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powerpc/mm: Assume first cpu is boot_cpuid not 0 

arch/powerpc/mm/mmu_context_nohash.c assumes the boot cpu
will always have smp_processor_id() == 0. This patch fixes
that assumption

Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
hifive-unleashed-5.1
Matthew McClintock 2010-08-31 13:24:44 +00:00 committed by Benjamin Herrenschmidt
parent 86250b9d12
commit 0d35e1620d
1 changed files with 4 additions and 2 deletions
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6
arch/powerpc/mm/mmu_context_nohash.c
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@ -334,7 +334,7 @@ static int __cpuinit mmu_context_cpu_notify(struct notifier_block *self,
/* We don't touch CPU 0 map, it's allocated at aboot and kept
* around forever
*/
if (cpu == 0)
if (cpu == boot_cpuid)
return NOTIFY_OK;
switch (action) {
@ -420,9 +420,11 @@ void __init mmu_context_init(void)
*/
context_map = alloc_bootmem(CTX_MAP_SIZE);
context_mm = alloc_bootmem(sizeof(void *) * (last_context + 1));
#ifndef CONFIG_SMP
stale_map[0] = alloc_bootmem(CTX_MAP_SIZE);
#else
stale_map[boot_cpuid] = alloc_bootmem(CTX_MAP_SIZE);
#ifdef CONFIG_SMP
register_cpu_notifier(&mmu_context_cpu_nb);
#endif