ryujinx/Ryujinx.HLE/HOS/Kernel/KMemoryRegionBlock.cs

43 lines
1.0 KiB
C#

namespace Ryujinx.HLE.HOS.Kernel
{
class KMemoryRegionBlock
{
public long[][] Masks;
public ulong FreeCount;
public int MaxLevel;
public ulong StartAligned;
public ulong SizeInBlocksTruncated;
public ulong SizeInBlocksRounded;
public int Order;
public int NextOrder;
public bool TryCoalesce(int Index, int Size)
{
long Mask = ((1L << Size) - 1) << (Index & 63);
Index /= 64;
if ((Mask & ~Masks[MaxLevel - 1][Index]) != 0)
{
return false;
}
Masks[MaxLevel - 1][Index] &= ~Mask;
for (int Level = MaxLevel - 2; Level >= 0; Level--, Index /= 64)
{
Masks[Level][Index / 64] &= ~(1L << (Index & 63));
if (Masks[Level][Index / 64] != 0)
{
break;
}
}
FreeCount -= (ulong)Size;
return true;
}
}
}