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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-06-19 18:39:33 +0100 |
|---|---|---|
| committer | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-06-19 18:39:33 +0100 |
| commit | 36c5ed23b9f535d1c79986efb45f9c1f115e0997 (patch) | |
| tree | 5a493a7b19b02a8c7ccadafc5a3f55ca9da6605e | |
| parent | 3aa3dfb372576f30835a94409556e3c8681b5756 (diff) | |
| download | linux-36c5ed23b9f535d1c79986efb45f9c1f115e0997.tar.gz linux-36c5ed23b9f535d1c79986efb45f9c1f115e0997.tar.bz2 linux-36c5ed23b9f535d1c79986efb45f9c1f115e0997.zip | |
[PATCH] ARM SMP: Fix PXA/SA11x0 suspend resume crash
We need to re-initialise the stack pointers for undefined, IRQ
and abort mode handlers whenever we resume.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/kernel/setup.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/pm.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-sa1100/pm.c | 2 | ||||
| -rw-r--r-- | include/asm-arm/system.h | 1 |
4 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 7ecdda3f1253..9fed5fa194d9 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -328,7 +328,7 @@ static void __init setup_processor(void) * cpu_init dumps the cache information, initialises SMP specific * information, and sets up the per-CPU stacks. */ -void __init cpu_init(void) +void cpu_init(void) { unsigned int cpu = smp_processor_id(); struct stack *stk = &stacks[cpu]; diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c index 9799fe80df23..ac4dd4336160 100644 --- a/arch/arm/mach-pxa/pm.c +++ b/arch/arm/mach-pxa/pm.c @@ -133,6 +133,8 @@ static int pxa_pm_enter(suspend_state_t state) /* *** go zzz *** */ pxa_cpu_pm_enter(state); + cpu_init(); + /* after sleeping, validate the checksum */ checksum = 0; for (i = 0; i < SLEEP_SAVE_SIZE - 1; i++) diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c index 379ea5e3950f..59c7964cfe11 100644 --- a/arch/arm/mach-sa1100/pm.c +++ b/arch/arm/mach-sa1100/pm.c @@ -88,6 +88,8 @@ static int sa11x0_pm_enter(suspend_state_t state) /* go zzz */ sa1100_cpu_suspend(); + cpu_init(); + /* * Ensure not to come back here if it wasn't intended */ diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h index b13a8da4847b..8405eb6558ed 100644 --- a/include/asm-arm/system.h +++ b/include/asm-arm/system.h @@ -104,6 +104,7 @@ extern void show_pte(struct mm_struct *mm, unsigned long addr); extern void __show_regs(struct pt_regs *); extern int cpu_architecture(void); +extern void cpu_init(void); #define set_cr(x) \ __asm__ __volatile__( \ |