diff options
author | Bryan Wu <cooloney@kernel.org> | 2008-08-27 10:51:02 +0800 |
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committer | Bryan Wu <cooloney@kernel.org> | 2008-08-27 10:51:02 +0800 |
commit | 639f6571458948b5112be2cf00c0c2c04db2897d (patch) | |
tree | a4dd7af33d0e92c935ba1e904f6fb7e923ac825e /arch/blackfin/include/asm/byteorder.h | |
parent | 3d9b7a5ce534f3963afcf8f4777267e5899fe007 (diff) |
Blackfin arch: move include/asm-blackfin header files to arch/blackfin
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/include/asm/byteorder.h')
-rw-r--r-- | arch/blackfin/include/asm/byteorder.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/byteorder.h b/arch/blackfin/include/asm/byteorder.h new file mode 100644 index 00000000000..6a673d42da1 --- /dev/null +++ b/arch/blackfin/include/asm/byteorder.h @@ -0,0 +1,48 @@ +#ifndef _BLACKFIN_BYTEORDER_H +#define _BLACKFIN_BYTEORDER_H + +#include <asm/types.h> +#include <linux/compiler.h> + +#ifdef __GNUC__ + +static __inline__ __attribute_const__ __u32 ___arch__swahb32(__u32 xx) +{ + __u32 tmp; + __asm__("%1 = %0 >> 8 (V);\n\t" + "%0 = %0 << 8 (V);\n\t" + "%0 = %0 | %1;\n\t" + : "+d"(xx), "=&d"(tmp)); + return xx; +} + +static __inline__ __attribute_const__ __u32 ___arch__swahw32(__u32 xx) +{ + __u32 rv; + __asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx)); + return rv; +} + +#define __arch__swahb32(x) ___arch__swahb32(x) +#define __arch__swahw32(x) ___arch__swahw32(x) +#define __arch__swab32(x) ___arch__swahb32(___arch__swahw32(x)) + +static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 xx) +{ + __u32 xw = xx; + __asm__("%0 <<= 8;\n %0.L = %0.L + %0.H (NS);\n": "+d"(xw)); + return (__u16)xw; +} + +#define __arch__swab16(x) ___arch__swab16(x) + +#endif + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +# define __SWAB_64_THRU_32__ +#endif + +#include <linux/byteorder/little_endian.h> + +#endif /* _BLACKFIN_BYTEORDER_H */ |