diff options
| author | Dave Kleikamp <shaggy@austin.ibm.com> | 2006-03-14 17:05:45 -0600 |
|---|---|---|
| committer | Dave Kleikamp <shaggy@austin.ibm.com> | 2006-03-14 17:05:45 -0600 |
| commit | c5111f504d2a9b0d258d7c4752b4093523315989 (patch) | |
| tree | 6a52864aff79691689aea21cb0cb928327d5de5b /include/asm-mips/byteorder.h | |
| parent | 69eb66d7da7dba2696281981347698e1693c2340 (diff) | |
| parent | a488edc914aa1d766a4e2c982b5ae03d5657ec1b (diff) | |
Merge with /home/shaggy/git/linus-clean/
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 d1fe9e5c62e..584f8128fff 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__ |