summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/msm/msm_gem.h
diff options
context:
space:
mode:
authorKristian H. Kristensen <hoegsberg@gmail.com>2019-03-20 20:09:08 +0300
committerRob Clark <robdclark@chromium.org>2019-04-19 21:50:06 +0300
commit48e7f18392c66f9b69ebac11c54f1a2e033ced54 (patch)
treecf683d683a70b760650865d44656a699cccf9def /drivers/gpu/drm/msm/msm_gem.h
parentfb076b15d50dee36c75eb6c447c1b1026ad12e2e (diff)
downloadlinux-48e7f18392c66f9b69ebac11c54f1a2e033ced54.tar.xz
drm/msm: Implement .gem_free_object_unlocked
We use a llist and a worker to delay the object cleanup. This avoids taking mmap_sem and struct_mutex in the wrong order when calling drm_gem_object_put_unlocked() from drm_gem_mmap(). Fixes lockdep problem with copy_from_user() in msm_ioctl_gem_submit(). Signed-off-by: Kristian H. Kristensen <hoegsberg@chromium.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.h')
-rw-r--r--drivers/gpu/drm/msm/msm_gem.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index 2064fac871b8..0617c44d99b0 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -84,6 +84,8 @@ struct msm_gem_object {
struct list_head vmas; /* list of msm_gem_vma */
+ struct llist_node freed;
+
/* normally (resv == &_resv) except for imported bo's */
struct reservation_object *resv;
struct reservation_object _resv;
@@ -133,6 +135,7 @@ enum msm_gem_lock {
void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass);
void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass);
+void msm_gem_free_work(struct work_struct *work);
/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
* associated with the cmdstream submission for synchronization (and