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snooping response handling fix

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This commit is contained in:
Blaise Tine
2020-05-14 23:05:46 -04:00
parent bcb9514799
commit d623ef4029
13 changed files with 174 additions and 154 deletions
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15
hw/rtl/cache/VX_cache_dram_req_arb.v vendored
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@@ -89,21 +89,22 @@ module VX_cache_dram_req_arb #(
.dfqq_full (dfqq_full)
);
wire [`BANK_BITS-1:0] dwb_bank;
assign dram_fill_req_ready = ~dfqq_full;
wire [NUM_BANKS-1:0] use_wb_valid = per_bank_dram_wb_req_valid;
wire [`BANK_BITS-1:0] dwb_bank;
VX_generic_priority_encoder #(
.N(NUM_BANKS)
) sel_dwb (
.valids(use_wb_valid),
.valids(per_bank_dram_wb_req_valid),
.index (dwb_bank),
.found (dwb_valid)
);
);
assign dram_fill_req_ready = ~dfqq_full;
assign per_bank_dram_wb_req_ready = dram_req_ready ? (use_wb_valid & ((1 << dwb_bank))) : 0;
genvar i;
for (i = 0; i < NUM_BANKS; i++) begin
assign per_bank_dram_wb_req_ready[i] = dram_req_ready && (dwb_bank == `BANK_BITS'(i));
end
wire dram_req_valid = dwb_valid || dfqq_req || pref_pop;