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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-11-11 16:02:43 +0000
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>2008-11-13 10:11:26 -0500
commit6612d9b0b8208c2ade3a16b8302a271ec81d45f6 (patch)
tree8c5ae9d31853b147fe90ac8df8e48ca215e38061 /arch/powerpc
parent5907630ffc2b2d133de2db18963ee5a6c5af7878 (diff)
powerpc/44x: Fix 460EX/460GT machine check handling
Those cores use the 440A type machine check (ie, they have MCSRR0/MCSRR1). They thus need to call the appropriate fixup function to hook the right variant of the exception. Without this, all machine checks become fatal due to loss of context when entering the exception handler. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/cpu_setup_44x.S7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_44x.S b/arch/powerpc/kernel/cpu_setup_44x.S
index 80cac984d85..31c18b52aff 100644
--- a/arch/powerpc/kernel/cpu_setup_44x.S
+++ b/arch/powerpc/kernel/cpu_setup_44x.S
@@ -34,7 +34,12 @@ _GLOBAL(__setup_cpu_440grx)
blr
_GLOBAL(__setup_cpu_460ex)
_GLOBAL(__setup_cpu_460gt)
- b __init_fpu_44x
+ mflr r4
+ bl __init_fpu_44x
+ bl __fixup_440A_mcheck
+ mtlr r4
+ blr
+
_GLOBAL(__setup_cpu_440gx)
_GLOBAL(__setup_cpu_440spe)
b __fixup_440A_mcheck