From: Derek Hower <drh5@cs.wisc.edu>
Date: Wed, 5 Aug 2009 19:17:23 +0000 (-0500)
Subject: protocol: made MI_example dma mapping generic
X-Git-Tag: Calvin_Submission~159^2~2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1276df51e245c6e836d7e96c0df66a7b74b549c9;p=gem5.git

protocol: made MI_example dma mapping generic
---

diff --git a/src/mem/protocol/MI_example-dir.sm b/src/mem/protocol/MI_example-dir.sm
index c764634ec..9af1940f7 100644
--- a/src/mem/protocol/MI_example-dir.sm
+++ b/src/mem/protocol/MI_example-dir.sm
@@ -1,6 +1,8 @@
 
 machine(Directory, "Directory protocol") 
-: int directory_latency
+: int directory_latency,
+  int dma_select_low_bit,
+  int dma_select_num_bits
 {
 
   MessageBuffer forwardFromDir, network="To", virtual_network="2", ordered="false";
@@ -220,26 +222,6 @@ machine(Directory, "Directory protocol")
     directory[address].Owner.clear();
   }
 
-//  action(d_sendData, "d", desc="Send data to requestor") {
-//    peek(requestQueue_in, RequestMsg) {
-//      enqueue(responseNetwork_out, ResponseMsg, latency="MEMORY_LATENCY") {
-//        out_msg.Address := address;
-//
-//        if (in_msg.Type == CoherenceRequestType:GETS && directory[address].Sharers.count() == 0) {
-//          // out_msg.Type := CoherenceResponseType:DATA_EXCLUSIVE_CLEAN;
-//          out_msg.Type := CoherenceResponseType:DATA;
-//        } else {
-//          out_msg.Type := CoherenceResponseType:DATA;
-//        }
-//
-//        out_msg.Sender := machineID;
-//        out_msg.Destination.add(in_msg.Requestor);
-//        out_msg.DataBlk := directory[in_msg.Address].DataBlk;
-//        out_msg.MessageSize := MessageSizeType:Response_Data;
-//      }
-//    }
-//  }
-
   action(d_sendData, "d", desc="Send data to requestor") {
     peek(memQueue_in, MemoryMsg) {
       enqueue(responseNetwork_out, ResponseMsg, latency="1") {
@@ -253,18 +235,6 @@ machine(Directory, "Directory protocol")
     }
   }
 
-//  action(dr_sendDMAData, "dr", desc="Send Data to DMA controller from directory") {
-//    peek(dmaRequestQueue_in, DMARequestMsg) {
-//      enqueue(dmaResponseNetwork_out, DMAResponseMsg, latency="MEMORY_LATENCY") {
-//        out_msg.PhysicalAddress := address;
-//        out_msg.Type := DMAResponseType:DATA;
-//        out_msg.DataBlk := directory[in_msg.PhysicalAddress].DataBlk;   // we send the entire data block and rely on the dma controller to split it up if need be
-//        out_msg.Destination.add(map_Address_to_DMA(address));
-//        out_msg.MessageSize := MessageSizeType:Response_Data;
-//      }
-//    }
-//  }
-
   action(dr_sendDMAData, "dr", desc="Send Data to DMA controller from directory") {
     peek(memQueue_in, MemoryMsg) {
       enqueue(dmaResponseNetwork_out, DMAResponseMsg, latency="1") {
@@ -272,7 +242,8 @@ machine(Directory, "Directory protocol")
         out_msg.LineAddress := address;
         out_msg.Type := DMAResponseType:DATA;
         out_msg.DataBlk := in_msg.DataBlk;   // we send the entire data block and rely on the dma controller to split it up if need be
-        out_msg.Destination.add(map_Address_to_DMA(address));
+        out_msg.Destination.add(mapAddressToRange(address, MachineType:DMA, 
+						  dma_select_low_bit, dma_select_num_bits));
         out_msg.MessageSize := MessageSizeType:Response_Data;
       }
     }
@@ -287,7 +258,8 @@ machine(Directory, "Directory protocol")
         out_msg.LineAddress := address;
         out_msg.Type := DMAResponseType:DATA;
         out_msg.DataBlk := in_msg.DataBlk;   // we send the entire data block and rely on the dma controller to split it up if need be
-        out_msg.Destination.add(map_Address_to_DMA(address));
+        out_msg.Destination.add(mapAddressToRange(address, MachineType:DMA, 
+						  dma_select_low_bit, dma_select_num_bits));
         out_msg.MessageSize := MessageSizeType:Response_Data;
       }
     }
@@ -298,7 +270,8 @@ machine(Directory, "Directory protocol")
         out_msg.PhysicalAddress := address;
         out_msg.LineAddress := address;
         out_msg.Type := DMAResponseType:ACK;
-        out_msg.Destination.add(map_Address_to_DMA(address));
+        out_msg.Destination.add(mapAddressToRange(address, MachineType:DMA, 
+						  dma_select_low_bit, dma_select_num_bits));
         out_msg.MessageSize := MessageSizeType:Writeback_Control;
       }
   }
@@ -416,20 +389,6 @@ machine(Directory, "Directory protocol")
       }
     }
   }
-//  action(qw_queueMemoryWBRequest, "qw", desc="Queue off-chip writeback request") {
-//     peek(dmaRequestQueue_in, DMARequestMsg) {
-//      enqueue(memQueue_out, MemoryMsg, latency="1") {
-//        out_msg.Address := address;
-//        out_msg.Type := MemoryRequestType:MEMORY_WB;
-//        out_msg.OriginalRequestorMachId := machineID;
-//        out_msg.DataBlk := in_msg.DataBlk;
-//        out_msg.MessageSize := in_msg.MessageSize;
-
-//        DEBUG_EXPR(out_msg);
-//      }
-//    }
-//  }
-
 
   action(qw_queueMemoryWBRequest_partial, "qwp", desc="Queue off-chip writeback request") {
      peek(dmaRequestQueue_in, DMARequestMsg) {