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cri: fix firmware routing table access

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This commit is contained in:
Sebastien Bourdeauducq 2018-09-12 18:08:16 +08:00
parent e36a8536d7
commit 420e1cb1d0
4 changed files with 27 additions and 17 deletions
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4
artiq/firmware/libboard_artiq/drtio_routing.rs
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@ -75,8 +75,8 @@ pub fn program_interconnect(rt: &RoutingTable, rank: u8)
for i in 0..DEST_COUNT {
let hop = rt.0[i][rank as usize];
unsafe {
csr::cri_con::routing_destination_write(i as _);
csr::cri_con::routing_hop_write(hop);
csr::routing_table::destination_write(i as _);
csr::routing_table::hop_write(hop);
}
}
}

2
artiq/gateware/rtio/__init__.py
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@ -1,5 +1,5 @@
from artiq.gateware.rtio.tsc import TSC
from artiq.gateware.rtio.cri import KernelInitiator, CRIInterconnectShared
from artiq.gateware.rtio.cri import KernelInitiator, CRIInterconnectShared, RoutingTableAccess
from artiq.gateware.rtio.channel import Channel, LogChannel
from artiq.gateware.rtio.core import Core
from artiq.gateware.rtio.analyzer import Analyzer

34
artiq/gateware/rtio/cri.py
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@ -119,28 +119,15 @@ class CRIDecoder(Module, AutoCSR):
self.slaves = slaves
self.master = master
slave_bits = bits_for(len(slaves)-1)
if enable_routing:
self.routing_destination = CSRStorage(8)
self.routing_hop = CSR(slave_bits)
# # #
# routing
slave_bits = bits_for(len(slaves)-1)
selected = Signal(slave_bits)
if enable_routing:
self.specials.routing_table = Memory(slave_bits, 256)
rtp_csr = self.routing_table.get_port(write_capable=True)
self.specials += rtp_csr
self.comb += [
rtp_csr.adr.eq(self.routing_destination.storage),
rtp_csr.dat_w.eq(self.routing_hop.r),
rtp_csr.we.eq(self.routing_hop.re),
self.routing_hop.w.eq(rtp_csr.dat_r)
]
if mode == "async":
rtp_decoder = self.routing_table.get_port()
elif mode == "sync":
@ -220,3 +207,22 @@ class CRIInterconnectShared(Module):
def get_csrs(self):
return self.switch.get_csrs() + self.decoder.get_csrs()
class RoutingTableAccess(Module, AutoCSR):
def __init__(self, interconnect):
if isinstance(interconnect, CRIInterconnectShared):
interconnect = interconnect.decoder
rtp_csr = interconnect.routing_table.get_port(write_capable=True)
self.specials += rtp_csr
self.destination = CSRStorage(8)
self.hop = CSR(len(rtp_csr.dat_w))
self.comb += [
rtp_csr.adr.eq(self.destination.storage),
rtp_csr.dat_w.eq(self.hop.r),
rtp_csr.we.eq(self.hop.re),
self.hop.w.eq(rtp_csr.dat_r)
]

4
artiq/gateware/targets/kasli.py
View File

@ -730,6 +730,8 @@ class _MasterBase(MiniSoC, AMPSoC):
[self.rtio_core.cri] + self.drtio_cri,
enable_routing=True)
self.register_kernel_cpu_csrdevice("cri_con")
self.submodules.routing_table = rtio.RoutingTableAccess(self.cri_con)
self.csr_devices.append("routing_table")
self.submodules.rtio_analyzer = rtio.Analyzer(self.rtio_tsc, self.cri_con.switch.slave,
self.get_native_sdram_if())
@ -900,6 +902,8 @@ class _SatelliteBase(BaseSoC):
[self.local_io.cri] + self.drtio_cri,
mode="sync", enable_routing=True)
self.csr_devices.append("cri_con")
self.submodules.routing_table = rtio.RoutingTableAccess(self.cri_con)
self.csr_devices.append("routing_table")
class Master(_MasterBase):