| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef __ASM_SH_ATOMIC_H | |
| #define __ASM_SH_ATOMIC_H | |
| #if defined(CONFIG_CPU_J2) | |
| #include <asm-generic/atomic.h> | |
| #else | |
| /* | |
| * Atomic operations that C can't guarantee us. Useful for | |
| * resource counting etc.. | |
| * | |
| */ | |
| #include <linux/compiler.h> | |
| #include <linux/types.h> | |
| #include <asm/cmpxchg.h> | |
| #include <asm/barrier.h> | |
| #define arch_atomic_read(v) READ_ONCE((v)->counter) | |
| #define arch_atomic_set(v,i) WRITE_ONCE((v)->counter, (i)) | |
| #if defined(CONFIG_GUSA_RB) | |
| #include <asm/atomic-grb.h> | |
| #elif defined(CONFIG_CPU_SH4A) | |
| #include <asm/atomic-llsc.h> | |
| #else | |
| #include <asm/atomic-irq.h> | |
| #endif | |
| #endif /* CONFIG_CPU_J2 */ | |
| #endif /* __ASM_SH_ATOMIC_H */ |