On Tue, Nov 29, 2016 at 10:39:03AM +0000, Frank Binns wrote:
> On 29/11/16 09:45, Daniel Vetter wrote:
> > Encoders&planes can't be hotplugged, we dont need looking for this
>
> s/looking/locking/
>
> With that changed:
> Reviewed-by: Frank Binns <frank.binns@xxxxxxxxxx>
Fixed&applied, thanks for your review.
-Daniel
>
> > since it's all single-threaded driver setup/teardown code. CRTCs
> > already don't grab locks.
> >
> > While at it I noticed that plane's are missing the
> > drm_modeset_lock_fini() call, so add it.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> > ---
> > drivers/gpu/drm/drm_encoder.c | 9 +--------
> > drivers/gpu/drm/drm_plane.c | 4 ++--
> > 2 files changed, 3 insertions(+), 10 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c
> > index 5c067719164d..992879f15f23 100644
> > --- a/drivers/gpu/drm/drm_encoder.c
> > +++ b/drivers/gpu/drm/drm_encoder.c
> > @@ -110,11 +110,9 @@ int drm_encoder_init(struct drm_device *dev,
> > {
> > int ret;
> > - drm_modeset_lock_all(dev);
> > -
> > ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
> > if (ret)
> > - goto out_unlock;
> > + return ret;
> > encoder->dev = dev;
> > encoder->encoder_type = encoder_type;
> > @@ -142,9 +140,6 @@ int drm_encoder_init(struct drm_device *dev,
> > if (ret)
> > drm_mode_object_unregister(dev, &encoder->base);
> > -out_unlock:
> > - drm_modeset_unlock_all(dev);
> > -
> > return ret;
> > }
> > EXPORT_SYMBOL(drm_encoder_init);
> > @@ -164,12 +159,10 @@ void drm_encoder_cleanup(struct drm_encoder *encoder)
> > * the indices on the drm_encoder after us in the encoder_list.
> > */
> > - drm_modeset_lock_all(dev);
> > drm_mode_object_unregister(dev, &encoder->base);
> > kfree(encoder->name);
> > list_del(&encoder->head);
> > dev->mode_config.num_encoder--;
> > - drm_modeset_unlock_all(dev);
> > memset(encoder, 0, sizeof(*encoder));
> > }
> > diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
> > index 419ac313c36f..9147aab182c4 100644
> > --- a/drivers/gpu/drm/drm_plane.c
> > +++ b/drivers/gpu/drm/drm_plane.c
> > @@ -221,7 +221,8 @@ void drm_plane_cleanup(struct drm_plane *plane)
> > {
> > struct drm_device *dev = plane->dev;
> > - drm_modeset_lock_all(dev);
> > + drm_modeset_lock_fini(&plane->mutex);
> > +
> > kfree(plane->format_types);
> > drm_mode_object_unregister(dev, &plane->base);
> > @@ -236,7 +237,6 @@ void drm_plane_cleanup(struct drm_plane *plane)
> > dev->mode_config.num_total_plane--;
> > if (plane->type == DRM_PLANE_TYPE_OVERLAY)
> > dev->mode_config.num_overlay_plane--;
> > - drm_modeset_unlock_all(dev);
> > WARN_ON(plane->state && !plane->funcs->atomic_destroy_state);
> > if (plane->state && plane->funcs->atomic_destroy_state)
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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