Upstream MemConf and use it (with some slight tweaks)

This commit is contained in:
John Wright
2019-03-05 15:01:44 -08:00
committed by Colin Schmidt
parent c23b2b6f84
commit 82636b3ff4
3 changed files with 4 additions and 61 deletions

View File

@@ -1,59 +0,0 @@
// See LICENSE for license details.
package barstools.macros
import scala.util.matching._
sealed abstract class MemPort(val name: String) { override def toString = name }
case object ReadPort extends MemPort("read")
case object WritePort extends MemPort("write")
case object MaskedWritePort extends MemPort("mwrite")
case object ReadWritePort extends MemPort("rw")
case object MaskedReadWritePort extends MemPort("mrw")
object MemPort {
val all = Set(ReadPort, WritePort, MaskedWritePort, ReadWritePort, MaskedReadWritePort)
def apply(s: String): Option[MemPort] = MemPort.all.find(_.name == s)
def fromString(s: String): Seq[MemPort] = {
s.split(",").toSeq.map(MemPort.apply).map(_ match {
case Some(x) => x
case _ => throw new Exception(s"Error parsing MemPort string : ${s}")
})
}
}
// This is based on firrtl.passes.memlib.ConfWriter
// TODO standardize this in FIRRTL
case class MemConf(
name: String,
depth: BigInt,
width: Int,
ports: Seq[MemPort],
maskGranularity: Option[Int]
) {
private def portsStr = ports.map(_.name).mkString(",")
private def maskGranStr = maskGranularity.map((p) => s"mask_gran $p").getOrElse("")
override def toString() = s"name ${name} depth ${depth} width ${width} ports ${portsStr} ${maskGranStr} "
}
object MemConf {
val regex = raw"\s*name\s+(\w+)\s+depth\s+(\d+)\s+width\s+(\d+)\s+ports\s+([^\s]+)\s+(?:mask_gran\s+(\d+))?\s*".r
def fromString(s: String): Seq[MemConf] = {
if (s.isEmpty) {
Seq[MemConf]()
} else {
s.split("\n").toSeq.map(_ match {
case MemConf.regex(name, depth, width, ports, maskGran) => MemConf(name, BigInt(depth), width.toInt, MemPort.fromString(ports), Option(maskGran).map(_.toInt))
case _ => throw new Exception(s"Error parsing MemConf string : ${s}")
})
}
}
}

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@@ -5,6 +5,7 @@ package barstools.macros
import firrtl._
import firrtl.ir._
import firrtl.PrimOps
import firrtl.passes.memlib.{MemConf, MemPort, ReadPort, WritePort, ReadWritePort, MaskedWritePort, MaskedReadWritePort}
import firrtl.Utils.{ceilLog2, BoolType}
import mdf.macrolib.{Constant, MacroPort, SRAMMacro}
import mdf.macrolib.{PolarizedPort, PortPolarity, ActiveLow, ActiveHigh, NegativeEdge, PositiveEdge, MacroExtraPort}
@@ -78,7 +79,8 @@ object Utils {
}
def readConfFromString(str: String): Seq[mdf.macrolib.Macro] = {
MemConf.fromString(str).map { m:MemConf =>
SRAMMacro(m.name, m.width, m.depth, Utils.portSpecToFamily(m.ports), Utils.portSpecToMacroPort(m.width, m.depth, m.maskGranularity, m.ports))
val ports = m.ports.map { case (port, num) => Seq.fill(num)(port) } reduce (_ ++ _)
SRAMMacro(m.name, m.width, m.depth, Utils.portSpecToFamily(ports), Utils.portSpecToMacroPort(m.width, m.depth, m.maskGranularity, ports))
}
}
def portSpecToFamily(ports: Seq[MemPort]): String = {