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cache bank select optimization

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This commit is contained in:
Blaise Tine
2021-07-15 11:42:17 -07:00
parent 7d01be367c
commit f57fa82028
1 changed files with 16 additions and 31 deletions
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47
hw/rtl/cache/VX_core_req_bank_sel.v vendored
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@@ -230,37 +230,26 @@ module VX_core_req_bank_sel #(
if (SHARED_BANK_READY == 0) begin
always @(*) begin
core_req_ready_r = 0;
for (integer j = 0; j < NUM_BANKS; ++j) begin
for (integer i = 0; i < NUM_REQS; ++i) begin
if (core_req_valid[i] && (core_req_bid[i] == `BANK_SELECT_BITS'(j))) begin
core_req_ready_r[i] = per_bank_core_req_ready[j];
break;
end
end
for (integer i = 0; i < NUM_BANKS; ++i) begin
if (per_bank_core_req_valid_r[i]) begin
core_req_ready_r[per_bank_core_req_tid_r[i]] = per_bank_core_req_ready[i];
end
end
end
end else begin
always @(*) begin
core_req_ready_r = 0;
for (integer j = 0; j < NUM_BANKS; ++j) begin
for (integer i = 0; i < NUM_REQS; ++i) begin
if (core_req_valid[i] && (core_req_bid[i] == `BANK_SELECT_BITS'(j))) begin
core_req_ready_r[i] = per_bank_core_req_ready;
break;
end
end
for (integer i = 0; i < NUM_BANKS; ++i) begin
if (per_bank_core_req_valid_r[i]) begin
core_req_ready_r[per_bank_core_req_tid_r[i]] = per_bank_core_req_ready;
end
end
end
end
end else begin
always @(*) begin
core_req_ready_r = 0;
for (integer i = 0; i < NUM_REQS; ++i) begin
if (core_req_valid[i]) begin
core_req_ready_r[i] = per_bank_core_req_ready;
break;
end
end
core_req_ready_r = 0;
core_req_ready_r[per_bank_core_req_tid_r[0]] = per_bank_core_req_ready;
end
end
end
@@ -320,22 +309,18 @@ module VX_core_req_bank_sel #(
if (SHARED_BANK_READY == 0) begin
always @(*) begin
core_req_sel_r = 0;
for (integer j = 0; j < NUM_BANKS; ++j) begin
for (integer i = 0; i < NUM_REQS; ++i) begin
if (core_req_valid[i] && (core_req_bid[i] == `UP(`BANK_SELECT_BITS)'(j))) begin
core_req_sel_r[i] = per_bank_core_req_ready[j];
end
for (integer i = 0; i < NUM_REQS; ++i) begin
if (core_req_valid[i]) begin
core_req_sel_r[i] = per_bank_core_req_ready[core_req_bid[i]];
end
end
end
end else begin
always @(*) begin
core_req_sel_r = 0;
for (integer j = 0; j < NUM_BANKS; ++j) begin
for (integer i = 0; i < NUM_REQS; ++i) begin
if (core_req_valid[i] && (core_req_bid[i] == `UP(`BANK_SELECT_BITS)'(j))) begin
core_req_sel_r[i] = per_bank_core_req_ready;
end
for (integer i = 0; i < NUM_REQS; ++i) begin
if (core_req_valid[i]) begin
core_req_sel_r[i] = per_bank_core_req_ready;
end
end
end