c

vexiiriscv.memory

MmuPlugin

class MmuPlugin extends FiberPlugin with AddressTranslationService

Implement the RISC-V MMU using a N-way set associative TLB storage. This fit very well with FPGA which have distributed memories. For FPGA that do not have that, the MmuPortParameter can be configured to have a low number of sets or use 1 cycle delay to be inferable as block ram.

Plugins which uses the MmuPlugin can request TLB storage, then they can require the MmuPlugin to bind a new port on a existing pipeline using that TLB storage. A given TLB storage can be used by multiple MMU ports.

MMU miss will not by itself trigger a TLB refill. This is instead triggered by the TrapPlugin.

Linear Supertypes
AddressTranslationService, FiberPlugin, Hostable, Area, OverridedEqualsHashCode, ValCallbackRec, ValCallback, NameableByComponent, Nameable, ContextUser, ScalaLocated, GlobalDataUser, OwnableRef, AnyRef, Any
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  2. By Inheritance
Inherited
  1. MmuPlugin
  2. AddressTranslationService
  3. FiberPlugin
  4. Hostable
  5. Area
  6. OverridedEqualsHashCode
  7. ValCallbackRec
  8. ValCallback
  9. NameableByComponent
  10. Nameable
  11. ContextUser
  12. ScalaLocated
  13. GlobalDataUser
  14. OwnableRef
  15. AnyRef
  16. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new MmuPlugin(spec: MmuSpec, physicalWidth: Int)

Type Members

  1. case class PortSpec(stages: Seq[NodeBaseApi], preAddress: Payload[UInt], forcePhysical: Payload[Bool], usage: AddressTranslationPortUsage, pp: MmuPortParameter, ss: StorageSpec, rsp: AddressTranslationRsp) extends Product with Serializable
  2. abstract type RefOwnerType
    Definition Classes
    OwnableRef
  3. case class StorageSpec(p: MmuStorageParameter, pmuEventId: Int) extends Nameable with Product with Serializable

Value Members

  1. val _context: Capture
    Definition Classes
    Area
  2. def addService[T](that: T): T
    Definition Classes
    FiberPlugin
  3. val api: Handle[Area { ... /* 2 definitions in type refinement */ }]
  4. def awaitBuild(): Unit
    Definition Classes
    FiberPlugin
  5. def buildBefore(l: ⇒ Lock): Unit
    Definition Classes
    FiberPlugin
  6. var buildCount: Int
    Definition Classes
    FiberPlugin
  7. def childNamePriority: Byte
    Definition Classes
    Area
  8. def component: Component
    Definition Classes
    ContextUser
  9. def during: AnyRef { ... /* 2 definitions in type refinement */ }
    Definition Classes
    FiberPlugin
  10. def equals(obj: Any): Boolean
    Definition Classes
    OverridedEqualsHashCode → AnyRef → Any
  11. def foreachReflectableNameables(doThat: (Any) ⇒ Unit): Unit
    Definition Classes
    Nameable
  12. def getDisplayName(): String
    Definition Classes
    Nameable
  13. def getInstanceCounter: Int
    Definition Classes
    ContextUser
  14. def getName(default: String): String
    Definition Classes
    NameableByComponent → Nameable
  15. def getName(): String
    Definition Classes
    NameableByComponent → Nameable
  16. def getPartialName(): String
    Definition Classes
    Nameable
  17. def getPath(from: Component, to: Component): Seq[Component]
    Definition Classes
    NameableByComponent
  18. def getRefOwnersChain(): List[Any]
    Definition Classes
    OwnableRef
  19. def getScalaLocationLong: String
    Definition Classes
    ScalaLocated
  20. def getScalaLocationShort: String
    Definition Classes
    ScalaLocated
  21. def getScalaTrace(): Throwable
    Definition Classes
    ScalaLocated
  22. def getSignExtension(kind: AddressTranslationPortUsage, rawAddress: UInt): Bool
    Definition Classes
    MmuPlugin → AddressTranslationService
  23. def getStorageId(s: Any): Int
    Definition Classes
    MmuPlugin → AddressTranslationService
  24. def getStorageIdWidth(): Int
    Definition Classes
    MmuPlugin → AddressTranslationService
  25. val globalData: GlobalData
    Definition Classes
    GlobalDataUser
  26. def hashCode(): Int
    Definition Classes
    OverridedEqualsHashCode → AnyRef → Any
  27. var host: PluginHost
    Definition Classes
    FiberPlugin
  28. val hostLock: Lock
    Definition Classes
    FiberPlugin
  29. val invalidationPorts: ArrayBuffer[AddressTranslationInvalidation]
    Definition Classes
    AddressTranslationService
  30. def isCompletelyUnnamed: Boolean
    Definition Classes
    Nameable
  31. final def isNamed: Boolean
    Definition Classes
    Nameable
  32. def isPriorityApplicable(namePriority: Byte): Boolean
    Definition Classes
    Nameable
  33. def isUnnamed: Boolean
    Definition Classes
    NameableByComponent → Nameable
  34. val lockables: LinkedHashSet[() ⇒ Lock]
    Definition Classes
    FiberPlugin
  35. val logic: Handle[Area { ... /* 24 definitions in type refinement */ }]
  36. def mayNeedRedo: Boolean
    Definition Classes
    MmuPlugin → AddressTranslationService
  37. val name: String
    Definition Classes
    Nameable
  38. def newInvalidationPort(): AddressTranslationInvalidation
    Definition Classes
    AddressTranslationService
  39. def newRefillPort(): AddressTranslationRefill
    Definition Classes
    AddressTranslationService
  40. def newStorage(pAny: Any, pmuEventId: Int): Any
    Definition Classes
    MmuPlugin → AddressTranslationService
  41. def newTranslationPort(stages: Seq[NodeBaseApi], preAddress: Payload[UInt], forcePhysical: Payload[Bool], usage: AddressTranslationPortUsage, portSpec: Any, storageSpec: Any): AddressTranslationRsp
    Definition Classes
    MmuPlugin → AddressTranslationService
  42. def overrideLocalName(name: String): MmuPlugin.this.type
    Definition Classes
    Nameable
  43. val parentScope: ScopeStatement
    Definition Classes
    ContextUser
  44. var physicalWidth: Int
  45. var pluginEnabled: Boolean
    Definition Classes
    FiberPlugin
  46. val portSpecs: ArrayBuffer[PortSpec]
  47. val portsLock: Retainer
    Definition Classes
    AddressTranslationService
  48. val refOwner: RefOwnerType
    Definition Classes
    OwnableRef
    Annotations
    @DontName()
  49. val refillPorts: ArrayBuffer[AddressTranslationRefill]
    Definition Classes
    AddressTranslationService
  50. def reflectNames(): Unit
    Definition Classes
    Nameable
  51. val regionRetainer: Retainer
    Definition Classes
    AddressTranslationService
  52. def retains(head: Any, tail: Any*): RetainerGroup
    Definition Classes
    FiberPlugin
  53. def retains(that: Seq[Any]): RetainerGroup
    Definition Classes
    FiberPlugin
  54. def rework[T](body: ⇒ T): T
    Definition Classes
    Area
  55. val scalaTrace: Throwable
    Definition Classes
    ScalaLocated
  56. def setCompositeName(nameable: Nameable, postfix: String, namePriority: Byte): MmuPlugin.this.type
    Definition Classes
    Nameable
  57. def setCompositeName(nameable: Nameable, postfix: String, weak: Boolean): MmuPlugin.this.type
    Definition Classes
    Nameable
  58. def setCompositeName(nameable: Nameable, postfix: String): MmuPlugin.this.type
    Definition Classes
    Nameable
  59. def setCompositeName(nameable: Nameable, namePriority: Byte): MmuPlugin.this.type
    Definition Classes
    Nameable
  60. def setCompositeName(nameable: Nameable, weak: Boolean): MmuPlugin.this.type
    Definition Classes
    Nameable
  61. def setCompositeName(nameable: Nameable): MmuPlugin.this.type
    Definition Classes
    Nameable
  62. def setHost(h: PluginHost): Unit
    Definition Classes
    FiberPlugin → Hostable
  63. def setLambdaName(isNameBody: ⇒ Boolean)(nameGen: ⇒ String): MmuPlugin.this.type
    Definition Classes
    Nameable
  64. def setName(name: String, namePriority: Byte): MmuPlugin.this.type
    Definition Classes
    Nameable
  65. def setName(name: String, weak: Boolean): MmuPlugin.this.type
    Definition Classes
    Nameable
  66. def setName(name: String): MmuPlugin.this.type
    Definition Classes
    Nameable
  67. def setNameAsWeak(): MmuPlugin.this.type
    Definition Classes
    Nameable
  68. def setPartialName(name: String, namePriority: Byte, owner: Any): MmuPlugin.this.type
    Definition Classes
    Nameable
  69. def setPartialName(name: String, namePriority: Byte): MmuPlugin.this.type
    Definition Classes
    Nameable
  70. def setPartialName(name: String, weak: Boolean): MmuPlugin.this.type
    Definition Classes
    Nameable
  71. def setPartialName(owner: Nameable, name: String, namePriority: Byte): MmuPlugin.this.type
    Definition Classes
    Nameable
  72. def setPartialName(owner: Nameable, name: String, weak: Boolean): MmuPlugin.this.type
    Definition Classes
    Nameable
  73. def setPartialName(name: String): MmuPlugin.this.type
    Definition Classes
    Nameable
  74. def setPartialName(owner: Nameable, name: String): MmuPlugin.this.type
    Definition Classes
    Nameable
  75. def setPartialName(owner: Nameable): MmuPlugin.this.type
    Definition Classes
    Nameable
  76. def setRefOwner(that: Any): Unit
    Definition Classes
    OwnableRef
  77. def setScalaLocated(source: ScalaLocated): MmuPlugin.this.type
    Definition Classes
    ScalaLocated
  78. def setWeakName(name: String): MmuPlugin.this.type
    Definition Classes
    Nameable
  79. def setupRetain(l: ⇒ Lock): Unit
    Definition Classes
    FiberPlugin
  80. var spec: MmuSpec
  81. val storageLock: Retainer
    Definition Classes
    AddressTranslationService
  82. val storageSpecs: ArrayBuffer[StorageSpec]
  83. val subservices: ArrayBuffer[Any]
    Definition Classes
    FiberPlugin
  84. def toString(): String
    Definition Classes
    Area → Nameable → AnyRef → Any
  85. def unsetName(): MmuPlugin.this.type
    Definition Classes
    Nameable
  86. def valCallback[T](ref: T, name: String): T
    Definition Classes
    ValCallbackRec → ValCallback
  87. def valCallbackOn(ref: Any, name: String, refs: Set[Any]): Unit
    Definition Classes
    ValCallbackRec
  88. def valCallbackRec(obj: Any, name: String): Unit
    Definition Classes
    Area → ValCallbackRec
  89. def withPrefix(prefix: String): FiberPlugin
    Definition Classes
    FiberPlugin