From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/ia64/include/asm/mmiowb.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 arch/ia64/include/asm/mmiowb.h (limited to 'arch/ia64/include/asm/mmiowb.h') diff --git a/arch/ia64/include/asm/mmiowb.h b/arch/ia64/include/asm/mmiowb.h new file mode 100644 index 0000000000..d67aab4ea3 --- /dev/null +++ b/arch/ia64/include/asm/mmiowb.h @@ -0,0 +1,17 @@ +/* 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 + +#endif /* _ASM_IA64_MMIOWB_H */ -- cgit v1.2.3