riscv/rocket-chip
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Get rid of MemIO in Top and replace with AXI throughout

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This commit is contained in:
Howard Mao
2015-10-14 11:33:18 -07:00
parent 032bdd0601
commit 9dabcab9c2
10 changed files with 651 additions and 299 deletions
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28
src/main/scala/Configs.scala
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@ -40,20 +40,22 @@ class DefaultConfig extends Config (
case PPNBits => site(PAddrBits) - site(PgIdxBits)
case VAddrBits => site(VPNBits) + site(PgIdxBits)
case ASIdBits => 7
case MIFTagBits => Dump("MEM_TAG_BITS",
// Bits needed at the L2 agent
log2Up(site(NAcquireTransactors)+2) +
// Bits added by NASTI interconnect
log2Up(site(NMemoryChannels) * site(NBanksPerMemoryChannel) + 1) +
// Bits added by final arbiter (not needed if true multichannel memory)
log2Up(site(NMemoryChannels)))
case MIFDataBits => Dump("MEM_DATA_BITS", 128)
case MIFAddrBits => Dump("MEM_ADDR_BITS", site(PAddrBits) - site(CacheBlockOffsetBits))
case MIFTagBits => // Bits needed at the L2 agent
log2Up(site(NAcquireTransactors)+2) +
// Bits added by NASTI interconnect
log2Up(site(NMemoryChannels) * site(NBanksPerMemoryChannel) + 1) +
// Bits added by final arbiter (not needed if true multichannel memory)
log2Up(site(NMemoryChannels))
case MIFDataBits => 64
case MIFAddrBits => site(PAddrBits) - site(CacheBlockOffsetBits)
case MIFDataBeats => site(CacheBlockBytes) * 8 / site(MIFDataBits)
case NastiKey => NastiParameters(
dataBits = site(MIFDataBits),
addrBits = site(PAddrBits),
idBits = site(MIFTagBits))
case NastiKey => {
Dump("MEM_STRB_BITS", site(MIFDataBits) / 8)
NastiParameters(
dataBits = Dump("MEM_DATA_BITS", site(MIFDataBits)),
addrBits = Dump("MEM_ADDR_BITS", site(PAddrBits)),
idBits = Dump("MEM_ID_BITS", site(MIFTagBits)))
}
//Params used by all caches
case NSets => findBy(CacheName)
case NWays => findBy(CacheName)