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authorStephen Rothwell <sfr@canb.auug.org.au>2006-04-05 10:41:21 +1000
committerGreg Kroah-Hartman <gregkh@suse.de>2006-04-17 13:16:03 -0700
commitbce29a817a973634535f92aa217152177e82c3bd (patch)
parenta7603f9099869f9aeebd6c72a4ffbc792868ff3a (diff)
[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: Greg Kroah-Hartman <gregkh@suse.de>
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index f96c49b03ba0..abd758f23147 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -256,12 +256,10 @@ 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(lpaca->stab_real);
- }
+ if (cpu_has_feature(CPU_FTR_SLB))
+ slb_initialize();
+ else if (!firmware_has_feature(FW_FEATURE_ISERIES))
+ stab_initialize(lpaca->stab_real);
DBG(" <- early_setup()\n");