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1/* SPDX-License-Identifier: GPL-2.0 */2/* Copyright (C) 2020 ARM Limited */3 4/*5 * Below definitions may be found in kernel headers, However, they are6 * redefined here to decouple the MTE selftests compilations from them.7 */8#ifndef SEGV_MTEAERR9#define SEGV_MTEAERR 810#endif11#ifndef SEGV_MTESERR12#define SEGV_MTESERR 913#endif14#ifndef PROT_MTE15#define PROT_MTE 0x2016#endif17#ifndef HWCAP2_MTE18#define HWCAP2_MTE (1 << 18)19#endif20 21#ifndef PR_MTE_TCF_SHIFT22#define PR_MTE_TCF_SHIFT 123#endif24#ifndef PR_MTE_TCF_NONE25#define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)26#endif27#ifndef PR_MTE_TCF_SYNC28#define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)29#endif30#ifndef PR_MTE_TCF_ASYNC31#define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)32#endif33#ifndef PR_MTE_TAG_SHIFT34#define PR_MTE_TAG_SHIFT 335#endif36 37/* MTE Hardware feature definitions below. */38#define MT_TAG_SHIFT 5639#define MT_TAG_MASK 0xFUL40#define MT_FREE_TAG 0x0UL41#define MT_GRANULE_SIZE 1642#define MT_TAG_COUNT 1643#define MT_INCLUDE_TAG_MASK 0xFFFF44#define MT_EXCLUDE_TAG_MASK 0x045 46#define MT_ALIGN_GRANULE (MT_GRANULE_SIZE - 1)47#define MT_CLEAR_TAG(x) ((x) & ~(MT_TAG_MASK << MT_TAG_SHIFT))48#define MT_SET_TAG(x, y) ((x) | (y << MT_TAG_SHIFT))49#define MT_FETCH_TAG(x) ((x >> MT_TAG_SHIFT) & (MT_TAG_MASK))50#define MT_ALIGN_UP(x) ((x + MT_ALIGN_GRANULE) & ~(MT_ALIGN_GRANULE))51 52#define MT_PSTATE_TCO_SHIFT 2553#define MT_PSTATE_TCO_MASK ~(0x1 << MT_PSTATE_TCO_SHIFT)54#define MT_PSTATE_TCO_EN 155#define MT_PSTATE_TCO_DIS 056 57#define MT_EXCLUDE_TAG(x) (1 << (x))58#define MT_INCLUDE_VALID_TAG(x) (MT_INCLUDE_TAG_MASK ^ MT_EXCLUDE_TAG(x))59#define MT_INCLUDE_VALID_TAGS(x) (MT_INCLUDE_TAG_MASK ^ (x))60#define MTE_ALLOW_NON_ZERO_TAG MT_INCLUDE_VALID_TAG(0)61