18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci#ifndef __ARM_MMU_H 38c2ecf20Sopenharmony_ci#define __ARM_MMU_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci#ifdef CONFIG_MMU 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_citypedef struct { 88c2ecf20Sopenharmony_ci#ifdef CONFIG_CPU_HAS_ASID 98c2ecf20Sopenharmony_ci atomic64_t id; 108c2ecf20Sopenharmony_ci#else 118c2ecf20Sopenharmony_ci int switch_pending; 128c2ecf20Sopenharmony_ci#endif 138c2ecf20Sopenharmony_ci unsigned int vmalloc_seq; 148c2ecf20Sopenharmony_ci unsigned long sigpage; 158c2ecf20Sopenharmony_ci#ifdef CONFIG_VDSO 168c2ecf20Sopenharmony_ci unsigned long vdso; 178c2ecf20Sopenharmony_ci#endif 188c2ecf20Sopenharmony_ci#ifdef CONFIG_BINFMT_ELF_FDPIC 198c2ecf20Sopenharmony_ci unsigned long exec_fdpic_loadmap; 208c2ecf20Sopenharmony_ci unsigned long interp_fdpic_loadmap; 218c2ecf20Sopenharmony_ci#endif 228c2ecf20Sopenharmony_ci} mm_context_t; 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_ci#ifdef CONFIG_CPU_HAS_ASID 258c2ecf20Sopenharmony_ci#define ASID_BITS 8 268c2ecf20Sopenharmony_ci#define ASID_MASK ((~0ULL) << ASID_BITS) 278c2ecf20Sopenharmony_ci#define ASID(mm) ((unsigned int)((mm)->context.id.counter & ~ASID_MASK)) 288c2ecf20Sopenharmony_ci#else 298c2ecf20Sopenharmony_ci#define ASID(mm) (0) 308c2ecf20Sopenharmony_ci#endif 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ci#else 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci/* 358c2ecf20Sopenharmony_ci * From nommu.h: 368c2ecf20Sopenharmony_ci * Copyright (C) 2002, David McCullough <davidm@snapgear.com> 378c2ecf20Sopenharmony_ci * modified for 2.6 by Hyok S. Choi <hyok.choi@samsung.com> 388c2ecf20Sopenharmony_ci */ 398c2ecf20Sopenharmony_citypedef struct { 408c2ecf20Sopenharmony_ci unsigned long end_brk; 418c2ecf20Sopenharmony_ci#ifdef CONFIG_BINFMT_ELF_FDPIC 428c2ecf20Sopenharmony_ci unsigned long exec_fdpic_loadmap; 438c2ecf20Sopenharmony_ci unsigned long interp_fdpic_loadmap; 448c2ecf20Sopenharmony_ci#endif 458c2ecf20Sopenharmony_ci} mm_context_t; 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ci#endif 488c2ecf20Sopenharmony_ci 498c2ecf20Sopenharmony_ci#endif 50