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LSU no longer has ***.

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This commit is contained in:
Ross Thompson 2024-06-19 10:56:07 -07:00
parent 5e5ca0809f
commit 77523c52c2
1 changed files with 1 additions and 6 deletions
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src/lsu/lsu.sv
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@ -351,11 +351,6 @@ module lsu import cvw::*; #(parameter cvw_t P) (
.Cacheable(CacheableOrFlushCacheM), .BusRW, .Stall(GatedStallW), .Cacheable(CacheableOrFlushCacheM), .BusRW, .Stall(GatedStallW),
.BusStall, .BusCommitted(BusCommittedM)); .BusStall, .BusCommitted(BusCommittedM));
// Mux between the 3 sources of read data, 0: cache, 1: Bus, 2: DTIM
// Uncache bus access may be smaller width than LLEN. Duplicate LLENPOVERAHBW times.
// *** DTIMReadDataWordM should be increased to LLEN.
// pma should generate exception for LLEN read to periph.
mux3 #(P.LLEN) UnCachedDataMux(.d0(DCacheReadDataWordSpillM), .d1({LLENPOVERAHBW{FetchBuffer[P.XLEN-1:0]}}), mux3 #(P.LLEN) UnCachedDataMux(.d0(DCacheReadDataWordSpillM), .d1({LLENPOVERAHBW{FetchBuffer[P.XLEN-1:0]}}),
.d2({{P.LLEN-P.XLEN{1'b0}}, DTIMReadDataWordM[P.XLEN-1:0]}), .d2({{P.LLEN-P.XLEN{1'b0}}, DTIMReadDataWordM[P.XLEN-1:0]}),
.s({SelDTIM, ~(CacheableOrFlushCacheM)}), .y(ReadDataWordMuxM)); .s({SelDTIM, ~(CacheableOrFlushCacheM)}), .y(ReadDataWordMuxM));
@ -374,7 +369,7 @@ module lsu import cvw::*; #(parameter cvw_t P) (
// Mux between the 2 sources of read data, 0: Bus, 1: DTIM // Mux between the 2 sources of read data, 0: Bus, 1: DTIM
if(P.DTIM_SUPPORTED) mux2 #(P.XLEN) ReadDataMux2(FetchBuffer, DTIMReadDataWordM[P.XLEN-1:0], SelDTIM, ReadDataWordMuxM[P.XLEN-1:0]); if(P.DTIM_SUPPORTED) mux2 #(P.XLEN) ReadDataMux2(FetchBuffer, DTIMReadDataWordM[P.XLEN-1:0], SelDTIM, ReadDataWordMuxM[P.XLEN-1:0]);
else assign ReadDataWordMuxM[P.XLEN-1:0] = FetchBuffer[P.XLEN-1:0]; // *** bus only does not support double wide floats. else assign ReadDataWordMuxM[P.XLEN-1:0] = FetchBuffer[P.XLEN-1:0];
assign LSUHBURST = 3'b0; assign LSUHBURST = 3'b0;
assign {DCacheStallM, DCacheCommittedM, DCacheMiss, DCacheAccess, DCacheReadDataWordM} = '0; assign {DCacheStallM, DCacheCommittedM, DCacheMiss, DCacheAccess, DCacheReadDataWordM} = '0;
end end