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 19*5ce93ab6SYury Norov #define MMCF_AARCH32 0x1 /* mm context flag for AArch32 executables */ 20*5ce93ab6SYury Norov 214f04d8f0SCatalin Marinas typedef struct { 225aec715dSWill Deacon atomic64_t id; 234f04d8f0SCatalin Marinas void *vdso; 2406beb72fSPratyush Anand unsigned long flags; 254f04d8f0SCatalin Marinas } mm_context_t; 264f04d8f0SCatalin Marinas 275aec715dSWill Deacon /* 285aec715dSWill Deacon * This macro is only used by the TLBI code, which cannot race with an 295aec715dSWill Deacon * ASID change and therefore doesn't need to reload the counter using 305aec715dSWill Deacon * atomic64_read. 315aec715dSWill Deacon */ 325aec715dSWill Deacon #define ASID(mm) ((mm)->context.id.counter & 0xffff) 334f04d8f0SCatalin Marinas 344f04d8f0SCatalin Marinas extern void paging_init(void); 353194ac6eSDavid Daney extern void bootmem_init(void); 362475ff9dSCatalin Marinas extern void __iomem *early_io_map(phys_addr_t phys, unsigned long virt); 370bf757c7SMark Salter extern void init_mem_pgprot(void); 388ce837ceSArd Biesheuvel extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys, 398ce837ceSArd Biesheuvel unsigned long virt, phys_addr_t size, 40f14c66ceSArd Biesheuvel pgprot_t prot, bool page_mappings_only); 4161bd93ceSArd Biesheuvel extern void *fixmap_remap_fdt(phys_addr_t dt_phys); 425ea5306cSArd Biesheuvel extern void mark_linear_text_alias_ro(void); 434f04d8f0SCatalin Marinas 444f04d8f0SCatalin Marinas #endif 45