1315 	Segment64 curSeg = { 0, 0 };  in genIOVMSegments()  local
1438 				if (curSegValid && ((curSeg.fIOVMAddr + curSeg.fLength) == state->fIOVMAddr)) {  in genIOVMSegments()
1441 					curSeg.fLength  += length;  in genIOVMSegments()
1455 			curSeg.fIOVMAddr              = state->fIOVMAddr;  in genIOVMSegments()
1456 			curSeg.fLength                = length;  in genIOVMSegments()
1463 			if ((kWalkClient & op) && (curSeg.fIOVMAddr + curSeg.fLength - 1) > maxPhys) {  in genIOVMSegments()
1465 					curSegValid = curSeg.fIOVMAddr = 0;  in genIOVMSegments()
1468 				} else if (curSeg.fIOVMAddr <= maxPhys) {  in genIOVMSegments()
1471 					newLength        = (maxPhys + 1 - curSeg.fIOVMAddr);  in genIOVMSegments()
1472 					DEBG("trunc %qx, %qx-> %qx\n", curSeg.fIOVMAddr, curSeg.fLength, newLength);  in genIOVMSegments()
1473 					remain           = curSeg.fLength - newLength;  in genIOVMSegments()
1474 					state->fIOVMAddr = newLength + curSeg.fIOVMAddr;  in genIOVMSegments()
1476 					curSeg.fLength   = newLength;  in genIOVMSegments()
1480 					UInt64    addr = curSeg.fIOVMAddr;  in genIOVMSegments()
1485 					DEBG("sparse switch %qx, %qx ", addr, curSeg.fLength);  in genIOVMSegments()
1500 					curSeg.fIOVMAddr = ptoa_64(vm_page_get_phys_page(remap))  in genIOVMSegments()
1506 					if (newLength < curSeg.fLength) {  in genIOVMSegments()
1507 						remain           = curSeg.fLength - newLength;  in genIOVMSegments()
1510 						curSeg.fLength   = newLength;  in genIOVMSegments()
1514 					DEBG("-> %qx, %qx offset %qx\n", curSeg.fIOVMAddr, curSeg.fLength, offset);  in genIOVMSegments()
1522 			if (curSeg.fLength > fMaxSegmentSize) {  in genIOVMSegments()
1523 				leftover      += curSeg.fLength - fMaxSegmentSize;  in genIOVMSegments()
1524 				curSeg.fLength = fMaxSegmentSize;  in genIOVMSegments()
1525 				state->fIOVMAddr = curSeg.fLength + curSeg.fIOVMAddr;  in genIOVMSegments()
1531 			reduce = (curSeg.fLength & fAlignMaskLength);  in genIOVMSegments()
1532 			if (reduce && (curSeg.fLength > reduce)) {  in genIOVMSegments()
1534 				curSeg.fLength -= reduce;  in genIOVMSegments()
1535 				state->fIOVMAddr = curSeg.fLength + curSeg.fIOVMAddr;  in genIOVMSegments()
1542 			if (reduce && (curSeg.fLength > reduce)) {  in genIOVMSegments()
1544 				curSeg.fLength -= reduce;  in genIOVMSegments()
1545 				state->fIOVMAddr = curSeg.fLength + curSeg.fIOVMAddr;  in genIOVMSegments()
1552 				    curSeg.fIOVMAddr, curSeg.fLength);  in genIOVMSegments()
1564 				misaligned = (0 != (mask & curSeg.fIOVMAddr));  in genIOVMSegments()
1567 					misaligned |= (0 != (mask &  curSeg.fLength));  in genIOVMSegments()
1571 						DEBG("cursor misaligned %qx:%qx\n", curSeg.fIOVMAddr, curSeg.fLength);  in genIOVMSegments()
1573 					curSegValid = curSeg.fIOVMAddr = 0;  in genIOVMSegments()
1580 				curSeg.fLength   -= (offset - memLength);  in genIOVMSegments()
1593 				IOLog("DMA[%p] outseg 0x%qx, 0x%qx\n", this, curSeg.fIOVMAddr, curSeg.fLength);  in genIOVMSegments()
1596 			ret = (*outSegFunc)(reference, this, curSeg, segmentsP, segIndex++);  in genIOVMSegments()
1597 			curSegValid = curSeg.fIOVMAddr = 0;  in genIOVMSegments()
1607 			IOLog("DMA[%p] outseg 0x%qx, 0x%qx\n", this, curSeg.fIOVMAddr, curSeg.fLength);  in genIOVMSegments()
1610 		ret = (*outSegFunc)(reference, this, curSeg, segmentsP, segIndex++);  in genIOVMSegments()