From: Matthew McClintock <msm@freescale.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Matthew McClintock <msm@freescale.com>, kumar.gala@freescale.com
Subject: [PATCH 1/2] powerpc/mm: Assume first cpu is boot_cpuid not 0
Date: Tue, 31 Aug 2010 18:24:44 -0500 [thread overview]
Message-ID: <1283297085-3455-1-git-send-email-msm@freescale.com> (raw)
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>
---
arch/powerpc/mm/mmu_context_nohash.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 1f2d9ff..cf98c1e 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -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) {
@@ -412,9 +412,11 @@ 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
--
1.6.6.1
next reply other threads:[~2010-08-31 23:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-31 23:24 Matthew McClintock [this message]
2010-08-31 23:24 ` [PATCH 2/2] powerpc/fsl_booke: Add support to boot from core other than 0 Matthew McClintock
2010-10-07 6:10 ` Kumar Gala
2010-10-07 17:19 ` Kumar Gala
2010-09-01 13:05 ` [linuxppc-release] [PATCH 1/2] powerpc/mm: Assume first cpu is boot_cpuid not 0 Timur Tabi
2010-09-01 13:12 ` Kumar Gala
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