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authorKumar Gala <galak@kernel.crashing.org>2008-04-30 04:17:22 -0500
committerKumar Gala <galak@kernel.crashing.org>2008-06-02 14:56:06 -0500
commit369e757b65d4a5e49bae7cfaf671e784f891cfbe (patch)
treeaa144c5db61f00384a552c33ace99c454fe5ea23 /arch/powerpc/kernel/entry_32.S
parentbcf0b0880710409420a4e3b15dbf4b9a63542c0b (diff)
downloadlinux-369e757b65d4a5e49bae7cfaf671e784f891cfbe.tar.bz2
[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.S13
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