[PATCH 20/20] powerpc/8xx: Don't restore regs to save them again.

[Christophe Leroy]

There is not need to restore r10, r11 and cr registers at this end of ITLBmiss
handler as they are saved again to the same place in ITLBError handler we are
jumping to.

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>

---
 arch/powerpc/kernel/head_8xx.S |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 99438d8..102fe9f 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -380,8 +380,7 @@ InstructionTLBMiss:
 	lwz	r3, 8(r0)
 #endif
 	mfspr	r10, SPRN_SPRG_SCRATCH2
-	EXCEPTION_EPILOG_0
-	b	InstructionTLBError
+	b	InstructionTLBError1
 
 	. = 0x1200
 DataStoreTLBMiss:
@@ -470,7 +469,10 @@ DataStoreTLBMiss:
  */
 	. = 0x1300
 InstructionTLBError:
-	EXCEPTION_PROLOG
+	EXCEPTION_PROLOG_0
+InstructionTLBError1:
+	EXCEPTION_PROLOG_1
+	EXCEPTION_PROLOG_2
 	mr	r4,r12
 	mr	r5,r9
 	EXC_XFER_LITE(0x1300, handle_page_fault)
-- 
1.7.1

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