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writeback cache fixes

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Blaise Tine 2024-07-30 22:14:06 -07:00
parent 95ca49a85f
commit 2e77c9eec2
1 changed files with 6 additions and 1 deletions
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7
hw/rtl/cache/VX_cache_flush.sv vendored
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@ -118,17 +118,22 @@ module VX_cache_flush #(
STATE_WAIT: begin
if (no_inflight_reqs) begin
state_n = STATE_FLUSH;
flush_done_n = '0;
end
end
STATE_FLUSH: begin
// wait for all banks to finish flushing
flush_done_n = flush_done | flush_ready;
if (flush_done_n == {NUM_BANKS{1'b1}}) begin
state_n = STATE_DONE;
flush_done_n = '0;
// only release current flush requests
// and keep normal requests locked
lock_released_n = flush_req_mask;
end
end
STATE_DONE: begin
// wait until released flush requests are issued
// when returning to IDLE state other requests will unlock
lock_released_n = lock_released & ~core_bus_out_ready;
if (lock_released_n == 0) begin
state_n = STATE_IDLE;