From 257747a3a149f3f90d9645ab3a2cd3b5ca10b09e Mon Sep 17 00:00:00 2001 From: Andrew Waterman Date: Mon, 26 Mar 2012 23:50:09 -0700 Subject: [PATCH] no dessert tonight :( --- uncore/memserdes.scala | 46 +++++++++++++++++++++--------------------- 1 file changed, 23 insertions(+), 23 deletions(-) diff --git a/uncore/memserdes.scala b/uncore/memserdes.scala index c1d1fccb..27bbaa95 100644 --- a/uncore/memserdes.scala +++ b/uncore/memserdes.scala @@ -5,17 +5,17 @@ import Node._ import Constants._ import scala.math._ -class ioMemSerialized(w: Int) extends Bundle +class ioMemSerialized extends Bundle { - val req = (new ioDecoupled) { Bits(width = w) } - val resp = (new ioPipe) { Bits(width = w) }.flip + val req = (new ioDecoupled) { Bits(width = MEM_BACKUP_WIDTH) } + val resp = (new ioPipe) { Bits(width = MEM_BACKUP_WIDTH) }.flip } -class MemSerdes(w: Int) extends Component +class MemSerdes extends Component { val io = new Bundle { val wide = new ioMem().flip - val narrow = new ioMemSerialized(w) + val narrow = new ioMemSerialized } val abits = io.wide.req_cmd.bits.toBits.getWidth val dbits = io.wide.req_data.bits.toBits.getWidth @@ -26,14 +26,14 @@ class MemSerdes(w: Int) extends Component val s_idle :: s_read_addr :: s_write_addr :: s_write_idle :: s_write_data :: Nil = Enum(5) { UFix() } val state = Reg(resetVal = s_idle) - val send_cnt = Reg(resetVal = UFix(0, log2up((max(abits, dbits)+w-1)/w))) + val send_cnt = Reg(resetVal = UFix(0, log2up((max(abits, dbits)+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH))) val data_send_cnt = Reg(resetVal = UFix(0, log2up(REFILL_CYCLES))) - val adone = io.narrow.req.ready && send_cnt === UFix((abits-1)/w) - val ddone = io.narrow.req.ready && send_cnt === UFix((dbits-1)/w) + val adone = io.narrow.req.ready && send_cnt === UFix((abits-1)/MEM_BACKUP_WIDTH) + val ddone = io.narrow.req.ready && send_cnt === UFix((dbits-1)/MEM_BACKUP_WIDTH) when (io.narrow.req.valid && io.narrow.req.ready) { send_cnt := send_cnt + UFix(1) - out_buf := out_buf >> UFix(w) + out_buf := out_buf >> UFix(MEM_BACKUP_WIDTH) } when (io.wide.req_cmd.valid && io.wide.req_cmd.ready) { out_buf := io.wide.req_cmd.bits.toBits @@ -67,19 +67,19 @@ class MemSerdes(w: Int) extends Component send_cnt := UFix(0) } - val recv_cnt = Reg(resetVal = UFix(0, log2up((rbits+w-1)/w))) + val recv_cnt = Reg(resetVal = UFix(0, log2up((rbits+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH))) val data_recv_cnt = Reg(resetVal = UFix(0, log2up(REFILL_CYCLES))) val resp_val = Reg(resetVal = Bool(false)) resp_val := Bool(false) when (io.narrow.resp.valid) { recv_cnt := recv_cnt + UFix(1) - when (recv_cnt === UFix((rbits-1)/w)) { + when (recv_cnt === UFix((rbits-1)/MEM_BACKUP_WIDTH)) { recv_cnt := UFix(0) data_recv_cnt := data_recv_cnt + UFix(1) resp_val := Bool(true) } - in_buf := Cat(io.narrow.resp.bits, in_buf((rbits+w-1)/w*w-1,w)) + in_buf := Cat(io.narrow.resp.bits, in_buf((rbits+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH*MEM_BACKUP_WIDTH-1,MEM_BACKUP_WIDTH)) } io.wide.resp.valid := resp_val @@ -87,10 +87,10 @@ class MemSerdes(w: Int) extends Component io.wide.resp.bits.data := in_buf >> UFix(io.wide.resp.bits.tag.width) } -class MemDessert(w: Int) extends Component // test rig side +class MemDessert extends Component // test rig side { val io = new Bundle { - val narrow = new ioMemSerialized(w).flip + val narrow = new ioMemSerialized().flip val wide = new ioMem } val abits = io.wide.req_cmd.bits.toBits.getWidth @@ -98,11 +98,11 @@ class MemDessert(w: Int) extends Component // test rig side val rbits = io.wide.resp.bits.getWidth require(dbits >= abits && rbits >= dbits) - val recv_cnt = Reg(resetVal = UFix(0, log2up((rbits+w-1)/w))) + val recv_cnt = Reg(resetVal = UFix(0, log2up((rbits+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH))) val data_recv_cnt = Reg(resetVal = UFix(0, log2up(REFILL_CYCLES))) - val adone = io.narrow.req.valid && recv_cnt === UFix((abits-1)/w) - val ddone = io.narrow.req.valid && recv_cnt === UFix((dbits-1)/w) - val rdone = io.narrow.resp.valid && recv_cnt === UFix((rbits-1)/w) + val adone = io.narrow.req.valid && recv_cnt === UFix((abits-1)/MEM_BACKUP_WIDTH) + val ddone = io.narrow.req.valid && recv_cnt === UFix((dbits-1)/MEM_BACKUP_WIDTH) + val rdone = io.narrow.resp.valid && recv_cnt === UFix((rbits-1)/MEM_BACKUP_WIDTH) val s_cmd_recv :: s_cmd :: s_data_recv :: s_data :: s_reply :: Nil = Enum(5) { UFix() } val state = Reg(resetVal = s_cmd_recv) @@ -110,7 +110,7 @@ class MemDessert(w: Int) extends Component // test rig side val in_buf = Reg() { Bits() } when (io.narrow.req.valid && io.narrow.req.ready || io.narrow.resp.valid) { recv_cnt := recv_cnt + UFix(1) - in_buf := Cat(io.narrow.req.bits, in_buf((rbits+w-1)/w*w-1,w)) + in_buf := Cat(io.narrow.req.bits, in_buf((rbits+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH*MEM_BACKUP_WIDTH-1,MEM_BACKUP_WIDTH)) } io.narrow.req.ready := state === s_cmd_recv || state === s_data_recv @@ -140,19 +140,19 @@ class MemDessert(w: Int) extends Component // test rig side data_recv_cnt := data_recv_cnt + UFix(1) } - val req_cmd = in_buf >> UFix(((rbits+w-1)/w - (abits+w-1)/w)*w) + val req_cmd = in_buf >> UFix(((rbits+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH - (abits+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH)*MEM_BACKUP_WIDTH) io.wide.req_cmd.valid := state === s_cmd io.wide.req_cmd.bits.tag := req_cmd io.wide.req_cmd.bits.addr := req_cmd.toUFix >> UFix(io.wide.req_cmd.bits.tag.width) io.wide.req_cmd.bits.rw := req_cmd(io.wide.req_cmd.bits.tag.width + io.wide.req_cmd.bits.addr.width) io.wide.req_data.valid := state === s_data - io.wide.req_data.bits.data := in_buf >> UFix(((rbits+w-1)/w - (dbits+w-1)/w)*w) + io.wide.req_data.bits.data := in_buf >> UFix(((rbits+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH - (dbits+MEM_BACKUP_WIDTH-1)/MEM_BACKUP_WIDTH)*MEM_BACKUP_WIDTH) val dataq = (new queue(REFILL_CYCLES)) { new MemResp } dataq.io.enq <> io.wide.resp - dataq.io.deq.ready := recv_cnt === UFix((rbits-1)/w) + dataq.io.deq.ready := recv_cnt === UFix((rbits-1)/MEM_BACKUP_WIDTH) io.narrow.resp.valid := dataq.io.deq.valid - io.narrow.resp.bits := dataq.io.deq.bits.toBits >> (recv_cnt * UFix(w)) + io.narrow.resp.bits := dataq.io.deq.bits.toBits >> (recv_cnt * UFix(MEM_BACKUP_WIDTH)) }