diff options
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/proc-v6.S | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 7b1843befb9c..d78c0ae7c2c2 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -30,6 +30,12 @@ #define TTB_RGN_WT (2 << 3) #define TTB_RGN_WB (3 << 3) +#ifndef CONFIG_SMP +#define TTB_FLAGS TTB_RGN_WBWA +#else +#define TTB_FLAGS TTB_RGN_WBWA|TTB_S +#endif + ENTRY(cpu_v6_proc_init) mov pc, lr @@ -92,9 +98,7 @@ ENTRY(cpu_v6_switch_mm) #ifdef CONFIG_MMU mov r2, #0 ldr r1, [r1, #MM_CONTEXT_ID] @ get mm->context.id -#ifdef CONFIG_SMP - orr r0, r0, #TTB_RGN_WBWA|TTB_S @ mark PTWs shared, outer cacheable -#endif + orr r0, r0, #TTB_FLAGS mcr p15, 0, r2, c7, c5, 6 @ flush BTAC/BTB mcr p15, 0, r2, c7, c10, 4 @ drain write buffer mcr p15, 0, r0, c2, c0, 0 @ set TTB 0 @@ -204,9 +208,7 @@ __v6_setup: #ifdef CONFIG_MMU mcr p15, 0, r0, c8, c7, 0 @ invalidate I + D TLBs mcr p15, 0, r0, c2, c0, 2 @ TTB control register -#ifdef CONFIG_SMP - orr r4, r4, #TTB_RGN_WBWA|TTB_S @ mark PTWs shared, outer cacheable -#endif + orr r4, r4, #TTB_FLAGS mcr p15, 0, r4, c2, c0, 1 @ load TTB1 #endif /* CONFIG_MMU */ adr r5, v6_crval |