diff options
| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2011-09-01 11:52:33 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-09-20 23:33:44 +0100 |
| commit | abda1bd5f4e04054ce083c298fcd68a743e9df03 (patch) | |
| tree | bdbc41f348d17a6cdb7259a0604d3f501801f3b6 /arch/arm/include/asm/proc-fns.h | |
| parent | ARM: pm: get rid of cpu_resume_turn_mmu_on (diff) | |
| download | linux-dev-abda1bd5f4e04054ce083c298fcd68a743e9df03.tar.xz linux-dev-abda1bd5f4e04054ce083c298fcd68a743e9df03.zip | |
ARM: pm: convert some assembly to C
Convert some of the sleep.S guts to C code, which makes it easier to
use our macros and to add L2 cache handling. We provide a helper
function, __cpu_suspend_save(), which deals with saving the common
state, setting up for resume, and flushing caches.
The remainder left as assembly code is the saving of the CPU general
purpose registers, and allocating space on the stack to save the CPU
specific registers and resume state.
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/proc-fns.h')
| -rw-r--r-- | arch/arm/include/asm/proc-fns.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h index 633d1cb84d87..9e92cb205e65 100644 --- a/arch/arm/include/asm/proc-fns.h +++ b/arch/arm/include/asm/proc-fns.h @@ -81,6 +81,10 @@ extern void cpu_dcache_clean_area(void *, int); extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm); extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext); extern void cpu_reset(unsigned long addr) __attribute__((noreturn)); + +/* These three are private to arch/arm/kernel/suspend.c */ +extern void cpu_do_suspend(void *); +extern void cpu_do_resume(void *); #else #define cpu_proc_init processor._proc_init #define cpu_proc_fin processor._proc_fin @@ -89,6 +93,10 @@ extern void cpu_reset(unsigned long addr) __attribute__((noreturn)); #define cpu_dcache_clean_area processor.dcache_clean_area #define cpu_set_pte_ext processor.set_pte_ext #define cpu_do_switch_mm processor.switch_mm + +/* These three are private to arch/arm/kernel/suspend.c */ +#define cpu_do_suspend processor.do_suspend +#define cpu_do_resume processor.do_resume #endif extern void cpu_resume(void); |