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authorHarvey Harrison <harvey.harrison@gmail.com>2009-01-06 17:56:27 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 21:10:27 -0500
commitf4d2b14501bb7f9a3fa75c07ec0940068fadf728 (patch)
treeab54ca436766cff9405edbff535aa64f679adb44
parent1af84a625356768ab1f9687b70c825250123d7fd (diff)
sparc: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/sparc/include/asm/Kbuild1
-rw-r--r--arch/sparc/include/asm/byteorder.h46
-rw-r--r--arch/sparc/include/asm/swab.h45
3 files changed, 48 insertions, 44 deletions
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index deeb0fba8029..95e38a43dff0 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -17,3 +17,4 @@ header-y += traps.h
17header-y += uctx.h 17header-y += uctx.h
18header-y += utrap.h 18header-y += utrap.h
19header-y += watchdog.h 19header-y += watchdog.h
20header-y += swab.h
diff --git a/arch/sparc/include/asm/byteorder.h b/arch/sparc/include/asm/byteorder.h
index 738414b26558..48a047cd6fa9 100644
--- a/arch/sparc/include/asm/byteorder.h
+++ b/arch/sparc/include/asm/byteorder.h
@@ -1,49 +1,7 @@
1#ifndef _SPARC_BYTEORDER_H 1#ifndef _SPARC_BYTEORDER_H
2#define _SPARC_BYTEORDER_H 2#define _SPARC_BYTEORDER_H
3 3
4#include <linux/types.h> 4#include <asm/swab.h>
5#include <asm/asi.h> 5#include <linux/byteorder/big_endian.h>
6
7#define __BIG_ENDIAN
8
9#if defined(__sparc__) && defined(__arch64__)
10static inline __u16 __arch_swab16p(const __u16 *addr)
11{
12 __u16 ret;
13
14 __asm__ __volatile__ ("lduha [%1] %2, %0"
15 : "=r" (ret)
16 : "r" (addr), "i" (ASI_PL));
17 return ret;
18}
19#define __arch_swab16p __arch_swab16p
20
21static inline __u32 __arch_swab32p(const __u32 *addr)
22{
23 __u32 ret;
24
25 __asm__ __volatile__ ("lduwa [%1] %2, %0"
26 : "=r" (ret)
27 : "r" (addr), "i" (ASI_PL));
28 return ret;
29}
30#define __arch_swab32p __arch_swab32p
31
32static inline __u64 __arch_swab64p(const __u64 *addr)
33{
34 __u64 ret;
35
36 __asm__ __volatile__ ("ldxa [%1] %2, %0"
37 : "=r" (ret)
38 : "r" (addr), "i" (ASI_PL));
39 return ret;
40}
41#define __arch_swab64p __arch_swab64p
42
43#else
44#define __SWAB_64_THRU_32__
45#endif /* defined(__sparc__) && defined(__arch64__) */
46
47#include <linux/byteorder.h>
48 6
49#endif /* _SPARC_BYTEORDER_H */ 7#endif /* _SPARC_BYTEORDER_H */
diff --git a/arch/sparc/include/asm/swab.h b/arch/sparc/include/asm/swab.h
new file mode 100644
index 000000000000..a34ad079487e
--- /dev/null
+++ b/arch/sparc/include/asm/swab.h
@@ -0,0 +1,45 @@
1#ifndef _SPARC_SWAB_H
2#define _SPARC_SWAB_H
3
4#include <linux/types.h>
5#include <asm/asi.h>
6
7#if defined(__sparc__) && defined(__arch64__)
8static inline __u16 __arch_swab16p(const __u16 *addr)
9{
10 __u16 ret;
11
12 __asm__ __volatile__ ("lduha [%1] %2, %0"
13 : "=r" (ret)
14 : "r" (addr), "i" (ASI_PL));
15 return ret;
16}
17#define __arch_swab16p __arch_swab16p
18
19static inline __u32 __arch_swab32p(const __u32 *addr)
20{
21 __u32 ret;
22
23 __asm__ __volatile__ ("lduwa [%1] %2, %0"
24 : "=r" (ret)
25 : "r" (addr), "i" (ASI_PL));
26 return ret;
27}
28#define __arch_swab32p __arch_swab32p
29
30static inline __u64 __arch_swab64p(const __u64 *addr)
31{
32 __u64 ret;
33
34 __asm__ __volatile__ ("ldxa [%1] %2, %0"
35 : "=r" (ret)
36 : "r" (addr), "i" (ASI_PL));
37 return ret;
38}
39#define __arch_swab64p __arch_swab64p
40
41#else
42#define __SWAB_64_THRU_32__
43#endif /* defined(__sparc__) && defined(__arch64__) */
44
45#endif /* _SPARC_SWAB_H */