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gate level sim changes

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This commit is contained in:
Richard Yan
2024-06-09 15:15:01 -07:00
parent d624b3e50a
commit 67a13410fd
3 changed files with 33 additions and 7 deletions
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16
hw/rtl/VX_core_wrapper.sv
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@@ -152,7 +152,7 @@ module Vortex import VX_gpu_pkg::*; #(
if (reset) begin
busy_prev <= 1'b0;
finished_reg <= 1'b0;
intr_counter <= 4'h0;
intr_counter <= 4'h8;
end else begin
// Vortex core's busy signal goes up some cycles after the reset,
// so we can't simply use ~busy as finished because of the initial
@@ -165,8 +165,8 @@ module Vortex import VX_gpu_pkg::*; #(
if (~msip_1d && interrupts_msip) begin
// rising edge
intr_counter <= 4'h6;
end else begin
intr_counter <= 4'h7;
end else if (intr_counter <= 4'h7) begin
intr_counter <= intr_counter > 0 ? intr_counter - 4'h1 : 4'h0;
end
end
@@ -310,7 +310,6 @@ module Vortex import VX_gpu_pkg::*; #(
logic [3:0] reset_start_counter;
logic core_reset;
logic dcr_reset;
always @(posedge clock) begin
if (reset) begin
@@ -323,8 +322,7 @@ module Vortex import VX_gpu_pkg::*; #(
end
// Delay reset signal by a few cycles to make time for resetting the DCR
// (device configuration registers).
assign core_reset = reset || (reset_start_counter != 4'h0); // || intr_reset;
assign dcr_reset = !reset && (reset_start_counter != 4'h0);
assign core_reset = reset || (reset_start_counter != 4'h0) || intr_reset;
// A small FSM that tries to set DCR "properly" in the same order as
// defined in VX_types.vh.
@@ -500,6 +498,12 @@ module Vortex import VX_gpu_pkg::*; #(
always @(*) begin
if (busy === 1'b0) begin
$display("---------------- no more active warps ----------------");
`ifdef SIMULATION
if ($time >= 60000) begin
$display("simulation has probably ended. exiting");
@(posedge clock) $finish();
end
`endif
// TODO: lane assumed to be 4
// `ifndef SYNTHESIS
// for (integer j = 0; j < `NUM_WARPS; j++) begin