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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
4 * Author: Rob Clark <rob.clark@linaro.org>
5 */
6
7#include <drm/drm_atomic.h>
8#include <drm/drm_atomic_helper.h>
9#include <drm/drm_blend.h>
10#include <drm/drm_gem_atomic_helper.h>
11#include <drm/drm_fourcc.h>
12#include <drm/drm_framebuffer.h>
13
14#include "omap_dmm_tiler.h"
15#include "omap_drv.h"
16
17/*
18 * plane funcs
19 */
20
21#define to_omap_plane_state(x) container_of(x, struct omap_plane_state, base)
22
23struct omap_plane_state {
24 /* Must be first. */
25 struct drm_plane_state base;
26
27 struct omap_hw_overlay *overlay;
28 struct omap_hw_overlay *r_overlay; /* right overlay */
29};
30
31#define to_omap_plane(x) container_of(x, struct omap_plane, base)
32
33struct omap_plane {
34 struct drm_plane base;
35 enum omap_plane_id id;
36};
37
38bool is_omap_plane_dual_overlay(struct drm_plane_state *state)
39{
40 struct omap_plane_state *omap_state = to_omap_plane_state(state);
41
42 return !!omap_state->r_overlay;
43}
44
45static int omap_plane_prepare_fb(struct drm_plane *plane,
46 struct drm_plane_state *new_state)
47{
48 if (!new_state->fb)
49 return 0;
50
51 drm_gem_plane_helper_prepare_fb(plane, new_state);
52
53 return omap_framebuffer_pin(new_state->fb);
54}
55
56static void omap_plane_cleanup_fb(struct drm_plane *plane,
57 struct drm_plane_state *old_state)
58{
59 if (old_state->fb)
60 omap_framebuffer_unpin(old_state->fb);
61}
62
63static void omap_plane_atomic_update(struct drm_plane *plane,
64 struct drm_atomic_state *state)
65{
66 struct omap_drm_private *priv = plane->dev->dev_private;
67 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
68 plane);
69 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
70 plane);
71 struct omap_plane_state *new_omap_state;
72 struct omap_plane_state *old_omap_state;
73 struct omap_overlay_info info, r_info;
74 enum omap_plane_id ovl_id, r_ovl_id;
75 int ret;
76 bool dual_ovl;
77
78 new_omap_state = to_omap_plane_state(new_state);
79 old_omap_state = to_omap_plane_state(old_state);
80
81 dual_ovl = is_omap_plane_dual_overlay(new_state);
82
83 /* Cleanup previously held overlay if needed */
84 if (old_omap_state->overlay)
85 omap_overlay_update_state(priv, old_omap_state->overlay);
86 if (old_omap_state->r_overlay)
87 omap_overlay_update_state(priv, old_omap_state->r_overlay);
88
89 if (!new_omap_state->overlay) {
90 DBG("[PLANE:%d:%s] no overlay attached", plane->base.id, plane->name);
91 return;
92 }
93
94 ovl_id = new_omap_state->overlay->id;
95 DBG("%s, crtc=%p fb=%p", plane->name, new_state->crtc,
96 new_state->fb);
97
98 memset(&info, 0, sizeof(info));
99 info.rotation_type = OMAP_DSS_ROT_NONE;
100 info.rotation = DRM_MODE_ROTATE_0;
101 info.global_alpha = new_state->alpha >> 8;
102 info.zorder = new_state->normalized_zpos;
103 if (new_state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI)
104 info.pre_mult_alpha = 1;
105 else
106 info.pre_mult_alpha = 0;
107 info.color_encoding = new_state->color_encoding;
108 info.color_range = new_state->color_range;
109
110 r_info = info;
111
112 /* update scanout: */
113 omap_framebuffer_update_scanout(new_state->fb, new_state, &info,
114 dual_ovl ? &r_info : NULL);
115
116 DBG("%s: %dx%d -> %dx%d (%d)",
117 new_omap_state->overlay->name, info.width, info.height,
118 info.out_width, info.out_height, info.screen_width);
119 DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
120 &info.paddr, &info.p_uv_addr);
121
122 if (dual_ovl) {
123 r_ovl_id = new_omap_state->r_overlay->id;
124 /*
125 * If the current plane uses 2 hw planes the very next
126 * zorder is used by the r_overlay so we just use the
127 * main overlay zorder + 1
128 */
129 r_info.zorder = info.zorder + 1;
130
131 DBG("%s: %dx%d -> %dx%d (%d)",
132 new_omap_state->r_overlay->name,
133 r_info.width, r_info.height,
134 r_info.out_width, r_info.out_height, r_info.screen_width);
135 DBG("%d,%d %pad %pad", r_info.pos_x, r_info.pos_y,
136 &r_info.paddr, &r_info.p_uv_addr);
137 }
138
139 /* and finally, update omapdss: */
140 ret = dispc_ovl_setup(priv->dispc, ovl_id, &info,
141 omap_crtc_timings(new_state->crtc), false,
142 omap_crtc_channel(new_state->crtc));
143 if (ret) {
144 dev_err(plane->dev->dev, "Failed to setup plane %s\n",
145 plane->name);
146 dispc_ovl_enable(priv->dispc, ovl_id, false);
147 return;
148 }
149
150 dispc_ovl_enable(priv->dispc, ovl_id, true);
151
152 if (dual_ovl) {
153 ret = dispc_ovl_setup(priv->dispc, r_ovl_id, &r_info,
154 omap_crtc_timings(new_state->crtc), false,
155 omap_crtc_channel(new_state->crtc));
156 if (ret) {
157 dev_err(plane->dev->dev, "Failed to setup plane right-overlay %s\n",
158 plane->name);
159 dispc_ovl_enable(priv->dispc, r_ovl_id, false);
160 dispc_ovl_enable(priv->dispc, ovl_id, false);
161 return;
162 }
163
164 dispc_ovl_enable(priv->dispc, r_ovl_id, true);
165 }
166}
167
168static void omap_plane_atomic_disable(struct drm_plane *plane,
169 struct drm_atomic_state *state)
170{
171 struct omap_drm_private *priv = plane->dev->dev_private;
172 struct omap_plane *omap_plane = to_omap_plane(plane);
173 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
174 plane);
175 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
176 plane);
177 struct omap_plane_state *new_omap_state;
178 struct omap_plane_state *old_omap_state;
179
180 new_omap_state = to_omap_plane_state(new_state);
181 old_omap_state = to_omap_plane_state(old_state);
182
183 if (!old_omap_state->overlay)
184 return;
185
186 new_state->rotation = DRM_MODE_ROTATE_0;
187 new_state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : omap_plane->id;
188
189 omap_overlay_update_state(priv, old_omap_state->overlay);
190 new_omap_state->overlay = NULL;
191
192 if (is_omap_plane_dual_overlay(old_state)) {
193 omap_overlay_update_state(priv, old_omap_state->r_overlay);
194 new_omap_state->r_overlay = NULL;
195 }
196}
197
198#define FRAC_16_16(mult, div) (((mult) << 16) / (div))
199
200static int omap_plane_atomic_check(struct drm_plane *plane,
201 struct drm_atomic_state *state)
202{
203 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
204 plane);
205 struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state,
206 plane);
207 struct omap_drm_private *priv = plane->dev->dev_private;
208 struct omap_plane_state *omap_state = to_omap_plane_state(new_plane_state);
209 struct omap_global_state *omap_overlay_global_state;
210 struct drm_crtc_state *crtc_state;
211 bool new_r_hw_overlay = false;
212 bool new_hw_overlay = false;
213 u32 max_width, max_height;
214 struct drm_crtc *crtc;
215 u16 width, height;
216 u32 caps = 0;
217 u32 fourcc;
218 int ret;
219
220 omap_overlay_global_state = omap_get_global_state(state);
221 if (IS_ERR(omap_overlay_global_state))
222 return PTR_ERR(omap_overlay_global_state);
223
224 dispc_ovl_get_max_size(priv->dispc, &width, &height);
225 max_width = width << 16;
226 max_height = height << 16;
227
228 crtc = new_plane_state->crtc ? new_plane_state->crtc : plane->state->crtc;
229 if (!crtc)
230 return 0;
231
232 crtc_state = drm_atomic_get_existing_crtc_state(state, crtc);
233 /* we should have a crtc state if the plane is attached to a crtc */
234 if (WARN_ON(!crtc_state))
235 return 0;
236
237 /*
238 * Note: these are just sanity checks to filter out totally bad scaling
239 * factors. The real limits must be calculated case by case, and
240 * unfortunately we currently do those checks only at the commit
241 * phase in dispc.
242 */
243 ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
244 FRAC_16_16(1, 8), FRAC_16_16(8, 1),
245 true, true);
246 if (ret)
247 return ret;
248
249 DBG("%s: visible %d -> %d", plane->name,
250 old_plane_state->visible, new_plane_state->visible);
251
252 if (!new_plane_state->visible) {
253 omap_overlay_release(state, omap_state->overlay);
254 omap_overlay_release(state, omap_state->r_overlay);
255 omap_state->overlay = NULL;
256 omap_state->r_overlay = NULL;
257 return 0;
258 }
259
260 if (new_plane_state->crtc_x < 0 || new_plane_state->crtc_y < 0)
261 return -EINVAL;
262
263 if (new_plane_state->crtc_x + new_plane_state->crtc_w > crtc_state->adjusted_mode.hdisplay)
264 return -EINVAL;
265
266 if (new_plane_state->crtc_y + new_plane_state->crtc_h > crtc_state->adjusted_mode.vdisplay)
267 return -EINVAL;
268
269 /* Make sure dimensions are within bounds. */
270 if (new_plane_state->src_h > max_height || new_plane_state->crtc_h > height)
271 return -EINVAL;
272
273
274 if (new_plane_state->src_w > max_width || new_plane_state->crtc_w > width) {
275 bool is_fourcc_yuv = new_plane_state->fb->format->is_yuv;
276
277 if (is_fourcc_yuv && (((new_plane_state->src_w >> 16) / 2 & 1) ||
278 new_plane_state->crtc_w / 2 & 1)) {
279 /*
280 * When calculating the split overlay width
281 * and it yield an odd value we will need to adjust
282 * the indivual width +/- 1. So make sure it fits
283 */
284 if (new_plane_state->src_w <= ((2 * width - 1) << 16) &&
285 new_plane_state->crtc_w <= (2 * width - 1))
286 new_r_hw_overlay = true;
287 else
288 return -EINVAL;
289 } else {
290 if (new_plane_state->src_w <= (2 * max_width) &&
291 new_plane_state->crtc_w <= (2 * width))
292 new_r_hw_overlay = true;
293 else
294 return -EINVAL;
295 }
296 }
297
298 if (new_plane_state->rotation != DRM_MODE_ROTATE_0 &&
299 !omap_framebuffer_supports_rotation(new_plane_state->fb))
300 return -EINVAL;
301
302 if ((new_plane_state->src_w >> 16) != new_plane_state->crtc_w ||
303 (new_plane_state->src_h >> 16) != new_plane_state->crtc_h)
304 caps |= OMAP_DSS_OVL_CAP_SCALE;
305
306 fourcc = new_plane_state->fb->format->format;
307
308 /*
309 * (re)allocate hw overlay if we don't have one or
310 * there is a caps mismatch
311 */
312 if (!omap_state->overlay || (caps & ~omap_state->overlay->caps)) {
313 new_hw_overlay = true;
314 } else {
315 /* check supported format */
316 if (!dispc_ovl_color_mode_supported(priv->dispc, omap_state->overlay->id,
317 fourcc))
318 new_hw_overlay = true;
319 }
320
321 /*
322 * check if we need two overlays and only have 1 or
323 * if we had 2 overlays but will only need 1
324 */
325 if ((new_r_hw_overlay && !omap_state->r_overlay) ||
326 (!new_r_hw_overlay && omap_state->r_overlay))
327 new_hw_overlay = true;
328
329 if (new_hw_overlay) {
330 struct omap_hw_overlay *old_ovl = omap_state->overlay;
331 struct omap_hw_overlay *old_r_ovl = omap_state->r_overlay;
332 struct omap_hw_overlay *new_ovl = NULL;
333 struct omap_hw_overlay *new_r_ovl = NULL;
334
335 omap_overlay_release(state, old_ovl);
336 omap_overlay_release(state, old_r_ovl);
337
338 ret = omap_overlay_assign(state, plane, caps, fourcc, &new_ovl,
339 new_r_hw_overlay ? &new_r_ovl : NULL);
340 if (ret) {
341 DBG("%s: failed to assign hw_overlay", plane->name);
342 omap_state->overlay = NULL;
343 omap_state->r_overlay = NULL;
344 return ret;
345 }
346
347 omap_state->overlay = new_ovl;
348 if (new_r_hw_overlay)
349 omap_state->r_overlay = new_r_ovl;
350 else
351 omap_state->r_overlay = NULL;
352 }
353
354 DBG("plane: %s overlay_id: %d", plane->name, omap_state->overlay->id);
355
356 if (omap_state->r_overlay)
357 DBG("plane: %s r_overlay_id: %d", plane->name, omap_state->r_overlay->id);
358
359 return 0;
360}
361
362static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
363 .prepare_fb = omap_plane_prepare_fb,
364 .cleanup_fb = omap_plane_cleanup_fb,
365 .atomic_check = omap_plane_atomic_check,
366 .atomic_update = omap_plane_atomic_update,
367 .atomic_disable = omap_plane_atomic_disable,
368};
369
370static void omap_plane_destroy(struct drm_plane *plane)
371{
372 struct omap_plane *omap_plane = to_omap_plane(plane);
373
374 DBG("%s", plane->name);
375
376 drm_plane_cleanup(plane);
377
378 kfree(omap_plane);
379}
380
381/* helper to install properties which are common to planes and crtcs */
382void omap_plane_install_properties(struct drm_plane *plane,
383 struct drm_mode_object *obj)
384{
385 struct drm_device *dev = plane->dev;
386 struct omap_drm_private *priv = dev->dev_private;
387
388 if (priv->has_dmm) {
389 if (!plane->rotation_property)
390 drm_plane_create_rotation_property(plane,
391 DRM_MODE_ROTATE_0,
392 DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
393 DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
394 DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
395
396 /* Attach the rotation property also to the crtc object */
397 if (plane->rotation_property && obj != &plane->base)
398 drm_object_attach_property(obj, plane->rotation_property,
399 DRM_MODE_ROTATE_0);
400 }
401
402 drm_object_attach_property(obj, priv->zorder_prop, 0);
403}
404
405static void omap_plane_reset(struct drm_plane *plane)
406{
407 struct omap_plane_state *omap_state;
408
409 if (plane->state)
410 drm_atomic_helper_plane_destroy_state(plane, plane->state);
411
412 omap_state = kzalloc(sizeof(*omap_state), GFP_KERNEL);
413 if (!omap_state)
414 return;
415
416 __drm_atomic_helper_plane_reset(plane, &omap_state->base);
417}
418
419static struct drm_plane_state *
420omap_plane_atomic_duplicate_state(struct drm_plane *plane)
421{
422 struct omap_plane_state *state, *current_state;
423
424 if (WARN_ON(!plane->state))
425 return NULL;
426
427 current_state = to_omap_plane_state(plane->state);
428
429 state = kmalloc(sizeof(*state), GFP_KERNEL);
430 if (!state)
431 return NULL;
432
433 __drm_atomic_helper_plane_duplicate_state(plane, &state->base);
434
435 state->overlay = current_state->overlay;
436 state->r_overlay = current_state->r_overlay;
437
438 return &state->base;
439}
440
441static void omap_plane_atomic_print_state(struct drm_printer *p,
442 const struct drm_plane_state *state)
443{
444 struct omap_plane_state *omap_state = to_omap_plane_state(state);
445
446 if (omap_state->overlay)
447 drm_printf(p, "\toverlay=%s (caps=0x%x)\n",
448 omap_state->overlay->name,
449 omap_state->overlay->caps);
450 else
451 drm_printf(p, "\toverlay=None\n");
452 if (omap_state->r_overlay)
453 drm_printf(p, "\tr_overlay=%s (caps=0x%x)\n",
454 omap_state->r_overlay->name,
455 omap_state->r_overlay->caps);
456 else
457 drm_printf(p, "\tr_overlay=None\n");
458}
459
460static int omap_plane_atomic_set_property(struct drm_plane *plane,
461 struct drm_plane_state *state,
462 struct drm_property *property,
463 u64 val)
464{
465 struct omap_drm_private *priv = plane->dev->dev_private;
466
467 if (property == priv->zorder_prop)
468 state->zpos = val;
469 else
470 return -EINVAL;
471
472 return 0;
473}
474
475static int omap_plane_atomic_get_property(struct drm_plane *plane,
476 const struct drm_plane_state *state,
477 struct drm_property *property,
478 u64 *val)
479{
480 struct omap_drm_private *priv = plane->dev->dev_private;
481
482 if (property == priv->zorder_prop)
483 *val = state->zpos;
484 else
485 return -EINVAL;
486
487 return 0;
488}
489
490static const struct drm_plane_funcs omap_plane_funcs = {
491 .update_plane = drm_atomic_helper_update_plane,
492 .disable_plane = drm_atomic_helper_disable_plane,
493 .reset = omap_plane_reset,
494 .destroy = omap_plane_destroy,
495 .atomic_duplicate_state = omap_plane_atomic_duplicate_state,
496 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
497 .atomic_set_property = omap_plane_atomic_set_property,
498 .atomic_get_property = omap_plane_atomic_get_property,
499 .atomic_print_state = omap_plane_atomic_print_state,
500};
501
502static bool omap_plane_supports_yuv(struct drm_plane *plane)
503{
504 struct omap_drm_private *priv = plane->dev->dev_private;
505 struct omap_plane *omap_plane = to_omap_plane(plane);
506 const u32 *formats = dispc_ovl_get_color_modes(priv->dispc, omap_plane->id);
507 u32 i;
508
509 for (i = 0; formats[i]; i++)
510 if (formats[i] == DRM_FORMAT_YUYV ||
511 formats[i] == DRM_FORMAT_UYVY ||
512 formats[i] == DRM_FORMAT_NV12)
513 return true;
514
515 return false;
516}
517
518/* initialize plane */
519struct drm_plane *omap_plane_init(struct drm_device *dev,
520 int idx, enum drm_plane_type type,
521 u32 possible_crtcs)
522{
523 struct omap_drm_private *priv = dev->dev_private;
524 unsigned int num_planes = dispc_get_num_ovls(priv->dispc);
525 struct drm_plane *plane;
526 struct omap_plane *omap_plane;
527 unsigned int zpos;
528 int ret;
529 u32 nformats;
530 const u32 *formats;
531
532 if (WARN_ON(idx >= num_planes))
533 return ERR_PTR(-EINVAL);
534
535 omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
536 if (!omap_plane)
537 return ERR_PTR(-ENOMEM);
538
539 omap_plane->id = idx;
540
541 DBG("%d: type=%d", omap_plane->id, type);
542 DBG(" crtc_mask: 0x%04x", possible_crtcs);
543
544 formats = dispc_ovl_get_color_modes(priv->dispc, omap_plane->id);
545 for (nformats = 0; formats[nformats]; ++nformats)
546 ;
547
548 plane = &omap_plane->base;
549
550 ret = drm_universal_plane_init(dev, plane, possible_crtcs,
551 &omap_plane_funcs, formats,
552 nformats, NULL, type, NULL);
553 if (ret < 0)
554 goto error;
555
556 drm_plane_helper_add(plane, &omap_plane_helper_funcs);
557
558 omap_plane_install_properties(plane, &plane->base);
559
560 /*
561 * Set the zpos default depending on whether we are a primary or overlay
562 * plane.
563 */
564 if (plane->type == DRM_PLANE_TYPE_PRIMARY)
565 zpos = 0;
566 else
567 zpos = omap_plane->id;
568 drm_plane_create_zpos_property(plane, zpos, 0, num_planes - 1);
569 drm_plane_create_alpha_property(plane);
570 drm_plane_create_blend_mode_property(plane, BIT(DRM_MODE_BLEND_PREMULTI) |
571 BIT(DRM_MODE_BLEND_COVERAGE));
572
573 if (omap_plane_supports_yuv(plane))
574 drm_plane_create_color_properties(plane,
575 BIT(DRM_COLOR_YCBCR_BT601) |
576 BIT(DRM_COLOR_YCBCR_BT709),
577 BIT(DRM_COLOR_YCBCR_FULL_RANGE) |
578 BIT(DRM_COLOR_YCBCR_LIMITED_RANGE),
579 DRM_COLOR_YCBCR_BT601,
580 DRM_COLOR_YCBCR_FULL_RANGE);
581
582 return plane;
583
584error:
585 dev_err(dev->dev, "%s(): could not create plane: %d\n",
586 __func__, omap_plane->id);
587
588 kfree(omap_plane);
589 return NULL;
590}
1/*
2 * drivers/gpu/drm/omapdrm/omap_plane.c
3 *
4 * Copyright (C) 2011 Texas Instruments
5 * Author: Rob Clark <rob.clark@linaro.org>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include "drm_flip_work.h"
21
22#include "omap_drv.h"
23#include "omap_dmm_tiler.h"
24
25/* some hackery because omapdss has an 'enum omap_plane' (which would be
26 * better named omap_plane_id).. and compiler seems unhappy about having
27 * both a 'struct omap_plane' and 'enum omap_plane'
28 */
29#define omap_plane _omap_plane
30
31/*
32 * plane funcs
33 */
34
35struct callback {
36 void (*fxn)(void *);
37 void *arg;
38};
39
40#define to_omap_plane(x) container_of(x, struct omap_plane, base)
41
42struct omap_plane {
43 struct drm_plane base;
44 int id; /* TODO rename omap_plane -> omap_plane_id in omapdss so I can use the enum */
45 const char *name;
46 struct omap_overlay_info info;
47 struct omap_drm_apply apply;
48
49 /* position/orientation of scanout within the fb: */
50 struct omap_drm_window win;
51 bool enabled;
52
53 /* last fb that we pinned: */
54 struct drm_framebuffer *pinned_fb;
55
56 uint32_t nformats;
57 uint32_t formats[32];
58
59 struct omap_drm_irq error_irq;
60
61 /* for deferring bo unpin's until next post_apply(): */
62 struct drm_flip_work unpin_work;
63
64 // XXX maybe get rid of this and handle vblank in crtc too?
65 struct callback apply_done_cb;
66};
67
68static void unpin_worker(struct drm_flip_work *work, void *val)
69{
70 struct omap_plane *omap_plane =
71 container_of(work, struct omap_plane, unpin_work);
72 struct drm_device *dev = omap_plane->base.dev;
73
74 omap_framebuffer_unpin(val);
75 mutex_lock(&dev->mode_config.mutex);
76 drm_framebuffer_unreference(val);
77 mutex_unlock(&dev->mode_config.mutex);
78}
79
80/* update which fb (if any) is pinned for scanout */
81static int update_pin(struct drm_plane *plane, struct drm_framebuffer *fb)
82{
83 struct omap_plane *omap_plane = to_omap_plane(plane);
84 struct drm_framebuffer *pinned_fb = omap_plane->pinned_fb;
85
86 if (pinned_fb != fb) {
87 int ret = 0;
88
89 DBG("%p -> %p", pinned_fb, fb);
90
91 if (fb) {
92 drm_framebuffer_reference(fb);
93 ret = omap_framebuffer_pin(fb);
94 }
95
96 if (pinned_fb)
97 drm_flip_work_queue(&omap_plane->unpin_work, pinned_fb);
98
99 if (ret) {
100 dev_err(plane->dev->dev, "could not swap %p -> %p\n",
101 omap_plane->pinned_fb, fb);
102 drm_framebuffer_unreference(fb);
103 omap_plane->pinned_fb = NULL;
104 return ret;
105 }
106
107 omap_plane->pinned_fb = fb;
108 }
109
110 return 0;
111}
112
113static void omap_plane_pre_apply(struct omap_drm_apply *apply)
114{
115 struct omap_plane *omap_plane =
116 container_of(apply, struct omap_plane, apply);
117 struct omap_drm_window *win = &omap_plane->win;
118 struct drm_plane *plane = &omap_plane->base;
119 struct drm_device *dev = plane->dev;
120 struct omap_overlay_info *info = &omap_plane->info;
121 struct drm_crtc *crtc = plane->crtc;
122 enum omap_channel channel;
123 bool enabled = omap_plane->enabled && crtc;
124 bool ilace, replication;
125 int ret;
126
127 DBG("%s, enabled=%d", omap_plane->name, enabled);
128
129 /* if fb has changed, pin new fb: */
130 update_pin(plane, enabled ? plane->fb : NULL);
131
132 if (!enabled) {
133 dispc_ovl_enable(omap_plane->id, false);
134 return;
135 }
136
137 channel = omap_crtc_channel(crtc);
138
139 /* update scanout: */
140 omap_framebuffer_update_scanout(plane->fb, win, info);
141
142 DBG("%dx%d -> %dx%d (%d)", info->width, info->height,
143 info->out_width, info->out_height,
144 info->screen_width);
145 DBG("%d,%d %08x %08x", info->pos_x, info->pos_y,
146 info->paddr, info->p_uv_addr);
147
148 /* TODO: */
149 ilace = false;
150 replication = false;
151
152 /* and finally, update omapdss: */
153 ret = dispc_ovl_setup(omap_plane->id, info,
154 replication, omap_crtc_timings(crtc), false);
155 if (ret) {
156 dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret);
157 return;
158 }
159
160 dispc_ovl_enable(omap_plane->id, true);
161 dispc_ovl_set_channel_out(omap_plane->id, channel);
162}
163
164static void omap_plane_post_apply(struct omap_drm_apply *apply)
165{
166 struct omap_plane *omap_plane =
167 container_of(apply, struct omap_plane, apply);
168 struct drm_plane *plane = &omap_plane->base;
169 struct omap_drm_private *priv = plane->dev->dev_private;
170 struct omap_overlay_info *info = &omap_plane->info;
171 struct callback cb;
172
173 cb = omap_plane->apply_done_cb;
174 omap_plane->apply_done_cb.fxn = NULL;
175
176 drm_flip_work_commit(&omap_plane->unpin_work, priv->wq);
177
178 if (cb.fxn)
179 cb.fxn(cb.arg);
180
181 if (omap_plane->enabled) {
182 omap_framebuffer_flush(plane->fb, info->pos_x, info->pos_y,
183 info->out_width, info->out_height);
184 }
185}
186
187static int apply(struct drm_plane *plane)
188{
189 if (plane->crtc) {
190 struct omap_plane *omap_plane = to_omap_plane(plane);
191 return omap_crtc_apply(plane->crtc, &omap_plane->apply);
192 }
193 return 0;
194}
195
196int omap_plane_mode_set(struct drm_plane *plane,
197 struct drm_crtc *crtc, struct drm_framebuffer *fb,
198 int crtc_x, int crtc_y,
199 unsigned int crtc_w, unsigned int crtc_h,
200 uint32_t src_x, uint32_t src_y,
201 uint32_t src_w, uint32_t src_h,
202 void (*fxn)(void *), void *arg)
203{
204 struct omap_plane *omap_plane = to_omap_plane(plane);
205 struct omap_drm_window *win = &omap_plane->win;
206
207 win->crtc_x = crtc_x;
208 win->crtc_y = crtc_y;
209 win->crtc_w = crtc_w;
210 win->crtc_h = crtc_h;
211
212 /* src values are in Q16 fixed point, convert to integer: */
213 win->src_x = src_x >> 16;
214 win->src_y = src_y >> 16;
215 win->src_w = src_w >> 16;
216 win->src_h = src_h >> 16;
217
218 if (fxn) {
219 /* omap_crtc should ensure that a new page flip
220 * isn't permitted while there is one pending:
221 */
222 BUG_ON(omap_plane->apply_done_cb.fxn);
223
224 omap_plane->apply_done_cb.fxn = fxn;
225 omap_plane->apply_done_cb.arg = arg;
226 }
227
228 if (plane->fb)
229 drm_framebuffer_unreference(plane->fb);
230
231 drm_framebuffer_reference(fb);
232
233 plane->fb = fb;
234 plane->crtc = crtc;
235
236 return apply(plane);
237}
238
239static int omap_plane_update(struct drm_plane *plane,
240 struct drm_crtc *crtc, struct drm_framebuffer *fb,
241 int crtc_x, int crtc_y,
242 unsigned int crtc_w, unsigned int crtc_h,
243 uint32_t src_x, uint32_t src_y,
244 uint32_t src_w, uint32_t src_h)
245{
246 struct omap_plane *omap_plane = to_omap_plane(plane);
247 omap_plane->enabled = true;
248
249 /* omap_plane_mode_set() takes adjusted src */
250 switch (omap_plane->win.rotation & 0xf) {
251 case BIT(DRM_ROTATE_90):
252 case BIT(DRM_ROTATE_270):
253 swap(src_w, src_h);
254 break;
255 }
256
257 return omap_plane_mode_set(plane, crtc, fb,
258 crtc_x, crtc_y, crtc_w, crtc_h,
259 src_x, src_y, src_w, src_h,
260 NULL, NULL);
261}
262
263static int omap_plane_disable(struct drm_plane *plane)
264{
265 struct omap_plane *omap_plane = to_omap_plane(plane);
266 omap_plane->win.rotation = BIT(DRM_ROTATE_0);
267 return omap_plane_dpms(plane, DRM_MODE_DPMS_OFF);
268}
269
270static void omap_plane_destroy(struct drm_plane *plane)
271{
272 struct omap_plane *omap_plane = to_omap_plane(plane);
273
274 DBG("%s", omap_plane->name);
275
276 omap_irq_unregister(plane->dev, &omap_plane->error_irq);
277
278 omap_plane_disable(plane);
279 drm_plane_cleanup(plane);
280
281 drm_flip_work_cleanup(&omap_plane->unpin_work);
282
283 kfree(omap_plane);
284}
285
286int omap_plane_dpms(struct drm_plane *plane, int mode)
287{
288 struct omap_plane *omap_plane = to_omap_plane(plane);
289 bool enabled = (mode == DRM_MODE_DPMS_ON);
290 int ret = 0;
291
292 if (enabled != omap_plane->enabled) {
293 omap_plane->enabled = enabled;
294 ret = apply(plane);
295 }
296
297 return ret;
298}
299
300/* helper to install properties which are common to planes and crtcs */
301void omap_plane_install_properties(struct drm_plane *plane,
302 struct drm_mode_object *obj)
303{
304 struct drm_device *dev = plane->dev;
305 struct omap_drm_private *priv = dev->dev_private;
306 struct drm_property *prop;
307
308 if (priv->has_dmm) {
309 prop = priv->rotation_prop;
310 if (!prop) {
311 const struct drm_prop_enum_list props[] = {
312 { DRM_ROTATE_0, "rotate-0" },
313 { DRM_ROTATE_90, "rotate-90" },
314 { DRM_ROTATE_180, "rotate-180" },
315 { DRM_ROTATE_270, "rotate-270" },
316 { DRM_REFLECT_X, "reflect-x" },
317 { DRM_REFLECT_Y, "reflect-y" },
318 };
319 prop = drm_property_create_bitmask(dev, 0, "rotation",
320 props, ARRAY_SIZE(props));
321 if (prop == NULL)
322 return;
323 priv->rotation_prop = prop;
324 }
325 drm_object_attach_property(obj, prop, 0);
326 }
327
328 prop = priv->zorder_prop;
329 if (!prop) {
330 prop = drm_property_create_range(dev, 0, "zorder", 0, 3);
331 if (prop == NULL)
332 return;
333 priv->zorder_prop = prop;
334 }
335 drm_object_attach_property(obj, prop, 0);
336}
337
338int omap_plane_set_property(struct drm_plane *plane,
339 struct drm_property *property, uint64_t val)
340{
341 struct omap_plane *omap_plane = to_omap_plane(plane);
342 struct omap_drm_private *priv = plane->dev->dev_private;
343 int ret = -EINVAL;
344
345 if (property == priv->rotation_prop) {
346 DBG("%s: rotation: %02x", omap_plane->name, (uint32_t)val);
347 omap_plane->win.rotation = val;
348 ret = apply(plane);
349 } else if (property == priv->zorder_prop) {
350 DBG("%s: zorder: %02x", omap_plane->name, (uint32_t)val);
351 omap_plane->info.zorder = val;
352 ret = apply(plane);
353 }
354
355 return ret;
356}
357
358static const struct drm_plane_funcs omap_plane_funcs = {
359 .update_plane = omap_plane_update,
360 .disable_plane = omap_plane_disable,
361 .destroy = omap_plane_destroy,
362 .set_property = omap_plane_set_property,
363};
364
365static void omap_plane_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
366{
367 struct omap_plane *omap_plane =
368 container_of(irq, struct omap_plane, error_irq);
369 DRM_ERROR("%s: errors: %08x\n", omap_plane->name, irqstatus);
370}
371
372static const char *plane_names[] = {
373 [OMAP_DSS_GFX] = "gfx",
374 [OMAP_DSS_VIDEO1] = "vid1",
375 [OMAP_DSS_VIDEO2] = "vid2",
376 [OMAP_DSS_VIDEO3] = "vid3",
377};
378
379static const uint32_t error_irqs[] = {
380 [OMAP_DSS_GFX] = DISPC_IRQ_GFX_FIFO_UNDERFLOW,
381 [OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_FIFO_UNDERFLOW,
382 [OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_FIFO_UNDERFLOW,
383 [OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_FIFO_UNDERFLOW,
384};
385
386/* initialize plane */
387struct drm_plane *omap_plane_init(struct drm_device *dev,
388 int id, bool private_plane)
389{
390 struct omap_drm_private *priv = dev->dev_private;
391 struct drm_plane *plane = NULL;
392 struct omap_plane *omap_plane;
393 struct omap_overlay_info *info;
394 int ret;
395
396 DBG("%s: priv=%d", plane_names[id], private_plane);
397
398 omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
399 if (!omap_plane)
400 goto fail;
401
402 ret = drm_flip_work_init(&omap_plane->unpin_work, 16,
403 "unpin", unpin_worker);
404 if (ret) {
405 dev_err(dev->dev, "could not allocate unpin FIFO\n");
406 goto fail;
407 }
408
409 omap_plane->nformats = omap_framebuffer_get_formats(
410 omap_plane->formats, ARRAY_SIZE(omap_plane->formats),
411 dss_feat_get_supported_color_modes(id));
412 omap_plane->id = id;
413 omap_plane->name = plane_names[id];
414
415 plane = &omap_plane->base;
416
417 omap_plane->apply.pre_apply = omap_plane_pre_apply;
418 omap_plane->apply.post_apply = omap_plane_post_apply;
419
420 omap_plane->error_irq.irqmask = error_irqs[id];
421 omap_plane->error_irq.irq = omap_plane_error_irq;
422 omap_irq_register(dev, &omap_plane->error_irq);
423
424 drm_plane_init(dev, plane, (1 << priv->num_crtcs) - 1, &omap_plane_funcs,
425 omap_plane->formats, omap_plane->nformats, private_plane);
426
427 omap_plane_install_properties(plane, &plane->base);
428
429 /* get our starting configuration, set defaults for parameters
430 * we don't currently use, etc:
431 */
432 info = &omap_plane->info;
433 info->rotation_type = OMAP_DSS_ROT_DMA;
434 info->rotation = OMAP_DSS_ROT_0;
435 info->global_alpha = 0xff;
436 info->mirror = 0;
437
438 /* Set defaults depending on whether we are a CRTC or overlay
439 * layer.
440 * TODO add ioctl to give userspace an API to change this.. this
441 * will come in a subsequent patch.
442 */
443 if (private_plane)
444 omap_plane->info.zorder = 0;
445 else
446 omap_plane->info.zorder = id;
447
448 return plane;
449
450fail:
451 if (plane)
452 omap_plane_destroy(plane);
453
454 return NULL;
455}