round robin arbiter + auto buffered queue + fixed dcache arbiter

2020-06-20 17:56:04 -04:00
parent 9c157e4929
commit d3440de403
30 changed files with 339 additions and 209 deletions
--- a/hw/rtl/VX_warp_sched.v
+++ b/hw/rtl/VX_warp_sched.v
@@ -308,12 +308,15 @@ module VX_warp_sched (
    assign use_active = (count_visible_active != 0) ? visible_active : (warp_active & (~warp_stalled) & (~total_barrier_stall) & (~warp_lock));

    // Choosing a warp to schedule
-    VX_priority_encoder #(
+    VX_rr_arbiter #(
        .N(`NUM_WARPS)
    ) choose_schedule (
-        .valids (use_active),
-        .index  (warp_to_schedule),
-        .found  (schedule)
+        .clk         (clk),
+        .reset       (reset),
+        .requests    (use_active),
+        .grant_index (warp_to_schedule),
+        .grant_valid (schedule),
+        `UNUSED_PIN  (grant_onehot)
    );

    // always @(*) begin