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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

             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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