diff options
Diffstat (limited to 'arch/powerpc/include/asm/exception-64s.h')
| -rw-r--r-- | arch/powerpc/include/asm/exception-64s.h | 65 |
1 files changed, 33 insertions, 32 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index 337b6fa2f8c..1d98e05be51 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -56,30 +56,37 @@ #define LOAD_HANDLER(reg, label) \ addi reg,reg,(label)-_stext; /* virt addr of handler ... */ -#define EXCEPTION_PROLOG_1(area) \ +/* Exception register prefixes */ +#define EXC_HV H +#define EXC_STD + +#define __EXCEPTION_PROLOG_1(area, h) \ 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_SCRATCH0; \ + mfspr r9,SPRN_SPRG_##h##SCRATCH0; \ 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) \ +#define __EXCEPTION_PROLOG_PSERIES_1(label, h) \ ld r12,PACAKBASE(r13); /* get high part of &label */ \ ld r10,PACAKMSR(r13); /* get MSR value for kernel */ \ - mfspr r11,SPRN_SRR0; /* save SRR0 */ \ + mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \ LOAD_HANDLER(r12,label) \ - mtspr SPRN_SRR0,r12; \ - mfspr r12,SPRN_SRR1; /* and SRR1 */ \ - mtspr SPRN_SRR1,r10; \ - rfid; \ + mtspr SPRN_##h##SRR0,r12; \ + mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \ + mtspr SPRN_##h##SRR1,r10; \ + h##rfid; \ b . /* prevent speculative execution */ +#define EXCEPTION_PROLOG_PSERIES_1(label, h) \ + __EXCEPTION_PROLOG_PSERIES_1(label, h) -#define EXCEPTION_PROLOG_PSERIES(area, label) \ - EXCEPTION_PROLOG_1(area); \ - EXCEPTION_PROLOG_PSERIES_1(label); +#define EXCEPTION_PROLOG_PSERIES(area, label, h) \ + EXCEPTION_PROLOG_1(area, h); \ + EXCEPTION_PROLOG_PSERIES_1(label, h); /* * The common exception prolog is used for all except a few exceptions @@ -150,50 +157,44 @@ label##_pSeries: \ HMT_MEDIUM; \ DO_KVM n; \ mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \ - EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common) + EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_STD) #define HSTD_EXCEPTION_PSERIES(n, label) \ . = n; \ .globl label##_pSeries; \ label##_pSeries: \ HMT_MEDIUM; \ - mtspr SPRN_SPRG_SCRATCH0,r20; /* save r20 */ \ - mfspr r20,SPRN_HSRR0; /* copy HSRR0 to SRR0 */ \ - mtspr SPRN_SRR0,r20; \ - mfspr r20,SPRN_HSRR1; /* copy HSRR0 to SRR0 */ \ - mtspr SPRN_SRR1,r20; \ - mfspr r20,SPRN_SPRG_SCRATCH0; /* restore r20 */ \ - mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \ - EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common) + DO_KVM n; \ + mtspr SPRN_SPRG_HSCRATCH0,r13;/* save r13 */ \ + EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_HV) -#define MASKABLE_EXCEPTION_PSERIES(n, label) \ - . = n; \ - .globl label##_pSeries; \ -label##_pSeries: \ +#define __MASKABLE_EXCEPTION_PSERIES(n, label, h) \ HMT_MEDIUM; \ DO_KVM n; \ - mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \ + mtspr SPRN_SPRG_##h##SCRATCH0,r13; /* save r13 */ \ GET_PACA(r13); \ std r9,PACA_EXGEN+EX_R9(r13); /* save r9, r10 */ \ std r10,PACA_EXGEN+EX_R10(r13); \ lbz r10,PACASOFTIRQEN(r13); \ mfcr r9; \ cmpwi r10,0; \ - beq masked_interrupt; \ - mfspr r10,SPRN_SPRG_SCRATCH0; \ + beq masked_##h##interrupt; \ + mfspr r10,SPRN_SPRG_##h##SCRATCH0; \ std r10,PACA_EXGEN+EX_R13(r13); \ std r11,PACA_EXGEN+EX_R11(r13); \ std r12,PACA_EXGEN+EX_R12(r13); \ ld r12,PACAKBASE(r13); /* get high part of &label */ \ ld r10,PACAKMSR(r13); /* get MSR value for kernel */ \ - mfspr r11,SPRN_SRR0; /* save SRR0 */ \ + mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \ LOAD_HANDLER(r12,label##_common) \ - mtspr SPRN_SRR0,r12; \ - mfspr r12,SPRN_SRR1; /* and SRR1 */ \ - mtspr SPRN_SRR1,r10; \ - rfid; \ + mtspr SPRN_##h##SRR0,r12; \ + mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \ + mtspr SPRN_##h##SRR1,r10; \ + h##rfid; \ b . /* prevent speculative execution */ +#define MASKABLE_EXCEPTION_PSERIES(n, label, h) \ + __MASKABLE_EXCEPTION_PSERIES(n, label, h) #ifdef CONFIG_PPC_ISERIES #define DISABLE_INTS \ |