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adding dram writeenable support + scheduler bug fixes

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This commit is contained in:
Blaise Tine
2020-05-27 19:00:23 -04:00
parent a9f896b4f3
commit 9e5885b820
96 changed files with 21656 additions and 86621 deletions
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25
hw/rtl/VX_scheduler.v
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@@ -14,12 +14,12 @@ module VX_scheduler (
);
reg[31:0] count_valid;
assign is_empty = count_valid == 0;
assign is_empty = (count_valid == 0);
reg[31:0][`NUM_THREADS-1:0] rename_table[`NUM_WARPS-1:0];
wire valid_wb = (writeback_if.wb != 0) && (| writeback_if.valid) && (writeback_if.rd != 0);
wire wb_inc = (bckE_req_if.wb != 0) && (bckE_req_if.rd != 0);
wire valid_wb = (| writeback_if.valid) && (writeback_if.wb != 0) && (writeback_if.rd != 0);
wire wb_inc = (| bckE_req_if.valid) && (bckE_req_if.wb != 0) && (bckE_req_if.rd != 0);
wire rs1_rename = (rename_table[bckE_req_if.warp_num][bckE_req_if.rs1] != 0);
wire rs2_rename = (rename_table[bckE_req_if.warp_num][bckE_req_if.rs2] != 0);
@@ -50,9 +50,7 @@ module VX_scheduler (
integer i, w;
wire[`NUM_THREADS-1:0] old_rename_mask = rename_table[writeback_if.warp_num][writeback_if.rd];
wire[`NUM_THREADS-1:0] invalidate_mask = ~writeback_if.valid;
wire[`NUM_THREADS-1:0] valid_wb_new_mask = old_rename_mask & invalidate_mask;
wire [`NUM_THREADS-1:0] valid_wb_new_mask = rename_table[writeback_if.warp_num][writeback_if.rd] & ~writeback_if.valid;
always @(posedge clk) begin
if (reset) begin
@@ -63,21 +61,16 @@ module VX_scheduler (
end
end else begin
if (valid_wb) begin
rename_table[writeback_if.warp_num][writeback_if.rd] <= valid_wb_new_mask;
rename_table[writeback_if.warp_num][writeback_if.rd] <= valid_wb_new_mask;
if (0 == valid_wb_new_mask) begin
count_valid <= count_valid - 1;
end
end
if (!schedule_delay && wb_inc) begin
rename_table[bckE_req_if.warp_num][bckE_req_if.rd] <= bckE_req_if.valid;
end
if (valid_wb
&& (0 == (rename_table[writeback_if.warp_num][writeback_if.rd] & ~writeback_if.valid))) begin
count_valid <= count_valid - 1;
end
if (!schedule_delay && wb_inc) begin
count_valid <= count_valid + 1;
end
end
end
end