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Linux kernel mirror (for testing)
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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 */