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minor fix in VX_local_mem.sv

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This commit is contained in:
Blaise Tine 2024-08-02 19:19:57 -07:00
parent 067b7a8726
commit e8cdae1225
1 changed files with 15 additions and 12 deletions
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27
hw/rtl/mem/VX_local_mem.sv
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@ -160,6 +160,9 @@ module VX_local_mem import VX_gpu_pkg::*; #(
`RESET_RELAY (bank_reset, reset);
for (genvar i = 0; i < NUM_BANKS; ++i) begin
wire bank_req_valid, bank_req_ready;
wire [WORD_WIDTH-1:0] bank_rsp_data;
VX_sp_ram #(
.DATAW (WORD_WIDTH),
.SIZE (WORDS_PER_BANK),
@ -172,24 +175,24 @@ module VX_local_mem import VX_gpu_pkg::*; #(
.wren (per_bank_req_byteen[i]),
.addr (per_bank_req_addr[i]),
.wdata (per_bank_req_data[i]),
.rdata (per_bank_rsp_data[i])
.rdata (bank_rsp_data)
);
// drop write response
wire per_bank_req_valid_w, per_bank_req_ready_w;
assign per_bank_req_valid_w = per_bank_req_valid[i] && ~per_bank_req_rw[i];
assign per_bank_req_ready[i] = per_bank_req_ready_w || per_bank_req_rw[i];
assign bank_req_valid = per_bank_req_valid[i] && ~per_bank_req_rw[i];
assign per_bank_req_ready[i] = bank_req_ready || per_bank_req_rw[i];
// register BRAM output
VX_elastic_buffer #(
.DATAW (REQ_SEL_WIDTH + TAG_WIDTH),
.DATAW (REQ_SEL_WIDTH + WORD_WIDTH + TAG_WIDTH),
.SIZE (1)
) bank_buf (
.clk (clk),
.reset (bank_reset),
.valid_in (per_bank_req_valid_w),
.ready_in (per_bank_req_ready_w),
.data_in ({per_bank_req_idx[i], per_bank_req_tag[i]}),
.data_out ({per_bank_rsp_idx[i], per_bank_rsp_tag[i]}),
.valid_in (bank_req_valid),
.ready_in (bank_req_ready),
.data_in ({per_bank_req_idx[i], bank_rsp_data, per_bank_req_tag[i]}),
.data_out ({per_bank_rsp_idx[i], per_bank_rsp_data[i], per_bank_rsp_tag[i]}),
.valid_out (per_bank_rsp_valid[i]),
.ready_out (per_bank_rsp_ready[i])
);
@ -197,10 +200,10 @@ module VX_local_mem import VX_gpu_pkg::*; #(
// bank responses gather
wire [NUM_BANKS-1:0][RSP_DATAW-1:0] per_bank_rsp_data_all;
wire [NUM_BANKS-1:0][RSP_DATAW-1:0] per_bank_rsp_data2;
for (genvar i = 0; i < NUM_BANKS; ++i) begin
assign per_bank_rsp_data_all[i] = {per_bank_rsp_data[i], per_bank_rsp_tag[i]};
assign per_bank_rsp_data2[i] = {per_bank_rsp_data[i], per_bank_rsp_tag[i]};
end
wire [NUM_REQS-1:0] rsp_valid_out;
@ -219,7 +222,7 @@ module VX_local_mem import VX_gpu_pkg::*; #(
`UNUSED_PIN (collisions),
.sel_in (per_bank_rsp_idx),
.valid_in (per_bank_rsp_valid),
.data_in (per_bank_rsp_data_all),
.data_in (per_bank_rsp_data2),
.ready_in (per_bank_rsp_ready),
.valid_out (rsp_valid_out),
.data_out (rsp_data_out),