On Tue, Jan 26, 2016 at 05:13:15PM +0000, Robin Murphy wrote: > In certain unmapping situations it is quite possible to end up issuing > back-to-back TLB synchronisations, which at best is a waste of time and > effort, and at worst causes some hardware to get rather confused. Whilst > the pagetable implementations, or the IOMMU drivers, or both, could keep > track of things to avoid this happening, it seems to make the most sense > to prevent code duplication and add some simple state tracking in the > common interface between the two. > > Reviewed-by: Laurent Pinchart <[email protected]> > Signed-off-by: Robin Murphy <[email protected]> > --- > drivers/iommu/io-pgtable.h | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-)
Acked-by: Will Deacon <[email protected]> Will _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
