diff options
| author | Michal Simek <monstr@monstr.eu> | 2010-03-22 20:43:27 +0100 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2010-04-01 08:38:23 +0200 |
| commit | 3765d6958dfff34a15588e23c5d1274e1f6ba200 (patch) | |
| tree | 32aeae698e777fa424749c84aef1571e8df4fbcb /arch/microblaze/kernel/hw_exception_handler.S | |
| parent | bd1637d63e82aaf732ffbe907ba887fa12e82df4 (diff) | |
microblaze: Use instruction with delay slot
Sync labels.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/kernel/hw_exception_handler.S')
| -rw-r--r-- | arch/microblaze/kernel/hw_exception_handler.S | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S index 5d8c3de58b0..995a2123635 100644 --- a/arch/microblaze/kernel/hw_exception_handler.S +++ b/arch/microblaze/kernel/hw_exception_handler.S @@ -721,9 +721,8 @@ ex_handler_done: * Many of these bits are software only. Bits we don't set * here we (properly should) assume have the appropriate value. */ + brid finish_tlb_load andni r4, r4, 0x0ce2 /* Make sure 20, 21 are zero */ - - bri finish_tlb_load ex7: /* The bailout. Restore registers to pre-exception conditions * and call the heavyweights to help us out. @@ -779,7 +778,7 @@ ex_handler_done: lwi r4, r5, 0 /* Get Linux PTE */ andi r6, r4, _PAGE_PRESENT - beqi r6, ex7 + beqi r6, ex10 ori r4, r4, _PAGE_ACCESSED swi r4, r5, 0 @@ -792,9 +791,8 @@ ex_handler_done: * Many of these bits are software only. Bits we don't set * here we (properly should) assume have the appropriate value. */ + brid finish_tlb_load andni r4, r4, 0x0ce2 /* Make sure 20, 21 are zero */ - - bri finish_tlb_load ex10: /* The bailout. Restore registers to pre-exception conditions * and call the heavyweights to help us out. @@ -824,9 +822,9 @@ ex_handler_done: andi r5, r5, (MICROBLAZE_TLB_SIZE-1) ori r6, r0, 1 cmp r31, r5, r6 - blti r31, sem + blti r31, ex12 addik r5, r6, 1 - sem: + ex12: /* MS: save back current TLB index */ swi r5, r0, TOPHYS(tlb_index) @@ -846,7 +844,6 @@ ex_handler_done: nop /* Done...restore registers and get out of here. */ - ex12: mts rpid, r11 nop bri 4 |