diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2019-06-22 23:15:12 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-07-02 20:24:41 +1000 |
| commit | bd7b6d1334c5fd92c1e1a9c8179154e115f427b0 (patch) | |
| tree | d400dd1bd1f5fd32482ace62d891fa531b9437e4 /arch/powerpc/include/asm | |
| parent | 4508a74a63154fea5c2d36d8ad064273c5ea9608 (diff) | |
powerpc/64s/exception: consolidate EXCEPTION_PROLOG_2 with _NORI variant
Switch to a gas macro that conditionally expands the RI clearing
instruction.
No generated code change.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/exception-64s.h | 43 |
1 files changed, 11 insertions, 32 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index eddd74cf36c3..82a1c0576fbb 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -323,32 +323,11 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) #define EXCEPTION_PROLOG_1(area, extra, vec) \ _EXCEPTION_PROLOG_1(area, extra, vec) -.macro EXCEPTION_PROLOG_2 label, hsrr - ld r10,PACAKMSR(r13) /* get MSR value for kernel */ - .if \hsrr - mfspr r11,SPRN_HSRR0 /* save HSRR0 */ - .else - mfspr r11,SPRN_SRR0 /* save SRR0 */ - .endif - LOAD_HANDLER(r12,\label\()) - .if \hsrr - mtspr SPRN_HSRR0,r12 - mfspr r12,SPRN_HSRR1 /* and HSRR1 */ - mtspr SPRN_HSRR1,r10 - HRFI_TO_KERNEL - .else - mtspr SPRN_SRR0,r12 - mfspr r12,SPRN_SRR1 /* and SRR1 */ - mtspr SPRN_SRR1,r10 - RFI_TO_KERNEL - .endif - b . /* prevent speculative execution */ -.endm - -/* _NORI variant keeps MSR_RI clear */ -.macro EXCEPTION_PROLOG_2_NORI label, hsrr +.macro EXCEPTION_PROLOG_2 label, hsrr, set_ri ld r10,PACAKMSR(r13) /* get MSR value for kernel */ + .if ! \set_ri xori r10,r10,MSR_RI /* Clear MSR_RI */ + .endif .if \hsrr mfspr r11,SPRN_HSRR0 /* save HSRR0 */ .else @@ -373,7 +352,7 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_PROLOG_0(area); \ EXCEPTION_PROLOG_1(area, extra, vec); \ - EXCEPTION_PROLOG_2 label, h + EXCEPTION_PROLOG_2 label, h, 1 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE /* @@ -442,7 +421,7 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) #define EXCEPTION_PROLOG_NORI(area, label, h, extra, vec) \ EXCEPTION_PROLOG_0(area); \ EXCEPTION_PROLOG_1(area, extra, vec); \ - EXCEPTION_PROLOG_2_NORI label, h + EXCEPTION_PROLOG_2 label, h, 0 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER .macro KVMTEST hsrr, n @@ -599,14 +578,14 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) #define STD_EXCEPTION_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_PR, vec); \ - EXCEPTION_PROLOG_2 label, EXC_STD + EXCEPTION_PROLOG_2 label, EXC_STD, 1 #define STD_EXCEPTION_HV(loc, vec, label) \ EXCEPTION_PROLOG(PACA_EXGEN, label, EXC_HV, KVMTEST_HV, vec) #define STD_EXCEPTION_HV_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_HV, vec); \ - EXCEPTION_PROLOG_2 label, EXC_HV + EXCEPTION_PROLOG_2 label, EXC_HV, 1 #define STD_RELON_EXCEPTION(loc, vec, label) \ /* No guest interrupts come through here */ \ @@ -670,21 +649,21 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_PROLOG_0(PACA_EXGEN); \ MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec, bitmask); \ - EXCEPTION_PROLOG_2 label, h + EXCEPTION_PROLOG_2 label, h, 1 #define MASKABLE_EXCEPTION(vec, label, bitmask) \ __MASKABLE_EXCEPTION(vec, label, EXC_STD, SOFTEN_TEST_PR, bitmask) #define MASKABLE_EXCEPTION_OOL(vec, label, bitmask) \ MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_PR, vec, bitmask);\ - EXCEPTION_PROLOG_2 label, EXC_STD + EXCEPTION_PROLOG_2 label, EXC_STD, 1 #define MASKABLE_EXCEPTION_HV(vec, label, bitmask) \ __MASKABLE_EXCEPTION(vec, label, EXC_HV, SOFTEN_TEST_HV, bitmask) #define MASKABLE_EXCEPTION_HV_OOL(vec, label, bitmask) \ MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_HV, vec, bitmask);\ - EXCEPTION_PROLOG_2 label, EXC_HV + EXCEPTION_PROLOG_2 label, EXC_HV, 1 #define __MASKABLE_RELON_EXCEPTION(vec, label, h, extra, bitmask) \ SET_SCRATCH0(r13); /* save r13 */ \ @@ -697,7 +676,7 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) #define MASKABLE_RELON_EXCEPTION_OOL(vec, label, bitmask) \ MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_NOTEST_PR, vec, bitmask);\ - EXCEPTION_PROLOG_2 label, EXC_STD + EXCEPTION_PROLOG_2 label, EXC_STD, 1 #define MASKABLE_RELON_EXCEPTION_HV(vec, label, bitmask) \ __MASKABLE_RELON_EXCEPTION(vec, label, EXC_HV, SOFTEN_TEST_HV, bitmask) |