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powerpc/64s/exception: Add INT_COMMON gas macro to generate common exception code

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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
This commit is contained in:
Nicholas Piggin 2019-08-02 20:56:54 +10:00 committed by Michael Ellerman
parent 9a9c739aa8
commit bcbceed40a
1 changed files with 32 additions and 20 deletions
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52
arch/powerpc/kernel/exceptions-64s.S
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@ -463,6 +463,18 @@ END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66); \
kuap_save_amr_and_lock r9, r10, cr1; \ kuap_save_amr_and_lock r9, r10, cr1; \
EXCEPTION_PROLOG_COMMON_2(area, trap) 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 * Restore all registers including H/SRR0/1 saved in a stack frame of a
* standard exception. * standard exception.
@ -658,7 +670,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP)
#define EXC_COMMON(name, realvec, hdlr) \ #define EXC_COMMON(name, realvec, hdlr) \
EXC_COMMON_BEGIN(name); \ EXC_COMMON_BEGIN(name); \
EXCEPTION_COMMON(PACA_EXGEN, realvec); \ INT_COMMON realvec, PACA_EXGEN, 1, 1 ; \
bl save_nvgprs; \ bl save_nvgprs; \
RECONCILE_IRQ_STATE(r10, r11); \ RECONCILE_IRQ_STATE(r10, r11); \
addi r3,r1,STACK_FRAME_OVERHEAD; \ 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) \ #define EXC_COMMON_ASYNC(name, realvec, hdlr) \
EXC_COMMON_BEGIN(name); \ EXC_COMMON_BEGIN(name); \
EXCEPTION_COMMON(PACA_EXGEN, realvec); \ INT_COMMON realvec, PACA_EXGEN, 1, 1 ; \
FINISH_NAP; \ FINISH_NAP; \
RECONCILE_IRQ_STATE(r10, r11); \ RECONCILE_IRQ_STATE(r10, r11); \
RUNLATCH_ON; \ RUNLATCH_ON; \
@ -852,7 +864,7 @@ EXC_COMMON_BEGIN(system_reset_common)
mr r10,r1 mr r10,r1
ld r1,PACA_NMI_EMERG_SP(r13) ld r1,PACA_NMI_EMERG_SP(r13)
subi r1,r1,INT_FRAME_SIZE subi r1,r1,INT_FRAME_SIZE
EXCEPTION_COMMON_STACK(PACA_EXNMI, 0x100) INT_COMMON 0x100, PACA_EXNMI, 0, 1
bl save_nvgprs bl save_nvgprs
/* /*
* Set IRQS_ALL_DISABLED unconditionally so arch_irqs_disabled does * 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 */ bgt cr1,unrecoverable_mce /* Check if we hit limit of 4 */
subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */ 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 */ /* 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) ld r3,PACA_EXMC+EX_DAR(r13)
lwz r4,PACA_EXMC+EX_DSISR(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 * Machine check is different because we use a different
* save area: PACA_EXMC instead of PACA_EXGEN. * save area: PACA_EXMC instead of PACA_EXGEN.
*/ */
EXCEPTION_COMMON(PACA_EXMC, 0x200) INT_COMMON 0x200, PACA_EXMC, 1, 1
FINISH_NAP FINISH_NAP
RECONCILE_IRQ_STATE(r10, r11) RECONCILE_IRQ_STATE(r10, r11)
ld r3,PACA_EXMC+EX_DAR(r13) ld r3,PACA_EXMC+EX_DAR(r13)
@ -1156,7 +1167,7 @@ EXC_COMMON_BEGIN(data_access_common)
* r9 - r13 are saved in paca->exgen. * r9 - r13 are saved in paca->exgen.
* EX_DAR and EX_DSISR have saved DAR/DSISR * 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) RECONCILE_IRQ_STATE(r10, r11)
ld r12,_MSR(r1) ld r12,_MSR(r1)
ld r3,PACA_EXGEN+EX_DAR(r13) 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) EXC_VIRT_END(data_access_slb, 0x4380, 0x80)
INT_KVM_HANDLER 0x380, EXC_STD, PACA_EXSLB, 1 INT_KVM_HANDLER 0x380, EXC_STD, PACA_EXSLB, 1
EXC_COMMON_BEGIN(data_access_slb_common) 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) ld r4,PACA_EXSLB+EX_DAR(r13)
std r4,_DAR(r1) std r4,_DAR(r1)
addi r3,r1,STACK_FRAME_OVERHEAD addi r3,r1,STACK_FRAME_OVERHEAD
@ -1212,7 +1223,7 @@ EXC_VIRT_BEGIN(instruction_access, 0x4400, 0x80)
EXC_VIRT_END(instruction_access, 0x4400, 0x80) EXC_VIRT_END(instruction_access, 0x4400, 0x80)
INT_KVM_HANDLER 0x400, EXC_STD, PACA_EXGEN, 0 INT_KVM_HANDLER 0x400, EXC_STD, PACA_EXGEN, 0
EXC_COMMON_BEGIN(instruction_access_common) EXC_COMMON_BEGIN(instruction_access_common)
EXCEPTION_COMMON(PACA_EXGEN, 0x400) INT_COMMON 0x400, PACA_EXGEN, 1, 1
RECONCILE_IRQ_STATE(r10, r11) RECONCILE_IRQ_STATE(r10, r11)
ld r12,_MSR(r1) ld r12,_MSR(r1)
ld r3,_NIP(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) EXC_VIRT_END(instruction_access_slb, 0x4480, 0x80)
INT_KVM_HANDLER 0x480, EXC_STD, PACA_EXSLB, 0 INT_KVM_HANDLER 0x480, EXC_STD, PACA_EXSLB, 0
EXC_COMMON_BEGIN(instruction_access_slb_common) EXC_COMMON_BEGIN(instruction_access_slb_common)
EXCEPTION_COMMON(PACA_EXSLB, 0x480) INT_COMMON 0x480, PACA_EXSLB, 1, 1
ld r4,_NIP(r1) ld r4,_NIP(r1)
addi r3,r1,STACK_FRAME_OVERHEAD addi r3,r1,STACK_FRAME_OVERHEAD
BEGIN_MMU_FTR_SECTION BEGIN_MMU_FTR_SECTION
@ -1277,7 +1288,7 @@ EXC_VIRT_BEGIN(alignment, 0x4600, 0x100)
EXC_VIRT_END(alignment, 0x4600, 0x100) EXC_VIRT_END(alignment, 0x4600, 0x100)
INT_KVM_HANDLER 0x600, EXC_STD, PACA_EXGEN, 0 INT_KVM_HANDLER 0x600, EXC_STD, PACA_EXGEN, 0
EXC_COMMON_BEGIN(alignment_common) EXC_COMMON_BEGIN(alignment_common)
EXCEPTION_COMMON(PACA_EXGEN, 0x600) INT_COMMON 0x600, PACA_EXGEN, 1, 1
ld r3,PACA_EXGEN+EX_DAR(r13) ld r3,PACA_EXGEN+EX_DAR(r13)
lwz r4,PACA_EXGEN+EX_DSISR(r13) lwz r4,PACA_EXGEN+EX_DSISR(r13)
std r3,_DAR(r1) std r3,_DAR(r1)
@ -1323,7 +1334,7 @@ EXC_COMMON_BEGIN(program_check_common)
subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */ subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */
b 3f /* Jump into the macro !! */ b 3f /* Jump into the macro !! */
2: 2:
EXCEPTION_COMMON(PACA_EXGEN, 0x700) INT_COMMON 0x700, PACA_EXGEN, 1, 1
bl save_nvgprs bl save_nvgprs
RECONCILE_IRQ_STATE(r10, r11) RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD addi r3,r1,STACK_FRAME_OVERHEAD
@ -1339,7 +1350,7 @@ EXC_VIRT_BEGIN(fp_unavailable, 0x4800, 0x100)
EXC_VIRT_END(fp_unavailable, 0x4800, 0x100) EXC_VIRT_END(fp_unavailable, 0x4800, 0x100)
INT_KVM_HANDLER 0x800, EXC_STD, PACA_EXGEN, 0 INT_KVM_HANDLER 0x800, EXC_STD, PACA_EXGEN, 0
EXC_COMMON_BEGIN(fp_unavailable_common) 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 */ bne 1f /* if from user, just load it up */
bl save_nvgprs bl save_nvgprs
RECONCILE_IRQ_STATE(r10, r11) 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) EXC_VIRT_END(h_data_storage, 0x4e00, 0x20)
INT_KVM_HANDLER 0xe00, EXC_HV, PACA_EXGEN, 1 INT_KVM_HANDLER 0xe00, EXC_HV, PACA_EXGEN, 1
EXC_COMMON_BEGIN(h_data_storage_common) EXC_COMMON_BEGIN(h_data_storage_common)
EXCEPTION_COMMON(PACA_EXGEN, 0xe00) INT_COMMON 0xe00, PACA_EXGEN, 1, 1
bl save_nvgprs bl save_nvgprs
RECONCILE_IRQ_STATE(r10, r11) RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD addi r3,r1,STACK_FRAME_OVERHEAD
@ -1609,9 +1620,10 @@ EXC_COMMON_BEGIN(hmi_exception_early_common)
mr r10,r1 /* Save r1 */ mr r10,r1 /* Save r1 */
ld r1,PACAEMERGSP(r13) /* Use emergency stack for realmode */ ld r1,PACAEMERGSP(r13) /* Use emergency stack for realmode */
subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */ 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 */ /* 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 addi r3,r1,STACK_FRAME_OVERHEAD
bl hmi_exception_realmode bl hmi_exception_realmode
cmpdi cr0,r3,0 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 INT_HANDLER hmi_exception, 0xe60, hsrr=EXC_HV, bitmask=IRQS_DISABLED, kvm=1
EXC_COMMON_BEGIN(hmi_exception_common) EXC_COMMON_BEGIN(hmi_exception_common)
EXCEPTION_COMMON(PACA_EXGEN, 0xe60) INT_COMMON 0xe60, PACA_EXGEN, 1, 1
FINISH_NAP FINISH_NAP
bl save_nvgprs bl save_nvgprs
RECONCILE_IRQ_STATE(r10, r11) RECONCILE_IRQ_STATE(r10, r11)
@ -1687,7 +1699,7 @@ EXC_VIRT_BEGIN(altivec_unavailable, 0x4f20, 0x20)
EXC_VIRT_END(altivec_unavailable, 0x4f20, 0x20) EXC_VIRT_END(altivec_unavailable, 0x4f20, 0x20)
INT_KVM_HANDLER 0xf20, EXC_STD, PACA_EXGEN, 0 INT_KVM_HANDLER 0xf20, EXC_STD, PACA_EXGEN, 0
EXC_COMMON_BEGIN(altivec_unavailable_common) EXC_COMMON_BEGIN(altivec_unavailable_common)
EXCEPTION_COMMON(PACA_EXGEN, 0xf20) INT_COMMON 0xf20, PACA_EXGEN, 1, 1
#ifdef CONFIG_ALTIVEC #ifdef CONFIG_ALTIVEC
BEGIN_FTR_SECTION BEGIN_FTR_SECTION
beq 1f beq 1f
@ -1728,7 +1740,7 @@ EXC_VIRT_BEGIN(vsx_unavailable, 0x4f40, 0x20)
EXC_VIRT_END(vsx_unavailable, 0x4f40, 0x20) EXC_VIRT_END(vsx_unavailable, 0x4f40, 0x20)
INT_KVM_HANDLER 0xf40, EXC_STD, PACA_EXGEN, 0 INT_KVM_HANDLER 0xf40, EXC_STD, PACA_EXGEN, 0
EXC_COMMON_BEGIN(vsx_unavailable_common) EXC_COMMON_BEGIN(vsx_unavailable_common)
EXCEPTION_COMMON(PACA_EXGEN, 0xf40) INT_COMMON 0xf40, PACA_EXGEN, 1, 1
#ifdef CONFIG_VSX #ifdef CONFIG_VSX
BEGIN_FTR_SECTION BEGIN_FTR_SECTION
beq 1f beq 1f
@ -1979,7 +1991,7 @@ EXC_COMMON_BEGIN(soft_nmi_common)
mr r10,r1 mr r10,r1
ld r1,PACAEMERGSP(r13) ld r1,PACAEMERGSP(r13)
subi r1,r1,INT_FRAME_SIZE subi r1,r1,INT_FRAME_SIZE
EXCEPTION_COMMON_STACK(PACA_EXGEN, 0x900) INT_COMMON 0x900, PACA_EXGEN, 0, 1
bl save_nvgprs bl save_nvgprs
RECONCILE_IRQ_STATE(r10, r11) RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD addi r3,r1,STACK_FRAME_OVERHEAD