diff options
Diffstat (limited to 'include/asm-ppc/byteorder.h')
-rw-r--r-- | include/asm-ppc/byteorder.h | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/include/asm-ppc/byteorder.h b/include/asm-ppc/byteorder.h deleted file mode 100644 index 3f5bcf6..0000000 --- a/include/asm-ppc/byteorder.h +++ /dev/null @@ -1,84 +0,0 @@ -#ifndef _PPC_BYTEORDER_H -#define _PPC_BYTEORDER_H - -#include <asm/types.h> - -#ifdef __GNUC__ - -extern __inline__ unsigned ld_le16(const volatile unsigned short *addr) -{ - unsigned val; - - __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); - return val; -} - -extern __inline__ void st_le16(volatile unsigned short *addr, const unsigned val) -{ - __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); -} - -extern __inline__ unsigned ld_le32(const volatile unsigned *addr) -{ - unsigned val; - - __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); - return val; -} - -extern __inline__ void st_le32(volatile unsigned *addr, const unsigned val) -{ - __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); -} - -/* alas, egcs sounds like it has a bug in this code that doesn't use the - inline asm correctly, and can cause file corruption. Until I hear that - it's fixed, I can live without the extra speed. I hope. */ -#if !(__GNUC__ >= 2 && __GNUC_MINOR__ >= 90) -#if 0 -# define __arch_swab16(x) ld_le16(&x) -# define __arch_swab32(x) ld_le32(&x) -#else -static __inline__ __attribute__((const)) __u16 ___arch__swab16(__u16 value) -{ - __u16 result; - - __asm__("rlwimi %0,%1,8,16,23" - : "=r" (result) - : "r" (value), "0" (value >> 8)); - return result; -} - -static __inline__ __attribute__((const)) __u32 ___arch__swab32(__u32 value) -{ - __u32 result; - - __asm__("rlwimi %0,%1,24,16,23\n\t" - "rlwimi %0,%1,8,8,15\n\t" - "rlwimi %0,%1,24,0,7" - : "=r" (result) - : "r" (value), "0" (value >> 24)); - return result; -} -#define __arch__swab32(x) ___arch__swab32(x) -#define __arch__swab16(x) ___arch__swab16(x) -#endif /* 0 */ - -#endif - -/* The same, but returns converted value from the location pointer by addr. */ -#define __arch__swab16p(addr) ld_le16(addr) -#define __arch__swab32p(addr) ld_le32(addr) - -/* The same, but do the conversion in situ, ie. put the value back to addr. */ -#define __arch__swab16s(addr) st_le16(addr,*addr) -#define __arch__swab32s(addr) st_le32(addr,*addr) - -#endif /* __GNUC__ */ - -#if defined(__GNUC__) && !defined(__STRICT_ANSI__) -#define __BYTEORDER_HAS_U64__ -#endif -#include <linux/byteorder/big_endian.h> - -#endif /* _PPC_BYTEORDER_H */ |