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-rw-r--r--kernel/arch/arm64/include/asm/mmu.h38
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