tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License
4 * as published by the Free Software Foundation; either version
5 * 2 of the License, or (at your option) any later version.
6 */
7#ifndef _ASM_POWERPC_SWAB_H
8#define _ASM_POWERPC_SWAB_H
9
10#include <uapi/asm/swab.h>
11
12static __inline__ __u16 ld_le16(const volatile __u16 *addr)
13{
14 __u16 val;
15
16 __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
17 return val;
18}
19
20static __inline__ void st_le16(volatile __u16 *addr, const __u16 val)
21{
22 __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
23}
24
25static __inline__ __u32 ld_le32(const volatile __u32 *addr)
26{
27 __u32 val;
28
29 __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
30 return val;
31}
32
33static __inline__ void st_le32(volatile __u32 *addr, const __u32 val)
34{
35 __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
36}
37
38#endif /* _ASM_POWERPC_SWAB_H */