2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
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28 * Authors: Erik Hallnor
32 #ifndef __CPU_MEMTEST_MEMTEST_HH__
33 #define __CPU_MEMTEST_MEMTEST_HH__
37 #include "base/statistics.hh"
38 #include "sim/eventq.hh"
39 #include "sim/sim_exit.hh"
40 #include "sim/sim_object.hh"
41 #include "sim/stats.hh"
42 #include "mem/mem_object.hh"
43 #include "mem/port.hh"
46 class MemTest : public MemObject
50 MemTest(const std::string &name,
52 unsigned _percentReads,
53 unsigned _percentFunctional,
54 unsigned _percentUncacheable,
55 unsigned _progressInterval,
56 unsigned _percentSourceUnaligned,
57 unsigned _percentDestUnaligned,
64 // register statistics
65 virtual void regStats();
67 inline Tick cycles(int numCycles) const { return numCycles; }
69 // main simulation loop (one cycle)
72 virtual Port *getPort(const std::string &if_name, int idx = -1);
75 class TickEvent : public Event
81 : Event(&mainEventQueue, CPU_Tick_Pri), cpu(c) {}
82 void process() {cpu->tick();}
83 virtual const char *description() { return "MemTest tick"; }
88 class CpuPort : public Port
94 CpuPort(const std::string &_name, MemTest *_memtest)
95 : Port(_name, _memtest), memtest(_memtest)
102 virtual bool recvTiming(PacketPtr pkt);
104 virtual Tick recvAtomic(PacketPtr pkt);
106 virtual void recvFunctional(PacketPtr pkt);
108 virtual void recvStatusChange(Status status);
110 virtual void recvRetry();
112 virtual void getDeviceAddressRanges(AddrRangeList &resp,
114 { resp.clear(); snoop = false; }
122 class MemTestSenderState : public Packet::SenderState
126 MemTestSenderState(uint8_t *_data)
130 // Hold onto data pointer
138 unsigned size; // size of testing memory region
140 unsigned percentReads; // target percentage of read accesses
141 unsigned percentFunctional; // target percentage of functional accesses
142 unsigned percentUncacheable;
146 std::set<unsigned> outstandingAddrs;
152 Addr blockAddr(Addr addr)
154 return (addr & ~blockAddrMask);
159 Addr baseAddr1; // fix this to option
160 Addr baseAddr2; // fix this to option
163 unsigned progressInterval; // frequency of progress reports
164 Tick nextProgressMessage; // access # for next progress report
166 unsigned percentSourceUnaligned;
167 unsigned percentDestUnaligned;
169 Tick noResponseCycles;
176 Stats::Scalar<> numReadsStat;
177 Stats::Scalar<> numWritesStat;
178 Stats::Scalar<> numCopiesStat;
180 // called by MemCompleteEvent::process()
181 void completeRequest(PacketPtr pkt);
183 void sendPkt(PacketPtr pkt);
187 friend class MemCompleteEvent;
190 #endif // __CPU_MEMTEST_MEMTEST_HH__