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ryujinx-fork/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostChannel/NvHostChannelDeviceFile.cs
Billy Laws 2073ba2919
Fix a potential GPFIFO submission race (#3378)
The syncpoint maximum value represents the maximum possible syncpt value at a given time, however due to PBs being submitted before max was incremented, for a brief moment of time this is not the case which could lead to invalid behaviour if a game waits on the fence at that specific time.
2022-06-04 21:36:36 +02:00

574 lines
21 KiB
C#

using Ryujinx.Common.Logging;
using Ryujinx.Graphics.Gpu;
using Ryujinx.Graphics.Gpu.Memory;
using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel.Types;
using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl;
using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap;
using Ryujinx.HLE.HOS.Services.Nv.Types;
using Ryujinx.Memory;
using System;
using System.Collections.Concurrent;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel
{
class NvHostChannelDeviceFile : NvDeviceFile
{
private static readonly ConcurrentDictionary<ulong, Host1xContext> _host1xContextRegistry = new();
private const uint MaxModuleSyncpoint = 16;
private uint _timeout;
private uint _submitTimeout;
private uint _timeslice;
private readonly Switch _device;
private readonly IVirtualMemoryManager _memory;
private readonly Host1xContext _host1xContext;
private readonly long _contextId;
public GpuChannel Channel { get; }
public enum ResourcePolicy
{
Device,
Channel
}
protected static uint[] DeviceSyncpoints = new uint[MaxModuleSyncpoint];
protected uint[] ChannelSyncpoints;
protected static ResourcePolicy ChannelResourcePolicy = ResourcePolicy.Device;
private NvFence _channelSyncpoint;
public NvHostChannelDeviceFile(ServiceCtx context, IVirtualMemoryManager memory, ulong owner) : base(context, owner)
{
_device = context.Device;
_memory = memory;
_timeout = 3000;
_submitTimeout = 0;
_timeslice = 0;
_host1xContext = GetHost1XContext(context.Device.Gpu, owner);
_contextId = _host1xContext.Host1x.CreateContext();
Channel = _device.Gpu.CreateChannel();
ChannelInitialization.InitializeState(Channel);
ChannelSyncpoints = new uint[MaxModuleSyncpoint];
_channelSyncpoint.Id = _device.System.HostSyncpoint.AllocateSyncpoint(false);
_channelSyncpoint.UpdateValue(_device.System.HostSyncpoint);
}
public override NvInternalResult Ioctl(NvIoctl command, Span<byte> arguments)
{
NvInternalResult result = NvInternalResult.NotImplemented;
if (command.Type == NvIoctl.NvHostCustomMagic)
{
switch (command.Number)
{
case 0x01:
result = Submit(arguments);
break;
case 0x02:
result = CallIoctlMethod<GetParameterArguments>(GetSyncpoint, arguments);
break;
case 0x03:
result = CallIoctlMethod<GetParameterArguments>(GetWaitBase, arguments);
break;
case 0x07:
result = CallIoctlMethod<uint>(SetSubmitTimeout, arguments);
break;
case 0x09:
result = MapCommandBuffer(arguments);
break;
case 0x0a:
result = UnmapCommandBuffer(arguments);
break;
}
}
else if (command.Type == NvIoctl.NvHostMagic)
{
switch (command.Number)
{
case 0x01:
result = CallIoctlMethod<int>(SetNvMapFd, arguments);
break;
case 0x03:
result = CallIoctlMethod<uint>(SetTimeout, arguments);
break;
case 0x08:
result = SubmitGpfifo(arguments);
break;
case 0x09:
result = CallIoctlMethod<AllocObjCtxArguments>(AllocObjCtx, arguments);
break;
case 0x0b:
result = CallIoctlMethod<ZcullBindArguments>(ZcullBind, arguments);
break;
case 0x0c:
result = CallIoctlMethod<SetErrorNotifierArguments>(SetErrorNotifier, arguments);
break;
case 0x0d:
result = CallIoctlMethod<NvChannelPriority>(SetPriority, arguments);
break;
case 0x18:
result = CallIoctlMethod<AllocGpfifoExArguments>(AllocGpfifoEx, arguments);
break;
case 0x1a:
result = CallIoctlMethod<AllocGpfifoExArguments>(AllocGpfifoEx2, arguments);
break;
case 0x1d:
result = CallIoctlMethod<uint>(SetTimeslice, arguments);
break;
}
}
else if (command.Type == NvIoctl.NvGpuMagic)
{
switch (command.Number)
{
case 0x14:
result = CallIoctlMethod<ulong>(SetUserData, arguments);
break;
}
}
return result;
}
private NvInternalResult Submit(Span<byte> arguments)
{
SubmitArguments submitHeader = GetSpanAndSkip<SubmitArguments>(ref arguments, 1)[0];
Span<CommandBuffer> commandBuffers = GetSpanAndSkip<CommandBuffer>(ref arguments, submitHeader.CmdBufsCount);
Span<Reloc> relocs = GetSpanAndSkip<Reloc>(ref arguments, submitHeader.RelocsCount);
Span<uint> relocShifts = GetSpanAndSkip<uint>(ref arguments, submitHeader.RelocsCount);
Span<SyncptIncr> syncptIncrs = GetSpanAndSkip<SyncptIncr>(ref arguments, submitHeader.SyncptIncrsCount);
Span<uint> fenceThresholds = GetSpanAndSkip<uint>(ref arguments, submitHeader.FencesCount);
lock (_device)
{
for (int i = 0; i < syncptIncrs.Length; i++)
{
SyncptIncr syncptIncr = syncptIncrs[i];
uint id = syncptIncr.Id;
fenceThresholds[i] = Context.Device.System.HostSyncpoint.IncrementSyncpointMax(id, syncptIncr.Incrs);
}
foreach (CommandBuffer commandBuffer in commandBuffers)
{
NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, commandBuffer.Mem);
var data = _memory.GetSpan(map.Address + commandBuffer.Offset, commandBuffer.WordsCount * 4);
_host1xContext.Host1x.Submit(MemoryMarshal.Cast<byte, int>(data), _contextId);
}
}
return NvInternalResult.Success;
}
private Span<T> GetSpanAndSkip<T>(ref Span<byte> arguments, int count) where T : unmanaged
{
Span<T> output = MemoryMarshal.Cast<byte, T>(arguments).Slice(0, count);
arguments = arguments.Slice(Unsafe.SizeOf<T>() * count);
return output;
}
private NvInternalResult GetSyncpoint(ref GetParameterArguments arguments)
{
if (arguments.Parameter >= MaxModuleSyncpoint)
{
return NvInternalResult.InvalidInput;
}
if (ChannelResourcePolicy == ResourcePolicy.Device)
{
arguments.Value = GetSyncpointDevice(_device.System.HostSyncpoint, arguments.Parameter, false);
}
else
{
arguments.Value = GetSyncpointChannel(arguments.Parameter, false);
}
if (arguments.Value == 0)
{
return NvInternalResult.TryAgain;
}
return NvInternalResult.Success;
}
private NvInternalResult GetWaitBase(ref GetParameterArguments arguments)
{
arguments.Value = 0;
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult SetSubmitTimeout(ref uint submitTimeout)
{
_submitTimeout = submitTimeout;
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult MapCommandBuffer(Span<byte> arguments)
{
int headerSize = Unsafe.SizeOf<MapCommandBufferArguments>();
MapCommandBufferArguments commandBufferHeader = MemoryMarshal.Cast<byte, MapCommandBufferArguments>(arguments)[0];
Span<CommandBufferHandle> commandBufferEntries = MemoryMarshal.Cast<byte, CommandBufferHandle>(arguments.Slice(headerSize)).Slice(0, commandBufferHeader.NumEntries);
foreach (ref CommandBufferHandle commandBufferEntry in commandBufferEntries)
{
NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, commandBufferEntry.MapHandle);
if (map == null)
{
Logger.Warning?.Print(LogClass.ServiceNv, $"Invalid handle 0x{commandBufferEntry.MapHandle:x8}!");
return NvInternalResult.InvalidInput;
}
lock (map)
{
if (map.DmaMapAddress == 0)
{
ulong va = _host1xContext.MemoryAllocator.GetFreeAddress((ulong)map.Size, out ulong freeAddressStartPosition, 1, MemoryManager.PageSize);
if (va != NvMemoryAllocator.PteUnmapped && va <= uint.MaxValue && (va + (uint)map.Size) <= uint.MaxValue)
{
_host1xContext.MemoryAllocator.AllocateRange(va, (uint)map.Size, freeAddressStartPosition);
_host1xContext.Smmu.Map(map.Address, va, (uint)map.Size, PteKind.Pitch); // FIXME: This should not use the GMMU.
map.DmaMapAddress = va;
}
else
{
map.DmaMapAddress = NvMemoryAllocator.PteUnmapped;
}
}
commandBufferEntry.MapAddress = (int)map.DmaMapAddress;
}
}
return NvInternalResult.Success;
}
private NvInternalResult UnmapCommandBuffer(Span<byte> arguments)
{
int headerSize = Unsafe.SizeOf<MapCommandBufferArguments>();
MapCommandBufferArguments commandBufferHeader = MemoryMarshal.Cast<byte, MapCommandBufferArguments>(arguments)[0];
Span<CommandBufferHandle> commandBufferEntries = MemoryMarshal.Cast<byte, CommandBufferHandle>(arguments.Slice(headerSize)).Slice(0, commandBufferHeader.NumEntries);
foreach (ref CommandBufferHandle commandBufferEntry in commandBufferEntries)
{
NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, commandBufferEntry.MapHandle);
if (map == null)
{
Logger.Warning?.Print(LogClass.ServiceNv, $"Invalid handle 0x{commandBufferEntry.MapHandle:x8}!");
return NvInternalResult.InvalidInput;
}
lock (map)
{
if (map.DmaMapAddress != 0)
{
// FIXME:
// To make unmapping work, we need separate address space per channel.
// Right now NVDEC and VIC share the GPU address space which is not correct at all.
// _host1xContext.MemoryAllocator.Free((ulong)map.DmaMapAddress, (uint)map.Size);
// map.DmaMapAddress = 0;
}
}
}
return NvInternalResult.Success;
}
private NvInternalResult SetNvMapFd(ref int nvMapFd)
{
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult SetTimeout(ref uint timeout)
{
_timeout = timeout;
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult SubmitGpfifo(Span<byte> arguments)
{
int headerSize = Unsafe.SizeOf<SubmitGpfifoArguments>();
SubmitGpfifoArguments gpfifoSubmissionHeader = MemoryMarshal.Cast<byte, SubmitGpfifoArguments>(arguments)[0];
Span<ulong> gpfifoEntries = MemoryMarshal.Cast<byte, ulong>(arguments.Slice(headerSize)).Slice(0, gpfifoSubmissionHeader.NumEntries);
return SubmitGpfifo(ref gpfifoSubmissionHeader, gpfifoEntries);
}
private NvInternalResult AllocObjCtx(ref AllocObjCtxArguments arguments)
{
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult ZcullBind(ref ZcullBindArguments arguments)
{
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult SetErrorNotifier(ref SetErrorNotifierArguments arguments)
{
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult SetPriority(ref NvChannelPriority priority)
{
switch (priority)
{
case NvChannelPriority.Low:
_timeslice = 1300; // Timeslice low priority in micro-seconds
break;
case NvChannelPriority.Medium:
_timeslice = 2600; // Timeslice medium priority in micro-seconds
break;
case NvChannelPriority.High:
_timeslice = 5200; // Timeslice high priority in micro-seconds
break;
default:
return NvInternalResult.InvalidInput;
}
Logger.Stub?.PrintStub(LogClass.ServiceNv);
// TODO: disable and preempt channel when GPU scheduler will be implemented.
return NvInternalResult.Success;
}
private NvInternalResult AllocGpfifoEx(ref AllocGpfifoExArguments arguments)
{
_channelSyncpoint.UpdateValue(_device.System.HostSyncpoint);
arguments.Fence = _channelSyncpoint;
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult AllocGpfifoEx2(ref AllocGpfifoExArguments arguments)
{
_channelSyncpoint.UpdateValue(_device.System.HostSyncpoint);
arguments.Fence = _channelSyncpoint;
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult SetTimeslice(ref uint timeslice)
{
if (timeslice < 1000 || timeslice > 50000)
{
return NvInternalResult.InvalidInput;
}
_timeslice = timeslice; // in micro-seconds
Logger.Stub?.PrintStub(LogClass.ServiceNv);
// TODO: disable and preempt channel when GPU scheduler will be implemented.
return NvInternalResult.Success;
}
private NvInternalResult SetUserData(ref ulong userData)
{
Logger.Stub?.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
protected NvInternalResult SubmitGpfifo(ref SubmitGpfifoArguments header, Span<ulong> entries)
{
if (header.Flags.HasFlag(SubmitGpfifoFlags.FenceWait) && header.Flags.HasFlag(SubmitGpfifoFlags.IncrementWithValue))
{
return NvInternalResult.InvalidInput;
}
if (header.Flags.HasFlag(SubmitGpfifoFlags.FenceWait) && !_device.System.HostSyncpoint.IsSyncpointExpired(header.Fence.Id, header.Fence.Value))
{
Channel.PushHostCommandBuffer(CreateWaitCommandBuffer(header.Fence));
}
header.Fence.Id = _channelSyncpoint.Id;
if (header.Flags.HasFlag(SubmitGpfifoFlags.FenceIncrement) || header.Flags.HasFlag(SubmitGpfifoFlags.IncrementWithValue))
{
uint incrementCount = header.Flags.HasFlag(SubmitGpfifoFlags.FenceIncrement) ? 2u : 0u;
if (header.Flags.HasFlag(SubmitGpfifoFlags.IncrementWithValue))
{
incrementCount += header.Fence.Value;
}
header.Fence.Value = _device.System.HostSyncpoint.IncrementSyncpointMaxExt(header.Fence.Id, (int)incrementCount);
}
else
{
header.Fence.Value = _device.System.HostSyncpoint.ReadSyncpointMaxValue(header.Fence.Id);
}
Channel.PushEntries(entries);
if (header.Flags.HasFlag(SubmitGpfifoFlags.FenceIncrement))
{
Channel.PushHostCommandBuffer(CreateIncrementCommandBuffer(ref header.Fence, header.Flags));
}
header.Flags = SubmitGpfifoFlags.None;
_device.Gpu.GPFifo.SignalNewEntries();
return NvInternalResult.Success;
}
public uint GetSyncpointChannel(uint index, bool isClientManaged)
{
if (ChannelSyncpoints[index] != 0)
{
return ChannelSyncpoints[index];
}
ChannelSyncpoints[index] = _device.System.HostSyncpoint.AllocateSyncpoint(isClientManaged);
return ChannelSyncpoints[index];
}
public static uint GetSyncpointDevice(NvHostSyncpt syncpointManager, uint index, bool isClientManaged)
{
if (DeviceSyncpoints[index] != 0)
{
return DeviceSyncpoints[index];
}
DeviceSyncpoints[index] = syncpointManager.AllocateSyncpoint(isClientManaged);
return DeviceSyncpoints[index];
}
private static int[] CreateWaitCommandBuffer(NvFence fence)
{
int[] commandBuffer = new int[4];
// SyncpointValue = fence.Value;
commandBuffer[0] = 0x2001001C;
commandBuffer[1] = (int)fence.Value;
// SyncpointAction(fence.id, increment: false, switch_en: true);
commandBuffer[2] = 0x2001001D;
commandBuffer[3] = (((int)fence.Id << 8) | (0 << 0) | (1 << 4));
return commandBuffer;
}
private int[] CreateIncrementCommandBuffer(ref NvFence fence, SubmitGpfifoFlags flags)
{
bool hasWfi = !flags.HasFlag(SubmitGpfifoFlags.SuppressWfi);
int[] commandBuffer;
int offset = 0;
if (hasWfi)
{
commandBuffer = new int[8];
// WaitForInterrupt(handle)
commandBuffer[offset++] = 0x2001001E;
commandBuffer[offset++] = 0x0;
}
else
{
commandBuffer = new int[6];
}
// SyncpointValue = 0x0;
commandBuffer[offset++] = 0x2001001C;
commandBuffer[offset++] = 0x0;
// Increment the syncpoint 2 times. (mitigate a hardware bug)
// SyncpointAction(fence.id, increment: true, switch_en: false);
commandBuffer[offset++] = 0x2001001D;
commandBuffer[offset++] = (((int)fence.Id << 8) | (1 << 0) | (0 << 4));
// SyncpointAction(fence.id, increment: true, switch_en: false);
commandBuffer[offset++] = 0x2001001D;
commandBuffer[offset++] = (((int)fence.Id << 8) | (1 << 0) | (0 << 4));
return commandBuffer;
}
public override void Close()
{
_host1xContext.Host1x.DestroyContext(_contextId);
Channel.Dispose();
for (int i = 0; i < MaxModuleSyncpoint; i++)
{
if (ChannelSyncpoints[i] != 0)
{
_device.System.HostSyncpoint.ReleaseSyncpoint(ChannelSyncpoints[i]);
ChannelSyncpoints[i] = 0;
}
}
_device.System.HostSyncpoint.ReleaseSyncpoint(_channelSyncpoint.Id);
_channelSyncpoint.Id = 0;
}
private static Host1xContext GetHost1XContext(GpuContext gpu, ulong pid)
{
return _host1xContextRegistry.GetOrAdd(pid, (ulong key) => new Host1xContext(gpu, key));
}
public static void Destroy()
{
foreach (Host1xContext host1xContext in _host1xContextRegistry.Values)
{
host1xContext.Dispose();
}
_host1xContextRegistry.Clear();
}
}
}