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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-07 22:08:56 +0400 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-07 22:08:56 +0400 |
commit | 5a89770daad83df74d77a8d34a1ffaedae565ce9 (patch) | |
tree | 0d8ef70293a6ef969ba8b7718e59608337643d40 /arch/blackfin/include/asm/byteorder.h | |
parent | c46c948260f41af18b277c1eb1895d788d3605dc (diff) | |
parent | af7c951d76708c61b862463d579d76be757130bf (diff) | |
download | linux-5a89770daad83df74d77a8d34a1ffaedae565ce9.tar.xz |
Merge branches 'pxa-core' and 'pxa-machines' into pxa-all
Conflicts:
arch/arm/mach-pxa/Kconfig
arch/arm/mach-pxa/pxa25x.c
arch/arm/mach-pxa/pxa27x.c
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 000000000000..6a673d42da18 --- /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 */ |