riscv/rocket-chip
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fix probe tag read-modify-write atomicity violation

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This commit is contained in:
Andrew Waterman 2012-04-24 00:59:37 -07:00
parent 66f86a2194
commit c13d3e6f88
1 changed files with 1 additions and 1 deletions
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rocket/src/main/scala/nbdcache.scala
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@ -277,7 +277,7 @@ class MSHR(id: Int, co: CoherencePolicy) extends Component {
io.wb_req.bits.way_oh := req.way_oh io.wb_req.bits.way_oh := req.way_oh
io.wb_req.bits.tile_xact_id := Bits(id) io.wb_req.bits.tile_xact_id := Bits(id)
io.probe_writeback.ready := (state != s_wb_resp && state != s_meta_clear) || !idx_match io.probe_writeback.ready := (state != s_wb_resp && state != s_meta_clear && state != s_drain_rpq) || !idx_match
io.probe_refill.ready := (state != s_refill_resp && state != s_drain_rpq) || !idx_match io.probe_refill.ready := (state != s_refill_resp && state != s_drain_rpq) || !idx_match
io.mem_req.valid := (state === s_refill_req) && !flush io.mem_req.valid := (state === s_refill_req) && !flush