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authorDavid S. Miller <davem@davemloft.net>2009-12-11 02:32:10 -0500
committerDavid S. Miller <davem@davemloft.net>2009-12-11 02:32:10 -0500
commit4d14a459857bd151ecbd14bcd37b4628da00792b (patch)
treef713e8292ef84bfcc5ba4f3c7cd19aa4ce908bd5 /arch/sparc/include/asm
parentfb34035e7b4bb3edc7c2dc0683cfe21f57a9574d (diff)
sparc: Stop trying to be so fancy and use __builtin_{memcpy,memset}()
This mirrors commit ff60fab71bb3b4fdbf8caf57ff3739ffd0887396 (x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy) Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm')
-rw-r--r--arch/sparc/include/asm/string_32.h78
-rw-r--r--arch/sparc/include/asm/string_64.h25
2 files changed, 4 insertions, 99 deletions
diff --git a/arch/sparc/include/asm/string_32.h b/arch/sparc/include/asm/string_32.h
index 6c5fddb7e6b5..edf196ee4ef8 100644
--- a/arch/sparc/include/asm/string_32.h
+++ b/arch/sparc/include/asm/string_32.h
@@ -16,8 +16,6 @@
16#ifdef __KERNEL__ 16#ifdef __KERNEL__
17 17
18extern void __memmove(void *,const void *,__kernel_size_t); 18extern void __memmove(void *,const void *,__kernel_size_t);
19extern __kernel_size_t __memcpy(void *,const void *,__kernel_size_t);
20extern __kernel_size_t __memset(void *,int,__kernel_size_t);
21 19
22#ifndef EXPORT_SYMTAB_STROPS 20#ifndef EXPORT_SYMTAB_STROPS
23 21
@@ -32,82 +30,10 @@ extern __kernel_size_t __memset(void *,int,__kernel_size_t);
32}) 30})
33 31
34#define __HAVE_ARCH_MEMCPY 32#define __HAVE_ARCH_MEMCPY
35 33#define memcpy(t, f, n) __builtin_memcpy(t, f, n)
36static inline void *__constant_memcpy(void *to, const void *from, __kernel_size_t n)
37{
38 extern void __copy_1page(void *, const void *);
39
40 if(n <= 32) {
41 __builtin_memcpy(to, from, n);
42 } else if (((unsigned int) to & 7) != 0) {
43 /* Destination is not aligned on the double-word boundary */
44 __memcpy(to, from, n);
45 } else {
46 switch(n) {
47 case PAGE_SIZE:
48 __copy_1page(to, from);
49 break;
50 default:
51 __memcpy(to, from, n);
52 break;
53 }
54 }
55 return to;
56}
57
58static inline void *__nonconstant_memcpy(void *to, const void *from, __kernel_size_t n)
59{
60 __memcpy(to, from, n);
61 return to;
62}
63
64#undef memcpy
65#define memcpy(t, f, n) \
66(__builtin_constant_p(n) ? \
67 __constant_memcpy((t),(f),(n)) : \
68 __nonconstant_memcpy((t),(f),(n)))
69 34
70#define __HAVE_ARCH_MEMSET 35#define __HAVE_ARCH_MEMSET
71 36#define memset(s, c, count) __builtin_memset(s, c, count)
72static inline void *__constant_c_and_count_memset(void *s, char c, __kernel_size_t count)
73{
74 extern void bzero_1page(void *);
75 extern __kernel_size_t __bzero(void *, __kernel_size_t);
76
77 if(!c) {
78 if(count == PAGE_SIZE)
79 bzero_1page(s);
80 else
81 __bzero(s, count);
82 } else {
83 __memset(s, c, count);
84 }
85 return s;
86}
87
88static inline void *__constant_c_memset(void *s, char c, __kernel_size_t count)
89{
90 extern __kernel_size_t __bzero(void *, __kernel_size_t);
91
92 if(!c)
93 __bzero(s, count);
94 else
95 __memset(s, c, count);
96 return s;
97}
98
99static inline void *__nonconstant_memset(void *s, char c, __kernel_size_t count)
100{
101 __memset(s, c, count);
102 return s;
103}
104
105#undef memset
106#define memset(s, c, count) \
107(__builtin_constant_p(c) ? (__builtin_constant_p(count) ? \
108 __constant_c_and_count_memset((s), (c), (count)) : \
109 __constant_c_memset((s), (c), (count))) \
110 : __nonconstant_memset((s), (c), (count)))
111 37
112#define __HAVE_ARCH_MEMSCAN 38#define __HAVE_ARCH_MEMSCAN
113 39
diff --git a/arch/sparc/include/asm/string_64.h b/arch/sparc/include/asm/string_64.h
index 43161f2d17eb..9623bc213158 100644
--- a/arch/sparc/include/asm/string_64.h
+++ b/arch/sparc/include/asm/string_64.h
@@ -15,8 +15,6 @@
15 15
16#include <asm/asi.h> 16#include <asm/asi.h>
17 17
18extern void *__memset(void *,int,__kernel_size_t);
19
20#ifndef EXPORT_SYMTAB_STROPS 18#ifndef EXPORT_SYMTAB_STROPS
21 19
22/* First the mem*() things. */ 20/* First the mem*() things. */
@@ -24,29 +22,10 @@ extern void *__memset(void *,int,__kernel_size_t);
24extern void *memmove(void *, const void *, __kernel_size_t); 22extern void *memmove(void *, const void *, __kernel_size_t);
25 23
26#define __HAVE_ARCH_MEMCPY 24#define __HAVE_ARCH_MEMCPY
27extern void *memcpy(void *, const void *, __kernel_size_t); 25#define memcpy(t, f, n) __builtin_memcpy(t, f, n)
28 26
29#define __HAVE_ARCH_MEMSET 27#define __HAVE_ARCH_MEMSET
30extern void *__builtin_memset(void *,int,__kernel_size_t); 28#define memset(s, c, count) __builtin_memset(s, c, count)
31
32static inline void *__constant_memset(void *s, int c, __kernel_size_t count)
33{
34 extern __kernel_size_t __bzero(void *, __kernel_size_t);
35
36 if (!c) {
37 __bzero(s, count);
38 return s;
39 } else
40 return __memset(s, c, count);
41}
42
43#undef memset
44#define memset(s, c, count) \
45((__builtin_constant_p(count) && (count) <= 32) ? \
46 __builtin_memset((s), (c), (count)) : \
47 (__builtin_constant_p(c) ? \
48 __constant_memset((s), (c), (count)) : \
49 __memset((s), (c), (count))))
50 29
51#define __HAVE_ARCH_MEMSCAN 30#define __HAVE_ARCH_MEMSCAN
52 31