diff options
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/proc-fns.h | 3 | ||||
| -rw-r--r-- | arch/arm64/include/asm/suspend.h | 18 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/proc-fns.h b/arch/arm64/include/asm/proc-fns.h index 7cdf466fd0c5..0c657bb54597 100644 --- a/arch/arm64/include/asm/proc-fns.h +++ b/arch/arm64/include/asm/proc-fns.h @@ -26,11 +26,14 @@ #include <asm/page.h> struct mm_struct; +struct cpu_suspend_ctx; extern void cpu_cache_off(void); extern void cpu_do_idle(void); extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm); extern void cpu_reset(unsigned long addr) __attribute__((noreturn)); +extern void cpu_do_suspend(struct cpu_suspend_ctx *ptr); +extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr); #include <asm/memory.h> diff --git a/arch/arm64/include/asm/suspend.h b/arch/arm64/include/asm/suspend.h new file mode 100644 index 000000000000..a88558e223da --- /dev/null +++ b/arch/arm64/include/asm/suspend.h @@ -0,0 +1,18 @@ +#ifndef __ASM_SUSPEND_H +#define __ASM_SUSPEND_H + +#define NR_CTX_REGS 11 + +/* + * struct cpu_suspend_ctx must be 16-byte aligned since it is allocated on + * the stack, which must be 16-byte aligned on v8 + */ +struct cpu_suspend_ctx { + /* + * This struct must be kept in sync with + * cpu_do_{suspend/resume} in mm/proc.S + */ + u64 ctx_regs[NR_CTX_REGS]; + u64 sp; +} __aligned(16); +#endif |