Rewrite nvservices (#800)

* Start rewriting nvservices internals

TODO:

- nvgpu device interface
- nvhost generic device interface

* Some clean up and fixes

- Make sure to remove the fd of a closed channel.
- NvFileDevice now doesn't implement Disposable as it was never used.
- Rename NvHostCtrlGetConfigurationArgument to GetConfigurationArguments
to follow calling convention.
- Make sure to check every ioctls magic.

* Finalize migration for ioctl standard variant

TODO: ioctl2 migration

* Implement SubmitGpfifoEx and fix nvdec

* Implement Ioctl3

* Implement some ioctl3 required by recent games

* Remove unused code and outdated comments

* Return valid event handles with QueryEvent

Also add an exception for unimplemented event ids.

This commit doesn't implement accurately the events, this only define
different events for different event ids.

* Rename all occurance of FileDevice to DeviceFile

* Restub SetClientPid to not cause regressions

* Address comments

* Remove GlobalStateTable

* Address comments

* Align variables in ioctl3

* Some missing alignments

* GetVaRegionsArguments realign

* Make Owner public in NvDeviceFile

* Address LDj3SNuD's comments

Ryujinx.HLE/HOS/Services/Android/NvFlinger.cs

@@ -2,7 +2,7 @@ using Ryujinx.Common.Logging;
 using Ryujinx.Graphics.Gal;
 using Ryujinx.Graphics.Memory;
 using Ryujinx.HLE.HOS.Kernel.Threading;
-using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvGpuAS;
+using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostAsGpu;
 using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvMap;
 using System;
 using System.Collections.Generic;
@@ -290,7 +290,7 @@ namespace Ryujinx.HLE.HOS.Services.Android
 
             int bufferOffset = _bufferQueue[slot].Data.Buffer.Surfaces[0].Offset;
 
-            NvMapHandle map = NvMapIoctl.GetNvMap(context, nvMapHandle);
+            NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(context.Process, nvMapHandle);
 
             long fbAddr = map.Address + bufferOffset;
 
@@ -312,7 +312,7 @@ namespace Ryujinx.HLE.HOS.Services.Android
             int right  = crop.Right;
             int bottom = crop.Bottom;
 
-            NvGpuVmm vmm = NvGpuASIoctl.GetASCtx(context).Vmm;
+            NvGpuVmm vmm = NvHostAsGpuDeviceFile.GetAddressSpaceContext(context.Process).Vmm;
 
             _renderer.QueueAction(() =>
             {