diff options
| author |   Nicholas Piggin <npiggin@gmail.com> | 2019-04-11 13:34:45 +1000 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2019-05-03 19:42:41 +0200 |
| commit | 2f1a6fbbef7781382850c3104ecb658f21b5d460 (patch) | |
| tree | 5d6156deb3c41a176c3c8bca4abfc49d7953ab75 /kernel/power | |
| parent | sched/core: Allow the remote scheduler tick to be started on CPU0 (diff) | |
| download | linux-dev-2f1a6fbbef7781382850c3104ecb658f21b5d460.tar.xz linux-dev-2f1a6fbbef7781382850c3104ecb658f21b5d460.zip | |
power/suspend: Add function to disable secondaries for suspend
This adds a function to disable secondary CPUs for suspend that are
not necessarily non-zero / non-boot CPUs. Platforms will be able to
use this to suspend using non-zero CPUs.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lkml.kernel.org/r/20190411033448.20842-3-npiggin@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/hibernate.c | 12 | ||||
| -rw-r--r-- | kernel/power/suspend.c | 4 |
2 files changed, 8 insertions, 8 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index abef759de7c8..cfc7a57049e4 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -281,7 +281,7 @@ static int create_image(int platform_mode) if (error || hibernation_test(TEST_PLATFORM)) goto Platform_finish; - error = disable_nonboot_cpus(); + error = suspend_disable_secondary_cpus(); if (error || hibernation_test(TEST_CPUS)) goto Enable_cpus; @@ -323,7 +323,7 @@ static int create_image(int platform_mode) local_irq_enable(); Enable_cpus: - enable_nonboot_cpus(); + suspend_enable_secondary_cpus(); Platform_finish: platform_finish(platform_mode); @@ -417,7 +417,7 @@ int hibernation_snapshot(int platform_mode) int __weak hibernate_resume_nonboot_cpu_disable(void) { - return disable_nonboot_cpus(); + return suspend_disable_secondary_cpus(); } /** @@ -486,7 +486,7 @@ static int resume_target_kernel(bool platform_mode) local_irq_enable(); Enable_cpus: - enable_nonboot_cpus(); + suspend_enable_secondary_cpus(); Cleanup: platform_restore_cleanup(platform_mode); @@ -564,7 +564,7 @@ int hibernation_platform_enter(void) if (error) goto Platform_finish; - error = disable_nonboot_cpus(); + error = suspend_disable_secondary_cpus(); if (error) goto Enable_cpus; @@ -586,7 +586,7 @@ int hibernation_platform_enter(void) local_irq_enable(); Enable_cpus: - enable_nonboot_cpus(); + suspend_enable_secondary_cpus(); Platform_finish: hibernation_ops->finish(); diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 0bd595a0b610..59b6def23046 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -428,7 +428,7 @@ static int suspend_enter(suspend_state_t state, bool *wakeup) if (suspend_test(TEST_PLATFORM)) goto Platform_wake; - error = disable_nonboot_cpus(); + error = suspend_disable_secondary_cpus(); if (error || suspend_test(TEST_CPUS)) goto Enable_cpus; @@ -458,7 +458,7 @@ static int suspend_enter(suspend_state_t state, bool *wakeup) BUG_ON(irqs_disabled()); Enable_cpus: - enable_nonboot_cpus(); + suspend_enable_secondary_cpus(); Platform_wake: platform_resume_noirq(state); |