1032   int dataExchange(int SrcDevId, const void *SrcPtr, int DstDevId, void *DstPtr,  in dataExchange()  argument
1040     if (SrcDevId != DstDevId) {  in dataExchange()
1043       switch (PeerAccessMatrix[SrcDevId][DstDevId]) {  in dataExchange()
1047                SrcDevId, DstDevId);  in dataExchange()
1052         Err = cuDeviceCanAccessPeer(&CanAccessPeer, SrcDevId, DstDevId);  in dataExchange()
1056                  SrcDevId, DstDevId);  in dataExchange()
1058           PeerAccessMatrix[SrcDevId][DstDevId] = PeerAccessState::No;  in dataExchange()
1065                  SrcDevId, DstDevId);  in dataExchange()
1066           PeerAccessMatrix[SrcDevId][DstDevId] = PeerAccessState::No;  in dataExchange()
1070         Err = cuCtxEnablePeerAccess(DeviceData[DstDevId].Context, 0);  in dataExchange()
1074                  SrcDevId, DstDevId);  in dataExchange()
1076           PeerAccessMatrix[SrcDevId][DstDevId] = PeerAccessState::No;  in dataExchange()
1080         PeerAccessMatrix[SrcDevId][DstDevId] = PeerAccessState::Yes;  in dataExchange()
1086             (CUdeviceptr)DstPtr, DeviceData[DstDevId].Context,  in dataExchange()
1094            DPxPTR(SrcPtr), SrcDevId, DPxPTR(DstPtr), DstDevId);  in dataExchange()
1579 int32_t __tgt_rtl_is_data_exchangable(int32_t SrcDevId, int DstDevId) {  in __tgt_rtl_is_data_exchangable()  argument
1581       DeviceRTL.isValidDeviceId(DstDevId))  in __tgt_rtl_is_data_exchangable()
1674                                       int DstDevId, void *DstPtr, int64_t Size,  in __tgt_rtl_data_exchange_async()  argument
1677   assert(DeviceRTL.isValidDeviceId(DstDevId) && "dst_dev_id is invalid");  in __tgt_rtl_data_exchange_async()
1683   return DeviceRTL.dataExchange(SrcDevId, SrcPtr, DstDevId, DstPtr, Size,  in __tgt_rtl_data_exchange_async()
1688                                 int32_t DstDevId, void *DstPtr, int64_t Size) {  in __tgt_rtl_data_exchange()  argument
1690   assert(DeviceRTL.isValidDeviceId(DstDevId) && "dst_dev_id is invalid");  in __tgt_rtl_data_exchange()
1694   const int32_t Rc = __tgt_rtl_data_exchange_async(SrcDevId, SrcPtr, DstDevId,  in __tgt_rtl_data_exchange()