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ahb: inject fuzzy errors

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This commit is contained in:
Wesley W. Terpstra 2017-10-30 13:53:23 -07:00
parent 2912a76a2b
commit 6318d7d44c
1 changed files with 12 additions and 6 deletions
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18
src/main/scala/amba/ahb/Test.scala
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@ -39,10 +39,16 @@ class AHBNativeTest(aFlow: Boolean, txns: Int = 5000, timeout: Int = 500000)(imp
io.finished := dut.io.finished
}
class AHBFuzzMaster(aFlow: Boolean, txns: Int)(implicit p: Parameters) extends LazyModule
trait HasFuzzTarget {
val fuzzAddr = AddressSet(0x0, 0xfff)
val pattern = Seq(AddressSet(0x8, ~0x808), // ie: 0x8-0xf, 0x18-0x1f, ... 0x7f8-0x7ff
AddressSet(0x900, ~0x900)) // ie: 0x900-0x9ff, 0xb00-0xbff, ... 0xf00-0xfff
}
class AHBFuzzMaster(aFlow: Boolean, txns: Int)(implicit p: Parameters) extends LazyModule with HasFuzzTarget
{
val node = AHBIdentityNode()
val fuzz = LazyModule(new TLFuzzer(txns))
val fuzz = LazyModule(new TLFuzzer(txns, overrideAddress = Some(fuzzAddr)))
val model = LazyModule(new TLRAMModel("AHBFuzzMaster"))
(node
@ -50,6 +56,7 @@ class AHBFuzzMaster(aFlow: Boolean, txns: Int)(implicit p: Parameters) extends L
:= TLDelayer(0.2)
:= TLBuffer(BufferParams.flow)
:= TLDelayer(0.2)
:= TLErrorEvaluator(pattern, testOn=true, testOff=true)
:= model.node
:= fuzz.node)
@ -62,20 +69,19 @@ class AHBFuzzMaster(aFlow: Boolean, txns: Int)(implicit p: Parameters) extends L
}
}
class AHBFuzzSlave()(implicit p: Parameters) extends LazyModule
class AHBFuzzSlave()(implicit p: Parameters) extends SimpleLazyModule with HasFuzzTarget
{
val node = AHBIdentityNode()
val ram = LazyModule(new TLTestRAM(AddressSet(0x0, 0xfff)))
val ram = LazyModule(new TLTestRAM(fuzzAddr))
(ram.node
:= TLErrorEvaluator(pattern)
:= TLFragmenter(4, 16)
:= TLDelayer(0.2)
:= TLBuffer(BufferParams.flow)
:= TLDelayer(0.2)
:= AHBToTL()
:= node)
lazy val module = new LazyModuleImp(this) { }
}
class AHBFuzzBridge(aFlow: Boolean, txns: Int)(implicit p: Parameters) extends LazyModule