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);
MemoryManager gmm = NvHostAsGpuDeviceFile.GetAddressSpaceContext(Context).Gmm;
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.
// gmm.Free((ulong)map.DmaMapAddress, (uint)map.Size);
// map.DmaMapAddress = 0;
}
}
}
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);
MemoryManager gmm = NvHostAsGpuDeviceFile.GetAddressSpaceContext(Context).Gmm;
foreach (ref CommandBufferHandle commandBufferEntry in commandBufferEntries)
{
NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, commandBufferEntry.MapHandle);
if (map == null)
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid handle 0x{commandBufferEntry.MapHandle:x8}!");
return(NvInternalResult.InvalidInput);
}
lock (map)
{
if (map.DmaMapAddress != 0)
{
gmm.Free((ulong)map.DmaMapAddress, (uint)map.Size);
map.DmaMapAddress = 0;
}
}
}
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);
MemoryManager gmm = NvHostAsGpuDeviceFile.GetAddressSpaceContext(Context).Gmm;
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 = _memoryAllocator.GetFreeAddress((ulong)map.Size, out ulong freeAddressStartPosition, 1, MemoryManager.PageSize);
if (va != NvMemoryAllocator.PteUnmapped && va <= uint.MaxValue && (va + (uint)map.Size) <= uint.MaxValue)
{
_memoryAllocator.AllocateRange(va, (uint)map.Size, freeAddressStartPosition);
gmm.Map(map.Address, va, (uint)map.Size);
map.DmaMapAddress = va;
}
else
{
map.DmaMapAddress = NvMemoryAllocator.PteUnmapped;
}
}
commandBufferEntry.MapAddress = (int)map.DmaMapAddress;
}
}
return(NvInternalResult.Success);
}
