1 #ifndef _PPC_BYTEORDER_H
2 #define _PPC_BYTEORDER_H
5 #include <linux/compiler.h>
10 extern __inline__ unsigned ld_le16(const volatile unsigned short *addr)
14 __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
18 extern __inline__ void st_le16(volatile unsigned short *addr, const unsigned val)
20 __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
23 extern __inline__ unsigned ld_le32(const volatile unsigned *addr)
27 __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
31 extern __inline__ void st_le32(volatile unsigned *addr, const unsigned val)
33 __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
36 static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 value)
40 __asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (value >> 8), "r" (value));
44 static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 value)
48 __asm__("rlwimi %0,%2,24,16,23" : "=&r" (result) : "0" (value>>24), "r" (value));
49 __asm__("rlwimi %0,%2,8,8,15" : "=&r" (result) : "0" (result), "r" (value));
50 __asm__("rlwimi %0,%2,24,0,7" : "=&r" (result) : "0" (result), "r" (value));
54 #define __arch__swab32(x) ___arch__swab32(x)
55 #define __arch__swab16(x) ___arch__swab16(x)
57 /* The same, but returns converted value from the location pointer by addr. */
58 #define __arch__swab16p(addr) ld_le16(addr)
59 #define __arch__swab32p(addr) ld_le32(addr)
61 /* The same, but do the conversion in situ, ie. put the value back to addr. */
62 #define __arch__swab16s(addr) st_le16(addr,*addr)
63 #define __arch__swab32s(addr) st_le32(addr,*addr)
65 #endif /* __KERNEL__ */
67 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
68 # define __BYTEORDER_HAS_U64__
69 # define __SWAB_64_THRU_32__
74 #include <linux/byteorder/big_endian.h>
76 #endif /* _PPC_BYTEORDER_H */