diff options
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/Kconfig | 9 | ||||
| -rw-r--r-- | kernel/power/hibernate.c | 12 | ||||
| -rw-r--r-- | kernel/power/snapshot.c | 5 | ||||
| -rw-r--r-- | kernel/power/suspend.c | 4 |
4 files changed, 20 insertions, 10 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index f8fe57d1022e..9bbaaab14b36 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -114,6 +114,15 @@ config PM_SLEEP_SMP depends on PM_SLEEP select HOTPLUG_CPU +config PM_SLEEP_SMP_NONZERO_CPU + def_bool y + depends on PM_SLEEP_SMP + depends on ARCH_SUSPEND_NONZERO_CPU + ---help--- + If an arch can suspend (for suspend, hibernate, kexec, etc) on a + non-zero numbered CPU, it may define ARCH_SUSPEND_NONZERO_CPU. This + will allow nohz_full mask to include CPU0. + config PM_AUTOSLEEP bool "Opportunistic sleep" depends on PM_SLEEP diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index cc105ecd9c07..c8c272df7154 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -280,7 +280,7 @@ 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; @@ -322,7 +322,7 @@ 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); @@ -416,7 +416,7 @@ int hibernation_snapshot(int platform_mode) int __weak hibernate_resume_nonboot_cpu_disable(void) { - return disable_nonboot_cpus(); + return suspend_disable_secondary_cpus(); } /** @@ -485,7 +485,7 @@ 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); @@ -563,7 +563,7 @@ int hibernation_platform_enter(void) if (error) goto Platform_finish; - error = disable_nonboot_cpus(); + error = suspend_disable_secondary_cpus(); if (error) goto Enable_cpus; @@ -585,7 +585,7 @@ 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/snapshot.c b/kernel/power/snapshot.c index f08a1e4ee1d4..bc9558ab1e5b 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -1342,8 +1342,9 @@ static inline void do_copy_page(long *dst, long *src) * safe_copy_page - Copy a page in a safe way. * * Check if the page we are going to copy is marked as present in the kernel - * page tables (this always is the case if CONFIG_DEBUG_PAGEALLOC is not set - * and in that case kernel_page_present() always returns 'true'). + * page tables. This always is the case if CONFIG_DEBUG_PAGEALLOC or + * CONFIG_ARCH_HAS_SET_DIRECT_MAP is not set. In that case kernel_page_present() + * always returns 'true'. */ static void safe_copy_page(void *dst, struct page *s_page) { diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index e39059dea38b..ef908c134b34 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -427,7 +427,7 @@ 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; @@ -457,7 +457,7 @@ 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); |