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-rw-r--r--arch/powerpc/kernel/head_booke.h31
1 files changed, 7 insertions, 24 deletions
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h
index f82470091697..87b806e8eded 100644
--- a/arch/powerpc/kernel/head_booke.h
+++ b/arch/powerpc/kernel/head_booke.h
@@ -128,37 +128,20 @@ BEGIN_FTR_SECTION
mr r12, r13
lwz r13, THREAD_NORMSAVE(2)(r10)
FTR_SECTION_ELSE
-#endif
mfcr r12
-#ifdef CONFIG_KVM_BOOKE_HV
ALT_FTR_SECTION_END_IFSET(CPU_FTR_EMB_HV)
+#else
+ mfcr r12
#endif
mfspr r9, SPRN_SRR1
BOOKE_CLEAR_BTB(r11)
- lwz r11, TASK_STACK - THREAD(r10)
+ mr r11, r1
+ lwz r1, TASK_STACK - THREAD(r10)
rlwinm r12,r12,0,4,2 /* Clear SO bit in CR */
- ALLOC_STACK_FRAME(r11, THREAD_SIZE - INT_FRAME_SIZE)
- stw r12, _CCR(r11) /* save various registers */
- mflr r12
- stw r12,_LINK(r11)
+ ALLOC_STACK_FRAME(r1, THREAD_SIZE - INT_FRAME_SIZE)
+ stw r12, _CCR(r1)
mfspr r12,SPRN_SRR0
- stw r1, GPR1(r11)
- stw r1, 0(r11)
- mr r1, r11
- stw r12,_NIP(r11)
- rlwinm r9,r9,0,14,12 /* clear MSR_WE (necessary?) */
- lis r12, STACK_FRAME_REGS_MARKER@ha /* exception frame marker */
- stw r2,GPR2(r11)
- addi r12, r12, STACK_FRAME_REGS_MARKER@l
- stw r9,_MSR(r11)
- li r2, \trapno
- stw r12, 8(r11)
- stw r2,_TRAP(r11)
- SAVE_GPR(0, r11)
- SAVE_4GPRS(3, r11)
- SAVE_2GPRS(7, r11)
-
- addi r2,r10,-THREAD
+ stw r12,_NIP(r1)
b transfer_to_syscall /* jump to handler */
.endm