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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __ARM_MMU_H
- #define __ARM_MMU_H
- #ifdef CONFIG_MMU
- typedef struct {
- #ifdef CONFIG_CPU_HAS_ASID
- atomic64_t id;
- #else
- int switch_pending;
- #endif
- atomic_t vmalloc_seq;
- unsigned long sigpage;
- #ifdef CONFIG_VDSO
- unsigned long vdso;
- #endif
- #ifdef CONFIG_BINFMT_ELF_FDPIC
- unsigned long exec_fdpic_loadmap;
- unsigned long interp_fdpic_loadmap;
- #endif
- } mm_context_t;
- #ifdef CONFIG_CPU_HAS_ASID
- #define ASID_BITS 8
- #define ASID_MASK ((~0ULL) << ASID_BITS)
- #define ASID(mm) ((unsigned int)((mm)->context.id.counter & ~ASID_MASK))
- #else
- #define ASID(mm) (0)
- #endif
- #else
- /*
- * From nommu.h:
- * Copyright (C) 2002, David McCullough <[email protected]>
- * modified for 2.6 by Hyok S. Choi <[email protected]>
- */
- typedef struct {
- unsigned long end_brk;
- #ifdef CONFIG_BINFMT_ELF_FDPIC
- unsigned long exec_fdpic_loadmap;
- unsigned long interp_fdpic_loadmap;
- #endif
- } mm_context_t;
- #endif
- #endif
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