diff options
| author | Mike Travis <travis@sgi.com> | 2009-01-01 02:34:16 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-03 18:53:31 +0100 |
| commit | 7eb19553369c46cc1fa64caf120cbcab1b597f7c (patch) | |
| tree | ef1a3beae706b9497c845d0a2557ceb4d2754998 /arch/arm/mm/proc-v7.S | |
| parent | x86: mark get_cpu_leaves() with __cpuinit annotation (diff) | |
| parent | cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS (diff) | |
| download | linux-7eb19553369c46cc1fa64caf120cbcab1b597f7c.tar.xz linux-7eb19553369c46cc1fa64caf120cbcab1b597f7c.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask
Conflicts:
arch/x86/kernel/io_apic.c
kernel/rcuclassic.c
kernel/sched.c
kernel/time/tick-sched.c
Signed-off-by: Mike Travis <travis@sgi.com>
[ mingo@elte.hu: backmerged typo fix for io_apic.c ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mm/proc-v7.S')
| -rw-r--r-- | arch/arm/mm/proc-v7.S | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 4d3c0a73e7fb..d1ebec42521d 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -20,9 +20,17 @@ #define TTB_C (1 << 0) #define TTB_S (1 << 1) +#define TTB_RGN_NC (0 << 3) +#define TTB_RGN_OC_WBWA (1 << 3) #define TTB_RGN_OC_WT (2 << 3) #define TTB_RGN_OC_WB (3 << 3) +#ifndef CONFIG_SMP +#define TTB_FLAGS TTB_C|TTB_RGN_OC_WB @ mark PTWs cacheable, outer WB +#else +#define TTB_FLAGS TTB_C|TTB_S|TTB_RGN_OC_WBWA @ mark PTWs cacheable and shared, outer WBWA +#endif + ENTRY(cpu_v7_proc_init) mov pc, lr ENDPROC(cpu_v7_proc_init) @@ -55,6 +63,7 @@ ENDPROC(cpu_v7_reset) * IRQs are already disabled. */ ENTRY(cpu_v7_do_idle) + dsb @ WFI may enter a low-power mode wfi mov pc, lr ENDPROC(cpu_v7_do_idle) @@ -85,7 +94,7 @@ ENTRY(cpu_v7_switch_mm) #ifdef CONFIG_MMU mov r2, #0 ldr r1, [r1, #MM_CONTEXT_ID] @ get mm->context.id - orr r0, r0, #TTB_RGN_OC_WB @ mark PTWs outer cacheable, WB + orr r0, r0, #TTB_FLAGS mcr p15, 0, r2, c13, c0, 1 @ set reserved context ID isb 1: mcr p15, 0, r0, c2, c0, 0 @ set TTB 0 @@ -162,6 +171,11 @@ cpu_v7_name: * - cache type register is implemented */ __v7_setup: +#ifdef CONFIG_SMP + mrc p15, 0, r0, c1, c0, 1 @ Enable SMP/nAMP mode + orr r0, r0, #(0x1 << 6) + mcr p15, 0, r0, c1, c0, 1 +#endif adr r12, __v7_setup_stack @ the local stack stmia r12, {r0-r5, r7, r9, r11, lr} bl v7_flush_dcache_all @@ -174,8 +188,7 @@ __v7_setup: #ifdef CONFIG_MMU mcr p15, 0, r10, c8, c7, 0 @ invalidate I + D TLBs mcr p15, 0, r10, c2, c0, 2 @ TTB control register - orr r4, r4, #TTB_RGN_OC_WB @ mark PTWs outer cacheable, WB - mcr p15, 0, r4, c2, c0, 0 @ load TTB0 + orr r4, r4, #TTB_FLAGS mcr p15, 0, r4, c2, c0, 1 @ load TTB1 mov r10, #0x1f @ domains 0, 1 = manager mcr p15, 0, r10, c3, c0, 0 @ load domain access register |