diff options
author | Nicholas Piggin <npiggin@gmail.com> | 2019-08-02 12:56:54 +0200 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-30 03:14:57 +0200 |
commit | bcbceed40a8c355b48678d90c5c407dfca811f0e (patch) | |
tree | 8d296018a561c8c2a36ead03a09bd560ebca51f0 /arch/powerpc/kernel/exceptions-64s.S | |
parent | powerpc/64s/exception: Merge EXCEPTION_PROLOG_COMMON_2/3 (diff) | |
download | linux-bcbceed40a8c355b48678d90c5c407dfca811f0e.tar.xz linux-bcbceed40a8c355b48678d90c5c407dfca811f0e.zip |
powerpc/64s/exception: Add INT_COMMON gas macro to generate common exception code
No generated code change except BUG line number constants.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190802105709.27696-30-npiggin@gmail.com
Diffstat (limited to '')
-rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 52 |
1 files changed, 32 insertions, 20 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 0643ae57badc..7829a6ad99aa 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -463,6 +463,18 @@ END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66); \ kuap_save_amr_and_lock r9, r10, cr1; \ EXCEPTION_PROLOG_COMMON_2(area, trap) +.macro INT_COMMON vec, area, stack, kaup + .if \stack + EXCEPTION_COMMON(\area, \vec) + .else + EXCEPTION_PROLOG_COMMON_1() + .if \kaup + kuap_save_amr_and_lock r9, r10, cr1 + .endif + EXCEPTION_PROLOG_COMMON_2(\area, \vec) + .endif +.endm + /* * Restore all registers including H/SRR0/1 saved in a stack frame of a * standard exception. @@ -658,7 +670,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP) #define EXC_COMMON(name, realvec, hdlr) \ EXC_COMMON_BEGIN(name); \ - EXCEPTION_COMMON(PACA_EXGEN, realvec); \ + INT_COMMON realvec, PACA_EXGEN, 1, 1 ; \ bl save_nvgprs; \ RECONCILE_IRQ_STATE(r10, r11); \ addi r3,r1,STACK_FRAME_OVERHEAD; \ @@ -671,7 +683,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP) */ #define EXC_COMMON_ASYNC(name, realvec, hdlr) \ EXC_COMMON_BEGIN(name); \ - EXCEPTION_COMMON(PACA_EXGEN, realvec); \ + INT_COMMON realvec, PACA_EXGEN, 1, 1 ; \ FINISH_NAP; \ RECONCILE_IRQ_STATE(r10, r11); \ RUNLATCH_ON; \ @@ -852,7 +864,7 @@ EXC_COMMON_BEGIN(system_reset_common) mr r10,r1 ld r1,PACA_NMI_EMERG_SP(r13) subi r1,r1,INT_FRAME_SIZE - EXCEPTION_COMMON_STACK(PACA_EXNMI, 0x100) + INT_COMMON 0x100, PACA_EXNMI, 0, 1 bl save_nvgprs /* * Set IRQS_ALL_DISABLED unconditionally so arch_irqs_disabled does @@ -962,9 +974,8 @@ EXC_COMMON_BEGIN(machine_check_early_common) bgt cr1,unrecoverable_mce /* Check if we hit limit of 4 */ subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */ - EXCEPTION_PROLOG_COMMON_1() /* We don't touch AMR here, we never go to virtual mode */ - EXCEPTION_PROLOG_COMMON_2(PACA_EXMC, 0x200) + INT_COMMON 0x200, PACA_EXMC, 0, 0 ld r3,PACA_EXMC+EX_DAR(r13) lwz r4,PACA_EXMC+EX_DSISR(r13) @@ -1064,7 +1075,7 @@ EXC_COMMON_BEGIN(machine_check_common) * Machine check is different because we use a different * save area: PACA_EXMC instead of PACA_EXGEN. */ - EXCEPTION_COMMON(PACA_EXMC, 0x200) + INT_COMMON 0x200, PACA_EXMC, 1, 1 FINISH_NAP RECONCILE_IRQ_STATE(r10, r11) ld r3,PACA_EXMC+EX_DAR(r13) @@ -1156,7 +1167,7 @@ EXC_COMMON_BEGIN(data_access_common) * r9 - r13 are saved in paca->exgen. * EX_DAR and EX_DSISR have saved DAR/DSISR */ - EXCEPTION_COMMON(PACA_EXGEN, 0x300) + INT_COMMON 0x300, PACA_EXGEN, 1, 1 RECONCILE_IRQ_STATE(r10, r11) ld r12,_MSR(r1) ld r3,PACA_EXGEN+EX_DAR(r13) @@ -1179,7 +1190,7 @@ EXC_VIRT_BEGIN(data_access_slb, 0x4380, 0x80) EXC_VIRT_END(data_access_slb, 0x4380, 0x80) INT_KVM_HANDLER 0x380, EXC_STD, PACA_EXSLB, 1 EXC_COMMON_BEGIN(data_access_slb_common) - EXCEPTION_COMMON(PACA_EXSLB, 0x380) + INT_COMMON 0x380, PACA_EXSLB, 1, 1 ld r4,PACA_EXSLB+EX_DAR(r13) std r4,_DAR(r1) addi r3,r1,STACK_FRAME_OVERHEAD @@ -1212,7 +1223,7 @@ EXC_VIRT_BEGIN(instruction_access, 0x4400, 0x80) EXC_VIRT_END(instruction_access, 0x4400, 0x80) INT_KVM_HANDLER 0x400, EXC_STD, PACA_EXGEN, 0 EXC_COMMON_BEGIN(instruction_access_common) - EXCEPTION_COMMON(PACA_EXGEN, 0x400) + INT_COMMON 0x400, PACA_EXGEN, 1, 1 RECONCILE_IRQ_STATE(r10, r11) ld r12,_MSR(r1) ld r3,_NIP(r1) @@ -1235,7 +1246,7 @@ EXC_VIRT_BEGIN(instruction_access_slb, 0x4480, 0x80) EXC_VIRT_END(instruction_access_slb, 0x4480, 0x80) INT_KVM_HANDLER 0x480, EXC_STD, PACA_EXSLB, 0 EXC_COMMON_BEGIN(instruction_access_slb_common) - EXCEPTION_COMMON(PACA_EXSLB, 0x480) + INT_COMMON 0x480, PACA_EXSLB, 1, 1 ld r4,_NIP(r1) addi r3,r1,STACK_FRAME_OVERHEAD BEGIN_MMU_FTR_SECTION @@ -1277,7 +1288,7 @@ EXC_VIRT_BEGIN(alignment, 0x4600, 0x100) EXC_VIRT_END(alignment, 0x4600, 0x100) INT_KVM_HANDLER 0x600, EXC_STD, PACA_EXGEN, 0 EXC_COMMON_BEGIN(alignment_common) - EXCEPTION_COMMON(PACA_EXGEN, 0x600) + INT_COMMON 0x600, PACA_EXGEN, 1, 1 ld r3,PACA_EXGEN+EX_DAR(r13) lwz r4,PACA_EXGEN+EX_DSISR(r13) std r3,_DAR(r1) @@ -1323,7 +1334,7 @@ EXC_COMMON_BEGIN(program_check_common) subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */ b 3f /* Jump into the macro !! */ 2: - EXCEPTION_COMMON(PACA_EXGEN, 0x700) + INT_COMMON 0x700, PACA_EXGEN, 1, 1 bl save_nvgprs RECONCILE_IRQ_STATE(r10, r11) addi r3,r1,STACK_FRAME_OVERHEAD @@ -1339,7 +1350,7 @@ EXC_VIRT_BEGIN(fp_unavailable, 0x4800, 0x100) EXC_VIRT_END(fp_unavailable, 0x4800, 0x100) INT_KVM_HANDLER 0x800, EXC_STD, PACA_EXGEN, 0 EXC_COMMON_BEGIN(fp_unavailable_common) - EXCEPTION_COMMON(PACA_EXGEN, 0x800) + INT_COMMON 0x800, PACA_EXGEN, 1, 1 bne 1f /* if from user, just load it up */ bl save_nvgprs RECONCILE_IRQ_STATE(r10, r11) @@ -1555,7 +1566,7 @@ EXC_VIRT_BEGIN(h_data_storage, 0x4e00, 0x20) EXC_VIRT_END(h_data_storage, 0x4e00, 0x20) INT_KVM_HANDLER 0xe00, EXC_HV, PACA_EXGEN, 1 EXC_COMMON_BEGIN(h_data_storage_common) - EXCEPTION_COMMON(PACA_EXGEN, 0xe00) + INT_COMMON 0xe00, PACA_EXGEN, 1, 1 bl save_nvgprs RECONCILE_IRQ_STATE(r10, r11) addi r3,r1,STACK_FRAME_OVERHEAD @@ -1609,9 +1620,10 @@ EXC_COMMON_BEGIN(hmi_exception_early_common) mr r10,r1 /* Save r1 */ ld r1,PACAEMERGSP(r13) /* Use emergency stack for realmode */ subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */ - EXCEPTION_PROLOG_COMMON_1() + /* We don't touch AMR here, we never go to virtual mode */ - EXCEPTION_PROLOG_COMMON_2(PACA_EXGEN, 0xe60) + INT_COMMON 0xe60, PACA_EXGEN, 0, 0 + addi r3,r1,STACK_FRAME_OVERHEAD bl hmi_exception_realmode cmpdi cr0,r3,0 @@ -1629,7 +1641,7 @@ EXC_COMMON_BEGIN(hmi_exception_early_common) INT_HANDLER hmi_exception, 0xe60, hsrr=EXC_HV, bitmask=IRQS_DISABLED, kvm=1 EXC_COMMON_BEGIN(hmi_exception_common) - EXCEPTION_COMMON(PACA_EXGEN, 0xe60) + INT_COMMON 0xe60, PACA_EXGEN, 1, 1 FINISH_NAP bl save_nvgprs RECONCILE_IRQ_STATE(r10, r11) @@ -1687,7 +1699,7 @@ EXC_VIRT_BEGIN(altivec_unavailable, 0x4f20, 0x20) EXC_VIRT_END(altivec_unavailable, 0x4f20, 0x20) INT_KVM_HANDLER 0xf20, EXC_STD, PACA_EXGEN, 0 EXC_COMMON_BEGIN(altivec_unavailable_common) - EXCEPTION_COMMON(PACA_EXGEN, 0xf20) + INT_COMMON 0xf20, PACA_EXGEN, 1, 1 #ifdef CONFIG_ALTIVEC BEGIN_FTR_SECTION beq 1f @@ -1728,7 +1740,7 @@ EXC_VIRT_BEGIN(vsx_unavailable, 0x4f40, 0x20) EXC_VIRT_END(vsx_unavailable, 0x4f40, 0x20) INT_KVM_HANDLER 0xf40, EXC_STD, PACA_EXGEN, 0 EXC_COMMON_BEGIN(vsx_unavailable_common) - EXCEPTION_COMMON(PACA_EXGEN, 0xf40) + INT_COMMON 0xf40, PACA_EXGEN, 1, 1 #ifdef CONFIG_VSX BEGIN_FTR_SECTION beq 1f @@ -1979,7 +1991,7 @@ EXC_COMMON_BEGIN(soft_nmi_common) mr r10,r1 ld r1,PACAEMERGSP(r13) subi r1,r1,INT_FRAME_SIZE - EXCEPTION_COMMON_STACK(PACA_EXGEN, 0x900) + INT_COMMON 0x900, PACA_EXGEN, 0, 1 bl save_nvgprs RECONCILE_IRQ_STATE(r10, r11) addi r3,r1,STACK_FRAME_OVERHEAD |