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pipeline refactoring

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This commit is contained in:
Blaise Tine
2020-07-21 05:22:47 -04:00
parent e2100e9e87
commit dc7efbcfb4
31 changed files with 1437 additions and 6038 deletions
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14
hw/rtl/VX_gpu_unit.v
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@@ -16,12 +16,11 @@ module VX_gpu_unit #(
wire is_split = (gpu_req_if.gpu_op == `GPU_SPLIT);
wire is_bar = (gpu_req_if.gpu_op == `GPU_BAR);
wire [`NUM_THREADS-1:0] tmc_new_mask;
wire all_threads = `NUM_THREADS < gpu_req_if.rs1_data[0];
wire [`NUM_THREADS-1:0] tmc_new_mask;
genvar i;
for (i = 0; i < `NUM_THREADS; i++) begin : tmc_new_mask_init
assign tmc_new_mask[i] = all_threads ? 1 : i < gpu_req_if.rs1_data[0];
assign tmc_new_mask[i] = (i < gpu_req_if.rs1_data[0]);
end
wire valid_inst = (| curr_valids);
@@ -35,11 +34,10 @@ module VX_gpu_unit #(
wire wspawn = is_wspawn && valid_inst;
wire [31:0] wspawn_pc = gpu_req_if.rs2_data;
wire all_active = `NUM_WARPS < gpu_req_if.rs1_data[0];
wire [`NUM_WARPS-1:0] wspawn_new_active;
for (i = 0; i < `NUM_WARPS; i++) begin : wspawn_new_active_init
assign wspawn_new_active[i] = all_active ? 1 : i < gpu_req_if.rs1_data[0];
assign wspawn_new_active[i] = (i < gpu_req_if.rs1_data[0]);
end
assign warp_ctl_if.is_barrier = is_bar && valid_inst;
@@ -75,12 +73,14 @@ module VX_gpu_unit #(
assign warp_ctl_if.split_later_mask = split_new_later_mask;
assign warp_ctl_if.split_save_pc = gpu_req_if.next_PC;
assign gpu_req_if.ready = 1'b1; // has no stalls
assign gpu_req_if.ready = gpu_commit_if.ready;
// commit
assign gpu_commit_if.valid = gpu_req_if.valid;
assign gpu_commit_if.warp_num = gpu_req_if.warp_num;
assign gpu_commit_if.curr_PC = gpu_req_if.curr_PC;
assign gpu_commit_if.wb = `WB_NO;
assign gpu_commit_if.rd = 0;
assign gpu_commit_if.data = 0;
endmodule