1/* |
2 * Copyright (c) 2010 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * |
14 * Copyright (c) 2002-2005 The Regents of The University of Michigan |
15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the --- 11 unchanged lines hidden (view full) --- 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Nathan Binkert 41 * Steve Reinhardt |
42 * Ali Saidi |
43 */ 44 45#ifndef __ARCH_ARM_PAGETABLE_H__ 46#define __ARCH_ARM_PAGETABLE_H__ 47 48#include "arch/arm/isa_traits.hh" 49#include "arch/arm/utility.hh" 50#include "arch/arm/vtophys.hh" 51#include "config/full_system.hh" 52 53namespace ArmISA { 54 |
55struct VAddr 56{ 57 VAddr(Addr a) { panic("not implemented yet."); } 58}; 59 60 61// ITB/DTB page table entry 62struct PTE 63{ 64 void serialize(std::ostream &os) |
65 { |
66 panic("Need to implement PTE serialization\n"); 67 } |
68 |
69 void unserialize(Checkpoint *cp, const std::string §ion) 70 { 71 panic("Need to implement PTE serialization\n"); 72 } |
73 |
74}; |
75 |
76// ITB/DTB table entry 77struct TlbEntry 78{ 79 Addr tag; // virtual page number tag 80 Addr ppn; // physical page number 81 uint8_t asn; // address space number 82 bool valid; // valid page table entry |
83 |
84 85 //Construct an entry that maps to physical address addr. 86 TlbEntry(Addr _asn, Addr _vaddr, Addr _paddr) |
87 { |
88 tag = _vaddr >> PageShift; 89 ppn = _paddr >> PageShift; 90 asn = _asn; 91 valid = true; 92 } |
93 |
94 TlbEntry() 95 {} |
96 |
97 void 98 updateVaddr(Addr new_vaddr) 99 { 100 tag = new_vaddr >> PageShift; 101 } |
102 |
103 Addr 104 pageStart() 105 { 106 return ppn << PageShift; 107 } |
108 |
109 void serialize(std::ostream &os); 110 void unserialize(Checkpoint *cp, const std::string §ion); 111}; |
112 |
113 |
114 |
115}; 116#endif // __ARCH_ARM_PAGETABLE_H__ 117 |