arch/c6x/include/asm/barrier.h

   1 /*
   2  *  Port on Texas Instruments TMS320C6x architecture
   3  *
   4  *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
   5  *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  */
  11 #ifndef _ASM_C6X_BARRIER_H
  12 #define _ASM_C6X_BARRIER_H
  13
  14 #define nop()                    asm("NOP\n");
  15
  16 #define mb()                     barrier()
  17 #define rmb()                    barrier()
  18 #define wmb()                    barrier()
  19 #define set_mb(var, value)       do { var = value;  mb(); } while (0)
  20 #define set_wmb(var, value)      do { var = value; wmb(); } while (0)
  21
  22 #define smp_mb()                 barrier()
  23 #define smp_rmb()                barrier()
  24 #define smp_wmb()                barrier()
  25 #define smp_read_barrier_depends()      do { } while (0)
  26
  27 #endif /* _ASM_C6X_BARRIER_H */