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