diff options
| author | James Morse <james.morse@arm.com> | 2016-04-27 17:47:06 +0100 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-11-10 15:50:16 +0800 |
| commit | be5d6aa0cc805bb6f7bc936042620f5826322009 (patch) | |
| tree | d9be10e74139b9c29f1b1fb913993e06074205a1 /arch/arm64/kernel/asm-offsets.c | |
| parent | 46f269e394b70c332389818cb378a84f27026f24 (diff) | |
arm64: kernel: Rework finisher callback out of __cpu_suspend_enter()
Hibernate could make use of the cpu_suspend() code to save/restore cpu
state, however it needs to be able to return '0' from the 'finisher'.
Rework cpu_suspend() so that the finisher is called from C code,
independently from the save/restore of cpu state. Space to save the context
in is allocated in the caller's stack frame, and passed into
__cpu_suspend_enter().
Hibernate's use of this API will look like a copy of the cpu_suspend()
function.
Signed-off-by: James Morse <james.morse@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from commit adc9b2dfd00924e9e9b98613f36a6cb8c51f0dc6)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'arch/arm64/kernel/asm-offsets.c')
| -rw-r--r-- | arch/arm64/kernel/asm-offsets.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c index 66ce4fdd4644..2abd57fd4255 100644 --- a/arch/arm64/kernel/asm-offsets.c +++ b/arch/arm64/kernel/asm-offsets.c @@ -135,6 +135,8 @@ int main(void) DEFINE(SLEEP_SAVE_SP_SZ, sizeof(struct sleep_save_sp)); DEFINE(SLEEP_SAVE_SP_PHYS, offsetof(struct sleep_save_sp, save_ptr_stash_phys)); DEFINE(SLEEP_SAVE_SP_VIRT, offsetof(struct sleep_save_sp, save_ptr_stash)); + DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS, offsetof(struct sleep_stack_data, system_regs)); + DEFINE(SLEEP_STACK_DATA_CALLEE_REGS, offsetof(struct sleep_stack_data, callee_saved_regs)); #endif DEFINE(ARM_SMCCC_RES_X0_OFFS, offsetof(struct arm_smccc_res, a0)); DEFINE(ARM_SMCCC_RES_X2_OFFS, offsetof(struct arm_smccc_res, a2)); |