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-rw-r--r--arch/powerpc/kernel/exceptions-64s.S15
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index a9312b52fe6f..b886795060fd 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -391,9 +391,7 @@ EXC_COMMON_BEGIN(machine_check_handle_early)
*/
BEGIN_FTR_SECTION
rlwinm. r11,r12,47-31,30,31
- beq- 4f
- BRANCH_TO_COMMON(r10, machine_check_idle_common)
-4:
+ bne machine_check_idle_common
END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
#endif
@@ -1413,10 +1411,8 @@ USE_TEXT_SECTION()
.balign IFETCH_ALIGN_BYTES
do_hash_page:
#ifdef CONFIG_PPC_STD_MMU_64
- andis. r0,r4,0xa410 /* weird error? */
+ andis. r0,r4,0xa450 /* weird error? */
bne- handle_page_fault /* if not, try to insert a HPTE */
- andis. r0,r4,DSISR_DABRMATCH@h
- bne- handle_dabr_fault
CURRENT_THREAD_INFO(r11, r1)
lwz r0,TI_PREEMPT(r11) /* If we're in an "NMI" */
andis. r0,r0,NMI_MASK@h /* (i.e. an irq when soft-disabled) */
@@ -1440,11 +1436,16 @@ do_hash_page:
/* Error */
blt- 13f
+
+ /* Reload DSISR into r4 for the DABR check below */
+ ld r4,_DSISR(r1)
#endif /* CONFIG_PPC_STD_MMU_64 */
/* Here we have a page fault that hash_page can't handle. */
handle_page_fault:
-11: ld r4,_DAR(r1)
+11: andis. r0,r4,DSISR_DABRMATCH@h
+ bne- handle_dabr_fault
+ ld r4,_DAR(r1)
ld r5,_DSISR(r1)
addi r3,r1,STACK_FRAME_OVERHEAD
bl do_page_fault