40  * sub-pixel accuracy, which is scaled up to a pixel-aligned destination
84  * ever be sampled, which is important when applying more sophisticated
93  * 	plane-wide opacity, from transparent (0) to opaque (0xffff). It can be
96  *	pre-multiplied by the global alpha associated to the plane.
116  * drm_plane_create_alpha_property - create a new alpha property
132 	prop = drm_property_create_range(plane->dev, 0, "alpha",  in drm_plane_create_alpha_property()
135 		return -ENOMEM;  in drm_plane_create_alpha_property()
137 	drm_object_attach_property(&plane->base, prop, DRM_BLEND_ALPHA_OPAQUE);  in drm_plane_create_alpha_property()
138 	plane->alpha_property = prop;  in drm_plane_create_alpha_property()
140 	if (plane->state)  in drm_plane_create_alpha_property()
141 		plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE;  in drm_plane_create_alpha_property()
148  * drm_plane_create_rotation_property - create a new rotation property
164  * 	"rotate-0"
166  * 	"rotate-90"
168  * 	"rotate-180"
170  * 	"rotate-270"
172  * 	"reflect-x"
174  * 	"reflect-y"
178  * rotation. After reflection, the rotation is applied to the image sampled from
186 		{ __builtin_ffs(DRM_MODE_ROTATE_0) - 1,   "rotate-0" },  in drm_plane_create_rotation_property()
187 		{ __builtin_ffs(DRM_MODE_ROTATE_90) - 1,  "rotate-90" },  in drm_plane_create_rotation_property()
188 		{ __builtin_ffs(DRM_MODE_ROTATE_180) - 1, "rotate-180" },  in drm_plane_create_rotation_property()
189 		{ __builtin_ffs(DRM_MODE_ROTATE_270) - 1, "rotate-270" },  in drm_plane_create_rotation_property()
190 		{ __builtin_ffs(DRM_MODE_REFLECT_X) - 1,  "reflect-x" },  in drm_plane_create_rotation_property()
191 		{ __builtin_ffs(DRM_MODE_REFLECT_Y) - 1,  "reflect-y" },  in drm_plane_create_rotation_property()
199 	prop = drm_property_create_bitmask(plane->dev, 0, "rotation",  in drm_plane_create_rotation_property()
203 		return -ENOMEM;  in drm_plane_create_rotation_property()
205 	drm_object_attach_property(&plane->base, prop, rotation);  in drm_plane_create_rotation_property()
207 	if (plane->state)  in drm_plane_create_rotation_property()
208 		plane->state->rotation = rotation;  in drm_plane_create_rotation_property()
210 	plane->rotation_property = prop;  in drm_plane_create_rotation_property()
217  * drm_rotation_simplify() - Try to simplify the rotation
249  * drm_plane_create_zpos_property - create mutable zpos property
262  * should be set to 0 and max to maximal number of planes for given crtc - 1.
284 	prop = drm_property_create_range(plane->dev, 0, "zpos", min, max);  in drm_plane_create_zpos_property()
286 		return -ENOMEM;  in drm_plane_create_zpos_property()
288 	drm_object_attach_property(&plane->base, prop, zpos);  in drm_plane_create_zpos_property()
290 	plane->zpos_property = prop;  in drm_plane_create_zpos_property()
292 	if (plane->state) {  in drm_plane_create_zpos_property()
293 		plane->state->zpos = zpos;  in drm_plane_create_zpos_property()
294 		plane->state->normalized_zpos = zpos;  in drm_plane_create_zpos_property()
302  * drm_plane_create_zpos_immutable_property - create immuttable zpos property
322 	prop = drm_property_create_range(plane->dev, DRM_MODE_PROP_IMMUTABLE,  in drm_plane_create_zpos_immutable_property()
325 		return -ENOMEM;  in drm_plane_create_zpos_immutable_property()
327 	drm_object_attach_property(&plane->base, prop, zpos);  in drm_plane_create_zpos_immutable_property()
329 	plane->zpos_property = prop;  in drm_plane_create_zpos_immutable_property()
331 	if (plane->state) {  in drm_plane_create_zpos_immutable_property()
332 		plane->state->zpos = zpos;  in drm_plane_create_zpos_immutable_property()
333 		plane->state->normalized_zpos = zpos;  in drm_plane_create_zpos_immutable_property()
345 	if (sa->zpos != sb->zpos)  in drm_atomic_state_zpos_cmp()
346 		return sa->zpos - sb->zpos;  in drm_atomic_state_zpos_cmp()
348 		return sa->plane->base.id - sb->plane->base.id;  in drm_atomic_state_zpos_cmp()
354 	struct drm_atomic_state *state = crtc_state->state;  in drm_atomic_helper_crtc_normalize_zpos()
355 	struct drm_device *dev = crtc->dev;  in drm_atomic_helper_crtc_normalize_zpos()
356 	int total_planes = dev->mode_config.num_total_plane;  in drm_atomic_helper_crtc_normalize_zpos()
363 			 crtc->base.id, crtc->name);  in drm_atomic_helper_crtc_normalize_zpos()
367 		return -ENOMEM;  in drm_atomic_helper_crtc_normalize_zpos()
373 	drm_for_each_plane_mask(plane, dev, crtc_state->plane_mask) {  in drm_atomic_helper_crtc_normalize_zpos()
382 				 plane->base.id, plane->name,  in drm_atomic_helper_crtc_normalize_zpos()
383 				 plane_state->zpos);  in drm_atomic_helper_crtc_normalize_zpos()
389 		plane = states[i]->plane;  in drm_atomic_helper_crtc_normalize_zpos()
391 		states[i]->normalized_zpos = i;  in drm_atomic_helper_crtc_normalize_zpos()
393 				 plane->base.id, plane->name, i);  in drm_atomic_helper_crtc_normalize_zpos()
395 	crtc_state->zpos_changed = true;  in drm_atomic_helper_crtc_normalize_zpos()
403  * drm_atomic_normalize_zpos - calculate normalized zpos values for all crtcs
418  * Zero for success or -errno
430 		crtc = new_plane_state->crtc;  in drm_atomic_normalize_zpos()
433 		if (old_plane_state->zpos != new_plane_state->zpos) {  in drm_atomic_normalize_zpos()
435 			new_crtc_state->zpos_changed = true;  in drm_atomic_normalize_zpos()
440 		if (old_crtc_state->plane_mask != new_crtc_state->plane_mask ||  in drm_atomic_normalize_zpos()
441 		    new_crtc_state->zpos_changed) {  in drm_atomic_normalize_zpos()