Jungo WinDriver  
Official Documentation

◆ WDC_DMASyncCpu()

DWORD DLLCALLCONV WDC_DMASyncCpu ( _In_ WD_DMA pDma)

Synchronizes the cache of all CPUs with the DMA buffer, by flushing the data from the CPU caches.

Parameters
[in]pDmaPointer to a DMA information structure, received from a previous call to WDC_DMATransactionContigInit() (for a Contiguous DMA Buffer Transaction) or WDC_DMATransactionSGInit() (for a Scatter/Gather DMA buffer Transaction) *ppDma returned by these functions
Returns
Returns WD_STATUS_SUCCESS (0) on success, or an appropriate error code otherwise

For more detailed usage of the WDC_DMA functions, please refer to 11.2. Performing Direct Memory Access (DMA)