forked from luck/tmp_suning_uos_patched
powerpc: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Harvey Harrison
Linus Torvalds
parent
8cdd3a9261
commit
156ca2bbf6
@ -35,3 +35,4 @@ unifdef-y += spu_info.h
|
||||
unifdef-y += termios.h
|
||||
unifdef-y += types.h
|
||||
unifdef-y += unistd.h
|
||||
unifdef-y += swab.h
|
||||
|
||||
@ -8,86 +8,7 @@
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
|
||||
#include <asm/types.h>
|
||||
#include <linux/compiler.h>
|
||||
|
||||
#define __BIG_ENDIAN
|
||||
|
||||
#ifdef __GNUC__
|
||||
#ifdef __KERNEL__
|
||||
|
||||
static __inline__ __u16 ld_le16(const volatile __u16 *addr)
|
||||
{
|
||||
__u16 val;
|
||||
|
||||
__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
|
||||
return val;
|
||||
}
|
||||
#define __arch_swab16p ld_le16
|
||||
|
||||
static __inline__ void st_le16(volatile __u16 *addr, const __u16 val)
|
||||
{
|
||||
__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
|
||||
}
|
||||
|
||||
static inline void __arch_swab16s(__u16 *addr)
|
||||
{
|
||||
st_le16(addr, *addr);
|
||||
}
|
||||
#define __arch_swab16s __arch_swab16s
|
||||
|
||||
static __inline__ __u32 ld_le32(const volatile __u32 *addr)
|
||||
{
|
||||
__u32 val;
|
||||
|
||||
__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
|
||||
return val;
|
||||
}
|
||||
#define __arch_swab32p ld_le32
|
||||
|
||||
static __inline__ void st_le32(volatile __u32 *addr, const __u32 val)
|
||||
{
|
||||
__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
|
||||
}
|
||||
|
||||
static inline void __arch_swab32s(__u32 *addr)
|
||||
{
|
||||
st_le32(addr, *addr);
|
||||
}
|
||||
#define __arch_swab32s __arch_swab32s
|
||||
|
||||
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;
|
||||
}
|
||||
#define __arch_swab16 __arch_swab16
|
||||
|
||||
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 __arch_swab32
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#ifndef __powerpc64__
|
||||
#define __SWAB_64_THRU_32__
|
||||
#endif /* __powerpc64__ */
|
||||
|
||||
#endif /* __GNUC__ */
|
||||
|
||||
#include <linux/byteorder.h>
|
||||
#include <asm/swab.h>
|
||||
#include <linux/byteorder/big_endian.h>
|
||||
|
||||
#endif /* _ASM_POWERPC_BYTEORDER_H */
|
||||
|
||||
90
arch/powerpc/include/asm/swab.h
Normal file
90
arch/powerpc/include/asm/swab.h
Normal file
@ -0,0 +1,90 @@
|
||||
#ifndef _ASM_POWERPC_SWAB_H
|
||||
#define _ASM_POWERPC_SWAB_H
|
||||
|
||||
/*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
|
||||
#include <asm/types.h>
|
||||
#include <linux/compiler.h>
|
||||
|
||||
#ifdef __GNUC__
|
||||
|
||||
#ifndef __powerpc64__
|
||||
#define __SWAB_64_THRU_32__
|
||||
#endif /* __powerpc64__ */
|
||||
|
||||
#ifdef __KERNEL__
|
||||
|
||||
static __inline__ __u16 ld_le16(const volatile __u16 *addr)
|
||||
{
|
||||
__u16 val;
|
||||
|
||||
__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
|
||||
return val;
|
||||
}
|
||||
#define __arch_swab16p ld_le16
|
||||
|
||||
static __inline__ void st_le16(volatile __u16 *addr, const __u16 val)
|
||||
{
|
||||
__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
|
||||
}
|
||||
|
||||
static inline void __arch_swab16s(__u16 *addr)
|
||||
{
|
||||
st_le16(addr, *addr);
|
||||
}
|
||||
#define __arch_swab16s __arch_swab16s
|
||||
|
||||
static __inline__ __u32 ld_le32(const volatile __u32 *addr)
|
||||
{
|
||||
__u32 val;
|
||||
|
||||
__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
|
||||
return val;
|
||||
}
|
||||
#define __arch_swab32p ld_le32
|
||||
|
||||
static __inline__ void st_le32(volatile __u32 *addr, const __u32 val)
|
||||
{
|
||||
__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
|
||||
}
|
||||
|
||||
static inline void __arch_swab32s(__u32 *addr)
|
||||
{
|
||||
st_le32(addr, *addr);
|
||||
}
|
||||
#define __arch_swab32s __arch_swab32s
|
||||
|
||||
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;
|
||||
}
|
||||
#define __arch_swab16 __arch_swab16
|
||||
|
||||
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 __arch_swab32
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#endif /* __GNUC__ */
|
||||
|
||||
#endif /* _ASM_POWERPC_SWAB_H */
|
||||
Loading…
Reference in New Issue
Block a user