ARM: pm: add generic CPU suspend/resume support
This adds core support for saving and restoring CPU coprocessor
registers for suspend/resume support. This contains support for suspend
with ARM920, ARM926, SA11x0, PXA25x, PXA27x, PXA3xx, V6 and V7 CPUs.
Tested on Assabet and Tegra 2.
Tested-by: Colin Cross <ccross@android.com>
Tested-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h
index 6980215..8ec535e 100644
--- a/arch/arm/include/asm/proc-fns.h
+++ b/arch/arm/include/asm/proc-fns.h
@@ -66,6 +66,11 @@
* ignore 'ext'.
*/
void (*set_pte_ext)(pte_t *ptep, pte_t pte, unsigned int ext);
+
+ /* Suspend/resume */
+ unsigned int suspend_size;
+ void (*do_suspend)(void *);
+ void (*do_resume)(void *);
} processor;
#ifndef MULTI_CPU
@@ -86,6 +91,8 @@
#define cpu_do_switch_mm(pgd,mm) processor.switch_mm(pgd,mm)
#endif
+extern void cpu_resume(void);
+
#include <asm/memory.h>
#ifdef CONFIG_MMU