aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/lib/memcpy_64.S11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/powerpc/lib/memcpy_64.S b/arch/powerpc/lib/memcpy_64.S
index fd66acfd3e3e..7173ba98f427 100644
--- a/arch/powerpc/lib/memcpy_64.S
+++ b/arch/powerpc/lib/memcpy_64.S
@@ -11,6 +11,7 @@
11 11
12 .align 7 12 .align 7
13_GLOBAL(memcpy) 13_GLOBAL(memcpy)
14 std r3,48(r1) /* save destination pointer for return value */
14 mtcrf 0x01,r5 15 mtcrf 0x01,r5
15 cmpldi cr1,r5,16 16 cmpldi cr1,r5,16
16 neg r6,r3 # LS 3 bits = # bytes to 8-byte dest bdry 17 neg r6,r3 # LS 3 bits = # bytes to 8-byte dest bdry
@@ -38,7 +39,7 @@ _GLOBAL(memcpy)
38 stdu r9,16(r3) 39 stdu r9,16(r3)
39 bdnz 1b 40 bdnz 1b
403: std r8,8(r3) 413: std r8,8(r3)
41 beqlr 42 beq 3f
42 addi r3,r3,16 43 addi r3,r3,16
43 ld r9,8(r4) 44 ld r9,8(r4)
44.Ldo_tail: 45.Ldo_tail:
@@ -53,7 +54,8 @@ _GLOBAL(memcpy)
532: bf cr7*4+3,3f 542: bf cr7*4+3,3f
54 rotldi r9,r9,8 55 rotldi r9,r9,8
55 stb r9,0(r3) 56 stb r9,0(r3)
563: blr 573: ld r3,48(r1) /* return dest pointer */
58 blr
57 59
58.Lsrc_unaligned: 60.Lsrc_unaligned:
59 srdi r6,r5,3 61 srdi r6,r5,3
@@ -115,7 +117,7 @@ _GLOBAL(memcpy)
1155: srd r12,r9,r11 1175: srd r12,r9,r11
116 or r12,r8,r12 118 or r12,r8,r12
117 std r12,24(r3) 119 std r12,24(r3)
118 beqlr 120 beq 4f
119 cmpwi cr1,r5,8 121 cmpwi cr1,r5,8
120 addi r3,r3,32 122 addi r3,r3,32
121 sld r9,r9,r10 123 sld r9,r9,r10
@@ -167,4 +169,5 @@ _GLOBAL(memcpy)
1673: bf cr7*4+3,4f 1693: bf cr7*4+3,4f
168 lbz r0,0(r4) 170 lbz r0,0(r4)
169 stb r0,0(r3) 171 stb r0,0(r3)
1704: blr 1724: ld r3,48(r1) /* return dest pointer */
173 blr