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| author | Kumar Gala <galak@kernel.crashing.org> | 2008-04-30 13:17:22 +0400 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2008-06-02 23:56:06 +0400 |
| commit | 369e757b65d4a5e49bae7cfaf671e784f891cfbe (patch) | |
| tree | aa144c5db61f00384a552c33ace99c454fe5ea23 /arch/powerpc/kernel/entry_32.S | |
| parent | bcf0b0880710409420a4e3b15dbf4b9a63542c0b (diff) | |
| download | linux-369e757b65d4a5e49bae7cfaf671e784f891cfbe.tar.xz | |
[POWERPC] Rework EXC_LEVEL_EXCEPTION_PROLOG code
* Cleanup the code a bit my allocating an INT_FRAME on our exception
stack there by make references go from GPR11-INT_FRAME_SIZE(r8) to
just GPR11(r8)
* simplify {lvl}_transfer_to_handler code by moving the copying of the
temp registers we use if we come from user space into the PROLOG
* If the exception came from kernel mode copy thread_info flags,
preempt, and task pointer from the process thread_info.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 888a364043a8..c94aba54b5dd 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -44,29 +44,16 @@ #endif #ifdef CONFIG_BOOKE -#include "head_booke.h" -#define TRANSFER_TO_HANDLER_EXC_LEVEL(exc_level) \ - mtspr exc_level##_SPRG,r8; \ - BOOKE_LOAD_EXC_LEVEL_STACK(exc_level); \ - lwz r0,GPR10-INT_FRAME_SIZE(r8); \ - stw r0,GPR10(r11); \ - lwz r0,GPR11-INT_FRAME_SIZE(r8); \ - stw r0,GPR11(r11); \ - mfspr r8,exc_level##_SPRG - .globl mcheck_transfer_to_handler mcheck_transfer_to_handler: - TRANSFER_TO_HANDLER_EXC_LEVEL(MCHECK) b transfer_to_handler_full .globl debug_transfer_to_handler debug_transfer_to_handler: - TRANSFER_TO_HANDLER_EXC_LEVEL(DEBUG) b transfer_to_handler_full .globl crit_transfer_to_handler crit_transfer_to_handler: - TRANSFER_TO_HANDLER_EXC_LEVEL(CRIT) /* fall through */ #endif |