root/arch/ia64/include/asm/mmiowb.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 
   3 #ifndef _ASM_IA64_MMIOWB_H
   4 #define _ASM_IA64_MMIOWB_H
   5 
   6 /**
   7  * mmiowb - I/O write barrier
   8  *
   9  * Ensure ordering of I/O space writes.  This will make sure that writes
  10  * following the barrier will arrive after all previous writes.  For most
  11  * ia64 platforms, this is a simple 'mf.a' instruction.
  12  */
  13 #define mmiowb()        ia64_mfa()
  14 
  15 #include <asm-generic/mmiowb.h>
  16 
  17 #endif  /* _ASM_IA64_MMIOWB_H */