get_user_pages() to TTM pages is uwanted since TTM assumes it owns the pages exclusively and / or sets up page-table mappings to io memory.
The first patch make sures we stop fast gup to huge TTM pages using a trick with pmd_devmap() and pud_devmap() without a backing dev_pagemap. The second patch makes sure we block normal gup by setting VM_PFNMAP Cc: Christian Koenig <christian.koe...@amd.com> Cc: David Airlie <airl...@linux.ie> Cc: Daniel Vetter <dan...@ffwll.ch> Cc: Andrew Morton <a...@linux-foundation.org> Cc: Jason Gunthorpe <j...@nvidia.com> Cc: linux...@kvack.org Cc: dri-devel@lists.freedesktop.org Cc: linux-ker...@vger.kernel.org Signed-off-by: Thomas Hellström (Intel) <thomas...@shipmail.org> _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
