[ARM] 4129/1: Add barriers after the TLB operations

[linux-2.6-omap-h63xx.git] / arch / arm / mm / tlb-v6.S

diff --git a/arch/arm/mm/tlb-v6.S b/arch/arm/mm/tlb-v6.S
index fd6adde39091ef28cadf0d4fa273d8376fbbe707..20f84bbaa9bbc7c1f5cfe1fbadf532c8f10947d1 100644 (file)
--- a/arch/arm/mm/tlb-v6.S
+++ b/arch/arm/mm/tlb-v6.S
@@ -53,6 +53,8 @@ ENTRY(v6wbi_flush_user_tlb_range)
        add     r0, r0, #PAGE_SZ
        cmp     r0, r1
        blo     1b
+       mcr     p15, 0, ip, c7, c5, 6           @ flush BTAC/BTB
+       mcr     p15, 0, ip, c7, c10, 4          @ data synchronization barrier
        mov     pc, lr
 
 /*
@@ -80,7 +82,9 @@ ENTRY(v6wbi_flush_kern_tlb_range)
        add     r0, r0, #PAGE_SZ
        cmp     r0, r1
        blo     1b
+       mcr     p15, 0, r2, c7, c5, 6           @ flush BTAC/BTB
        mcr     p15, 0, r2, c7, c10, 4          @ data synchronization barrier
+       mcr     p15, 0, r2, c7, c5, 4           @ prefetch flush
        mov     pc, lr
 
        .section ".text.init", #alloc, #execinstr