From: Mahesh J Salgaonkar <mahesh@linux.vnet.ibm.com>
To: Michael Ellerman <michael@ellerman.id.au>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Subject: [PATCH] powerpc/book3s: Don't clear MSR_RI in hmi handler.
Date: Tue, 07 Oct 2014 15:55:33 +0530 [thread overview]
Message-ID: <20141007102515.30449.56223.stgit@mars.in.ibm.com> (raw)
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 --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
reply other threads:[~2014-10-07 10:25 UTC|newest]
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