| /* 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 */ |
