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AVS wrapper optimization

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This commit is contained in:
Blaise Tine
2021-07-16 12:58:53 -07:00
parent 5c58f7eec6
commit a8248b334c
2 changed files with 10 additions and 7 deletions
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15
hw/rtl/afu/VX_avs_wrapper.v
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@@ -44,13 +44,14 @@ module VX_avs_wrapper #(
);
localparam BANK_ADDRW = `LOG2UP(NUM_BANKS);
localparam BUFFERED_OUTPUT = (NUM_BANKS > 2);
// Requests handling
wire [NUM_BANKS-1:0] avs_reqq_push, avs_reqq_pop, avs_reqq_ready;
wire [NUM_BANKS-1:0][REQ_TAG_WIDTH-1:0] avs_reqq_tag_out;
wire [NUM_BANKS-1:0] req_queue_going_full;
wire [NUM_BANKS-1:0][RD_QUEUE_ADDR_WIDTH-1:0] req_queue_size;
wire [NUM_BANKS-1:0][REQ_TAG_WIDTH-1:0] avs_reqq_data_out;
wire [BANK_ADDRW-1:0] req_bank_sel;
if (NUM_BANKS >= 2) begin
@@ -80,14 +81,15 @@ module VX_avs_wrapper #(
VX_fifo_queue #(
.DATAW (REQ_TAG_WIDTH),
.SIZE (RD_QUEUE_SIZE)
.SIZE (RD_QUEUE_SIZE),
.BUFFERED (!BUFFERED_OUTPUT)
) rd_req_queue (
.clk (clk),
.reset (reset),
.push (avs_reqq_push[i]),
.pop (avs_reqq_pop[i]),
.data_in (mem_req_tag),
.data_out (avs_reqq_data_out[i]),
.data_out (avs_reqq_tag_out[i]),
`UNUSED_PIN (empty),
`UNUSED_PIN (full),
`UNUSED_PIN (alm_empty),
@@ -123,7 +125,8 @@ module VX_avs_wrapper #(
for (genvar i = 0; i < NUM_BANKS; i++) begin
VX_fifo_queue #(
.DATAW (AVS_DATA_WIDTH),
.SIZE (RD_QUEUE_SIZE)
.SIZE (RD_QUEUE_SIZE),
.BUFFERED (!BUFFERED_OUTPUT)
) rd_rsp_queue (
.clk (clk),
.reset (reset),
@@ -141,14 +144,14 @@ module VX_avs_wrapper #(
for (genvar i = 0; i < NUM_BANKS; i++) begin
assign rsp_arb_valid_in[i] = !avs_rspq_empty[i];
assign rsp_arb_data_in[i] = {avs_rspq_data_out[i], avs_reqq_data_out[i]};
assign rsp_arb_data_in[i] = {avs_rspq_data_out[i], avs_reqq_tag_out[i]};
assign avs_reqq_pop[i] = rsp_arb_valid_in[i] && rsp_arb_ready_in[i];
end
VX_stream_arbiter #(
.NUM_REQS (NUM_BANKS),
.DATAW (AVS_DATA_WIDTH + REQ_TAG_WIDTH),
.BUFFERED (NUM_BANKS > 2)
.BUFFERED (BUFFERED_OUTPUT)
) rsp_arb (
.clk (clk),
.reset (reset),

2
hw/rtl/afu/vortex_afu.sv
View File

@@ -47,7 +47,7 @@ localparam CCI_LINE_WIDTH = $bits(t_ccip_clData);
localparam CCI_LINE_SIZE = CCI_LINE_WIDTH / 8;
localparam CCI_ADDR_WIDTH = 32 - $clog2(CCI_LINE_SIZE);
localparam AVS_RD_QUEUE_SIZE = 16;
localparam AVS_RD_QUEUE_SIZE = 4;
localparam AVS_REQ_TAGW_VX = `MAX(`VX_MEM_TAG_WIDTH, `VX_MEM_TAG_WIDTH + $clog2(LMEM_LINE_WIDTH) - $clog2(`VX_MEM_LINE_WIDTH));
localparam AVS_REQ_TAGW_CCI = `MAX(CCI_ADDR_WIDTH, CCI_ADDR_WIDTH + $clog2(LMEM_LINE_WIDTH) - $clog2(CCI_LINE_WIDTH));
localparam AVS_REQ_TAGW = `MAX(AVS_REQ_TAGW_VX, AVS_REQ_TAGW_CCI);