diff options
Diffstat (limited to 'arch/arm/lib/memmove.S')
-rw-r--r-- | arch/arm/lib/memmove.S | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/arch/arm/lib/memmove.S b/arch/arm/lib/memmove.S index ef7fddc14ac9..2e301b7bd8f1 100644 --- a/arch/arm/lib/memmove.S +++ b/arch/arm/lib/memmove.S | |||
@@ -13,14 +13,6 @@ | |||
13 | #include <linux/linkage.h> | 13 | #include <linux/linkage.h> |
14 | #include <asm/assembler.h> | 14 | #include <asm/assembler.h> |
15 | 15 | ||
16 | /* | ||
17 | * This can be used to enable code to cacheline align the source pointer. | ||
18 | * Experiments on tested architectures (StrongARM and XScale) didn't show | ||
19 | * this a worthwhile thing to do. That might be different in the future. | ||
20 | */ | ||
21 | //#define CALGN(code...) code | ||
22 | #define CALGN(code...) | ||
23 | |||
24 | .text | 16 | .text |
25 | 17 | ||
26 | /* | 18 | /* |
@@ -55,11 +47,12 @@ ENTRY(memmove) | |||
55 | stmfd sp!, {r5 - r8} | 47 | stmfd sp!, {r5 - r8} |
56 | blt 5f | 48 | blt 5f |
57 | 49 | ||
58 | CALGN( ands ip, r1, #31 ) | 50 | CALGN( ands ip, r0, #31 ) |
59 | CALGN( sbcnes r4, ip, r2 ) @ C is always set here | 51 | CALGN( sbcnes r4, ip, r2 ) @ C is always set here |
60 | CALGN( bcs 2f ) | 52 | CALGN( bcs 2f ) |
61 | CALGN( adr r4, 6f ) | 53 | CALGN( adr r4, 6f ) |
62 | CALGN( subs r2, r2, ip ) @ C is set here | 54 | CALGN( subs r2, r2, ip ) @ C is set here |
55 | CALGN( rsb ip, ip, #32 ) | ||
63 | CALGN( add pc, r4, ip ) | 56 | CALGN( add pc, r4, ip ) |
64 | 57 | ||
65 | PLD( pld [r1, #-4] ) | 58 | PLD( pld [r1, #-4] ) |
@@ -138,8 +131,7 @@ ENTRY(memmove) | |||
138 | subs r2, r2, #28 | 131 | subs r2, r2, #28 |
139 | blt 14f | 132 | blt 14f |
140 | 133 | ||
141 | CALGN( ands ip, r1, #31 ) | 134 | CALGN( ands ip, r0, #31 ) |
142 | CALGN( rsb ip, ip, #32 ) | ||
143 | CALGN( sbcnes r4, ip, r2 ) @ C is always set here | 135 | CALGN( sbcnes r4, ip, r2 ) @ C is always set here |
144 | CALGN( subcc r2, r2, ip ) | 136 | CALGN( subcc r2, r2, ip ) |
145 | CALGN( bcc 15f ) | 137 | CALGN( bcc 15f ) |