/** @file * * Copyright (c) 2011-2012, ARM Limited. All rights reserved. * * This program and the accompanying materials * are licensed and made available under the terms and conditions of the BSD License * which accompanies this distribution. The full text of the license may be found at * http://opensource.org/licenses/bsd-license.php * * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. * **/ #ifndef __ARMV7_MMU_H_ #define __ARMV7_MMU_H_ #define TTBR_NOT_OUTER_SHAREABLE BIT5 #define TTBR_RGN_OUTER_NON_CACHEABLE 0 #define TTBR_RGN_OUTER_WRITE_BACK_ALLOC BIT3 #define TTBR_RGN_OUTER_WRITE_THROUGH BIT4 #define TTBR_RGN_OUTER_WRITE_BACK_NO_ALLOC (BIT3|BIT4) #define TTBR_SHAREABLE BIT1 #define TTBR_NON_SHAREABLE 0 #define TTBR_INNER_CACHEABLE BIT0 #define TTBR_NON_INNER_CACHEABLE BIT0 #define TTBR_RGN_INNER_NON_CACHEABLE 0 #define TTBR_RGN_INNER_WRITE_BACK_ALLOC BIT6 #define TTBR_RGN_INNER_WRITE_THROUGH BIT0 #define TTBR_RGN_INNER_WRITE_BACK_NO_ALLOC (BIT0|BIT6) #define TTBR_WRITE_THROUGH_NO_ALLOC ( TTBR_RGN_OUTER_WRITE_BACK_ALLOC | TTBR_RGN_INNER_WRITE_BACK_ALLOC ) #define TTBR_WRITE_BACK_NO_ALLOC ( TTBR_RGN_OUTER_WRITE_BACK_NO_ALLOC | TTBR_RGN_INNER_WRITE_BACK_NO_ALLOC ) #define TTBR_NON_CACHEABLE ( TTBR_RGN_OUTER_NON_CACHEABLE | TTBR_RGN_INNER_NON_CACHEABLE ) #define TTBR_WRITE_BACK_ALLOC ( TTBR_RGN_OUTER_WRITE_BACK_ALLOC | TTBR_RGN_INNER_WRITE_BACK_ALLOC ) #define TRANSLATION_TABLE_SECTION_COUNT 4096 #define TRANSLATION_TABLE_SECTION_SIZE (sizeof(UINT32) * TRANSLATION_TABLE_SECTION_COUNT) #define TRANSLATION_TABLE_SECTION_ALIGNMENT (sizeof(UINT32) * TRANSLATION_TABLE_SECTION_COUNT) #define TRANSLATION_TABLE_SECTION_ALIGNMENT_MASK (TRANSLATION_TABLE_SECTION_ALIGNMENT - 1) #define TRANSLATION_TABLE_PAGE_COUNT 256 #define TRANSLATION_TABLE_PAGE_SIZE (sizeof(UINT32) * TRANSLATION_TABLE_PAGE_COUNT) #define TRANSLATION_TABLE_PAGE_ALIGNMENT (sizeof(UINT32) * TRANSLATION_TABLE_PAGE_COUNT) #define TRANSLATION_TABLE_PAGE_ALIGNMENT_MASK (TRANSLATION_TABLE_PAGE_ALIGNMENT - 1) #define TRANSLATION_TABLE_ENTRY_FOR_VIRTUAL_ADDRESS(table, address) ((UINT32 *)(table) + (((UINTN)(address)) >> 20)) // Translation table descriptor types #define TT_DESCRIPTOR_SECTION_TYPE_MASK ((1UL << 18) | (3UL << 0)) #define TT_DESCRIPTOR_SECTION_TYPE_FAULT (0UL << 0) #define TT_DESCRIPTOR_SECTION_TYPE_PAGE_TABLE (1UL << 0) #define TT_DESCRIPTOR_SECTION_TYPE_SECTION ((0UL << 18) | (2UL << 0)) #define TT_DESCRIPTOR_SECTION_TYPE_SUPERSECTION ((1UL << 18) | (2UL << 0)) #define TT_DESCRIPTOR_SECTION_TYPE_IS_PAGE_TABLE(Desc) (((Desc) & 3UL) == TT_DESCRIPTOR_SECTION_TYPE_PAGE_TABLE) // Translation table descriptor types #define TT_DESCRIPTOR_PAGE_TYPE_MASK (3UL << 0) #define TT_DESCRIPTOR_PAGE_TYPE_FAULT (0UL << 0) #define TT_DESCRIPTOR_PAGE_TYPE_PAGE (2UL << 0) #define TT_DESCRIPTOR_PAGE_TYPE_PAGE_XN (3UL << 0) #define TT_DESCRIPTOR_PAGE_TYPE_LARGEPAGE (1UL << 0) // Section descriptor definitions #define TT_DESCRIPTOR_SECTION_SIZE (0x00100000) #define TT_DESCRIPTOR_SECTION_NS_MASK (1UL << 19) #define TT_DESCRIPTOR_SECTION_NS (1UL << 19) #define TT_DESCRIPTOR_SECTION_NG_MASK (1UL << 17) #define TT_DESCRIPTOR_SECTION_NG_GLOBAL (0UL << 17) #define TT_DESCRIPTOR_SECTION_NG_LOCAL (1UL << 17) #define TT_DESCRIPTOR_PAGE_NG_MASK (1UL << 11) #define TT_DESCRIPTOR_PAGE_NG_GLOBAL (0UL << 11) #define TT_DESCRIPTOR_PAGE_NG_LOCAL (1UL << 11) #define TT_DESCRIPTOR_SECTION_S_MASK (1UL << 16) #define TT_DESCRIPTOR_SECTION_S_NOT_SHARED (0UL << 16) #define TT_DESCRIPTOR_SECTION_S_SHARED (1UL << 16) #define TT_DESCRIPTOR_PAGE_S_MASK (1UL << 10) #define TT_DESCRIPTOR_PAGE_S_NOT_SHARED (0UL << 10) #define TT_DESCRIPTOR_PAGE_S_SHARED (1UL << 10) #define TT_DESCRIPTOR_SECTION_AP_MASK ((1UL << 15) | (3UL << 10)) #define TT_DESCRIPTOR_SECTION_AP_NO_NO ((0UL << 15) | (0UL << 10)) #define TT_DESCRIPTOR_SECTION_AP_RW_NO ((0UL << 15) | (1UL << 10)) #define TT_DESCRIPTOR_SECTION_AP_RW_RO ((0UL << 15) | (2UL << 10)) #define TT_DESCRIPTOR_SECTION_AP_RW_RW ((0UL << 15) | (3UL << 10)) #define TT_DESCRIPTOR_SECTION_AP_RO_NO ((1UL << 15) | (1UL << 10)) #define TT_DESCRIPTOR_SECTION_AP_RO_RO ((1UL << 15) | (3UL << 10)) #define TT_DESCRIPTOR_PAGE_AP_MASK ((1UL << 9) | (3UL << 4)) #define TT_DESCRIPTOR_PAGE_AP_NO_NO ((0UL << 9) | (0UL << 4)) #define TT_DESCRIPTOR_PAGE_AP_RW_NO ((0UL << 9) | (1UL << 4)) #define TT_DESCRIPTOR_PAGE_AP_RW_RO ((0UL << 9) | (2UL << 4)) #define TT_DESCRIPTOR_PAGE_AP_RW_RW ((0UL << 9) | (3UL << 4)) #define TT_DESCRIPTOR_PAGE_AP_RO_NO ((1UL << 9) | (1UL << 4)) #define TT_DESCRIPTOR_PAGE_AP_RO_RO ((1UL << 9) | (3UL << 4)) #define TT_DESCRIPTOR_SECTION_XN_MASK (0x1UL << 4) #define TT_DESCRIPTOR_PAGE_XN_MASK (0x1UL << 0) #define TT_DESCRIPTOR_LARGEPAGE_XN_MASK (0x1UL << 15) #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_MASK ((3UL << 12) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_SECTION_CACHEABLE_MASK (1UL << 3) #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_STRONGLY_ORDERED ((0UL << 12) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_SHAREABLE_DEVICE ((0UL << 12) | (0UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_WRITE_THROUGH_NO_ALLOC ((0UL << 12) | (1UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_WRITE_BACK_NO_ALLOC ((0UL << 12) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_NON_CACHEABLE ((1UL << 12) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_WRITE_BACK_ALLOC ((1UL << 12) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_SECTION_CACHE_POLICY_NON_SHAREABLE_DEVICE ((2UL << 12) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_PAGE_SIZE (0x00001000) #define TT_DESCRIPTOR_PAGE_CACHE_POLICY_MASK ((3UL << 6) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_PAGE_CACHEABLE_MASK (1UL << 3) #define TT_DESCRIPTOR_PAGE_CACHE_POLICY_STRONGLY_ORDERED ((0UL << 6) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_PAGE_CACHE_POLICY_SHAREABLE_DEVICE ((0UL << 6) | (0UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_PAGE_CACHE_POLICY_WRITE_THROUGH_NO_ALLOC ((0UL << 6) | (1UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_PAGE_CACHE_POLICY_WRITE_BACK_NO_ALLOC ((0UL << 6) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_PAGE_CACHE_POLICY_NON_CACHEABLE ((1UL << 6) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_PAGE_CACHE_POLICY_WRITE_BACK_ALLOC ((1UL << 6) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_PAGE_CACHE_POLICY_NON_SHAREABLE_DEVICE ((2UL << 6) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_MASK ((3UL << 12) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_STRONGLY_ORDERED ((0UL << 12) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_SHAREABLE_DEVICE ((0UL << 12) | (0UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_WRITE_THROUGH_NO_ALLOC ((0UL << 12) | (1UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_WRITE_BACK_NO_ALLOC ((0UL << 12) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_NON_CACHEABLE ((1UL << 12) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_WRITE_BACK_ALLOC ((1UL << 12) | (1UL << 3) | (1UL << 2)) #define TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_NON_SHAREABLE_DEVICE ((2UL << 12) | (0UL << 3) | (0UL << 2)) #define TT_DESCRIPTOR_CONVERT_TO_PAGE_AP(Desc) ((((Desc) & TT_DESCRIPTOR_SECTION_AP_MASK) >> 6) & TT_DESCRIPTOR_PAGE_AP_MASK) #define TT_DESCRIPTOR_CONVERT_TO_PAGE_NG(Desc) ((((Desc) & TT_DESCRIPTOR_SECTION_NG_MASK) >> 6) & TT_DESCRIPTOR_PAGE_NG_MASK) #define TT_DESCRIPTOR_CONVERT_TO_PAGE_S(Desc) ((((Desc) & TT_DESCRIPTOR_SECTION_S_MASK) >> 6) & TT_DESCRIPTOR_PAGE_S_MASK) #define TT_DESCRIPTOR_CONVERT_TO_PAGE_XN(Desc,IsLargePage) ((IsLargePage)? \ ((((Desc) & TT_DESCRIPTOR_SECTION_XN_MASK) >> 4) & TT_DESCRIPTOR_LARGEPAGE_XN_MASK): \ ((((Desc) & TT_DESCRIPTOR_SECTION_XN_MASK) << 11) & TT_DESCRIPTOR_PAGE_XN_MASK)) #define TT_DESCRIPTOR_CONVERT_TO_PAGE_CACHE_POLICY(Desc,IsLargePage) (IsLargePage? \ (((Desc) & TT_DESCRIPTOR_SECTION_CACHE_POLICY_MASK) & TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_MASK): \ (((((Desc) & (0x3 << 12)) >> 6) | (Desc & (0x3 << 2))))) #define TT_DESCRIPTOR_CONVERT_TO_SECTION_AP(Desc) ((((Desc) & TT_DESCRIPTOR_PAGE_AP_MASK) << 6) & TT_DESCRIPTOR_SECTION_AP_MASK) #define TT_DESCRIPTOR_CONVERT_TO_SECTION_CACHE_POLICY(Desc,IsLargePage) (IsLargePage? \ (((Desc) & TT_DESCRIPTOR_LARGEPAGE_CACHE_POLICY_MASK) & TT_DESCRIPTOR_SECTION_CACHE_POLICY_MASK): \ (((((Desc) & (0x3 << 6)) << 6) | (Desc & (0x3 << 2))))) #define TT_DESCRIPTOR_SECTION_DOMAIN_MASK (0x0FUL << 5) #define TT_DESCRIPTOR_SECTION_DOMAIN(a) (((a) & 0x0FUL) << 5) #define TT_DESCRIPTOR_SECTION_BASE_ADDRESS_MASK (0xFFF00000) #define TT_DESCRIPTOR_SECTION_PAGETABLE_ADDRESS_MASK (0xFFFFFC00) #define TT_DESCRIPTOR_SECTION_BASE_ADDRESS(a) ((a) & TT_DESCRIPTOR_SECTION_BASE_ADDRESS_MASK) #define TT_DESCRIPTOR_SECTION_BASE_SHIFT 20 #define TT_DESCRIPTOR_PAGE_BASE_ADDRESS_MASK (0xFFFFF000) #define TT_DESCRIPTOR_PAGE_INDEX_MASK (0x000FF000) #define TT_DESCRIPTOR_PAGE_BASE_ADDRESS(a) ((a) & TT_DESCRIPTOR_PAGE_BASE_ADDRESS_MASK) #define TT_DESCRIPTOR_PAGE_BASE_SHIFT 12 #define TT_DESCRIPTOR_SECTION_WRITE_BACK(NonSecure) (TT_DESCRIPTOR_SECTION_TYPE_SECTION | \ ((NonSecure) ? TT_DESCRIPTOR_SECTION_NS : 0) | \ TT_DESCRIPTOR_SECTION_NG_GLOBAL | \ TT_DESCRIPTOR_SECTION_S_NOT_SHARED | \ TT_DESCRIPTOR_SECTION_DOMAIN(0) | \ TT_DESCRIPTOR_SECTION_AP_RW_RW | \ TT_DESCRIPTOR_SECTION_CACHE_POLICY_WRITE_BACK_ALLOC) #define TT_DESCRIPTOR_SECTION_WRITE_THROUGH(NonSecure) (TT_DESCRIPTOR_SECTION_TYPE_SECTION | \ ((NonSecure) ? TT_DESCRIPTOR_SECTION_NS : 0) | \ TT_DESCRIPTOR_SECTION_NG_GLOBAL | \ TT_DESCRIPTOR_SECTION_S_NOT_SHARED | \ TT_DESCRIPTOR_SECTION_DOMAIN(0) | \ TT_DESCRIPTOR_SECTION_AP_RW_RW | \ TT_DESCRIPTOR_SECTION_CACHE_POLICY_WRITE_THROUGH_NO_ALLOC) #define TT_DESCRIPTOR_SECTION_DEVICE(NonSecure) (TT_DESCRIPTOR_SECTION_TYPE_SECTION | \ ((NonSecure) ? TT_DESCRIPTOR_SECTION_NS : 0) | \ TT_DESCRIPTOR_SECTION_NG_GLOBAL | \ TT_DESCRIPTOR_SECTION_S_NOT_SHARED | \ TT_DESCRIPTOR_SECTION_DOMAIN(0) | \ TT_DESCRIPTOR_SECTION_AP_RW_RW | \ TT_DESCRIPTOR_SECTION_CACHE_POLICY_SHAREABLE_DEVICE) #define TT_DESCRIPTOR_SECTION_UNCACHED(NonSecure) (TT_DESCRIPTOR_SECTION_TYPE_SECTION | \ ((NonSecure) ? TT_DESCRIPTOR_SECTION_NS : 0) | \ TT_DESCRIPTOR_SECTION_NG_GLOBAL | \ TT_DESCRIPTOR_SECTION_S_NOT_SHARED | \ TT_DESCRIPTOR_SECTION_DOMAIN(0) | \ TT_DESCRIPTOR_SECTION_AP_RW_RW | \ TT_DESCRIPTOR_SECTION_CACHE_POLICY_NON_CACHEABLE) #define TT_DESCRIPTOR_PAGE_WRITE_BACK (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \ TT_DESCRIPTOR_PAGE_NG_GLOBAL | \ TT_DESCRIPTOR_PAGE_S_NOT_SHARED | \ TT_DESCRIPTOR_PAGE_AP_RW_RW | \ TT_DESCRIPTOR_PAGE_CACHE_POLICY_WRITE_BACK_ALLOC) #define TT_DESCRIPTOR_PAGE_WRITE_THROUGH (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \ TT_DESCRIPTOR_PAGE_NG_GLOBAL | \ TT_DESCRIPTOR_PAGE_S_NOT_SHARED | \ TT_DESCRIPTOR_PAGE_AP_RW_RW | \ TT_DESCRIPTOR_PAGE_CACHE_POLICY_WRITE_THROUGH_NO_ALLOC) #define TT_DESCRIPTOR_PAGE_DEVICE (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \ TT_DESCRIPTOR_PAGE_NG_GLOBAL | \ TT_DESCRIPTOR_PAGE_S_NOT_SHARED | \ TT_DESCRIPTOR_PAGE_AP_RW_RW | \ TT_DESCRIPTOR_PAGE_CACHE_POLICY_SHAREABLE_DEVICE) #define TT_DESCRIPTOR_PAGE_UNCACHED (TT_DESCRIPTOR_PAGE_TYPE_PAGE | \ TT_DESCRIPTOR_PAGE_NG_GLOBAL | \ TT_DESCRIPTOR_PAGE_S_NOT_SHARED | \ TT_DESCRIPTOR_PAGE_AP_RW_RW | \ TT_DESCRIPTOR_PAGE_CACHE_POLICY_NON_CACHEABLE) #endif