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powerpc/64s/exception: generate regs clear instructions using .rept

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Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2019-06-22 23:15:33 +10:00 committed by Michael Ellerman
parent bf66e3c4cf
commit f3c8b6c63e
1 changed files with 16 additions and 13 deletions
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29
arch/powerpc/kernel/exceptions-64s.S
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@ -2010,12 +2010,11 @@ BEGIN_FTR_SECTION
mtmsrd r10
sync
#define FMR2(n) fmr (n), (n) ; fmr n+1, n+1
#define FMR4(n) FMR2(n) ; FMR2(n+2)
#define FMR8(n) FMR4(n) ; FMR4(n+4)
#define FMR16(n) FMR8(n) ; FMR8(n+8)
#define FMR32(n) FMR16(n) ; FMR16(n+16)
FMR32(0)
.Lreg=0
.rept 32
fmr .Lreg,.Lreg
.Lreg=.Lreg+1
.endr
FTR_SECTION_ELSE
/*
@ -2027,12 +2026,11 @@ FTR_SECTION_ELSE
mtmsrd r10
sync
#define XVCPSGNDP2(n) XVCPSGNDP(n,n,n) ; XVCPSGNDP(n+1,n+1,n+1)
#define XVCPSGNDP4(n) XVCPSGNDP2(n) ; XVCPSGNDP2(n+2)
#define XVCPSGNDP8(n) XVCPSGNDP4(n) ; XVCPSGNDP4(n+4)
#define XVCPSGNDP16(n) XVCPSGNDP8(n) ; XVCPSGNDP8(n+8)
#define XVCPSGNDP32(n) XVCPSGNDP16(n) ; XVCPSGNDP16(n+16)
XVCPSGNDP32(0)
.Lreg=0
.rept 32
XVCPSGNDP(.Lreg,.Lreg,.Lreg)
.Lreg=.Lreg+1
.endr
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_206)
@ -2043,7 +2041,12 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
* To denormalise we need to move a copy of the register to itself.
* For POWER8 we need to do that for all 64 VSX registers
*/
XVCPSGNDP32(32)
.Lreg=32
.rept 32
XVCPSGNDP(.Lreg,.Lreg,.Lreg)
.Lreg=.Lreg+1
.endr
denorm_done:
mfspr r11,SPRN_HSRR0
subi r11,r11,4