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 */ 18