physical.hh (4762:c94e103c83ad) physical.hh (4918:3214e3694fb2)
1/*
2 * Copyright (c) 2001-2005 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;

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109 };
110
111 std::list<LockedAddr> lockedAddrList;
112
113 // helper function for checkLockedAddrs(): we really want to
114 // inline a quick check for an empty locked addr list (hopefully
115 // the common case), and do the full list search (if necessary) in
116 // this out-of-line function
1/*
2 * Copyright (c) 2001-2005 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;

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

109 };
110
111 std::list<LockedAddr> lockedAddrList;
112
113 // helper function for checkLockedAddrs(): we really want to
114 // inline a quick check for an empty locked addr list (hopefully
115 // the common case), and do the full list search (if necessary) in
116 // this out-of-line function
117 bool checkLockedAddrList(Request *req);
117 bool checkLockedAddrList(PacketPtr pkt);
118
119 // Record the address of a load-locked operation so that we can
120 // clear the execution context's lock flag if a matching store is
121 // performed
118
119 // Record the address of a load-locked operation so that we can
120 // clear the execution context's lock flag if a matching store is
121 // performed
122 void trackLoadLocked(Request *req);
122 void trackLoadLocked(PacketPtr pkt);
123
124 // Compare a store address with any locked addresses so we can
125 // clear the lock flag appropriately. Return value set to 'false'
126 // if store operation should be suppressed (because it was a
127 // conditional store and the address was no longer locked by the
128 // requesting execution context), 'true' otherwise. Note that
129 // this method must be called on *all* stores since even
130 // non-conditional stores must clear any matching lock addresses.
123
124 // Compare a store address with any locked addresses so we can
125 // clear the lock flag appropriately. Return value set to 'false'
126 // if store operation should be suppressed (because it was a
127 // conditional store and the address was no longer locked by the
128 // requesting execution context), 'true' otherwise. Note that
129 // this method must be called on *all* stores since even
130 // non-conditional stores must clear any matching lock addresses.
131 bool writeOK(Request *req) {
131 bool writeOK(PacketPtr pkt) {
132 Request *req = pkt->req;
132 if (lockedAddrList.empty()) {
133 // no locked addrs: nothing to check, store_conditional fails
133 if (lockedAddrList.empty()) {
134 // no locked addrs: nothing to check, store_conditional fails
134 bool isLocked = req->isLocked();
135 bool isLocked = pkt->isLocked();
135 if (isLocked) {
136 req->setExtraData(0);
137 }
138 return !isLocked; // only do write if not an sc
139 } else {
140 // iterate over list...
136 if (isLocked) {
137 req->setExtraData(0);
138 }
139 return !isLocked; // only do write if not an sc
140 } else {
141 // iterate over list...
141 return checkLockedAddrList(req);
142 return checkLockedAddrList(pkt);
142 }
143 }
144
145 uint8_t *pmemAddr;
146 int pagePtr;
147 Tick lat;
148 std::vector<MemoryPort*> ports;
149 typedef std::vector<MemoryPort*>::iterator PortIterator;

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167 public:
168 int deviceBlockSize();
169 void getAddressRanges(AddrRangeList &resp, bool &snoop);
170 virtual Port *getPort(const std::string &if_name, int idx = -1);
171 void virtual init();
172 unsigned int drain(Event *de);
173
174 protected:
143 }
144 }
145
146 uint8_t *pmemAddr;
147 int pagePtr;
148 Tick lat;
149 std::vector<MemoryPort*> ports;
150 typedef std::vector<MemoryPort*>::iterator PortIterator;

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168 public:
169 int deviceBlockSize();
170 void getAddressRanges(AddrRangeList &resp, bool &snoop);
171 virtual Port *getPort(const std::string &if_name, int idx = -1);
172 void virtual init();
173 unsigned int drain(Event *de);
174
175 protected:
176 Tick doAtomicAccess(PacketPtr pkt);
175 void doFunctionalAccess(PacketPtr pkt);
176 virtual Tick calculateLatency(PacketPtr pkt);
177 void recvStatusChange(Port::Status status);
178
179 public:
180 virtual void serialize(std::ostream &os);
181 virtual void unserialize(Checkpoint *cp, const std::string &section);
182
183};
184
185#endif //__PHYSICAL_MEMORY_HH__
177 void doFunctionalAccess(PacketPtr pkt);
178 virtual Tick calculateLatency(PacketPtr pkt);
179 void recvStatusChange(Port::Status status);
180
181 public:
182 virtual void serialize(std::ostream &os);
183 virtual void unserialize(Checkpoint *cp, const std::string &section);
184
185};
186
187#endif //__PHYSICAL_MEMORY_HH__