diff options
| author | Kristian H. Kristensen <hoegsberg@gmail.com> | 2019-03-20 20:09:08 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2019-04-19 21:50:06 +0300 |
| commit | 48e7f18392c66f9b69ebac11c54f1a2e033ced54 (patch) | |
| tree | cf683d683a70b760650865d44656a699cccf9def /drivers/gpu/drm/msm/msm_gem.h | |
| parent | fb076b15d50dee36c75eb6c447c1b1026ad12e2e (diff) | |
| download | linux-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.h | 3 |
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 |