On Mon, Apr 09, 2018 at 11:07:21PM +0300, Dmitry Osipenko wrote: > GART has a fixed aperture size, hence the number of pages is constant. > > Signed-off-by: Dmitry Osipenko <dig...@gmail.com> > --- > drivers/iommu/tegra-gart.c | 14 ++++++++------ > 1 file changed, 8 insertions(+), 6 deletions(-)
This doesn't really give a good explanation of why you want to do this. While it is certainly true that the aperture is fixed in size, I can imagine cases where somebody would want to restrict the aperture size (perhaps there's a fixed mapping somewhere near the end of the mapping that Linux shouldn't touch, or the GART aperture could be reduced to simulate out of IOVA memory situations). Without a good explanation why this is necessary I don't see why the current code should be changed. Thierry
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