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Renamed VictimTag to just Tag. Tag is used for both the victim and flush tags.

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This commit is contained in:
Ross Thompson 2022-12-05 17:19:51 -06:00
parent dc31add951
commit 37551ecc43
2 changed files with 8 additions and 8 deletions
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12
pipelined/src/cache/cache.sv vendored
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@ -82,8 +82,8 @@ module cache #(parameter LINELEN, NUMLINES, NUMWAYS, LOGBWPL, WORDLEN, MUXINTE
logic [NUMWAYS-1:0] VictimWay;
logic [NUMWAYS-1:0] DirtyWay;
logic LineDirty;
logic [TAGLEN-1:0] VictimTagWay [NUMWAYS-1:0];
logic [TAGLEN-1:0] VictimTag;
logic [TAGLEN-1:0] TagWay [NUMWAYS-1:0];
logic [TAGLEN-1:0] Tag;
logic [SETLEN-1:0] FlushAdr;
logic [SETLEN-1:0] FlushAdrP1;
logic FlushAdrCntEn;
@ -128,7 +128,7 @@ module cache #(parameter LINELEN, NUMLINES, NUMWAYS, LOGBWPL, WORDLEN, MUXINTE
cacheway #(NUMLINES, LINELEN, TAGLEN, OFFSETLEN, SETLEN, DCACHE)
CacheWays[NUMWAYS-1:0](.clk, .reset, .ce, .CAdr, .PAdr, .LineWriteData, .LineByteMask,
.SetValid, .ClearValid, .SetDirty, .ClearDirty, .SelEvict, .VictimWay,
.FlushWay, .SelFlush, .ReadDataLineWay, .HitWay, .ValidWay, .DirtyWay, .VictimTagWay, .FlushStage, .InvalidateCache);
.FlushWay, .SelFlush, .ReadDataLineWay, .HitWay, .ValidWay, .DirtyWay, .TagWay, .FlushStage, .InvalidateCache);
if(NUMWAYS > 1) begin:vict
cacheLRU #(NUMWAYS, SETLEN, OFFSETLEN, NUMLINES) cacheLRU(
.clk, .reset, .ce, .FlushStage, .HitWay, .ValidWay, .VictimWay, .CAdr, .LRUWriteEn(LRUWriteEn & ~FlushStage),
@ -140,7 +140,7 @@ module cache #(parameter LINELEN, NUMLINES, NUMWAYS, LOGBWPL, WORDLEN, MUXINTE
// Need to OR together each way in a bitwise manner.
// Final part of the AO Mux. First is the AND in the cacheway.
or_rows #(NUMWAYS, LINELEN) ReadDataAOMux(.a(ReadDataLineWay), .y(ReadDataLineCache));
or_rows #(NUMWAYS, TAGLEN) VictimTagAOMux(.a(VictimTagWay), .y(VictimTag));
or_rows #(NUMWAYS, TAGLEN) TagAOMux(.a(TagWay), .y(Tag));
// like to fix this.
if(DCACHE)
@ -173,8 +173,8 @@ module cache #(parameter LINELEN, NUMLINES, NUMWAYS, LOGBWPL, WORDLEN, MUXINTE
end
mux3 #(`PA_BITS) CacheBusAdrMux(.d0({PAdr[`PA_BITS-1:OFFSETLEN], {OFFSETLEN{1'b0}}}),
.d1({VictimTag, PAdr[SETTOP-1:OFFSETLEN], {OFFSETLEN{1'b0}}}),
.d2({VictimTag, FlushAdr, {OFFSETLEN{1'b0}}}),
.d1({Tag, PAdr[SETTOP-1:OFFSETLEN], {OFFSETLEN{1'b0}}}),
.d2({Tag, FlushAdr, {OFFSETLEN{1'b0}}}),
.s({SelFlush, SelEvict}), .y(CacheBusAdr));
/////////////////////////////////////////////////////////////////////////////////////////////

4
pipelined/src/cache/cacheway.sv vendored
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@ -55,7 +55,7 @@ module cacheway #(parameter NUMLINES=512, parameter LINELEN = 256, TAGLEN = 26,
output logic HitWay,
output logic ValidWay,
output logic DirtyWay,
output logic [TAGLEN-1:0] VictimTagWay);
output logic [TAGLEN-1:0] TagWay);
localparam integer WORDSPERLINE = LINELEN/`XLEN;
localparam integer BYTESPERLINE = LINELEN/8;
@ -110,7 +110,7 @@ module cacheway #(parameter NUMLINES=512, parameter LINELEN = 256, TAGLEN = 26,
// AND portion of distributed tag multiplexer
assign VictimTagWay = SelTag ? ReadTag : '0; // AND part of AOMux
assign TagWay = SelTag ? ReadTag : '0; // AND part of AOMux
assign DirtyWay = SelTag & Dirty & ValidWay;
assign HitWay = ValidWay & (ReadTag == PAdr[`PA_BITS-1:OFFSETLEN+INDEXLEN]);