diff options
| -rw-r--r-- | arch/powerpc/lib/Makefile | 6 | ||||
| -rw-r--r-- | arch/ppc64/lib/Makefile | 2 | ||||
| -rw-r--r-- | arch/ppc64/lib/memcpy.S | 172 |
3 files changed, 4 insertions, 176 deletions
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 955c0642159..9cf35ed3f33 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -5,11 +5,11 @@ ifeq ($(CONFIG_PPC_MERGE),y) obj-y := strcase.o string.o obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o -obj-$(CONFIG_PPC64) += memcpy_64.o \ - usercopy_64.o sstep.o mem_64.o +obj-$(CONFIG_PPC64) += usercopy_64.o sstep.o mem_64.o endif -obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o +obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \ + memcpy_64.o obj-$(CONFIG_PPC_ISERIES) += e2a.o ifeq ($(CONFIG_PPC64),y) obj-$(CONFIG_SMP) += locks.o diff --git a/arch/ppc64/lib/Makefile b/arch/ppc64/lib/Makefile index 87c2ff5e188..49af089c604 100644 --- a/arch/ppc64/lib/Makefile +++ b/arch/ppc64/lib/Makefile @@ -3,6 +3,6 @@ # lib-y := string.o strcase.o -lib-y += memcpy.o usercopy.o +lib-y += usercopy.o lib-$(CONFIG_DEBUG_KERNEL) += sstep.o diff --git a/arch/ppc64/lib/memcpy.S b/arch/ppc64/lib/memcpy.S deleted file mode 100644 index 9ccacdf5bcb..00000000000 --- a/arch/ppc64/lib/memcpy.S +++ /dev/null @@ -1,172 +0,0 @@ -/* - * arch/ppc64/lib/memcpy.S - * - * Copyright (C) 2002 Paul Mackerras, IBM Corp. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <asm/processor.h> -#include <asm/ppc_asm.h> - - .align 7 -_GLOBAL(memcpy) - mtcrf 0x01,r5 - cmpldi cr1,r5,16 - neg r6,r3 # LS 3 bits = # bytes to 8-byte dest bdry - andi. r6,r6,7 - dcbt 0,r4 - blt cr1,.Lshort_copy - bne .Ldst_unaligned -.Ldst_aligned: - andi. r0,r4,7 - addi r3,r3,-16 - bne .Lsrc_unaligned - srdi r7,r5,4 - ld r9,0(r4) - addi r4,r4,-8 - mtctr r7 - andi. r5,r5,7 - bf cr7*4+0,2f - addi r3,r3,8 - addi r4,r4,8 - mr r8,r9 - blt cr1,3f -1: ld r9,8(r4) - std r8,8(r3) -2: ldu r8,16(r4) - stdu r9,16(r3) - bdnz 1b -3: std r8,8(r3) - beqlr - addi r3,r3,16 - ld r9,8(r4) -.Ldo_tail: - bf cr7*4+1,1f - rotldi r9,r9,32 - stw r9,0(r3) - addi r3,r3,4 -1: bf cr7*4+2,2f - rotldi r9,r9,16 - sth r9,0(r3) - addi r3,r3,2 -2: bf cr7*4+3,3f - rotldi r9,r9,8 - stb r9,0(r3) -3: blr - -.Lsrc_unaligned: - srdi r6,r5,3 - addi r5,r5,-16 - subf r4,r0,r4 - srdi r7,r5,4 - sldi r10,r0,3 - cmpdi cr6,r6,3 - andi. r5,r5,7 - mtctr r7 - subfic r11,r10,64 - add r5,r5,r0 - - bt cr7*4+0,0f - - ld r9,0(r4) # 3+2n loads, 2+2n stores - ld r0,8(r4) - sld r6,r9,r10 - ldu r9,16(r4) - srd r7,r0,r11 - sld r8,r0,r10 - or r7,r7,r6 - blt cr6,4f - ld r0,8(r4) - # s1<< in r8, d0=(s0<<|s1>>) in r7, s3 in r0, s2 in r9, nix in r6 & r12 - b 2f - -0: ld r0,0(r4) # 4+2n loads, 3+2n stores - ldu r9,8(r4) - sld r8,r0,r10 - addi r3,r3,-8 - blt cr6,5f - ld r0,8(r4) - srd r12,r9,r11 - sld r6,r9,r10 - ldu r9,16(r4) - or r12,r8,r12 - srd r7,r0,r11 - sld r8,r0,r10 - addi r3,r3,16 - beq cr6,3f - - # d0=(s0<<|s1>>) in r12, s1<< in r6, s2>> in r7, s2<< in r8, s3 in r9 -1: or r7,r7,r6 - ld r0,8(r4) - std r12,8(r3) -2: srd r12,r9,r11 - sld r6,r9,r10 - ldu r9,16(r4) - or r12,r8,r12 - stdu r7,16(r3) - srd r7,r0,r11 - sld r8,r0,r10 - bdnz 1b - -3: std r12,8(r3) - or r7,r7,r6 -4: std r7,16(r3) -5: srd r12,r9,r11 - or r12,r8,r12 - std r12,24(r3) - beqlr - cmpwi cr1,r5,8 - addi r3,r3,32 - sld r9,r9,r10 - ble cr1,.Ldo_tail - ld r0,8(r4) - srd r7,r0,r11 - or r9,r7,r9 - b .Ldo_tail - -.Ldst_unaligned: - mtcrf 0x01,r6 # put #bytes to 8B bdry into cr7 - subf r5,r6,r5 - li r7,0 - cmpldi r1,r5,16 - bf cr7*4+3,1f - lbz r0,0(r4) - stb r0,0(r3) - addi r7,r7,1 -1: bf cr7*4+2,2f - lhzx r0,r7,r4 - sthx r0,r7,r3 - addi r7,r7,2 -2: bf cr7*4+1,3f - lwzx r0,r7,r4 - stwx r0,r7,r3 -3: mtcrf 0x01,r5 - add r4,r6,r4 - add r3,r6,r3 - b .Ldst_aligned - -.Lshort_copy: - bf cr7*4+0,1f - lwz r0,0(r4) - lwz r9,4(r4) - addi r4,r4,8 - stw r0,0(r3) - stw r9,4(r3) - addi r3,r3,8 -1: bf cr7*4+1,2f - lwz r0,0(r4) - addi r4,r4,4 - stw r0,0(r3) - addi r3,r3,4 -2: bf cr7*4+2,3f - lhz r0,0(r4) - addi r4,r4,2 - sth r0,0(r3) - addi r3,r3,2 -3: bf cr7*4+3,4f - lbz r0,0(r4) - stb r0,0(r3) -4: blr |