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powerpc/44x: Fix 460EX/460GT machine check handling

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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>
This commit is contained in:
Benjamin Herrenschmidt 2008-11-11 16:02:43 +00:00 committed by Josh Boyer
parent 5907630ffc
commit 6612d9b0b8
1 changed files with 6 additions and 1 deletions
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7
arch/powerpc/kernel/cpu_setup_44x.S
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@ -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