[PATCH v5 1/1] iommu-api: Add map_sg/unmap_sg functions

On Tue, Aug 12, 2014 at 09:56:11AM -0700, Olav Haugan wrote:

On 8/12/2014 3:48 AM, Rob Clark wrote:

quoted

iirc, one plan for 'flags' was some sort of DONT_FLUSH_TLB flag for
drivers which wanted to map/unmap N buffers with a single flush at the
end.  There might have been some other usages envisioned.

Yes, that was the original intent of the flags for now. I am sure we can
find other uses for this in the future.

Do you have anything else in mind already besides the DONT_FLUSH_TLB
flag?

How is the IOTLB supposed to be flushed when this flag is used?


	Joerg