AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

ppc64: use mem_64.S from powerpc/lib

Browse Source 
and remove the same bits from ppc64/lib/string.S.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
This commit is contained in:
Stephen Rothwell 2005-10-27 18:03:58 +10:00
parent a4a264f144
commit 299f6ce491
2 changed files with 1 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/powerpc/lib/Makefile
View File

@ -4,13 +4,12 @@
ifeq ($(CONFIG_PPC_MERGE),y)
obj-y := string.o
obj-$(CONFIG_PPC64) += mem_64.o
endif
obj-y += strcase.o
obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o
obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \
memcpy_64.o usercopy_64.o
memcpy_64.o usercopy_64.o mem_64.o
obj-$(CONFIG_PPC_ISERIES) += e2a.o
ifeq ($(CONFIG_PPC64),y)
obj-$(CONFIG_SMP) += locks.o

106
arch/ppc64/lib/string.S
View File

@ -65,112 +65,6 @@ _GLOBAL(strlen)
subf r3,r3,r4
blr
_GLOBAL(memset)
neg r0,r3
rlwimi r4,r4,8,16,23
andi. r0,r0,7 /* # bytes to be 8-byte aligned */
rlwimi r4,r4,16,0,15
cmplw cr1,r5,r0 /* do we get that far? */
rldimi r4,r4,32,0
mtcrf 1,r0
mr r6,r3
blt cr1,8f
beq+ 3f /* if already 8-byte aligned */
subf r5,r0,r5
bf 31,1f
stb r4,0(r6)
addi r6,r6,1
1: bf 30,2f
sth r4,0(r6)
addi r6,r6,2
2: bf 29,3f
stw r4,0(r6)
addi r6,r6,4
3: srdi. r0,r5,6
clrldi r5,r5,58
mtctr r0
beq 5f
4: std r4,0(r6)
std r4,8(r6)
std r4,16(r6)
std r4,24(r6)
std r4,32(r6)
std r4,40(r6)
std r4,48(r6)
std r4,56(r6)
addi r6,r6,64
bdnz 4b
5: srwi. r0,r5,3
clrlwi r5,r5,29
mtcrf 1,r0
beq 8f
bf 29,6f
std r4,0(r6)
std r4,8(r6)
std r4,16(r6)
std r4,24(r6)
addi r6,r6,32
6: bf 30,7f
std r4,0(r6)
std r4,8(r6)
addi r6,r6,16
7: bf 31,8f
std r4,0(r6)
addi r6,r6,8
8: cmpwi r5,0
mtcrf 1,r5
beqlr+
bf 29,9f
stw r4,0(r6)
addi r6,r6,4
9: bf 30,10f
sth r4,0(r6)
addi r6,r6,2
10: bflr 31
stb r4,0(r6)
blr
_GLOBAL(memmove)
cmplw 0,r3,r4
bgt .backwards_memcpy
b .memcpy
_GLOBAL(backwards_memcpy)
rlwinm. r7,r5,32-3,3,31 /* r0 = r5 >> 3 */
add r6,r3,r5
add r4,r4,r5
beq 2f
andi. r0,r6,3
mtctr r7
bne 5f
1: lwz r7,-4(r4)
lwzu r8,-8(r4)
stw r7,-4(r6)
stwu r8,-8(r6)
bdnz 1b
andi. r5,r5,7
2: cmplwi 0,r5,4
blt 3f
lwzu r0,-4(r4)
subi r5,r5,4
stwu r0,-4(r6)
3: cmpwi 0,r5,0
beqlr
mtctr r5
4: lbzu r0,-1(r4)
stbu r0,-1(r6)
bdnz 4b
blr
5: mtctr r0
6: lbzu r7,-1(r4)
stbu r7,-1(r6)
bdnz 6b
subf r5,r0,r5
rlwinm. r7,r5,32-3,3,31
beq 2b
mtctr r7
b 1b
_GLOBAL(memcmp)
cmpwi 0,r5,0
ble- 2f