release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/include/asm/wbflush.h

   1 /*
   2  * Header file for using the wbflush routine
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * Copyright (c) 1998 Harald Koerfgen
   9  * Copyright (C) 2002 Maciej W. Rozycki
  10  */
  11 #ifndef _ASM_WBFLUSH_H
  12 #define _ASM_WBFLUSH_H
  13
  14
  15 #ifdef CONFIG_CPU_HAS_WB
  16
  17 extern void (*__wbflush)(void);
  18 extern void wbflush_setup(void);
  19
  20 #define wbflush()                       \
  21         do {                            \
  22                 __sync();               \
  23                 __wbflush();            \
  24         } while (0)
  25
  26 #else /* !CONFIG_CPU_HAS_WB */
  27
  28 #define wbflush_setup() do { } while (0)
  29
  30 #define wbflush() fast_iob()
  31
  32 #endif /* !CONFIG_CPU_HAS_WB */
  33
  34 #endif /* _ASM_WBFLUSH_H */