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protocol: made MI_example dma mapping generic

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This commit is contained in:
Derek Hower
2009-08-05 14:17:23 -05:00
parent 7f012ef8da
commit 1276df51e2
1 changed files with 9 additions and 50 deletions
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59
src/mem/protocol/MI_example-dir.sm
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@@ -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) {