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lsu_unit refactoring to reduce critical path

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This commit is contained in:
Blaise Tine
2020-07-10 11:23:34 -07:00
parent bca36e213e
commit 77c3b2d45f
9 changed files with 124 additions and 123 deletions
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46
hw/rtl/VX_warp_sched.v
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@@ -1,14 +1,14 @@
`include "VX_define.vh"
module VX_warp_sched (
input wire clk, // Clock
input wire reset,
input wire stall,
input wire clk,
input wire reset,
input wire stall,
// Wspawn
input wire wspawn,
input wire[31:0] wsapwn_pc,
input wire[`NUM_WARPS-1:0] wspawn_new_active,
input wire wspawn,
input wire[31:0] wsapwn_pc,
input wire[`NUM_WARPS-1:0] wspawn_new_active,
// CTM
input wire ctm,
@@ -28,38 +28,38 @@ module VX_warp_sched (
// WSTALL
input wire wstall,
input wire[`NW_BITS-1:0] wstall_warp_num,
input wire [`NW_BITS-1:0] wstall_warp_num,
// Split
input wire is_split,
input wire dont_split,
input wire[`NUM_THREADS-1:0] split_new_mask,
input wire[`NUM_THREADS-1:0] split_later_mask,
input wire[31:0] split_save_pc,
input wire[`NW_BITS-1:0] split_warp_num,
input wire [`NUM_THREADS-1:0] split_new_mask,
input wire [`NUM_THREADS-1:0] split_later_mask,
input wire [31:0] split_save_pc,
input wire [`NW_BITS-1:0] split_warp_num,
// Join
input wire is_join,
input wire[`NW_BITS-1:0] join_warp_num,
input wire [`NW_BITS-1:0] join_warp_num,
// JAL
input wire jal,
input wire[31:0] dest,
input wire[`NW_BITS-1:0] jal_warp_num,
input wire [31:0] dest,
input wire [`NW_BITS-1:0] jal_warp_num,
// Branch
input wire branch_valid,
input wire branch_dir,
input wire[31:0] branch_dest,
input wire[`NW_BITS-1:0] branch_warp_num,
input wire [31:0] branch_dest,
input wire [`NW_BITS-1:0] branch_warp_num,
output wire[`NUM_THREADS-1:0] thread_mask,
output wire[`NW_BITS-1:0] warp_num,
output wire[31:0] warp_pc,
output wire [`NUM_THREADS-1:0] thread_mask,
output wire [`NW_BITS-1:0] warp_num,
output wire [31:0] warp_pc,
output wire busy,
output wire scheduled_warp,
input wire[`NW_BITS-1:0] icache_stage_wid,
input wire [`NW_BITS-1:0] icache_stage_wid,
input wire icache_stage_response
);
wire update_use_wspawn;
@@ -209,18 +209,18 @@ module VX_warp_sched (
// Branch
if (branch_valid) begin
if (branch_dir) warp_pcs[branch_warp_num] <= branch_dest;
if (branch_dir) begin
warp_pcs[branch_warp_num] <= branch_dest;
end
warp_stalled[branch_warp_num] <= 0;
end
// Lock/Release
if (scheduled_warp && !stall) begin
warp_lock[warp_num] <= 1'b1;
// warp_lock <= {`NUM_WARPS{1'b1}};
end
if (icache_stage_response) begin
warp_lock[icache_stage_wid] <= 1'b0;
// warp_lock <= {`NUM_WARPS{1'b0}};
end
end