diff options
author | Harvey Harrison <harvey.harrison@gmail.com> | 2009-01-06 17:56:28 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 21:10:27 -0500 |
commit | c6f09f0c32e5e30b91dea901f00251173fe997f4 (patch) | |
tree | 163597626d012e325229d2c9e3dc3e2066857d73 | |
parent | 5d30a683888c60b8f93bef3ddc139d1a91ca58f4 (diff) |
m68k: 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-- | include/asm-m68k/Kbuild | 1 | ||||
-rw-r--r-- | include/asm-m68k/byteorder.h | 16 | ||||
-rw-r--r-- | include/asm-m68k/swab.h | 16 |
3 files changed, 19 insertions, 14 deletions
diff --git a/include/asm-m68k/Kbuild b/include/asm-m68k/Kbuild index 1a922fad76f7..52fd96b4142a 100644 --- a/include/asm-m68k/Kbuild +++ b/include/asm-m68k/Kbuild | |||
@@ -1,2 +1,3 @@ | |||
1 | include include/asm-generic/Kbuild.asm | 1 | include include/asm-generic/Kbuild.asm |
2 | header-y += cachectl.h | 2 | header-y += cachectl.h |
3 | unifdef-y += swab.h | ||
diff --git a/include/asm-m68k/byteorder.h b/include/asm-m68k/byteorder.h index b354acdafec8..300866523b86 100644 --- a/include/asm-m68k/byteorder.h +++ b/include/asm-m68k/byteorder.h | |||
@@ -1,19 +1,7 @@ | |||
1 | #ifndef _M68K_BYTEORDER_H | 1 | #ifndef _M68K_BYTEORDER_H |
2 | #define _M68K_BYTEORDER_H | 2 | #define _M68K_BYTEORDER_H |
3 | 3 | ||
4 | #include <asm/types.h> | 4 | #include <asm/swab.h> |
5 | #include <linux/compiler.h> | 5 | #include <linux/byteorder/big_endian.h> |
6 | |||
7 | #define __BIG_ENDIAN | ||
8 | #define __SWAB_64_THRU_32__ | ||
9 | |||
10 | static inline __attribute_const__ __u32 __arch_swab32(__u32 val) | ||
11 | { | ||
12 | __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val)); | ||
13 | return val; | ||
14 | } | ||
15 | #define __arch_swab32 __arch_swab32 | ||
16 | |||
17 | #include <linux/byteorder.h> | ||
18 | 6 | ||
19 | #endif /* _M68K_BYTEORDER_H */ | 7 | #endif /* _M68K_BYTEORDER_H */ |
diff --git a/include/asm-m68k/swab.h b/include/asm-m68k/swab.h new file mode 100644 index 000000000000..7221e3066825 --- /dev/null +++ b/include/asm-m68k/swab.h | |||
@@ -0,0 +1,16 @@ | |||
1 | #ifndef _M68K_SWAB_H | ||
2 | #define _M68K_SWAB_H | ||
3 | |||
4 | #include <asm/types.h> | ||
5 | #include <linux/compiler.h> | ||
6 | |||
7 | #define __SWAB_64_THRU_32__ | ||
8 | |||
9 | static inline __attribute_const__ __u32 __arch_swab32(__u32 val) | ||
10 | { | ||
11 | __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val)); | ||
12 | return val; | ||
13 | } | ||
14 | #define __arch_swab32 __arch_swab32 | ||
15 | |||
16 | #endif /* _M68K_SWAB_H */ | ||