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adding input buffering to bus arbiters to reduce backpressure delay propagation

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This commit is contained in:
Blaise Tine
2020-12-05 17:31:29 -08:00
parent 13a5370254
commit d0f2a3984d
17 changed files with 480 additions and 338 deletions
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16
hw/rtl/cache/VX_cache.v vendored
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@@ -361,11 +361,11 @@ module VX_cache #(
) dram_req_arb (
.clk (clk),
.reset (reset),
.valid_in (per_bank_dram_req_valid),
.valid_out (dram_req_valid),
.data_in (data_in),
.data_out ({dram_req_addr, dram_req_rw, dram_req_byteen, dram_req_data}),
.ready_in (per_bank_dram_req_ready),
.valid_in (per_bank_dram_req_valid),
.data_in (data_in),
.ready_in (per_bank_dram_req_ready),
.valid_out (dram_req_valid),
.data_out ({dram_req_addr, dram_req_rw, dram_req_byteen, dram_req_data}),
.ready_out (dram_req_ready)
);
end else begin
@@ -392,10 +392,10 @@ module VX_cache #(
.clk (clk),
.reset (reset),
.valid_in (per_bank_snp_rsp_valid),
.valid_out (snp_rsp_valid),
.data_in (per_bank_snp_rsp_tag),
.data_out (snp_rsp_tag),
.ready_in (per_bank_snp_rsp_ready),
.ready_in (per_bank_snp_rsp_ready),
.valid_out (snp_rsp_valid),
.data_out (snp_rsp_tag),
.ready_out (snp_rsp_ready)
);
end else begin