include/asm-mips/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 #include <linux/config.h>
  15
  16 #ifdef CONFIG_CPU_HAS_WB
  17
  18 extern void (*__wbflush)(void);
  19 extern void wbflush_setup(void);
  20
  21 #define wbflush()                       \
  22         do {                            \
  23                 __sync();               \
  24                 __wbflush();            \
  25         } while (0)
  26
  27 #else /* !CONFIG_CPU_HAS_WB */
  28
  29 #define wbflush_setup() do { } while (0)
  30
  31 #define wbflush() fast_iob()
  32
  33 #endif /* !CONFIG_CPU_HAS_WB */
  34
  35 #endif /* _ASM_WBFLUSH_H */