iokit/Kernel/IOMemoryDescriptor.cpp

613 	ioGMDData *dataP = getDataP(orig->_memoryEntries);
615 	// Only accept persistent memory descriptors with valid dataP data.
617 	if ( !(orig->_flags & kIOMemoryPersistent) || !dataP)
628 	mapper = dataP->fMapper;
742         ioGMDData *dataP;
746         dataP = getDataP(_memoryEntries);
747         dataP->fPageCnt = 0;
875             ioGMDData *dataP;
879             dataP = getDataP(_memoryEntries);
880             dataP->fPageCnt = _pages;
1124     ioGMDData *dataP;
1136     if (!_memoryEntries || !(dataP = getDataP(_memoryEntries)))
1139     if (kIOPreparationIDUnprepared == dataP->fPreparationID)
1141 	dataP->fPreparationID = OSIncrementAtomic64(&gIOMDPreparationID);
1143     return (dataP->fPreparationID);
1182     ioGMDData *dataP;
1201 	    dataP = getDataP(_memoryEntries);
1202 	    if (data->fMapSpec.numAddressBits < dataP->fDMAMapNumAddressBits)
1204 	     	dataP->fDMAMapNumAddressBits = data->fMapSpec.numAddressBits;
1205 		remap = ((dataP->fMappedBase + _length) > (1ULL << dataP->fDMAMapNumAddressBits));
1207 	    if (data->fMapSpec.alignment > dataP->fDMAMapAlignment)
1209 	     	dataP->fDMAMapAlignment = data->fMapSpec.alignment;
1210 		remap |= (dataP->fDMAMapAlignment > page_size);
1213 	    if (remap || !dataP->fMappedBase)
1215 //		if (dataP->fMappedBase) OSReportWithBacktrace("kIOMDDMAMap whole %d remap %d params %d\n", whole, remap, params);
1217 		if ((kIOReturnSuccess == err) && whole && !dataP->fMappedBase)
1219 		    dataP->fMappedBase = data->fAlloc;
1225 	    	data->fAlloc = dataP->fMappedBase;
1245 	    dataP = getDataP(_memoryEntries);
1246 	    if (data->numAddressBits < dataP->fDMAMapNumAddressBits)
1247 	     	dataP->fDMAMapNumAddressBits = data->numAddressBits;
1248 	    if (data->alignment > dataP->fDMAMapAlignment)
1249 	     	dataP->fDMAMapAlignment = data->alignment;
1271 		dataP = getDataP(_memoryEntries);
1272 		ioPLBlock *ioplList = getIOPLList(dataP);
1273 		UInt count = getNumIOPL(_memoryEntries, dataP);
1319 	dataP = getDataP(_memoryEntries);
1320 	if (dataP->fMapper)
1324 	    mapSpec.numAddressBits = dataP->fDMAMapNumAddressBits;
1325 	    mapSpec.alignment = dataP->fDMAMapAlignment;
1326 	    err = md->dmaMap(dataP->fMapper, &mapSpec, 0, _length, &dataP->fMappedBase, NULL);
1364 		&& (dataP = getDataP(_memoryEntries)) && dataP->fMappedBase)
1366 	    address = dataP->fMappedBase + offset;
1401 		&& (dataP = getDataP(_memoryEntries)) && dataP->fMappedBase)
1403 	    address = dataP->fMappedBase + offset;
1426 	dataP = getDataP(_memoryEntries);
1427 	const ioPLBlock *ioplList = getIOPLList(dataP);
1428 	UInt numIOPLs = getNumIOPL(_memoryEntries, dataP);
1429 	upl_page_info_t *pageList = getPageList(dataP);
1452 	if (mapped && dataP->fMappedBase) {
1454 	    address = trunc_page_64(dataP->fMappedBase) + ptoa_64(ioplInfo.fMappedPage) + offset;
2062     ioGMDData *dataP;
2073     dataP = getDataP(_memoryEntries);
2075     mapper = dataP->fMapper;
2076     dataP->fMappedBase = 0;
2101 	if (dataP->fDMAMapNumAddressBits > 32) dataP->fDMAMapNumAddressBits = 32;
2106     _memoryEntries->appendBytes(0, dataP->fPageCnt * sizeof(upl_page_info_t));
2107     dataP = 0;
2153 	    dataP = getDataP(_memoryEntries);
2154 	    pageInfo = getPageList(dataP);
2230 	    dataP = 0;
2255         dataP = getDataP(_memoryEntries);
2256         UInt done = getNumIOPL(_memoryEntries, dataP);
2257         ioPLBlock *ioplList = getIOPLList(dataP);
2266 	(void) _memoryEntries->initWithBytes(dataP, computeDataSize(0, 0)); // == setLength()
2277     ioGMDData * dataP;
2289     dataP = getDataP(_memoryEntries);
2295     dataP->fMapper               = mapper;
2296     dataP->fPageCnt              = 0;
2297     dataP->fMappedBase           = 0;
2298     dataP->fDMAMapNumAddressBits = 64;
2299     dataP->fDMAMapAlignment      = 0;
2300     dataP->fPreparationID        = kIOPreparationIDUnprepared;
2390     ioGMDData *       dataP;
2401     else if (_memoryEntries && _pages && (dataP = getDataP(_memoryEntries)))
2403 	const ioPLBlock * ioplList = getIOPLList(dataP);
2410 	mapSpec.numAddressBits = dataP->fDMAMapNumAddressBits;
2411 	mapSpec.alignment = dataP->fDMAMapAlignment;
2421 	    pageList = getPageList(dataP);
2512 	    ioGMDData * dataP = getDataP(_memoryEntries);
2513 	    ioPLBlock *ioplList = getIOPLList(dataP);
2514 	    UInt count = getNumIOPL(_memoryEntries, dataP);
2520 	    if (dataP->fMappedBase) {
2521 		dataP->fMapper->iovmFree(atop_64(dataP->fMappedBase), _pages);
2522 	        dataP->fMappedBase = 0;
2535 	    (void) _memoryEntries->initWithBytes(dataP, computeDataSize(0, 0)); // == setLength()
2537 	    dataP->fPreparationID = kIOPreparationIDUnprepared;