| /* |
| * Memory barrier implementations for PKUnity SoC and UniCore ISA |
| * |
| * Copyright (C) 2001-2012 GUAN Xue-tao |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #ifndef __UNICORE_BARRIER_H__ |
| #define __UNICORE_BARRIER_H__ |
| |
| #define isb() __asm__ __volatile__ ("" : : : "memory") |
| #define dsb() __asm__ __volatile__ ("" : : : "memory") |
| #define dmb() __asm__ __volatile__ ("" : : : "memory") |
| |
| #define mb() barrier() |
| #define rmb() barrier() |
| #define wmb() barrier() |
| #define smp_mb() barrier() |
| #define smp_rmb() barrier() |
| #define smp_wmb() barrier() |
| #define read_barrier_depends() do { } while (0) |
| #define smp_read_barrier_depends() do { } while (0) |
| |
| #define set_mb(var, value) do { var = value; smp_mb(); } while (0) |
| |
| #endif /* __UNICORE_BARRIER_H__ */ |
