mte-def.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (C) 2020 ARM Ltd.
 4 */
 5#ifndef __ASM_MTE_DEF_H
 6#define __ASM_MTE_DEF_H
 7
 8#define MTE_GRANULE_SIZE	UL(16)
 9#define MTE_GRANULE_MASK	(~(MTE_GRANULE_SIZE - 1))
10#define MTE_GRANULES_PER_PAGE	(PAGE_SIZE / MTE_GRANULE_SIZE)
11#define MTE_TAG_SHIFT		56
12#define MTE_TAG_SIZE		4
13#define MTE_TAG_MASK		GENMASK((MTE_TAG_SHIFT + (MTE_TAG_SIZE - 1)), MTE_TAG_SHIFT)
14#define MTE_PAGE_TAG_STORAGE	(MTE_GRANULES_PER_PAGE * MTE_TAG_SIZE / 8)
15
16#define __MTE_PREAMBLE		ARM64_ASM_PREAMBLE ".arch_extension memtag\n"
17
18#endif /* __ASM_MTE_DEF_H  */