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WSPAWN imp + tested

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This commit is contained in:
felsabbagh3
2019-10-21 23:35:53 -04:00
parent c21e400f9f
commit 31d3d51392
13 changed files with 2166 additions and 2138 deletions
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53
rtl/VX_warp_scheduler.v
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@@ -7,6 +7,7 @@ module VX_warp_scheduler (
// Wspawn
input wire wspawn,
input wire[31:0] wsapwn_pc,
input wire[`NW-1:0] wspawn_new_active,
// CTM
input wire ctm,
@@ -50,6 +51,10 @@ module VX_warp_scheduler (
);
wire update_use_wspawn;
wire update_visible_active;
wire[(1+32+`NT_M1):0] d[`NW-1:0];
wire join_fall;
@@ -72,9 +77,9 @@ module VX_warp_scheduler (
reg[31:0] warp_pcs[`NW-1:0];
// Choosing a warp to wsapwn
wire[`NW_M1:0] warp_to_wsapwn;
wire found_wspawn;
// wsapwn
reg[31:0] use_wsapwn_pc;
reg[`NW-1:0] use_wsapwn;
wire[`NW_M1:0] warp_to_schedule;
wire schedule;
@@ -111,15 +116,19 @@ module VX_warp_scheduler (
warp_pcs[curr_w_help] <= 0;
warp_active[curr_w_help] <= 0; // Activating first warp
visible_active[curr_w_help] <= 0; // Activating first warp
thread_masks[curr_w_help] <= 0; // Activating first thread in first warp
thread_masks[curr_w_help] <= 1; // Activating first thread in first warp
end
end else begin
// Wsapwning warps
if (wspawn && found_wspawn) begin
warp_pcs[warp_to_wsapwn] <= wsapwn_pc;
warp_active[warp_to_wsapwn] <= 1;
visible_active[warp_to_wsapwn] <= 1;
if (wspawn) begin
warp_active <= wspawn_new_active;
use_wsapwn_pc <= wsapwn_pc;
use_wsapwn <= wspawn_new_active & (~`NW'b1);
end
if (update_use_wspawn) begin
use_wsapwn[warp_to_schedule] <= 0;
end
// Halting warps
if (whalt) begin
@@ -152,13 +161,7 @@ module VX_warp_scheduler (
end
// Refilling active warps
if ((visible_active == 0) && !(stall || wstall || hazard || is_join)) begin
visible_active <= warp_active & (~warp_stalled);
end
// First cycle
if (start <= 2) begin
start <= 1;
if (update_visible_active) begin
visible_active <= warp_active & (~warp_stalled);
end
@@ -182,6 +185,9 @@ module VX_warp_scheduler (
end
end
assign update_visible_active = ($countones(visible_active) < 1) && !(stall || wstall || hazard || is_join);
wire[(1+32+`NT_M1):0] q1 = {1'b1, 32'b0 , thread_masks[split_warp_num]};
wire[(1+32+`NT_M1):0] q2 = {1'b0, split_save_pc , split_later_mask};
@@ -220,15 +226,18 @@ module VX_warp_scheduler (
assign global_stall = (stall || wstall || hazard || !real_schedule || is_join);
assign warp_pc = warp_pcs[warp_to_schedule];
wire real_use_wspawn = use_wsapwn[warp_to_schedule];
assign warp_pc = real_use_wspawn ? use_wsapwn_pc : warp_pcs[warp_to_schedule];
assign thread_mask = (global_stall) ? 0 : thread_masks[warp_to_schedule];
assign warp_num = warp_to_schedule;
assign update_use_wspawn = use_wsapwn[warp_to_schedule] && !global_stall;
assign new_pc = warp_pc + 4;
assign use_active = (num_active <= 1) ? (warp_active & (~warp_stalled)) : visible_active;
assign use_active = (num_active < 1) ? (warp_active & (~warp_stalled)) : visible_active;
// Choosing a warp to schedule
VX_priority_encoder choose_schedule(
@@ -238,13 +247,6 @@ module VX_warp_scheduler (
);
VX_priority_encoder choose_wsapwn(
.valids(~warp_active),
.index (warp_to_wsapwn),
.found (found_wspawn)
);
// Valid counter
VX_one_counter valid_counter(
.valids(visible_active),
@@ -252,7 +254,8 @@ module VX_warp_scheduler (
);
assign out_ebreak = (warp_active == 0);
wire ebreak = (warp_active == 0);
assign out_ebreak = ebreak;