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authorStephen Rothwell <sfr@canb.auug.org.au>2006-04-01 16:45:04 (GMT)
committerPaul Mackerras <paulus@samba.org>2006-04-01 23:32:15 (GMT)
commit856d08ec46c5ecf3df13827c492fb6998fdc8322 (patch)
tree24d64c8000c80da137167a08dfb42de5759c2cc0 /arch/powerpc
parent2c6967750a6f1e206a44ab5cf43c36aacb91372b (diff)
downloadlinux-856d08ec46c5ecf3df13827c492fb6998fdc8322.tar.xz
[PATCH] powerpc: iSeries needs slb_initialize to be called
Since the powerpc 64k pages patch went in, systems that have SLBs (like Power4 iSeries) needed to have slb_initialize called to set up some variables for the SLB miss handler. This was not being called on the boot processor on iSeries, so on single cpu iSeries machines, we would get apparent memory curruption as soon as we entered user mode. This patch fixes that by calling slb_initialize on the boot cpu if the processor has an SLB. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/setup_64.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 59aa92c..13e91c4 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -215,12 +215,10 @@ void __init early_setup(unsigned long dt_ptr)
/*
* Initialize stab / SLB management except on iSeries
*/
- if (!firmware_has_feature(FW_FEATURE_ISERIES)) {
- if (cpu_has_feature(CPU_FTR_SLB))
- slb_initialize();
- else
- stab_initialize(get_paca()->stab_real);
- }
+ if (cpu_has_feature(CPU_FTR_SLB))
+ slb_initialize();
+ else if (!firmware_has_feature(FW_FEATURE_ISERIES))
+ stab_initialize(get_paca()->stab_real);
DBG(" <- early_setup()\n");
}