1
0
rocket-chip/src/main/scala/DirectGroundTest.scala

68 lines
2.1 KiB
Scala

package rocketchip
import Chisel._
import cde.{Parameters, Field}
import groundtest._
import uncore.tilelink._
import uncore.agents._
case object ExportGroundTestStatus extends Field[Boolean]
class DirectGroundTestTop(topParams: Parameters) extends Module
with HasTopLevelParameters {
implicit val p = topParams
val io = new TopIO {
// Need to export this for FPGA testing, but not for simulator
val status = if (p(ExportGroundTestStatus)) Some(new GroundTestStatus) else None
}
// Not using the debug
io.debug.req.ready := Bool(false)
io.debug.resp.valid := Bool(false)
require(io.mmio_axi.isEmpty && io.mmio_ahb.isEmpty && io.mmio_tl.isEmpty)
require(io.mem_ahb.isEmpty && io.mem_tl.isEmpty)
require(nMemChannels == 1)
require(nTiles == 1)
val test = p(BuildGroundTest)(outermostParams.alterPartial({
case GroundTestId => 0
case CacheName => "L1D"
}))
require(test.io.cache.size == 0)
require(test.io.mem.size == nBanksPerMemChannel)
require(test.io.ptw.size == 0)
when (test.io.status.finished) { stop() }
val mem_ic = Module(new TileLinkMemoryInterconnect(
nBanksPerMemChannel, nMemChannels)(outermostParams))
mem_ic.io.in <> test.io.mem
io.mem_axi.zip(mem_ic.io.out).foreach { case (nasti, tl) =>
TopUtils.connectTilelinkNasti(nasti, tl)(outermostParams)
}
io.status.map { status =>
val s_running :: s_finished :: s_errored :: s_timeout :: Nil = Enum(Bits(), 4)
val state = Reg(init = s_running)
val error_code = Reg(status.error.bits)
val timeout_code = Reg(status.timeout.bits)
when (state === s_running) {
when (test.io.status.finished) { state := s_finished }
when (test.io.status.error.valid) {
state := s_errored
error_code := test.io.status.error.bits
}
when (test.io.status.timeout.valid) {
state := s_timeout
timeout_code := test.io.status.timeout.bits
}
}
status.finished := (state === s_finished)
status.error.valid := (state === s_errored)
status.error.bits := error_code
status.timeout.valid := (state === s_timeout)
status.timeout.bits := timeout_code
}
}