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bcm64: use MOVP instruction for saving and restoring registers

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This commit is contained in:
cinap_lenrek 2019-05-09 11:11:45 +02:00
parent 1c0427e6dd
commit 9d790238f2
2 changed files with 85 additions and 182 deletions
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1
sys/src/9/bcm64/fns.h
View file

@ -17,7 +17,6 @@ extern void noteret(void);
extern void returnto(void*);
extern void fpsaveregs(void*);
extern void fploadregs(void*);
extern void magic(void);
extern void setttbr(uintptr pa);
extern uintptr getfar(void);

266
sys/src/9/bcm64/l.s
View file

@ -334,17 +334,6 @@ TEXT setttbr(SB), 1, $-4
B cacheiinv(SB)
TEXT magic(SB), 1, $-4
DSB $SY
ISB $SY
DSB $SY
ISB $SY
DSB $SY
ISB $SY
DSB $SY
ISB $SY
RETURN
/*
* TLB maintenance operations.
* these broadcast to all cpu's in the cluser
@ -421,10 +410,8 @@ TEXT vsys0(SB), 1, $-4
CMPW $0x15, R17 // SVC trap?
BNE _itsatrap // nope.
MOV R26, 224(RSP) // special
MOV R27, 232(RSP) // special
MOV R28, 240(RSP) // sb
MOV R29, 248(RSP) // special
MOVP R26, R27, 224(RSP)
MOVP R28, R29, 240(RSP)
MRS SP_EL0, R1
MRS ELR_EL1, R2
@ -456,10 +443,8 @@ TEXT forkret(SB), 1, $-4
MSR R2, ELR_EL1
MSR R3, SPSR_EL1
MOV 224(RSP), R26 // special
MOV 232(RSP), R27 // special
MOV 240(RSP), R28 // sb
MOV 248(RSP), R29 // special
MOVP 224(RSP), R26, R27
MOVP 240(RSP), R28, R29
MOV 256(RSP), R30 // link
@ -468,38 +453,24 @@ TEXT forkret(SB), 1, $-4
TEXT itsatrap<>(SB), 1, $-4
_itsatrap:
MOV R1, 24(RSP)
MOV R2, 32(RSP)
MOV R3, 40(RSP)
MOV R4, 48(RSP)
MOV R5, 56(RSP)
MOV R6, 64(RSP)
MOV R7, 72(RSP)
MOV R8, 80(RSP)
MOV R9, 88(RSP)
MOV R10, 96(RSP)
MOV R11, 104(RSP)
MOV R12, 112(RSP)
MOV R13, 120(RSP)
MOV R14, 128(RSP)
MOV R15, 136(RSP)
MOV R16, 144(RSP)
MOVP R1, R2, 24(RSP)
MOVP R3, R4, 40(RSP)
MOVP R5, R6, 56(RSP)
MOVP R7, R8, 72(RSP)
MOVP R9, R10, 88(RSP)
MOVP R11, R12, 104(RSP)
MOVP R13, R14, 120(RSP)
MOVP R15, R16, 136(RSP)
MOV R18, 160(RSP)
MOV R19, 168(RSP)
MOV R20, 176(RSP)
MOV R21, 184(RSP)
MOV R22, 192(RSP)
MOV R23, 200(RSP)
MOV R24, 208(RSP)
MOV R25, 216(RSP)
MOVP R18, R19, 160(RSP)
MOVP R20, R21, 176(RSP)
MOVP R22, R23, 192(RSP)
MOVP R24, R25, 208(RSP)
// trap/irq/fiq/serr from EL0
TEXT vtrap0(SB), 1, $-4
MOV R26, 224(RSP) // special
MOV R27, 232(RSP) // special
MOV R28, 240(RSP) // sb
MOV R29, 248(RSP) // special
MOVP R26, R27, 224(RSP)
MOVP R28, R29, 240(RSP)
MRS SP_EL0, R1
MRS ELR_EL1, R2
@ -530,38 +501,23 @@ TEXT noteret(SB), 1, $-4
MSR R2, ELR_EL1
MSR R3, SPSR_EL1
MOV 224(RSP), R26 // special
MOV 232(RSP), R27 // special
MOV 240(RSP), R28 // sb
MOV 248(RSP), R29 // special
MOVP 224(RSP), R26, R27
MOVP 240(RSP), R28, R29
_intrreturn:
MOV 16(RSP), R0
MOV 24(RSP), R1
MOV 32(RSP), R2
MOV 40(RSP), R3
MOV 48(RSP), R4
MOV 56(RSP), R5
MOV 64(RSP), R6
MOV 72(RSP), R7
MOV 80(RSP), R8
MOV 88(RSP), R9
MOV 96(RSP), R10
MOV 104(RSP), R11
MOV 112(RSP), R12
MOV 120(RSP), R13
MOV 128(RSP), R14
MOV 136(RSP), R15
MOV 144(RSP), R16
MOV 152(RSP), R17
MOV 160(RSP), R18
MOV 168(RSP), R19
MOV 176(RSP), R20
MOV 184(RSP), R21
MOV 192(RSP), R22
MOV 200(RSP), R23
MOV 208(RSP), R24
MOV 216(RSP), R25
MOVP 16(RSP), R0, R1
MOVP 32(RSP), R2, R3
MOVP 48(RSP), R4, R5
MOVP 64(RSP), R6, R7
MOVP 80(RSP), R8, R9
MOVP 96(RSP), R10, R11
MOVP 112(RSP), R12, R13
MOVP 128(RSP), R14, R15
MOVP 144(RSP), R16, R17
MOVP 160(RSP), R18, R19
MOVP 176(RSP), R20, R21
MOVP 192(RSP), R22, R23
MOVP 208(RSP), R24, R25
MOV 256(RSP), R30 // link
@ -612,32 +568,19 @@ _vsyspatch:
TEXT vtrap(SB), 1, $-4
SUB $TRAPFRAMESIZE, RSP
MOV R0, 16(RSP)
MOV R1, 24(RSP)
MOV R2, 32(RSP)
MOV R3, 40(RSP)
MOV R4, 48(RSP)
MOV R5, 56(RSP)
MOV R6, 64(RSP)
MOV R7, 72(RSP)
MOV R8, 80(RSP)
MOV R9, 88(RSP)
MOV R10, 96(RSP)
MOV R11, 104(RSP)
MOV R12, 112(RSP)
MOV R13, 120(RSP)
MOV R14, 128(RSP)
MOV R15, 136(RSP)
MOV R16, 144(RSP)
MOV R17, 152(RSP)
MOV R18, 160(RSP)
MOV R19, 168(RSP)
MOV R20, 176(RSP)
MOV R21, 184(RSP)
MOV R22, 192(RSP)
MOV R23, 200(RSP)
MOV R24, 208(RSP)
MOV R25, 216(RSP)
MOVP R0, R1, 16(RSP)
MOVP R2, R3, 32(RSP)
MOVP R4, R5, 48(RSP)
MOVP R6, R7, 64(RSP)
MOVP R8, R9, 80(RSP)
MOVP R10, R11, 96(RSP)
MOVP R12, R13, 112(RSP)
MOVP R14, R15, 128(RSP)
MOVP R16, R17, 144(RSP)
MOVP R18, R19, 160(RSP)
MOVP R20, R21, 176(RSP)
MOVP R22, R23, 192(RSP)
MOVP R24, R25, 208(RSP)
MOV R30, 256(RSP) // link
@ -649,32 +592,19 @@ _vtrappatch:
TEXT virq(SB), 1, $-4
SUB $TRAPFRAMESIZE, RSP
MOV R0, 16(RSP)
MOV R1, 24(RSP)
MOV R2, 32(RSP)
MOV R3, 40(RSP)
MOV R4, 48(RSP)
MOV R5, 56(RSP)
MOV R6, 64(RSP)
MOV R7, 72(RSP)
MOV R8, 80(RSP)
MOV R9, 88(RSP)
MOV R10, 96(RSP)
MOV R11, 104(RSP)
MOV R12, 112(RSP)
MOV R13, 120(RSP)
MOV R14, 128(RSP)
MOV R15, 136(RSP)
MOV R16, 144(RSP)
MOV R17, 152(RSP)
MOV R18, 160(RSP)
MOV R19, 168(RSP)
MOV R20, 176(RSP)
MOV R21, 184(RSP)
MOV R22, 192(RSP)
MOV R23, 200(RSP)
MOV R24, 208(RSP)
MOV R25, 216(RSP)
MOVP R0, R1, 16(RSP)
MOVP R2, R3, 32(RSP)
MOVP R4, R5, 48(RSP)
MOVP R6, R7, 64(RSP)
MOVP R8, R9, 80(RSP)
MOVP R10, R11, 96(RSP)
MOVP R12, R13, 112(RSP)
MOVP R14, R15, 128(RSP)
MOVP R16, R17, 144(RSP)
MOVP R18, R19, 160(RSP)
MOVP R20, R21, 176(RSP)
MOVP R22, R23, 192(RSP)
MOVP R24, R25, 208(RSP)
MOV R30, 256(RSP) // link
@ -686,32 +616,19 @@ _virqpatch:
TEXT vfiq(SB), 1, $-4
SUB $TRAPFRAMESIZE, RSP
MOV R0, 16(RSP)
MOV R1, 24(RSP)
MOV R2, 32(RSP)
MOV R3, 40(RSP)
MOV R4, 48(RSP)
MOV R5, 56(RSP)
MOV R6, 64(RSP)
MOV R7, 72(RSP)
MOV R8, 80(RSP)
MOV R9, 88(RSP)
MOV R10, 96(RSP)
MOV R11, 104(RSP)
MOV R12, 112(RSP)
MOV R13, 120(RSP)
MOV R14, 128(RSP)
MOV R15, 136(RSP)
MOV R16, 144(RSP)
MOV R17, 152(RSP)
MOV R18, 160(RSP)
MOV R19, 168(RSP)
MOV R20, 176(RSP)
MOV R21, 184(RSP)
MOV R22, 192(RSP)
MOV R23, 200(RSP)
MOV R24, 208(RSP)
MOV R25, 216(RSP)
MOVP R0, R1, 16(RSP)
MOVP R2, R3, 32(RSP)
MOVP R4, R5, 48(RSP)
MOVP R6, R7, 64(RSP)
MOVP R8, R9, 80(RSP)
MOVP R10, R11, 96(RSP)
MOVP R12, R13, 112(RSP)
MOVP R14, R15, 128(RSP)
MOVP R16, R17, 144(RSP)
MOVP R18, R19, 160(RSP)
MOVP R20, R21, 176(RSP)
MOVP R22, R23, 192(RSP)
MOVP R24, R25, 208(RSP)
MOV R30, 256(RSP) // link
MOV $(2<<32), R0 // type fiq
@ -722,32 +639,19 @@ _vfiqpatch:
TEXT vserr(SB), 1, $-4
SUB $TRAPFRAMESIZE, RSP
MOV R0, 16(RSP)
MOV R1, 24(RSP)
MOV R2, 32(RSP)
MOV R3, 40(RSP)
MOV R4, 48(RSP)
MOV R5, 56(RSP)
MOV R6, 64(RSP)
MOV R7, 72(RSP)
MOV R8, 80(RSP)
MOV R9, 88(RSP)
MOV R10, 96(RSP)
MOV R11, 104(RSP)
MOV R12, 112(RSP)
MOV R13, 120(RSP)
MOV R14, 128(RSP)
MOV R15, 136(RSP)
MOV R16, 144(RSP)
MOV R17, 152(RSP)
MOV R18, 160(RSP)
MOV R19, 168(RSP)
MOV R20, 176(RSP)
MOV R21, 184(RSP)
MOV R22, 192(RSP)
MOV R23, 200(RSP)
MOV R24, 208(RSP)
MOV R25, 216(RSP)
MOVP R0, R1, 16(RSP)
MOVP R2, R3, 32(RSP)
MOVP R4, R5, 48(RSP)
MOVP R6, R7, 64(RSP)
MOVP R8, R9, 80(RSP)
MOVP R10, R11, 96(RSP)
MOVP R12, R13, 112(RSP)
MOVP R14, R15, 128(RSP)
MOVP R16, R17, 144(RSP)
MOVP R18, R19, 160(RSP)
MOVP R20, R21, 176(RSP)
MOVP R22, R23, 192(RSP)
MOVP R24, R25, 208(RSP)
MOV R30, 256(RSP) // link