page_table.hh (10556:1e3b3c7a0cba) page_table.hh (10558:426665ec11a9)
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

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80 assert(isPowerOf2(pageSize));
81 pTableCache[0].valid = false;
82 pTableCache[1].valid = false;
83 pTableCache[2].valid = false;
84 }
85
86 virtual ~PageTableBase() {};
87
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

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

80 assert(isPowerOf2(pageSize));
81 pTableCache[0].valid = false;
82 pTableCache[1].valid = false;
83 pTableCache[2].valid = false;
84 }
85
86 virtual ~PageTableBase() {};
87
88 /* generic page table mapping flags
89 * unset | set
90 * bit 0 - no-clobber | clobber
91 * bit 1 - present | not-present
92 * bit 2 - cacheable | uncacheable
93 * bit 3 - read-write | read-only
94 */
95 enum MappingFlags : uint32_t {
96 Clobber = 1,
97 NotPresent = 2,
98 Uncacheable = 4,
99 ReadOnly = 8,
100 };
101
88 virtual void initState(ThreadContext* tc) = 0;
89
90 // for DPRINTF compatibility
91 const std::string name() const { return _name; }
92
93 Addr pageAlign(Addr a) { return (a & ~offsetMask); }
94 Addr pageOffset(Addr a) { return (a & offsetMask); }
95
102 virtual void initState(ThreadContext* tc) = 0;
103
104 // for DPRINTF compatibility
105 const std::string name() const { return _name; }
106
107 Addr pageAlign(Addr a) { return (a & ~offsetMask); }
108 Addr pageOffset(Addr a) { return (a & offsetMask); }
109
110 /**
111 * Maps a virtual memory region to a physical memory region.
112 * @param vaddr The starting virtual address of the region.
113 * @param paddr The starting physical address where the region is mapped.
114 * @param size The length of the region.
115 * @param flags Generic mapping flags that can be set by or-ing values
116 * from MappingFlags enum.
117 */
96 virtual void map(Addr vaddr, Addr paddr, int64_t size,
118 virtual void map(Addr vaddr, Addr paddr, int64_t size,
97 bool clobber = false) = 0;
119 uint64_t flags = 0) = 0;
98 virtual void remap(Addr vaddr, int64_t size, Addr new_vaddr) = 0;
99 virtual void unmap(Addr vaddr, int64_t size) = 0;
100
101 /**
102 * Check if any pages in a region are already allocated
103 * @param vaddr The starting virtual address of the region.
104 * @param size The length of the region.
105 * @return True if no pages in the region are mapped.

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192 Addr _pageSize = TheISA::PageBytes);
193
194 ~FuncPageTable();
195
196 void initState(ThreadContext* tc)
197 {
198 }
199
120 virtual void remap(Addr vaddr, int64_t size, Addr new_vaddr) = 0;
121 virtual void unmap(Addr vaddr, int64_t size) = 0;
122
123 /**
124 * Check if any pages in a region are already allocated
125 * @param vaddr The starting virtual address of the region.
126 * @param size The length of the region.
127 * @return True if no pages in the region are mapped.

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214 Addr _pageSize = TheISA::PageBytes);
215
216 ~FuncPageTable();
217
218 void initState(ThreadContext* tc)
219 {
220 }
221
200 void map(Addr vaddr, Addr paddr, int64_t size, bool clobber = false);
222 void map(Addr vaddr, Addr paddr, int64_t size,
223 uint64_t flags = 0);
201 void remap(Addr vaddr, int64_t size, Addr new_vaddr);
202 void unmap(Addr vaddr, int64_t size);
203
204 /**
205 * Check if any pages in a region are already allocated
206 * @param vaddr The starting virtual address of the region.
207 * @param size The length of the region.
208 * @return True if no pages in the region are mapped.

--- 31 unchanged lines hidden --- 		224 void remap(Addr vaddr, int64_t size, Addr new_vaddr);
225 void unmap(Addr vaddr, int64_t size);
226
227 /**
228 * Check if any pages in a region are already allocated
229 * @param vaddr The starting virtual address of the region.
230 * @param size The length of the region.
231 * @return True if no pages in the region are mapped.

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