RtlInitializeBitMap

VOID __stdcall RtlInitializeBitMap(RTL_BITMAP *BitMapHeader, UINT64 *BitMapBuffer, UINT64 SizeOfBitMap){
  BitMapHeader->SizeOfBitMap = SizeOfBitMap;
  BitMapHeader->Buffer = (unsigned int *)BitMapBuffer;
}

Referenced by:

HsaInitializeInterruptRemapping