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