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Intrinsics: tests for TMC+Control Divergence

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This commit is contained in:
felsabbagh3
2019-11-01 21:53:37 -04:00
parent 2b9f6f3d0b
commit bbb2373919
14 changed files with 588 additions and 260 deletions
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18
rtl/VX_warp_scheduler.v
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@@ -29,6 +29,7 @@ module VX_warp_scheduler (
// Split
input wire is_split,
input wire dont_split,
input wire[`NT_M1:0] split_new_mask,
input wire[`NT_M1:0] split_later_mask,
input wire[31:0] split_save_pc,
@@ -104,6 +105,8 @@ module VX_warp_scheduler (
reg[`NW-1:0] total_barrier_stall;
reg didnt_split;
/* verilator lint_off UNUSED */
// wire[$clog2(`NW):0] num_active;
/* verilator lint_on UNUSED */
@@ -122,6 +125,7 @@ module VX_warp_scheduler (
visible_active[0] <= 1; // Activating first warp
thread_masks[0] <= 1; // Activating first thread in first warp
warp_stalled <= 0;
didnt_split <= 0;
// total_barrier_stall = 0;
for (curr_w_help = 1; curr_w_help < `NW; curr_w_help=curr_w_help+1) begin
warp_pcs[curr_w_help] <= 0;
@@ -148,14 +152,20 @@ module VX_warp_scheduler (
end else if (ctm) begin
thread_masks[ctm_warp_num] <= ctm_mask;
warp_stalled[ctm_warp_num] <= 0;
end else if (is_join) begin
end else if (is_join && !didnt_split) begin
if (!join_fall) begin
warp_pcs[join_warp_num] <= join_pc;
end
thread_masks[join_warp_num] <= join_tm;
didnt_split <= 0;
end else if (is_split) begin
warp_stalled[split_warp_num] <= 0;
thread_masks[split_warp_num] <= split_new_mask;
if (!dont_split) begin
thread_masks[split_warp_num] <= split_new_mask;
didnt_split <= 0;
end else begin
didnt_split <= 1;
end
end
if (whalt) begin
@@ -243,9 +253,9 @@ module VX_warp_scheduler (
wire correct_warp_s = (curr_warp == split_warp_num);
wire correct_warp_j = (curr_warp == join_warp_num);
wire push = is_split && correct_warp_s;
wire push = (is_split && !dont_split) && correct_warp_s;
wire pop = is_join && correct_warp_j;
VX_generic_stack #(.WIDTH(1+32+`NT), .DEPTH($clog2(`NT))) ipdom_stack(
VX_generic_stack #(.WIDTH(1+32+`NT), .DEPTH($clog2(`NT)+1)) ipdom_stack(
.clk (clk),
.reset(reset),
.push (push),