| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2020 ARM Ltd. |
| */ |
| #ifndef __ASM_MTE_DEF_H |
| #define __ASM_MTE_DEF_H |
| |
| #define MTE_GRANULE_SIZE UL(16) |
| #define MTE_GRANULE_MASK (~(MTE_GRANULE_SIZE - 1)) |
| #define MTE_GRANULES_PER_PAGE (PAGE_SIZE / MTE_GRANULE_SIZE) |
| #define MTE_TAG_SHIFT 56 |
| #define MTE_TAG_SIZE 4 |
| #define MTE_TAG_MASK GENMASK((MTE_TAG_SHIFT + (MTE_TAG_SIZE - 1)), MTE_TAG_SHIFT) |
| #define MTE_PAGE_TAG_STORAGE (MTE_GRANULES_PER_PAGE * MTE_TAG_SIZE / 8) |
| |
| #define __MTE_PREAMBLE ARM64_ASM_PREAMBLE ".arch_extension memtag\n" |
| |
| #endif /* __ASM_MTE_DEF_H */ |
