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drm: Add checks for atomic_[duplicate/destroy]_state with atomic drivers

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This patch add checks for atomic_[duplicate/destroy]_state of
drm_[connector/crtc/plane]_funcs for atomic drivers in the relevant
drm_*_init functions since these callback are mandatory for atomic drivers.

Update the kerneldoc comments for those callbacks.

Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180525012555.GA8448@haneen-vb
This commit is contained in:
Haneen Mohammed 2018-05-25 04:25:55 +03:00 committed by Daniel Vetter
parent 0baf5cc971
commit ba1f665f16
6 changed files with 24 additions and 0 deletions
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4
drivers/gpu/drm/drm_connector.c
View File

@ -195,6 +195,10 @@ int drm_connector_init(struct drm_device *dev,
struct ida *connector_ida =
&drm_connector_enum_list[connector_type].ida;
WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
(!funcs->atomic_destroy_state ||
!funcs->atomic_duplicate_state));
ret = __drm_mode_object_add(dev, &connector->base,
DRM_MODE_OBJECT_CONNECTOR,
false, drm_connector_free);

4
drivers/gpu/drm/drm_crtc.c
View File

@ -286,6 +286,10 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
if (WARN_ON(config->num_crtc >= 32))
return -EINVAL;
WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
(!funcs->atomic_destroy_state ||
!funcs->atomic_duplicate_state));
crtc->dev = dev;
crtc->funcs = funcs;

4
drivers/gpu/drm/drm_plane.c
View File

@ -177,6 +177,10 @@ int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane,
if (WARN_ON(config->num_total_plane >= 32))
return -EINVAL;
WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
(!funcs->atomic_destroy_state ||
!funcs->atomic_duplicate_state));
ret = drm_mode_object_add(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
if (ret)
return ret;

4
include/drm/drm_connector.h
View File

@ -616,6 +616,8 @@ struct drm_connector_funcs {
* cleaned up by calling the @atomic_destroy_state hook in this
* structure.
*
* This callback is mandatory for atomic drivers.
*
* Atomic drivers which don't subclass &struct drm_connector_state should use
* drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
* state structure to extend it with driver-private state should use
@ -642,6 +644,8 @@ struct drm_connector_funcs {
*
* Destroy a state duplicated with @atomic_duplicate_state and release
* or unreference all resources it references
*
* This callback is mandatory for atomic drivers.
*/
void (*atomic_destroy_state)(struct drm_connector *connector,
struct drm_connector_state *state);

4
include/drm/drm_crtc.h
View File

@ -506,6 +506,8 @@ struct drm_crtc_funcs {
* cleaned up by calling the @atomic_destroy_state hook in this
* structure.
*
* This callback is mandatory for atomic drivers.
*
* Atomic drivers which don't subclass &struct drm_crtc_state should use
* drm_atomic_helper_crtc_duplicate_state(). Drivers that subclass the
* state structure to extend it with driver-private state should use
@ -532,6 +534,8 @@ struct drm_crtc_funcs {
*
* Destroy a state duplicated with @atomic_duplicate_state and release
* or unreference all resources it references
*
* This callback is mandatory for atomic drivers.
*/
void (*atomic_destroy_state)(struct drm_crtc *crtc,
struct drm_crtc_state *state);

4
include/drm/drm_plane.h
View File

@ -288,6 +288,8 @@ struct drm_plane_funcs {
* cleaned up by calling the @atomic_destroy_state hook in this
* structure.
*
* This callback is mandatory for atomic drivers.
*
* Atomic drivers which don't subclass &struct drm_plane_state should use
* drm_atomic_helper_plane_duplicate_state(). Drivers that subclass the
* state structure to extend it with driver-private state should use
@ -314,6 +316,8 @@ struct drm_plane_funcs {
*
* Destroy a state duplicated with @atomic_duplicate_state and release
* or unreference all resources it references
*
* This callback is mandatory for atomic drivers.
*/
void (*atomic_destroy_state)(struct drm_plane *plane,
struct drm_plane_state *state);