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optimized avs_pending_reads in vortex_afu.sv

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This commit is contained in:
Blaise Tine
2020-05-23 19:54:37 -04:00
parent 507622f1a1
commit 9398c07afb
4 changed files with 3507 additions and 25451 deletions
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24
hw/opae/vortex_afu.sv
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@@ -112,7 +112,6 @@ logic avs_rdq_pop;
t_local_mem_data avs_rdq_dout;
logic avs_rdq_empty;
logic avs_rdq_full;
logic [`LOG2UP(AVS_RD_QUEUE_SIZE+1)-1:0] avs_rdq_size;
// CSR variables //////////////////////////////////////////////////////////////
@@ -318,7 +317,7 @@ logic cci_dram_req_write_fire;
logic vx_dram_req_read_fire;
logic vx_dram_req_write_fire;
logic vx_dram_rsp_fire;
logic [`LOG2UP(AVS_RD_QUEUE_SIZE+1)-1:0] avs_pending_reads, avs_pending_rds_next;
logic [`LOG2UP(AVS_RD_QUEUE_SIZE+1)-1:0] avs_pending_reads, avs_pending_reads_next;
t_ccip_clAddr next_avs_address;
always_comb
@@ -333,7 +332,7 @@ begin
&& avs_write_ctr < csr_data_size);
cci_dram_req_read_fire = (state == STATE_READ)
&& ((avs_pending_reads + avs_rdq_size) < AVS_RD_QUEUE_SIZE)
&& ((avs_pending_reads < AVS_RD_QUEUE_SIZE)
&& !avs_waitrequest
&& avs_read_ctr < csr_data_size;
@@ -347,14 +346,14 @@ begin
vx_dram_rsp_fire = vx_dram_rsp_valid && vx_dram_rsp_ready;
if ((cci_dram_req_read_fire || vx_dram_req_read_fire)
&& ~avs_readdatavalid) begin
avs_pending_rds_next = avs_pending_reads + 1;
&& ~avs_rdq_pop) begin
avs_pending_reads_next = avs_pending_reads + 1;
end else
if (~(cci_dram_req_read_fire || vx_dram_req_read_fire)
&& avs_readdatavalid) begin
avs_pending_rds_next = avs_pending_reads - 1;
&& avs_rdq_pop) begin
avs_pending_reads_next = avs_pending_reads - 1;
end else begin
avs_pending_rds_next = avs_pending_reads;
avs_pending_reads_next = avs_pending_reads;
end
cmd_write_done = (avs_write_ctr >= csr_data_size);
@@ -421,11 +420,11 @@ begin
`ifdef DBG_PRINT_OPAE
if (avs_readdatavalid) begin
$display("%t: AVS Rd Rsp: pending=%0d", $time, avs_pending_rds_next);
$display("%t: AVS Rd Rsp: pending=%0d", $time, avs_pending_reads_next);
end
`endif
avs_pending_reads <= avs_pending_rds_next;
avs_pending_reads <= avs_pending_reads_next;
end
end
@@ -435,7 +434,7 @@ always_comb
begin
vx_dram_req_ready = vortex_enabled
&& !avs_waitrequest
&& ((avs_pending_reads + avs_rdq_size) < AVS_RD_QUEUE_SIZE);
&& (avs_pending_reads < AVS_RD_QUEUE_SIZE);
end
// Vortex DRAM fill response
@@ -492,8 +491,7 @@ VX_generic_queue #(
.pop (avs_rdq_pop),
.data_out (avs_rdq_dout),
.empty (avs_rdq_empty),
.full (avs_rdq_full),
.size (avs_rdq_size)
.full (avs_rdq_full)
);
// CCI Read Request ///////////////////////////////////////////////////////////