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| author | Shaohui Xie <b21989@freescale.com> | 2010-11-18 07:57:32 +0100 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-05-20 15:46:57 +0200 |
| commit | cce1f106c64dc1d19d5e9406320fde18dfc662df (patch) | |
| tree | 0fe38cf975577cb22de977ab36dc1cde82d80125 /arch/powerpc/kernel/traps.c | |
| parent | powerpc/fsl_lbc: Add workaround for ELBC-A001 erratum (diff) | |
| download | linux-cce1f106c64dc1d19d5e9406320fde18dfc662df.tar.xz linux-cce1f106c64dc1d19d5e9406320fde18dfc662df.zip | |
powerpc/fsl_rio: move machine_check handler
Add support for machine_check support into machine_check_e500 and
machine_check_e500mc.
Signed-off-by: Shaohui Xie <b21989@freescale.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Roy Zang <tie-fei.zang@freescale.com>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index b13306b0d925..0ff4ab98d50c 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -55,6 +55,7 @@ #endif #include <asm/kexec.h> #include <asm/ppc-opcode.h> +#include <asm/rio.h> #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC) int (*__debugger)(struct pt_regs *regs) __read_mostly; @@ -424,6 +425,12 @@ int machine_check_e500mc(struct pt_regs *regs) unsigned long reason = mcsr; int recoverable = 1; + if (reason & MCSR_BUS_RBERR) { + recoverable = fsl_rio_mcheck_exception(regs); + if (recoverable == 1) + goto silent_out; + } + printk("Machine check in kernel mode.\n"); printk("Caused by (from MCSR=%lx): ", reason); @@ -499,6 +506,7 @@ int machine_check_e500mc(struct pt_regs *regs) reason & MCSR_MEA ? "Effective" : "Physical", addr); } +silent_out: mtspr(SPRN_MCSR, mcsr); return mfspr(SPRN_MCSR) == 0 && recoverable; } @@ -507,6 +515,11 @@ int machine_check_e500(struct pt_regs *regs) { unsigned long reason = get_mc_reason(regs); + if (reason & MCSR_BUS_RBERR) { + if (fsl_rio_mcheck_exception(regs)) + return 1; + } + printk("Machine check in kernel mode.\n"); printk("Caused by (from MCSR=%lx): ", reason); |