-
/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* All rights reserved.
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-/*
- * $Id: Sequencer.hh 1.70 2006/09/27 14:56:41-05:00 bobba@s1-01.cs.wisc.edu $
- *
- * Description:
- *
- */
+#ifndef __MEM_RUBY_SYSTEM_SEQUENCER_HH__
+#define __MEM_RUBY_SYSTEM_SEQUENCER_HH__
-#ifndef SEQUENCER_H
-#define SEQUENCER_H
+#include <iostream>
-#include "mem/ruby/common/Global.hh"
-#include "mem/ruby/common/Consumer.hh"
-#include "mem/protocol/CacheRequestType.hh"
-#include "mem/protocol/AccessModeType.hh"
+#include "base/hashmap.hh"
#include "mem/protocol/GenericMachineType.hh"
-#include "mem/protocol/PrefetchBit.hh"
-#include "mem/ruby/system/RubyPort.hh"
-#include "mem/gems_common/Map.hh"
+#include "mem/protocol/RubyRequestType.hh"
#include "mem/ruby/common/Address.hh"
+#include "mem/ruby/common/Consumer.hh"
+#include "mem/ruby/system/RubyPort.hh"
class DataBlock;
-class CacheMsg;
-class MachineID;
class CacheMemory;
-class AbstractController;
-
-struct SequencerRequest {
- RubyRequest ruby_request;
- int64_t id;
- Time issue_time;
-
- SequencerRequest(const RubyRequest & _ruby_request, int64_t _id, Time _issue_time)
- : ruby_request(_ruby_request), id(_id), issue_time(_issue_time)
- {}
-};
-
-class Sequencer : public Consumer, public RubyPort {
-public:
- // Constructors
- Sequencer(const string & name);
- void init(const vector<string> & argv);
-
- // Destructor
- ~Sequencer();
-
- // Public Methods
- void wakeup(); // Used only for deadlock detection
- void printConfig(ostream& out) const;
+struct RubySequencerParams;
- void printProgress(ostream& out) const;
-
- void writeCallback(const Address& address, DataBlock& data);
- void readCallback(const Address& address, DataBlock& data);
-
- // called by Tester or Simics
- int64_t makeRequest(const RubyRequest & request);
- bool isReady(const RubyRequest& request);
- bool empty() const;
-
- void print(ostream& out) const;
- void checkCoherence(const Address& address);
-
- // bool getRubyMemoryValue(const Address& addr, char* value, unsigned int size_in_bytes);
- // bool setRubyMemoryValue(const Address& addr, char *value, unsigned int size_in_bytes);
-
- void removeRequest(SequencerRequest* request);
-private:
- // Private Methods
- bool tryCacheAccess(const Address& addr, CacheRequestType type, const Address& pc, AccessModeType access_mode, int size, DataBlock*& data_ptr);
- void issueRequest(const RubyRequest& request);
-
- void hitCallback(SequencerRequest* request, DataBlock& data);
- bool insertRequest(SequencerRequest* request);
-
-
- // Private copy constructor and assignment operator
- Sequencer(const Sequencer& obj);
- Sequencer& operator=(const Sequencer& obj);
-
-private:
- int m_max_outstanding_requests;
- int m_deadlock_threshold;
-
- AbstractController* m_controller;
- MessageBuffer* m_mandatory_q_ptr;
- CacheMemory* m_dataCache_ptr;
- CacheMemory* m_instCache_ptr;
-
- // indicates what processor on the chip this sequencer is associated with
- int m_version;
- int m_controller_type;
+struct SequencerRequest
+{
+ PacketPtr pkt;
+ RubyRequestType m_type;
+ Time issue_time;
- Map<Address, SequencerRequest*> m_writeRequestTable;
- Map<Address, SequencerRequest*> m_readRequestTable;
- // Global outstanding request count, across all request tables
- int m_outstanding_count;
- bool m_deadlock_check_scheduled;
- int m_servicing_atomic;
- int m_atomics_counter;
+ SequencerRequest(PacketPtr _pkt, RubyRequestType _m_type, Time _issue_time)
+ : pkt(_pkt), m_type(_m_type), issue_time(_issue_time)
+ {}
};
-// Output operator declaration
-ostream& operator<<(ostream& out, const Sequencer& obj);
+std::ostream& operator<<(std::ostream& out, const SequencerRequest& obj);
-// ******************* Definitions *******************
+class Sequencer : public RubyPort, public Consumer
+{
+ public:
+ typedef RubySequencerParams Params;
+ Sequencer(const Params *);
+ ~Sequencer();
+
+ // Public Methods
+ void wakeup(); // Used only for deadlock detection
+
+ void printConfig(std::ostream& out) const;
+
+ void printProgress(std::ostream& out) const;
+
+ void writeCallback(const Address& address, DataBlock& data);
+
+ void writeCallback(const Address& address,
+ GenericMachineType mach,
+ DataBlock& data);
+
+ void writeCallback(const Address& address,
+ GenericMachineType mach,
+ DataBlock& data,
+ Time initialRequestTime,
+ Time forwardRequestTime,
+ Time firstResponseTime);
+
+ void readCallback(const Address& address, DataBlock& data);
+
+ void readCallback(const Address& address,
+ GenericMachineType mach,
+ DataBlock& data);
+
+ void readCallback(const Address& address,
+ GenericMachineType mach,
+ DataBlock& data,
+ Time initialRequestTime,
+ Time forwardRequestTime,
+ Time firstResponseTime);
+
+ RequestStatus makeRequest(PacketPtr pkt);
+ bool empty() const;
+ int outstandingCount() const { return m_outstanding_count; }
+ bool
+ isDeadlockEventScheduled() const
+ {
+ return deadlockCheckEvent.scheduled();
+ }
+
+ void
+ descheduleDeadlockEvent()
+ {
+ deschedule(deadlockCheckEvent);
+ }
+
+ void print(std::ostream& out) const;
+ void printStats(std::ostream& out) const;
+ void checkCoherence(const Address& address);
+
+ void markRemoved();
+ void removeRequest(SequencerRequest* request);
+ void evictionCallback(const Address& address);
+
+ private:
+ void issueRequest(PacketPtr pkt, RubyRequestType type);
+
+ void hitCallback(SequencerRequest* request,
+ GenericMachineType mach,
+ DataBlock& data,
+ bool success,
+ Time initialRequestTime,
+ Time forwardRequestTime,
+ Time firstResponseTime);
+
+ RequestStatus insertRequest(PacketPtr pkt, RubyRequestType request_type);
+
+ bool handleLlsc(const Address& address, SequencerRequest* request);
+
+ // Private copy constructor and assignment operator
+ Sequencer(const Sequencer& obj);
+ Sequencer& operator=(const Sequencer& obj);
+
+ private:
+ int m_max_outstanding_requests;
+ int m_deadlock_threshold;
+
+ CacheMemory* m_dataCache_ptr;
+ CacheMemory* m_instCache_ptr;
+
+ typedef m5::hash_map<Address, SequencerRequest*> RequestTable;
+ RequestTable m_writeRequestTable;
+ RequestTable m_readRequestTable;
+ // Global outstanding request count, across all request tables
+ int m_outstanding_count;
+ bool m_deadlock_check_scheduled;
+
+ int m_store_waiting_on_load_cycles;
+ int m_store_waiting_on_store_cycles;
+ int m_load_waiting_on_store_cycles;
+ int m_load_waiting_on_load_cycles;
+
+ bool m_usingNetworkTester;
+
+ class SequencerWakeupEvent : public Event
+ {
+ private:
+ Sequencer *m_sequencer_ptr;
+
+ public:
+ SequencerWakeupEvent(Sequencer *_seq) : m_sequencer_ptr(_seq) {}
+ void process() { m_sequencer_ptr->wakeup(); }
+ const char *description() const { return "Sequencer deadlock check"; }
+ };
+
+ SequencerWakeupEvent deadlockCheckEvent;
+};
-// Output operator definition
-extern inline
-ostream& operator<<(ostream& out, const Sequencer& obj)
+inline std::ostream&
+operator<<(std::ostream& out, const Sequencer& obj)
{
- obj.print(out);
- out << flush;
- return out;
+ obj.print(out);
+ out << std::flush;
+ return out;
}
-#endif //SEQUENCER_H
-
+#endif // __MEM_RUBY_SYSTEM_SEQUENCER_HH__
projects / gem5.git / blobdiff