From: Xiongwei Song <sxwj...@gmail.com>
Use _DEAR to get the offset of dear register in pr_regs for 64e cpus.
Signed-off-by: Xiongwei Song <sxwj...@gmail.com>
---
arch/powerpc/kernel/asm-offsets.c | 13 +++----------
arch/powerpc/kernel/exceptions-64e.S | 8 ++++----
2 files changed, 7 insertions(+), 14 deletions(-)
diff --git a/arch/powerpc/kernel/asm-offsets.c
b/arch/powerpc/kernel/asm-offsets.c
index f4ebc435fd78..8357d5fcd09e 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -286,23 +286,16 @@ int main(void)
STACK_PT_REGS_OFFSET(_CCR, ccr);
STACK_PT_REGS_OFFSET(_XER, xer);
STACK_PT_REGS_OFFSET(_DAR, dar);
+ STACK_PT_REGS_OFFSET(_DEAR, dear);
STACK_PT_REGS_OFFSET(_DSISR, dsisr);
STACK_PT_REGS_OFFSET(_ESR, esr);
STACK_PT_REGS_OFFSET(ORIG_GPR3, orig_gpr3);
STACK_PT_REGS_OFFSET(RESULT, result);
STACK_PT_REGS_OFFSET(_TRAP, trap);
-#ifndef CONFIG_PPC64
- /*
- * The PowerPC 400-class & Book-E processors have neither the DAR
- * nor the DSISR SPRs. Hence, we overload them to hold the similar
- * DEAR and ESR SPRs for such processors. For critical interrupts
- * we use them to hold SRR0 and SRR1.
- */
- STACK_PT_REGS_OFFSET(_DEAR, dar);
-#else /* CONFIG_PPC64 */
+#ifdef CONFIG_PPC64
STACK_PT_REGS_OFFSET(SOFTE, softe);
STACK_PT_REGS_OFFSET(_PPR, ppr);
-#endif /* CONFIG_PPC64 */
+#endif
#ifdef CONFIG_PPC_PKEY
STACK_PT_REGS_OFFSET(STACK_REGS_AMR, amr);
diff --git a/arch/powerpc/kernel/exceptions-64e.S
b/arch/powerpc/kernel/exceptions-64e.S
index bf8c4c2f98ea..221e085e8c8c 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -545,7 +545,7 @@ __end_interrupts:
PROLOG_ADDITION_2REGS)
mfspr r14,SPRN_DEAR
mfspr r15,SPRN_ESR
- std r14,_DAR(r1)
+ std r14,_DEAR(r1)
std r15,_ESR(r1)
ld r14,PACA_EXGEN+EX_R14(r13)
ld r15,PACA_EXGEN+EX_R15(r13)
@@ -558,7 +558,7 @@ __end_interrupts:
PROLOG_ADDITION_2REGS)
li r15,0
mr r14,r10
- std r14,_DAR(r1)
+ std r14,_DEAR(r1)
std r15,_ESR(r1)
ld r14,PACA_EXGEN+EX_R14(r13)
ld r15,PACA_EXGEN+EX_R15(r13)
@@ -575,7 +575,7 @@ __end_interrupts:
PROLOG_ADDITION_2REGS)
mfspr r14,SPRN_DEAR
mfspr r15,SPRN_ESR
- std r14,_DAR(r1)
+ std r14,_DEAR(r1)
std r15,_ESR(r1)
ld r14,PACA_EXGEN+EX_R14(r13)
ld r15,PACA_EXGEN+EX_R15(r13)
@@ -1057,7 +1057,7 @@ bad_stack_book3e:
std r11,_CCR(r1)
mfspr r10,SPRN_DEAR
mfspr r11,SPRN_ESR
- std r10,_DAR(r1)
+ std r10,_DEAR(r1)
std r11,_ESR(r1)
std r0,GPR0(r1); /* save r0 in stackframe */ \
std r2,GPR2(r1); /* save r2 in stackframe */ \
--
2.30.2
