This frees up one more register (and takes advantage of that to
clean things up a little bit).
This register will be used in the following patch.
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
arch/powerpc/kernel/exceptions-64s.S | 34 ++++++++++++++++------------
1 file changed, 20 insertions(+), 14 deletions(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S
b/arch/powerpc/kernel/exceptions-64s.S
index 0c7af27d6dc1..a5a0b17f77bf 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -2797,7 +2797,6 @@ INT_DEFINE_END(soft_nmi)
* and run it entirely with interrupts hard disabled.
*/
EXC_COMMON_BEGIN(soft_nmi_common)
- mfspr r11,SPRN_SRR0
mr r10,r1
ld r1,PACAEMERGSP(r13)
subi r1,r1,INT_FRAME_SIZE
@@ -2832,19 +2831,24 @@ masked_Hinterrupt:
.else
masked_interrupt:
.endif
- lbz r11,PACAIRQHAPPENED(r13)
- or r11,r11,r10
- stb r11,PACAIRQHAPPENED(r13)
+ stw r9,PACA_EXGEN+EX_CCR(r13)
+ lbz r9,PACAIRQHAPPENED(r13)
+ or r9,r9,r10
+ stb r9,PACAIRQHAPPENED(r13)
+
+ .if ! \hsrr
cmpwi r10,PACA_IRQ_DEC
bne 1f
- lis r10,0x7fff
- ori r10,r10,0xffff
- mtspr SPRN_DEC,r10
+ LOAD_REG_IMMEDIATE(r9, 0x7fffffff)
+ mtspr SPRN_DEC,r9
#ifdef CONFIG_PPC_WATCHDOG
+ lwz r9,PACA_EXGEN+EX_CCR(r13)
b soft_nmi_common
#else
b 2f
#endif
+ .endif
+
1: andi. r10,r10,PACA_IRQ_MUST_HARD_MASK
beq 2f
xori r12,r12,MSR_EE /* clear MSR_EE */
@@ -2853,17 +2857,19 @@ masked_interrupt:
.else
mtspr SPRN_SRR1,r12
.endif
- ori r11,r11,PACA_IRQ_HARD_DIS
- stb r11,PACAIRQHAPPENED(r13)
+ ori r9,r9,PACA_IRQ_HARD_DIS
+ stb r9,PACAIRQHAPPENED(r13)
2: /* done */
- li r10,0
+ li r9,0
.if \hsrr
- stb r10,PACAHSRR_VALID(r13)
+ stb r9,PACAHSRR_VALID(r13)
.else
- stb r10,PACASRR_VALID(r13)
+ stb r9,PACASRR_VALID(r13)
.endif
- ld r10,PACA_EXGEN+EX_CTR(r13)
- mtctr r10
+
+ ld r9,PACA_EXGEN+EX_CTR(r13)
+ mtctr r9
+ lwz r9,PACA_EXGEN+EX_CCR(r13)
mtcrf 0x80,r9
std r1,PACAR1(r13)
ld r9,PACA_EXGEN+EX_R9(r13)
--
2.23.0
