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factor out unit tests into separate package

This commit is contained in:
Howard Mao 2016-07-14 12:18:11 -07:00
parent 4af6313288
commit 69eebaf362
16 changed files with 647 additions and 593 deletions
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1
groundtest/src/main/scala/cachetest.scala → groundtest/src/main/scala/CacheTest.scala
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@ -4,6 +4,7 @@ import Chisel._
import uncore.tilelink._
import uncore.constants._
import uncore.agents._
import groundtest.common._
import cde.{Parameters, Field}
class CacheFillTest(implicit p: Parameters) extends GroundTest()(p)

1
groundtest/src/main/scala/comparator.scala → groundtest/src/main/scala/Comparator.scala
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@ -5,6 +5,7 @@ import uncore.tilelink._
import uncore.constants._
import junctions._
import rocket._
import groundtest.common._
import scala.util.Random
import cde.{Parameters, Field}

1
groundtest/src/main/scala/generator.scala → groundtest/src/main/scala/Generator.scala
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@ -6,6 +6,7 @@ import uncore.devices.NTiles
import uncore.constants._
import junctions._
import rocket._
import groundtest.common._
import scala.util.Random
import cde.{Parameters, Field}

1
groundtest/src/main/scala/nastitest.scala → groundtest/src/main/scala/NastiTest.scala
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@ -4,6 +4,7 @@ import Chisel._
import uncore.tilelink._
import uncore.converters._
import junctions._
import groundtest.common._
import cde.Parameters
class NastiGenerator(id: Int)(implicit val p: Parameters) extends Module

1
groundtest/src/main/scala/regression.scala → groundtest/src/main/scala/Regression.scala
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@ -6,6 +6,7 @@ import uncore.constants._
import uncore.agents._
import junctions.{ParameterizedBundle, HasAddrMapParameters}
import rocket.HellaCacheIO
import groundtest.common._
import cde.{Parameters, Field}
class RegressionIO(implicit val p: Parameters) extends ParameterizedBundle()(p) {

1
groundtest/src/main/scala/tracegen.scala → groundtest/src/main/scala/TraceGen.scala
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@ -22,6 +22,7 @@ import uncore.constants._
import uncore.devices.NTiles
import junctions._
import rocket._
import groundtest.common._
import scala.util.Random
import cde.{Parameters, Field}

2
groundtest/src/main/scala/tile.scala → groundtest/src/main/scala/common/Tile.scala
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@ -1,4 +1,4 @@
package groundtest
package groundtest.common
import Chisel._
import rocket._

2
groundtest/src/main/scala/util.scala → groundtest/src/main/scala/common/Util.scala
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@ -1,4 +1,4 @@
package groundtest
package groundtest.common
import Chisel._

591
groundtest/src/main/scala/unittest.scala
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@ -1,591 +0,0 @@
package groundtest
import Chisel._
import junctions._
import junctions.NastiConstants._
import uncore.tilelink._
import uncore.converters._
import uncore.constants._
import uncore.devices._
import cde.Parameters
abstract class UnitTest extends Module {
val io = new Bundle {
val finished = Bool(OUTPUT)
val start = Bool(INPUT)
}
}
class MemoryTestDriver(name: String, dataWidth: Int, burstLen: Int, nBursts: Int)
(implicit p: Parameters) extends NastiModule {
val io = new Bundle {
val nasti = new NastiIO
val finished = Bool(OUTPUT)
val start = Bool(INPUT)
}
val dataBytes = dataWidth / 8
val nastiDataBytes = nastiXDataBits / 8
val (write_cnt, write_done) = Counter(io.nasti.w.fire(), burstLen)
val (read_cnt, read_done) = Counter(io.nasti.r.fire(), burstLen)
val (req_cnt, reqs_done) = Counter(read_done, nBursts)
val req_addr = Cat(req_cnt, UInt(0, log2Up(burstLen * dataBytes)))
val write_data = UInt(0x10000000L, dataWidth) | Cat(req_cnt, write_cnt)
val expected_data = UInt(0x10000000L, dataWidth) | Cat(req_cnt, read_cnt)
val (s_idle :: s_write_addr :: s_write_data :: s_write_stall :: s_write_resp ::
s_read_addr :: s_read_data :: s_read_stall :: s_done :: Nil) = Enum(Bits(), 9)
val state = Reg(init = s_idle)
val (stall_cnt, stall_done) = Counter(state === s_read_stall, 2)
io.nasti.aw.valid := (state === s_write_addr)
io.nasti.aw.bits := NastiWriteAddressChannel(
id = UInt(0),
addr = req_addr,
size = UInt(log2Up(dataBytes)),
len = UInt(burstLen - 1))
io.nasti.w.valid := (state === s_write_data)
io.nasti.w.bits := NastiWriteDataChannel(
data = Cat(write_data, write_data),
last = (write_cnt === UInt(burstLen - 1)))
io.nasti.b.ready := (state === s_write_resp)
io.nasti.ar.valid := (state === s_read_addr)
io.nasti.ar.bits := NastiReadAddressChannel(
id = UInt(0),
addr = req_addr,
size = UInt(log2Up(dataBytes)),
len = UInt(burstLen - 1))
io.nasti.r.ready := (state === s_read_data)
io.finished := (state === s_done)
when (state === s_idle && io.start) { state := s_write_addr }
when (io.nasti.aw.fire()) { state := s_write_data }
when (io.nasti.w.fire()) { state := s_write_stall }
when (state === s_write_stall) { state := s_write_data }
when (write_done) { state := s_write_resp }
when (io.nasti.b.fire()) { state := s_read_addr }
when (io.nasti.ar.fire()) { state := s_read_data }
when (io.nasti.r.fire()) { state := s_read_stall }
when (stall_done) { state := s_read_data }
when (read_done) { state := s_write_addr }
when (reqs_done) { state := s_done }
val full_addr = req_addr + (read_cnt << UInt(log2Up(dataBytes)))
val byteshift = full_addr(log2Up(nastiDataBytes) - 1, 0)
val bitshift = Cat(byteshift, UInt(0, 3))
val read_data = (io.nasti.r.bits.data >> bitshift) & Fill(dataWidth, UInt(1, 1))
assert(!io.nasti.r.valid || read_data === expected_data,
s"MemoryTestDriver for $name got wrong data")
val ar_timeout = Timer(1024, io.nasti.ar.fire(), io.nasti.r.fire())
val aw_timeout = Timer(1024, io.nasti.aw.fire(), io.nasti.b.fire())
assert(!ar_timeout && !aw_timeout,
s"MemoryTestDriver for $name timed out")
}
class HastiTest(implicit p: Parameters) extends UnitTest {
val sram = Module(new HastiTestSRAM(8))
val bus = Module(new HastiBus(Seq(a => Bool(true))))
val conv = Module(new HastiMasterIONastiIOConverter)
val driver = Module(new MemoryTestDriver("HastiTest", 32, 8, 2))
bus.io.slaves(0) <> sram.io
bus.io.master <> conv.io.hasti
conv.io.nasti <> driver.io.nasti
io.finished := driver.io.finished
driver.io.start := io.start
}
class NastiDemuxDriver(n: Int)(implicit p: Parameters) extends Module {
val io = new Bundle {
val start = Bool(INPUT)
val finished = Bool(OUTPUT)
val nasti = new NastiIO
val select = UInt(OUTPUT, log2Up(n))
}
val (s_idle :: s_write_addr :: s_write_data :: s_write_resp ::
s_read_addr :: s_read_resp :: s_done :: Nil) = Enum(Bits(), 7)
val state = Reg(init = s_idle)
val select = Reg(init = UInt(0, log2Up(n)))
when (state === s_idle && io.start) { state := s_write_addr }
when (io.nasti.aw.fire()) { state := s_write_data }
when (io.nasti.w.fire()) { state := s_write_resp }
when (io.nasti.b.fire()) { state := s_read_addr }
when (io.nasti.ar.fire()) { state := s_read_resp }
when (io.nasti.r.fire()) {
when (select === UInt(n - 1)) {
state := s_done
} .otherwise {
select := select + UInt(1)
state := s_write_addr
}
}
io.nasti.aw.valid := (state === s_write_addr)
io.nasti.aw.bits := NastiWriteAddressChannel(
id = UInt(0),
addr = UInt(0),
size = UInt("b011"))
io.nasti.w.valid := (state === s_write_data)
io.nasti.w.bits := NastiWriteDataChannel(data = select)
io.nasti.b.ready := (state === s_write_resp)
io.nasti.ar.valid := (state === s_read_addr)
io.nasti.ar.bits := NastiReadAddressChannel(
id = UInt(0),
addr = UInt(0),
size = UInt("b011"))
io.nasti.r.ready := (state === s_read_resp)
io.finished := (state === s_done)
io.select := select
assert(!io.nasti.r.valid || io.nasti.r.bits.data === select,
"NASTI DeMux test: Read data did not match")
}
class NastiDemuxSlave(implicit p: Parameters) extends NastiModule()(p) {
val io = (new NastiIO).flip
val (s_write_wait :: s_write_data :: s_write_resp ::
s_read_wait :: s_read_resp :: s_done :: Nil) = Enum(Bits(), 6)
val state = Reg(init = s_write_wait)
val value = Reg(UInt(width = 64))
val id = Reg(UInt(width = nastiXIdBits))
when (io.aw.fire()) {
id := io.aw.bits.id
state := s_write_data
}
when (io.w.fire()) {
value := io.w.bits.data
state := s_write_resp
}
when (io.b.fire()) { state := s_read_wait }
when (io.ar.fire()) {
id := io.ar.bits.id
state := s_read_resp
}
when (io.r.fire()) { state := s_done }
io.aw.ready := (state === s_write_wait)
io.w.ready := (state === s_write_data)
io.b.valid := (state === s_write_resp)
io.b.bits := NastiWriteResponseChannel(id = id)
io.ar.ready := (state === s_read_wait)
io.r.valid := (state === s_read_resp)
io.r.bits := NastiReadDataChannel(id = id, data = value)
}
class NastiMemoryDemuxTest(implicit p: Parameters) extends UnitTest {
val nSlaves = 4
val driver = Module(new NastiDemuxDriver(nSlaves))
driver.io.start := io.start
io.finished := driver.io.finished
val demux = Module(new NastiMemoryDemux(nSlaves))
demux.io.master <> driver.io.nasti
demux.io.select := driver.io.select
for (i <- 0 until nSlaves) {
val slave = Module(new NastiDemuxSlave)
slave.io <> demux.io.slaves(i)
}
}
class MultiWidthFifoTest extends UnitTest {
val big2little = Module(new MultiWidthFifo(16, 8, 8))
val little2big = Module(new MultiWidthFifo(8, 16, 4))
val bl_send = Reg(init = Bool(false))
val lb_send = Reg(init = Bool(false))
val bl_recv = Reg(init = Bool(false))
val lb_recv = Reg(init = Bool(false))
val bl_finished = Reg(init = Bool(false))
val lb_finished = Reg(init = Bool(false))
val bl_data = Vec.tabulate(4){i => UInt((2 * i + 1) * 256 + 2 * i, 16)}
val lb_data = Vec.tabulate(8){i => UInt(i, 8)}
val (bl_send_cnt, bl_send_done) = Counter(big2little.io.in.fire(), 4)
val (lb_send_cnt, lb_send_done) = Counter(little2big.io.in.fire(), 8)
val (bl_recv_cnt, bl_recv_done) = Counter(big2little.io.out.fire(), 8)
val (lb_recv_cnt, lb_recv_done) = Counter(little2big.io.out.fire(), 4)
big2little.io.in.valid := bl_send
big2little.io.in.bits := bl_data(bl_send_cnt)
big2little.io.out.ready := bl_recv
little2big.io.in.valid := lb_send
little2big.io.in.bits := lb_data(lb_send_cnt)
little2big.io.out.ready := lb_recv
val bl_recv_data_idx = bl_recv_cnt >> UInt(1)
val bl_recv_data = Mux(bl_recv_cnt(0),
bl_data(bl_recv_data_idx)(15, 8),
bl_data(bl_recv_data_idx)(7, 0))
val lb_recv_data = Cat(
lb_data(Cat(lb_recv_cnt, UInt(1, 1))),
lb_data(Cat(lb_recv_cnt, UInt(0, 1))))
when (io.start) {
bl_send := Bool(true)
lb_send := Bool(true)
}
when (bl_send_done) {
bl_send := Bool(false)
bl_recv := Bool(true)
}
when (lb_send_done) {
lb_send := Bool(false)
lb_recv := Bool(true)
}
when (bl_recv_done) {
bl_recv := Bool(false)
bl_finished := Bool(true)
}
when (lb_recv_done) {
lb_recv := Bool(false)
lb_finished := Bool(true)
}
io.finished := bl_finished && lb_finished
val bl_start_recv = Reg(next = bl_send_done)
val lb_start_recv = Reg(next = lb_send_done)
assert(!little2big.io.out.valid || little2big.io.out.bits === lb_recv_data,
"Little to Big data mismatch")
assert(!big2little.io.out.valid || big2little.io.out.bits === bl_recv_data,
"Bit to Little data mismatch")
assert(!lb_start_recv || little2big.io.count === UInt(4),
"Little to Big count incorrect")
assert(!bl_start_recv || big2little.io.count === UInt(8),
"Big to Little count incorrect")
}
class TileLinkToSmiConverterTestDriver(implicit p: Parameters) extends Module {
val io = new Bundle {
val mem = new ClientUncachedTileLinkIO
val start = Bool(INPUT)
val finished = Bool(OUTPUT)
}
val nChecks = 32
val count = Reg(init = UInt(0, log2Up(nChecks)))
val addr = Cat(count, UInt(0, 2))
val data = Fill(4, count)
val (s_idle :: s_wreq :: s_wresp :: s_rreq :: s_rresp ::
s_finished :: Nil) = Enum(Bits(), 6)
val state = Reg(init = s_idle)
when (state === s_idle && io.start) { state := s_wreq }
when (state === s_wreq && io.mem.acquire.ready) { state := s_wresp }
when (state === s_wresp && io.mem.grant.valid) {
count := count + UInt(1)
when (count === UInt(nChecks - 1)) {
state := s_rreq
} .otherwise {
state := s_wreq
}
}
when (state === s_rreq && io.mem.acquire.ready) { state := s_rresp }
when (state === s_rresp && io.mem.grant.valid) {
count := count + UInt(1)
when (count === UInt(nChecks - 1)) {
state := s_finished
} .otherwise {
state := s_rreq
}
}
val blockOffsetBits = p(CacheBlockOffsetBits)
val byteAddrBits = log2Up(p(TLKey(p(TLId))).writeMaskBits)
io.mem.acquire.valid := (state === s_wreq) || (state === s_rreq)
io.mem.acquire.bits := Mux(state === s_wreq,
Put(
client_xact_id = UInt(0),
addr_block = addr >> UInt(blockOffsetBits),
addr_beat = addr(blockOffsetBits - 1, byteAddrBits),
data = Mux(count(0), data << UInt(32), data),
wmask = Some(FillInterleaved(4, UIntToOH(count(0))))),
Get(
client_xact_id = UInt(0),
addr_block = addr >> UInt(blockOffsetBits),
addr_beat = addr(blockOffsetBits - 1, byteAddrBits),
addr_byte = addr(byteAddrBits - 1, 0),
operand_size = MT_W,
alloc = Bool(false)))
io.mem.grant.ready := (state === s_wresp) || (state === s_rresp)
assert(!io.mem.grant.valid || !io.mem.grant.bits.hasData() ||
Mux(count(0),
io.mem.grant.bits.data(63, 32) === data,
io.mem.grant.bits.data(31, 0) === data),
"Test Driver got incorrect data")
io.finished := (state === s_finished)
}
class TileLinkToSmiConverterTest(implicit p: Parameters) extends UnitTest {
val outermostParams = p.alterPartial({ case TLId => "Outermost" })
val smimem = Module(new SmiMem(32, 64))
val conv = Module(new SmiIOTileLinkIOConverter(32, 6)(outermostParams))
val driver = Module(new TileLinkToSmiConverterTestDriver()(outermostParams))
conv.io.tl <> driver.io.mem
smimem.io <> conv.io.smi
driver.io.start := io.start
io.finished := driver.io.finished
}
class AtosConverterTestFrontend(implicit p: Parameters) extends NastiModule()(p) {
val io = new Bundle {
val nasti = new NastiIO
val finished = Bool(OUTPUT)
}
val n_words = 4
val test_data = Vec.tabulate(n_words) { i => UInt(i * 48) }
val (s_idle :: s_waddr :: s_wdata :: s_wresp ::
s_raddr :: s_rresp :: s_done :: Nil) = Enum(Bits(), 7)
val state = Reg(init = s_idle)
when (state === s_idle) { state := s_waddr }
when (io.nasti.aw.fire()) { state := s_wdata }
when (io.nasti.w.fire() && io.nasti.w.bits.last) { state := s_wresp }
when (io.nasti.b.fire()) { state := s_raddr }
when (io.nasti.ar.fire()) { state := s_rresp }
when (io.nasti.r.fire() && io.nasti.r.bits.last) { state := s_done }
val (w_count, w_last) = Counter(io.nasti.w.fire(), n_words)
io.nasti.aw.valid := (state === s_waddr)
io.nasti.aw.bits := NastiWriteAddressChannel(
id = UInt(0),
addr = UInt(0),
size = UInt(log2Up(nastiXDataBits / 8)),
len = UInt(n_words - 1))
io.nasti.w.valid := (state === s_wdata)
io.nasti.w.bits := NastiWriteDataChannel(
data = test_data(w_count),
last = w_count === UInt(n_words - 1))
io.nasti.ar.valid := (state === s_raddr)
io.nasti.ar.bits := NastiReadAddressChannel(
id = UInt(0),
addr = UInt(0),
size = UInt(log2Up(nastiXDataBits / 8)),
len = UInt(n_words - 1))
io.nasti.b.ready := (state === s_wresp)
io.nasti.r.ready := (state === s_rresp)
io.finished := (state === s_done)
val (r_count, r_last) = Counter(io.nasti.r.fire(), n_words)
assert(!io.nasti.r.valid || io.nasti.r.bits.data === test_data(r_count),
"AtosConverterTest: returned data doesn't match expected")
}
class AtosConverterTestBackend(implicit p: Parameters) extends NastiModule()(p) {
val io = new Bundle {
val nasti = (new NastiIO).flip
val finished = Bool(OUTPUT)
}
val (s_waddr :: s_wdata :: s_wresp ::
s_raddr :: s_rresp :: s_done :: Nil) = Enum(Bits(), 6)
val state = Reg(init = s_waddr)
val n_words = 4
val test_data = Reg(Vec(n_words, UInt(width = nastiXDataBits)))
val req_id = Reg(UInt(width = nastiXIdBits))
val (w_count, w_last) = Counter(io.nasti.w.fire(), n_words)
val (r_count, r_last) = Counter(io.nasti.r.fire(), n_words)
when (io.nasti.aw.fire()) {
req_id := io.nasti.aw.bits.id
state := s_wdata
}
when (io.nasti.w.fire()) {
test_data(w_count) := io.nasti.w.bits.data
when (io.nasti.w.bits.last) { state := s_wresp }
}
when (io.nasti.b.fire()) { state := s_raddr }
when (io.nasti.ar.fire()) {
req_id := io.nasti.ar.bits.id
state := s_rresp
}
when (io.nasti.r.fire() && io.nasti.r.bits.last) { state := s_done }
io.nasti.aw.ready := (state === s_waddr)
io.nasti.w.ready := (state === s_wdata)
io.nasti.ar.ready := (state === s_raddr)
io.nasti.b.valid := (state === s_wresp)
io.nasti.b.bits := NastiWriteResponseChannel(id = req_id)
io.nasti.r.valid := (state === s_rresp)
io.nasti.r.bits := NastiReadDataChannel(
id = req_id,
data = test_data(r_count),
last = r_last)
io.finished := (state === s_done)
}
class AtosConverterTest(implicit p: Parameters) extends UnitTest {
val frontend = Module(new AtosConverterTestFrontend)
val backend = Module(new AtosConverterTestBackend)
val serdes = Module(new AtosSerdes(8))
val desser = Module(new AtosDesser(8))
val client_conv = Module(new AtosClientConverter)
val manager_conv = Module(new AtosManagerConverter)
client_conv.io.nasti <> frontend.io.nasti
serdes.io.wide <> client_conv.io.atos
desser.io.narrow <> serdes.io.narrow
manager_conv.io.atos <> desser.io.wide
backend.io.nasti <> manager_conv.io.nasti
io.finished := frontend.io.finished && backend.io.finished
}
class BRAMSlaveDriver(implicit val p: Parameters) extends Module
with HasTileLinkParameters {
val io = new Bundle {
val mem = new ClientUncachedTileLinkIO
val start = Bool(INPUT)
val finished = Bool(OUTPUT)
}
val (s_idle :: s_pf_req :: s_pf_stall :: s_pf_resp ::
s_put_req :: s_put_stall :: s_put_resp ::
s_get_req :: s_get_stall :: s_get_resp ::
s_done :: Nil) = Enum(Bits(), 11)
val state = Reg(init = s_idle)
val pf_acquire = PutPrefetch(
client_xact_id = UInt(0),
addr_block = UInt(0))
val (put_beat, put_done) = Counter(
state === s_put_req && io.mem.acquire.ready, tlDataBeats)
val put_data = Fill(tlDataBits / tlBeatAddrBits, put_beat)
val put_acquire = PutBlock(
client_xact_id = UInt(0),
addr_block = UInt(0),
addr_beat = put_beat,
data = put_data)
val get_acquire = GetBlock(
client_xact_id = UInt(0),
addr_block = UInt(0))
val (get_beat, get_done) = Counter(
state === s_get_resp && io.mem.grant.valid, tlDataBeats)
val get_data = Fill(tlDataBits / tlBeatAddrBits, get_beat)
val (stall_cnt, stall_done) = Counter(
state === s_pf_stall || state === s_put_stall || state === s_get_stall, 4)
io.mem.acquire.valid := (state === s_pf_req) || (state === s_put_req) || (state === s_get_req)
io.mem.acquire.bits := MuxLookup(state, get_acquire, Seq(
s_pf_req -> pf_acquire,
s_put_req -> put_acquire))
io.mem.grant.ready := (state === s_pf_resp) || (state === s_put_resp) || (state === s_get_resp)
when (state === s_idle && io.start) { state := s_pf_req }
when (state === s_pf_req && io.mem.acquire.ready) { state := s_pf_stall }
when (state === s_pf_stall && stall_done) { state := s_pf_resp }
when (state === s_pf_resp && io.mem.grant.valid) { state := s_put_req }
when (state === s_put_req && io.mem.acquire.ready) { state := s_put_stall }
when (state === s_put_stall && stall_done) { state := s_put_req }
when (put_done) { state := s_put_resp }
when (state === s_put_resp && io.mem.grant.valid) { state := s_get_req }
when (state === s_get_req && io.mem.acquire.ready) { state := s_get_stall }
when (state === s_get_stall && stall_done) { state := s_get_resp }
when (state === s_get_resp && io.mem.grant.valid) { state := s_get_stall }
when (get_done) { state := s_done }
io.finished := (state === s_done)
assert(!io.mem.grant.valid || !io.mem.grant.bits.hasData() ||
io.mem.grant.bits.data === get_data,
"BRAMSlaveTest: data doesn't match")
}
class BRAMSlaveTest(implicit val p: Parameters) extends UnitTest
with HasTileLinkParameters {
val driver = Module(new BRAMSlaveDriver)
val bram = Module(new BRAMSlave(tlDataBeats))
driver.io.start := io.start
io.finished := driver.io.finished
bram.io <> driver.io.mem
}
class UnitTestSuite(implicit p: Parameters) extends GroundTest()(p) {
val tests = Seq(
Module(new MultiWidthFifoTest),
Module(new TileLinkToSmiConverterTest),
Module(new AtosConverterTest),
Module(new NastiMemoryDemuxTest),
Module(new HastiTest))
val s_idle :: s_start :: s_wait :: Nil = Enum(Bits(), 3)
val state = Reg(init = s_idle)
when (state === s_idle) { state := s_start }
when (state === s_start) { state := s_wait }
io.status.timeout.valid := Bool(false)
tests.zipWithIndex.foreach { case (mod, i) =>
mod.io.start := (state === s_start)
val timeout = Timer(1000, mod.io.start, mod.io.finished)
assert(!timeout, s"UnitTest $i timed out")
when (timeout) {
io.status.timeout.valid := Bool(true)
io.status.timeout.bits := UInt(i)
}
}
io.status.finished := tests.map(_.io.finished).reduce(_ && _)
io.status.error.valid := Bool(false)
}

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package groundtest.unittests
import Chisel._
import junctions._
import junctions.NastiConstants._
import cde.Parameters
class AtosConverterTestFrontend(implicit p: Parameters) extends NastiModule()(p) {
val io = new Bundle {
val nasti = new NastiIO
val finished = Bool(OUTPUT)
}
val n_words = 4
val test_data = Vec.tabulate(n_words) { i => UInt(i * 48) }
val (s_idle :: s_waddr :: s_wdata :: s_wresp ::
s_raddr :: s_rresp :: s_done :: Nil) = Enum(Bits(), 7)
val state = Reg(init = s_idle)
when (state === s_idle) { state := s_waddr }
when (io.nasti.aw.fire()) { state := s_wdata }
when (io.nasti.w.fire() && io.nasti.w.bits.last) { state := s_wresp }
when (io.nasti.b.fire()) { state := s_raddr }
when (io.nasti.ar.fire()) { state := s_rresp }
when (io.nasti.r.fire() && io.nasti.r.bits.last) { state := s_done }
val (w_count, w_last) = Counter(io.nasti.w.fire(), n_words)
io.nasti.aw.valid := (state === s_waddr)
io.nasti.aw.bits := NastiWriteAddressChannel(
id = UInt(0),
addr = UInt(0),
size = UInt(log2Up(nastiXDataBits / 8)),
len = UInt(n_words - 1))
io.nasti.w.valid := (state === s_wdata)
io.nasti.w.bits := NastiWriteDataChannel(
data = test_data(w_count),
last = w_count === UInt(n_words - 1))
io.nasti.ar.valid := (state === s_raddr)
io.nasti.ar.bits := NastiReadAddressChannel(
id = UInt(0),
addr = UInt(0),
size = UInt(log2Up(nastiXDataBits / 8)),
len = UInt(n_words - 1))
io.nasti.b.ready := (state === s_wresp)
io.nasti.r.ready := (state === s_rresp)
io.finished := (state === s_done)
val (r_count, r_last) = Counter(io.nasti.r.fire(), n_words)
assert(!io.nasti.r.valid || io.nasti.r.bits.data === test_data(r_count),
"AtosConverterTest: returned data doesn't match expected")
}
class AtosConverterTestBackend(implicit p: Parameters) extends NastiModule()(p) {
val io = new Bundle {
val nasti = (new NastiIO).flip
val finished = Bool(OUTPUT)
}
val (s_waddr :: s_wdata :: s_wresp ::
s_raddr :: s_rresp :: s_done :: Nil) = Enum(Bits(), 6)
val state = Reg(init = s_waddr)
val n_words = 4
val test_data = Reg(Vec(n_words, UInt(width = nastiXDataBits)))
val req_id = Reg(UInt(width = nastiXIdBits))
val (w_count, w_last) = Counter(io.nasti.w.fire(), n_words)
val (r_count, r_last) = Counter(io.nasti.r.fire(), n_words)
when (io.nasti.aw.fire()) {
req_id := io.nasti.aw.bits.id
state := s_wdata
}
when (io.nasti.w.fire()) {
test_data(w_count) := io.nasti.w.bits.data
when (io.nasti.w.bits.last) { state := s_wresp }
}
when (io.nasti.b.fire()) { state := s_raddr }
when (io.nasti.ar.fire()) {
req_id := io.nasti.ar.bits.id
state := s_rresp
}
when (io.nasti.r.fire() && io.nasti.r.bits.last) { state := s_done }
io.nasti.aw.ready := (state === s_waddr)
io.nasti.w.ready := (state === s_wdata)
io.nasti.ar.ready := (state === s_raddr)
io.nasti.b.valid := (state === s_wresp)
io.nasti.b.bits := NastiWriteResponseChannel(id = req_id)
io.nasti.r.valid := (state === s_rresp)
io.nasti.r.bits := NastiReadDataChannel(
id = req_id,
data = test_data(r_count),
last = r_last)
io.finished := (state === s_done)
}
class AtosConverterTest(implicit p: Parameters) extends UnitTest {
val frontend = Module(new AtosConverterTestFrontend)
val backend = Module(new AtosConverterTestBackend)
val serdes = Module(new AtosSerdes(8))
val desser = Module(new AtosDesser(8))
val client_conv = Module(new AtosClientConverter)
val manager_conv = Module(new AtosManagerConverter)
client_conv.io.nasti <> frontend.io.nasti
serdes.io.wide <> client_conv.io.atos
desser.io.narrow <> serdes.io.narrow
manager_conv.io.atos <> desser.io.wide
backend.io.nasti <> manager_conv.io.nasti
io.finished := frontend.io.finished && backend.io.finished
}

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groundtest/src/main/scala/unittests/BRAMSlaveTest.scala Normal file
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package groundtest.unittests
import Chisel._
import uncore.tilelink._
import uncore.devices._
import cde.Parameters
class BRAMSlaveDriver(implicit val p: Parameters) extends Module
with HasTileLinkParameters {
val io = new Bundle {
val mem = new ClientUncachedTileLinkIO
val start = Bool(INPUT)
val finished = Bool(OUTPUT)
}
val (s_idle :: s_pf_req :: s_pf_stall :: s_pf_resp ::
s_put_req :: s_put_stall :: s_put_resp ::
s_get_req :: s_get_stall :: s_get_resp ::
s_done :: Nil) = Enum(Bits(), 11)
val state = Reg(init = s_idle)
val pf_acquire = PutPrefetch(
client_xact_id = UInt(0),
addr_block = UInt(0))
val (put_beat, put_done) = Counter(
state === s_put_req && io.mem.acquire.ready, tlDataBeats)
val put_data = Fill(tlDataBits / tlBeatAddrBits, put_beat)
val put_acquire = PutBlock(
client_xact_id = UInt(0),
addr_block = UInt(0),
addr_beat = put_beat,
data = put_data)
val get_acquire = GetBlock(
client_xact_id = UInt(0),
addr_block = UInt(0))
val (get_beat, get_done) = Counter(
state === s_get_resp && io.mem.grant.valid, tlDataBeats)
val get_data = Fill(tlDataBits / tlBeatAddrBits, get_beat)
val (stall_cnt, stall_done) = Counter(
state === s_pf_stall || state === s_put_stall || state === s_get_stall, 4)
io.mem.acquire.valid := (state === s_pf_req) || (state === s_put_req) || (state === s_get_req)
io.mem.acquire.bits := MuxLookup(state, get_acquire, Seq(
s_pf_req -> pf_acquire,
s_put_req -> put_acquire))
io.mem.grant.ready := (state === s_pf_resp) || (state === s_put_resp) || (state === s_get_resp)
when (state === s_idle && io.start) { state := s_pf_req }
when (state === s_pf_req && io.mem.acquire.ready) { state := s_pf_stall }
when (state === s_pf_stall && stall_done) { state := s_pf_resp }
when (state === s_pf_resp && io.mem.grant.valid) { state := s_put_req }
when (state === s_put_req && io.mem.acquire.ready) { state := s_put_stall }
when (state === s_put_stall && stall_done) { state := s_put_req }
when (put_done) { state := s_put_resp }
when (state === s_put_resp && io.mem.grant.valid) { state := s_get_req }
when (state === s_get_req && io.mem.acquire.ready) { state := s_get_stall }
when (state === s_get_stall && stall_done) { state := s_get_resp }
when (state === s_get_resp && io.mem.grant.valid) { state := s_get_stall }
when (get_done) { state := s_done }
io.finished := (state === s_done)
assert(!io.mem.grant.valid || !io.mem.grant.bits.hasData() ||
io.mem.grant.bits.data === get_data,
"BRAMSlaveTest: data doesn't match")
}
class BRAMSlaveTest(implicit val p: Parameters) extends UnitTest
with HasTileLinkParameters {
val driver = Module(new BRAMSlaveDriver)
val bram = Module(new BRAMSlave(tlDataBeats))
driver.io.start := io.start
io.finished := driver.io.finished
bram.io <> driver.io.mem
}

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package groundtest.unittests
import Chisel._
import junctions._
import junctions.NastiConstants._
import uncore.tilelink._
import uncore.converters._
import uncore.constants._
import uncore.devices._
import groundtest.common._
import cde.Parameters
abstract class UnitTest extends Module {
val io = new Bundle {
val finished = Bool(OUTPUT)
val start = Bool(INPUT)
}
}
class MemoryTestDriver(name: String, dataWidth: Int, burstLen: Int, nBursts: Int)
(implicit p: Parameters) extends NastiModule {
val io = new Bundle {
val nasti = new NastiIO
val finished = Bool(OUTPUT)
val start = Bool(INPUT)
}
val dataBytes = dataWidth / 8
val nastiDataBytes = nastiXDataBits / 8
val (write_cnt, write_done) = Counter(io.nasti.w.fire(), burstLen)
val (read_cnt, read_done) = Counter(io.nasti.r.fire(), burstLen)
val (req_cnt, reqs_done) = Counter(read_done, nBursts)
val req_addr = Cat(req_cnt, UInt(0, log2Up(burstLen * dataBytes)))
val write_data = UInt(0x10000000L, dataWidth) | Cat(req_cnt, write_cnt)
val expected_data = UInt(0x10000000L, dataWidth) | Cat(req_cnt, read_cnt)
val (s_idle :: s_write_addr :: s_write_data :: s_write_stall :: s_write_resp ::
s_read_addr :: s_read_data :: s_read_stall :: s_done :: Nil) = Enum(Bits(), 9)
val state = Reg(init = s_idle)
val (stall_cnt, stall_done) = Counter(state === s_read_stall, 2)
io.nasti.aw.valid := (state === s_write_addr)
io.nasti.aw.bits := NastiWriteAddressChannel(
id = UInt(0),
addr = req_addr,
size = UInt(log2Up(dataBytes)),
len = UInt(burstLen - 1))
io.nasti.w.valid := (state === s_write_data)
io.nasti.w.bits := NastiWriteDataChannel(
data = Cat(write_data, write_data),
last = (write_cnt === UInt(burstLen - 1)))
io.nasti.b.ready := (state === s_write_resp)
io.nasti.ar.valid := (state === s_read_addr)
io.nasti.ar.bits := NastiReadAddressChannel(
id = UInt(0),
addr = req_addr,
size = UInt(log2Up(dataBytes)),
len = UInt(burstLen - 1))
io.nasti.r.ready := (state === s_read_data)
io.finished := (state === s_done)
when (state === s_idle && io.start) { state := s_write_addr }
when (io.nasti.aw.fire()) { state := s_write_data }
when (io.nasti.w.fire()) { state := s_write_stall }
when (state === s_write_stall) { state := s_write_data }
when (write_done) { state := s_write_resp }
when (io.nasti.b.fire()) { state := s_read_addr }
when (io.nasti.ar.fire()) { state := s_read_data }
when (io.nasti.r.fire()) { state := s_read_stall }
when (stall_done) { state := s_read_data }
when (read_done) { state := s_write_addr }
when (reqs_done) { state := s_done }
val full_addr = req_addr + (read_cnt << UInt(log2Up(dataBytes)))
val byteshift = full_addr(log2Up(nastiDataBytes) - 1, 0)
val bitshift = Cat(byteshift, UInt(0, 3))
val read_data = (io.nasti.r.bits.data >> bitshift) & Fill(dataWidth, UInt(1, 1))
assert(!io.nasti.r.valid || read_data === expected_data,
s"MemoryTestDriver for $name got wrong data")
val ar_timeout = Timer(1024, io.nasti.ar.fire(), io.nasti.r.fire())
val aw_timeout = Timer(1024, io.nasti.aw.fire(), io.nasti.b.fire())
assert(!ar_timeout && !aw_timeout,
s"MemoryTestDriver for $name timed out")
}
class UnitTestSuite(implicit p: Parameters) extends GroundTest()(p) {
val tests = Seq(
Module(new MultiWidthFifoTest),
Module(new TileLinkToSmiConverterTest),
Module(new AtosConverterTest),
Module(new NastiMemoryDemuxTest),
Module(new HastiTest))
val s_idle :: s_start :: s_wait :: Nil = Enum(Bits(), 3)
val state = Reg(init = s_idle)
when (state === s_idle) { state := s_start }
when (state === s_start) { state := s_wait }
io.status.timeout.valid := Bool(false)
tests.zipWithIndex.foreach { case (mod, i) =>
mod.io.start := (state === s_start)
val timeout = Timer(1000, mod.io.start, mod.io.finished)
assert(!timeout, s"UnitTest $i timed out")
when (timeout) {
io.status.timeout.valid := Bool(true)
io.status.timeout.bits := UInt(i)
}
}
io.status.finished := tests.map(_.io.finished).reduce(_ && _)
io.status.error.valid := Bool(false)
}

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package groundtest.unittests
import Chisel._
import junctions._
import cde.Parameters
class HastiTest(implicit p: Parameters) extends UnitTest {
val sram = Module(new HastiTestSRAM(8))
val bus = Module(new HastiBus(Seq(a => Bool(true))))
val conv = Module(new HastiMasterIONastiIOConverter)
val driver = Module(new MemoryTestDriver("HastiTest", 32, 8, 2))
bus.io.slaves(0) <> sram.io
bus.io.master <> conv.io.hasti
conv.io.nasti <> driver.io.nasti
io.finished := driver.io.finished
driver.io.start := io.start
}

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groundtest/src/main/scala/unittests/MultiWidthFifoTest.scala Normal file
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package groundtest.unittests
import Chisel._
import junctions._
import junctions.NastiConstants._
class MultiWidthFifoTest extends UnitTest {
val big2little = Module(new MultiWidthFifo(16, 8, 8))
val little2big = Module(new MultiWidthFifo(8, 16, 4))
val bl_send = Reg(init = Bool(false))
val lb_send = Reg(init = Bool(false))
val bl_recv = Reg(init = Bool(false))
val lb_recv = Reg(init = Bool(false))
val bl_finished = Reg(init = Bool(false))
val lb_finished = Reg(init = Bool(false))
val bl_data = Vec.tabulate(4){i => UInt((2 * i + 1) * 256 + 2 * i, 16)}
val lb_data = Vec.tabulate(8){i => UInt(i, 8)}
val (bl_send_cnt, bl_send_done) = Counter(big2little.io.in.fire(), 4)
val (lb_send_cnt, lb_send_done) = Counter(little2big.io.in.fire(), 8)
val (bl_recv_cnt, bl_recv_done) = Counter(big2little.io.out.fire(), 8)
val (lb_recv_cnt, lb_recv_done) = Counter(little2big.io.out.fire(), 4)
big2little.io.in.valid := bl_send
big2little.io.in.bits := bl_data(bl_send_cnt)
big2little.io.out.ready := bl_recv
little2big.io.in.valid := lb_send
little2big.io.in.bits := lb_data(lb_send_cnt)
little2big.io.out.ready := lb_recv
val bl_recv_data_idx = bl_recv_cnt >> UInt(1)
val bl_recv_data = Mux(bl_recv_cnt(0),
bl_data(bl_recv_data_idx)(15, 8),
bl_data(bl_recv_data_idx)(7, 0))
val lb_recv_data = Cat(
lb_data(Cat(lb_recv_cnt, UInt(1, 1))),
lb_data(Cat(lb_recv_cnt, UInt(0, 1))))
when (io.start) {
bl_send := Bool(true)
lb_send := Bool(true)
}
when (bl_send_done) {
bl_send := Bool(false)
bl_recv := Bool(true)
}
when (lb_send_done) {
lb_send := Bool(false)
lb_recv := Bool(true)
}
when (bl_recv_done) {
bl_recv := Bool(false)
bl_finished := Bool(true)
}
when (lb_recv_done) {
lb_recv := Bool(false)
lb_finished := Bool(true)
}
io.finished := bl_finished && lb_finished
val bl_start_recv = Reg(next = bl_send_done)
val lb_start_recv = Reg(next = lb_send_done)
assert(!little2big.io.out.valid || little2big.io.out.bits === lb_recv_data,
"Little to Big data mismatch")
assert(!big2little.io.out.valid || big2little.io.out.bits === bl_recv_data,
"Bit to Little data mismatch")
assert(!lb_start_recv || little2big.io.count === UInt(4),
"Little to Big count incorrect")
assert(!bl_start_recv || big2little.io.count === UInt(8),
"Big to Little count incorrect")
}

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groundtest/src/main/scala/unittests/NastiDemuxTest.scala Normal file
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package groundtest.unittests
import Chisel._
import junctions._
import junctions.NastiConstants._
import cde.Parameters
class NastiDemuxDriver(n: Int)(implicit p: Parameters) extends Module {
val io = new Bundle {
val start = Bool(INPUT)
val finished = Bool(OUTPUT)
val nasti = new NastiIO
val select = UInt(OUTPUT, log2Up(n))
}
val (s_idle :: s_write_addr :: s_write_data :: s_write_resp ::
s_read_addr :: s_read_resp :: s_done :: Nil) = Enum(Bits(), 7)
val state = Reg(init = s_idle)
val select = Reg(init = UInt(0, log2Up(n)))
when (state === s_idle && io.start) { state := s_write_addr }
when (io.nasti.aw.fire()) { state := s_write_data }
when (io.nasti.w.fire()) { state := s_write_resp }
when (io.nasti.b.fire()) { state := s_read_addr }
when (io.nasti.ar.fire()) { state := s_read_resp }
when (io.nasti.r.fire()) {
when (select === UInt(n - 1)) {
state := s_done
} .otherwise {
select := select + UInt(1)
state := s_write_addr
}
}
io.nasti.aw.valid := (state === s_write_addr)
io.nasti.aw.bits := NastiWriteAddressChannel(
id = UInt(0),
addr = UInt(0),
size = UInt("b011"))
io.nasti.w.valid := (state === s_write_data)
io.nasti.w.bits := NastiWriteDataChannel(data = select)
io.nasti.b.ready := (state === s_write_resp)
io.nasti.ar.valid := (state === s_read_addr)
io.nasti.ar.bits := NastiReadAddressChannel(
id = UInt(0),
addr = UInt(0),
size = UInt("b011"))
io.nasti.r.ready := (state === s_read_resp)
io.finished := (state === s_done)
io.select := select
assert(!io.nasti.r.valid || io.nasti.r.bits.data === select,
"NASTI DeMux test: Read data did not match")
}
class NastiDemuxSlave(implicit p: Parameters) extends NastiModule()(p) {
val io = (new NastiIO).flip
val (s_write_wait :: s_write_data :: s_write_resp ::
s_read_wait :: s_read_resp :: s_done :: Nil) = Enum(Bits(), 6)
val state = Reg(init = s_write_wait)
val value = Reg(UInt(width = 64))
val id = Reg(UInt(width = nastiXIdBits))
when (io.aw.fire()) {
id := io.aw.bits.id
state := s_write_data
}
when (io.w.fire()) {
value := io.w.bits.data
state := s_write_resp
}
when (io.b.fire()) { state := s_read_wait }
when (io.ar.fire()) {
id := io.ar.bits.id
state := s_read_resp
}
when (io.r.fire()) { state := s_done }
io.aw.ready := (state === s_write_wait)
io.w.ready := (state === s_write_data)
io.b.valid := (state === s_write_resp)
io.b.bits := NastiWriteResponseChannel(id = id)
io.ar.ready := (state === s_read_wait)
io.r.valid := (state === s_read_resp)
io.r.bits := NastiReadDataChannel(id = id, data = value)
}
class NastiMemoryDemuxTest(implicit p: Parameters) extends UnitTest {
val nSlaves = 4
val driver = Module(new NastiDemuxDriver(nSlaves))
driver.io.start := io.start
io.finished := driver.io.finished
val demux = Module(new NastiMemoryDemux(nSlaves))
demux.io.master <> driver.io.nasti
demux.io.select := driver.io.select
for (i <- 0 until nSlaves) {
val slave = Module(new NastiDemuxSlave)
slave.io <> demux.io.slaves(i)
}
}

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package groundtest.unittests
import Chisel._
import junctions._
import junctions.NastiConstants._
import uncore.tilelink._
import uncore.converters._
import uncore.constants._
import cde.Parameters
class TileLinkToSmiConverterTestDriver(implicit p: Parameters) extends Module {
val io = new Bundle {
val mem = new ClientUncachedTileLinkIO
val start = Bool(INPUT)
val finished = Bool(OUTPUT)
}
val nChecks = 32
val count = Reg(init = UInt(0, log2Up(nChecks)))
val addr = Cat(count, UInt(0, 2))
val data = Fill(4, count)
val (s_idle :: s_wreq :: s_wresp :: s_rreq :: s_rresp ::
s_finished :: Nil) = Enum(Bits(), 6)
val state = Reg(init = s_idle)
when (state === s_idle && io.start) { state := s_wreq }
when (state === s_wreq && io.mem.acquire.ready) { state := s_wresp }
when (state === s_wresp && io.mem.grant.valid) {
count := count + UInt(1)
when (count === UInt(nChecks - 1)) {
state := s_rreq
} .otherwise {
state := s_wreq
}
}
when (state === s_rreq && io.mem.acquire.ready) { state := s_rresp }
when (state === s_rresp && io.mem.grant.valid) {
count := count + UInt(1)
when (count === UInt(nChecks - 1)) {
state := s_finished
} .otherwise {
state := s_rreq
}
}
val blockOffsetBits = p(CacheBlockOffsetBits)
val byteAddrBits = log2Up(p(TLKey(p(TLId))).writeMaskBits)
io.mem.acquire.valid := (state === s_wreq) || (state === s_rreq)
io.mem.acquire.bits := Mux(state === s_wreq,
Put(
client_xact_id = UInt(0),
addr_block = addr >> UInt(blockOffsetBits),
addr_beat = addr(blockOffsetBits - 1, byteAddrBits),
data = Mux(count(0), data << UInt(32), data),
wmask = Some(FillInterleaved(4, UIntToOH(count(0))))),
Get(
client_xact_id = UInt(0),
addr_block = addr >> UInt(blockOffsetBits),
addr_beat = addr(blockOffsetBits - 1, byteAddrBits),
addr_byte = addr(byteAddrBits - 1, 0),
operand_size = MT_W,
alloc = Bool(false)))
io.mem.grant.ready := (state === s_wresp) || (state === s_rresp)
assert(!io.mem.grant.valid || !io.mem.grant.bits.hasData() ||
Mux(count(0),
io.mem.grant.bits.data(63, 32) === data,
io.mem.grant.bits.data(31, 0) === data),
"Test Driver got incorrect data")
io.finished := (state === s_finished)
}
class TileLinkToSmiConverterTest(implicit p: Parameters) extends UnitTest {
val outermostParams = p.alterPartial({ case TLId => "Outermost" })
val smimem = Module(new SmiMem(32, 64))
val conv = Module(new SmiIOTileLinkIOConverter(32, 6)(outermostParams))
val driver = Module(new TileLinkToSmiConverterTestDriver()(outermostParams))
conv.io.tl <> driver.io.mem
smimem.io <> conv.io.smi
driver.io.start := io.start
io.finished := driver.io.finished
}