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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/ia64/include/asm/mmiowb.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/ia64/include/asm/mmiowb.h')
-rw-r--r-- | arch/ia64/include/asm/mmiowb.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/mmiowb.h b/arch/ia64/include/asm/mmiowb.h new file mode 100644 index 000000000..d67aab4ea --- /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 <asm-generic/mmiowb.h> + +#endif /* _ASM_IA64_MMIOWB_H */ |