diff options
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/cacheflush.h | 7 | ||||
| -rw-r--r-- | include/asm-arm/mmu_context.h | 5 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-arm/cacheflush.h b/include/asm-arm/cacheflush.h index 759a97b56ee..559fb4af1f6 100644 --- a/include/asm-arm/cacheflush.h +++ b/include/asm-arm/cacheflush.h @@ -410,6 +410,13 @@ extern void flush_dcache_page(struct page *); extern void __flush_dcache_page(struct address_space *mapping, struct page *page); +static inline void __flush_icache_all(void) +{ + asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n" + : + : "r" (0)); +} + #define ARCH_HAS_FLUSH_ANON_PAGE static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr) diff --git a/include/asm-arm/mmu_context.h b/include/asm-arm/mmu_context.h index 6913d02ca5d..91b9dfdfed5 100644 --- a/include/asm-arm/mmu_context.h +++ b/include/asm-arm/mmu_context.h @@ -97,6 +97,11 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next, #ifdef CONFIG_MMU unsigned int cpu = smp_processor_id(); +#ifdef CONFIG_SMP + /* check for possible thread migration */ + if (!cpus_empty(next->cpu_vm_mask) && !cpu_isset(cpu, next->cpu_vm_mask)) + __flush_icache_all(); +#endif if (!cpu_test_and_set(cpu, next->cpu_vm_mask) || prev != next) { check_context(next); cpu_switch_mm(next->pgd, next); |