97 lines
3.5 KiB
C
97 lines
3.5 KiB
C
/*
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* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __XLAT_TABLES_PRIVATE_H__
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#define __XLAT_TABLES_PRIVATE_H__
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#include <cassert.h>
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#include <platform_def.h>
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#include <utils_def.h>
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/*
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* If the platform hasn't defined a physical and a virtual address space size
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* default to ADDR_SPACE_SIZE.
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*/
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#if ERROR_DEPRECATED
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# ifdef ADDR_SPACE_SIZE
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# error "ADDR_SPACE_SIZE is deprecated. Use PLAT_xxx_ADDR_SPACE_SIZE instead."
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# endif
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#elif defined(ADDR_SPACE_SIZE)
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# ifndef PLAT_PHY_ADDR_SPACE_SIZE
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# define PLAT_PHY_ADDR_SPACE_SIZE ADDR_SPACE_SIZE
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# endif
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# ifndef PLAT_VIRT_ADDR_SPACE_SIZE
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# define PLAT_VIRT_ADDR_SPACE_SIZE ADDR_SPACE_SIZE
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# endif
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#endif
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/* The virtual and physical address space sizes must be powers of two. */
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CASSERT(IS_POWER_OF_TWO(PLAT_VIRT_ADDR_SPACE_SIZE),
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assert_valid_virt_addr_space_size);
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CASSERT(IS_POWER_OF_TWO(PLAT_PHY_ADDR_SPACE_SIZE),
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assert_valid_phy_addr_space_size);
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/*
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* In AArch32 state, the MMU only supports 4KB page granularity, which means
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* that the first translation table level is either 1 or 2. Both of them are
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* allowed to have block and table descriptors. See section G4.5.6 of the
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* ARMv8-A Architecture Reference Manual (DDI 0487A.k) for more information.
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*
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* In AArch64 state, the MMU may support 4 KB, 16 KB and 64 KB page
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* granularity. For 4KB granularity, a level 0 table descriptor doesn't support
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* block translation. For 16KB, the same thing happens to levels 0 and 1. For
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* 64KB, same for level 1. See section D4.3.1 of the ARMv8-A Architecture
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* Reference Manual (DDI 0487A.k) for more information.
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*
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* The define below specifies the first table level that allows block
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* descriptors.
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*/
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#ifdef AARCH32
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# define XLAT_BLOCK_LEVEL_MIN 1
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#else /* if AArch64 */
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# if PAGE_SIZE == (4*1024) /* 4KB */
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# define XLAT_BLOCK_LEVEL_MIN 1
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# else /* 16KB or 64KB */
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# define XLAT_BLOCK_LEVEL_MIN 2
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# endif
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#endif /* AARCH32 */
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void print_mmap(void);
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void init_xlation_table(uintptr_t base_va, uint64_t *table,
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int level, uintptr_t *max_va,
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unsigned long long *max_pa);
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#endif /* __XLAT_TABLES_PRIVATE_H__ */
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