diff options
Diffstat (limited to 'arch/powerpc/kernel/exceptions-64s.S')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 77 |
1 files changed, 29 insertions, 48 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 0a0399c2af11..7716cebf4b8e 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -96,7 +96,6 @@ __start_interrupts: .globl system_reset_pSeries; system_reset_pSeries: - HMT_MEDIUM_PPR_DISCARD SET_SCRATCH0(r13) #ifdef CONFIG_PPC_P7_NAP BEGIN_FTR_SECTION @@ -164,7 +163,6 @@ machine_check_pSeries_1: * some code path might still want to branch into the original * vector */ - HMT_MEDIUM_PPR_DISCARD SET_SCRATCH0(r13) /* save r13 */ #ifdef CONFIG_PPC_P7_NAP BEGIN_FTR_SECTION @@ -199,7 +197,6 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE) . = 0x300 .globl data_access_pSeries data_access_pSeries: - HMT_MEDIUM_PPR_DISCARD SET_SCRATCH0(r13) EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, data_access_common, EXC_STD, KVMTEST, 0x300) @@ -207,7 +204,6 @@ data_access_pSeries: . = 0x380 .globl data_access_slb_pSeries data_access_slb_pSeries: - HMT_MEDIUM_PPR_DISCARD SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXSLB) EXCEPTION_PROLOG_1(PACA_EXSLB, KVMTEST, 0x380) @@ -234,15 +230,14 @@ data_access_slb_pSeries: bctr #endif - STD_EXCEPTION_PSERIES(0x400, 0x400, instruction_access) + STD_EXCEPTION_PSERIES(0x400, instruction_access) . = 0x480 .globl instruction_access_slb_pSeries instruction_access_slb_pSeries: - HMT_MEDIUM_PPR_DISCARD SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXSLB) - EXCEPTION_PROLOG_1(PACA_EXSLB, KVMTEST_PR, 0x480) + EXCEPTION_PROLOG_1(PACA_EXSLB, KVMTEST, 0x480) std r3,PACA_EXSLB+EX_R3(r13) mfspr r3,SPRN_SRR0 /* SRR0 is faulting address */ #ifdef __DISABLED__ @@ -269,25 +264,24 @@ instruction_access_slb_pSeries: .globl hardware_interrupt_hv; hardware_interrupt_pSeries: hardware_interrupt_hv: - HMT_MEDIUM_PPR_DISCARD BEGIN_FTR_SECTION _MASKABLE_EXCEPTION_PSERIES(0x502, hardware_interrupt, EXC_HV, SOFTEN_TEST_HV) KVM_HANDLER(PACA_EXGEN, EXC_HV, 0x502) FTR_SECTION_ELSE _MASKABLE_EXCEPTION_PSERIES(0x500, hardware_interrupt, - EXC_STD, SOFTEN_TEST_HV_201) + EXC_STD, SOFTEN_TEST_PR) KVM_HANDLER(PACA_EXGEN, EXC_STD, 0x500) ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206) - STD_EXCEPTION_PSERIES(0x600, 0x600, alignment) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0x600) + STD_EXCEPTION_PSERIES(0x600, alignment) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0x600) - STD_EXCEPTION_PSERIES(0x700, 0x700, program_check) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0x700) + STD_EXCEPTION_PSERIES(0x700, program_check) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0x700) - STD_EXCEPTION_PSERIES(0x800, 0x800, fp_unavailable) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0x800) + STD_EXCEPTION_PSERIES(0x800, fp_unavailable) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0x800) . = 0x900 .globl decrementer_pSeries @@ -297,10 +291,10 @@ decrementer_pSeries: STD_EXCEPTION_HV(0x980, 0x982, hdecrementer) MASKABLE_EXCEPTION_PSERIES(0xa00, 0xa00, doorbell_super) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xa00) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xa00) - STD_EXCEPTION_PSERIES(0xb00, 0xb00, trap_0b) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xb00) + STD_EXCEPTION_PSERIES(0xb00, trap_0b) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xb00) . = 0xc00 .globl system_call_pSeries @@ -331,8 +325,8 @@ system_call_pSeries: SYSCALL_PSERIES_3 KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xc00) - STD_EXCEPTION_PSERIES(0xd00, 0xd00, single_step) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xd00) + STD_EXCEPTION_PSERIES(0xd00, single_step) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xd00) /* At 0xe??? we have a bunch of hypervisor exceptions, we branch * out of line to handle them @@ -407,13 +401,12 @@ hv_facility_unavailable_trampoline: KVM_HANDLER_SKIP(PACA_EXGEN, EXC_HV, 0x1202) #endif /* CONFIG_CBE_RAS */ - STD_EXCEPTION_PSERIES(0x1300, 0x1300, instruction_breakpoint) - KVM_HANDLER_PR_SKIP(PACA_EXGEN, EXC_STD, 0x1300) + STD_EXCEPTION_PSERIES(0x1300, instruction_breakpoint) + KVM_HANDLER_SKIP(PACA_EXGEN, EXC_STD, 0x1300) . = 0x1500 .global denorm_exception_hv denorm_exception_hv: - HMT_MEDIUM_PPR_DISCARD mtspr SPRN_SPRG_HSCRATCH0,r13 EXCEPTION_PROLOG_0(PACA_EXGEN) EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0x1500) @@ -435,8 +428,8 @@ denorm_exception_hv: KVM_HANDLER_SKIP(PACA_EXGEN, EXC_HV, 0x1602) #endif /* CONFIG_CBE_RAS */ - STD_EXCEPTION_PSERIES(0x1700, 0x1700, altivec_assist) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0x1700) + STD_EXCEPTION_PSERIES(0x1700, altivec_assist) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0x1700) #ifdef CONFIG_CBE_RAS STD_EXCEPTION_HV(0x1800, 0x1802, cbe_thermal) @@ -527,7 +520,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) machine_check_pSeries: .globl machine_check_fwnmi machine_check_fwnmi: - HMT_MEDIUM_PPR_DISCARD SET_SCRATCH0(r13) /* save r13 */ EXCEPTION_PROLOG_0(PACA_EXMC) machine_check_pSeries_0: @@ -536,9 +528,9 @@ machine_check_pSeries_0: KVM_HANDLER_SKIP(PACA_EXMC, EXC_STD, 0x200) KVM_HANDLER_SKIP(PACA_EXGEN, EXC_STD, 0x300) KVM_HANDLER_SKIP(PACA_EXSLB, EXC_STD, 0x380) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0x400) - KVM_HANDLER_PR(PACA_EXSLB, EXC_STD, 0x480) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0x900) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0x400) + KVM_HANDLER(PACA_EXSLB, EXC_STD, 0x480) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0x900) KVM_HANDLER(PACA_EXGEN, EXC_HV, 0x982) #ifdef CONFIG_PPC_DENORMALISATION @@ -621,13 +613,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR) /* moved from 0xf00 */ STD_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf00) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xf00) STD_EXCEPTION_PSERIES_OOL(0xf20, altivec_unavailable) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf20) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xf20) STD_EXCEPTION_PSERIES_OOL(0xf40, vsx_unavailable) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf40) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xf40) STD_EXCEPTION_PSERIES_OOL(0xf60, facility_unavailable) - KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf60) + KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xf60) STD_EXCEPTION_HV_OOL(0xf82, facility_unavailable) KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xf82) @@ -711,7 +703,6 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE) .globl system_reset_fwnmi .align 7 system_reset_fwnmi: - HMT_MEDIUM_PPR_DISCARD SET_SCRATCH0(r13) /* save r13 */ EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common, EXC_STD, NOTEST, 0x100) @@ -1556,29 +1547,19 @@ do_hash_page: lwz r0,TI_PREEMPT(r11) /* If we're in an "NMI" */ andis. r0,r0,NMI_MASK@h /* (i.e. an irq when soft-disabled) */ bne 77f /* then don't call hash_page now */ - /* - * We need to set the _PAGE_USER bit if MSR_PR is set or if we are - * accessing a userspace segment (even from the kernel). We assume - * kernel addresses always have the high bit set. - */ - rlwinm r4,r4,32-25+9,31-9,31-9 /* DSISR_STORE -> _PAGE_RW */ - rotldi r0,r3,15 /* Move high bit into MSR_PR posn */ - orc r0,r12,r0 /* MSR_PR | ~high_bit */ - rlwimi r4,r0,32-13,30,30 /* becomes _PAGE_USER access bit */ - ori r4,r4,1 /* add _PAGE_PRESENT */ - rlwimi r4,r5,22+2,31-2,31-2 /* Set _PAGE_EXEC if trap is 0x400 */ /* * r3 contains the faulting address - * r4 contains the required access permissions + * r4 msr * r5 contains the trap number * r6 contains dsisr * * at return r3 = 0 for success, 1 for page fault, negative for error */ + mr r4,r12 ld r6,_DSISR(r1) - bl hash_page /* build HPTE if possible */ - cmpdi r3,0 /* see if hash_page succeeded */ + bl __hash_page /* build HPTE if possible */ + cmpdi r3,0 /* see if __hash_page succeeded */ /* Success */ beq fast_exc_return_irq /* Return from exception on success */ |