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store queue fowarding simplification

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Eric Matthews 2021-12-02 11:26:14 -08:00
parent 643f666a8b
commit 96c4d1ea35
1 changed files with 10 additions and 8 deletions
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18
core/store_queue.sv
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@ -69,6 +69,9 @@ module store_queue
localparam LOG2_DEPTH = $clog2(DEPTH);
typedef logic [LOG2_MAX_IDS-1:0] load_check_count_t;
wb_packet_t wb_snoop_r;
//Register-based memory blocks
logic [DEPTH-1:0] valid;
logic [DEPTH-1:0] valid_next;
@ -201,12 +204,6 @@ module store_queue
id_needed[sq_index] <= lsq.data_id;
end
always_comb begin
for (int i = 0; i < DEPTH; i++) begin
wb_id_match[i] = (wb_snoop.id == id_needed[i]);
end
end
////////////////////////////////////////////////////
//Release Handling
logic [DEPTH-1:0] newly_released;
@ -227,12 +224,17 @@ module store_queue
////////////////////////////////////////////////////
//Store Data
always_ff @ (posedge clk) begin
wb_snoop_r <= wb_snoop;
end
always_ff @ (posedge clk) begin
for (int i = 0; i < DEPTH; i++) begin
if ((wb_id_match[i] | new_request_one_hot[i]) & wb_snoop.valid & (~released[i] | new_request_one_hot[i]))
store_data_from_wb[i] <= wb_snoop.data;
if ({1'b0, wb_snoop_r.valid, wb_snoop_r.id} == {released[i], 1'b1, id_needed[i]})
store_data_from_wb[i] <= wb_snoop_r.data;
end
end
always_ff @ (posedge clk) begin
if (new_sq_request & ~lsq.forwarded_store)
store_data_from_issue[sq_index] <= lsq.data_in;