diff options
| -rw-r--r-- | arch/powerpc/include/asm/cputable.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 36 |
3 files changed, 27 insertions, 11 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index f752e6f7cfbe..ab68d0ee7725 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -43,6 +43,7 @@ extern int machine_check_e500mc(struct pt_regs *regs); extern int machine_check_e500(struct pt_regs *regs); extern int machine_check_e200(struct pt_regs *regs); extern int machine_check_47x(struct pt_regs *regs); +int machine_check_8xx(struct pt_regs *regs); extern void cpu_down_flush_e500v2(void); extern void cpu_down_flush_e500mc(void); diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 6c4646ac9234..6a82ef039c50 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -1248,6 +1248,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .mmu_features = MMU_FTR_TYPE_8xx, .icache_bsize = 16, .dcache_bsize = 16, + .machine_check = machine_check_8xx, .platform = "ppc823", }, #endif /* CONFIG_8xx */ diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 137b1371cce8..e493062937b0 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -667,6 +667,31 @@ int machine_check_e200(struct pt_regs *regs) return 0; } +#elif defined(CONFIG_PPC_8xx) +int machine_check_8xx(struct pt_regs *regs) +{ + unsigned long reason = get_mc_reason(regs); + + pr_err("Machine check in kernel mode.\n"); + pr_err("Caused by (from SRR1=%lx): ", reason); + if (reason & 0x40000000) + pr_err("Fetch error at address %lx\n", regs->nip); + else + pr_err("Data access error at address %lx\n", regs->dar); + +#ifdef CONFIG_PCI + /* the qspan pci read routines can cause machine checks -- Cort + * + * yuck !!! that totally needs to go away ! There are better ways + * to deal with that than having a wart in the mcheck handler. + * -- BenH + */ + bad_page_fault(regs, regs->dar, SIGBUS); + return 1; +#else + return 0; +#endif +} #else int machine_check_generic(struct pt_regs *regs) { @@ -726,17 +751,6 @@ void machine_check_exception(struct pt_regs *regs) if (recover > 0) goto bail; -#if defined(CONFIG_8xx) && defined(CONFIG_PCI) - /* the qspan pci read routines can cause machine checks -- Cort - * - * yuck !!! that totally needs to go away ! There are better ways - * to deal with that than having a wart in the mcheck handler. - * -- BenH - */ - bad_page_fault(regs, regs->dar, SIGBUS); - goto bail; -#endif - if (debugger_fault_handler(regs)) goto bail; |