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tilelink2 Bundles: add 1-way snoop bundles

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This commit is contained in:
Wesley W. Terpstra 2016-09-21 12:04:52 -07:00
parent 69a1f8cd1f
commit def497861b
1 changed files with 46 additions and 3 deletions
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49
src/main/scala/uncore/tilelink2/Bundles.scala
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@ -2,8 +2,8 @@
package uncore.tilelink2
import Chisel._
import chisel3.util.Irrevocable
import chisel3._
import chisel3.util._
abstract class GenericParameterizedBundle[T <: Object](val params: T) extends Bundle
{
@ -12,7 +12,7 @@ abstract class GenericParameterizedBundle[T <: Object](val params: T) extends Bu
this.getClass.getConstructors.head.newInstance(params).asInstanceOf[this.type]
} catch {
case e: java.lang.IllegalArgumentException =>
throwException("Unable to use GenericParameterizedBundle.cloneType on " +
throw new Exception("Unable to use GenericParameterizedBundle.cloneType on " +
this.getClass + ", probably because " + this.getClass +
"() takes more than one argument. Consider overriding " +
"cloneType() on " + this.getClass, e)
@ -189,3 +189,46 @@ object TLBundle
{
def apply(params: TLBundleParameters) = new TLBundle(params)
}
class IrrevocableSnoop[+T <: Data](gen: T) extends Bundle
{
val ready = Bool()
val valid = Bool()
val bits = gen.asOutput
def fire(dummy: Int = 0) = ready && valid
override def cloneType: this.type = new IrrevocableSnoop(gen).asInstanceOf[this.type]
}
object IrrevocableSnoop
{
def apply[T <: Data](i: IrrevocableIO[T]) = {
val out = Wire(new IrrevocableSnoop(i.bits))
out.ready := i.ready
out.valid := i.valid
out.bits := i.bits
out
}
}
class TLBundleSnoop(params: TLBundleParameters) extends TLBundleBase(params)
{
val a = new IrrevocableSnoop(new TLBundleA(params))
val b = new IrrevocableSnoop(new TLBundleB(params))
val c = new IrrevocableSnoop(new TLBundleC(params))
val d = new IrrevocableSnoop(new TLBundleD(params))
val e = new IrrevocableSnoop(new TLBundleE(params))
}
object TLBundleSnoop
{
def apply(x: TLBundle) = {
val out = Wire(new TLBundleSnoop(x.params))
out.a := IrrevocableSnoop(x.a)
out.b := IrrevocableSnoop(x.b)
out.c := IrrevocableSnoop(x.c)
out.d := IrrevocableSnoop(x.d)
out.e := IrrevocableSnoop(x.e)
out
}
}