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| author | Olof Johansson <olof@lixom.net> | 2007-02-04 16:36:50 -0600 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-02-07 14:03:22 +1100 |
| commit | bfed9d32d968b2054a036d419537e9e9909bb343 (patch) | |
| tree | f0eadd35b463c0c1efc550138ef1f648a817839e | |
| parent | 39c870d5b503fa684198baf90bab2daa35ef0151 (diff) | |
| download | blackbird-op-linux-bfed9d32d968b2054a036d419537e9e9909bb343.tar.gz blackbird-op-linux-bfed9d32d968b2054a036d419537e9e9909bb343.zip | |
[POWERPC] pasemi: Machine check handler
Print out decoded machine check information on PA6T.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/powerpc/platforms/pasemi/setup.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c index 0505dd884ae2..4142873a87ef 100644 --- a/arch/powerpc/platforms/pasemi/setup.c +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -147,6 +147,48 @@ static void __init pas_progress(char *s, unsigned short hex) } +static int pas_machine_check_handler(struct pt_regs *regs) +{ + int cpu = smp_processor_id(); + unsigned long srr0, srr1, dsisr; + + srr0 = regs->nip; + srr1 = regs->msr; + dsisr = mfspr(SPRN_DSISR); + printk(KERN_ERR "Machine Check on CPU %d\n", cpu); + printk(KERN_ERR "SRR0 0x%016lx SRR1 0x%016lx\n", srr0, srr1); + printk(KERN_ERR "DSISR 0x%016lx DAR 0x%016lx\n", dsisr, regs->dar); + printk(KERN_ERR "Cause:\n"); + + if (srr1 & 0x200000) + printk(KERN_ERR "Signalled by SDC\n"); + if (srr1 & 0x100000) { + printk(KERN_ERR "Load/Store detected error:\n"); + if (dsisr & 0x8000) + printk(KERN_ERR "D-cache ECC double-bit error or bus error\n"); + if (dsisr & 0x4000) + printk(KERN_ERR "LSU snoop response error\n"); + if (dsisr & 0x2000) + printk(KERN_ERR "MMU SLB multi-hit or invalid B field\n"); + if (dsisr & 0x1000) + printk(KERN_ERR "Recoverable Duptags\n"); + if (dsisr & 0x800) + printk(KERN_ERR "Recoverable D-cache parity error count overflow\n"); + if (dsisr & 0x400) + printk(KERN_ERR "TLB parity error count overflow\n"); + } + if (srr1 & 0x80000) + printk(KERN_ERR "Bus Error\n"); + if (srr1 & 0x40000) + printk(KERN_ERR "I-side SLB multiple hit\n"); + if (srr1 & 0x20000) + printk(KERN_ERR "I-cache parity error hit\n"); + + /* SRR1[62] is from MSR[62] if recoverable, so pass that back */ + return !!(srr1 & 0x2); +} + + /* * Called very early, MMU is off, device-tree isn't unflattened */ @@ -175,4 +217,5 @@ define_machine(pas) { .calibrate_decr = generic_calibrate_decr, .check_legacy_ioport = pas_check_legacy_ioport, .progress = pas_progress, + .machine_check_exception = pas_machine_check_handler, }; |
