From fb01dc8a90d5a99f132830b9ba3a8db29319ef4c Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 25 Sep 2019 16:50:24 +1000 Subject: [PATCH] icache: Reformat icache No code change Signed-off-by: Benjamin Herrenschmidt --- icache.vhdl | 54 ++++++++++++++++++++++++++--------------------------- 1 file changed, 27 insertions(+), 27 deletions(-) diff --git a/icache.vhdl b/icache.vhdl index 2565219..eddcdea 100644 --- a/icache.vhdl +++ b/icache.vhdl @@ -140,33 +140,33 @@ begin r.w.we <= '0'; case r.state is - when IDLE => - if read_miss = true then - r.state <= WAIT_ACK; - r.store_word <= 0; - r.store_index <= read_index; - - tags(read_index) <= read_tag; - tags_valid(read_index) <= '0'; - - r.w.adr <= i_in.addr(63 downto OFFSET_BITS) & (OFFSET_BITS-1 downto 0 => '0'); - r.w.cyc <= '1'; - r.w.stb <= '1'; - end if; - when WAIT_ACK => - if wishbone_in.ack = '1' then - cachelines(r.store_index)((r.store_word+1)*64-1 downto ((r.store_word)*64)) <= wishbone_in.dat; - r.store_word <= r.store_word + 1; - - if r.store_word = (LINE_SIZE_DW-1) then - r.state <= IDLE; - tags_valid(r.store_index) <= '1'; - r.w.cyc <= '0'; - r.w.stb <= '0'; - else - r.w.adr(OFFSET_BITS-1 downto 3) <= std_ulogic_vector(to_unsigned(r.store_word+1, OFFSET_BITS-3)); - end if; - end if; + when IDLE => + if read_miss = true then + r.state <= WAIT_ACK; + r.store_word <= 0; + r.store_index <= read_index; + + tags(read_index) <= read_tag; + tags_valid(read_index) <= '0'; + + r.w.adr <= i_in.addr(63 downto OFFSET_BITS) & (OFFSET_BITS-1 downto 0 => '0'); + r.w.cyc <= '1'; + r.w.stb <= '1'; + end if; + when WAIT_ACK => + if wishbone_in.ack = '1' then + cachelines(r.store_index)((r.store_word+1)*64-1 downto ((r.store_word)*64)) <= wishbone_in.dat; + r.store_word <= r.store_word + 1; + + if r.store_word = (LINE_SIZE_DW-1) then + r.state <= IDLE; + tags_valid(r.store_index) <= '1'; + r.w.cyc <= '0'; + r.w.stb <= '0'; + else + r.w.adr(OFFSET_BITS-1 downto 3) <= std_ulogic_vector(to_unsigned(r.store_word+1, OFFSET_BITS-3)); + end if; + end if; end case; end if; end process; -- 2.30.2