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refactoring cores clustering

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This commit is contained in:
Blaise Tine
2020-12-06 14:42:12 -08:00
parent b2652527bb
commit 1332970636
9 changed files with 504 additions and 615 deletions
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520
hw/rtl/Vortex.v
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@@ -66,275 +66,246 @@ module Vortex (
output wire busy,
output wire ebreak
);
if (`NUM_CLUSTERS == 1) begin
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_req_valid;
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_req_rw;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_BYTEEN_WIDTH-1:0] per_cluster_dram_req_byteen;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_ADDR_WIDTH-1:0] per_cluster_dram_req_addr;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_LINE_WIDTH-1:0] per_cluster_dram_req_data;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_TAG_WIDTH-1:0] per_cluster_dram_req_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_req_ready;
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_rsp_valid;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_LINE_WIDTH-1:0] per_cluster_dram_rsp_data;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_TAG_WIDTH-1:0] per_cluster_dram_rsp_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_rsp_ready;
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_req_valid;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_ADDR_WIDTH-1:0] per_cluster_snp_req_addr;
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_req_inv;
wire [`NUM_CLUSTERS-1:0][`L2SNP_TAG_WIDTH-1:0] per_cluster_snp_req_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_req_ready;
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_rsp_valid;
wire [`NUM_CLUSTERS-1:0][`L2SNP_TAG_WIDTH-1:0] per_cluster_snp_rsp_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_rsp_ready;
wire [`NUM_CLUSTERS-1:0][`NUM_THREADS-1:0] per_cluster_io_req_valid;
wire [`NUM_CLUSTERS-1:0] per_cluster_io_req_rw;
wire [`NUM_CLUSTERS-1:0][`NUM_THREADS-1:0][3:0] per_cluster_io_req_byteen;
wire [`NUM_CLUSTERS-1:0][`NUM_THREADS-1:0][29:0] per_cluster_io_req_addr;
wire [`NUM_CLUSTERS-1:0][`NUM_THREADS-1:0][31:0] per_cluster_io_req_data;
wire [`NUM_CLUSTERS-1:0][`L2CORE_TAG_WIDTH-1:0] per_cluster_io_req_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_io_req_ready;
wire [`NUM_CLUSTERS-1:0] per_cluster_io_rsp_valid;
wire [`NUM_CLUSTERS-1:0][`L2CORE_TAG_WIDTH-1:0] per_cluster_io_rsp_tag;
wire [`NUM_CLUSTERS-1:0][31:0] per_cluster_io_rsp_data;
wire [`NUM_CLUSTERS-1:0] per_cluster_io_rsp_ready;
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_req_valid;
wire [`NUM_CLUSTERS-1:0][11:0] per_cluster_csr_io_req_addr;
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_req_rw;
wire [`NUM_CLUSTERS-1:0][31:0] per_cluster_csr_io_req_data;
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_req_ready;
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_rsp_valid;
wire [`NUM_CLUSTERS-1:0][31:0] per_cluster_csr_io_rsp_data;
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_rsp_ready;
wire [`NUM_CLUSTERS-1:0] per_cluster_busy;
wire [`NUM_CLUSTERS-1:0] per_cluster_ebreak;
wire [`LOG2UP(`NUM_CLUSTERS)-1:0] csr_io_cluster_id = `LOG2UP(`NUM_CLUSTERS)'(csr_io_req_coreid >> `CLOG2(`NUM_CORES));
wire [`NC_BITS-1:0] csr_io_core_id = `NC_BITS'(csr_io_req_coreid);
for (genvar i = 0; i < `NUM_CLUSTERS; i++) begin
VX_cluster #(
.CLUSTER_ID(0)
.CLUSTER_ID(i)
) cluster (
`SCOPE_BIND_Vortex_cluster(0)
`SCOPE_BIND_Vortex_cluster(i)
.clk (clk),
.reset (reset),
.dram_req_valid (dram_req_valid),
.dram_req_rw (dram_req_rw),
.dram_req_byteen (dram_req_byteen),
.dram_req_addr (dram_req_addr),
.dram_req_data (dram_req_data),
.dram_req_tag (dram_req_tag),
.dram_req_ready (dram_req_ready),
.dram_rsp_valid (dram_rsp_valid),
.dram_rsp_data (dram_rsp_data),
.dram_rsp_tag (dram_rsp_tag),
.dram_rsp_ready (dram_rsp_ready),
.dram_req_valid (per_cluster_dram_req_valid [i]),
.dram_req_rw (per_cluster_dram_req_rw [i]),
.dram_req_byteen (per_cluster_dram_req_byteen[i]),
.dram_req_addr (per_cluster_dram_req_addr [i]),
.dram_req_data (per_cluster_dram_req_data [i]),
.dram_req_tag (per_cluster_dram_req_tag [i]),
.dram_req_ready (per_cluster_dram_req_ready [i]),
.snp_req_valid (snp_req_valid),
.snp_req_addr (snp_req_addr),
.snp_req_inv (snp_req_inv),
.snp_req_tag (snp_req_tag),
.snp_req_ready (snp_req_ready),
.dram_rsp_valid (per_cluster_dram_rsp_valid [i]),
.dram_rsp_data (per_cluster_dram_rsp_data [i]),
.dram_rsp_tag (per_cluster_dram_rsp_tag [i]),
.dram_rsp_ready (per_cluster_dram_rsp_ready [i]),
.snp_rsp_valid (snp_rsp_valid),
.snp_rsp_tag (snp_rsp_tag),
.snp_rsp_ready (snp_rsp_ready),
.snp_req_valid (per_cluster_snp_req_valid [i]),
.snp_req_addr (per_cluster_snp_req_addr [i]),
.snp_req_inv (per_cluster_snp_req_inv [i]),
.snp_req_tag (per_cluster_snp_req_tag [i]),
.snp_req_ready (per_cluster_snp_req_ready [i]),
.io_req_valid (io_req_valid),
.io_req_rw (io_req_rw),
.io_req_byteen (io_req_byteen),
.io_req_addr (io_req_addr),
.io_req_data (io_req_data),
.io_req_tag (io_req_tag),
.io_req_ready (io_req_ready),
.snp_rsp_valid (per_cluster_snp_rsp_valid [i]),
.snp_rsp_tag (per_cluster_snp_rsp_tag [i]),
.snp_rsp_ready (per_cluster_snp_rsp_ready [i]),
.io_rsp_valid (io_rsp_valid),
.io_rsp_data (io_rsp_data),
.io_rsp_tag (io_rsp_tag),
.io_rsp_ready (io_rsp_ready),
.io_req_valid (per_cluster_io_req_valid [i]),
.io_req_rw (per_cluster_io_req_rw [i]),
.io_req_byteen (per_cluster_io_req_byteen [i]),
.io_req_addr (per_cluster_io_req_addr [i]),
.io_req_data (per_cluster_io_req_data [i]),
.io_req_tag (per_cluster_io_req_tag [i]),
.io_req_ready (per_cluster_io_req_ready [i]),
.csr_io_req_valid (csr_io_req_valid),
.csr_io_req_coreid (csr_io_req_coreid),
.csr_io_req_rw (csr_io_req_rw),
.csr_io_req_addr (csr_io_req_addr),
.csr_io_req_data (csr_io_req_data),
.csr_io_req_ready (csr_io_req_ready),
.io_rsp_valid (per_cluster_io_rsp_valid [i]),
.io_rsp_data (per_cluster_io_rsp_data [i]),
.io_rsp_tag (per_cluster_io_rsp_tag [i]),
.io_rsp_ready (per_cluster_io_rsp_ready [i]),
.csr_io_rsp_valid (csr_io_rsp_valid),
.csr_io_rsp_data (csr_io_rsp_data),
.csr_io_rsp_ready (csr_io_rsp_ready),
.csr_io_req_valid (per_cluster_csr_io_req_valid[i]),
.csr_io_req_coreid (csr_io_core_id),
.csr_io_req_rw (per_cluster_csr_io_req_rw [i]),
.csr_io_req_addr (per_cluster_csr_io_req_addr[i]),
.csr_io_req_data (per_cluster_csr_io_req_data[i]),
.csr_io_req_ready (per_cluster_csr_io_req_ready[i]),
.busy (busy),
.ebreak (ebreak)
.csr_io_rsp_valid (per_cluster_csr_io_rsp_valid[i]),
.csr_io_rsp_data (per_cluster_csr_io_rsp_data[i]),
.csr_io_rsp_ready (per_cluster_csr_io_rsp_ready[i]),
.busy (per_cluster_busy [i]),
.ebreak (per_cluster_ebreak [i])
);
end
end else begin
VX_databus_arb #(
.NUM_REQS (`NUM_CLUSTERS),
.WORD_SIZE (4),
.TAG_IN_WIDTH (`L2CORE_TAG_WIDTH),
.TAG_OUT_WIDTH (`L3CORE_TAG_WIDTH)
) io_arb (
.clk (clk),
.reset (reset),
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_req_valid;
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_req_rw;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_BYTEEN_WIDTH-1:0] per_cluster_dram_req_byteen;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_ADDR_WIDTH-1:0] per_cluster_dram_req_addr;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_LINE_WIDTH-1:0] per_cluster_dram_req_data;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_TAG_WIDTH-1:0] per_cluster_dram_req_tag;
wire cluster_dram_req_ready;
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_rsp_valid;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_LINE_WIDTH-1:0] per_cluster_dram_rsp_data;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_TAG_WIDTH-1:0] per_cluster_dram_rsp_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_dram_rsp_ready;
// input requests
.req_valid_in (per_cluster_io_req_valid),
.req_rw_in (per_cluster_io_req_rw),
.req_byteen_in (per_cluster_io_req_byteen),
.req_addr_in (per_cluster_io_req_addr),
.req_data_in (per_cluster_io_req_data),
.req_tag_in (per_cluster_io_req_tag),
.req_ready_in (per_cluster_io_req_ready),
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_req_valid;
wire [`NUM_CLUSTERS-1:0][`L2DRAM_ADDR_WIDTH-1:0] per_cluster_snp_req_addr;
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_req_inv;
wire [`NUM_CLUSTERS-1:0][`L2SNP_TAG_WIDTH-1:0] per_cluster_snp_req_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_req_ready;
// output request
.req_valid_out (io_req_valid),
.req_rw_out (io_req_rw),
.req_byteen_out (io_req_byteen),
.req_addr_out (io_req_addr),
.req_data_out (io_req_data),
.req_tag_out (io_req_tag),
.req_ready_out (io_req_ready),
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_rsp_valid;
wire [`NUM_CLUSTERS-1:0][`L2SNP_TAG_WIDTH-1:0] per_cluster_snp_rsp_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_snp_rsp_ready;
// input responses
.rsp_valid_in (per_cluster_io_rsp_valid),
.rsp_data_in (per_cluster_io_rsp_data),
.rsp_tag_in (per_cluster_io_rsp_tag),
.rsp_ready_in (per_cluster_io_rsp_ready),
// output response
.rsp_valid_out (io_rsp_valid),
.rsp_tag_out (io_rsp_tag),
.rsp_data_out (io_rsp_data),
.rsp_ready_out (io_rsp_ready)
);
wire [`NUM_CLUSTERS-1:0][`NUM_THREADS-1:0] per_cluster_io_req_valid;
wire [`NUM_CLUSTERS-1:0] per_cluster_io_req_rw;
wire [`NUM_CLUSTERS-1:0][`NUM_THREADS-1:0][3:0] per_cluster_io_req_byteen;
wire [`NUM_CLUSTERS-1:0][`NUM_THREADS-1:0][29:0] per_cluster_io_req_addr;
wire [`NUM_CLUSTERS-1:0][`NUM_THREADS-1:0][31:0] per_cluster_io_req_data;
wire [`NUM_CLUSTERS-1:0][`L2CORE_TAG_WIDTH-1:0] per_cluster_io_req_tag;
wire [`NUM_CLUSTERS-1:0] per_cluster_io_req_ready;
VX_csr_io_arb #(
.NUM_REQS (`NUM_CLUSTERS),
.DATA_WIDTH (32),
.ADDR_WIDTH (12)
) csr_io_arb (
.clk (clk),
.reset (reset),
wire [`NUM_CLUSTERS-1:0] per_cluster_io_rsp_valid;
wire [`NUM_CLUSTERS-1:0][`L2CORE_TAG_WIDTH-1:0] per_cluster_io_rsp_tag;
wire [`NUM_CLUSTERS-1:0][31:0] per_cluster_io_rsp_data;
wire [`NUM_CLUSTERS-1:0] per_cluster_io_rsp_ready;
.request_id (csr_io_cluster_id),
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_req_valid;
wire [`NUM_CLUSTERS-1:0][11:0] per_cluster_csr_io_req_addr;
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_req_rw;
wire [`NUM_CLUSTERS-1:0][31:0] per_cluster_csr_io_req_data;
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_req_ready;
// input requests
.req_valid_in (csr_io_req_valid),
.req_addr_in (csr_io_req_addr),
.req_rw_in (csr_io_req_rw),
.req_data_in (csr_io_req_data),
.req_ready_in (csr_io_req_ready),
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_rsp_valid;
wire [`NUM_CLUSTERS-1:0][31:0] per_cluster_csr_io_rsp_data;
wire [`NUM_CLUSTERS-1:0] per_cluster_csr_io_rsp_ready;
// output request
.req_valid_out (per_cluster_csr_io_req_valid),
.req_addr_out (per_cluster_csr_io_req_addr),
.req_rw_out (per_cluster_csr_io_req_rw),
.req_data_out (per_cluster_csr_io_req_data),
.req_ready_out (per_cluster_csr_io_req_ready),
wire [`NUM_CLUSTERS-1:0] per_cluster_busy;
wire [`NUM_CLUSTERS-1:0] per_cluster_ebreak;
// input responses
.rsp_valid_in (per_cluster_csr_io_rsp_valid),
.rsp_data_in (per_cluster_csr_io_rsp_data),
.rsp_ready_in (per_cluster_csr_io_rsp_ready),
// output response
.rsp_valid_out (csr_io_rsp_valid),
.rsp_data_out (csr_io_rsp_data),
.rsp_ready_out (csr_io_rsp_ready)
);
wire [`CLOG2(`NUM_CLUSTERS)-1:0] csr_io_request_id = `CLOG2(`NUM_CLUSTERS)'(csr_io_req_coreid >> `CLOG2(`NUM_CLUSTERS));
wire [`NC_BITS-1:0] per_cluster_csr_io_req_coreid = `NC_BITS'(csr_io_req_coreid);
assign busy = (| per_cluster_busy);
assign ebreak = (| per_cluster_ebreak);
for (genvar i = 0; i < `NUM_CLUSTERS; i++) begin
VX_cluster #(
.CLUSTER_ID(i)
) cluster (
`SCOPE_BIND_Vortex_cluster(i)
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;
.clk (clk),
.reset (reset),
VX_snp_forwarder #(
.CACHE_ID (`L3CACHE_ID),
.NUM_REQS (`NUM_CLUSTERS),
.SRC_ADDR_WIDTH (`L3DRAM_ADDR_WIDTH),
.DST_ADDR_WIDTH (`L2DRAM_ADDR_WIDTH),
.TAG_IN_WIDTH (`L3SNP_TAG_WIDTH),
.TAG_OUT_WIDTH (`L2SNP_TAG_WIDTH),
.SNRQ_SIZE (`L3SNRQ_SIZE)
) snp_forwarder (
.clk (clk),
.reset (reset),
.dram_req_valid (per_cluster_dram_req_valid [i]),
.dram_req_rw (per_cluster_dram_req_rw [i]),
.dram_req_byteen (per_cluster_dram_req_byteen[i]),
.dram_req_addr (per_cluster_dram_req_addr [i]),
.dram_req_data (per_cluster_dram_req_data [i]),
.dram_req_tag (per_cluster_dram_req_tag [i]),
.dram_req_ready (cluster_dram_req_ready),
.snp_req_valid (snp_req_valid),
.snp_req_addr (snp_req_addr),
.snp_req_inv (snp_req_inv),
.snp_req_tag (snp_req_tag),
.snp_req_ready (snp_req_ready),
.dram_rsp_valid (per_cluster_dram_rsp_valid [i]),
.dram_rsp_data (per_cluster_dram_rsp_data [i]),
.dram_rsp_tag (per_cluster_dram_rsp_tag [i]),
.dram_rsp_ready (per_cluster_dram_rsp_ready [i]),
.snp_rsp_valid (snp_fwd_rsp_valid),
.snp_rsp_addr (snp_fwd_rsp_addr),
.snp_rsp_inv (snp_fwd_rsp_inv),
.snp_rsp_tag (snp_fwd_rsp_tag),
.snp_rsp_ready (snp_fwd_rsp_ready),
.snp_req_valid (per_cluster_snp_req_valid [i]),
.snp_req_addr (per_cluster_snp_req_addr [i]),
.snp_req_inv (per_cluster_snp_req_inv [i]),
.snp_req_tag (per_cluster_snp_req_tag [i]),
.snp_req_ready (per_cluster_snp_req_ready [i]),
.snp_fwdout_valid (per_cluster_snp_req_valid),
.snp_fwdout_addr (per_cluster_snp_req_addr),
.snp_fwdout_inv (per_cluster_snp_req_inv),
.snp_fwdout_tag (per_cluster_snp_req_tag),
.snp_fwdout_ready (per_cluster_snp_req_ready),
.snp_rsp_valid (per_cluster_snp_rsp_valid [i]),
.snp_rsp_tag (per_cluster_snp_rsp_tag [i]),
.snp_rsp_ready (per_cluster_snp_rsp_ready [i]),
.snp_fwdin_valid (per_cluster_snp_rsp_valid),
.snp_fwdin_tag (per_cluster_snp_rsp_tag),
.snp_fwdin_ready (per_cluster_snp_rsp_ready)
);
.io_req_valid (per_cluster_io_req_valid [i]),
.io_req_rw (per_cluster_io_req_rw [i]),
.io_req_byteen (per_cluster_io_req_byteen [i]),
.io_req_addr (per_cluster_io_req_addr [i]),
.io_req_data (per_cluster_io_req_data [i]),
.io_req_tag (per_cluster_io_req_tag [i]),
.io_req_ready (per_cluster_io_req_ready [i]),
.io_rsp_valid (per_cluster_io_rsp_valid [i]),
.io_rsp_data (per_cluster_io_rsp_data [i]),
.io_rsp_tag (per_cluster_io_rsp_tag [i]),
.io_rsp_ready (per_cluster_io_rsp_ready [i]),
.csr_io_req_valid (per_cluster_csr_io_req_valid[i]),
.csr_io_req_coreid (per_cluster_csr_io_req_coreid),
.csr_io_req_rw (per_cluster_csr_io_req_rw [i]),
.csr_io_req_addr (per_cluster_csr_io_req_addr[i]),
.csr_io_req_data (per_cluster_csr_io_req_data[i]),
.csr_io_req_ready (per_cluster_csr_io_req_ready[i]),
.csr_io_rsp_valid (per_cluster_csr_io_rsp_valid[i]),
.csr_io_rsp_data (per_cluster_csr_io_rsp_data[i]),
.csr_io_rsp_ready (per_cluster_csr_io_rsp_ready[i]),
.busy (per_cluster_busy [i]),
.ebreak (per_cluster_ebreak [i])
);
end
VX_databus_arb #(
.NUM_REQS (`NUM_CLUSTERS),
.WORD_SIZE (4),
.TAG_IN_WIDTH (`L2CORE_TAG_WIDTH),
.TAG_OUT_WIDTH (`L3CORE_TAG_WIDTH)
) io_arb (
.clk (clk),
.reset (reset),
// input requests
.req_valid_in (per_cluster_io_req_valid),
.req_rw_in (per_cluster_io_req_rw),
.req_byteen_in (per_cluster_io_req_byteen),
.req_addr_in (per_cluster_io_req_addr),
.req_data_in (per_cluster_io_req_data),
.req_tag_in (per_cluster_io_req_tag),
.req_ready_in (per_cluster_io_req_ready),
// output request
.req_valid_out (io_req_valid),
.req_rw_out (io_req_rw),
.req_byteen_out (io_req_byteen),
.req_addr_out (io_req_addr),
.req_data_out (io_req_data),
.req_tag_out (io_req_tag),
.req_ready_out (io_req_ready),
// input responses
.rsp_valid_in (per_cluster_io_rsp_valid),
.rsp_data_in (per_cluster_io_rsp_data),
.rsp_tag_in (per_cluster_io_rsp_tag),
.rsp_ready_in (per_cluster_io_rsp_ready),
// output response
.rsp_valid_out (io_rsp_valid),
.rsp_tag_out (io_rsp_tag),
.rsp_data_out (io_rsp_data),
.rsp_ready_out (io_rsp_ready)
);
VX_csr_io_arb #(
.NUM_REQS (`NUM_CLUSTERS),
.DATA_WIDTH (32),
.ADDR_WIDTH (12)
) csr_io_arb (
.clk (clk),
.reset (reset),
.request_id (csr_io_request_id),
// input requests
.req_valid_in (csr_io_req_valid),
.req_addr_in (csr_io_req_addr),
.req_rw_in (csr_io_req_rw),
.req_data_in (csr_io_req_data),
.req_ready_in (csr_io_req_ready),
// output request
.req_valid_out (per_cluster_csr_io_req_valid),
.req_addr_out (per_cluster_csr_io_req_addr),
.req_rw_out (per_cluster_csr_io_req_rw),
.req_data_out (per_cluster_csr_io_req_data),
.req_ready_out (per_cluster_csr_io_req_ready),
// input responses
.rsp_valid_in (per_cluster_csr_io_rsp_valid),
.rsp_data_in (per_cluster_csr_io_rsp_data),
.rsp_ready_in (per_cluster_csr_io_rsp_ready),
// output response
.rsp_valid_out (csr_io_rsp_valid),
.rsp_data_out (csr_io_rsp_data),
.rsp_ready_out (csr_io_rsp_ready)
);
assign busy = (| per_cluster_busy);
assign ebreak = (| per_cluster_ebreak);
// L3 Cache ///////////////////////////////////////////////////////////
if (`L3_ENABLE) begin
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 cluster_dram_rsp_ready;
reg [`NUM_CLUSTERS-1:0] cluster_dram_rsp_ready_other;
always @(*) begin
cluster_dram_rsp_ready_other = {`NUM_CLUSTERS{1'b1}};
for (integer i = 0; i < `NUM_CLUSTERS; i++) begin
@@ -354,39 +325,10 @@ module Vortex (
end
assign cluster_dram_rsp_ready = & (per_cluster_dram_rsp_ready | ~cluster_dram_rsp_valid);
VX_snp_forwarder #(
.CACHE_ID (`L3CACHE_ID),
.NUM_REQS (`NUM_CLUSTERS),
.SRC_ADDR_WIDTH (`L3DRAM_ADDR_WIDTH),
.DST_ADDR_WIDTH (`L2DRAM_ADDR_WIDTH),
.SNP_TAG_WIDTH (`L3SNP_TAG_WIDTH),
.SNRQ_SIZE (`L3SNRQ_SIZE)
) snp_forwarder (
.clk (clk),
.reset (reset),
.snp_req_valid (snp_req_valid),
.snp_req_addr (snp_req_addr),
.snp_req_inv (snp_req_inv),
.snp_req_tag (snp_req_tag),
.snp_req_ready (snp_req_ready),
.snp_rsp_valid (snp_fwd_rsp_valid),
.snp_rsp_addr (snp_fwd_rsp_addr),
.snp_rsp_inv (snp_fwd_rsp_inv),
.snp_rsp_tag (snp_fwd_rsp_tag),
.snp_rsp_ready (snp_fwd_rsp_ready),
.snp_fwdout_valid (per_cluster_snp_req_valid),
.snp_fwdout_addr (per_cluster_snp_req_addr),
.snp_fwdout_inv (per_cluster_snp_req_inv),
.snp_fwdout_tag (per_cluster_snp_req_tag),
.snp_fwdout_ready (per_cluster_snp_req_ready),
.snp_fwdin_valid (per_cluster_snp_rsp_valid),
.snp_fwdin_tag (per_cluster_snp_rsp_tag),
.snp_fwdin_ready (per_cluster_snp_rsp_ready)
);
wire cluster_dram_req_ready;
for (genvar i = 0; i < `NUM_CLUSTERS; i++) begin
assign per_cluster_dram_req_ready[i] = cluster_dram_req_ready;
end
VX_cache #(
.CACHE_ID (`L3CACHE_ID),
@@ -460,6 +402,56 @@ module Vortex (
// Miss status
`UNUSED_PIN (miss_vec)
);
end else begin
VX_mem_arb #(
.NUM_REQS (`NUM_CLUSTERS),
.DATA_WIDTH (`L3DRAM_LINE_WIDTH),
.TAG_IN_WIDTH (`L2DRAM_TAG_WIDTH),
.TAG_OUT_WIDTH (`L3DRAM_TAG_WIDTH)
) dram_arb (
.clk (clk),
.reset (reset),
// Core request
.req_valid_in (per_cluster_dram_req_valid),
.req_rw_in (per_cluster_dram_req_rw),
.req_byteen_in (per_cluster_dram_req_byteen),
.req_addr_in (per_cluster_dram_req_addr),
.req_data_in (per_cluster_dram_req_data),
.req_tag_in (per_cluster_dram_req_tag),
.req_ready_in (per_cluster_dram_req_ready),
// DRAM request
.req_valid_out (dram_req_valid),
.req_rw_out (dram_req_rw),
.req_byteen_out (dram_req_byteen),
.req_addr_out (dram_req_addr),
.req_data_out (dram_req_data),
.req_tag_out (dram_req_tag),
.req_ready_out (dram_req_ready),
// Core response
.rsp_valid_out (per_cluster_dram_rsp_valid),
.rsp_data_out (per_cluster_dram_rsp_data),
.rsp_tag_out (per_cluster_dram_rsp_tag),
.rsp_ready_out (per_cluster_dram_rsp_ready),
// DRAM response
.rsp_valid_in (dram_rsp_valid),
.rsp_tag_in (dram_rsp_tag),
.rsp_data_in (dram_rsp_data),
.rsp_ready_in (dram_rsp_ready)
);
`UNUSED_VAR (snp_fwd_rsp_addr)
`UNUSED_VAR (snp_fwd_rsp_inv)
assign snp_rsp_valid = snp_fwd_rsp_valid;
assign snp_rsp_tag = snp_fwd_rsp_tag;
assign snp_fwd_rsp_ready = snp_rsp_ready;
end
`SCOPE_ASSIGN (reset, reset);