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pipeline refactoring: centralized issue buffer

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This commit is contained in:
Blaise Tine
2020-07-26 11:21:08 -04:00
parent 1f63f9da25
commit 7c86b68977
62 changed files with 923 additions and 820 deletions
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58
hw/rtl/VX_commit.v
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@@ -11,21 +11,22 @@ module VX_commit #(
VX_commit_if lsu_commit_if,
VX_commit_if mul_commit_if,
VX_commit_if csr_commit_if,
VX_commit_fp_if fpu_commit_if,
VX_commit_if fpu_commit_if,
VX_commit_if gpu_commit_if,
// outputs
VX_commit_is_if commit_is_if,
VX_wb_if writeback_if,
VX_perf_cntrs_if perf_cntrs_if
);
wire [`NUM_EXS-1:0] commited_mask;
assign commited_mask = {((| alu_commit_if.valid) && alu_commit_if.ready),
((| lsu_commit_if.valid) && lsu_commit_if.ready),
((| csr_commit_if.valid) && csr_commit_if.ready),
((| mul_commit_if.valid) && mul_commit_if.ready),
((| fpu_commit_if.valid) && fpu_commit_if.ready),
((| gpu_commit_if.valid) && gpu_commit_if.ready)};
assign commited_mask = {(alu_commit_if.valid && alu_commit_if.ready),
(lsu_commit_if.valid && lsu_commit_if.ready),
(csr_commit_if.valid && csr_commit_if.ready),
(mul_commit_if.valid && mul_commit_if.ready),
(fpu_commit_if.valid && fpu_commit_if.ready),
(gpu_commit_if.valid && gpu_commit_if.ready)};
wire [`NE_BITS:0] num_commits;
@@ -55,6 +56,20 @@ module VX_commit #(
assign perf_cntrs_if.total_cycles = total_cycles;
assign perf_cntrs_if.total_instrs = total_instrs;
assign commit_is_if.alu_valid = alu_commit_if.valid && alu_commit_if.ready;
assign commit_is_if.lsu_valid = lsu_commit_if.valid && lsu_commit_if.ready;
assign commit_is_if.csr_valid = csr_commit_if.valid && csr_commit_if.ready;
assign commit_is_if.mul_valid = mul_commit_if.valid && mul_commit_if.ready;
assign commit_is_if.fpu_valid = fpu_commit_if.valid && fpu_commit_if.ready;
assign commit_is_if.gpu_valid = gpu_commit_if.valid && gpu_commit_if.ready;
assign commit_is_if.alu_tag = alu_commit_if.issue_tag;
assign commit_is_if.lsu_tag = lsu_commit_if.issue_tag;
assign commit_is_if.csr_tag = csr_commit_if.issue_tag;
assign commit_is_if.mul_tag = mul_commit_if.issue_tag;
assign commit_is_if.fpu_tag = fpu_commit_if.issue_tag;
assign commit_is_if.gpu_tag = gpu_commit_if.issue_tag;
assign gpu_commit_if.ready = 1'b1; // doesn't writeback
VX_writeback #(
@@ -67,30 +82,31 @@ module VX_commit #(
.lsu_commit_if (lsu_commit_if),
.csr_commit_if (csr_commit_if),
.mul_commit_if (mul_commit_if),
.fpu_commit_if (fpu_commit_if),
.fpu_commit_if (fpu_commit_if),
.commit_is_if (commit_is_if),
.writeback_if (writeback_if)
);
);
`ifdef DBG_PRINT_PIPELINE
always @(posedge clk) begin
if ((| alu_commit_if.valid) && alu_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=ALU, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, alu_commit_if.warp_num, alu_commit_if.curr_PC, alu_commit_if.wb, alu_commit_if.rd, alu_commit_if.data);
if (alu_commit_if.valid && alu_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=ALU, istag=%0d, tmask=%b, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, commit_is_if.alu_data.warp_num, commit_is_if.alu_data.curr_PC, alu_commit_if.issue_tag, commit_is_if.alu_data.thread_mask, commit_is_if.alu_data.wb, commit_is_if.alu_data.rd, alu_commit_if.data);
end
if ((| lsu_commit_if.valid) && lsu_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=LSU, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, lsu_commit_if.warp_num, lsu_commit_if.curr_PC, lsu_commit_if.wb, lsu_commit_if.rd, lsu_commit_if.data);
if (lsu_commit_if.valid && lsu_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=LSU, istag=%0d, tmask=%b, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, commit_is_if.lsu_data.warp_num, commit_is_if.lsu_data.curr_PC, lsu_commit_if.issue_tag, commit_is_if.lsu_data.thread_mask, commit_is_if.lsu_data.wb, commit_is_if.lsu_data.rd, lsu_commit_if.data);
end
if ((| csr_commit_if.valid) && csr_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=CSR, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, csr_commit_if.warp_num, csr_commit_if.curr_PC, csr_commit_if.wb, csr_commit_if.rd, csr_commit_if.data);
if (csr_commit_if.valid && csr_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=CSR, istag=%0d, tmask=%b, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, commit_is_if.csr_data.warp_num, commit_is_if.csr_data.curr_PC, csr_commit_if.issue_tag, commit_is_if.csr_data.thread_mask, commit_is_if.csr_data.wb, commit_is_if.csr_data.rd, csr_commit_if.data);
end
if ((| mul_commit_if.valid) && mul_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=MUL, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, mul_commit_if.warp_num, mul_commit_if.curr_PC, mul_commit_if.wb, mul_commit_if.rd, mul_commit_if.data);
if (mul_commit_if.valid && mul_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=MUL, istag=%0d, tmask=%b, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, commit_is_if.mul_data.warp_num, commit_is_if.mul_data.curr_PC, mul_commit_if.issue_tag, commit_is_if.mul_data.thread_mask, commit_is_if.mul_data.wb, commit_is_if.mul_data.rd, mul_commit_if.data);
end
if ((| fpu_commit_if.valid) && fpu_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=FPU, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, fpu_commit_if.warp_num, fpu_commit_if.curr_PC, fpu_commit_if.wb, fpu_commit_if.rd, fpu_commit_if.data);
if (fpu_commit_if.valid && fpu_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=FPU, istag=%0d, tmask=%b, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, commit_is_if.fpu_data.warp_num, commit_is_if.fpu_data.curr_PC, fpu_commit_if.issue_tag, commit_is_if.fpu_data.thread_mask, commit_is_if.fpu_data.wb, commit_is_if.fpu_data.rd, fpu_commit_if.data);
end
if ((| gpu_commit_if.valid) && gpu_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=GPU, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, gpu_commit_if.warp_num, gpu_commit_if.curr_PC, gpu_commit_if.wb, gpu_commit_if.rd, gpu_commit_if.data);
if (gpu_commit_if.valid && gpu_commit_if.ready) begin
$display("%t: Core%0d-commit: warp=%0d, PC=%0h, ex=GPU, istag=%0d, tmask=%b, wb=%0d, rd=%0d, data=%0h", $time, CORE_ID, commit_is_if.gpu_data.warp_num, commit_is_if.gpu_data.curr_PC, gpu_commit_if.issue_tag, commit_is_if.gpu_data.thread_mask, commit_is_if.gpu_data.wb, commit_is_if.gpu_data.rd, gpu_commit_if.data);
end
end
`endif