5efef8b19c
- made builds less verbose on Mac by removing `-cpp` - made type constructors for most instances of `(UInt (TLog n))` - addressed cases where types built upon `(UInt (TLog n))` may have a max value of `n`, which necessitates changing the type to ` (UInt (TLog (TAdd 1 n)))` - compiler wouldn't fully evaluate types unless mkBus was instantiated
119 lines
4.4 KiB
Haskell
119 lines
4.4 KiB
Haskell
package Bus(mkBus, Bus(..)) where
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import Types
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import BusTypes
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import TagEngine
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import Vector
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import Util
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import Arbiter
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import FIFO
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import FIFOF
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import SpecialFIFOs
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clientRequest :: Arbiter.ArbiterClient_IFC -> Action
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clientRequest ifc = ifc.request
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busRequestToAddr :: BusRequest -> Addr
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busRequestToAddr req = case req of
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BusReadRequest (ReadRequest addr _) -> addr
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BusWriteRequest (WriteRequest addr _) -> addr
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dummyRule :: Rules
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dummyRule =
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rules
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"test rule": when True ==> do
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$display "test rule"
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mkBus :: (Addr -> Maybe ServerIdx)
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-> Module (Bus inFlightTransactions numClients numServers)
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mkBus busMap = do
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-- Tag engines for each client to manage transaction tags
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tagEngineByClientVec :: Vector numClients (TagEngine inFlightTransactions)
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tagEngineByClientVec <- replicateM mkTagEngine
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clientArbiters :: Arbiter.Arbiter_IFC numClients
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clientArbiters <- mkArbiter False
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serverArbiters :: Arbiter.Arbiter_IFC numServers
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serverArbiters <- mkArbiter False
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dummyVar :: Reg(Bool)
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dummyVar <- mkReg False
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-- Queues to hold requests from clients
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clientRequestQueues :: Vector numClients (FIFOF (TaggedBusRequest inFlightTransactions))
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clientRequestQueues <- replicateM (mkSizedBypassFIFOF (valueOf inFlightTransactions))
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-- Queues to hold responses to clients
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clientResponseQueues :: Vector numClients (FIFOF (TaggedBusResponse inFlightTransactions))
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clientResponseQueues <- replicateM (mkSizedBypassFIFOF (valueOf inFlightTransactions))
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let clientRouter :: Vector numClients (Rules)
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clientRouter = genWith $ \clientIdx ->
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rules
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"test rule": when True ==> do
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$display "client test rule"
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let clientRouter :: Rules
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clientRouter =
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rules
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"test rule": when True ==> do
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$display "client test rule"
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-- Rules
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addRules |>
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rules
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"test rule": when True ==> do
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$display "test rule"
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<+> clientRouter
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-- Client interface vector
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let clients :: Vector numClients (BusClient inFlightTransactions)
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clients = genWith $ \clientIdx ->
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let
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selectedClientRequestQueue :: FIFOF (TaggedBusRequest inFlightTransactions)
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selectedClientRequestQueue = (select clientRequestQueues clientIdx)
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selectedClientResponseQueue :: FIFOF (TaggedBusResponse inFlightTransactions)
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selectedClientResponseQueue = (select clientResponseQueues clientIdx)
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selectedTagEngine :: TagEngine inFlightTransactions
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selectedTagEngine = (select tagEngineByClientVec clientIdx)
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in
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interface BusClient
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submitRequest :: BusRequest
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-> ActionValue (MkTagType inFlightTransactions)
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submitRequest busRequest = do
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tag <- selectedTagEngine.requestTag
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selectedClientRequestQueue.enq (TaggedBusRequest tag busRequest)
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return tag
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consumeResponse :: ActionValue (TaggedBusResponse inFlightTransactions)
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consumeResponse = do
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let
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busResponse :: (TaggedBusResponse inFlightTransactions)
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busResponse = selectedClientResponseQueue.first
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selectedClientResponseQueue.deq
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return busResponse
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-- Server interface vector
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let servers :: Vector numServers (BusServer inFlightTransactions numClients)
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servers = genWith $ \serverIdx ->
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interface BusServer
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consumeRequest :: ActionValue (MkTagType inFlightTransactions, BusRequest)
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consumeRequest = do
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dummyVar := (not dummyVar)
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let dummyBusRequest = BusReadRequest (ReadRequest 0 SizeByte)
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return (0, dummyBusRequest)
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submitResponse :: ( MkClientTagType numClients,
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TaggedBusResponse inFlightTransactions
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) -> Action
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submitResponse (clientTag, taggedBusResponse) = do
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dummyVar := (not dummyVar)
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return $
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interface Bus
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clients = clients
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servers = servers
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