14f04d8f0SCatalin Marinas /* 24f04d8f0SCatalin Marinas * Copyright (C) 2012 ARM Ltd. 34f04d8f0SCatalin Marinas * 44f04d8f0SCatalin Marinas * This program is free software; you can redistribute it and/or modify 54f04d8f0SCatalin Marinas * it under the terms of the GNU General Public License version 2 as 64f04d8f0SCatalin Marinas * published by the Free Software Foundation. 74f04d8f0SCatalin Marinas * 84f04d8f0SCatalin Marinas * This program is distributed in the hope that it will be useful, 94f04d8f0SCatalin Marinas * but WITHOUT ANY WARRANTY; without even the implied warranty of 104f04d8f0SCatalin Marinas * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 114f04d8f0SCatalin Marinas * GNU General Public License for more details. 124f04d8f0SCatalin Marinas * 134f04d8f0SCatalin Marinas * You should have received a copy of the GNU General Public License 144f04d8f0SCatalin Marinas * along with this program. If not, see <http://www.gnu.org/licenses/>. 154f04d8f0SCatalin Marinas */ 164f04d8f0SCatalin Marinas #ifndef __ASM_MMU_H 174f04d8f0SCatalin Marinas #define __ASM_MMU_H 184f04d8f0SCatalin Marinas 194f04d8f0SCatalin Marinas typedef struct { 204f04d8f0SCatalin Marinas unsigned int id; 214f04d8f0SCatalin Marinas raw_spinlock_t id_lock; 224f04d8f0SCatalin Marinas void *vdso; 234f04d8f0SCatalin Marinas } mm_context_t; 244f04d8f0SCatalin Marinas 258f071203SLeo Yan #define INIT_MM_CONTEXT(name) \ 268f071203SLeo Yan .context.id_lock = __RAW_SPIN_LOCK_UNLOCKED(name.context.id_lock), 278f071203SLeo Yan 284f04d8f0SCatalin Marinas #define ASID(mm) ((mm)->context.id & 0xffff) 294f04d8f0SCatalin Marinas 304f04d8f0SCatalin Marinas extern void paging_init(void); 314f04d8f0SCatalin Marinas extern void setup_mm_for_reboot(void); 322475ff9dSCatalin Marinas extern void __iomem *early_io_map(phys_addr_t phys, unsigned long virt); 330bf757c7SMark Salter extern void init_mem_pgprot(void); 34d7ecbddfSMark Salter /* create an identity mapping for memory (or io if map_io is true) */ 35d7ecbddfSMark Salter extern void create_id_mapping(phys_addr_t addr, phys_addr_t size, int map_io); 36*8ce837ceSArd Biesheuvel extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys, 37*8ce837ceSArd Biesheuvel unsigned long virt, phys_addr_t size, 38*8ce837ceSArd Biesheuvel pgprot_t prot); 394f04d8f0SCatalin Marinas 404f04d8f0SCatalin Marinas #endif 41