/* 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 */