diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/irqflags.h | 10 | ||||
| -rw-r--r-- | arch/arm/kernel/smp.c | 1 | ||||
| -rw-r--r-- | arch/arm/mm/mmu.c | 3 |
3 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/include/asm/irqflags.h b/arch/arm/include/asm/irqflags.h index 43908146a5cf..e6b70d9d084e 100644 --- a/arch/arm/include/asm/irqflags.h +++ b/arch/arm/include/asm/irqflags.h @@ -54,6 +54,14 @@ static inline void arch_local_irq_disable(void) #define local_fiq_enable() __asm__("cpsie f @ __stf" : : : "memory", "cc") #define local_fiq_disable() __asm__("cpsid f @ __clf" : : : "memory", "cc") + +#ifndef CONFIG_CPU_V7M +#define local_abt_enable() __asm__("cpsie a @ __sta" : : : "memory", "cc") +#define local_abt_disable() __asm__("cpsid a @ __cla" : : : "memory", "cc") +#else +#define local_abt_enable() do { } while (0) +#define local_abt_disable() do { } while (0) +#endif #else /* @@ -136,6 +144,8 @@ static inline void arch_local_irq_disable(void) : "memory", "cc"); \ }) +#define local_abt_enable() do { } while (0) +#define local_abt_disable() do { } while (0) #endif /* diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 48185a773852..36045e8ced01 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -400,6 +400,7 @@ asmlinkage void secondary_start_kernel(void) local_irq_enable(); local_fiq_enable(); + local_abt_enable(); /* * OK, it's off to the idle thread for us diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 7cd15143a507..f65a6f344b6d 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -1363,6 +1363,9 @@ static void __init devicemaps_init(const struct machine_desc *mdesc) */ local_flush_tlb_all(); flush_cache_all(); + + /* Enable asynchronous aborts */ + local_abt_enable(); } static void __init kmap_init(void) |