162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci#ifndef __ASM_SH_ATOMIC_H 362306a36Sopenharmony_ci#define __ASM_SH_ATOMIC_H 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci#if defined(CONFIG_CPU_J2) 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#include <asm-generic/atomic.h> 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#else 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci/* 1262306a36Sopenharmony_ci * Atomic operations that C can't guarantee us. Useful for 1362306a36Sopenharmony_ci * resource counting etc.. 1462306a36Sopenharmony_ci * 1562306a36Sopenharmony_ci */ 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci#include <linux/compiler.h> 1862306a36Sopenharmony_ci#include <linux/types.h> 1962306a36Sopenharmony_ci#include <asm/cmpxchg.h> 2062306a36Sopenharmony_ci#include <asm/barrier.h> 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci#define arch_atomic_read(v) READ_ONCE((v)->counter) 2362306a36Sopenharmony_ci#define arch_atomic_set(v,i) WRITE_ONCE((v)->counter, (i)) 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci#if defined(CONFIG_GUSA_RB) 2662306a36Sopenharmony_ci#include <asm/atomic-grb.h> 2762306a36Sopenharmony_ci#elif defined(CONFIG_CPU_SH4A) 2862306a36Sopenharmony_ci#include <asm/atomic-llsc.h> 2962306a36Sopenharmony_ci#else 3062306a36Sopenharmony_ci#include <asm/atomic-irq.h> 3162306a36Sopenharmony_ci#endif 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci#endif /* CONFIG_CPU_J2 */ 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ci#endif /* __ASM_SH_ATOMIC_H */ 36