diff options
Diffstat (limited to 'src/mem/protocol/MI_example-dir.sm')
| -rw-r--r-- | src/mem/protocol/MI_example-dir.sm | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/src/mem/protocol/MI_example-dir.sm b/src/mem/protocol/MI_example-dir.sm index c045419b6..0061a2838 100644 --- a/src/mem/protocol/MI_example-dir.sm +++ b/src/mem/protocol/MI_example-dir.sm @@ -1,8 +1,6 @@ machine(Directory, "Directory protocol") -: int directory_latency, - int dma_select_low_bit, - int dma_select_num_bits +: int directory_latency { MessageBuffer forwardFromDir, network="To", virtual_network="2", ordered="false"; @@ -74,6 +72,7 @@ machine(Directory, "Directory protocol") State TBEState, desc="Transient State"; DataBlock DataBlk, desc="Data to be written (DMA write only)"; int Len, desc="..."; + MachineID DmaRequestor, desc="DMA requestor"; } external_type(TBETable) { @@ -243,8 +242,7 @@ 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(mapAddressToRange(address, MachineType:DMA, - dma_select_low_bit, dma_select_num_bits)); + out_msg.Destination.add(TBEs[address].DmaRequestor); out_msg.MessageSize := MessageSizeType:Response_Data; } } @@ -259,8 +257,7 @@ 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(mapAddressToRange(address, MachineType:DMA, - dma_select_low_bit, dma_select_num_bits)); + out_msg.Destination.add(TBEs[address].DmaRequestor); out_msg.MessageSize := MessageSizeType:Response_Data; } } @@ -271,8 +268,7 @@ machine(Directory, "Directory protocol") out_msg.PhysicalAddress := address; out_msg.LineAddress := address; out_msg.Type := DMAResponseType:ACK; - out_msg.Destination.add(mapAddressToRange(address, MachineType:DMA, - dma_select_low_bit, dma_select_num_bits)); + out_msg.Destination.add(TBEs[address].DmaRequestor); out_msg.MessageSize := MessageSizeType:Writeback_Control; } } @@ -343,6 +339,14 @@ machine(Directory, "Directory protocol") TBEs[address].DataBlk := in_msg.DataBlk; TBEs[address].PhysicalAddress := in_msg.PhysicalAddress; TBEs[address].Len := in_msg.Len; + TBEs[address].DmaRequestor := in_msg.Requestor; + } + } + + action(r_allocateTbeForDmaRead, "\r", desc="Allocate TBE for DMA Read") { + peek(dmaRequestQueue_in, DMARequestMsg) { + TBEs.allocate(address); + TBEs[address].DmaRequestor := in_msg.Requestor; } } @@ -485,6 +489,7 @@ machine(Directory, "Directory protocol") transition(I, DMA_READ, ID) { //dr_sendDMAData; + r_allocateTbeForDmaRead; qf_queueMemoryFetchRequestDMA; p_popIncomingDMARequestQueue; } @@ -492,6 +497,7 @@ machine(Directory, "Directory protocol") transition(ID, Memory_Data, I) { dr_sendDMAData; //p_popIncomingDMARequestQueue; + w_deallocateTBE; l_popMemQueue; } |