Hello Shuah,
We agree that the streaming API was originally *intended* for short
map-unmap DMA sessions, and that dma_alloc_noncoherent() was the
*intended* API for those who want to hold the DMA during a device's
lifetime.
We also agree that on some platforms, DMA mappings are precious,
On Saturday 07 June 2014 00:45:45 Thierry Reding wrote:
This is somewhat off-topic, but given the various concepts discussed in
this thread I'm beginning to wonder how they will be implemented.
I think it's good you raised the question.
The
current implementation hooks the IOMMU API into the
