OpenCloudOS-Kernel/arch/ia64/include/asm/mmiowb.h

18 lines
433 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_MMIOWB_H
#define _ASM_IA64_MMIOWB_H
/**
* mmiowb - I/O write barrier
*
* Ensure ordering of I/O space writes. This will make sure that writes
* following the barrier will arrive after all previous writes. For most
* ia64 platforms, this is a simple 'mf.a' instruction.
*/
#define mmiowb() ia64_mfa()
#include <asm-generic/mmiowb.h>
#endif /* _ASM_IA64_MMIOWB_H */