riscv/rocket-chip
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finished uncore constant/tilelink data refactor

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This commit is contained in:
Henry Cook
2014-04-10 13:13:46 -07:00
parent 56f515c255
commit 5a5f69bfca
5 changed files with 64 additions and 24 deletions
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2
chisel

Submodule chisel updated: 663b8716aa...41d48485e1

2
rocket

Submodule rocket updated: 47e883edc1...5bc618bc74

56
src/main/scala/RocketChip.scala
View File

@@ -8,8 +8,8 @@ import ReferenceChipBackend._
import scala.collection.mutable.HashMap
import DRAMModel._
object DummyTopLevelConstants {
val NTILES = 2
object DesignSpaceConstants {
val NTILES = 1
val NBANKS = 1
val HTIF_WIDTH = 16
val ENABLE_SHARING = true
@@ -18,13 +18,31 @@ object DummyTopLevelConstants {
val NL2_REL_XACTS = 1
val NL2_ACQ_XACTS = 7
val NMSHRS = 2
}
object MemoryConstants {
val CACHE_DATA_SIZE_IN_BYTES = 1 << 6 //TODO: How configurable is this really?
val OFFSET_BITS = log2Up(CACHE_DATA_SIZE_IN_BYTES)
val PADDR_BITS = 32
val VADDR_BITS = 43
val PGIDX_BITS = 13
val ASID_BITS = 7
val PERM_BITS = 6
val MEM_TAG_BITS = 5
val MEM_DATA_BITS = 128
val MEM_ADDR_BITS = PADDR_BITS - OFFSET_BITS
val MEM_DATA_BEATS = 4
}
import DummyTopLevelConstants._
object TileLinkSizeConstants {
val WRITE_MASK_BITS = 6
val SUBWORD_ADDR_BITS = 3
val ATOMIC_OP_BITS = 4
}
import DesignSpaceConstants._
import MemoryConstants._
import TileLinkSizeConstants._
object ReferenceChipBackend {
val initMap = new HashMap[Module, Bool]()
@@ -150,7 +168,7 @@ class OuterMemorySystem(htif_width: Int)(implicit conf: UncoreConfiguration) ext
io.mem_backup <> mem_serdes.io.narrow
}
case class UncoreConfiguration(l2: L2CoherenceAgentConfiguration, tl: TileLinkConfiguration, mif: MemoryIFConfiguration, nTiles: Int, nBanks: Int, bankIdLsb: Int, nSCR: Int)
case class UncoreConfiguration(l2: L2CoherenceAgentConfiguration, tl: TileLinkConfiguration, mif: MemoryIFConfiguration, nTiles: Int, nBanks: Int, bankIdLsb: Int, nSCR: Int, offsetBits: Int)
class Uncore(htif_width: Int)(implicit conf: UncoreConfiguration) extends Module
{
@@ -164,7 +182,7 @@ class Uncore(htif_width: Int)(implicit conf: UncoreConfiguration) extends Module
val mem_backup = new MemSerializedIO(htif_width)
val mem_backup_en = Bool(INPUT)
}
val htif = Module(new HTIF(htif_width, CSRs.reset, conf.nSCR))
val htif = Module(new HTIF(htif_width, CSRs.reset, conf.nSCR, conf.offsetBits))
val outmemsys = Module(new OuterMemorySystem(htif_width))
val incoherentWithHtif = (io.incoherent :+ Bool(true).asInput)
outmemsys.io.incoherent := incoherentWithHtif
@@ -250,19 +268,29 @@ class Top extends Module {
}
implicit val ln = LogicalNetworkConfiguration(log2Up(NTILES)+1, NBANKS, NTILES+1)
implicit val tl = TileLinkConfiguration(co, ln, log2Up(NL2_REL_XACTS+NL2_ACQ_XACTS), 2*log2Up(NMSHRS*NTILES+1), CACHE_DATA_SIZE_IN_BYTES*8)
implicit val as = AddressSpaceConfiguration(PADDR_BITS, VADDR_BITS, PGIDX_BITS, ASID_BITS, PERM_BITS)
implicit val tl = TileLinkConfiguration(co = co, ln = ln,
addrBits = as.paddrBits-OFFSET_BITS,
clientXactIdBits = log2Up(NL2_REL_XACTS+NL2_ACQ_XACTS),
masterXactIdBits = 2*log2Up(NMSHRS*NTILES+1),
dataBits = CACHE_DATA_SIZE_IN_BYTES*8,
writeMaskBits = WRITE_MASK_BITS,
wordAddrBits = SUBWORD_ADDR_BITS,
atomicOpBits = ATOMIC_OP_BITS)
implicit val l2 = L2CoherenceAgentConfiguration(tl, NL2_REL_XACTS, NL2_ACQ_XACTS)
implicit val mif = MemoryIFConfiguration(MEM_ADDR_BITS, MEM_DATA_BITS, MEM_TAG_BITS, MEM_DATA_BEATS)
implicit val uc = UncoreConfiguration(l2, tl, mif, NTILES, NBANKS, bankIdLsb = 5, nSCR = 64)
implicit val uc = UncoreConfiguration(l2, tl, mif, NTILES, NBANKS, bankIdLsb = 5, nSCR = 64, offsetBits = OFFSET_BITS)
val ic = ICacheConfig(128, 2, ntlb = 8, nbtb = 38, tl = tl)
val dc = DCacheConfig(128, 4, ntlb = 8,
nmshr = NMSHRS, nrpq = 16, nsdq = 17, tl = tl)
val vic = ICacheConfig(128, 1, tl = tl)
val hc = hwacha.HwachaConfiguration(vic, dc, 8, 256, ndtlb = 8, nptlb = 2)
val ic = ICacheConfig(sets = 128, assoc = 2, ntlb = 8, tl = tl, as = as, btb = BTBConfig(as, 8))
val dc = DCacheConfig(sets = 128, ways = 4,
tl = tl, as = as,
ntlb = 8, nmshr = NMSHRS, nrpq = 16, nsdq = 17,
reqtagbits = -1, databits = -1)
val vic = ICacheConfig(sets = 128, assoc = 1, tl = tl, as = as, btb = BTBConfig(as, 8))
val hc = hwacha.HwachaConfiguration(as, vic, dc, 8, 256, ndtlb = 8, nptlb = 2)
val fpu = if (HAS_FPU) Some(FPUConfig(sfmaLatency = 2, dfmaLatency = 3)) else None
val rc = RocketConfiguration(tl, ic, dc, fpu
//,rocc = (c: RocketConfiguration) => (new hwacha.Hwacha(hc, c))
val rc = RocketConfiguration(tl, as, ic, dc, fpu,
rocc = (c: RocketConfiguration) => (new hwacha.Hwacha(hc, c))
)
val io = new VLSITopIO(HTIF_WIDTH)

26
src/main/scala/fpga.scala
View File

@@ -47,7 +47,7 @@ class FPGAUncore(htif_width: Int)(implicit conf: UncoreConfiguration) extends Mo
val htif = Vec.fill(conf.nTiles){new HTIFIO(conf.nTiles)}.flip
val incoherent = Vec.fill(conf.nTiles){Bool()}.asInput
}
val htif = Module(new HTIF(htif_width, CSRs.reset, conf.nSCR))
val htif = Module(new HTIF(htif_width, CSRs.reset, conf.nSCR, conf.offsetBits))
val outmemsys = Module(new FPGAOuterMemorySystem(htif_width))
val incoherentWithHtif = (io.incoherent :+ Bool(true).asInput)
outmemsys.io.incoherent := incoherentWithHtif
@@ -73,6 +73,9 @@ class FPGAUncore(htif_width: Int)(implicit conf: UncoreConfiguration) extends Mo
htif.io.host.in <> io.host.in
}
import MemoryConstants._
import TileLinkSizeConstants._
class ReferenceChip(htif_width: Int)(implicit mif: MemoryIFConfiguration) extends Module {
val io = new Bundle {
val host_in = new DecoupledIO(new HostPacket(htif_width)).flip()
@@ -90,13 +93,21 @@ class ReferenceChip(htif_width: Int)(implicit mif: MemoryIFConfiguration) extend
val nbanks = 1
val nmshrs = 2
implicit val ln = LogicalNetworkConfiguration(log2Up(ntiles)+1, nbanks, ntiles+1)
implicit val tl = TileLinkConfiguration(co, ln, log2Up(1+8), 2*log2Up(nmshrs*ntiles+1), CACHE_DATA_SIZE_IN_BYTES*8)
implicit val as = AddressSpaceConfiguration(PADDR_BITS, VADDR_BITS, PGIDX_BITS, ASID_BITS, PERM_BITS)
implicit val tl = TileLinkConfiguration(co = co, ln = ln,
addrBits = as.paddrBits-OFFSET_BITS,
clientXactIdBits = log2Up(1+8),
masterXactIdBits = 2*log2Up(2*1+1),
dataBits = CACHE_DATA_SIZE_IN_BYTES*8,
writeMaskBits = WRITE_MASK_BITS,
wordAddrBits = SUBWORD_ADDR_BITS,
atomicOpBits = ATOMIC_OP_BITS)
implicit val l2 = L2CoherenceAgentConfiguration(tl, 1, 8)
implicit val uc = UncoreConfiguration(l2, tl, mif, ntiles, nbanks, bankIdLsb = 5, nSCR = 64)
implicit val uc = UncoreConfiguration(l2, tl, mif, ntiles, nbanks, bankIdLsb = 5, nSCR = 64, offsetBits = OFFSET_BITS)
val ic = ICacheConfig(64, 1, ntlb = 4, nbtb = 4, tl = tl)
val dc = DCacheConfig(64, 1, ntlb = 4, nmshr = 2, nrpq = 16, nsdq = 17, tl = tl)
val rc = RocketConfiguration(tl, ic, dc, fpu = None,
val ic = ICacheConfig(64, 1, ntlb = 4, tl = tl, as = as, btb = BTBConfig(as, 8))
val dc = DCacheConfig(64, 1, ntlb = 4, nmshr = 2, nrpq = 16, nsdq = 17, tl = tl, as = as, reqtagbits = -1, databits = -1)
val rc = RocketConfiguration(tl, as, ic, dc, fpu = None,
fastMulDiv = false)
val resetSigs = Vec.fill(uc.nTiles){Bool()}
@@ -138,13 +149,14 @@ class ReferenceChip(htif_width: Int)(implicit mif: MemoryIFConfiguration) extend
io.mem_resp <> uncore.io.mem.resp
}
import MemoryConstants._
class FPGATopIO(htifWidth: Int)(implicit conf: MemoryIFConfiguration) extends TopIO(htifWidth)(conf)
class FPGATop extends Module {
val htif_width = 16
implicit val mif = MemoryIFConfiguration(PADDR_BITS - OFFSET_BITS, 128, 5, 4)
implicit val mif = MemoryIFConfiguration(MEM_ADDR_BITS, MEM_DATA_BITS, MEM_TAG_BITS, 4)
val deviceWidth = ROW_WIDTH/mif.dataBits
implicit val mc = MemoryControllerConfiguration(deviceWidth, (if(deviceWidth == 4) 0 else log2Up(deviceWidth/4)), mif)

2
uncore

Submodule uncore updated: 67589ccca6...240fdc0ef7