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fixed instr/cycle perf counter

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This commit is contained in:
Blaise Tine
2020-11-12 11:41:25 -08:00
parent fceb561cbd
commit 2e0f51af80
8 changed files with 81 additions and 80 deletions
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65
hw/rtl/VX_commit.v
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@@ -18,35 +18,38 @@ module VX_commit #(
VX_writeback_if writeback_if,
VX_cmt_to_csr_if cmt_to_csr_if
);
localparam NCMTW = $clog2(`NUM_EXS*`NUM_THREADS+1);
localparam CMTW = $clog2(`NUM_THREADS+1);
// CSRs update
wire [`NUM_EXS-1-1:0] exu_committed;
wire [`NUM_THREADS-1:0] lsu_committed;
wire [$clog2(`NUM_EXS-1+1)-1:0] exu_commits;
wire [$clog2(`NUM_THREADS+1)-1:0] lsu_commits;
wire alu_commit_fire = alu_commit_if.valid && alu_commit_if.ready;
wire lsu_commit_fire = lsu_commit_if.valid && lsu_commit_if.ready;
wire csr_commit_fire = csr_commit_if.valid && csr_commit_if.ready;
wire mul_commit_fire = mul_commit_if.valid && mul_commit_if.ready;
wire fpu_commit_fire = fpu_commit_if.valid && fpu_commit_if.ready;
wire gpu_commit_fire = gpu_commit_if.valid && gpu_commit_if.ready;
assign exu_committed = {alu_commit_if.valid,
csr_commit_if.valid,
mul_commit_if.valid,
fpu_commit_if.valid,
gpu_commit_if.valid};
wire commit_fire = alu_commit_fire
|| lsu_commit_fire
|| csr_commit_fire
|| mul_commit_fire
|| fpu_commit_fire
|| gpu_commit_fire;
assign lsu_committed = {`NUM_THREADS{lsu_commit_if.valid}} & lsu_commit_if.tmask;
wire [`NUM_THREADS-1:0] commit_tmask = alu_commit_fire ? alu_commit_if.tmask:
lsu_commit_fire ? lsu_commit_if.tmask:
csr_commit_fire ? csr_commit_if.tmask:
mul_commit_fire ? mul_commit_if.tmask:
fpu_commit_fire ? fpu_commit_if.tmask:
gpu_commit_if.tmask;
VX_countones #(
.N(`NUM_EXS-1)
) exu_counter (
.valids(exu_committed),
.count (exu_commits)
);
wire [CMTW-1:0] commit_size;
VX_countones #(
.N(`NUM_THREADS)
) lsu_counter (
.valids(lsu_committed),
.count (lsu_commits)
) commit_ctr (
.valids(commit_tmask),
.count (commit_size)
);
fflags_t fflags;
@@ -63,25 +66,23 @@ module VX_commit #(
end
end
fflags_t fflags_r;
reg has_fflags_r;
reg [`NW_BITS-1:0] wid_r;
reg [$clog2(`NUM_EXS-1+1)-1:0] exu_cmt_r;
reg [$clog2(`NUM_THREADS+1)-1:0] lsu_cmt_r;
reg csr_update_r;
reg [`NW_BITS-1:0] wid_r;
reg [CMTW-1:0] commit_size_r;
reg has_fflags_r;
fflags_t fflags_r;
always @(posedge clk) begin
csr_update_r <= (| exu_committed) | lsu_commit_if.valid;
fflags_r <= fflags;
has_fflags_r <= fpu_commit_if.valid && fpu_commit_if.has_fflags;
wid_r <= fpu_commit_if.wid;
exu_cmt_r <= exu_commits;
lsu_cmt_r <= lsu_commits;
csr_update_r <= commit_fire;
wid_r <= fpu_commit_if.wid;
commit_size_r <= commit_size;
has_fflags_r <= fpu_commit_if.has_fflags;
fflags_r <= fflags;
end
assign cmt_to_csr_if.valid = csr_update_r;
assign cmt_to_csr_if.wid = wid_r;
assign cmt_to_csr_if.num_commits = {exu_cmt_r, `NT_BITS'(0)} + NCMTW'(lsu_cmt_r);
assign cmt_to_csr_if.commit_size = commit_size_r;
assign cmt_to_csr_if.has_fflags = has_fflags_r;
assign cmt_to_csr_if.fflags = fflags_r;