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data/dram bus refactoring

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This commit is contained in:
Blaise Tine
2020-12-06 03:37:22 -08:00
parent d0f2a3984d
commit b2652527bb
9 changed files with 624 additions and 573 deletions
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35
hw/rtl/Vortex.v
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@@ -242,7 +242,7 @@ module Vortex (
);
end
VX_io_arb #(
VX_databus_arb #(
.NUM_REQS (`NUM_CLUSTERS),
.WORD_SIZE (4),
.TAG_IN_WIDTH (`L2CORE_TAG_WIDTH),
@@ -322,30 +322,31 @@ module Vortex (
// L3 Cache ///////////////////////////////////////////////////////////
wire [`L3NUM_REQUESTS-1:0] cluster_dram_rsp_valid;
wire [`L3NUM_REQUESTS-1:0][`L2DRAM_LINE_WIDTH-1:0] cluster_dram_rsp_data;
wire [`L3NUM_REQUESTS-1:0][`L2DRAM_TAG_WIDTH-1:0] cluster_dram_rsp_tag;
wire cluster_dram_rsp_ready;
wire [`NUM_CLUSTERS-1:0] cluster_dram_rsp_valid;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_LINE_WIDTH-1:0] cluster_dram_rsp_data;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_TAG_WIDTH-1:0] cluster_dram_rsp_tag;
wire cluster_dram_rsp_ready;
wire snp_fwd_rsp_valid;
wire [`L3DRAM_ADDR_WIDTH-1:0] snp_fwd_rsp_addr;
wire snp_fwd_rsp_inv;
wire [`L3SNP_TAG_WIDTH-1:0] snp_fwd_rsp_tag;
wire snp_fwd_rsp_ready;
wire snp_fwd_rsp_valid;
wire [`L3DRAM_ADDR_WIDTH-1:0] snp_fwd_rsp_addr;
wire snp_fwd_rsp_inv;
wire [`L3SNP_TAG_WIDTH-1:0] snp_fwd_rsp_tag;
wire snp_fwd_rsp_ready;
reg [`L3NUM_REQUESTS-1:0] cluster_dram_rsp_ready_other;
reg [`NUM_CLUSTERS-1:0] cluster_dram_rsp_ready_other;
always @(*) begin
cluster_dram_rsp_ready_other = {`L3NUM_REQUESTS{1'b1}};
for (integer i = 0; i < `L3NUM_REQUESTS; i++) begin
for (integer j = 0; j < `L3NUM_REQUESTS; j++) begin
if (i != j)
cluster_dram_rsp_ready_other = {`NUM_CLUSTERS{1'b1}};
for (integer i = 0; i < `NUM_CLUSTERS; i++) begin
for (integer j = 0; j < `NUM_CLUSTERS; j++) begin
if (i != j) begin
cluster_dram_rsp_ready_other[i] &= (per_cluster_dram_rsp_ready [j] | !cluster_dram_rsp_valid [j]);
end
end
end
end
for (genvar i = 0; i < `L3NUM_REQUESTS; i++) begin
for (genvar i = 0; i < `NUM_CLUSTERS; i++) begin
// Core Response
assign per_cluster_dram_rsp_valid [i] = cluster_dram_rsp_valid [i] & cluster_dram_rsp_ready_other [i];
assign per_cluster_dram_rsp_data [i] = cluster_dram_rsp_data [i];
@@ -393,7 +394,7 @@ module Vortex (
.BANK_LINE_SIZE (`L3BANK_LINE_SIZE),
.NUM_BANKS (`L3NUM_BANKS),
.WORD_SIZE (`L3WORD_SIZE),
.NUM_REQS (`L3NUM_REQUESTS),
.NUM_REQS (`NUM_CLUSTERS),
.CREQ_SIZE (`L3CREQ_SIZE),
.MSHR_SIZE (`L3MSHR_SIZE),
.DRFQ_SIZE (`L3DRFQ_SIZE),