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authorDaniel Vetter <daniel.vetter@ffwll.ch>2021-03-01 10:52:54 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2021-03-19 20:15:48 +0100
commit50891bead80bc79871528c2962d65c781c02330b (patch)
tree618f7a68afc5097feea124315b8493299b60b626
parentcd5297b0855f17c8b4e3ef1d20c6a3656209c7b3 (diff)
drm/etnaviv: User FOLL_LONGTERM in userptrdrm-misc-fixes-2021-03-25
There's no mmu notifier or anything like that, releasing this pin is entirely up to userspace. Hence FOLL_LONGTERM. No cc: stable for this patch since a lot of the infrastructure around FOLL_LONGETRM (like not allowing it for pages currently sitting in ZONE_MOVEABLE before they're migrated) is still being worked on. So not big benefits yet. Reviewed-by: John Hubbard <jhubbard@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Russell King <linux+etnaviv@armlinux.org.uk> Cc: Christian Gmeiner <christian.gmeiner@gmail.com> Cc: etnaviv@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20210301095254.1946084-2-daniel.vetter@ffwll.ch
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_gem.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index a9e696d05b33..db69f19ab5bc 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -689,7 +689,8 @@ static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj)
struct page **pages = pvec + pinned;
ret = pin_user_pages_fast(ptr, num_pages,
- FOLL_WRITE | FOLL_FORCE, pages);
+ FOLL_WRITE | FOLL_FORCE | FOLL_LONGTERM,
+ pages);
if (ret < 0) {
unpin_user_pages(pvec, pinned);
kvfree(pvec);