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powerpc/book3s: Don't clear MSR_RI in hmi handler.

Message ID 20141007102515.30449.56223.stgit@mars.in.ibm.com (mailing list archive)
State Accepted
Commit c675c7db629bd1abf4a9a36c0200686716eeea05
Delegated to: Michael Ellerman
Headers show

Commit Message

Mahesh J Salgaonkar Oct. 7, 2014, 10:25 a.m. UTC 
From: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>

In HMI interrupt handler we don't touch SRR0/SRR1, instead we touch
HSRR0/HSRR1. Hence we don't need to clear MSR_RI bit.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
---
 arch/powerpc/kernel/exceptions-64s.S |    5 -----
 1 file changed, 5 deletions(-)
diff mbox

Patch

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 050f79a..72e783e 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1270,11 +1270,6 @@  hmi_exception_early:
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	hmi_exception_realmode
 	/* Windup the stack. */
-	/* Clear MSR_RI before setting SRR0 and SRR1. */
-	li	r0,MSR_RI
-	mfmsr	r9			/* get MSR value */
-	andc	r9,r9,r0
-	mtmsrd	r9,1			/* Clear MSR_RI */
 	/* Move original HSRR0 and HSRR1 into the respective regs */
 	ld	r9,_MSR(r1)
 	mtspr	SPRN_HSRR1,r9