diff options
Diffstat (limited to 'rtl/cache')
| -rw-r--r-- | rtl/cache/cache_control.sv | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/rtl/cache/cache_control.sv b/rtl/cache/cache_control.sv index 73eb644..e4c2148 100644 --- a/rtl/cache/cache_control.sv +++ b/rtl/cache/cache_control.sv @@ -55,7 +55,7 @@ module cache_control REPLY } state, next_state; - logic accept_snoop, in_hold_valid, inval_reply, last_hop, lock_line, locked, + logic accept_snoop, end_reply, in_hold_valid, last_hop, lock_line, locked, may_send, may_send_if_token_held, mem_begin, mem_end, mem_read_end, mem_wait, out_stall, wait_reply, replace, retry, send, send_inval, send_read, snoop_hit, set_reply, unlock_line, writeback; @@ -116,8 +116,8 @@ module cache_control send_read = 0; send_inval = 0; + end_reply = 0; set_reply = 0; - inval_reply = 0; core_waitrequest = 1; in_data_ready = !in_hold_valid; @@ -125,10 +125,13 @@ module cache_control unique case (state) ACCEPT: begin if (last_hop && !in_hold.read) begin - inval_reply = in_hold_valid; + end_reply = in_hold_valid; in_data_ready = 1; end + if (!last_hop && in_hold.reply) + in_data_ready = 1; + if (accept_snoop) index_rd = in_hold.index; end @@ -228,9 +231,11 @@ module cache_control if (in_hold.reply) begin data_wr = in_hold.data; - state_wr = SHARED; + state_wr = in_hold.inval ? EXCLUSIVE : SHARED; write_data = 1; write_state = 1; + + end_reply = 1; end else mem_begin = 1; end @@ -342,7 +347,7 @@ module cache_control if (send) wait_reply <= 1; - if (inval_reply || mem_read_end) + if (end_reply || mem_read_end) wait_reply <= 0; if (mem_end) begin |