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Blaise Tine
2021-06-25 16:28:10 -07:00
parent 7e0dc81cee
commit 1ea738ed26
14 changed files with 257 additions and 538 deletions
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21
hw/rtl/libs/VX_rr_arbiter.v
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@@ -14,8 +14,6 @@ module VX_rr_arbiter #(
output wire grant_valid
);
localparam NN = NUM_REQS * NUM_REQS;
if (NUM_REQS == 1) begin
`UNUSED_VAR (clk)
@@ -399,17 +397,14 @@ module VX_rr_arbiter #(
always @(*) begin
grant_index_r = 'x;
grant_onehot_r = 'x;
for (integer i = 0; i < NN; ++i) begin
/* verilator lint_off UNUSED */
integer src = i / NUM_REQS;
integer dst = i % NUM_REQS;
integer next = (dst + 1) % NUM_REQS;
/* verilator lint_on UNUSED */
if (state == LOG_NUM_REQS'(src )
&& requests[next]) begin
grant_index_r = LOG_NUM_REQS'(next);
grant_onehot_r = '0;
grant_onehot_r[next] = 1;
for (integer i = 0; i < NUM_REQS; ++i) begin
for (integer j = 0; j < NUM_REQS; ++j) begin
if (state == LOG_NUM_REQS'(i)
&& requests[(j + 1) % NUM_REQS]) begin
grant_index_r = LOG_NUM_REQS'((j + 1) % NUM_REQS);
grant_onehot_r = '0;
grant_onehot_r[(j + 1) % NUM_REQS] = 1;
end
end
end
end