page_table.hh (12460:0f221912b014) page_table.hh (12461:a4cb506cda74)
1/*
2 * Copyright (c) 2014 Advanced Micro Devices, Inc.
3 * Copyright (c) 2003 The Regents of The University of Michigan
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

--- 26 unchanged lines hidden (view full) ---

35 */
36
37#ifndef __MEM_PAGE_TABLE_HH__
38#define __MEM_PAGE_TABLE_HH__
39
40#include <string>
41#include <unordered_map>
42
1/*
2 * Copyright (c) 2014 Advanced Micro Devices, Inc.
3 * Copyright (c) 2003 The Regents of The University of Michigan
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

--- 26 unchanged lines hidden (view full) ---

35 */
36
37#ifndef __MEM_PAGE_TABLE_HH__
38#define __MEM_PAGE_TABLE_HH__
39
40#include <string>
41#include <unordered_map>
42
43#include "arch/isa_traits.hh"
44#include "arch/tlb.hh"
45#include "base/intmath.hh"
46#include "base/types.hh"
43#include "base/intmath.hh"
44#include "base/types.hh"
47#include "config/the_isa.hh"
48#include "mem/request.hh"
49#include "sim/serialize.hh"
50
51class ThreadContext;
52
53class EmulationPageTable : public Serializable
54{
45#include "mem/request.hh"
46#include "sim/serialize.hh"
47
48class ThreadContext;
49
50class EmulationPageTable : public Serializable
51{
52 public:
53 struct Entry
54 {
55 Addr paddr;
56 uint64_t flags;
57
58 Entry(Addr paddr, uint64_t flags) : paddr(paddr), flags(flags) {}
59 Entry() {}
60 };
61
55 protected:
62 protected:
56 typedef std::unordered_map<Addr, TheISA::TlbEntry *> PTable;
63 typedef std::unordered_map<Addr, Entry> PTable;
57 typedef PTable::iterator PTableItr;
58 PTable pTable;
59
60 const Addr pageSize;
61 const Addr offsetMask;
62
64 typedef PTable::iterator PTableItr;
65 PTable pTable;
66
67 const Addr pageSize;
68 const Addr offsetMask;
69
63 const uint64_t pid;
70 const uint64_t _pid;
64 const std::string _name;
65
66 public:
67
68 EmulationPageTable(
69 const std::string &__name, uint64_t _pid, Addr _pageSize) :
70 pageSize(_pageSize), offsetMask(mask(floorLog2(_pageSize))),
71 const std::string _name;
72
73 public:
74
75 EmulationPageTable(
76 const std::string &__name, uint64_t _pid, Addr _pageSize) :
77 pageSize(_pageSize), offsetMask(mask(floorLog2(_pageSize))),
71 pid(_pid), _name(__name)
78 _pid(_pid), _name(__name)
72 {
73 assert(isPowerOf2(pageSize));
74 }
75
79 {
80 assert(isPowerOf2(pageSize));
81 }
82
76 virtual ~EmulationPageTable();
83 uint64_t pid() const { return _pid; };
77
84
85 virtual ~EmulationPageTable() {};
86
78 /* generic page table mapping flags
79 * unset | set
80 * bit 0 - no-clobber | clobber
81 * bit 2 - cacheable | uncacheable
82 * bit 3 - read-write | read-only
83 */
84 enum MappingFlags : uint32_t {
85 Clobber = 1,

--- 29 unchanged lines hidden (view full) ---

115 */
116 virtual bool isUnmapped(Addr vaddr, int64_t size);
117
118 /**
119 * Lookup function
120 * @param vaddr The virtual address.
121 * @return The page table entry corresponding to vaddr.
122 */
87 /* generic page table mapping flags
88 * unset | set
89 * bit 0 - no-clobber | clobber
90 * bit 2 - cacheable | uncacheable
91 * bit 3 - read-write | read-only
92 */
93 enum MappingFlags : uint32_t {
94 Clobber = 1,

--- 29 unchanged lines hidden (view full) ---

124 */
125 virtual bool isUnmapped(Addr vaddr, int64_t size);
126
127 /**
128 * Lookup function
129 * @param vaddr The virtual address.
130 * @return The page table entry corresponding to vaddr.
131 */
123 virtual TheISA::TlbEntry *lookup(Addr vaddr);
132 const Entry *lookup(Addr vaddr);
124
125 /**
126 * Translate function
127 * @param vaddr The virtual address.
128 * @param paddr Physical address from translation.
129 * @return True if translation exists
130 */
131 bool translate(Addr vaddr, Addr &paddr);

--- 22 unchanged lines hidden --- 		133
134 /**
135 * Translate function
136 * @param vaddr The virtual address.
137 * @param paddr Physical address from translation.
138 * @return True if translation exists
139 */
140 bool translate(Addr vaddr, Addr &paddr);

--- 22 unchanged lines hidden ---