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authorRob Clark <robdclark@gmail.com>2014-11-25 20:29:46 -0500
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-11-27 15:39:09 +0100
commitdd275956aa176cf2ff00d5437c45f1552f1f3a11 (patch)
tree254ccf20f46968b64784cd31ea7fb4cf38f28248 /include/drm/drm_crtc.h
parent6ddd388ab222b66b596342becc76d5031c0e2fc8 (diff)
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_crtc.h')
-rw-r--r--include/drm/drm_crtc.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 4cf6905b57f5..dd2c16e43333 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1062,6 +1062,19 @@ struct drm_mode_config {
uint32_t cursor_width, cursor_height;
};
+/**
+ * drm_for_each_plane_mask - iterate over planes specified by bitmask
+ * @plane: the loop cursor
+ * @dev: the DRM device
+ * @plane_mask: bitmask of plane indices
+ *
+ * Iterate over all planes specified by bitmask.
+ */
+#define drm_for_each_plane_mask(plane, dev, plane_mask) \
+ list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \
+ if ((plane_mask) & (1 << drm_plane_index(plane)))
+
+
#define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
#define obj_to_connector(x) container_of(x, struct drm_connector, base)
#define obj_to_encoder(x) container_of(x, struct drm_encoder, base)