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[WIP] Generators for unittest and groundtest; disambiguate groundtest.TrafficGenerator

This commit is contained in:
Henry Cook 2016-09-22 14:57:18 -07:00
parent 47c5d1a992
commit 83c08a931d
7 changed files with 244 additions and 222 deletions
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2
regression/Makefile
View File

@ -52,7 +52,7 @@ endif
ifeq ($(SUITE),UnittestSuite)
PROJECT=unittest
CONFIGS=UnitTestConfig
CONFIGS=JunctionsUnitTestConfig, UncoreUnitTestConfig
endif
ifeq ($(SUITE), JtagDtmSuite)

16
src/main/scala/groundtest/Configs.scala
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@ -100,12 +100,6 @@ class WithGroundTest extends Config(
dataBits = site(CacheBlockBytes)*8)
}
case BuildTiles => {
val groundtest = if (site(XLen) == 64)
DefaultTestSuites.groundtest64
else
DefaultTestSuites.groundtest32
TestGeneration.addSuite(groundtest("p"))
TestGeneration.addSuite(DefaultTestSuites.emptyBmarks)
(0 until site(NTiles)).map { i =>
val tileSettings = site(GroundTestKey)(i)
(r: Bool, p: Parameters) => {
@ -163,7 +157,7 @@ class WithMemtest extends Config(
case GroundTestKey => Seq.fill(site(NTiles)) {
GroundTestTileSettings(1, 1)
}
case GeneratorKey => GeneratorParameters(
case GeneratorKey => TrafficGeneratorParameters(
maxRequests = 128,
startAddress = site(GlobalAddrMap)("mem").start)
case BuildGroundTest =>
@ -223,7 +217,7 @@ class WithNastiConverterTest extends Config(
case GroundTestKey => Seq.fill(site(NTiles)) {
GroundTestTileSettings(uncached = 1)
}
case GeneratorKey => GeneratorParameters(
case GeneratorKey => TrafficGeneratorParameters(
maxRequests = 128,
startAddress = site(GlobalAddrMap)("mem").start)
case BuildGroundTest =>
@ -238,7 +232,7 @@ class WithTraceGen extends Config(
}
case BuildGroundTest =>
(p: Parameters) => Module(new GroundTestTraceGenerator()(p))
case GeneratorKey => GeneratorParameters(
case GeneratorKey => TrafficGeneratorParameters(
maxRequests = 256,
startAddress = 0)
case AddressBag => {
@ -266,7 +260,7 @@ class WithPCIeMockupTest extends Config(
case GroundTestKey => Seq(
GroundTestTileSettings(1, 1),
GroundTestTileSettings(1))
case GeneratorKey => GeneratorParameters(
case GeneratorKey => TrafficGeneratorParameters(
maxRequests = 128,
startAddress = site(GlobalAddrMap)("mem").start)
case BuildGroundTest =>
@ -282,7 +276,7 @@ class WithDirectMemtest extends Config(
val nGens = 8
pname match {
case GroundTestKey => Seq(GroundTestTileSettings(uncached = nGens))
case GeneratorKey => GeneratorParameters(
case GeneratorKey => TrafficGeneratorParameters(
maxRequests = 1024,
startAddress = 0)
case BuildGroundTest =>

217
src/main/scala/groundtest/Generator.scala
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@ -1,213 +1,14 @@
// See LICENSE for license details.
package groundtest
import Chisel._
import uncore.tilelink._
import uncore.devices.NTiles
import uncore.constants._
import junctions._
import rocket._
import util.SimpleTimer
import scala.util.Random
import cde.{Parameters, Field}
import util.Generator
case class GeneratorParameters(
maxRequests: Int,
startAddress: BigInt)
case object GeneratorKey extends Field[GeneratorParameters]
trait HasGeneratorParameters extends HasGroundTestParameters {
implicit val p: Parameters
val genParams = p(GeneratorKey)
val nGens = p(GroundTestKey).map(
cs => cs.uncached + cs.cached).reduce(_ + _)
val genTimeout = 8192
val maxRequests = genParams.maxRequests
val startAddress = genParams.startAddress
val genWordBits = 32
val genWordBytes = genWordBits / 8
val wordOffset = log2Ceil(genWordBytes)
val wordSize = UInt(log2Ceil(genWordBytes))
require(startAddress % BigInt(genWordBytes) == 0)
}
class UncachedTileLinkGenerator(id: Int)
(implicit p: Parameters) extends TLModule()(p) with HasGeneratorParameters {
private val tlBlockOffset = tlBeatAddrBits + tlByteAddrBits
val io = new Bundle {
val mem = new ClientUncachedTileLinkIO
val status = new GroundTestStatus
}
val (s_start :: s_put :: s_get :: s_finished :: Nil) = Enum(Bits(), 4)
val state = Reg(init = s_start)
val (req_cnt, req_wrap) = Counter(io.mem.grant.fire(), maxRequests)
val sending = Reg(init = Bool(false))
when (state === s_start) {
sending := Bool(true)
state := s_put
}
when (io.mem.acquire.fire()) { sending := Bool(false) }
when (io.mem.grant.fire()) { sending := Bool(true) }
when (req_wrap) { state := Mux(state === s_put, s_get, s_finished) }
val timeout = SimpleTimer(genTimeout, io.mem.acquire.fire(), io.mem.grant.fire())
assert(!timeout, s"Uncached generator ${id} timed out waiting for grant")
io.status.finished := (state === s_finished)
io.status.timeout.valid := timeout
io.status.timeout.bits := UInt(id)
val part_of_full_addr =
if (log2Ceil(nGens) > 0) {
Cat(UInt(id, log2Ceil(nGens)),
UInt(0, wordOffset))
} else {
UInt(0, wordOffset)
}
val full_addr = UInt(startAddress) + Cat(req_cnt, part_of_full_addr)
val addr_block = full_addr >> UInt(tlBlockOffset)
val addr_beat = full_addr(tlBlockOffset - 1, tlByteAddrBits)
val addr_byte = full_addr(tlByteAddrBits - 1, 0)
val data_prefix = Cat(UInt(id, log2Up(nGens)), req_cnt)
val word_data = Wire(UInt(width = genWordBits))
word_data := Cat(data_prefix, part_of_full_addr)
val beat_data = Fill(tlDataBits / genWordBits, word_data)
val wshift = Cat(beatOffset(full_addr), UInt(0, wordOffset))
val wmask = Fill(genWordBits / 8, Bits(1, 1)) << wshift
val put_acquire = Put(
client_xact_id = UInt(0),
addr_block = addr_block,
addr_beat = addr_beat,
data = beat_data,
wmask = Some(wmask),
alloc = Bool(false))
val get_acquire = Get(
client_xact_id = UInt(0),
addr_block = addr_block,
addr_beat = addr_beat,
addr_byte = addr_byte,
operand_size = wordSize,
alloc = Bool(false))
io.mem.acquire.valid := sending && !io.status.finished
io.mem.acquire.bits := Mux(state === s_put, put_acquire, get_acquire)
io.mem.grant.ready := !sending && !io.status.finished
def wordFromBeat(addr: UInt, dat: UInt) = {
val shift = Cat(beatOffset(addr), UInt(0, wordOffset + 3))
(dat >> shift)(genWordBits - 1, 0)
}
val data_mismatch = io.mem.grant.fire() && state === s_get &&
wordFromBeat(full_addr, io.mem.grant.bits.data) =/= word_data
io.status.error.valid := data_mismatch
io.status.error.bits := UInt(id)
assert(!data_mismatch,
s"Get received incorrect data in uncached generator ${id}")
def beatOffset(addr: UInt) = // TODO zero-width
if (tlByteAddrBits > wordOffset) addr(tlByteAddrBits - 1, wordOffset)
else UInt(0)
}
class HellaCacheGenerator(id: Int)
(implicit p: Parameters) extends L1HellaCacheModule()(p) with HasGeneratorParameters {
val io = new Bundle {
val mem = new HellaCacheIO
val status = new GroundTestStatus
}
val timeout = SimpleTimer(genTimeout, io.mem.req.fire(), io.mem.resp.valid)
assert(!timeout, s"Cached generator ${id} timed out waiting for response")
io.status.timeout.valid := timeout
io.status.timeout.bits := UInt(id)
val (s_start :: s_write :: s_read :: s_finished :: Nil) = Enum(Bits(), 4)
val state = Reg(init = s_start)
val sending = Reg(init = Bool(false))
val (req_cnt, req_wrap) = Counter(io.mem.resp.valid, maxRequests)
val part_of_req_addr =
if (log2Ceil(nGens) > 0) {
Cat(UInt(id, log2Ceil(nGens)),
UInt(0, wordOffset))
} else {
UInt(0, wordOffset)
}
val req_addr = UInt(startAddress) + Cat(req_cnt, part_of_req_addr)
val req_data = Cat(UInt(id, log2Up(nGens)), req_cnt, part_of_req_addr)
io.mem.req.valid := sending && !io.status.finished
io.mem.req.bits.addr := req_addr
io.mem.req.bits.data := req_data
io.mem.req.bits.typ := wordSize
io.mem.req.bits.cmd := Mux(state === s_write, M_XWR, M_XRD)
io.mem.req.bits.tag := UInt(0)
when (state === s_start) { sending := Bool(true); state := s_write }
when (io.mem.req.fire()) { sending := Bool(false) }
when (io.mem.resp.valid) { sending := Bool(true) }
when (req_wrap) { state := Mux(state === s_write, s_read, s_finished) }
io.status.finished := (state === s_finished)
def data_match(recv: Bits, expected: Bits): Bool = {
val recv_resized = Wire(Bits(width = genWordBits))
val exp_resized = Wire(Bits(width = genWordBits))
recv_resized := recv
exp_resized := expected
recv_resized === exp_resized
}
val data_mismatch = io.mem.resp.valid && io.mem.resp.bits.has_data &&
!data_match(io.mem.resp.bits.data, req_data)
io.status.error.valid := data_mismatch
io.status.error.bits := UInt(id)
assert(!data_mismatch,
s"Received incorrect data in cached generator ${id}")
}
class GeneratorTest(implicit p: Parameters)
extends GroundTest()(p) with HasGeneratorParameters {
val idStart = p(GroundTestKey).take(p(TileId))
.map(settings => settings.cached + settings.uncached)
.foldLeft(0)(_ + _)
val cached = List.tabulate(nCached) { i =>
val realId = idStart + i
Module(new HellaCacheGenerator(realId))
}
val uncached = List.tabulate(nUncached) { i =>
val realId = idStart + nCached + i
Module(new UncachedTileLinkGenerator(realId))
}
io.cache <> cached.map(_.io.mem)
io.mem <> uncached.map(_.io.mem)
val gen_debug = cached.map(_.io.status) ++ uncached.map(_.io.status)
io.status := DebugCombiner(gen_debug)
object GroundtestGenerator extends Generator
{
val longName = names.topModuleProject + "." + names.configs
generateFirrtl
generateTestSuiteMakefrags // TODO: Needed only for legacy make targets
generateParameterDump // TODO: Needed only for legacy make targets
}

2
src/main/scala/groundtest/NastiTest.scala
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@ -12,7 +12,7 @@ class NastiGenerator(id: Int)(implicit val p: Parameters) extends Module
with HasNastiParameters
with HasMIFParameters
with HasAddrMapParameters
with HasGeneratorParameters {
with HasTrafficGeneratorParameters {
val io = new Bundle {
val status = new GroundTestStatus

213
src/main/scala/groundtest/TrafficGenerator.scala Normal file
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@ -0,0 +1,213 @@
package groundtest
import Chisel._
import uncore.tilelink._
import uncore.devices.NTiles
import uncore.constants._
import junctions._
import rocket._
import util.SimpleTimer
import scala.util.Random
import cde.{Parameters, Field}
case class TrafficGeneratorParameters(
maxRequests: Int,
startAddress: BigInt)
case object GeneratorKey extends Field[TrafficGeneratorParameters]
trait HasTrafficGeneratorParameters extends HasGroundTestParameters {
implicit val p: Parameters
val genParams = p(GeneratorKey)
val nGens = p(GroundTestKey).map(
cs => cs.uncached + cs.cached).reduce(_ + _)
val genTimeout = 8192
val maxRequests = genParams.maxRequests
val startAddress = genParams.startAddress
val genWordBits = 32
val genWordBytes = genWordBits / 8
val wordOffset = log2Ceil(genWordBytes)
val wordSize = UInt(log2Ceil(genWordBytes))
require(startAddress % BigInt(genWordBytes) == 0)
}
class UncachedTileLinkGenerator(id: Int)
(implicit p: Parameters) extends TLModule()(p) with HasTrafficGeneratorParameters {
private val tlBlockOffset = tlBeatAddrBits + tlByteAddrBits
val io = new Bundle {
val mem = new ClientUncachedTileLinkIO
val status = new GroundTestStatus
}
val (s_start :: s_put :: s_get :: s_finished :: Nil) = Enum(Bits(), 4)
val state = Reg(init = s_start)
val (req_cnt, req_wrap) = Counter(io.mem.grant.fire(), maxRequests)
val sending = Reg(init = Bool(false))
when (state === s_start) {
sending := Bool(true)
state := s_put
}
when (io.mem.acquire.fire()) { sending := Bool(false) }
when (io.mem.grant.fire()) { sending := Bool(true) }
when (req_wrap) { state := Mux(state === s_put, s_get, s_finished) }
val timeout = SimpleTimer(genTimeout, io.mem.acquire.fire(), io.mem.grant.fire())
assert(!timeout, s"Uncached generator ${id} timed out waiting for grant")
io.status.finished := (state === s_finished)
io.status.timeout.valid := timeout
io.status.timeout.bits := UInt(id)
val part_of_full_addr =
if (log2Ceil(nGens) > 0) {
Cat(UInt(id, log2Ceil(nGens)),
UInt(0, wordOffset))
} else {
UInt(0, wordOffset)
}
val full_addr = UInt(startAddress) + Cat(req_cnt, part_of_full_addr)
val addr_block = full_addr >> UInt(tlBlockOffset)
val addr_beat = full_addr(tlBlockOffset - 1, tlByteAddrBits)
val addr_byte = full_addr(tlByteAddrBits - 1, 0)
val data_prefix = Cat(UInt(id, log2Up(nGens)), req_cnt)
val word_data = Wire(UInt(width = genWordBits))
word_data := Cat(data_prefix, part_of_full_addr)
val beat_data = Fill(tlDataBits / genWordBits, word_data)
val wshift = Cat(beatOffset(full_addr), UInt(0, wordOffset))
val wmask = Fill(genWordBits / 8, Bits(1, 1)) << wshift
val put_acquire = Put(
client_xact_id = UInt(0),
addr_block = addr_block,
addr_beat = addr_beat,
data = beat_data,
wmask = Some(wmask),
alloc = Bool(false))
val get_acquire = Get(
client_xact_id = UInt(0),
addr_block = addr_block,
addr_beat = addr_beat,
addr_byte = addr_byte,
operand_size = wordSize,
alloc = Bool(false))
io.mem.acquire.valid := sending && !io.status.finished
io.mem.acquire.bits := Mux(state === s_put, put_acquire, get_acquire)
io.mem.grant.ready := !sending && !io.status.finished
def wordFromBeat(addr: UInt, dat: UInt) = {
val shift = Cat(beatOffset(addr), UInt(0, wordOffset + 3))
(dat >> shift)(genWordBits - 1, 0)
}
val data_mismatch = io.mem.grant.fire() && state === s_get &&
wordFromBeat(full_addr, io.mem.grant.bits.data) =/= word_data
io.status.error.valid := data_mismatch
io.status.error.bits := UInt(id)
assert(!data_mismatch,
s"Get received incorrect data in uncached generator ${id}")
def beatOffset(addr: UInt) = // TODO zero-width
if (tlByteAddrBits > wordOffset) addr(tlByteAddrBits - 1, wordOffset)
else UInt(0)
}
class HellaCacheGenerator(id: Int)
(implicit p: Parameters) extends L1HellaCacheModule()(p) with HasTrafficGeneratorParameters {
val io = new Bundle {
val mem = new HellaCacheIO
val status = new GroundTestStatus
}
val timeout = SimpleTimer(genTimeout, io.mem.req.fire(), io.mem.resp.valid)
assert(!timeout, s"Cached generator ${id} timed out waiting for response")
io.status.timeout.valid := timeout
io.status.timeout.bits := UInt(id)
val (s_start :: s_write :: s_read :: s_finished :: Nil) = Enum(Bits(), 4)
val state = Reg(init = s_start)
val sending = Reg(init = Bool(false))
val (req_cnt, req_wrap) = Counter(io.mem.resp.valid, maxRequests)
val part_of_req_addr =
if (log2Ceil(nGens) > 0) {
Cat(UInt(id, log2Ceil(nGens)),
UInt(0, wordOffset))
} else {
UInt(0, wordOffset)
}
val req_addr = UInt(startAddress) + Cat(req_cnt, part_of_req_addr)
val req_data = Cat(UInt(id, log2Up(nGens)), req_cnt, part_of_req_addr)
io.mem.req.valid := sending && !io.status.finished
io.mem.req.bits.addr := req_addr
io.mem.req.bits.data := req_data
io.mem.req.bits.typ := wordSize
io.mem.req.bits.cmd := Mux(state === s_write, M_XWR, M_XRD)
io.mem.req.bits.tag := UInt(0)
when (state === s_start) { sending := Bool(true); state := s_write }
when (io.mem.req.fire()) { sending := Bool(false) }
when (io.mem.resp.valid) { sending := Bool(true) }
when (req_wrap) { state := Mux(state === s_write, s_read, s_finished) }
io.status.finished := (state === s_finished)
def data_match(recv: Bits, expected: Bits): Bool = {
val recv_resized = Wire(Bits(width = genWordBits))
val exp_resized = Wire(Bits(width = genWordBits))
recv_resized := recv
exp_resized := expected
recv_resized === exp_resized
}
val data_mismatch = io.mem.resp.valid && io.mem.resp.bits.has_data &&
!data_match(io.mem.resp.bits.data, req_data)
io.status.error.valid := data_mismatch
io.status.error.bits := UInt(id)
assert(!data_mismatch,
s"Received incorrect data in cached generator ${id}")
}
class GeneratorTest(implicit p: Parameters)
extends GroundTest()(p) with HasTrafficGeneratorParameters {
val idStart = p(GroundTestKey).take(p(TileId))
.map(settings => settings.cached + settings.uncached)
.foldLeft(0)(_ + _)
val cached = List.tabulate(nCached) { i =>
val realId = idStart + i
Module(new HellaCacheGenerator(realId))
}
val uncached = List.tabulate(nUncached) { i =>
val realId = idStart + nCached + i
Module(new UncachedTileLinkGenerator(realId))
}
io.cache <> cached.map(_.io.mem)
io.mem <> uncached.map(_.io.mem)
val gen_debug = cached.map(_.io.status) ++ uncached.map(_.io.status)
io.status := DebugCombiner(gen_debug)
}

2
src/main/scala/rocketchip/Generator.scala
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@ -7,7 +7,7 @@ import rocket.{XLen, UseVM, UseAtomics, UseCompressed, FPUKey}
import util.Generator
import scala.collection.mutable.LinkedHashSet
/** An example Generator */
/** A Generator for platforms containing Rocket Coreplexes */
object RocketChipGenerator extends Generator
{
val rv64RegrTestNames = LinkedHashSet(

14
src/main/scala/unittest/Generator.scala Normal file
View File

@ -0,0 +1,14 @@
// See LICENSE for license details.
package unittest
import Chisel._
import util.Generator
object UnitTestGenerator extends Generator
{
val longName = names.topModuleProject + "." + names.configs
generateFirrtl
generateTestSuiteMakefrags // TODO: Needed only for legacy make targets
generateParameterDump // TODO: Needed only for legacy make targets
}