private NvInternalResult MapBufferEx(ref MapBufferExArguments arguments)
{
const string mapErrorMsg = "Failed to map fixed buffer with offset 0x{0:x16}, size 0x{1:x16} and alignment 0x{2:x16}!";
AddressSpaceContext addressSpaceContext = GetAddressSpaceContext(Context);
NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, arguments.NvMapHandle, true);
if (map == null)
{
Logger.Warning?.Print(LogClass.ServiceNv, $"Invalid NvMap handle 0x{arguments.NvMapHandle:x8}!");
return(NvInternalResult.InvalidInput);
}
ulong pageSize = (ulong)arguments.PageSize;
if (pageSize == 0)
{
pageSize = (ulong)map.Align;
}
long physicalAddress;
if ((arguments.Flags & AddressSpaceFlags.RemapSubRange) != 0)
{
lock (addressSpaceContext)
{
if (addressSpaceContext.TryGetMapPhysicalAddress(arguments.Offset, out physicalAddress))
{
long virtualAddress = arguments.Offset + arguments.BufferOffset;
physicalAddress += arguments.BufferOffset;
addressSpaceContext.Gmm.Map((ulong)physicalAddress, (ulong)virtualAddress, (ulong)arguments.MappingSize);
if (virtualAddress < 0)
{
string message = string.Format(mapErrorMsg, virtualAddress, arguments.MappingSize, pageSize);
Logger.Warning?.Print(LogClass.ServiceNv, message);
return(NvInternalResult.InvalidInput);
}
return(NvInternalResult.Success);
}
else
{
Logger.Warning?.Print(LogClass.ServiceNv, $"Address 0x{arguments.Offset:x16} not mapped!");
return(NvInternalResult.InvalidInput);
}
}
}
physicalAddress = map.Address + arguments.BufferOffset;
long size = arguments.MappingSize;
if (size == 0)
{
size = (uint)map.Size;
}
NvInternalResult result = NvInternalResult.Success;
lock (addressSpaceContext)
{
// Note: When the fixed offset flag is not set,
// the Offset field holds the alignment size instead.
bool virtualAddressAllocated = (arguments.Flags & AddressSpaceFlags.FixedOffset) == 0;
if (!virtualAddressAllocated)
{
if (addressSpaceContext.ValidateFixedBuffer(arguments.Offset, size, pageSize))
{
addressSpaceContext.Gmm.Map((ulong)physicalAddress, (ulong)arguments.Offset, (ulong)size);
}
else
{
string message = string.Format(mapErrorMsg, arguments.Offset, size, pageSize);
Logger.Warning?.Print(LogClass.ServiceNv, message);
result = NvInternalResult.InvalidInput;
}
}
else
{
ulong va = _memoryAllocator.GetFreeAddress((ulong)size, out ulong freeAddressStartPosition, (ulong)pageSize);
if (va != NvMemoryAllocator.PteUnmapped)
{
_memoryAllocator.AllocateRange(va, (ulong)size, freeAddressStartPosition);
}
addressSpaceContext.Gmm.Map((ulong)physicalAddress, va, (ulong)size);
arguments.Offset = (long)va;
}
if (arguments.Offset < 0)
{
arguments.Offset = 0;
Logger.Warning?.Print(LogClass.ServiceNv, $"Failed to map size 0x{size:x16}!");
result = NvInternalResult.InvalidInput;
}
else
{
addressSpaceContext.AddMap(arguments.Offset, size, physicalAddress, virtualAddressAllocated);
}
}
return(result);
}
private NvInternalResult MapBufferEx(ref MapBufferExArguments arguments)
{
const string mapErrorMsg = "Failed to map fixed buffer with offset 0x{0:x16} and size 0x{1:x16}!";
AddressSpaceContext addressSpaceContext = GetAddressSpaceContext(Owner);
NvMapHandle map = NvMapDeviceFile.GetMapFromHandle(Owner, arguments.NvMapHandle, true);
if (map == null)
{
Logger.PrintWarning(LogClass.ServiceNv, $"Invalid NvMap handle 0x{arguments.NvMapHandle:x8}!");
return(NvInternalResult.InvalidInput);
}
long physicalAddress;
if ((arguments.Flags & AddressSpaceFlags.RemapSubRange) != 0)
{
lock (addressSpaceContext)
{
if (addressSpaceContext.TryGetMapPhysicalAddress(arguments.Offset, out physicalAddress))
{
long virtualAddress = arguments.Offset + arguments.BufferOffset;
physicalAddress += arguments.BufferOffset;
if (addressSpaceContext.Vmm.Map(physicalAddress, virtualAddress, arguments.MappingSize) < 0)
{
string message = string.Format(mapErrorMsg, virtualAddress, arguments.MappingSize);
Logger.PrintWarning(LogClass.ServiceNv, message);
return(NvInternalResult.InvalidInput);
}
return(NvInternalResult.Success);
}
else
{
Logger.PrintWarning(LogClass.ServiceNv, $"Address 0x{arguments.Offset:x16} not mapped!");
return(NvInternalResult.InvalidInput);
}
}
}
physicalAddress = map.Address + arguments.BufferOffset;
long size = arguments.MappingSize;
if (size == 0)
{
size = (uint)map.Size;
}
NvInternalResult result = NvInternalResult.Success;
lock (addressSpaceContext)
{
// Note: When the fixed offset flag is not set,
// the Offset field holds the alignment size instead.
bool virtualAddressAllocated = (arguments.Flags & AddressSpaceFlags.FixedOffset) == 0;
if (!virtualAddressAllocated)
{
if (addressSpaceContext.ValidateFixedBuffer(arguments.Offset, size))
{
arguments.Offset = addressSpaceContext.Vmm.Map(physicalAddress, arguments.Offset, size);
}
else
{
string message = string.Format(mapErrorMsg, arguments.Offset, size);
Logger.PrintWarning(LogClass.ServiceNv, message);
result = NvInternalResult.InvalidInput;
}
}
else
{
arguments.Offset = addressSpaceContext.Vmm.Map(physicalAddress, size);
}
if (arguments.Offset < 0)
{
arguments.Offset = 0;
Logger.PrintWarning(LogClass.ServiceNv, $"Failed to map size 0x{size:x16}!");
result = NvInternalResult.InvalidInput;
}
else
{
addressSpaceContext.AddMap(arguments.Offset, size, physicalAddress, virtualAddressAllocated);
}
}
return(result);
}
