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-rw-r--r--arch/powerpc/include/asm/exception-64s.h15
-rw-r--r--arch/powerpc/include/asm/reg.h14
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S26
-rw-r--r--arch/powerpc/kvm/book3s_rmhandlers.S6
-rw-r--r--arch/powerpc/kvm/book3s_segment.S2
-rw-r--r--arch/powerpc/platforms/iseries/exception.S2
-rw-r--r--arch/powerpc/platforms/iseries/exception.h4
7 files changed, 41 insertions, 28 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index fb5b0af30fcf..d6b4849df9b1 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -60,16 +60,15 @@
#define EXC_HV H
#define EXC_STD
-#define __EXCEPTION_PROLOG_1(area, h) \
+#define EXCEPTION_PROLOG_1(area) \
GET_PACA(r13); \
std r9,area+EX_R9(r13); /* save r9 - r12 */ \
std r10,area+EX_R10(r13); \
std r11,area+EX_R11(r13); \
std r12,area+EX_R12(r13); \
- mfspr r9,SPRN_SPRG_##h##SCRATCH0; \
+ GET_SCRATCH0(r9); \
std r9,area+EX_R13(r13); \
mfcr r9
-#define EXCEPTION_PROLOG_1(area, h) __EXCEPTION_PROLOG_1(area, h)
#define __EXCEPTION_PROLOG_PSERIES_1(label, h) \
ld r12,PACAKBASE(r13); /* get high part of &label */ \
@@ -85,7 +84,7 @@
__EXCEPTION_PROLOG_PSERIES_1(label, h)
#define EXCEPTION_PROLOG_PSERIES(area, label, h) \
- EXCEPTION_PROLOG_1(area, h); \
+ EXCEPTION_PROLOG_1(area); \
EXCEPTION_PROLOG_PSERIES_1(label, h);
/*
@@ -156,7 +155,7 @@
label##_pSeries: \
HMT_MEDIUM; \
DO_KVM vec; \
- mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
+ SET_SCRATCH0(r13); /* save r13 */ \
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_STD)
#define STD_EXCEPTION_HV(loc, vec, label) \
@@ -165,13 +164,13 @@ label##_pSeries: \
label##_hv: \
HMT_MEDIUM; \
DO_KVM vec; \
- mtspr SPRN_SPRG_HSCRATCH0,r13;/* save r13 */ \
+ SET_SCRATCH0(r13); /* save r13 */ \
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_HV)
#define __MASKABLE_EXCEPTION_PSERIES(vec, label, h) \
HMT_MEDIUM; \
DO_KVM vec; \
- mtspr SPRN_SPRG_##h##SCRATCH0,r13; /* save r13 */ \
+ SET_SCRATCH0(r13); /* save r13 */ \
GET_PACA(r13); \
std r9,PACA_EXGEN+EX_R9(r13); /* save r9, r10 */ \
std r10,PACA_EXGEN+EX_R10(r13); \
@@ -179,7 +178,7 @@ label##_hv: \
mfcr r9; \
cmpwi r10,0; \
beq masked_##h##interrupt; \
- mfspr r10,SPRN_SPRG_##h##SCRATCH0; \
+ GET_SCRATCH0(r10); \
std r10,PACA_EXGEN+EX_R13(r13); \
std r11,PACA_EXGEN+EX_R11(r13); \
std r12,PACA_EXGEN+EX_R12(r13); \
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 13429a0eba09..76d7d5fea5be 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -802,6 +802,20 @@
FTR_SECTION_ELSE_NESTED(66); \
mtspr SPRN_SPRG_HPACA,rX; \
ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE_206, 66)
+
+#define GET_SCRATCH0(rX) \
+ BEGIN_FTR_SECTION_NESTED(66); \
+ mfspr rX,SPRN_SPRG_SCRATCH0; \
+ FTR_SECTION_ELSE_NESTED(66); \
+ mfspr rX,SPRN_SPRG_HSCRATCH0; \
+ ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE_206, 66)
+
+#define SET_SCRATCH0(rX) \
+ BEGIN_FTR_SECTION_NESTED(66); \
+ mtspr SPRN_SPRG_SCRATCH0,rX; \
+ FTR_SECTION_ELSE_NESTED(66); \
+ mtspr SPRN_SPRG_HSCRATCH0,rX; \
+ ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE_206, 66)
#endif
#ifdef CONFIG_PPC_BOOK3E_64
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 805e20657868..e513c1d35b2a 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -43,7 +43,7 @@ __start_interrupts:
_machine_check_pSeries:
HMT_MEDIUM
DO_KVM 0x200
- mtspr SPRN_SPRG_SCRATCH0,r13 /* save r13 */
+ SET_SCRATCH0(r13)
EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common, EXC_STD)
. = 0x300
@@ -51,7 +51,7 @@ _machine_check_pSeries:
data_access_pSeries:
HMT_MEDIUM
DO_KVM 0x300
- mtspr SPRN_SPRG_SCRATCH0,r13
+ SET_SCRATCH0(r13)
BEGIN_FTR_SECTION
GET_PACA(r13)
std r9,PACA_EXSLB+EX_R9(r13)
@@ -67,7 +67,7 @@ BEGIN_FTR_SECTION
std r11,PACA_EXGEN+EX_R11(r13)
ld r11,PACA_EXSLB+EX_R9(r13)
std r12,PACA_EXGEN+EX_R12(r13)
- mfspr r12,SPRN_SPRG_SCRATCH0
+ GET_SCRATCH0(r12)
std r10,PACA_EXGEN+EX_R10(r13)
std r11,PACA_EXGEN+EX_R9(r13)
std r12,PACA_EXGEN+EX_R13(r13)
@@ -81,7 +81,7 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_SLB)
data_access_slb_pSeries:
HMT_MEDIUM
DO_KVM 0x380
- mtspr SPRN_SPRG_SCRATCH0,r13
+ SET_SCRATCH0(r13)
GET_PACA(r13)
std r3,PACA_EXSLB+EX_R3(r13)
mfspr r3,SPRN_DAR
@@ -95,7 +95,7 @@ data_access_slb_pSeries:
std r10,PACA_EXSLB+EX_R10(r13)
std r11,PACA_EXSLB+EX_R11(r13)
std r12,PACA_EXSLB+EX_R12(r13)
- mfspr r10,SPRN_SPRG_SCRATCH0
+ GET_SCRATCH0(r10)
std r10,PACA_EXSLB+EX_R13(r13)
mfspr r12,SPRN_SRR1 /* and SRR1 */
#ifndef CONFIG_RELOCATABLE
@@ -120,7 +120,7 @@ data_access_slb_pSeries:
instruction_access_slb_pSeries:
HMT_MEDIUM
DO_KVM 0x480
- mtspr SPRN_SPRG_SCRATCH0,r13
+ SET_SCRATCH0(r13)
GET_PACA(r13)
std r3,PACA_EXSLB+EX_R3(r13)
mfspr r3,SPRN_SRR0 /* SRR0 is faulting address */
@@ -134,7 +134,7 @@ instruction_access_slb_pSeries:
std r10,PACA_EXSLB+EX_R10(r13)
std r11,PACA_EXSLB+EX_R11(r13)
std r12,PACA_EXSLB+EX_R12(r13)
- mfspr r10,SPRN_SPRG_SCRATCH0
+ GET_SCRATCH0(r10)
std r10,PACA_EXSLB+EX_R13(r13)
mfspr r12,SPRN_SRR1 /* and SRR1 */
#ifndef CONFIG_RELOCATABLE
@@ -272,7 +272,7 @@ masked_interrupt:
rotldi r10,r10,16
mtspr SPRN_SRR1,r10
ld r10,PACA_EXGEN+EX_R10(r13)
- mfspr r13,SPRN_SPRG_SCRATCH0
+ GET_SCRATCH0(r13)
rfid
b .
@@ -285,7 +285,7 @@ masked_Hinterrupt:
rotldi r10,r10,16
mtspr SPRN_HSRR1,r10
ld r10,PACA_EXGEN+EX_R10(r13)
- mfspr r13,SPRN_SPRG_HSCRATCH0
+ GET_SCRATCH0(r13)
hrfid
b .
@@ -293,7 +293,7 @@ masked_Hinterrupt:
do_stab_bolted_pSeries:
std r11,PACA_EXSLB+EX_R11(r13)
std r12,PACA_EXSLB+EX_R12(r13)
- mfspr r10,SPRN_SPRG_SCRATCH0
+ GET_SCRATCH0(r10)
std r10,PACA_EXSLB+EX_R13(r13)
EXCEPTION_PROLOG_PSERIES_1(.do_stab_bolted, EXC_STD)
@@ -305,14 +305,14 @@ do_stab_bolted_pSeries:
.align 7
system_reset_fwnmi:
HMT_MEDIUM
- mtspr SPRN_SPRG_SCRATCH0,r13 /* save r13 */
+ SET_SCRATCH0(r13) /* save r13 */
EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common, EXC_STD)
.globl machine_check_fwnmi
.align 7
machine_check_fwnmi:
HMT_MEDIUM
- mtspr SPRN_SPRG_SCRATCH0,r13 /* save r13 */
+ SET_SCRATCH0(r13) /* save r13 */
EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common, EXC_STD)
#endif /* CONFIG_PPC_PSERIES */
@@ -327,7 +327,7 @@ slb_miss_user_pseries:
std r10,PACA_EXGEN+EX_R10(r13)
std r11,PACA_EXGEN+EX_R11(r13)
std r12,PACA_EXGEN+EX_R12(r13)
- mfspr r10,SPRG_SCRATCH0
+ GET_SCRATCH0(r10)
ld r11,PACA_EXSLB+EX_R9(r13)
ld r12,PACA_EXSLB+EX_R3(r13)
std r10,PACA_EXGEN+EX_R13(r13)
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index 046e1f3d4432..ae99af66ca34 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -70,7 +70,7 @@
.global kvmppc_trampoline_\intno
kvmppc_trampoline_\intno:
- mtspr SPRN_SPRG_SCRATCH0, r13 /* Save r13 */
+ SET_SCRATCH0(r13) /* Save r13 */
/*
* First thing to do is to find out if we're coming
@@ -89,7 +89,7 @@ kvmppc_trampoline_\intno:
lwz r12, (SHADOW_VCPU_OFF + SVCPU_SCRATCH1)(r13)
mtcr r12
PPC_LL r12, (SHADOW_VCPU_OFF + SVCPU_SCRATCH0)(r13)
- mfspr r13, SPRN_SPRG_SCRATCH0 /* r13 = original r13 */
+ GET_SCRATCH0(r13) /* r13 = original r13 */
b kvmppc_resume_\intno /* Get back original handler */
/* Now we know we're handling a KVM guest */
@@ -157,7 +157,7 @@ kvmppc_handler_skip_ins:
lwz r12, (SHADOW_VCPU_OFF + SVCPU_SCRATCH1)(r13)
mtcr r12
PPC_LL r12, (SHADOW_VCPU_OFF + SVCPU_SCRATCH0)(r13)
- mfspr r13, SPRN_SPRG_SCRATCH0
+ GET_SCRATCH0(r13)
/* And get back into the code */
RFI
diff --git a/arch/powerpc/kvm/book3s_segment.S b/arch/powerpc/kvm/book3s_segment.S
index d842795d0f23..451264274b8c 100644
--- a/arch/powerpc/kvm/book3s_segment.S
+++ b/arch/powerpc/kvm/book3s_segment.S
@@ -168,7 +168,7 @@ kvmppc_handler_trampoline_exit:
PPC_STL r4, (SHADOW_VCPU_OFF + SVCPU_SHADOW_SRR1)(r13)
/* Get scratch'ed off registers */
- mfspr r9, SPRN_SPRG_SCRATCH0
+ GET_SCRATCH0(r9)
PPC_LL r8, (SHADOW_VCPU_OFF + SVCPU_SCRATCH0)(r13)
lwz r7, (SHADOW_VCPU_OFF + SVCPU_SCRATCH1)(r13)
diff --git a/arch/powerpc/platforms/iseries/exception.S b/arch/powerpc/platforms/iseries/exception.S
index f7a487231a11..32a56c6dfa72 100644
--- a/arch/powerpc/platforms/iseries/exception.S
+++ b/arch/powerpc/platforms/iseries/exception.S
@@ -155,7 +155,7 @@ BEGIN_FTR_SECTION
std r12,PACA_EXGEN+EX_R13(r13)
EXCEPTION_PROLOG_ISERIES_1
FTR_SECTION_ELSE
- EXCEPTION_PROLOG_1(PACA_EXGEN, EXC_STD)
+ EXCEPTION_PROLOG_1(PACA_EXGEN)
EXCEPTION_PROLOG_ISERIES_1
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_SLB)
b data_access_common
diff --git a/arch/powerpc/platforms/iseries/exception.h b/arch/powerpc/platforms/iseries/exception.h
index 57127d805fe3..bae3fba5ad8e 100644
--- a/arch/powerpc/platforms/iseries/exception.h
+++ b/arch/powerpc/platforms/iseries/exception.h
@@ -39,7 +39,7 @@
label##_iSeries: \
HMT_MEDIUM; \
mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
- EXCEPTION_PROLOG_1(area, EXC_STD); \
+ EXCEPTION_PROLOG_1(area); \
EXCEPTION_PROLOG_ISERIES_1; \
b label##_common
@@ -48,7 +48,7 @@ label##_iSeries: \
label##_iSeries: \
HMT_MEDIUM; \
mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
- EXCEPTION_PROLOG_1(PACA_EXGEN, EXC_STD); \
+ EXCEPTION_PROLOG_1(PACA_EXGEN); \
lbz r10,PACASOFTIRQEN(r13); \
cmpwi 0,r10,0; \
beq- label##_iSeries_masked; \
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-04 06:44:47 +0000