1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun #ifndef _ASM_IA64_MMIOWB_H 4*4882a593Smuzhiyun #define _ASM_IA64_MMIOWB_H 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun /** 7*4882a593Smuzhiyun * mmiowb - I/O write barrier 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * Ensure ordering of I/O space writes. This will make sure that writes 10*4882a593Smuzhiyun * following the barrier will arrive after all previous writes. For most 11*4882a593Smuzhiyun * ia64 platforms, this is a simple 'mf.a' instruction. 12*4882a593Smuzhiyun */ 13*4882a593Smuzhiyun #define mmiowb() ia64_mfa() 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #include <asm-generic/mmiowb.h> 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun #endif /* _ASM_IA64_MMIOWB_H */ 18