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| /* SPDX-License-Identifier: GPL-2.0 */
| #ifndef __ASM_SH_CMPXCHG_CAS_H
| #define __ASM_SH_CMPXCHG_CAS_H
|
| static inline unsigned long
| __cmpxchg_u32(volatile u32 *m, unsigned long old, unsigned long new)
| {
| __asm__ __volatile__("cas.l %1,%0,@r0"
| : "+r"(new)
| : "r"(old), "z"(m)
| : "t", "memory" );
| return new;
| }
|
| static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
| {
| unsigned long old;
| do old = *m;
| while (__cmpxchg_u32(m, old, val) != old);
| return old;
| }
|
| #include <asm/cmpxchg-xchg.h>
|
| #endif /* __ASM_SH_CMPXCHG_CAS_H */
|
|
