diff options
Diffstat (limited to 'include/asm-arm/tlbflush.h')
-rw-r--r-- | include/asm-arm/tlbflush.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-arm/tlbflush.h b/include/asm-arm/tlbflush.h index 9387a5e1ffe0..0c2acc944a0a 100644 --- a/include/asm-arm/tlbflush.h +++ b/include/asm-arm/tlbflush.h | |||
@@ -340,6 +340,12 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr) | |||
340 | asm("mcr%? p15, 0, %0, c8, c6, 1" : : "r" (kaddr)); | 340 | asm("mcr%? p15, 0, %0, c8, c6, 1" : : "r" (kaddr)); |
341 | if (tlb_flag(TLB_V6_I_PAGE)) | 341 | if (tlb_flag(TLB_V6_I_PAGE)) |
342 | asm("mcr%? p15, 0, %0, c8, c5, 1" : : "r" (kaddr)); | 342 | asm("mcr%? p15, 0, %0, c8, c5, 1" : : "r" (kaddr)); |
343 | |||
344 | /* The ARM ARM states that the completion of a TLB maintenance | ||
345 | * operation is only guaranteed by a DSB instruction | ||
346 | */ | ||
347 | if (tlb_flag(TLB_V6_U_PAGE | TLB_V6_D_PAGE | TLB_V6_I_PAGE)) | ||
348 | asm("mcr%? p15, 0, %0, c7, c10, 4" : : "r" (zero)); | ||
343 | } | 349 | } |
344 | 350 | ||
345 | /* | 351 | /* |