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authorNicholas Piggin <npiggin@gmail.com>2016-08-10 13:48:42 +0300
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2016-08-22 04:09:33 +0300
commit3f3b5dc14c25254d3fe98115c71b2a1f3ed97798 (patch)
treedbf10aa818d7654743d1ea57274e0a0edaba4b1f /arch
parent66443efa83dc73775100b7442962ce2cb0d4472e (diff)
downloadlinux-3f3b5dc14c25254d3fe98115c71b2a1f3ed97798.tar.xz
powerpc/pseries: PACA save area fix for general exception vs MCE
MCE must not use PACA_EXGEN. When a general exception enables MSR_RI, that means SPRN_SRR[01] and SPRN_SPRG are no longer used. However the PACA save area is still in use. Acked-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index df6d45eb4115..034b7eaf68d2 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -969,14 +969,14 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
machine_check_common:
mfspr r10,SPRN_DAR
- std r10,PACA_EXGEN+EX_DAR(r13)
+ std r10,PACA_EXMC+EX_DAR(r13)
mfspr r10,SPRN_DSISR
- stw r10,PACA_EXGEN+EX_DSISR(r13)
+ stw r10,PACA_EXMC+EX_DSISR(r13)
EXCEPTION_PROLOG_COMMON(0x200, PACA_EXMC)
FINISH_NAP
RECONCILE_IRQ_STATE(r10, r11)
- ld r3,PACA_EXGEN+EX_DAR(r13)
- lwz r4,PACA_EXGEN+EX_DSISR(r13)
+ ld r3,PACA_EXMC+EX_DAR(r13)
+ lwz r4,PACA_EXMC+EX_DSISR(r13)
std r3,_DAR(r1)
std r4,_DSISR(r1)
bl save_nvgprs