910 			IOMDDMAMapArgs mapArgs;  in prepare()  local
911 			bzero(&mapArgs, sizeof(mapArgs));  in prepare()
912 			mapArgs.fMapper = fMapper.get();  in prepare()
913 			mapArgs.fCommand = this;  in prepare()
914 			mapArgs.fMapSpec.device         = state->fDevice;  in prepare()
915 			mapArgs.fMapSpec.alignment      = fAlignMask + 1;  in prepare()
916 			mapArgs.fMapSpec.numAddressBits = fNumAddressBits ? ((UInt8) fNumAddressBits) : 64;  in prepare()
917 			mapArgs.fLength = state->fPreparedLength;  in prepare()
920 				mapArgs.fOffset = 0;  in prepare()
923 				mapArgs.fOffset = state->fPreparedOffset;  in prepare()
926 			ret = md->dmaCommandOperation(kIOMDDMAMap, &mapArgs, sizeof(mapArgs));  in prepare()
929 			    && mapArgs.fAllocLength  in prepare()
930 			    && (mapArgs.fAllocLength != mapArgs.fLength)) {  in prepare()
946 					assert(mapArgs.fAllocLength > mapArgs.fLength);  in prepare()
974 						IOLog("DMA[%p] alloc 0x%qx, 0x%qx\n", this, mapArgs.fAlloc, mapArgs.fAllocLength);  in prepare()
1035 					state->fLocalMapperAllocBase = (mapArgs.fAlloc & ~mapperPageMask);  in prepare()
1044 				state->fLocalMapperAlloc       = mapArgs.fAlloc;  in prepare()
1046 				state->fLocalMapperAllocLength = mapArgs.fAllocLength;  in prepare()
1088 			IOMDDMAMapArgs mapArgs;  in complete()  local
1089 			bzero(&mapArgs, sizeof(mapArgs));  in complete()
1090 			mapArgs.fMapper = fMapper.get();  in complete()
1091 			mapArgs.fCommand = this;  in complete()
1092 			mapArgs.fAlloc = state->fLocalMapperAlloc;  in complete()
1093 			mapArgs.fAllocLength = state->fLocalMapperAllocLength;  in complete()
1096 				mapArgs.fOffset = 0;  in complete()
1099 				mapArgs.fOffset = state->fPreparedOffset;  in complete()
1102 			ret = md->dmaCommandOperation(kIOMDDMAUnmap, &mapArgs, sizeof(mapArgs));  in complete()