riscv/rocket-chip
1
0
Fork 0
Code Releases Activity

Major tilelink revision for uncached message types

Browse Source
This commit is contained in:
Henry Cook 2014-11-11 17:36:48 -08:00
parent bf901e4bca
commit c9e7874818
2 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
rocket/src/main/scala/icache.scala
View File

@ -258,14 +258,14 @@ class ICache extends FrontendModule
io.resp.bits.datablock := Mux1H(s2_tag_hit, s2_dout)
val ack_q = Module(new Queue(new LogicalNetworkIO(new Finish), 1))
ack_q.io.enq.valid := refill_done && co.requiresAckForGrant(refill_bits.payload.g_type)
ack_q.io.enq.valid := refill_done && co.requiresAckForGrant(refill_bits.payload)
ack_q.io.enq.bits.payload.master_xact_id := refill_bits.payload.master_xact_id
ack_q.io.enq.bits.header.dst := refill_bits.header.src
// output signals
io.resp.valid := s2_hit
io.mem.acquire.valid := (state === s_request) && ack_q.io.enq.ready
io.mem.acquire.bits.payload := Acquire(co.getUncachedReadAcquireType, s2_addr >> UInt(blockOffBits), UInt(0))
io.mem.acquire.bits.payload := UncachedRead(s2_addr >> UInt(blockOffBits))
io.mem.finish <> ack_q.io.deq
// control state machine

6
rocket/src/main/scala/nbdcache.scala
View File

@ -254,7 +254,7 @@ class MSHR(id: Int) extends L1HellaCacheModule {
}
val ackq = Module(new Queue(new LogicalNetworkIO(new Finish), 1))
ackq.io.enq.valid := (wb_done || refill_done) && co.requiresAckForGrant(io.mem_grant.bits.payload.g_type)
ackq.io.enq.valid := (wb_done || refill_done) && co.requiresAckForGrant(io.mem_grant.bits.payload)
ackq.io.enq.bits.payload.master_xact_id := io.mem_grant.bits.payload.master_xact_id
ackq.io.enq.bits.header.dst := io.mem_grant.bits.header.src
val can_finish = state === s_invalid || state === s_refill_req || state === s_refill_resp
@ -288,9 +288,7 @@ class MSHR(id: Int) extends L1HellaCacheModule {
io.wb_req.bits.r_type := co.getReleaseTypeOnVoluntaryWriteback()
io.mem_req.valid := state === s_refill_req && ackq.io.enq.ready
io.mem_req.bits.a_type := acquire_type
io.mem_req.bits.addr := Cat(io.tag, req_idx).toUInt
io.mem_req.bits.client_xact_id := Bits(id)
io.mem_req.bits := Acquire(acquire_type, Cat(io.tag, req_idx).toUInt, Bits(id))
io.mem_finish <> ackq.io.deq
io.meta_read.valid := state === s_drain_rpq