iokit/Kernel/IOBufferMemoryDescriptor.cpp

108     int options = 0; // KMA_LOMEM;
110 				page_size, 0, options);
281                                IOOptionBits options,
287     return (initWithPhysicalMask(inTask, options, capacity, alignment, physicalMask));
293 				IOOptionBits      options,
310     _options   	      = options;
324     // Grab IOMD bits from the Buffer MD options
325     iomdOptions  |= (options & kIOBufferDescriptorMemoryFlags);
327     if (!(kIOMemoryMapperNone & options))
343     if ((options & (kIOMemorySharingTypeMask | kIOMapCacheMask | kIOMemoryClearEncrypt)) && (alignment < page_size))
350 	options |= kIOMemoryPhysicallyContiguous;
354     if ((inTask != kernel_task) && !(options & kIOMemoryPageable))
373     switch (options & kIOMapCacheMask)
401     if (options & kIOMemoryPageable)
410 	if (options & kIOMemoryPurgeable)
424 	bool contig = (0 != (options & kIOMemoryHostPhysicallyContiguous));
426 	if (!contig && (0 != (options & kIOMemoryPhysicallyContiguous)))
429 	    contig |= (0 != (kIOMemoryMapperNone & options));
469     if( (options & (kIOMemoryPageable | kIOMapCacheMask))) {
487 	if( options & kIOMemoryPageable) {
495 	else if (options & kIOMapCacheMask)
529 			    kIOMapAnywhere | (options & kIOMapCacheMask), 0, 0);
551                                             IOOptionBits options,
557     if (me && !me->initWithPhysicalMask(inTask, options, capacity, alignment, 0)) {
566                                             IOOptionBits      options,
572     if (me && !me->initWithPhysicalMask(inTask, options, capacity, 1, physicalMask))
582                                IOOptionBits options,
586     return (initWithPhysicalMask(kernel_task, options, capacity, alignment, (mach_vm_address_t)0));
591                                             IOOptionBits options,
597     if (me && !me->initWithPhysicalMask(kernel_task, options, capacity, alignment, 0)) {
697     IOOptionBits     options   = _options;
718     if (options & kIOMemoryPageable)