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[POWERPC] Reworking machine check handling and Fix 440/440A

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This adds a cputable function pointer for the CPU-side machine
check handling. The semantic is still the same as the old one,
the one in ppc_md. overrides the one in cputable, though
ultimately we'll want to change that so the CPU gets first.

This removes CONFIG_440A which was a problem for multiplatform
kernels and instead fixes up the IVOR at runtime from a setup_cpu
function. The "A" version of the machine check also tweaks the
regs->trap value to differenciate the 2 versions at the C level.

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
2007-12-21 15:39:21 +11:00
committed by Josh Boyer
parent c2a7dcad9f
commit 47c0bd1ae2
11 changed files with 258 additions and 58 deletions
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include/asm-ppc/reg_booke.h
+1 -1
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@@ -207,7 +207,7 @@
#define CCR1_TCS 0x00000080 /* Timer Clock Select */
/* Bit definitions for the MCSR. */
#ifdef CONFIG_440A
#ifdef CONFIG_4xx
#define MCSR_MCS 0x80000000 /* Machine Check Summary */
#define MCSR_IB 0x40000000 /* Instruction PLB Error */
#define MCSR_DRB 0x20000000 /* Data Read PLB Error */