microblaze: Use instruction with delay slot
Michal Simek [Mon, 22 Mar 2010 19:43:27 +0000 (20:43 +0100)]
Sync labels.

Signed-off-by: Michal Simek <monstr@monstr.eu>

arch/microblaze/kernel/hw_exception_handler.S

index 5d8c3de..995a212 100644 (file)
@@ -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