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adding predicate instruction

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This commit is contained in:
Blaise Tine
2021-08-31 03:23:59 -04:00
parent 6caf674163
commit c162ce526f
7 changed files with 57 additions and 32 deletions
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12
hw/rtl/VX_gpu_unit.v
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@@ -19,6 +19,7 @@ module VX_gpu_unit #(
`UNUSED_PARAM (CORE_ID)
`UNUSED_VAR (clk)
`UNUSED_VAR (reset)
`UNUSED_VAR (gpu_req_if.op_mod)
gpu_tmc_t tmc;
gpu_wspawn_t wspawn;
@@ -29,11 +30,18 @@ module VX_gpu_unit #(
wire is_tmc = (gpu_req_if.op_type == `GPU_TMC);
wire is_split = (gpu_req_if.op_type == `GPU_SPLIT);
wire is_bar = (gpu_req_if.op_type == `GPU_BAR);
wire is_pred = (gpu_req_if.op_type == `GPU_PRED);
// tmc
assign tmc.valid = is_tmc;
assign tmc.tmask = `NUM_THREADS'(gpu_req_if.rs1_data[gpu_req_if.tid]);
wire [`NUM_THREADS-1:0] pred_cond;
for (genvar i = 0; i < `NUM_THREADS; i++) begin
assign pred_cond[i] = gpu_req_if.tmask[i] && gpu_req_if.rs1_data[i][0];
end
wire [`NUM_THREADS-1:0] pred = (pred_cond != 0) ? pred_cond : gpu_req_if.tmask;
assign tmc.valid = is_tmc || is_pred;
assign tmc.tmask = is_pred ? pred : `NUM_THREADS'(gpu_req_if.rs1_data[gpu_req_if.tid]);
// wspawn