TLB: determine RWX from TL2 properties directly
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@ -123,7 +123,7 @@ class DCacheModule(outer: DCache)(implicit p: Parameters) extends HellaCacheModu
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require(nWays == 1)
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metaWriteArb.io.out.ready := true
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metaReadArb.io.out.ready := !metaWriteArb.io.out.valid
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val inScratchpad = addrMap(s"TL2:dmem${p(TileId)}").containsAddress(s1_paddr)
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val inScratchpad = Bool(false) // !!! addrMap(s"TL2:dmem${p(TileId)}").containsAddress(s1_paddr)
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val hitState = Mux(inScratchpad, ClientMetadata.maximum, ClientMetadata.onReset)
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(inScratchpad, hitState, L1Metadata(UInt(0), ClientMetadata.onReset))
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} else {
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@ -145,7 +145,6 @@ class HellaCacheModule(outer: HellaCache)(implicit val p: Parameters) extends La
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with HasL1HellaCacheParameters {
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implicit val cfg = outer.cfg
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val io = new HellaCacheBundle(outer)
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val edge = outer.node.edgesOut(0)
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val tl_out = io.mem(0)
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/* TODO
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@ -8,7 +8,6 @@ import config._
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import uncore.devices._
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import util._
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import Chisel.ImplicitConversions._
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import junctions.AddrMap
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class MStatus extends Bundle {
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// not truly part of mstatus, but convenient
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@ -6,7 +6,7 @@ import Chisel._
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import uncore.devices._
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import uncore.agents.CacheName
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import uncore.constants._
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import junctions.HasAddrMapParameters
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import uncore.tilelink2._
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import util._
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import Chisel.ImplicitConversions._
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import config._
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@ -32,12 +32,14 @@ case object NBreakpoints extends Field[Int]
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case object NPerfCounters extends Field[Int]
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case object NPerfEvents extends Field[Int]
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case object DataScratchpadSize extends Field[Int]
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case object TLCacheEdge extends Field[TLEdgeOut]
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trait HasCoreParameters extends HasAddrMapParameters {
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trait HasCoreParameters {
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implicit val p: Parameters
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val xLen = p(XLen)
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val fLen = xLen // TODO relax this
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val edge = p(TLCacheEdge)
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val usingVM = p(UseVM)
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val usingUser = p(UseUser) || usingVM
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val usingDebug = p(UseDebug)
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@ -67,6 +69,7 @@ trait HasCoreParameters extends HasAddrMapParameters {
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def pgIdxBits = 12
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def pgLevelBits = 10 - log2Ceil(xLen / 32)
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def vaddrBits = pgIdxBits + pgLevels * pgLevelBits
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val paddrBits = edge.bundle.addressBits
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def ppnBits = paddrBits - pgIdxBits
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def vpnBits = vaddrBits - pgIdxBits
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val pgLevels = p(PgLevels)
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@ -24,12 +24,15 @@ case class RoccParameters(
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useFPU: Boolean = false)
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class RocketTile(tileId: Int)(implicit p: Parameters) extends LazyModule {
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val dcacheParams = p.alterPartial({
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val coreParams = p.alterPartial {
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case TLCacheEdge => cachedOut.edgesOut(0)
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}
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val dcacheParams = coreParams.alterPartial({
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case CacheName => CacheName("L1D")
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case TLId => "L1toL2"
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case TileId => tileId // TODO using this messes with Heirarchical P&R: change to io.hartid?
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})
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val icacheParams = p.alterPartial({
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val icacheParams = coreParams.alterPartial({
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case CacheName => CacheName("L1I")
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case TLId => "L1toL2"
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})
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@ -54,7 +57,7 @@ class RocketTile(tileId: Int)(implicit p: Parameters) extends LazyModule {
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val uncached = uncachedOut.bundleOut
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val slave = slaveNode.map(_.bundleIn)
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val hartid = UInt(INPUT, p(XLen))
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val interrupts = new TileInterrupts().asInput
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val interrupts = new TileInterrupts()(coreParams).asInput
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val resetVector = UInt(INPUT, p(XLen))
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}
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@ -74,15 +77,15 @@ class RocketTile(tileId: Int)(implicit p: Parameters) extends LazyModule {
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icache.io.cpu <> core.io.imem
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icache.io.resetVector := io.resetVector
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val fpuOpt = p(FPUKey).map(cfg => Module(new FPU(cfg)))
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val fpuOpt = p(FPUKey).map(cfg => Module(new FPU(cfg)(coreParams)))
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fpuOpt.foreach(fpu => core.io.fpu <> fpu.io)
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if (usingRocc) {
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val respArb = Module(new RRArbiter(new RoCCResponse, nRocc))
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val respArb = Module(new RRArbiter(new RoCCResponse()(coreParams), nRocc))
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core.io.rocc.resp <> respArb.io.out
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val roccOpcodes = buildRocc.map(_.opcodes)
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val cmdRouter = Module(new RoccCommandRouter(roccOpcodes))
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val cmdRouter = Module(new RoccCommandRouter(roccOpcodes)(coreParams))
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cmdRouter.io.in <> core.io.rocc.cmd
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val roccs = buildRocc.zipWithIndex.map { case (accelParams, i) =>
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@ -101,7 +104,7 @@ class RocketTile(tileId: Int)(implicit p: Parameters) extends LazyModule {
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if (nFPUPorts > 0) {
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fpuOpt.foreach { fpu =>
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val fpArb = Module(new InOrderArbiter(new FPInput, new FPResult, nFPUPorts))
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val fpArb = Module(new InOrderArbiter(new FPInput()(coreParams), new FPResult()(coreParams), nFPUPorts))
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val fp_roccs = roccs.zip(buildRocc)
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.filter { case (_, params) => params.useFPU }
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.map { case (rocc, _) => rocc.io }
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@ -5,17 +5,19 @@ package rocket
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import Chisel._
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import util._
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import Chisel.ImplicitConversions._
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import junctions._
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import scala.math._
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import config._
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import diplomacy._
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import uncore.agents._
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import uncore.coherence._
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import uncore.tilelink2._
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case object PgLevels extends Field[Int]
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case object ASIdBits extends Field[Int]
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trait HasTLBParameters extends HasCoreParameters {
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val entries = p(p(CacheName)).nTLBEntries
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val cacheBlockBytes = p(CacheBlockBytes)
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val camAddrBits = log2Ceil(entries)
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val camTagBits = asIdBits + vpnBits
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}
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@ -64,14 +66,22 @@ class TLB(implicit val p: Parameters) extends Module with HasTLBParameters {
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val refill_ppn = io.ptw.resp.bits.pte.ppn(ppnBits-1, 0)
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val do_refill = Bool(usingVM) && io.ptw.resp.valid
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val mpu_ppn = Mux(do_refill, refill_ppn, passthrough_ppn)
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val prot = addrMap.getProt(mpu_ppn << pgIdxBits)
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val cacheable = addrMap.isCacheable(mpu_ppn << pgIdxBits)
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def pgaligned(r: MemRegion) = {
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val pgsize = 1 << pgIdxBits
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(r.start % pgsize) == 0 && (r.size % pgsize) == 0
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def fastCheck(member: TLManagerParameters => Boolean) =
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Mux1H(edge.manager.findFast(mpu_ppn << pgIdxBits), edge.manager.managers.map(m => Bool(member(m))))
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val prot_r = fastCheck(_.supportsGet)
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val prot_w = fastCheck(_.supportsPutFull)
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val prot_x = fastCheck(_.executable)
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val cacheable = fastCheck(_.supportsAcquire)
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val allSizes = TransferSizes(1, cacheBlockBytes)
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val amoSizes = TransferSizes(1, xLen/8)
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edge.manager.managers.foreach { m =>
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require (m.minAlignment >= 4096, s"MemoryMap region ${m.name} must be page-aligned (is ${m.minAlignment})")
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require (!m.supportsGet || m.supportsGet .contains(allSizes), s"MemoryMap region ${m.name} only supports ${m.supportsGet} Get, but must support ${allSizes}")
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require (!m.supportsPutFull || m.supportsPutFull.contains(allSizes), s"MemoryMap region ${m.name} only supports ${m.supportsPutFull} PutFull, but must support ${allSizes}")
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require (!m.supportsAcquire || m.supportsAcquire.contains(allSizes), s"MemoryMap region ${m.name} only supports ${m.supportsAcquire} Acquire, but must support ${allSizes}")
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require (!m.supportsLogical || m.supportsLogical.contains(amoSizes), s"MemoryMap region ${m.name} only supports ${m.supportsLogical} Logical, but must support ${amoSizes}")
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require (!m.supportsArithmetic || m.supportsArithmetic.contains(amoSizes), s"MemoryMap region ${m.name} only supports ${m.supportsArithmetic} Arithmetic, but must support ${amoSizes}")
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}
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require(addrMap.flatten.forall(e => pgaligned(e.region)),
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"MemoryMap regions must be page-aligned")
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val lookup_tag = Cat(io.ptw.ptbr.asid, io.req.bits.vpn(vpnBits-1,0))
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val vm_enabled = Bool(usingVM) && io.ptw.status.vm(3) && priv_uses_vm && !io.req.bits.passthrough
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@ -95,10 +105,10 @@ class TLB(implicit val p: Parameters) extends Module with HasTLBParameters {
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val mask = UIntToOH(r_refill_waddr)
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valid := valid | mask
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u_array := Mux(pte.u, u_array | mask, u_array & ~mask)
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sw_array := Mux(pte.sw() && prot.w, sw_array | mask, sw_array & ~mask)
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sx_array := Mux(pte.sx() && prot.x, sx_array | mask, sx_array & ~mask)
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sr_array := Mux(pte.sr() && prot.r, sr_array | mask, sr_array & ~mask)
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xr_array := Mux(pte.sx() && prot.r, xr_array | mask, xr_array & ~mask)
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sw_array := Mux(pte.sw() && prot_w, sw_array | mask, sw_array & ~mask)
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sx_array := Mux(pte.sx() && prot_x, sx_array | mask, sx_array & ~mask)
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sr_array := Mux(pte.sr() && prot_r, sr_array | mask, sr_array & ~mask)
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xr_array := Mux(pte.sx() && prot_r, xr_array | mask, xr_array & ~mask)
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cash_array := Mux(cacheable, cash_array | mask, cash_array & ~mask)
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dirty_array := Mux(pte.d, dirty_array | mask, dirty_array & ~mask)
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}
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@ -107,9 +117,9 @@ class TLB(implicit val p: Parameters) extends Module with HasTLBParameters {
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val repl_waddr = Mux(!valid.andR, PriorityEncoder(~valid), plru.replace)
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val priv_ok = Mux(priv_s, ~Mux(io.ptw.status.pum, u_array, UInt(0)), u_array)
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val w_array = Cat(prot.w, priv_ok & sw_array)
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val x_array = Cat(prot.x, priv_ok & sx_array)
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val r_array = Cat(prot.r, priv_ok & (sr_array | Mux(io.ptw.status.mxr, xr_array, UInt(0))))
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val w_array = Cat(prot_w, priv_ok & sw_array)
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val x_array = Cat(prot_x, priv_ok & sx_array)
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val r_array = Cat(prot_r, priv_ok & (sr_array | Mux(io.ptw.status.mxr, xr_array, UInt(0))))
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val c_array = Cat(cacheable, cash_array)
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val bad_va =
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