riscv/rocket-chip
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hoist out uncore as its own component

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This commit is contained in:
Yunsup Lee 2012-07-22 17:48:17 -07:00
parent 0a97d6ab4d
commit c892950bf1
1 changed files with 48 additions and 22 deletions
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70
rocket/src/main/scala/top.scala
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@ -15,23 +15,32 @@ class ioTop(htif_width: Int) extends Bundle {
val mem = new ioMemPipe val mem = new ioMemPipe
} }
class Top extends Component class ioUncore(htif_width: Int, ntiles: Int) extends Bundle {
val debug = new ioDebug()
val host = new ioHost(htif_width)
val host_clk = Bool(OUTPUT)
val mem_backup = new ioMemSerialized
val mem_backup_en = Bool(INPUT)
val mem_backup_clk = Bool(OUTPUT)
val mem = new ioMemPipe
val tiles = Vec(ntiles) { new ioTileLink() }.flip
val htif = Vec(ntiles) { new ioHTIF() }.flip
}
class Uncore(htif_width: Int, ntiles: Int, co: CoherencePolicyWithUncached) extends Component
{ {
val clkdiv = 8 val clkdiv = 8
val htif_width = 8 val io = new ioUncore(htif_width, ntiles)
val io = new ioTop(htif_width)
val co = if(ENABLE_SHARING) {
if(ENABLE_CLEAN_EXCLUSIVE) new MESICoherence
else new MSICoherence
} else {
if(ENABLE_CLEAN_EXCLUSIVE) new MEICoherence
else new MICoherence
}
val htif = new rocketHTIF(htif_width, NTILES, co) val htif = new rocketHTIF(htif_width, NTILES, co)
val hub = new CoherenceHubBroadcast(NTILES+1, co) val hub = new CoherenceHubBroadcast(NTILES+1, co)
val llc_leaf = Mem(2048, seqRead = true) { Bits(width = 64) } val llc_leaf = Mem(2048, seqRead = true) { Bits(width = 64) }
val llc = new DRAMSideLLC(2048, 8, 4, llc_leaf, llc_leaf) val llc = new DRAMSideLLC(2048, 8, 4, llc_leaf, llc_leaf)
for (i <- 0 until NTILES) {
hub.io.tiles(i) <> io.tiles(i)
htif.io.cpu(i) <> io.htif(i)
}
hub.io.tiles(NTILES) <> htif.io.mem hub.io.tiles(NTILES) <> htif.io.mem
llc.io.cpu.req_cmd <> Queue(hub.io.mem.req_cmd) llc.io.cpu.req_cmd <> Queue(hub.io.mem.req_cmd)
@ -76,21 +85,38 @@ class Top extends Component
mem_serdes.io.narrow.resp.bits := mio.io.in_fast.bits mem_serdes.io.narrow.resp.bits := mio.io.in_fast.bits
io.mem_backup.resp <> mio.io.in_slow io.mem_backup.resp <> mio.io.in_slow
io.mem_backup_clk := mio.io.clk_slow io.mem_backup_clk := mio.io.clk_slow
}
class Top extends Component
{
val htif_width = 8
val co = if(ENABLE_SHARING) {
if(ENABLE_CLEAN_EXCLUSIVE) new MESICoherence
else new MSICoherence
} else {
if(ENABLE_CLEAN_EXCLUSIVE) new MEICoherence
else new MICoherence
}
val io = new ioTop(htif_width)
val uncore = new Uncore(htif_width, NTILES, co)
uncore.io <> io
var error_mode = Bool(false) var error_mode = Bool(false)
for (i <- 0 until NTILES) { for (i <- 0 until NTILES) {
val tile = new Tile(co, resetSignal = htif.io.cpu(i).reset) val hl = uncore.io.htif(i)
val h = hub.io.tiles(i) val tl = uncore.io.tiles(i)
tile.io.host <> htif.io.cpu(i) val tile = new Tile(co, resetSignal = hl.reset)
h.xact_init <> Queue(tile.io.tilelink.xact_init) tile.io.host <> hl
h.xact_init_data <> Queue(tile.io.tilelink.xact_init_data) tl.xact_init <> Queue(tile.io.tilelink.xact_init)
tile.io.tilelink.xact_abort <> Queue(h.xact_abort) tl.xact_init_data <> Queue(tile.io.tilelink.xact_init_data)
tile.io.tilelink.xact_rep <> Queue(h.xact_rep, 1, pipe = true) tile.io.tilelink.xact_abort <> Queue(tl.xact_abort)
h.xact_finish <> Queue(tile.io.tilelink.xact_finish) tile.io.tilelink.xact_rep <> Queue(tl.xact_rep, 1, pipe = true)
tile.io.tilelink.probe_req <> Queue(h.probe_req) tl.xact_finish <> Queue(tile.io.tilelink.xact_finish)
h.probe_rep <> Queue(tile.io.tilelink.probe_rep, 1) tile.io.tilelink.probe_req <> Queue(tl.probe_req)
h.probe_rep_data <> Queue(tile.io.tilelink.probe_rep_data) tl.probe_rep <> Queue(tile.io.tilelink.probe_rep, 1)
h.incoherent := htif.io.cpu(i).reset tl.probe_rep_data <> Queue(tile.io.tilelink.probe_rep_data)
tl.incoherent := hl.reset
error_mode = error_mode || tile.io.host.debug.error_mode error_mode = error_mode || tile.io.host.debug.error_mode
} }
io.debug.error_mode := error_mode io.debug.error_mode := error_mode