1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _ASM_RISCV_FENCE_H
#define _ASM_RISCV_FENCE_H
#define RISCV_FENCE_ASM(p, s) "\tfence " #p "," #s "\n"
#define RISCV_FENCE(p, s) \
({ __asm__ __volatile__ (RISCV_FENCE_ASM(p, s) : : : "memory"); })
#ifdef CONFIG_SMP
#define RISCV_ACQUIRE_BARRIER RISCV_FENCE_ASM(r, rw)
#define RISCV_RELEASE_BARRIER RISCV_FENCE_ASM(rw, w)
#define RISCV_FULL_BARRIER RISCV_FENCE_ASM(rw, rw)
#else
#define RISCV_ACQUIRE_BARRIER
#define RISCV_RELEASE_BARRIER
#define RISCV_FULL_BARRIER
#endif
#endif /* _ASM_RISCV_FENCE_H */