wu-arch/vortex
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

thread mask redesign

Browse Source
This commit is contained in:
Blaise Tine
2021-08-05 17:32:58 -07:00
parent 7b8fe11e6a
commit e4d9fd8a00
14 changed files with 68 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
hw/rtl/VX_gpu_unit.v
View File

@@ -32,19 +32,15 @@ module VX_gpu_unit #(
// tmc
wire [`NUM_THREADS-1:0] tmc_new_mask;
for (genvar i = 0; i < `NUM_THREADS; i++) begin
assign tmc_new_mask[i] = (i < gpu_req_if.rs1_data[0]);
end
assign tmc.valid = is_tmc;
assign tmc.tmask = tmc_new_mask;
assign tmc.tmask = `NUM_THREADS'(gpu_req_if.rs1_data[gpu_req_if.tid]);
// wspawn
wire [31:0] wspawn_pc = gpu_req_if.rs2_data;
wire [`NUM_WARPS-1:0] wspawn_wmask;
for (genvar i = 0; i < `NUM_WARPS; i++) begin
assign wspawn_wmask[i] = (i < gpu_req_if.rs1_data[0]);
assign wspawn_wmask[i] = (i < gpu_req_if.rs1_data[gpu_req_if.tid]);
end
assign wspawn.valid = is_wspawn;
assign wspawn.wmask = wspawn_wmask;
@@ -56,7 +52,7 @@ module VX_gpu_unit #(
wire [`NUM_THREADS-1:0] split_else_mask;
for (genvar i = 0; i < `NUM_THREADS; i++) begin
wire taken = gpu_req_if.rs1_data[i][0];
wire taken = gpu_req_if.rs1_data[i][gpu_req_if.tid];
assign split_then_mask[i] = gpu_req_if.tmask[i] & taken;
assign split_else_mask[i] = gpu_req_if.tmask[i] & ~taken;
end
@@ -70,7 +66,7 @@ module VX_gpu_unit #(
// barrier
assign barrier.valid = is_bar;
assign barrier.id = gpu_req_if.rs1_data[0][`NB_BITS-1:0];
assign barrier.id = gpu_req_if.rs1_data[gpu_req_if.tid][`NB_BITS-1:0];
assign barrier.size_m1 = (`NW_BITS)'(gpu_req_if.rs2_data - 1);
// output