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Address Map refactoring

This commit is contained in:
Andrew Waterman 2016-04-28 16:08:58 -07:00
parent ed5bdf3c23
commit 1df68a25fd

View File

@ -259,45 +259,31 @@ abstract class TileLinkInterconnect(implicit p: Parameters) extends TLModule()(p
class TileLinkRecursiveInterconnect(
val nInner: Int, addrmap: AddrMap, base: BigInt)
(implicit p: Parameters) extends TileLinkInterconnect()(p) {
var lastEnd = base
val levelSize = addrmap.size
val nOuter = addrmap.countSlaves
val realAddrMap = addrmap map { case AddrMapEntry(name, region) =>
val start = lastEnd
val size = region.size
require(isPow2(size),
s"Region $name size $size is not a power of 2")
require(start % size == 0,
f"Region $name start address 0x$start%x not divisible by 0x$size%x" )
require(start >= lastEnd,
f"Region $name start address 0x$start%x before previous region end")
lastEnd = start + size
(start, size)
}
val addrHashMap = new AddrHashMap(addrmap, base)
val routeSel = (addr: UInt) => {
Cat(realAddrMap.map { case (start, size) =>
addr >= UInt(start) && addr < UInt(start + size)
Cat(addrmap.map { case entry =>
val hashEntry = addrHashMap(entry.name)
addr >= UInt(hashEntry.start) && addr < UInt(hashEntry.start + hashEntry.region.size)
}.reverse)
}
val xbar = Module(new ClientUncachedTileLinkIOCrossbar(nInner, levelSize, routeSel))
xbar.io.in <> io.in
io.out <> addrmap.zip(realAddrMap).zip(xbar.io.out).zipWithIndex.flatMap {
case (((entry, (start, size)), xbarOut), i) => {
io.out <> addrmap.zip(xbar.io.out).flatMap {
case (entry, xbarOut) => {
entry.region match {
case MemSize(_, _, _) =>
case _: MemSize =>
Some(xbarOut)
case MemSubmap(_, submap) if submap.isEmpty =>
xbarOut.acquire.ready := Bool(false)
xbarOut.grant.valid := Bool(false)
None
case MemSubmap(_, submap) =>
val ic = Module(new TileLinkRecursiveInterconnect(1, submap, start))
val ic = Module(new TileLinkRecursiveInterconnect(1, submap, addrHashMap(entry.name).start))
ic.io.in.head <> xbarOut
ic.io.out
}