internal static void Setup()
{
System.DebugStub.Print("Dma.Setup 1. ");
try {
CompilerIntrinsics.Cli();
ioMemory = NucleusCalls.PciDmaBuffer();
ioPhysical = NucleusCalls.PciDmaPhysicalAddr();
// The IO-MMU tables map 2MB, aligned by 2MB
uint superPageSize = 0x200000;
uint ioSuperPage = (ioPhysical + 2 * superPageSize) - (ioPhysical & (superPageSize - 1));
allocOffset = (int)(ioSuperPage - ioPhysical);
}
finally {
CompilerIntrinsics.Sti();
}
System.DebugStub.Print("Dma.Setup 2. ioPhysical = 0x" + ioPhysical.ToString("X") + " allocOffset = 0x" + allocOffset.ToString("X") + ". ");
}
public override void Run()
{
System.DebugStub.Print(" PLASMA Verve. ");
System.DebugStub.Print("IoThread@" + Kernel.CurrentThread + ". ");
byte[] pciDmaBuffer;
try {
CompilerIntrinsics.Cli();
pciDmaBuffer = NucleusCalls.PciDmaBuffer();
} finally {
CompilerIntrinsics.Sti();
}
if (pciDmaBuffer == null)
{
System.DebugStub.Print("No IO-MMU. ");
Kernel.kernel.NewSemaphore(0).Wait();
return;
}
// Establish DMA buffer area
Microsoft.Singularity.Io.DmaMemory.Setup();
// Enumerate and initialize PCI devices
for (uint id = 0; id < 65536; id += 8)
{
uint v;
try {
CompilerIntrinsics.Cli();
v = NucleusCalls.PciConfigRead32(id, 0);
} finally {
CompilerIntrinsics.Sti();
}
if (v == 0x107c8086)
{
// Intel NIC
System.DebugStub.Print("Found Intel NIC. ");
}
}
System.DebugStub.Print("IoThread done. ");
Kernel.kernel.NewSemaphore(0).Wait();
}
public override void Run()
{
System.DebugStub.Print("IoThread@" + Kernel.CurrentThread + ". ");
byte[] pciDmaBuffer;
try {
CompilerIntrinsics.Cli();
pciDmaBuffer = NucleusCalls.PciDmaBuffer();
} finally {
CompilerIntrinsics.Sti();
}
if (pciDmaBuffer == null)
{
System.DebugStub.Print("No IO-MMU. ");
Kernel.kernel.NewSemaphore(0).Wait();
return;
}
// Set up networking
Microsoft.Singularity.NetStack2.ARP arp =
new Microsoft.Singularity.NetStack2.ARP();
Microsoft.Singularity.NetStack2.IP.Initialize(arp);
Microsoft.Singularity.NetStack2.Ethernet.Initialize(arp);
//Microsoft.Singularity.NetStack2.Channels.Private.RoutingExpManager routingManager =
// new Microsoft.Singularity.NetStack2.Channels.Private.RoutingExpManager();
Microsoft.Singularity.NetStack2.Channels.Private.IPContract ipManager =
new Microsoft.Singularity.NetStack2.Channels.Private.IPContract();
// Establish DMA buffer area
Microsoft.Singularity.Io.DmaMemory.Setup();
// Enumerate and initialize PCI devices
for (uint id = 0; id < 65536; id += 8)
{
uint v;
try {
CompilerIntrinsics.Cli();
v = NucleusCalls.PciConfigRead32(id, 0);
} finally {
CompilerIntrinsics.Sti();
}
if (v == 0x107c8086)
{
// Intel NIC
System.DebugStub.Print("Found Intel NIC. ");
Microsoft.Singularity.Drivers.Network.Intel.Intel intel =
new Microsoft.Singularity.Drivers.Network.Intel.Intel(
new Microsoft.Singularity.Io.PciDeviceConfig((ushort)id),
new Microsoft.Singularity.Io.PciMemory(id),
"82541 PI",
Microsoft.Singularity.Drivers.Network.Intel.CardType.I82541PI);
intel.Initialize();
Microsoft.Singularity.Io.Net.NicDeviceContract nicDev =
new Microsoft.Singularity.Drivers.Network.Intel.IntelDeviceChannel(intel);
bool ok = Microsoft.Singularity.NetStack2.Channels.Nic.Nic.CreateAndRegister(
nicDev, "/nic0");
System.VTable.Assert(ok);
ipManager.StartDhcp("/nic0");
}
}
System.DebugStub.Print("IoThread done. ");
Kernel.kernel.NewSemaphore(0).Wait();
}