arch/arm/mach-omap2/include/mach/barriers.h

   1 /*
   2  * OMAP memory barrier header.
   3  *
   4  * Copyright (C) 2011 Texas Instruments, Inc.
   5  *  Santosh Shilimkar <santosh.shilimkar@ti.com>
   6  *  Richard Woodruff <r-woodruff2@ti.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20  */
  21
  22 #ifndef __MACH_BARRIERS_H
  23 #define __MACH_BARRIERS_H
  24
  25 extern void omap_bus_sync(void);
  26
  27 #define rmb()           dsb()
  28 #define wmb()           do { dsb(); outer_sync(); omap_bus_sync(); } while (0)
  29 #define mb()            wmb()
  30
  31 #endif  /* __MACH_BARRIERS_H */