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l1arb cleanup

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Eric Matthews 2020-06-30 11:04:00 -07:00
parent ea035d0e2a
commit 28b11c365d
1 changed files with 8 additions and 18 deletions
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26
core/l1_arbiter.sv
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@ -1,5 +1,5 @@
/*
* Copyright © 2017-2019 Eric Matthews, Lesley Shannon
* Copyright © 2017-2020 Eric Matthews, Lesley Shannon
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -71,21 +71,21 @@ module l1_arbiter
//arbiter can pop address FIFO at a different rate than the data FIFO, so check that both have space.
assign push_ready = ~l2.request_full & ~l2.data_full;
assign request_exists = |requests;
assign l2.request_push = push_ready & request_exists;
//priority 0-to-n
logic busy;
always_comb begin
request_exists = l1_request[0].request;
acks[0] = l1_request[0].request & push_ready;
acks[0] = l1_request[0].request & push_ready;//L1_DCACHE_ID
busy = l1_request[0].request;
for (int i=1; i <L1_CONNECTIONS; i++) begin
request_exists |= requests[i];
for (int i = 1; i < L1_CONNECTIONS; i++) begin
acks[i] = requests[i] & push_ready & ~busy;
busy |= requests[i];
end
end
assign l2.request_push = push_ready & request_exists;
generate
if (USE_DCACHE) begin
@ -150,24 +150,16 @@ module l1_arbiter
endgenerate
// generate
// for (i=1; i <L1_CONNECTIONS; i++) begin
// assign l2_requests[i] = l1_request[i].to_l2(i);
// end
// endgenerate
always_comb begin
//l2.request = l2_requests[L1_CONNECTIONS-1];
l2.addr = l2_requests[L1_CONNECTIONS-1].addr;
l2.rnw = l2_requests[L1_CONNECTIONS-1].rnw;
l2.be = l2_requests[L1_CONNECTIONS-1].be;
l2.is_amo = l2_requests[L1_CONNECTIONS-1].is_amo;
l2.amo_type_or_burst_size = l2_requests[L1_CONNECTIONS-1].amo_type_or_burst_size;
l2.sub_id = l2_requests[L1_CONNECTIONS-1].sub_id;
for (int i = L1_CONNECTIONS-2; i >=0; i--) begin
for (int i = L1_CONNECTIONS-2; i >= 0; i--) begin
if (requests[i]) begin
//l2.request = l2_requests[i];
l2.addr = l2_requests[i].addr;
l2.addr = l2_requests[i].addr;
l2.rnw = l2_requests[i].rnw;
l2.be = l2_requests[i].be;
l2.is_amo = l2_requests[i].is_amo;
@ -184,7 +176,5 @@ module l1_arbiter
end
endgenerate
endmodule