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| author |   Qais Yousef <qais.yousef@arm.com> | 2020-03-23 13:51:01 +0000 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2020-03-25 12:59:34 +0100 |
| commit | d720f98604391dab6aa3cb4c1bc005ed1aba4703 (patch) | |
| tree | 4aa30be79a98f962c38b731a507add852860d9db /include/linux/cpu.h | |
| parent | arm64: Use reboot_cpu instead of hardconding it to 0 (diff) | |
| download | wireguard-linux-d720f98604391dab6aa3cb4c1bc005ed1aba4703.tar.xz wireguard-linux-d720f98604391dab6aa3cb4c1bc005ed1aba4703.zip | |
cpu/hotplug: Provide bringup_hibernate_cpu()
arm64 uses cpu_up() in the resume from hibernation code to ensure that the
CPU on which the system hibernated is online. Provide a core function for
this.
[ tglx: Split out from the combo arm64 patch ]
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200323135110.30522-9-qais.yousef@arm.com
Diffstat (limited to 'include/linux/cpu.h')
| -rw-r--r-- | include/linux/cpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 64a246e9c8db..9dc1e892e193 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -93,6 +93,7 @@ int add_cpu(unsigned int cpu); void notify_cpu_starting(unsigned int cpu); extern void cpu_maps_update_begin(void); extern void cpu_maps_update_done(void); +int bringup_hibernate_cpu(unsigned int sleep_cpu); #else /* CONFIG_SMP */ #define cpuhp_tasks_frozen 0 |