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/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __XLAT_TABLES_H__
#define __XLAT_TABLES_H__
#include <stdint.h>
/*
* Flags for building up memory mapping attributes.
* These are organised so that a clear bit gives a more restrictive mapping
* that a set bit, that way a bitwise-and two sets of attributes will never give
* an attribute which has greater access rights that any of the original
* attributes.
*/
typedef enum {
MT_DEVICE = 0 << 0,
MT_MEMORY = 1 << 0,
MT_RO = 0 << 1,
MT_RW = 1 << 1,
MT_SECURE = 0 << 2,
MT_NS = 1 << 2
} mmap_attr_t;
/*
* Structure for specifying a single region of memory.
*/
typedef struct mmap_region {
unsigned long base;
unsigned long size;
mmap_attr_t attr;
} mmap_region_t;
void mmap_add_region(unsigned long base, unsigned long size,
unsigned attr);
void mmap_add(const mmap_region_t *mm);
void init_xlat_tables(void);
void enable_mmu_el1(void);
void enable_mmu_el3(void);
#endif /* __XLAT_TABLES_H__ */