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

git rid of reorder queue in narrower

Browse Source
This commit is contained in:
Howard Mao
2016-03-21 22:59:55 -07:00
parent c6e974b110
commit 00b3908d92
1 changed files with 6 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
uncore/src/main/scala/converters.scala
View File

@@ -884,9 +884,6 @@ class TileLinkIONarrower(innerTLId: String, outerTLId: String)
val acq_addr_beat = Reg(iacq.addr_beat) val acq_addr_beat = Reg(iacq.addr_beat)
val oacq_ctr = Counter(factor) val oacq_ctr = Counter(factor)
// this part of the address shifts from the inner byte address
// to the outer beat address
val readshift = iacq.full_addr()(innerByteAddrBits - 1, outerByteAddrBits)
val outer_beat_addr = iacq.full_addr()(outerBlockOffset - 1, outerByteAddrBits) val outer_beat_addr = iacq.full_addr()(outerBlockOffset - 1, outerByteAddrBits)
val outer_byte_addr = iacq.full_addr()(outerByteAddrBits - 1, 0) val outer_byte_addr = iacq.full_addr()(outerByteAddrBits - 1, 0)
@@ -958,32 +955,15 @@ class TileLinkIONarrower(innerTLId: String, outerTLId: String)
val sending_put = Reg(init = Bool(false)) val sending_put = Reg(init = Bool(false))
val pass_valid = io.in.acquire.valid && !stretch && !smallget val pass_valid = io.in.acquire.valid && !stretch
val smallget_valid = smallget && io.in.acquire.valid
val smallget_roq = Module(new ReorderQueue(
readshift, outerIdBits, outerMaxClients))
val smallget_helper = DecoupledHelper(
smallget_valid,
smallget_roq.io.enq.ready,
io.out.acquire.ready)
smallget_roq.io.enq.valid := smallget_helper.fire(
smallget_roq.io.enq.ready, !sending_put)
smallget_roq.io.enq.bits.data := readshift
smallget_roq.io.enq.bits.tag := iacq.client_xact_id
io.out.acquire.bits := MuxBundle(Wire(io.out.acquire.bits, init=iacq), Seq( io.out.acquire.bits := MuxBundle(Wire(io.out.acquire.bits, init=iacq), Seq(
(sending_put, put_block_acquire), (sending_put, put_block_acquire),
(shrink, get_block_acquire), (shrink, get_block_acquire),
(smallput, put_acquire), (smallput, put_acquire),
(smallget, get_acquire))) (smallget, get_acquire)))
io.out.acquire.valid := sending_put || pass_valid || io.out.acquire.valid := sending_put || pass_valid
smallget_helper.fire(io.out.acquire.ready) io.in.acquire.ready := !sending_put && (stretch || io.out.acquire.ready)
io.in.acquire.ready := !sending_put && (stretch ||
(!smallget && io.out.acquire.ready) ||
smallget_helper.fire(smallget_valid))
when (io.in.acquire.fire() && stretch) { when (io.in.acquire.fire() && stretch) {
acq_data_buffer := iacq.data acq_data_buffer := iacq.data
@@ -1018,11 +998,9 @@ class TileLinkIONarrower(innerTLId: String, outerTLId: String)
data = gnt_data_buffer.toBits)(innerConfig) data = gnt_data_buffer.toBits)(innerConfig)
val smallget_grant = ognt.g_type === Grant.getDataBeatType val smallget_grant = ognt.g_type === Grant.getDataBeatType
val get_grant_shift = Cat(smallget_roq.io.deq.data, val get_grant_align = io.out.grant.bits.addr_beat(
UInt(0, outerByteAddrBits + 3)) innerByteAddrBits - outerByteAddrBits - 1, 0)
val get_grant_shift = Cat(get_grant_align, UInt(0, outerByteAddrBits + 3))
smallget_roq.io.deq.valid := io.out.grant.fire() && smallget_grant
smallget_roq.io.deq.tag := ognt.client_xact_id
val get_grant = Grant( val get_grant = Grant(
is_builtin_type = Bool(true), is_builtin_type = Bool(true),