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64ee263e20
Having an active stack while enabling MMU has shown coherency problems. This patch builds on top of translation library changes that introduces MMU-enabling without using stacks. Previously, with HW_ASSISTED_COHERENCY, data caches were disabled while enabling MMU only because of active stack. Now that we can enable MMU without using stack, we can enable both MMU and data caches at the same time. NOTE: Since this feature depends on using translation table library v2, disallow using translation table library v1 with HW_ASSISTED_COHERENCY. Fixes ARM-software/tf-issues#566 Change-Id: Ie55aba0c23ee9c5109eb3454cb8fa45d74f8bbb2 Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
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* Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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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 <xlat_tables_arch.h>
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#if HW_ASSISTED_COHERENCY
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#error xlat tables v2 must be used with HW_ASSISTED_COHERENCY
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#endif
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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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CASSERT(CHECK_VIRT_ADDR_SPACE_SIZE(PLAT_VIRT_ADDR_SPACE_SIZE),
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assert_valid_virt_addr_space_size);
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CASSERT(CHECK_PHY_ADDR_SPACE_SIZE(PLAT_PHY_ADDR_SPACE_SIZE),
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assert_valid_phy_addr_space_size);
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/* Alias to retain compatibility with the old #define name */
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#define XLAT_BLOCK_LEVEL_MIN MIN_LVL_BLOCK_DESC
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void print_mmap(void);
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/* Returns the current Exception Level. The returned EL must be 1 or higher. */
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int xlat_arch_current_el(void);
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/*
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* Returns the bit mask that has to be ORed to the rest of a translation table
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* descriptor so that execution of code is prohibited at the given Exception
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* Level.
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*/
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uint64_t xlat_arch_get_xn_desc(int el);
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void init_xlation_table(uintptr_t base_va, uint64_t *table,
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unsigned 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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