summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/ttm/ttm_bo.c
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2021-06-11 10:59:49 +1000
committerDave Airlie <airlied@redhat.com>2021-06-11 10:59:55 +1000
commit750643a99e6774e65028201a54cf621d5e43dc9c (patch)
tree4a63d8fe05168f819346ed76a02836a2b3a8cfa3 /drivers/gpu/drm/ttm/ttm_bo.c
parent43f44f5bd1970fafb259152e1c9d8e6daf0f362d (diff)
parentc336a5ee984708db4826ef9e47d184e638e29717 (diff)
downloadlinux-750643a99e6774e65028201a54cf621d5e43dc9c.tar.bz2
Merge tag 'drm-misc-fixes-2021-06-10' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
One fix for snu4i that prevents it from probing, two locking fixes for ttm and drm_auth, one off-by-x1000 fix for mcde and a fix for vc4 to prevent an out-of-bounds access. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210610171653.lqsoadxrhdk73cdy@gilmour
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo.c')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index cfd0b9292397..ebcffe794adb 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1172,7 +1172,10 @@ int ttm_bo_swapout(struct ttm_buffer_object *bo, struct ttm_operation_ctx *ctx,
if (!ttm_bo_evict_swapout_allowable(bo, ctx, &locked, NULL))
return -EBUSY;
- if (!ttm_bo_get_unless_zero(bo)) {
+ if (!bo->ttm || !ttm_tt_is_populated(bo->ttm) ||
+ bo->ttm->page_flags & TTM_PAGE_FLAG_SG ||
+ bo->ttm->page_flags & TTM_PAGE_FLAG_SWAPPED ||
+ !ttm_bo_get_unless_zero(bo)) {
if (locked)
dma_resv_unlock(bo->base.resv);
return -EBUSY;