| /* |
| * Copyright (C) 2012 ARM Ltd. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| #ifndef __ASM_MMU_H |
| #define __ASM_MMU_H |
| |
| typedef struct { |
| atomic64_t id; |
| void *vdso; |
| } mm_context_t; |
| |
| /* |
| * This macro is only used by the TLBI code, which cannot race with an |
| * ASID change and therefore doesn't need to reload the counter using |
| * atomic64_read. |
| */ |
| #define ASID(mm) ((mm)->context.id.counter & 0xffff) |
| |
| extern void paging_init(void); |
| extern void __iomem *early_io_map(phys_addr_t phys, unsigned long virt); |
| extern void init_mem_pgprot(void); |
| extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys, |
| unsigned long virt, phys_addr_t size, |
| pgprot_t prot); |
| extern void *fixmap_remap_fdt(phys_addr_t dt_phys); |
| |
| #endif |
