summaryrefslogtreecommitdiffstats
path: root/arch/microblaze
diff options
context:
space:
mode:
authorMichal Simek <monstr@monstr.eu>2010-03-22 20:43:27 +0100
committerMichal Simek <monstr@monstr.eu>2010-04-01 08:38:23 +0200
commit3765d6958dfff34a15588e23c5d1274e1f6ba200 (patch)
tree32aeae698e777fa424749c84aef1571e8df4fbcb /arch/microblaze
parentbd1637d63e82aaf732ffbe907ba887fa12e82df4 (diff)
downloadop-kernel-dev-3765d6958dfff34a15588e23c5d1274e1f6ba200.zip
op-kernel-dev-3765d6958dfff34a15588e23c5d1274e1f6ba200.tar.gz
microblaze: Use instruction with delay slot
Sync labels. Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/kernel/hw_exception_handler.S13
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 5d8c3de..995a212 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
OpenPOWER on IntegriCloud