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Fix unhandled LLC writeback hazard

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This commit is contained in:
Andrew Waterman 2014-06-13 03:25:52 -07:00
parent 3c329df7e7
commit 1ae7a9376c
1 changed files with 2 additions and 1 deletions
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3
uncore/src/main/scala/llc.scala
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@ -438,10 +438,11 @@ class DRAMSideLLC(sets: Int, ways: Int, outstanding: Int, refill_cycles: Int, ta
replay_s2_rdy := s3_rdy && !tag_we replay_s2_rdy := s3_rdy && !tag_we
io.cpu.resp <> data.io.resp io.cpu.resp <> data.io.resp
io.cpu.req_cmd.ready := !s1_valid && !s2_valid && !replay_s2 && !tag_we
io.cpu.req_data.ready := writeback.io.data(1).ready || data.io.req_data.ready io.cpu.req_data.ready := writeback.io.data(1).ready || data.io.req_data.ready
io.mem.req_cmd <> memCmdArb.io.out io.mem.req_cmd <> memCmdArb.io.out
io.mem.req_data <> writeback.io.mem.req_data io.mem.req_data <> writeback.io.mem.req_data
io.cpu.req_cmd.ready := !(s1_valid || s2_valid || replay_s2 || tag_we ||
io.cpu.req_cmd.bits.rw && io.cpu.req_data.ready)
} }
class HellaFlowQueue[T <: Data](val entries: Int)(data: => T) extends Module class HellaFlowQueue[T <: Data](val entries: Int)(data: => T) extends Module