
driver that breaks arm64 builds.
- Fix for a regression in the ppc-corenet cpufreq driver introduced
during the 3.15 cycle and causing the driver to use the remainder
from do_div instead of the quotient. From Ed Swarthout.
- Resets triggered by panic activate a BUG_ON() in vmalloc.c on
systems where the ACPI reset register is located in memory address
space. Fix from Randy Wright.
- Fix for a problem with cpufreq governors that decisions made by
them may be suboptimal due to the fact that deferrable timers are
used by them for CPU load sampling. From Srivatsa S Bhat.
- Fix for a problem with the Tegra cpufreq driver where the CPU
frequency is temporarily switched to a "stable" level that
is different from both the initial and target frequencies
during transitions which causes udelay() to expire earlier than
it should sometimes. From Viresh Kumar.
- New trace points and rework of some existing trace points for
system suspend/resume profiling from Todd Brandt.
- Assorted cpufreq fixes and cleanups from Stratos Karafotis and
Viresh Kumar.
- Copyright notice update for suspend-and-cpuhotplug.txt from
Srivatsa S Bhat.
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQIcBAABCAAGBQJTmeBNAAoJEILEb/54YlRxFo0QAIfp74wZO9ZPcrR+6IO1AEUb
1qcVJYMFWvisG2JO9b7DUtxwgWHk8/NMgKv+bYxUAEni95mY7PqDTdJ+Qjk7DinJ
jVo+mzooaQg+KYGQ503YOtqsGhNFM3lE6Jw01wbLytTCetkNCkTgr//7btBbyRKn
13Ut3o2vH9n5EMoe1jql96onJH6AfBDEn7jc5Sk4rGL7MtKAMsWNTNSGVyLFA98l
sghO8ZR0AqnBzoedr1eBxzo6ujUqjfYlIcxowZycpJJVX02eN+KGUbOJao2+6RB+
J6wu/FoPv2VtJkNwSB8IMgZfqceecSIXeWBG5xC22cYbSQ/IDW2k72V+kLHUqd36
LhlYLIsIxJQovqOgPdKeP5o6OVFd4EheWBiCfNBrmYU+x2av6I6ZjTscz3Robaxh
AVG6yU8XR2GOpoVGW/+L7R2jZ1Qse1Io0r93hXvCsSXgMkq9HbueX3mZR605msfe
liDk+fym357cKQUreSH1XF0Q79C1wpEJ6rTz0Qi6ZxkKB+dAYE3oPA+V0+cWSxbK
WqaFjQwPtvrrduvLj5Z+qF/zRu4LXdTxiY59utBek/RoN6zUsMMpwsRCCdBfub2O
alBOHUPRaiUywkQtqu7yP9j7iciNxEn1/tXo97b/1qC3RrOwLWOgd8dhpWe0i0Gp
EmQkie8qCHXw5vCpaeUK
=0lht
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-3.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management updates from Rafael Wysocki:
"These are fixups on top of the previous PM+ACPI pull request,
regression fixes (ACPI hotplug, cpufreq ppc-corenet), other bug fixes
(ACPI reset, cpufreq), new PM trace points for system suspend
profiling and a copyright notice update.
Specifics:
- I didn't remember correctly that the Hans de Goede's ACPI video
patches actually didn't flip the video.use_native_backlight
default, although we had discussed that and decided to do that.
Since I said we would do that in the previous PM+ACPI pull request,
make that change for real now.
- ACPI bus check notifications for PCI host bridges don't cause the
bus below the host bridge to be checked for changes as they should
because of a mistake in the ACPI-based PCI hotplug (ACPIPHP)
subsystem that forgets to add hotplug contexts to PCI host bridge
ACPI device objects. Create hotplug contexts for PCI host bridges
too as appropriate.
- Revert recent cpufreq commit related to the big.LITTLE cpufreq
driver that breaks arm64 builds.
- Fix for a regression in the ppc-corenet cpufreq driver introduced
during the 3.15 cycle and causing the driver to use the remainder
from do_div instead of the quotient. From Ed Swarthout.
- Resets triggered by panic activate a BUG_ON() in vmalloc.c on
systems where the ACPI reset register is located in memory address
space. Fix from Randy Wright.
- Fix for a problem with cpufreq governors that decisions made by
them may be suboptimal due to the fact that deferrable timers are
used by them for CPU load sampling. From Srivatsa S Bhat.
- Fix for a problem with the Tegra cpufreq driver where the CPU
frequency is temporarily switched to a "stable" level that is
different from both the initial and target frequencies during
transitions which causes udelay() to expire earlier than it should
sometimes. From Viresh Kumar.
- New trace points and rework of some existing trace points for
system suspend/resume profiling from Todd Brandt.
- Assorted cpufreq fixes and cleanups from Stratos Karafotis and
Viresh Kumar.
- Copyright notice update for suspend-and-cpuhotplug.txt from
Srivatsa S Bhat"
* tag 'pm+acpi-3.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / hotplug / PCI: Add hotplug contexts to PCI host bridges
PM / sleep: trace events for device PM callbacks
cpufreq: cpufreq-cpu0: remove dependency on THERMAL and REGULATOR
cpufreq: tegra: update comment for clarity
cpufreq: intel_pstate: Remove duplicate CPU ID check
cpufreq: Mark CPU0 driver with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag
PM / Documentation: Update copyright in suspend-and-cpuhotplug.txt
cpufreq: governor: remove copy_prev_load from 'struct cpu_dbs_common_info'
cpufreq: governor: Be friendly towards latency-sensitive bursty workloads
PM / sleep: trace events for suspend/resume
cpufreq: ppc-corenet-cpu-freq: do_div use quotient
Revert "cpufreq: Enable big.LITTLE cpufreq driver on arm64"
cpufreq: Tegra: implement intermediate frequency callbacks
cpufreq: add support for intermediate (stable) frequencies
ACPI / video: Change the default for video.use_native_backlight to 1
ACPI: Fix bug when ACPI reset register is implemented in system memory
This commit is contained in:
Linus Torvalds
commit
19c1940fea
24 changed files with 446 additions and 122 deletions
|
|
@ -20,6 +20,7 @@
|
|||
#include <linux/gfp.h>
|
||||
#include <linux/suspend.h>
|
||||
#include <linux/lockdep.h>
|
||||
#include <trace/events/power.h>
|
||||
|
||||
#include "smpboot.h"
|
||||
|
||||
|
|
@ -520,7 +521,9 @@ int disable_nonboot_cpus(void)
|
|||
for_each_online_cpu(cpu) {
|
||||
if (cpu == first_cpu)
|
||||
continue;
|
||||
trace_suspend_resume(TPS("CPU_OFF"), cpu, true);
|
||||
error = _cpu_down(cpu, 1);
|
||||
trace_suspend_resume(TPS("CPU_OFF"), cpu, false);
|
||||
if (!error)
|
||||
cpumask_set_cpu(cpu, frozen_cpus);
|
||||
else {
|
||||
|
|
@ -563,7 +566,9 @@ void __ref enable_nonboot_cpus(void)
|
|||
arch_enable_nonboot_cpus_begin();
|
||||
|
||||
for_each_cpu(cpu, frozen_cpus) {
|
||||
trace_suspend_resume(TPS("CPU_ON"), cpu, true);
|
||||
error = _cpu_up(cpu, 1);
|
||||
trace_suspend_resume(TPS("CPU_ON"), cpu, false);
|
||||
if (!error) {
|
||||
pr_info("CPU%d is up\n", cpu);
|
||||
continue;
|
||||
|
|
|
|||
|
|
@ -28,6 +28,7 @@
|
|||
#include <linux/syscore_ops.h>
|
||||
#include <linux/ctype.h>
|
||||
#include <linux/genhd.h>
|
||||
#include <trace/events/power.h>
|
||||
|
||||
#include "power.h"
|
||||
|
||||
|
|
@ -292,7 +293,9 @@ static int create_image(int platform_mode)
|
|||
|
||||
in_suspend = 1;
|
||||
save_processor_state();
|
||||
trace_suspend_resume(TPS("machine_suspend"), PM_EVENT_HIBERNATE, true);
|
||||
error = swsusp_arch_suspend();
|
||||
trace_suspend_resume(TPS("machine_suspend"), PM_EVENT_HIBERNATE, false);
|
||||
if (error)
|
||||
printk(KERN_ERR "PM: Error %d creating hibernation image\n",
|
||||
error);
|
||||
|
|
|
|||
|
|
@ -17,6 +17,7 @@
|
|||
#include <linux/delay.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/kmod.h>
|
||||
#include <trace/events/power.h>
|
||||
|
||||
/*
|
||||
* Timeout for stopping processes
|
||||
|
|
@ -175,6 +176,7 @@ void thaw_processes(void)
|
|||
struct task_struct *g, *p;
|
||||
struct task_struct *curr = current;
|
||||
|
||||
trace_suspend_resume(TPS("thaw_processes"), 0, true);
|
||||
if (pm_freezing)
|
||||
atomic_dec(&system_freezing_cnt);
|
||||
pm_freezing = false;
|
||||
|
|
@ -201,6 +203,7 @@ void thaw_processes(void)
|
|||
|
||||
schedule();
|
||||
printk("done.\n");
|
||||
trace_suspend_resume(TPS("thaw_processes"), 0, false);
|
||||
}
|
||||
|
||||
void thaw_kernel_threads(void)
|
||||
|
|
|
|||
|
|
@ -177,7 +177,9 @@ static int suspend_prepare(suspend_state_t state)
|
|||
if (error)
|
||||
goto Finish;
|
||||
|
||||
trace_suspend_resume(TPS("freeze_processes"), 0, true);
|
||||
error = suspend_freeze_processes();
|
||||
trace_suspend_resume(TPS("freeze_processes"), 0, false);
|
||||
if (!error)
|
||||
return 0;
|
||||
|
||||
|
|
@ -240,7 +242,9 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
|
|||
* all the devices are suspended.
|
||||
*/
|
||||
if (state == PM_SUSPEND_FREEZE) {
|
||||
trace_suspend_resume(TPS("machine_suspend"), state, true);
|
||||
freeze_enter();
|
||||
trace_suspend_resume(TPS("machine_suspend"), state, false);
|
||||
goto Platform_wake;
|
||||
}
|
||||
|
||||
|
|
@ -256,7 +260,11 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
|
|||
if (!error) {
|
||||
*wakeup = pm_wakeup_pending();
|
||||
if (!(suspend_test(TEST_CORE) || *wakeup)) {
|
||||
trace_suspend_resume(TPS("machine_suspend"),
|
||||
state, true);
|
||||
error = suspend_ops->enter(state);
|
||||
trace_suspend_resume(TPS("machine_suspend"),
|
||||
state, false);
|
||||
events_check_enabled = false;
|
||||
}
|
||||
syscore_resume();
|
||||
|
|
@ -294,7 +302,6 @@ int suspend_devices_and_enter(suspend_state_t state)
|
|||
if (need_suspend_ops(state) && !suspend_ops)
|
||||
return -ENOSYS;
|
||||
|
||||
trace_machine_suspend(state);
|
||||
if (need_suspend_ops(state) && suspend_ops->begin) {
|
||||
error = suspend_ops->begin(state);
|
||||
if (error)
|
||||
|
|
@ -331,7 +338,6 @@ int suspend_devices_and_enter(suspend_state_t state)
|
|||
else if (state == PM_SUSPEND_FREEZE && freeze_ops->end)
|
||||
freeze_ops->end();
|
||||
|
||||
trace_machine_suspend(PWR_EVENT_EXIT);
|
||||
return error;
|
||||
|
||||
Recover_platform:
|
||||
|
|
@ -365,6 +371,7 @@ static int enter_state(suspend_state_t state)
|
|||
{
|
||||
int error;
|
||||
|
||||
trace_suspend_resume(TPS("suspend_enter"), state, true);
|
||||
if (state == PM_SUSPEND_FREEZE) {
|
||||
#ifdef CONFIG_PM_DEBUG
|
||||
if (pm_test_level != TEST_NONE && pm_test_level <= TEST_CPUS) {
|
||||
|
|
@ -382,9 +389,11 @@ static int enter_state(suspend_state_t state)
|
|||
if (state == PM_SUSPEND_FREEZE)
|
||||
freeze_begin();
|
||||
|
||||
trace_suspend_resume(TPS("sync_filesystems"), 0, true);
|
||||
printk(KERN_INFO "PM: Syncing filesystems ... ");
|
||||
sys_sync();
|
||||
printk("done.\n");
|
||||
trace_suspend_resume(TPS("sync_filesystems"), 0, false);
|
||||
|
||||
pr_debug("PM: Preparing system for %s sleep\n", pm_states[state].label);
|
||||
error = suspend_prepare(state);
|
||||
|
|
@ -394,6 +403,7 @@ static int enter_state(suspend_state_t state)
|
|||
if (suspend_test(TEST_FREEZER))
|
||||
goto Finish;
|
||||
|
||||
trace_suspend_resume(TPS("suspend_enter"), state, false);
|
||||
pr_debug("PM: Entering %s sleep\n", pm_states[state].label);
|
||||
pm_restrict_gfp_mask();
|
||||
error = suspend_devices_and_enter(state);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue