1 files changed, 49 insertions, 0 deletions
diff --git a/src/mem/ruby/system/DMASequencer.hh b/src/mem/ruby/system/DMASequencer.hh
new file mode 100644
index 000000000..2665549e3
--- /dev/null
+++ b/src/mem/ruby/system/DMASequencer.hh
@@ -0,0 +1,49 @@
+
+#ifndef DMASEQUENCER_H
+#define DMASEQUENCER_H
+
+#include <ostream>
+#include "mem/ruby/common/DataBlock.hh"
+#include "mem/ruby/system/RubyPort.hh"
+
+struct DMARequest {
+  uint64_t start_paddr;
+  int len;
+  bool write;
+  int bytes_completed;
+  int bytes_issued;
+  uint8* data;
+  int64_t id;
+};
+
+class MessageBuffer;
+class AbstractController;
+
+class DMASequencer :public RubyPort {
+public:
+  DMASequencer(const string & name);
+  void init(const vector<string> & argv);
+  /* external interface */
+  int64_t makeRequest(const RubyRequest & request);
+  //  void issueRequest(uint64_t paddr, uint8* data, int len, bool rw);
+  bool busy() { return m_is_busy;}
+
+  /* SLICC callback */
+  void dataCallback(const DataBlock & dblk);
+  void ackCallback();
+
+  void printConfig(std::ostream & out);
+
+private:
+  void issueNext();
+
+private:
+  int m_version;
+  AbstractController* m_controller;
+  bool m_is_busy;
+  DMARequest active_request;
+  int num_active_requests;
+  MessageBuffer* m_mandatory_q_ptr;
+};
+
+#endif // DMACONTROLLER_H