iokit/Kernel/IOMemoryDescriptor.cpp

537 	// virtual ranges
1079 IOMemoryDescriptor::withRanges(	IOVirtualRange * ranges,
1088 	if (that->initWithRanges(ranges, withCount, direction, task, asReference))
1108 IOMemoryDescriptor::withAddressRanges(IOAddressRange *   ranges,
1121 	if (that->initWithOptions(ranges, rangeCount, 0, task, options, /* mapper */ 0))
1135  * virtual address ranges, from a given task.
1137  * Passing the ranges as a reference will avoid an extra allocation.
1171 IOMemoryDescriptor::withPhysicalRanges(	IOPhysicalRange * ranges,
1179 	if (that->initWithPhysicalRanges(ranges, withCount, direction, asReference))
1273                                 IOPhysicalRange * ranges,
1283     return initWithOptions(ranges, count, 0, 0, mdOpts, /* mapper */ 0);
1288                                    IOVirtualRange * ranges,
1311     return initWithOptions(ranges, count, 0, task, mdOpts, /* mapper */ 0);
1318  *  IOMemoryDescriptor. The buffer is made up of several virtual address ranges,
1319  * from a given task, several physical ranges, an UPL from the ubc
1322  * Passing the ranges as a reference will avoid an extra allocation.
1537 	    // This also initialises the uio & physical ranges.
1591 	// Find starting address within the vector of ranges
1738  * Get the length of the transfer (over all ranges).
2126 	    // see how far we can coalesce ranges
2163 	    // see how far we can coalesce ranges
2298 	// Find starting address within the vector of ranges
2821     // Iterate over the vector of virtual ranges
4331                                    	IOVirtualRange * ranges,
4341 IOMemoryDescriptor::initWithPhysicalRanges(	IOPhysicalRange * ranges,
4485 	    IOAddressRange ranges[3];
4488 	    bzero(&ranges[0], sizeof(ranges));
4489 	    ranges[0].address = data[0] + srcoffset;
4490 	    ranges[0].length  = srcsize;
4494 		ranges[0].length  = 7634;
4495 		ranges[1].length  = 9870;
4496 		ranges[2].length  = srcsize - ranges[0].length - ranges[1].length;
4497 		ranges[1].address = ranges[0].address + ranges[0].length;
4498 		ranges[2].address = ranges[1].address + ranges[1].length;
4503 		ranges[0].length  = 4096;
4504 		ranges[1].length  = 4096;
4505 		ranges[2].length  = srcsize - ranges[0].length - ranges[1].length;
4506 		ranges[0].address = data[0] + srcoffset + 4096;
4507 		ranges[1].address = data[0] + srcoffset;
4508 		ranges[2].address = ranges[0].address + ranges[0].length;
4513 	    	IOMemoryDescriptor::withAddressRanges(&ranges[0], rangeCount, kIODirectionInOut, kernel_task));
4518 		    (long long) ranges[0].address - data[0], (long long) ranges[0].length,
4519 		    (long long) ranges[1].address - data[0], (long long) ranges[1].length,
4520 		    (long long) ranges[2].address - data[0], (long long) ranges[2].length);