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| author | Steven Whitehouse <steve@men-an-tol.chygwyn.com> | 2006-02-23 09:49:43 +0000 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-02-23 09:49:43 +0000 |
| commit | d35462b4bb847b68321c55e95c926aa485aecce2 (patch) | |
| tree | b08e18bf6e672633402871ee763102fdb5e63229 /include/asm-mips/byteorder.h | |
| parent | 91ffd7db71e7451f89941a8f428b4daa2a7c1e38 (diff) | |
| parent | 9e956c2dac9bec602ed1ba29181b45ba6d2b6448 (diff) | |
| download | op-kernel-dev-d35462b4bb847b68321c55e95c926aa485aecce2.zip op-kernel-dev-d35462b4bb847b68321c55e95c926aa485aecce2.tar.gz | |
Merge branch 'master'
Diffstat (limited to 'include/asm-mips/byteorder.h')
| -rw-r--r-- | include/asm-mips/byteorder.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/asm-mips/byteorder.h b/include/asm-mips/byteorder.h index d1fe9e5..584f812 100644 --- a/include/asm-mips/byteorder.h +++ b/include/asm-mips/byteorder.h @@ -8,10 +8,39 @@ #ifndef _ASM_BYTEORDER_H #define _ASM_BYTEORDER_H +#include <linux/config.h> +#include <linux/compiler.h> #include <asm/types.h> #ifdef __GNUC__ +#ifdef CONFIG_CPU_MIPSR2 + +static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x) +{ + __asm__( + " wsbh %0, %1 \n" + : "=r" (x) + : "r" (x)); + + return x; +} +#define __arch__swab16(x) ___arch__swab16(x) + +static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) +{ + __asm__( + " wsbh %0, %1 \n" + " rotr %0, %0, 16 \n" + : "=r" (x) + : "r" (x)); + + return x; +} +#define __arch__swab32(x) ___arch__swab32(x) + +#endif /* CONFIG_CPU_MIPSR2 */ + #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) # define __BYTEORDER_HAS_U64__ # define __SWAB_64_THRU_32__ |
