Commit | Line | Data |
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c103d1cf MR |
1 | /* |
2 | * Copyright (C) 2014 Intel Corporation | |
3 | * | |
4 | * DRM universal plane helper functions | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the "Software"), | |
8 | * to deal in the Software without restriction, including without limitation | |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
10 | * and/or sell copies of the Software, and to permit persons to whom the | |
11 | * Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice (including the next | |
14 | * paragraph) shall be included in all copies or substantial portions of the | |
15 | * Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
26 | #include <linux/list.h> | |
27 | #include <drm/drmP.h> | |
7daf8d54 | 28 | #include <drm/drm_plane_helper.h> |
c103d1cf | 29 | #include <drm/drm_rect.h> |
321ebf04 | 30 | #include <drm/drm_atomic.h> |
acf24a39 | 31 | #include <drm/drm_crtc_helper.h> |
321ebf04 | 32 | #include <drm/drm_atomic_helper.h> |
c103d1cf MR |
33 | |
34 | #define SUBPIXEL_MASK 0xffff | |
35 | ||
3150c7d0 DV |
36 | /** |
37 | * DOC: overview | |
38 | * | |
39 | * This helper library has two parts. The first part has support to implement | |
40 | * primary plane support on top of the normal CRTC configuration interface. | |
41 | * Since the legacy ->set_config interface ties the primary plane together with | |
42 | * the CRTC state this does not allow userspace to disable the primary plane | |
43 | * itself. To avoid too much duplicated code use | |
44 | * drm_plane_helper_check_update() which can be used to enforce the same | |
45 | * restrictions as primary planes had thus. The default primary plane only | |
46 | * expose XRBG8888 and ARGB8888 as valid pixel formats for the attached | |
47 | * framebuffer. | |
48 | * | |
49 | * Drivers are highly recommended to implement proper support for primary | |
50 | * planes, and newly merged drivers must not rely upon these transitional | |
51 | * helpers. | |
52 | * | |
53 | * The second part also implements transitional helpers which allow drivers to | |
54 | * gradually switch to the atomic helper infrastructure for plane updates. Once | |
55 | * that switch is complete drivers shouldn't use these any longer, instead using | |
56 | * the proper legacy implementations for update and disable plane hooks provided | |
57 | * by the atomic helpers. | |
58 | * | |
59 | * Again drivers are strongly urged to switch to the new interfaces. | |
092d01da DV |
60 | * |
61 | * The plane helpers share the function table structures with other helpers, | |
62 | * specifically also the atomic helpers. See struct &drm_plane_helper_funcs for | |
63 | * the details. | |
3150c7d0 DV |
64 | */ |
65 | ||
c103d1cf MR |
66 | /* |
67 | * Returns the connectors currently associated with a CRTC. This function | |
68 | * should be called twice: once with a NULL connector list to retrieve | |
69 | * the list size, and once with the properly allocated list to be filled in. | |
70 | */ | |
71 | static int get_connectors_for_crtc(struct drm_crtc *crtc, | |
72 | struct drm_connector **connector_list, | |
73 | int num_connectors) | |
74 | { | |
75 | struct drm_device *dev = crtc->dev; | |
76 | struct drm_connector *connector; | |
77 | int count = 0; | |
78 | ||
6e9f798d DV |
79 | /* |
80 | * Note: Once we change the plane hooks to more fine-grained locking we | |
81 | * need to grab the connection_mutex here to be able to make these | |
82 | * checks. | |
83 | */ | |
51fd371b | 84 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
6e9f798d | 85 | |
9a9f5ce8 | 86 | drm_for_each_connector(connector, dev) { |
c103d1cf MR |
87 | if (connector->encoder && connector->encoder->crtc == crtc) { |
88 | if (connector_list != NULL && count < num_connectors) | |
89 | *(connector_list++) = connector; | |
90 | ||
91 | count++; | |
92 | } | |
9a9f5ce8 | 93 | } |
c103d1cf MR |
94 | |
95 | return count; | |
96 | } | |
97 | ||
7daf8d54 | 98 | /** |
df86af91 VS |
99 | * drm_plane_helper_check_state() - Check plane state for validity |
100 | * @state: plane state to check | |
7daf8d54 MR |
101 | * @clip: integer clipping coordinates |
102 | * @min_scale: minimum @src:@dest scaling factor in 16.16 fixed point | |
103 | * @max_scale: maximum @src:@dest scaling factor in 16.16 fixed point | |
104 | * @can_position: is it legal to position the plane such that it | |
105 | * doesn't cover the entire crtc? This will generally | |
106 | * only be false for primary planes. | |
107 | * @can_update_disabled: can the plane be updated while the crtc | |
108 | * is disabled? | |
7daf8d54 | 109 | * |
df86af91 VS |
110 | * Checks that a desired plane update is valid, and updates various |
111 | * bits of derived state (clipped coordinates etc.). Drivers that provide | |
7daf8d54 MR |
112 | * their own plane handling rather than helper-provided implementations may |
113 | * still wish to call this function to avoid duplication of error checking | |
114 | * code. | |
115 | * | |
116 | * RETURNS: | |
117 | * Zero if update appears valid, error code on failure | |
118 | */ | |
df86af91 VS |
119 | int drm_plane_helper_check_state(struct drm_plane_state *state, |
120 | const struct drm_rect *clip, | |
121 | int min_scale, | |
122 | int max_scale, | |
123 | bool can_position, | |
124 | bool can_update_disabled) | |
7daf8d54 | 125 | { |
df86af91 VS |
126 | struct drm_crtc *crtc = state->crtc; |
127 | struct drm_framebuffer *fb = state->fb; | |
128 | struct drm_rect *src = &state->src; | |
129 | struct drm_rect *dst = &state->dst; | |
130 | unsigned int rotation = state->rotation; | |
7daf8d54 MR |
131 | int hscale, vscale; |
132 | ||
df86af91 VS |
133 | src->x1 = state->src_x; |
134 | src->y1 = state->src_y; | |
135 | src->x2 = state->src_x + state->src_w; | |
136 | src->y2 = state->src_y + state->src_h; | |
137 | ||
138 | dst->x1 = state->crtc_x; | |
139 | dst->y1 = state->crtc_y; | |
140 | dst->x2 = state->crtc_x + state->crtc_w; | |
141 | dst->y2 = state->crtc_y + state->crtc_h; | |
142 | ||
7432ca5a | 143 | if (!fb) { |
df86af91 | 144 | state->visible = false; |
7432ca5a MR |
145 | return 0; |
146 | } | |
147 | ||
148 | /* crtc should only be NULL when disabling (i.e., !fb) */ | |
149 | if (WARN_ON(!crtc)) { | |
df86af91 | 150 | state->visible = false; |
7432ca5a MR |
151 | return 0; |
152 | } | |
153 | ||
7daf8d54 MR |
154 | if (!crtc->enabled && !can_update_disabled) { |
155 | DRM_DEBUG_KMS("Cannot update plane of a disabled CRTC.\n"); | |
156 | return -EINVAL; | |
157 | } | |
158 | ||
9b8b013d VS |
159 | drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation); |
160 | ||
7daf8d54 | 161 | /* Check scaling */ |
df86af91 VS |
162 | hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale); |
163 | vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale); | |
7daf8d54 MR |
164 | if (hscale < 0 || vscale < 0) { |
165 | DRM_DEBUG_KMS("Invalid scaling of plane\n"); | |
df86af91 VS |
166 | drm_rect_debug_print("src: ", &state->src, true); |
167 | drm_rect_debug_print("dst: ", &state->dst, false); | |
7daf8d54 MR |
168 | return -ERANGE; |
169 | } | |
170 | ||
df86af91 | 171 | state->visible = drm_rect_clip_scaled(src, dst, clip, hscale, vscale); |
9b8b013d VS |
172 | |
173 | drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation); | |
174 | ||
df86af91 | 175 | if (!state->visible) |
7daf8d54 MR |
176 | /* |
177 | * Plane isn't visible; some drivers can handle this | |
178 | * so we just return success here. Drivers that can't | |
179 | * (including those that use the primary plane helper's | |
180 | * update function) will return an error from their | |
181 | * update_plane handler. | |
182 | */ | |
183 | return 0; | |
184 | ||
df86af91 | 185 | if (!can_position && !drm_rect_equals(dst, clip)) { |
7daf8d54 | 186 | DRM_DEBUG_KMS("Plane must cover entire CRTC\n"); |
df86af91 | 187 | drm_rect_debug_print("dst: ", dst, false); |
f980a71a | 188 | drm_rect_debug_print("clip: ", clip, false); |
7daf8d54 MR |
189 | return -EINVAL; |
190 | } | |
191 | ||
192 | return 0; | |
193 | } | |
df86af91 VS |
194 | EXPORT_SYMBOL(drm_plane_helper_check_state); |
195 | ||
196 | /** | |
197 | * drm_plane_helper_check_update() - Check plane update for validity | |
198 | * @plane: plane object to update | |
199 | * @crtc: owning CRTC of owning plane | |
200 | * @fb: framebuffer to flip onto plane | |
201 | * @src: source coordinates in 16.16 fixed point | |
5ee4c8f0 | 202 | * @dst: integer destination coordinates |
df86af91 VS |
203 | * @clip: integer clipping coordinates |
204 | * @rotation: plane rotation | |
205 | * @min_scale: minimum @src:@dest scaling factor in 16.16 fixed point | |
206 | * @max_scale: maximum @src:@dest scaling factor in 16.16 fixed point | |
207 | * @can_position: is it legal to position the plane such that it | |
208 | * doesn't cover the entire crtc? This will generally | |
209 | * only be false for primary planes. | |
210 | * @can_update_disabled: can the plane be updated while the crtc | |
211 | * is disabled? | |
212 | * @visible: output parameter indicating whether plane is still visible after | |
213 | * clipping | |
214 | * | |
215 | * Checks that a desired plane update is valid. Drivers that provide | |
216 | * their own plane handling rather than helper-provided implementations may | |
217 | * still wish to call this function to avoid duplication of error checking | |
218 | * code. | |
219 | * | |
220 | * RETURNS: | |
221 | * Zero if update appears valid, error code on failure | |
222 | */ | |
223 | int drm_plane_helper_check_update(struct drm_plane *plane, | |
224 | struct drm_crtc *crtc, | |
225 | struct drm_framebuffer *fb, | |
226 | struct drm_rect *src, | |
227 | struct drm_rect *dst, | |
228 | const struct drm_rect *clip, | |
229 | unsigned int rotation, | |
230 | int min_scale, | |
231 | int max_scale, | |
232 | bool can_position, | |
233 | bool can_update_disabled, | |
234 | bool *visible) | |
235 | { | |
236 | struct drm_plane_state state = { | |
237 | .plane = plane, | |
238 | .crtc = crtc, | |
239 | .fb = fb, | |
240 | .src_x = src->x1, | |
241 | .src_y = src->y1, | |
242 | .src_w = drm_rect_width(src), | |
243 | .src_h = drm_rect_height(src), | |
244 | .crtc_x = dst->x1, | |
245 | .crtc_y = dst->y1, | |
246 | .crtc_w = drm_rect_width(dst), | |
247 | .crtc_h = drm_rect_height(dst), | |
248 | .rotation = rotation, | |
249 | .visible = *visible, | |
250 | }; | |
251 | int ret; | |
252 | ||
253 | ret = drm_plane_helper_check_state(&state, clip, | |
254 | min_scale, max_scale, | |
255 | can_position, | |
256 | can_update_disabled); | |
257 | if (ret) | |
258 | return ret; | |
259 | ||
260 | *src = state.src; | |
261 | *dst = state.dst; | |
262 | *visible = state.visible; | |
263 | ||
264 | return 0; | |
265 | } | |
7daf8d54 MR |
266 | EXPORT_SYMBOL(drm_plane_helper_check_update); |
267 | ||
c103d1cf MR |
268 | /** |
269 | * drm_primary_helper_update() - Helper for primary plane update | |
270 | * @plane: plane object to update | |
271 | * @crtc: owning CRTC of owning plane | |
272 | * @fb: framebuffer to flip onto plane | |
273 | * @crtc_x: x offset of primary plane on crtc | |
274 | * @crtc_y: y offset of primary plane on crtc | |
275 | * @crtc_w: width of primary plane rectangle on crtc | |
276 | * @crtc_h: height of primary plane rectangle on crtc | |
277 | * @src_x: x offset of @fb for panning | |
278 | * @src_y: y offset of @fb for panning | |
279 | * @src_w: width of source rectangle in @fb | |
280 | * @src_h: height of source rectangle in @fb | |
281 | * | |
282 | * Provides a default plane update handler for primary planes. This is handler | |
283 | * is called in response to a userspace SetPlane operation on the plane with a | |
284 | * non-NULL framebuffer. We call the driver's modeset handler to update the | |
285 | * framebuffer. | |
286 | * | |
287 | * SetPlane() on a primary plane of a disabled CRTC is not supported, and will | |
288 | * return an error. | |
289 | * | |
290 | * Note that we make some assumptions about hardware limitations that may not be | |
291 | * true for all hardware -- | |
2e7a5701 DV |
292 | * |
293 | * 1. Primary plane cannot be repositioned. | |
294 | * 2. Primary plane cannot be scaled. | |
295 | * 3. Primary plane must cover the entire CRTC. | |
296 | * 4. Subpixel positioning is not supported. | |
297 | * | |
c103d1cf MR |
298 | * Drivers for hardware that don't have these restrictions can provide their |
299 | * own implementation rather than using this helper. | |
300 | * | |
301 | * RETURNS: | |
302 | * Zero on success, error code on failure | |
303 | */ | |
304 | int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *crtc, | |
305 | struct drm_framebuffer *fb, | |
306 | int crtc_x, int crtc_y, | |
307 | unsigned int crtc_w, unsigned int crtc_h, | |
308 | uint32_t src_x, uint32_t src_y, | |
309 | uint32_t src_w, uint32_t src_h) | |
310 | { | |
311 | struct drm_mode_set set = { | |
312 | .crtc = crtc, | |
313 | .fb = fb, | |
314 | .mode = &crtc->mode, | |
315 | .x = src_x >> 16, | |
316 | .y = src_y >> 16, | |
317 | }; | |
7daf8d54 MR |
318 | struct drm_rect src = { |
319 | .x1 = src_x, | |
320 | .y1 = src_y, | |
321 | .x2 = src_x + src_w, | |
322 | .y2 = src_y + src_h, | |
323 | }; | |
c103d1cf MR |
324 | struct drm_rect dest = { |
325 | .x1 = crtc_x, | |
326 | .y1 = crtc_y, | |
327 | .x2 = crtc_x + crtc_w, | |
328 | .y2 = crtc_y + crtc_h, | |
329 | }; | |
7daf8d54 | 330 | const struct drm_rect clip = { |
c103d1cf MR |
331 | .x2 = crtc->mode.hdisplay, |
332 | .y2 = crtc->mode.vdisplay, | |
333 | }; | |
334 | struct drm_connector **connector_list; | |
c103d1cf | 335 | int num_connectors, ret; |
7daf8d54 | 336 | bool visible; |
c103d1cf | 337 | |
7daf8d54 MR |
338 | ret = drm_plane_helper_check_update(plane, crtc, fb, |
339 | &src, &dest, &clip, | |
31ad61e4 | 340 | DRM_ROTATE_0, |
7daf8d54 MR |
341 | DRM_PLANE_HELPER_NO_SCALING, |
342 | DRM_PLANE_HELPER_NO_SCALING, | |
343 | false, false, &visible); | |
c103d1cf MR |
344 | if (ret) |
345 | return ret; | |
346 | ||
7daf8d54 MR |
347 | if (!visible) |
348 | /* | |
349 | * Primary plane isn't visible. Note that unless a driver | |
350 | * provides their own disable function, this will just | |
351 | * wind up returning -EINVAL to userspace. | |
352 | */ | |
353 | return plane->funcs->disable_plane(plane); | |
354 | ||
c103d1cf MR |
355 | /* Find current connectors for CRTC */ |
356 | num_connectors = get_connectors_for_crtc(crtc, NULL, 0); | |
357 | BUG_ON(num_connectors == 0); | |
358 | connector_list = kzalloc(num_connectors * sizeof(*connector_list), | |
359 | GFP_KERNEL); | |
360 | if (!connector_list) | |
361 | return -ENOMEM; | |
362 | get_connectors_for_crtc(crtc, connector_list, num_connectors); | |
363 | ||
364 | set.connectors = connector_list; | |
365 | set.num_connectors = num_connectors; | |
366 | ||
367 | /* | |
0fe27f06 | 368 | * We call set_config() directly here rather than using |
c103d1cf MR |
369 | * drm_mode_set_config_internal. We're reprogramming the same |
370 | * connectors that were already in use, so we shouldn't need the extra | |
371 | * cross-CRTC fb refcounting to accomodate stealing connectors. | |
372 | * drm_mode_setplane() already handles the basic refcounting for the | |
373 | * framebuffers involved in this operation. | |
374 | */ | |
c103d1cf | 375 | ret = crtc->funcs->set_config(&set); |
c103d1cf MR |
376 | |
377 | kfree(connector_list); | |
378 | return ret; | |
379 | } | |
380 | EXPORT_SYMBOL(drm_primary_helper_update); | |
381 | ||
382 | /** | |
383 | * drm_primary_helper_disable() - Helper for primary plane disable | |
384 | * @plane: plane to disable | |
385 | * | |
386 | * Provides a default plane disable handler for primary planes. This is handler | |
387 | * is called in response to a userspace SetPlane operation on the plane with a | |
b6ccd7b9 DV |
388 | * NULL framebuffer parameter. It unconditionally fails the disable call with |
389 | * -EINVAL the only way to disable the primary plane without driver support is | |
390 | * to disable the entier CRTC. Which does not match the plane ->disable hook. | |
c103d1cf MR |
391 | * |
392 | * Note that some hardware may be able to disable the primary plane without | |
393 | * disabling the whole CRTC. Drivers for such hardware should provide their | |
394 | * own disable handler that disables just the primary plane (and they'll likely | |
395 | * need to provide their own update handler as well to properly re-enable a | |
396 | * disabled primary plane). | |
397 | * | |
398 | * RETURNS: | |
b6ccd7b9 | 399 | * Unconditionally returns -EINVAL. |
c103d1cf MR |
400 | */ |
401 | int drm_primary_helper_disable(struct drm_plane *plane) | |
402 | { | |
b6ccd7b9 | 403 | return -EINVAL; |
c103d1cf MR |
404 | } |
405 | EXPORT_SYMBOL(drm_primary_helper_disable); | |
406 | ||
407 | /** | |
408 | * drm_primary_helper_destroy() - Helper for primary plane destruction | |
409 | * @plane: plane to destroy | |
410 | * | |
411 | * Provides a default plane destroy handler for primary planes. This handler | |
412 | * is called during CRTC destruction. We disable the primary plane, remove | |
413 | * it from the DRM plane list, and deallocate the plane structure. | |
414 | */ | |
415 | void drm_primary_helper_destroy(struct drm_plane *plane) | |
416 | { | |
c103d1cf MR |
417 | drm_plane_cleanup(plane); |
418 | kfree(plane); | |
419 | } | |
420 | EXPORT_SYMBOL(drm_primary_helper_destroy); | |
421 | ||
422 | const struct drm_plane_funcs drm_primary_helper_funcs = { | |
423 | .update_plane = drm_primary_helper_update, | |
424 | .disable_plane = drm_primary_helper_disable, | |
425 | .destroy = drm_primary_helper_destroy, | |
426 | }; | |
427 | EXPORT_SYMBOL(drm_primary_helper_funcs); | |
428 | ||
2f324b42 DV |
429 | int drm_plane_helper_commit(struct drm_plane *plane, |
430 | struct drm_plane_state *plane_state, | |
431 | struct drm_framebuffer *old_fb) | |
acf24a39 | 432 | { |
be26a66d | 433 | const struct drm_plane_helper_funcs *plane_funcs; |
acf24a39 | 434 | struct drm_crtc *crtc[2]; |
be26a66d | 435 | const struct drm_crtc_helper_funcs *crtc_funcs[2]; |
acf24a39 DV |
436 | int i, ret = 0; |
437 | ||
438 | plane_funcs = plane->helper_private; | |
439 | ||
440 | /* Since this is a transitional helper we can't assume that plane->state | |
441 | * is always valid. Hence we need to use plane->crtc instead of | |
442 | * plane->state->crtc as the old crtc. */ | |
443 | crtc[0] = plane->crtc; | |
444 | crtc[1] = crtc[0] != plane_state->crtc ? plane_state->crtc : NULL; | |
445 | ||
446 | for (i = 0; i < 2; i++) | |
447 | crtc_funcs[i] = crtc[i] ? crtc[i]->helper_private : NULL; | |
448 | ||
449 | if (plane_funcs->atomic_check) { | |
450 | ret = plane_funcs->atomic_check(plane, plane_state); | |
451 | if (ret) | |
452 | goto out; | |
453 | } | |
454 | ||
92890583 MR |
455 | if (plane_funcs->prepare_fb && plane_state->fb && |
456 | plane_state->fb != old_fb) { | |
844f9111 | 457 | ret = plane_funcs->prepare_fb(plane, |
d136dfee | 458 | plane_state); |
acf24a39 DV |
459 | if (ret) |
460 | goto out; | |
461 | } | |
462 | ||
463 | /* Point of no return, commit sw state. */ | |
464 | swap(plane->state, plane_state); | |
465 | ||
466 | for (i = 0; i < 2; i++) { | |
467 | if (crtc_funcs[i] && crtc_funcs[i]->atomic_begin) | |
613d2b27 | 468 | crtc_funcs[i]->atomic_begin(crtc[i], crtc[i]->state); |
acf24a39 DV |
469 | } |
470 | ||
407b8bd9 TR |
471 | /* |
472 | * Drivers may optionally implement the ->atomic_disable callback, so | |
473 | * special-case that here. | |
474 | */ | |
475 | if (drm_atomic_plane_disabling(plane, plane_state) && | |
476 | plane_funcs->atomic_disable) | |
477 | plane_funcs->atomic_disable(plane, plane_state); | |
478 | else | |
479 | plane_funcs->atomic_update(plane, plane_state); | |
acf24a39 DV |
480 | |
481 | for (i = 0; i < 2; i++) { | |
482 | if (crtc_funcs[i] && crtc_funcs[i]->atomic_flush) | |
613d2b27 | 483 | crtc_funcs[i]->atomic_flush(crtc[i], crtc[i]->state); |
acf24a39 DV |
484 | } |
485 | ||
92890583 MR |
486 | /* |
487 | * If we only moved the plane and didn't change fb's, there's no need to | |
488 | * wait for vblank. | |
489 | */ | |
490 | if (plane->state->fb == old_fb) | |
491 | goto out; | |
492 | ||
acf24a39 DV |
493 | for (i = 0; i < 2; i++) { |
494 | if (!crtc[i]) | |
495 | continue; | |
496 | ||
2e7f43c4 DV |
497 | if (crtc[i]->cursor == plane) |
498 | continue; | |
499 | ||
acf24a39 DV |
500 | /* There's no other way to figure out whether the crtc is running. */ |
501 | ret = drm_crtc_vblank_get(crtc[i]); | |
502 | if (ret == 0) { | |
503 | drm_crtc_wait_one_vblank(crtc[i]); | |
504 | drm_crtc_vblank_put(crtc[i]); | |
505 | } | |
506 | ||
507 | ret = 0; | |
508 | } | |
509 | ||
844f9111 ML |
510 | if (plane_funcs->cleanup_fb) |
511 | plane_funcs->cleanup_fb(plane, plane_state); | |
acf24a39 DV |
512 | out: |
513 | if (plane_state) { | |
514 | if (plane->funcs->atomic_destroy_state) | |
515 | plane->funcs->atomic_destroy_state(plane, plane_state); | |
516 | else | |
321ebf04 | 517 | drm_atomic_helper_plane_destroy_state(plane, plane_state); |
acf24a39 DV |
518 | } |
519 | ||
520 | return ret; | |
521 | } | |
522 | ||
523 | /** | |
6a425c2a | 524 | * drm_plane_helper_update() - Transitional helper for plane update |
acf24a39 DV |
525 | * @plane: plane object to update |
526 | * @crtc: owning CRTC of owning plane | |
527 | * @fb: framebuffer to flip onto plane | |
528 | * @crtc_x: x offset of primary plane on crtc | |
529 | * @crtc_y: y offset of primary plane on crtc | |
530 | * @crtc_w: width of primary plane rectangle on crtc | |
531 | * @crtc_h: height of primary plane rectangle on crtc | |
532 | * @src_x: x offset of @fb for panning | |
533 | * @src_y: y offset of @fb for panning | |
534 | * @src_w: width of source rectangle in @fb | |
535 | * @src_h: height of source rectangle in @fb | |
536 | * | |
537 | * Provides a default plane update handler using the atomic plane update | |
538 | * functions. It is fully left to the driver to check plane constraints and | |
539 | * handle corner-cases like a fully occluded or otherwise invisible plane. | |
540 | * | |
541 | * This is useful for piecewise transitioning of a driver to the atomic helpers. | |
542 | * | |
543 | * RETURNS: | |
544 | * Zero on success, error code on failure | |
545 | */ | |
546 | int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc, | |
547 | struct drm_framebuffer *fb, | |
548 | int crtc_x, int crtc_y, | |
549 | unsigned int crtc_w, unsigned int crtc_h, | |
550 | uint32_t src_x, uint32_t src_y, | |
551 | uint32_t src_w, uint32_t src_h) | |
552 | { | |
553 | struct drm_plane_state *plane_state; | |
554 | ||
555 | if (plane->funcs->atomic_duplicate_state) | |
556 | plane_state = plane->funcs->atomic_duplicate_state(plane); | |
e4f31ad2 DV |
557 | else { |
558 | if (!plane->state) | |
559 | drm_atomic_helper_plane_reset(plane); | |
560 | ||
321ebf04 | 561 | plane_state = drm_atomic_helper_plane_duplicate_state(plane); |
e4f31ad2 | 562 | } |
acf24a39 DV |
563 | if (!plane_state) |
564 | return -ENOMEM; | |
07cc0ef6 | 565 | plane_state->plane = plane; |
acf24a39 DV |
566 | |
567 | plane_state->crtc = crtc; | |
321ebf04 | 568 | drm_atomic_set_fb_for_plane(plane_state, fb); |
acf24a39 DV |
569 | plane_state->crtc_x = crtc_x; |
570 | plane_state->crtc_y = crtc_y; | |
571 | plane_state->crtc_h = crtc_h; | |
572 | plane_state->crtc_w = crtc_w; | |
573 | plane_state->src_x = src_x; | |
574 | plane_state->src_y = src_y; | |
575 | plane_state->src_h = src_h; | |
576 | plane_state->src_w = src_w; | |
577 | ||
2f324b42 | 578 | return drm_plane_helper_commit(plane, plane_state, plane->fb); |
acf24a39 DV |
579 | } |
580 | EXPORT_SYMBOL(drm_plane_helper_update); | |
581 | ||
582 | /** | |
6a425c2a | 583 | * drm_plane_helper_disable() - Transitional helper for plane disable |
acf24a39 DV |
584 | * @plane: plane to disable |
585 | * | |
586 | * Provides a default plane disable handler using the atomic plane update | |
587 | * functions. It is fully left to the driver to check plane constraints and | |
588 | * handle corner-cases like a fully occluded or otherwise invisible plane. | |
589 | * | |
590 | * This is useful for piecewise transitioning of a driver to the atomic helpers. | |
591 | * | |
592 | * RETURNS: | |
593 | * Zero on success, error code on failure | |
594 | */ | |
595 | int drm_plane_helper_disable(struct drm_plane *plane) | |
596 | { | |
597 | struct drm_plane_state *plane_state; | |
598 | ||
599 | /* crtc helpers love to call disable functions for already disabled hw | |
600 | * functions. So cope with that. */ | |
601 | if (!plane->crtc) | |
602 | return 0; | |
603 | ||
604 | if (plane->funcs->atomic_duplicate_state) | |
605 | plane_state = plane->funcs->atomic_duplicate_state(plane); | |
e4f31ad2 DV |
606 | else { |
607 | if (!plane->state) | |
608 | drm_atomic_helper_plane_reset(plane); | |
609 | ||
321ebf04 | 610 | plane_state = drm_atomic_helper_plane_duplicate_state(plane); |
e4f31ad2 | 611 | } |
acf24a39 DV |
612 | if (!plane_state) |
613 | return -ENOMEM; | |
07cc0ef6 | 614 | plane_state->plane = plane; |
acf24a39 DV |
615 | |
616 | plane_state->crtc = NULL; | |
321ebf04 | 617 | drm_atomic_set_fb_for_plane(plane_state, NULL); |
acf24a39 | 618 | |
2f324b42 | 619 | return drm_plane_helper_commit(plane, plane_state, plane->fb); |
acf24a39 DV |
620 | } |
621 | EXPORT_SYMBOL(drm_plane_helper_disable); |