716821c943
The generic code uses gcc built-ins which work fine so there's no benefit in implementing our own anymore. We can't completely remove the ld/st_le* functions as some historical cruft still uses them, but that's next on the radar Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
38 lines
1 KiB
C
38 lines
1 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
#ifndef _ASM_POWERPC_SWAB_H
|
|
#define _ASM_POWERPC_SWAB_H
|
|
|
|
#include <uapi/asm/swab.h>
|
|
|
|
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;
|
|
}
|
|
|
|
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__ __u32 ld_le32(const volatile __u32 *addr)
|
|
{
|
|
__u32 val;
|
|
|
|
__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
|
|
return val;
|
|
}
|
|
|
|
static __inline__ void st_le32(volatile __u32 *addr, const __u32 val)
|
|
{
|
|
__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
|
|
}
|
|
|
|
#endif /* _ASM_POWERPC_SWAB_H */
|