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LSUArb: Removed Demuxes on ReadDataW, DataMiisalignedM, HPTWStall

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David Harris 2021-07-18 03:51:30 -04:00
parent 3f7a3b280e
commit c75d70126f
1 changed files with 5 additions and 3 deletions
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wally-pipelined/src/lsu/lsuArb.sv
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@ -91,12 +91,14 @@ module lsuArb
// demux the inputs from LSU to walker or cpu's data port.
assign ReadDataW = SelPTW ? `XLEN'b0 : ReadDataWfromDCache; // probably can avoid this demux
assign DataMisalignedM = SelPTW ? 1'b0 : DataMisalignedMfromDCache;
// works without the demux 7/18/21 dh. Suggest deleting these and removing fromDCache suffix
assign ReadDataW = /*SelPTW ? `XLEN'b0 : */ReadDataWfromDCache; // probably can avoid this demux
assign DataMisalignedM = /*SelPTW ? 1'b0 : */DataMisalignedMfromDCache;
// *** need to rename DcacheStall and Datastall.
// not clear at all. I think it should be LSUStall from the LSU,
// which is demuxed to HPTWStall and CPUDataStall? (not sure on this last one).
assign HPTWStall = SelPTW ? DCacheStall : 1'b1;
//assign HPTWStall = SelPTW ? DCacheStall : 1'b1;
assign HPTWStall = DCacheStall;
assign PendingInterruptMtoDCache = SelPTW ? 1'b0 : PendingInterruptM;