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Add WithSystemBusWidth fragment (#1071)

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This commit is contained in:
Jerry Zhao
2022-01-10 09:09:21 -08:00
committed by GitHub
parent d335e728b6
commit 1ce67a0997
1 changed files with 4 additions and 1 deletions
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5
generators/chipyard/src/main/scala/config/fragments/SubsystemFragments.scala
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@@ -1,10 +1,13 @@
package chipyard.config package chipyard.config
import freechips.rocketchip.config.{Config} import freechips.rocketchip.config.{Config}
import freechips.rocketchip.subsystem.{BankedL2Key, CoherenceManagerWrapper} import freechips.rocketchip.subsystem.{SystemBusKey, BankedL2Key, CoherenceManagerWrapper}
// Replaces the L2 with a broadcast manager for maintaining coherence // Replaces the L2 with a broadcast manager for maintaining coherence
class WithBroadcastManager extends Config((site, here, up) => { class WithBroadcastManager extends Config((site, here, up) => {
case BankedL2Key => up(BankedL2Key, site).copy(coherenceManager = CoherenceManagerWrapper.broadcastManager) case BankedL2Key => up(BankedL2Key, site).copy(coherenceManager = CoherenceManagerWrapper.broadcastManager)
}) })
class WithSystemBusWidth(bitWidth: Int) extends Config((site, here, up) => {
case SystemBusKey => up(SystemBusKey, site).copy(beatBytes=bitWidth/8)
})