1 /* SPDX-License-Identifier: GPL-2.0 */
3 #ifndef _ASM_IA64_MMIOWB_H
4 #define _ASM_IA64_MMIOWB_H
7 * mmiowb - I/O write barrier
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.
13 #define mmiowb() ia64_mfa()
15 #include <asm-generic/mmiowb.h>
17 #endif /* _ASM_IA64_MMIOWB_H */