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🐛 Fix problem with I$ when axi.last is high

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Florian Zaruba 2018-04-22 19:18:20 +02:00
parent e4d8c2491b
commit ae174ca6c3
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1 changed files with 5 additions and 4 deletions
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9
src/icache.sv
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@ -25,6 +25,7 @@ module icache #(
input logic clk_i,
input logic rst_ni,
input logic flush_i, // flush the icache, flush and kill have to be asserted together
input logic fetch_enable_i, // the core should fetch instructions
input logic req_i, // we request a new word
input logic is_speculative_i, // is this request speculative or not
input logic kill_s1_i, // kill the current request
@ -237,9 +238,9 @@ module icache #(
case (state_q)
// ~> we are ready to receive a new request
IDLE: begin
ready_o = 1'b1;
ready_o = 1'b1 & fetch_enable_i;
// we are getting a new request
if (req_i) begin
if (req_i && fetch_enable_i) begin
// request the content of all arrays
req = '1;
// save the virtual address
@ -356,11 +357,11 @@ module icache #(
if (kill_s2_i)
state_d = WAIT_KILLED_AXI_R_RESP;
if (axi.r_last) begin
if (axi.r_valid && axi.r_last) begin
state_d = (kill_s2_i) ? IDLE : REDO_REQ;
end
if ((state_q == WAIT_KILLED_AXI_R_RESP) && axi.r_last)
if ((state_q == WAIT_KILLED_AXI_R_RESP) && axi.r_last && axi.r_valid)
state_d = IDLE;
end
// ~> redo the request,