diff options
| -rw-r--r-- | arch/powerpc/mm/fault.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 26ec0dd4f419..e2f3144a48b9 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -237,6 +237,26 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address, if (unlikely(debugger_fault_handler(regs))) goto bail; +#if defined(CONFIG_6xx) + if (error_code & 0x95700000) { + /* an error such as lwarx to I/O controller space, + address matching DABR, eciwx, etc. */ + code = SEGV_ACCERR; + goto bad_area_nosemaphore; + } +#endif /* CONFIG_6xx */ +#if defined(CONFIG_8xx) + /* The MPC8xx seems to always set 0x80000000, which is + * "undefined". Of those that can be set, this is the only + * one which seems bad. + */ + if (error_code & 0x10000000) { + /* Guarded storage error. */ + code = SEGV_ACCERR; + goto bad_area_nosemaphore; + } +#endif /* CONFIG_8xx */ + /* * The kernel should never take an execute fault nor should it * take a page fault to a kernel address. @@ -351,21 +371,6 @@ retry: good_area: code = SEGV_ACCERR; -#if defined(CONFIG_6xx) - if (error_code & 0x95700000) - /* an error such as lwarx to I/O controller space, - address matching DABR, eciwx, etc. */ - goto bad_area; -#endif /* CONFIG_6xx */ -#if defined(CONFIG_8xx) - /* The MPC8xx seems to always set 0x80000000, which is - * "undefined". Of those that can be set, this is the only - * one which seems bad. - */ - if (error_code & 0x10000000) - /* Guarded storage error. */ - goto bad_area; -#endif /* CONFIG_8xx */ if (is_exec) { /* |