diff options
Diffstat (limited to 'arch/arm/mm/proc-v6.S')
| -rw-r--r-- | arch/arm/mm/proc-v6.S | 49 |
1 files changed, 33 insertions, 16 deletions
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 22aac851519..59a7e1ffe7b 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -30,13 +30,10 @@ #define TTB_RGN_WT (2 << 3) #define TTB_RGN_WB (3 << 3) -#ifndef CONFIG_SMP -#define TTB_FLAGS TTB_RGN_WBWA -#define PMD_FLAGS PMD_SECT_WB -#else -#define TTB_FLAGS TTB_RGN_WBWA|TTB_S -#define PMD_FLAGS PMD_SECT_WBWA|PMD_SECT_S -#endif +#define TTB_FLAGS_UP TTB_RGN_WBWA +#define PMD_FLAGS_UP PMD_SECT_WB +#define TTB_FLAGS_SMP TTB_RGN_WBWA|TTB_S +#define PMD_FLAGS_SMP PMD_SECT_WBWA|PMD_SECT_S ENTRY(cpu_v6_proc_init) mov pc, lr @@ -97,7 +94,8 @@ ENTRY(cpu_v6_switch_mm) #ifdef CONFIG_MMU mov r2, #0 ldr r1, [r1, #MM_CONTEXT_ID] @ get mm->context.id - orr r0, r0, #TTB_FLAGS + ALT_SMP(orr r0, r0, #TTB_FLAGS_SMP) + ALT_UP(orr r0, r0, #TTB_FLAGS_UP) 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 @@ -137,7 +135,7 @@ cpu_pj4_name: .align - __INIT + __CPUINIT /* * __v6_setup @@ -156,9 +154,11 @@ cpu_pj4_name: */ __v6_setup: #ifdef CONFIG_SMP - mrc p15, 0, r0, c1, c0, 1 @ Enable SMP/nAMP mode + ALT_SMP(mrc p15, 0, r0, c1, c0, 1) @ Enable SMP/nAMP mode + ALT_UP(nop) orr r0, r0, #0x20 - mcr p15, 0, r0, c1, c0, 1 + ALT_SMP(mcr p15, 0, r0, c1, c0, 1) + ALT_UP(nop) #endif mov r0, #0 @@ -169,7 +169,8 @@ __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 - orr r4, r4, #TTB_FLAGS + ALT_SMP(orr r4, r4, #TTB_FLAGS_SMP) + ALT_UP(orr r4, r4, #TTB_FLAGS_UP) mcr p15, 0, r4, c2, c0, 1 @ load TTB1 #endif /* CONFIG_MMU */ adr r5, v6_crval @@ -192,6 +193,8 @@ __v6_setup: v6_crval: crval clear=0x01e0fb7f, mmuset=0x00c0387d, ucset=0x00c0187c + __INITDATA + .type v6_processor_functions, #object ENTRY(v6_processor_functions) .word v6_early_abort @@ -205,6 +208,8 @@ ENTRY(v6_processor_functions) .word cpu_v6_set_pte_ext .size v6_processor_functions, . - v6_processor_functions + .section ".rodata" + .type cpu_arch_name, #object cpu_arch_name: .asciz "armv6" @@ -225,10 +230,16 @@ cpu_elf_name: __v6_proc_info: .long 0x0007b000 .long 0x0007f000 - .long PMD_TYPE_SECT | \ + ALT_SMP(.long \ + PMD_TYPE_SECT | \ PMD_SECT_AP_WRITE | \ PMD_SECT_AP_READ | \ - PMD_FLAGS + PMD_FLAGS_SMP) + ALT_UP(.long \ + PMD_TYPE_SECT | \ + PMD_SECT_AP_WRITE | \ + PMD_SECT_AP_READ | \ + PMD_FLAGS_UP) .long PMD_TYPE_SECT | \ PMD_SECT_XN | \ PMD_SECT_AP_WRITE | \ @@ -249,10 +260,16 @@ __v6_proc_info: __pj4_v6_proc_info: .long 0x560f5810 .long 0xff0ffff0 - .long PMD_TYPE_SECT | \ + ALT_SMP(.long \ + PMD_TYPE_SECT | \ + PMD_SECT_AP_WRITE | \ + PMD_SECT_AP_READ | \ + PMD_FLAGS_SMP) + ALT_UP(.long \ + PMD_TYPE_SECT | \ PMD_SECT_AP_WRITE | \ PMD_SECT_AP_READ | \ - PMD_FLAGS + PMD_FLAGS_UP) .long PMD_TYPE_SECT | \ PMD_SECT_XN | \ PMD_SECT_AP_WRITE | \ |