1/* 2 * Copyright (c) 2002-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 35 unchanged lines hidden (view full) --- 44 45#include <cassert> 46 47class Request; 48 49typedef Request* RequestPtr; 50 51 |
52/** ASI information for this request if it exsits. */ 53const uint32_t ASI_BITS = 0x000FF; |
54/** The request is a Load locked/store conditional. */ |
55const uint32_t LOCKED = 0x00100; |
56/** The virtual address is also the physical address. */ |
57const uint32_t PHYSICAL = 0x00200; |
58/** The request is an ALPHA VPTE pal access (hw_ld). */ |
59const uint32_t VPTE = 0x00400; |
60/** Use the alternate mode bits in ALPHA. */ |
61const uint32_t ALTMODE = 0x00800; |
62/** The request is to an uncacheable address. */ |
63const uint32_t UNCACHEABLE = 0x01000; |
64/** The request should not cause a page fault. */ |
65const uint32_t NO_FAULT = 0x02000; |
66/** The request should be prefetched into the exclusive state. */ |
67const uint32_t PF_EXCLUSIVE = 0x10000; |
68/** The request should be marked as LRU. */ |
69const uint32_t EVICT_NEXT = 0x20000; |
70/** The request should ignore unaligned access faults */ |
71const uint32_t NO_ALIGN_FAULT = 0x40000; |
72/** The request was an instruction read. */ |
73const uint32_t INST_READ = 0x80000; |
74 75class Request 76{ 77 private: 78 /** 79 * The physical address of the request. Valid only if validPaddr 80 * is set. */ 81 Addr paddr; --- 10 unchanged lines hidden (view full) --- 92 /** 93 * The time this request was started. Used to calculate 94 * latencies. This field is set to curTick any time paddr or vaddr 95 * is written. */ 96 Tick time; 97 98 /** The address space ID. */ 99 int asid; |
100 |
101 /** This request is to a memory mapped register. */ |
102 bool mmapedIpr; |
103 104 /** The virtual address of the request. */ 105 Addr vaddr; 106 107 /** The return value of store conditional. */ 108 uint64_t scResult; 109 110 /** The cpu number (for statistics, typically). */ --- 54 unchanged lines hidden (view full) --- 165 paddr = _paddr; 166 size = _size; 167 flags = _flags; 168 time = curTick; 169 validPaddr = true; 170 validAsidVaddr = false; 171 validPC = false; 172 validScResult = false; |
173 mmapedIpr = false; |
174 } 175 176 /** 177 * Set up a virtual (e.g., CPU) request in a previously 178 * allocated Request object. */ 179 void setVirt(int _asid, Addr _vaddr, int _size, int _flags, Addr _pc) 180 { 181 asid = _asid; 182 vaddr = _vaddr; 183 size = _size; 184 flags = _flags; 185 pc = _pc; 186 time = curTick; 187 validPaddr = false; 188 validAsidVaddr = true; 189 validPC = true; 190 validScResult = false; |
191 mmapedIpr = false; |
192 } 193 194 /** Set just the physical address. This should only be used to 195 * record the result of a translation, and thus the vaddr must be 196 * valid before this method is called. Otherwise, use setPhys() 197 * to guarantee that the size and flags are also set. 198 */ 199 void setPaddr(Addr _paddr) --- 19 unchanged lines hidden (view full) --- 219 220 /** Accessor function for vaddr.*/ 221 Addr getVaddr() { assert(validAsidVaddr); return vaddr; } 222 223 /** Accessor function for asid.*/ 224 int getAsid() { assert(validAsidVaddr); return asid; } 225 226 /** Accessor function for asi.*/ |
227 uint8_t getAsi() { assert(validAsidVaddr); return flags & ASI_BITS; } 228 |
229 /** Accessor function for asi.*/ |
230 void setAsi(uint8_t a) 231 { assert(validAsidVaddr); flags = (flags & ~ASI_BITS) | a; } |
232 233 /** Accessor function for asi.*/ |
234 bool isMmapedIpr() { assert(validPaddr); return mmapedIpr; } 235 |
236 /** Accessor function for asi.*/ |
237 void setMmapedIpr(bool r) { assert(validPaddr); mmapedIpr = r; } |
238 239 /** Accessor function to check if sc result is valid. */ 240 bool scResultValid() { return validScResult; } 241 /** Accessor function for store conditional return value.*/ 242 uint64_t getScResult() { assert(validScResult); return scResult; } 243 /** Accessor function for store conditional return value.*/ 244 void setScResult(uint64_t _scResult) 245 { scResult = _scResult; validScResult = true; } --- 20 unchanged lines hidden --- |