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https://github.com/ryujinx-mirror/ryujinx.git
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d536cc8ae6
`MB` and `GB` can either be interpreted as having base-10 units, or base-2. `MiB` and `GiB` removes this discrepancy so that units of memory are always interpreted using base-2 units.
401 lines
14 KiB
C#
401 lines
14 KiB
C#
using Ryujinx.Common.Logging;
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using Ryujinx.Graphics.Gpu.Memory;
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using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostAsGpu.Types;
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using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostChannel;
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using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap;
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using Ryujinx.Memory;
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using System;
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using System.Diagnostics;
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using System.Runtime.CompilerServices;
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namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostAsGpu
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{
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class NvHostAsGpuDeviceFile : NvDeviceFile
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{
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private const uint SmallPageSize = 0x1000;
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private const uint BigPageSize = 0x10000;
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private static readonly uint[] _pageSizes = new uint[] { SmallPageSize, BigPageSize };
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private const ulong SmallRegionLimit = 0x400000000UL; // 16 GiB
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private const ulong DefaultUserSize = 1UL << 37;
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private struct VmRegion
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{
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public ulong Start { get; }
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public ulong Limit { get; }
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public VmRegion(ulong start, ulong limit)
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{
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Start = start;
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Limit = limit;
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}
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}
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private static readonly VmRegion[] _vmRegions = new VmRegion[]
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{
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new VmRegion((ulong)BigPageSize << 16, SmallRegionLimit),
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new VmRegion(SmallRegionLimit, DefaultUserSize)
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};
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private readonly AddressSpaceContext _asContext;
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private readonly NvMemoryAllocator _memoryAllocator;
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public NvHostAsGpuDeviceFile(ServiceCtx context, IVirtualMemoryManager memory, ulong owner) : base(context, owner)
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{
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_asContext = new AddressSpaceContext(context.Device.Gpu.CreateMemoryManager(owner));
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_memoryAllocator = new NvMemoryAllocator();
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}
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public override NvInternalResult Ioctl(NvIoctl command, Span<byte> arguments)
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{
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NvInternalResult result = NvInternalResult.NotImplemented;
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if (command.Type == NvIoctl.NvGpuAsMagic)
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{
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switch (command.Number)
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{
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case 0x01:
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result = CallIoctlMethod<BindChannelArguments>(BindChannel, arguments);
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break;
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case 0x02:
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result = CallIoctlMethod<AllocSpaceArguments>(AllocSpace, arguments);
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break;
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case 0x03:
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result = CallIoctlMethod<FreeSpaceArguments>(FreeSpace, arguments);
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break;
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case 0x05:
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result = CallIoctlMethod<UnmapBufferArguments>(UnmapBuffer, arguments);
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break;
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case 0x06:
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result = CallIoctlMethod<MapBufferExArguments>(MapBufferEx, arguments);
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break;
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case 0x08:
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result = CallIoctlMethod<GetVaRegionsArguments>(GetVaRegions, arguments);
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break;
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case 0x09:
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result = CallIoctlMethod<InitializeExArguments>(InitializeEx, arguments);
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break;
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case 0x14:
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result = CallIoctlMethod<RemapArguments>(Remap, arguments);
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break;
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}
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}
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return result;
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}
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public override NvInternalResult Ioctl3(NvIoctl command, Span<byte> arguments, Span<byte> inlineOutBuffer)
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{
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NvInternalResult result = NvInternalResult.NotImplemented;
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if (command.Type == NvIoctl.NvGpuAsMagic)
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{
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switch (command.Number)
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{
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case 0x08:
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// This is the same as the one in ioctl as inlineOutBuffer is empty.
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result = CallIoctlMethod<GetVaRegionsArguments>(GetVaRegions, arguments);
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break;
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}
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}
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return result;
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}
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private NvInternalResult BindChannel(ref BindChannelArguments arguments)
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{
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var channelDeviceFile = INvDrvServices.DeviceFileIdRegistry.GetData<NvHostChannelDeviceFile>(arguments.Fd);
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if (channelDeviceFile == null)
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{
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// TODO: Return invalid Fd error.
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}
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channelDeviceFile.Channel.BindMemory(_asContext.Gmm);
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return NvInternalResult.Success;
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}
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private NvInternalResult AllocSpace(ref AllocSpaceArguments arguments)
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{
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ulong size = (ulong)arguments.Pages * (ulong)arguments.PageSize;
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NvInternalResult result = NvInternalResult.Success;
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lock (_asContext)
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{
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// Note: When the fixed offset flag is not set,
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// the Offset field holds the alignment size instead.
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if ((arguments.Flags & AddressSpaceFlags.FixedOffset) != 0)
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{
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bool regionInUse = _memoryAllocator.IsRegionInUse(arguments.Offset, size, out ulong freeAddressStartPosition);
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ulong address;
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if (!regionInUse)
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{
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_memoryAllocator.AllocateRange(arguments.Offset, size, freeAddressStartPosition);
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address = freeAddressStartPosition;
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}
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else
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{
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address = NvMemoryAllocator.PteUnmapped;
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}
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arguments.Offset = address;
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}
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else
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{
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ulong address = _memoryAllocator.GetFreeAddress(size, out ulong freeAddressStartPosition, arguments.Offset);
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if (address != NvMemoryAllocator.PteUnmapped)
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{
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_memoryAllocator.AllocateRange(address, size, freeAddressStartPosition);
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}
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arguments.Offset = address;
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}
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if (arguments.Offset == NvMemoryAllocator.PteUnmapped)
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{
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arguments.Offset = 0;
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Logger.Warning?.Print(LogClass.ServiceNv, $"Failed to allocate size {size:x16}!");
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result = NvInternalResult.OutOfMemory;
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}
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else
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{
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_asContext.AddReservation(arguments.Offset, size);
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}
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}
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return result;
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}
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private NvInternalResult FreeSpace(ref FreeSpaceArguments arguments)
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{
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ulong size = (ulong)arguments.Pages * (ulong)arguments.PageSize;
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NvInternalResult result = NvInternalResult.Success;
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lock (_asContext)
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{
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if (_asContext.RemoveReservation(arguments.Offset))
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{
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_memoryAllocator.DeallocateRange(arguments.Offset, size);
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_asContext.Gmm.Unmap(arguments.Offset, size);
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}
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else
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{
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Logger.Warning?.Print(LogClass.ServiceNv,
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$"Failed to free offset 0x{arguments.Offset:x16} size 0x{size:x16}!");
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result = NvInternalResult.InvalidInput;
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}
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}
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return result;
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}
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private NvInternalResult UnmapBuffer(ref UnmapBufferArguments arguments)
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{
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lock (_asContext)
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{
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if (_asContext.RemoveMap(arguments.Offset, out ulong size))
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{
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if (size != 0)
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{
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_memoryAllocator.DeallocateRange(arguments.Offset, size);
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_asContext.Gmm.Unmap(arguments.Offset, size);
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}
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}
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else
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{
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Logger.Warning?.Print(LogClass.ServiceNv, $"Invalid buffer offset {arguments.Offset:x16}!");
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}
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}
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return NvInternalResult.Success;
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}
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private NvInternalResult MapBufferEx(ref MapBufferExArguments arguments)
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{
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const string MapErrorMsg = "Failed to map fixed buffer with offset 0x{0:x16}, size 0x{1:x16} and alignment 0x{2:x16}!";
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ulong physicalAddress;
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if ((arguments.Flags & AddressSpaceFlags.RemapSubRange) != 0)
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{
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lock (_asContext)
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{
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if (_asContext.TryGetMapPhysicalAddress(arguments.Offset, out physicalAddress))
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{
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ulong virtualAddress = arguments.Offset + arguments.BufferOffset;
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physicalAddress += arguments.BufferOffset;
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_asContext.Gmm.Map(physicalAddress, virtualAddress, arguments.MappingSize, (PteKind)arguments.Kind);
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return NvInternalResult.Success;
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}
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else
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{
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Logger.Warning?.Print(LogClass.ServiceNv, $"Address 0x{arguments.Offset:x16} not mapped!");
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return NvInternalResult.InvalidInput;
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}
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}
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}
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NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, arguments.NvMapHandle);
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if (map == null)
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{
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Logger.Warning?.Print(LogClass.ServiceNv, $"Invalid NvMap handle 0x{arguments.NvMapHandle:x8}!");
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return NvInternalResult.InvalidInput;
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}
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ulong pageSize = (ulong)arguments.PageSize;
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if (pageSize == 0)
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{
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pageSize = (ulong)map.Align;
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}
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physicalAddress = map.Address + arguments.BufferOffset;
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ulong size = arguments.MappingSize;
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if (size == 0)
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{
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size = (uint)map.Size;
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}
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NvInternalResult result = NvInternalResult.Success;
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lock (_asContext)
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{
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// Note: When the fixed offset flag is not set,
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// the Offset field holds the alignment size instead.
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bool virtualAddressAllocated = (arguments.Flags & AddressSpaceFlags.FixedOffset) == 0;
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if (!virtualAddressAllocated)
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{
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if (_asContext.ValidateFixedBuffer(arguments.Offset, size, pageSize))
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{
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_asContext.Gmm.Map(physicalAddress, arguments.Offset, size, (PteKind)arguments.Kind);
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}
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else
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{
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string message = string.Format(MapErrorMsg, arguments.Offset, size, pageSize);
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Logger.Warning?.Print(LogClass.ServiceNv, message);
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result = NvInternalResult.InvalidInput;
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}
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}
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else
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{
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ulong va = _memoryAllocator.GetFreeAddress(size, out ulong freeAddressStartPosition, pageSize);
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if (va != NvMemoryAllocator.PteUnmapped)
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{
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_memoryAllocator.AllocateRange(va, size, freeAddressStartPosition);
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}
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_asContext.Gmm.Map(physicalAddress, va, size, (PteKind)arguments.Kind);
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arguments.Offset = va;
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}
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if (arguments.Offset == NvMemoryAllocator.PteUnmapped)
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{
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arguments.Offset = 0;
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Logger.Warning?.Print(LogClass.ServiceNv, $"Failed to map size 0x{size:x16}!");
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result = NvInternalResult.InvalidInput;
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}
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else
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{
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_asContext.AddMap(arguments.Offset, size, physicalAddress, virtualAddressAllocated);
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}
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}
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return result;
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}
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private NvInternalResult GetVaRegions(ref GetVaRegionsArguments arguments)
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{
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int vaRegionStructSize = Unsafe.SizeOf<VaRegion>();
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Debug.Assert(vaRegionStructSize == 0x18);
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Debug.Assert(_pageSizes.Length == 2);
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uint writeEntries = (uint)(arguments.BufferSize / vaRegionStructSize);
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if (writeEntries > _pageSizes.Length)
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{
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writeEntries = (uint)_pageSizes.Length;
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}
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for (uint i = 0; i < writeEntries; i++)
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{
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ref var region = ref arguments.Regions[(int)i];
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var vmRegion = _vmRegions[i];
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uint pageSize = _pageSizes[i];
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region.PageSize = pageSize;
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region.Offset = vmRegion.Start;
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region.Pages = (vmRegion.Limit - vmRegion.Start) / pageSize;
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region.Padding = 0;
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}
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arguments.BufferSize = (uint)(_pageSizes.Length * vaRegionStructSize);
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return NvInternalResult.Success;
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}
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private NvInternalResult InitializeEx(ref InitializeExArguments arguments)
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{
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Logger.Stub?.PrintStub(LogClass.ServiceNv);
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return NvInternalResult.Success;
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}
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private NvInternalResult Remap(Span<RemapArguments> arguments)
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{
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MemoryManager gmm = _asContext.Gmm;
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for (int index = 0; index < arguments.Length; index++)
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{
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ref RemapArguments argument = ref arguments[index];
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ulong gpuVa = (ulong)argument.GpuOffset << 16;
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ulong size = (ulong)argument.Pages << 16;
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int nvmapHandle = argument.NvMapHandle;
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if (nvmapHandle == 0)
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{
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gmm.Unmap(gpuVa, size);
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}
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else
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{
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ulong mapOffs = (ulong)argument.MapOffset << 16;
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PteKind kind = (PteKind)argument.Kind;
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NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, nvmapHandle);
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if (map == null)
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{
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Logger.Warning?.Print(LogClass.ServiceNv, $"Invalid NvMap handle 0x{nvmapHandle:x8}!");
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return NvInternalResult.InvalidInput;
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}
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gmm.Map(mapOffs + map.Address, gpuVa, size, kind);
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}
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}
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return NvInternalResult.Success;
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}
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public override void Close() { }
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}
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}
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