diff options
Diffstat (limited to 'kernel/arch/arm64/include/asm/mmu.h')
| -rw-r--r-- | kernel/arch/arm64/include/asm/mmu.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/kernel/arch/arm64/include/asm/mmu.h b/kernel/arch/arm64/include/asm/mmu.h new file mode 100644 index 000000000..3d311761e --- /dev/null +++ b/kernel/arch/arm64/include/asm/mmu.h @@ -0,0 +1,38 @@ +/* + * 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 { + unsigned int id; + raw_spinlock_t id_lock; + void *vdso; +} mm_context_t; + +#define INIT_MM_CONTEXT(name) \ + .context.id_lock = __RAW_SPIN_LOCK_UNLOCKED(name.context.id_lock), + +#define ASID(mm) ((mm)->context.id & 0xffff) + +extern void paging_init(void); +extern void setup_mm_for_reboot(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); + +#endif |