Ryujinx/Ryujinx.Core/OsHle/Services/Nv/NvGpuAS/NvGpuASIoctl.cs

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using ChocolArm64.Memory;
using Ryujinx.Core.Gpu;
using Ryujinx.Core.Logging;
using Ryujinx.Core.OsHle.Services.Nv.NvMap;
using System;
using System.Collections.Concurrent;
namespace Ryujinx.Core.OsHle.Services.Nv.NvGpuAS
{
class NvGpuASIoctl
{
private const int FlagFixedOffset = 1;
private static ConcurrentDictionary<Process, NvGpuVmm> Vmms;
static NvGpuASIoctl()
{
Vmms = new ConcurrentDictionary<Process, NvGpuVmm>();
}
public static int ProcessIoctl(ServiceCtx Context, int Cmd)
{
switch (Cmd & 0xffff)
{
case 0x4101: return BindChannel (Context);
case 0x4102: return AllocSpace (Context);
case 0x4103: return FreeSpace (Context);
case 0x4105: return UnmapBuffer (Context);
case 0x4106: return MapBufferEx (Context);
case 0x4108: return GetVaRegions(Context);
case 0x4109: return InitializeEx(Context);
case 0x4114: return Remap (Context);
}
throw new NotImplementedException(Cmd.ToString("x8"));
}
private static int BindChannel(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
Context.Ns.Log.PrintStub(LogClass.ServiceNv, "Stubbed.");
return NvResult.Success;
}
private static int AllocSpace(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASAllocSpace Args = AMemoryHelper.Read<NvGpuASAllocSpace>(Context.Memory, InputPosition);
NvGpuVmm Vmm = GetVmm(Context);
ulong Size = (ulong)Args.Pages *
(ulong)Args.PageSize;
if ((Args.Flags & FlagFixedOffset) != 0)
{
Args.Offset = Vmm.Reserve(Args.Offset, (long)Size, 1);
}
else
{
Args.Offset = Vmm.Reserve((long)Size, 1);
}
int Result = NvResult.Success;
if (Args.Offset < 0)
{
Args.Offset = 0;
Context.Ns.Log.PrintWarning(LogClass.ServiceNv, $"No memory to allocate size {Size:x16}!");
Result = NvResult.OutOfMemory;
}
AMemoryHelper.Write(Context.Memory, OutputPosition, Args);
return Result;
}
private static int FreeSpace(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASAllocSpace Args = AMemoryHelper.Read<NvGpuASAllocSpace>(Context.Memory, InputPosition);
NvGpuVmm Vmm = GetVmm(Context);
ulong Size = (ulong)Args.Pages *
(ulong)Args.PageSize;
Vmm.Free(Args.Offset, (long)Size);
return NvResult.Success;
}
private static int UnmapBuffer(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASUnmapBuffer Args = AMemoryHelper.Read<NvGpuASUnmapBuffer>(Context.Memory, InputPosition);
NvGpuVmm Vmm = GetVmm(Context);
if (!Vmm.Unmap(Args.Offset))
{
Context.Ns.Log.PrintWarning(LogClass.ServiceNv, $"Invalid buffer offset {Args.Offset:x16}!");
}
return NvResult.Success;
}
private static int MapBufferEx(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASMapBufferEx Args = AMemoryHelper.Read<NvGpuASMapBufferEx>(Context.Memory, InputPosition);
NvGpuVmm Vmm = GetVmm(Context);
NvMapHandle Map = NvMapIoctl.GetNvMapWithFb(Context, Args.NvMapHandle);
if (Map == null)
{
Context.Ns.Log.PrintWarning(LogClass.ServiceNv, $"Invalid NvMap handle 0x{Args.NvMapHandle:x8}!");
return NvResult.InvalidInput;
}
long PA = Map.Address + Args.BufferOffset;
long Size = Args.MappingSize;
if (Size == 0)
{
Size = (uint)Map.Size;
}
int Result = NvResult.Success;
//Note: When the fixed offset flag is not set,
//the Offset field holds the alignment size instead.
if ((Args.Flags & FlagFixedOffset) != 0)
{
long MapEnd = Args.Offset + Args.MappingSize;
if ((ulong)MapEnd <= (ulong)Args.Offset)
{
Context.Ns.Log.PrintWarning(LogClass.ServiceNv, $"Offset 0x{Args.Offset:x16} and size 0x{Args.MappingSize:x16} results in a overflow!");
return NvResult.InvalidInput;
}
if ((Args.Offset & NvGpuVmm.PageMask) != 0)
{
Context.Ns.Log.PrintWarning(LogClass.ServiceNv, $"Offset 0x{Args.Offset:x16} is not page aligned!");
return NvResult.InvalidInput;
}
Args.Offset = Vmm.Map(PA, Args.Offset, Size);
}
else
{
Args.Offset = Vmm.Map(PA, Size);
if (Args.Offset < 0)
{
Args.Offset = 0;
Context.Ns.Log.PrintWarning(LogClass.ServiceNv, $"No memory to map size {Args.MappingSize:x16}!");
Result = NvResult.InvalidInput;
}
}
AMemoryHelper.Write(Context.Memory, OutputPosition, Args);
return Result;
}
private static int GetVaRegions(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
Context.Ns.Log.PrintStub(LogClass.ServiceNv, "Stubbed.");
return NvResult.Success;
}
private static int InitializeEx(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
Context.Ns.Log.PrintStub(LogClass.ServiceNv, "Stubbed.");
return NvResult.Success;
}
private static int Remap(ServiceCtx Context)
{
long InputPosition = Context.Request.GetBufferType0x21().Position;
NvGpuASRemap Args = AMemoryHelper.Read<NvGpuASRemap>(Context.Memory, InputPosition);
NvGpuVmm Vmm = GetVmm(Context);
NvMapHandle Map = NvMapIoctl.GetNvMapWithFb(Context, Args.NvMapHandle);
if (Map == null)
{
Context.Ns.Log.PrintWarning(LogClass.ServiceNv, $"Invalid NvMap handle 0x{Args.NvMapHandle:x8}!");
return NvResult.InvalidInput;
}
//FIXME: This is most likely wrong...
Vmm.Map(Map.Address, (long)(uint)Args.Offset << 16,
(long)(uint)Args.Pages << 16);
return NvResult.Success;
}
public static NvGpuVmm GetVmm(ServiceCtx Context)
{
return Vmms.GetOrAdd(Context.Process, (Key) => new NvGpuVmm(Context.Memory));
}
public static void UnloadProcess(Process Process)
{
Vmms.TryRemove(Process, out _);
}
}
}