lib/xlat_tables/xlat_tables_private.h

   1 /*
   2  * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
   3  *
   4  * SPDX-License-Identifier: BSD-3-Clause
   5  */
   6
   7 #ifndef XLAT_TABLES_PRIVATE_H
   8 #define XLAT_TABLES_PRIVATE_H
   9
  10 #include <cassert.h>
  11 #include <platform_def.h>
  12 #include <xlat_tables_arch.h>
  13
  14 #if HW_ASSISTED_COHERENCY
  15 #error xlat tables v2 must be used with HW_ASSISTED_COHERENCY
  16 #endif
  17
  18 CASSERT(CHECK_VIRT_ADDR_SPACE_SIZE(PLAT_VIRT_ADDR_SPACE_SIZE),
  19         assert_valid_virt_addr_space_size);
  20
  21 CASSERT(CHECK_PHY_ADDR_SPACE_SIZE(PLAT_PHY_ADDR_SPACE_SIZE),
  22         assert_valid_phy_addr_space_size);
  23
  24 /* Alias to retain compatibility with the old #define name */
  25 #define XLAT_BLOCK_LEVEL_MIN    MIN_LVL_BLOCK_DESC
  26
  27 void print_mmap(void);
  28
  29 /* Returns the current Exception Level. The returned EL must be 1 or higher. */
  30 unsigned int xlat_arch_current_el(void);
  31
  32 /*
  33  * Returns the bit mask that has to be ORed to the rest of a translation table
  34  * descriptor so that execution of code is prohibited at the given Exception
  35  * Level.
  36  */
  37 uint64_t xlat_arch_get_xn_desc(unsigned int el);
  38
  39 void init_xlation_table(uintptr_t base_va, uint64_t *table,
  40                         unsigned int level, uintptr_t *max_va,
  41                         unsigned long long *max_pa);
  42
  43 #endif /* XLAT_TABLES_PRIVATE_H */