arm_mmu.h revision 1.1.2.2
1 1.1.2.2 bouyer /* -*-C++-*- $NetBSD: arm_mmu.h,v 1.1.2.2 2001/02/11 19:10:01 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /*- 4 1.1.2.2 bouyer * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 bouyer * by UCHIYAMA Yasushi. 9 1.1.2.2 bouyer * 10 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.1.2.2 bouyer * are met: 13 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 bouyer * must display the following acknowledgement: 20 1.1.2.2 bouyer * This product includes software developed by the NetBSD 21 1.1.2.2 bouyer * Foundation, Inc. and its contributors. 22 1.1.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 bouyer * contributors may be used to endorse or promote products derived 24 1.1.2.2 bouyer * from this software without specific prior written permission. 25 1.1.2.2 bouyer * 26 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 bouyer */ 38 1.1.2.2 bouyer 39 1.1.2.2 bouyer #ifndef _HPCBOOT_ARM_MMU_H_ 40 1.1.2.2 bouyer #define _HPCBOOT_ARM_MMU_H_ 41 1.1.2.2 bouyer 42 1.1.2.2 bouyer #include <arm/arm_arch.h> 43 1.1.2.2 bouyer #include <memory.h> 44 1.1.2.2 bouyer 45 1.1.2.2 bouyer #define ARM_MMU_TABLEBASE_MASK 0xffffc000 46 1.1.2.2 bouyer #define ARM_MMU_TABLEINDEX_MASK 0x00003ffc 47 1.1.2.2 bouyer #define ARM_MMU_VADDR_TABLE_INDEX_MASK 0xfff00000 48 1.1.2.2 bouyer #define ARM_MMU_TABLEINDEX_SHIFT 18 49 1.1.2.2 bouyer #define ARM_MMU_TABLEINDEX(x) \ 50 1.1.2.2 bouyer ((((x) & ARM_MMU_VADDR_TABLE_INDEX_MASK) >> \ 51 1.1.2.2 bouyer ARM_MMU_TABLEINDEX_SHIFT) & ARM_MMU_TABLEINDEX_MASK) 52 1.1.2.2 bouyer 53 1.1.2.2 bouyer /* 54 1.1.2.2 bouyer * 1st level descriptor 55 1.1.2.2 bouyer */ 56 1.1.2.2 bouyer #define ARM_MMU_LEVEL1DESC_TRANSLATE_TYPE_MASK 0x3 57 1.1.2.2 bouyer #define ARM_MMU_LEVEL1DESC_TRANSLATE_TYPE(x) \ 58 1.1.2.2 bouyer ((x) & ARM_MMU_LEVEL1DESC_TRANSLATE_TYPE_MASK) 59 1.1.2.2 bouyer #define ARM_MMU_LEVEL1DESC_TRANSLATE_SECTION 0x2 60 1.1.2.2 bouyer #define ARM_MMU_LEVEL1DESC_TRANSLATE_PAGE 0x1 61 1.1.2.2 bouyer 62 1.1.2.2 bouyer /* 63 1.1.2.2 bouyer * Section translation 64 1.1.2.2 bouyer */ 65 1.1.2.2 bouyer #define ARM_MMU_SECTION_BASE_MASK 0xfff00000 66 1.1.2.2 bouyer #define ARM_MMU_SECTION_BASE(x) \ 67 1.1.2.2 bouyer ((x) & ARM_MMU_SECTION_BASE_MASK) 68 1.1.2.2 bouyer #define ARM_MMU_VADDR_SECTION_INDEX_MASK 0x000fffff 69 1.1.2.2 bouyer #define ARM_MMU_VADDR_SECTION_INDEX(x) \ 70 1.1.2.2 bouyer ((x) & ARM_MMU_VADDR_SECTION_INDEX_MASK) 71 1.1.2.2 bouyer /* 72 1.1.2.2 bouyer * Page translation 73 1.1.2.2 bouyer */ 74 1.1.2.2 bouyer #define ARM_MMU_PTE_BASE_MASK 0xfffffc00 75 1.1.2.2 bouyer #define ARM_MMU_PTE_BASE(x) ((x) & ARM_MMU_PTE_BASE_MASK) 76 1.1.2.2 bouyer #define ARM_MMU_VADDR_PTE_INDEX_MASK 0x000003fc 77 1.1.2.2 bouyer #define ARM_MMU_VADDR_PTE_INDEX_SHIFT 10 78 1.1.2.2 bouyer #define ARM_MMU_VADDR_PTE_INDEX(x) \ 79 1.1.2.2 bouyer (((x) >> ARM_MMU_VADDR_PTE_INDEX_SHIFT) & \ 80 1.1.2.2 bouyer ARM_MMU_VADDR_PTE_INDEX_MASK) 81 1.1.2.2 bouyer 82 1.1.2.2 bouyer class MemoryManager_ArmMMU : public MemoryManager { 83 1.1.2.2 bouyer private: 84 1.1.2.2 bouyer BOOL _kmode; 85 1.1.2.2 bouyer paddr_t _table_base; 86 1.1.2.2 bouyer 87 1.1.2.2 bouyer public: 88 1.1.2.2 bouyer MemoryManager_ArmMMU(Console *&, size_t); 89 1.1.2.2 bouyer virtual ~MemoryManager_ArmMMU(); 90 1.1.2.2 bouyer BOOL init(void); 91 1.1.2.2 bouyer paddr_t searchPage(vaddr_t vaddr); 92 1.1.2.2 bouyer }; 93 1.1.2.2 bouyer 94 1.1.2.2 bouyer #endif // _HPCBOOT_ARM_MMU_H_ 95
Indexes created Tue Sep 30 20:09:53 GMT 2025