tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2012 ARM Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16#ifndef __ASM_MMU_H
17#define __ASM_MMU_H
18
19typedef struct {
20 unsigned int id;
21 raw_spinlock_t id_lock;
22 void *vdso;
23} mm_context_t;
24
25#define INIT_MM_CONTEXT(name) \
26 .context.id_lock = __RAW_SPIN_LOCK_UNLOCKED(name.context.id_lock),
27
28#define ASID(mm) ((mm)->context.id & 0xffff)
29
30extern void paging_init(void);
31extern void __iomem *early_io_map(phys_addr_t phys, unsigned long virt);
32extern void init_mem_pgprot(void);
33extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys,
34 unsigned long virt, phys_addr_t size,
35 pgprot_t prot);
36extern void *fixmap_remap_fdt(phys_addr_t dt_phys);
37
38#endif