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| author | Rob Clark <robdclark@gmail.com> | 2014-11-25 20:29:46 -0500 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-11-27 15:39:09 +0100 |
| commit | dd275956aa176cf2ff00d5437c45f1552f1f3a11 (patch) | |
| tree | 254ccf20f46968b64784cd31ea7fb4cf38f28248 /include/drm/drm_atomic_helper.h | |
| parent | 6ddd388ab222b66b596342becc76d5031c0e2fc8 (diff) | |
| download | linux-dd275956aa176cf2ff00d5437c45f1552f1f3a11.tar.gz linux-dd275956aa176cf2ff00d5437c45f1552f1f3a11.tar.bz2 linux-dd275956aa176cf2ff00d5437c45f1552f1f3a11.zip | |
drm/atomic: add plane iterator macros
Add helper macros to iterate the current, or incoming set of planes
attached to a crtc. These helpers are only available for drivers
converted to use atomic-helpers.
Signed-off-by: Rob Clark <robdclark@gmail.com>
[danvet: Squash in fixup from Rob to move the planemask iterator to
drm_crtc.h and document it. That one is needed by the atomic ioctl so
can't be in a helper library.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm/drm_atomic_helper.h')
| -rw-r--r-- | include/drm/drm_atomic_helper.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 70a83197ef66..f956b413311e 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -98,5 +98,29 @@ drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector); void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, struct drm_connector_state *state); +/** + * drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC + * @plane: the loop cursor + * @crtc: the crtc whose planes are iterated + * + * This iterates over the current state, useful (for example) when applying + * atomic state after it has been checked and swapped. To iterate over the + * planes which *will* be attached (for ->atomic_check()) see + * drm_crtc_for_each_pending_plane() + */ +#define drm_atomic_crtc_for_each_plane(plane, crtc) \ + drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask) + +/** + * drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state + * @plane: the loop cursor + * @crtc_state: the incoming crtc-state + * + * Similar to drm_crtc_for_each_plane(), but iterates the planes that will be + * attached if the specified state is applied. Useful during (for example) + * ->atomic_check() operations, to validate the incoming state + */ +#define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \ + drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask) #endif /* DRM_ATOMIC_HELPER_H_ */ |