private static int MapBufferEx(ServiceCtx Context)
{
const string MapErrorMsg = "Failed to map fixed buffer with offset 0x{0:x16} and size 0x{1:x16}!";
long InputPosition = Context.Request.GetBufferType0x21().Position;
long OutputPosition = Context.Request.GetBufferType0x22().Position;
NvGpuASMapBufferEx Args = AMemoryHelper.Read <NvGpuASMapBufferEx>(Context.Memory, InputPosition);
NvGpuASCtx ASCtx = GetASCtx(Context);
NvMapHandle Map = NvMapIoctl.GetNvMapWithFb(Context, Args.NvMapHandle);
if (Map == null)
{
Context.Device.Log.PrintWarning(LogClass.ServiceNv, $"Invalid NvMap handle 0x{Args.NvMapHandle:x8}!");
return(NvResult.InvalidInput);
}
long PA;
if ((Args.Flags & FlagRemapSubRange) != 0)
{
lock (ASCtx)
{
if (ASCtx.TryGetMapPhysicalAddress(Args.Offset, out PA))
{
long VA = Args.Offset + Args.BufferOffset;
PA += Args.BufferOffset;
if (ASCtx.Vmm.Map(PA, VA, Args.MappingSize) < 0)
{
string Msg = string.Format(MapErrorMsg, VA, Args.MappingSize);
Context.Device.Log.PrintWarning(LogClass.ServiceNv, Msg);
return(NvResult.InvalidInput);
}
return(NvResult.Success);
}
else
{
Context.Device.Log.PrintWarning(LogClass.ServiceNv, $"Address 0x{Args.Offset:x16} not mapped!");
return(NvResult.InvalidInput);
}
}
}
PA = Map.Address + Args.BufferOffset;
long Size = Args.MappingSize;
if (Size == 0)
{
Size = (uint)Map.Size;
}
int Result = NvResult.Success;
lock (ASCtx)
{
//Note: When the fixed offset flag is not set,
//the Offset field holds the alignment size instead.
bool VaAllocated = (Args.Flags & FlagFixedOffset) == 0;
if (!VaAllocated)
{
if (ASCtx.ValidateFixedBuffer(Args.Offset, Size))
{
Args.Offset = ASCtx.Vmm.Map(PA, Args.Offset, Size);
}
else
{
string Msg = string.Format(MapErrorMsg, Args.Offset, Size);
Context.Device.Log.PrintWarning(LogClass.ServiceNv, Msg);
Result = NvResult.InvalidInput;
}
}
else
{
Args.Offset = ASCtx.Vmm.Map(PA, Size);
}
if (Args.Offset < 0)
{
Args.Offset = 0;
Context.Device.Log.PrintWarning(LogClass.ServiceNv, $"Failed to map size 0x{Size:x16}!");
Result = NvResult.InvalidInput;
}
else
{
ASCtx.AddMap(Args.Offset, Size, PA, VaAllocated);
}
}
AMemoryHelper.Write(Context.Memory, OutputPosition, Args);
return(Result);
}
private static int MapBufferEx(ServiceCtx context)
{
const string mapErrorMsg = "Failed to map fixed buffer with offset 0x{0:x16} and size 0x{1:x16}!";
long inputPosition = context.Request.GetBufferType0x21().Position;
long outputPosition = context.Request.GetBufferType0x22().Position;
NvGpuASMapBufferEx args = MemoryHelper.Read <NvGpuASMapBufferEx>(context.Memory, inputPosition);
NvGpuASCtx asCtx = GetASCtx(context);
NvMapHandle map = NvMapIoctl.GetNvMapWithFb(context, args.NvMapHandle);
if (map == null)
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid NvMap handle 0x{args.NvMapHandle:x8}!");
return(NvResult.InvalidInput);
}
long pa;
if ((args.Flags & FlagRemapSubRange) != 0)
{
lock (asCtx)
{
if (asCtx.TryGetMapPhysicalAddress(args.Offset, out pa))
{
long va = args.Offset + args.BufferOffset;
pa += args.BufferOffset;
if (asCtx.Vmm.Map(pa, va, args.MappingSize) < 0)
{
string msg = string.Format(mapErrorMsg, va, args.MappingSize);
Logger.PrintWarning(LogClass.ServiceNv, msg);
return(NvResult.InvalidInput);
}
return(NvResult.Success);
}
else
{
Logger.PrintWarning(LogClass.ServiceNv, $"Address 0x{args.Offset:x16} not mapped!");
return(NvResult.InvalidInput);
}
}
}
pa = map.Address + args.BufferOffset;
long size = args.MappingSize;
if (size == 0)
{
size = (uint)map.Size;
}
int result = NvResult.Success;
lock (asCtx)
{
// Note: When the fixed offset flag is not set,
// the Offset field holds the alignment size instead.
bool vaAllocated = (args.Flags & FlagFixedOffset) == 0;
if (!vaAllocated)
{
if (asCtx.ValidateFixedBuffer(args.Offset, size))
{
args.Offset = asCtx.Vmm.Map(pa, args.Offset, size);
}
else
{
string msg = string.Format(mapErrorMsg, args.Offset, size);
Logger.PrintWarning(LogClass.ServiceNv, msg);
result = NvResult.InvalidInput;
}
}
else
{
args.Offset = asCtx.Vmm.Map(pa, size);
}
if (args.Offset < 0)
{
args.Offset = 0;
Logger.PrintWarning(LogClass.ServiceNv, $"Failed to map size 0x{size:x16}!");
result = NvResult.InvalidInput;
}
else
{
asCtx.AddMap(args.Offset, size, pa, vaAllocated);
}
}
MemoryHelper.Write(context.Memory, outputPosition, args);
return(result);
}