diff options
Diffstat (limited to 'include/asm-sparc64/byteorder.h')
| -rw-r--r-- | include/asm-sparc64/byteorder.h | 85 |
1 files changed, 76 insertions, 9 deletions
diff --git a/include/asm-sparc64/byteorder.h b/include/asm-sparc64/byteorder.h index 21f4b0ba0..2325ef29c 100644 --- a/include/asm-sparc64/byteorder.h +++ b/include/asm-sparc64/byteorder.h @@ -1,7 +1,9 @@ -/* $Id: byteorder.h,v 1.4 1997/05/26 23:37:47 davem Exp $ */ +/* $Id: byteorder.h,v 1.5 1997/05/28 11:35:41 jj Exp $ */ #ifndef _SPARC64_BYTEORDER_H #define _SPARC64_BYTEORDER_H +#include <asm/asi.h> + #define ntohl(x) ((unsigned long int)(x)) #define ntohs(x) ((unsigned short int)(x)) #define htonl(x) ((unsigned long int)(x)) @@ -34,22 +36,87 @@ extern __inline__ __u32 cpu_to_le32(__u32 value) return((value>>24) | ((value>>8)&0xff00) | ((value<<8)&0xff0000) | (value<<24)); } + +extern __inline__ __u64 cpu_to_le64(__u64 value) +{ + return (((value>>56) & 0x00000000000000ffUL) | + ((value>>40) & 0x000000000000ff00UL) | + ((value>>24) & 0x0000000000ff0000UL) | + ((value>>8) & 0x00000000ff000000UL) | + ((value<<8) & 0x000000ff00000000UL) | + ((value<<24) & 0x0000ff0000000000UL) | + ((value<<40) & 0x00ff000000000000UL) | + ((value<<56) & 0xff00000000000000UL)); +} #define cpu_to_be16(x) (x) #define cpu_to_be32(x) (x) +#define cpu_to_be64(x) (x) -/* Convert from specified byte order, to CPU byte order. */ -extern __inline__ __u16 le16_to_cpu(__u16 value) +/* The same, but returns converted value from the location pointer by addr. */ +extern __inline__ __u16 cpu_to_le16p(__u16 *addr) { - return (value >> 8) | (value << 8); + __u16 ret; + __asm__ __volatile__ ("lduha [%1] %2, %0" : "=r" (ret) : "r" (addr), "i" (ASI_PL)); + return ret; } -extern __inline__ __u32 le32_to_cpu(__u32 value) +extern __inline__ __u32 cpu_to_le32p(__u32 *addr) { - return((value>>24) | ((value>>8)&0xff00) | - ((value<<8)&0xff0000) | (value<<24)); + __u32 ret; + __asm__ __volatile__ ("lduwa [%1] %2, %0" : "=r" (ret) : "r" (addr), "i" (ASI_PL)); + return ret; +} + +extern __inline__ __u64 cpu_to_le64p(__u64 *addr) +{ + __u64 ret; + __asm__ __volatile__ ("ldxa [%1] %2, %0" : "=r" (ret) : "r" (addr), "i" (ASI_PL)); + return ret; +} +extern __inline__ __u16 cpu_to_be16p(__u16 *addr) { return *addr; } +extern __inline__ __u32 cpu_to_be32p(__u32 *addr) { return *addr; } +extern __inline__ __u64 cpu_to_be64p(__u64 *addr) { return *addr; } + +/* The same, but do the conversion in situ, ie. put the value back to addr. */ +extern __inline__ void cpu_to_le16s(__u16 *addr) +{ + *addr = cpu_to_le16p(addr); +} + +extern __inline__ void cpu_to_le32s(__u32 *addr) +{ + *addr = cpu_to_le32p(addr); +} + +extern __inline__ void cpu_to_le64s(__u64 *addr) +{ + *addr = cpu_to_le64p(addr); } -#define be16_to_cpu(x) (x) -#define be32_to_cpu(x) (x) +#define cpu_to_be16s(x) do { } while (0) +#define cpu_to_be32s(x) do { } while (0) +#define cpu_to_be64s(x) do { } while (0) + +/* Convert from specified byte order, to CPU byte order. */ +#define le16_to_cpu(x) cpu_to_le16(x) +#define le32_to_cpu(x) cpu_to_le32(x) +#define le64_to_cpu(x) cpu_to_le64(x) +#define be16_to_cpu(x) cpu_to_be16(x) +#define be32_to_cpu(x) cpu_to_be32(x) +#define be64_to_cpu(x) cpu_to_be64(x) + +#define le16_to_cpup(x) cpu_to_le16p(x) +#define le32_to_cpup(x) cpu_to_le32p(x) +#define le64_to_cpup(x) cpu_to_le64p(x) +#define be16_to_cpup(x) cpu_to_be16p(x) +#define be32_to_cpup(x) cpu_to_be32p(x) +#define be64_to_cpup(x) cpu_to_be64p(x) + +#define le16_to_cpus(x) cpu_to_le16s(x) +#define le32_to_cpus(x) cpu_to_le32s(x) +#define le64_to_cpus(x) cpu_to_le64s(x) +#define be16_to_cpus(x) cpu_to_be16s(x) +#define be32_to_cpus(x) cpu_to_be32s(x) +#define be64_to_cpus(x) cpu_to_be64s(x) #endif /* __KERNEL__ */ |