On 11/04/2019 22:53, Rob Herring wrote: > Add support for 2MB sized pages. This will improve our map and unmap > times and save a bit of memory by avoiding 3rd level page tables for > contiguous allocations. > > As we use shmem for buffers and huge page allocations for shmem are off > by default, there isn't an improvement out of the box and userspace must > enable THP for shmem. > > It's not clear if the h/w can support 1GB page sizes which standard > ARM long format descriptors support. In any case, it is unlikely we'll > see any contiguous 1GB allocations on current h/w. > > Cc: Tomeu Vizoso <tomeu.viz...@collabora.com> > Cc: David Airlie <airl...@linux.ie> > Cc: Daniel Vetter <dan...@ffwll.ch> > Signed-off-by: Rob Herring <r...@kernel.org>
LGTM, and I see a nice speed up too! Reviewed-by: Steven Price <steven.pr...@arm.com> _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
