diff options
Diffstat (limited to 'arch/ppc/kernel/traps.c')
| -rw-r--r-- | arch/ppc/kernel/traps.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c index 16adde6b429..42d980e82bd 100644 --- a/arch/ppc/kernel/traps.c +++ b/arch/ppc/kernel/traps.c @@ -159,7 +159,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr) */ static inline int check_io_access(struct pt_regs *regs) { -#ifdef CONFIG_PPC_PMAC +#if defined CONFIG_PPC_PMAC || defined CONFIG_8xx unsigned long msr = regs->msr; const struct exception_table_entry *entry; unsigned int *nip = (unsigned int *)regs->nip; @@ -178,7 +178,11 @@ static inline int check_io_access(struct pt_regs *regs) nip -= 2; else if (*nip == 0x4c00012c) /* isync */ --nip; - if (*nip == 0x7c0004ac || (*nip >> 26) == 3) { + /* eieio from I/O string functions */ + else if ((*nip) == 0x7c0006ac || *(nip+1) == 0x7c0006ac) + nip += 2; + if (*nip == 0x7c0004ac || (*nip >> 26) == 3 || + (*(nip+1) >> 26) == 3) { /* sync or twi */ unsigned int rb; |