private NvInternalResult AllocSpace(ref AllocSpaceArguments arguments)
{
AddressSpaceContext addressSpaceContext = GetAddressSpaceContext(Context);
ulong size = (ulong)arguments.Pages * (ulong)arguments.PageSize;
NvInternalResult result = NvInternalResult.Success;
lock (addressSpaceContext)
{
// Note: When the fixed offset flag is not set,
// the Offset field holds the alignment size instead.
if ((arguments.Flags & AddressSpaceFlags.FixedOffset) != 0)
{
bool regionInUse = _memoryAllocator.IsRegionInUse(arguments.Offset, size, out ulong freeAddressStartPosition);
ulong address;
if (!regionInUse)
{
_memoryAllocator.AllocateRange(arguments.Offset, size, freeAddressStartPosition);
address = freeAddressStartPosition;
}
else
{
address = NvMemoryAllocator.PteUnmapped;
}
arguments.Offset = address;
}
else
{
ulong address = _memoryAllocator.GetFreeAddress(size, out ulong freeAddressStartPosition, arguments.Offset);
if (address != NvMemoryAllocator.PteUnmapped)
{
_memoryAllocator.AllocateRange(address, size, freeAddressStartPosition);
}
arguments.Offset = address;
}
if (arguments.Offset == NvMemoryAllocator.PteUnmapped)
{
arguments.Offset = 0;
Logger.Warning?.Print(LogClass.ServiceNv, $"Failed to allocate size {size:x16}!");
result = NvInternalResult.OutOfMemory;
}
else
{
addressSpaceContext.AddReservation(arguments.Offset, size);
}
}
return(result);
}
private NvInternalResult AllocSpace(ref AllocSpaceArguments arguments)
{
AddressSpaceContext addressSpaceContext = GetAddressSpaceContext(Context);
ulong size = (ulong)arguments.Pages * (ulong)arguments.PageSize;
NvInternalResult result = NvInternalResult.Success;
lock (addressSpaceContext)
{
// Note: When the fixed offset flag is not set,
// the Offset field holds the alignment size instead.
if ((arguments.Flags & AddressSpaceFlags.FixedOffset) != 0)
{
arguments.Offset = (long)addressSpaceContext.Gmm.ReserveFixed((ulong)arguments.Offset, size);
}
else
{
arguments.Offset = (long)addressSpaceContext.Gmm.Reserve((ulong)size, (ulong)arguments.Offset);
}
if (arguments.Offset < 0)
{
arguments.Offset = 0;
Logger.PrintWarning(LogClass.ServiceNv, $"Failed to allocate size {size:x16}!");
result = NvInternalResult.OutOfMemory;
}
else
{
addressSpaceContext.AddReservation(arguments.Offset, (long)size);
}
}
return(result);
}