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| author |   David S. Miller <davem@sunset.davemloft.net> | 2007-11-16 02:59:58 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-02-09 04:17:28 -0800 |
| commit | f610bbc6accaacdf46501208178ff77c4422587a (patch) | |
| tree | b8fa7221db53dffe0a8834f82a0328ae9fb24420 /include/asm-sparc | |
| parent | [SPARC]: Merge asm-sparc{,64}/bugs.h (diff) | |
| download | linux-dev-f610bbc6accaacdf46501208178ff77c4422587a.tar.xz linux-dev-f610bbc6accaacdf46501208178ff77c4422587a.zip | |
[SPARC]: Merge asm-sparc{,64}/byteorder.h
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc')
| -rw-r--r-- | include/asm-sparc/byteorder.h | 51 |
1 files changed, 47 insertions, 4 deletions
diff --git a/include/asm-sparc/byteorder.h b/include/asm-sparc/byteorder.h index a2949aea48ef..bcd83aa351c5 100644 --- a/include/asm-sparc/byteorder.h +++ b/include/asm-sparc/byteorder.h @@ -1,12 +1,55 @@ -/* $Id: byteorder.h,v 1.15 1997/12/16 19:20:44 davem Exp $ */ #ifndef _SPARC_BYTEORDER_H #define _SPARC_BYTEORDER_H #include <asm/types.h> +#include <asm/asi.h> + +#ifdef __GNUC__ + +#ifdef CONFIG_SPARC32 +#define __SWAB_64_THRU_32__ +#endif + +#ifdef CONFIG_SPARC64 + +static inline __u16 ___arch__swab16p(const __u16 *addr) +{ + __u16 ret; + + __asm__ __volatile__ ("lduha [%1] %2, %0" + : "=r" (ret) + : "r" (addr), "i" (ASI_PL)); + return ret; +} + +static inline __u32 ___arch__swab32p(const __u32 *addr) +{ + __u32 ret; + + __asm__ __volatile__ ("lduwa [%1] %2, %0" + : "=r" (ret) + : "r" (addr), "i" (ASI_PL)); + return ret; +} + +static inline __u64 ___arch__swab64p(const __u64 *addr) +{ + __u64 ret; + + __asm__ __volatile__ ("ldxa [%1] %2, %0" + : "=r" (ret) + : "r" (addr), "i" (ASI_PL)); + return ret; +} + +#define __arch__swab16p(x) ___arch__swab16p(x) +#define __arch__swab32p(x) ___arch__swab32p(x) +#define __arch__swab64p(x) ___arch__swab64p(x) + +#endif /* CONFIG_SPARC64 */ + +#define __BYTEORDER_HAS_U64__ -#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__) -# define __BYTEORDER_HAS_U64__ -# define __SWAB_64_THRU_32__ #endif #include <linux/byteorder/big_endian.h> |