diff options
Diffstat (limited to 'arch/powerpc/include/asm/exception-64s.h')
| -rw-r--r-- | arch/powerpc/include/asm/exception-64s.h | 148 |
1 files changed, 60 insertions, 88 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index bed66e5743b3..2e4e7d878c8e 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -34,6 +34,7 @@ * exception handlers (including pSeries LPAR) and iSeries LPAR * implementations as possible. */ +#include <asm/head-64.h> #define EX_R9 0 #define EX_R10 8 @@ -52,7 +53,6 @@ #ifdef CONFIG_RELOCATABLE #define __EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \ - ld r12,PACAKBASE(r13); /* get high part of &label */ \ mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \ LOAD_HANDLER(r12,label); \ mtctr r12; \ @@ -84,13 +84,14 @@ /* * We're short on space and time in the exception prolog, so we can't - * use the normal SET_REG_IMMEDIATE macro. Normally we just need the - * low halfword of the address, but for Kdump we need the whole low - * word. + * use the normal LOAD_REG_IMMEDIATE macro to load the address of label. + * Instead we get the base of the kernel from paca->kernelbase and or in the low + * part of label. This requires that the label be within 64KB of kernelbase, and + * that kernelbase be 64K aligned. */ #define LOAD_HANDLER(reg, label) \ - /* Handlers must be within 64K of kbase, which must be 64k aligned */ \ - ori reg,reg,(label)-_stext; /* virt addr of handler ... */ + ld reg,PACAKBASE(r13); /* get high part of &label */ \ + ori reg,reg,(FIXED_SYMBOL_ABS_ADDR(label))@l; /* Exception register prefixes */ #define EXC_HV H @@ -175,7 +176,6 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) __EXCEPTION_PROLOG_1(area, extra, vec) #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_##h##SRR0; /* save SRR0 */ \ LOAD_HANDLER(r12,label) \ @@ -192,10 +192,10 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) EXCEPTION_PROLOG_1(area, extra, vec); \ EXCEPTION_PROLOG_PSERIES_1(label, h); -#define __KVMTEST(n) \ - lbz r10,HSTATE_IN_GUEST(r13); \ +#define __KVMTEST(h, n) \ + lbz r10,HSTATE_IN_GUEST(r13); \ cmpwi r10,0; \ - bne do_kvm_##n + bne do_kvm_##h##n #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE /* @@ -208,8 +208,7 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) #define kvmppc_interrupt kvmppc_interrupt_pr #endif -#define __KVM_HANDLER(area, h, n) \ -do_kvm_##n: \ +#define __KVM_HANDLER_PROLOG(area, n) \ BEGIN_FTR_SECTION_NESTED(947) \ ld r10,area+EX_CFAR(r13); \ std r10,HSTATE_CFAR(r13); \ @@ -222,21 +221,23 @@ do_kvm_##n: \ stw r9,HSTATE_SCRATCH1(r13); \ ld r9,area+EX_R9(r13); \ std r12,HSTATE_SCRATCH0(r13); \ + +#define __KVM_HANDLER(area, h, n) \ + __KVM_HANDLER_PROLOG(area, n) \ li r12,n; \ b kvmppc_interrupt #define __KVM_HANDLER_SKIP(area, h, n) \ -do_kvm_##n: \ cmpwi r10,KVM_GUEST_MODE_SKIP; \ ld r10,area+EX_R10(r13); \ beq 89f; \ - stw r9,HSTATE_SCRATCH1(r13); \ + stw r9,HSTATE_SCRATCH1(r13); \ BEGIN_FTR_SECTION_NESTED(948) \ ld r9,area+EX_PPR(r13); \ std r9,HSTATE_PPR(r13); \ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948); \ ld r9,area+EX_R9(r13); \ - std r12,HSTATE_SCRATCH0(r13); \ + std r12,HSTATE_SCRATCH0(r13); \ li r12,n; \ b kvmppc_interrupt; \ 89: mtocrf 0x80,r9; \ @@ -244,12 +245,12 @@ do_kvm_##n: \ b kvmppc_skip_##h##interrupt #ifdef CONFIG_KVM_BOOK3S_64_HANDLER -#define KVMTEST(n) __KVMTEST(n) +#define KVMTEST(h, n) __KVMTEST(h, n) #define KVM_HANDLER(area, h, n) __KVM_HANDLER(area, h, n) #define KVM_HANDLER_SKIP(area, h, n) __KVM_HANDLER_SKIP(area, h, n) #else -#define KVMTEST(n) +#define KVMTEST(h, n) #define KVM_HANDLER(area, h, n) #define KVM_HANDLER_SKIP(area, h, n) #endif @@ -333,94 +334,79 @@ do_kvm_##n: \ /* * Exception vectors. */ -#define STD_EXCEPTION_PSERIES(vec, label) \ - . = vec; \ - .globl label##_pSeries; \ -label##_pSeries: \ +#define STD_EXCEPTION_PSERIES(vec, label) \ SET_SCRATCH0(r13); /* save r13 */ \ - EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, \ - EXC_STD, KVMTEST, vec) + EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label, \ + EXC_STD, KVMTEST_PR, vec); \ /* Version of above for when we have to branch out-of-line */ +#define __OOL_EXCEPTION(vec, label, hdlr) \ + SET_SCRATCH0(r13) \ + EXCEPTION_PROLOG_0(PACA_EXGEN) \ + b hdlr; + #define STD_EXCEPTION_PSERIES_OOL(vec, label) \ - .globl label##_pSeries; \ -label##_pSeries: \ - EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST, vec); \ - EXCEPTION_PROLOG_PSERIES_1(label##_common, EXC_STD) - -#define STD_EXCEPTION_HV(loc, vec, label) \ - . = loc; \ - .globl label##_hv; \ -label##_hv: \ + EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_PR, vec); \ + EXCEPTION_PROLOG_PSERIES_1(label, EXC_STD) + +#define STD_EXCEPTION_HV(loc, vec, label) \ SET_SCRATCH0(r13); /* save r13 */ \ - EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, \ - EXC_HV, KVMTEST, vec) + EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label, \ + EXC_HV, KVMTEST_HV, vec); -/* Version of above for when we have to branch out-of-line */ -#define STD_EXCEPTION_HV_OOL(vec, label) \ - .globl label##_hv; \ -label##_hv: \ - EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST, vec); \ - EXCEPTION_PROLOG_PSERIES_1(label##_common, EXC_HV) +#define STD_EXCEPTION_HV_OOL(vec, label) \ + EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_HV, vec); \ + EXCEPTION_PROLOG_PSERIES_1(label, EXC_HV) #define STD_RELON_EXCEPTION_PSERIES(loc, vec, label) \ - . = loc; \ - .globl label##_relon_pSeries; \ -label##_relon_pSeries: \ /* No guest interrupts come through here */ \ SET_SCRATCH0(r13); /* save r13 */ \ - EXCEPTION_RELON_PROLOG_PSERIES(PACA_EXGEN, label##_common, \ - EXC_STD, NOTEST, vec) + EXCEPTION_RELON_PROLOG_PSERIES(PACA_EXGEN, label, EXC_STD, NOTEST, vec); #define STD_RELON_EXCEPTION_PSERIES_OOL(vec, label) \ - .globl label##_relon_pSeries; \ -label##_relon_pSeries: \ EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, vec); \ - EXCEPTION_RELON_PROLOG_PSERIES_1(label##_common, EXC_STD) + EXCEPTION_RELON_PROLOG_PSERIES_1(label, EXC_STD) #define STD_RELON_EXCEPTION_HV(loc, vec, label) \ - . = loc; \ - .globl label##_relon_hv; \ -label##_relon_hv: \ /* No guest interrupts come through here */ \ SET_SCRATCH0(r13); /* save r13 */ \ - EXCEPTION_RELON_PROLOG_PSERIES(PACA_EXGEN, label##_common, \ - EXC_HV, NOTEST, vec) + EXCEPTION_RELON_PROLOG_PSERIES(PACA_EXGEN, label, EXC_HV, NOTEST, vec); #define STD_RELON_EXCEPTION_HV_OOL(vec, label) \ - .globl label##_relon_hv; \ -label##_relon_hv: \ EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, vec); \ - EXCEPTION_RELON_PROLOG_PSERIES_1(label##_common, EXC_HV) + EXCEPTION_RELON_PROLOG_PSERIES_1(label, EXC_HV) /* This associate vector numbers with bits in paca->irq_happened */ #define SOFTEN_VALUE_0x500 PACA_IRQ_EE -#define SOFTEN_VALUE_0x502 PACA_IRQ_EE #define SOFTEN_VALUE_0x900 PACA_IRQ_DEC -#define SOFTEN_VALUE_0x982 PACA_IRQ_DEC +#define SOFTEN_VALUE_0x980 PACA_IRQ_DEC #define SOFTEN_VALUE_0xa00 PACA_IRQ_DBELL #define SOFTEN_VALUE_0xe80 PACA_IRQ_DBELL -#define SOFTEN_VALUE_0xe82 PACA_IRQ_DBELL #define SOFTEN_VALUE_0xe60 PACA_IRQ_HMI -#define SOFTEN_VALUE_0xe62 PACA_IRQ_HMI #define SOFTEN_VALUE_0xea0 PACA_IRQ_EE -#define SOFTEN_VALUE_0xea2 PACA_IRQ_EE #define __SOFTEN_TEST(h, vec) \ lbz r10,PACASOFTIRQEN(r13); \ cmpwi r10,0; \ li r10,SOFTEN_VALUE_##vec; \ beq masked_##h##interrupt + #define _SOFTEN_TEST(h, vec) __SOFTEN_TEST(h, vec) #define SOFTEN_TEST_PR(vec) \ - KVMTEST(vec); \ + KVMTEST(EXC_STD, vec); \ _SOFTEN_TEST(EXC_STD, vec) #define SOFTEN_TEST_HV(vec) \ - KVMTEST(vec); \ + KVMTEST(EXC_HV, vec); \ _SOFTEN_TEST(EXC_HV, vec) +#define KVMTEST_PR(vec) \ + KVMTEST(EXC_STD, vec) + +#define KVMTEST_HV(vec) \ + KVMTEST(EXC_HV, vec) + #define SOFTEN_NOTEST_PR(vec) _SOFTEN_TEST(EXC_STD, vec) #define SOFTEN_NOTEST_HV(vec) _SOFTEN_TEST(EXC_HV, vec) @@ -428,58 +414,47 @@ label##_relon_hv: \ SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_PROLOG_0(PACA_EXGEN); \ __EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec); \ - EXCEPTION_PROLOG_PSERIES_1(label##_common, h); + EXCEPTION_PROLOG_PSERIES_1(label, h); #define _MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra) \ __MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra) #define MASKABLE_EXCEPTION_PSERIES(loc, vec, label) \ - . = loc; \ - .globl label##_pSeries; \ -label##_pSeries: \ _MASKABLE_EXCEPTION_PSERIES(vec, label, \ EXC_STD, SOFTEN_TEST_PR) +#define MASKABLE_EXCEPTION_PSERIES_OOL(vec, label) \ + EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_PR, vec); \ + EXCEPTION_PROLOG_PSERIES_1(label, EXC_STD) + #define MASKABLE_EXCEPTION_HV(loc, vec, label) \ - . = loc; \ - .globl label##_hv; \ -label##_hv: \ _MASKABLE_EXCEPTION_PSERIES(vec, label, \ EXC_HV, SOFTEN_TEST_HV) #define MASKABLE_EXCEPTION_HV_OOL(vec, label) \ - .globl label##_hv; \ -label##_hv: \ EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_HV, vec); \ - EXCEPTION_PROLOG_PSERIES_1(label##_common, EXC_HV); + EXCEPTION_PROLOG_PSERIES_1(label, EXC_HV) #define __MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) \ SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_PROLOG_0(PACA_EXGEN); \ - __EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec); \ - EXCEPTION_RELON_PROLOG_PSERIES_1(label##_common, h); -#define _MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) \ + __EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec); \ + EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) + +#define _MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) \ __MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) #define MASKABLE_RELON_EXCEPTION_PSERIES(loc, vec, label) \ - . = loc; \ - .globl label##_relon_pSeries; \ -label##_relon_pSeries: \ _MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, \ EXC_STD, SOFTEN_NOTEST_PR) #define MASKABLE_RELON_EXCEPTION_HV(loc, vec, label) \ - . = loc; \ - .globl label##_relon_hv; \ -label##_relon_hv: \ _MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, \ EXC_HV, SOFTEN_NOTEST_HV) #define MASKABLE_RELON_EXCEPTION_HV_OOL(vec, label) \ - .globl label##_relon_hv; \ -label##_relon_hv: \ EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_NOTEST_HV, vec); \ - EXCEPTION_PROLOG_PSERIES_1(label##_common, EXC_HV); + EXCEPTION_PROLOG_PSERIES_1(label, EXC_HV) /* * Our exception common code can be passed various "additions" @@ -505,9 +480,6 @@ BEGIN_FTR_SECTION \ END_FTR_SECTION_IFSET(CPU_FTR_CTRL) #define EXCEPTION_COMMON(trap, label, hdlr, ret, additions) \ - .align 7; \ - .globl label##_common; \ -label##_common: \ EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN); \ /* Volatile regs are potentially clobbered here */ \ additions; \ |