riscv/rocket-chip
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rocket: only cache when AcquireT is possible

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This commit is contained in:
Henry Cook
2017-10-10 18:06:58 -07:00
parent 37406706b4
commit 1867a5b226
4 changed files with 7 additions and 8 deletions
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6
src/main/scala/tilelink/CacheCork.scala
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@ -19,9 +19,9 @@ class TLCacheCork(unsafe: Boolean = false)(implicit p: Parameters) extends LazyM
managerFn = { case mp =>
mp.copy(
endSinkId = 1,
managers = mp.managers.map { m => m.copy( // Rocket requires m.supportsAcquireT || !m.supportsAcquireB, so, don't cache ROMs
supportsAcquireB = if (m.regionType == RegionType.UNCACHED && m.supportsPutFull) m.supportsGet else m.supportsAcquireB,
supportsAcquireT = if (m.regionType == RegionType.UNCACHED) m.supportsPutFull else m.supportsAcquireT)})})
managers = mp.managers.map { m => m.copy(
supportsAcquireB = if (m.regionType == RegionType.UNCACHED) m.supportsGet else m.supportsAcquireB,
supportsAcquireT = if (m.regionType == RegionType.UNCACHED) m.supportsPutFull else m.supportsAcquireT)})})
lazy val module = new LazyModuleImp(this) {
(node.in zip node.out) foreach { case ((in, edgeIn), (out, edgeOut)) =>