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16#include <drm/drmP.h>
17#include <drm/drm_atomic.h>
18#include <drm/drm_atomic_helper.h>
19#include <drm/drm_fb_cma_helper.h>
20#include <drm/drm_gem_cma_helper.h>
21#include <drm/drm_plane_helper.h>
22
23#include "video/imx-ipu-v3.h"
24#include "ipuv3-plane.h"
25
26struct ipu_plane_state {
27 struct drm_plane_state base;
28 bool use_pre;
29};
30
31static inline struct ipu_plane_state *
32to_ipu_plane_state(struct drm_plane_state *p)
33{
34 return container_of(p, struct ipu_plane_state, base);
35}
36
37static inline struct ipu_plane *to_ipu_plane(struct drm_plane *p)
38{
39 return container_of(p, struct ipu_plane, base);
40}
41
42static const uint32_t ipu_plane_formats[] = {
43 DRM_FORMAT_ARGB1555,
44 DRM_FORMAT_XRGB1555,
45 DRM_FORMAT_ABGR1555,
46 DRM_FORMAT_XBGR1555,
47 DRM_FORMAT_RGBA5551,
48 DRM_FORMAT_BGRA5551,
49 DRM_FORMAT_ARGB4444,
50 DRM_FORMAT_ARGB8888,
51 DRM_FORMAT_XRGB8888,
52 DRM_FORMAT_ABGR8888,
53 DRM_FORMAT_XBGR8888,
54 DRM_FORMAT_RGBA8888,
55 DRM_FORMAT_RGBX8888,
56 DRM_FORMAT_BGRA8888,
57 DRM_FORMAT_BGRX8888,
58 DRM_FORMAT_UYVY,
59 DRM_FORMAT_VYUY,
60 DRM_FORMAT_YUYV,
61 DRM_FORMAT_YVYU,
62 DRM_FORMAT_YUV420,
63 DRM_FORMAT_YVU420,
64 DRM_FORMAT_YUV422,
65 DRM_FORMAT_YVU422,
66 DRM_FORMAT_YUV444,
67 DRM_FORMAT_YVU444,
68 DRM_FORMAT_NV12,
69 DRM_FORMAT_NV16,
70 DRM_FORMAT_RGB565,
71 DRM_FORMAT_RGB565_A8,
72 DRM_FORMAT_BGR565_A8,
73 DRM_FORMAT_RGB888_A8,
74 DRM_FORMAT_BGR888_A8,
75 DRM_FORMAT_RGBX8888_A8,
76 DRM_FORMAT_BGRX8888_A8,
77};
78
79int ipu_plane_irq(struct ipu_plane *ipu_plane)
80{
81 return ipu_idmac_channel_irq(ipu_plane->ipu, ipu_plane->ipu_ch,
82 IPU_IRQ_EOF);
83}
84
85static inline unsigned long
86drm_plane_state_to_eba(struct drm_plane_state *state, int plane)
87{
88 struct drm_framebuffer *fb = state->fb;
89 struct drm_gem_cma_object *cma_obj;
90 int x = state->src.x1 >> 16;
91 int y = state->src.y1 >> 16;
92
93 cma_obj = drm_fb_cma_get_gem_obj(fb, plane);
94 BUG_ON(!cma_obj);
95
96 return cma_obj->paddr + fb->offsets[plane] + fb->pitches[plane] * y +
97 fb->format->cpp[plane] * x;
98}
99
100static inline unsigned long
101drm_plane_state_to_ubo(struct drm_plane_state *state)
102{
103 struct drm_framebuffer *fb = state->fb;
104 struct drm_gem_cma_object *cma_obj;
105 unsigned long eba = drm_plane_state_to_eba(state, 0);
106 int x = state->src.x1 >> 16;
107 int y = state->src.y1 >> 16;
108
109 cma_obj = drm_fb_cma_get_gem_obj(fb, 1);
110 BUG_ON(!cma_obj);
111
112 x /= drm_format_horz_chroma_subsampling(fb->format->format);
113 y /= drm_format_vert_chroma_subsampling(fb->format->format);
114
115 return cma_obj->paddr + fb->offsets[1] + fb->pitches[1] * y +
116 fb->format->cpp[1] * x - eba;
117}
118
119static inline unsigned long
120drm_plane_state_to_vbo(struct drm_plane_state *state)
121{
122 struct drm_framebuffer *fb = state->fb;
123 struct drm_gem_cma_object *cma_obj;
124 unsigned long eba = drm_plane_state_to_eba(state, 0);
125 int x = state->src.x1 >> 16;
126 int y = state->src.y1 >> 16;
127
128 cma_obj = drm_fb_cma_get_gem_obj(fb, 2);
129 BUG_ON(!cma_obj);
130
131 x /= drm_format_horz_chroma_subsampling(fb->format->format);
132 y /= drm_format_vert_chroma_subsampling(fb->format->format);
133
134 return cma_obj->paddr + fb->offsets[2] + fb->pitches[2] * y +
135 fb->format->cpp[2] * x - eba;
136}
137
138void ipu_plane_put_resources(struct ipu_plane *ipu_plane)
139{
140 if (!IS_ERR_OR_NULL(ipu_plane->dp))
141 ipu_dp_put(ipu_plane->dp);
142 if (!IS_ERR_OR_NULL(ipu_plane->dmfc))
143 ipu_dmfc_put(ipu_plane->dmfc);
144 if (!IS_ERR_OR_NULL(ipu_plane->ipu_ch))
145 ipu_idmac_put(ipu_plane->ipu_ch);
146 if (!IS_ERR_OR_NULL(ipu_plane->alpha_ch))
147 ipu_idmac_put(ipu_plane->alpha_ch);
148}
149
150int ipu_plane_get_resources(struct ipu_plane *ipu_plane)
151{
152 int ret;
153 int alpha_ch;
154
155 ipu_plane->ipu_ch = ipu_idmac_get(ipu_plane->ipu, ipu_plane->dma);
156 if (IS_ERR(ipu_plane->ipu_ch)) {
157 ret = PTR_ERR(ipu_plane->ipu_ch);
158 DRM_ERROR("failed to get idmac channel: %d\n", ret);
159 return ret;
160 }
161
162 alpha_ch = ipu_channel_alpha_channel(ipu_plane->dma);
163 if (alpha_ch >= 0) {
164 ipu_plane->alpha_ch = ipu_idmac_get(ipu_plane->ipu, alpha_ch);
165 if (IS_ERR(ipu_plane->alpha_ch)) {
166 ret = PTR_ERR(ipu_plane->alpha_ch);
167 DRM_ERROR("failed to get alpha idmac channel %d: %d\n",
168 alpha_ch, ret);
169 return ret;
170 }
171 }
172
173 ipu_plane->dmfc = ipu_dmfc_get(ipu_plane->ipu, ipu_plane->dma);
174 if (IS_ERR(ipu_plane->dmfc)) {
175 ret = PTR_ERR(ipu_plane->dmfc);
176 DRM_ERROR("failed to get dmfc: ret %d\n", ret);
177 goto err_out;
178 }
179
180 if (ipu_plane->dp_flow >= 0) {
181 ipu_plane->dp = ipu_dp_get(ipu_plane->ipu, ipu_plane->dp_flow);
182 if (IS_ERR(ipu_plane->dp)) {
183 ret = PTR_ERR(ipu_plane->dp);
184 DRM_ERROR("failed to get dp flow: %d\n", ret);
185 goto err_out;
186 }
187 }
188
189 return 0;
190err_out:
191 ipu_plane_put_resources(ipu_plane);
192
193 return ret;
194}
195
196static bool ipu_plane_separate_alpha(struct ipu_plane *ipu_plane)
197{
198 switch (ipu_plane->base.state->fb->format->format) {
199 case DRM_FORMAT_RGB565_A8:
200 case DRM_FORMAT_BGR565_A8:
201 case DRM_FORMAT_RGB888_A8:
202 case DRM_FORMAT_BGR888_A8:
203 case DRM_FORMAT_RGBX8888_A8:
204 case DRM_FORMAT_BGRX8888_A8:
205 return true;
206 default:
207 return false;
208 }
209}
210
211static void ipu_plane_enable(struct ipu_plane *ipu_plane)
212{
213 if (ipu_plane->dp)
214 ipu_dp_enable(ipu_plane->ipu);
215 ipu_dmfc_enable_channel(ipu_plane->dmfc);
216 ipu_idmac_enable_channel(ipu_plane->ipu_ch);
217 if (ipu_plane_separate_alpha(ipu_plane))
218 ipu_idmac_enable_channel(ipu_plane->alpha_ch);
219 if (ipu_plane->dp)
220 ipu_dp_enable_channel(ipu_plane->dp);
221}
222
223void ipu_plane_disable(struct ipu_plane *ipu_plane, bool disable_dp_channel)
224{
225 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
226
227 ipu_idmac_wait_busy(ipu_plane->ipu_ch, 50);
228
229 if (ipu_plane->dp && disable_dp_channel)
230 ipu_dp_disable_channel(ipu_plane->dp, false);
231 ipu_idmac_disable_channel(ipu_plane->ipu_ch);
232 if (ipu_plane->alpha_ch)
233 ipu_idmac_disable_channel(ipu_plane->alpha_ch);
234 ipu_dmfc_disable_channel(ipu_plane->dmfc);
235 if (ipu_plane->dp)
236 ipu_dp_disable(ipu_plane->ipu);
237 if (ipu_prg_present(ipu_plane->ipu))
238 ipu_prg_channel_disable(ipu_plane->ipu_ch);
239}
240
241void ipu_plane_disable_deferred(struct drm_plane *plane)
242{
243 struct ipu_plane *ipu_plane = to_ipu_plane(plane);
244
245 if (ipu_plane->disabling) {
246 ipu_plane->disabling = false;
247 ipu_plane_disable(ipu_plane, false);
248 }
249}
250EXPORT_SYMBOL_GPL(ipu_plane_disable_deferred);
251
252static void ipu_plane_destroy(struct drm_plane *plane)
253{
254 struct ipu_plane *ipu_plane = to_ipu_plane(plane);
255
256 DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
257
258 drm_plane_cleanup(plane);
259 kfree(ipu_plane);
260}
261
262void ipu_plane_state_reset(struct drm_plane *plane)
263{
264 struct ipu_plane_state *ipu_state;
265
266 if (plane->state) {
267 ipu_state = to_ipu_plane_state(plane->state);
268 __drm_atomic_helper_plane_destroy_state(plane->state);
269 kfree(ipu_state);
270 }
271
272 ipu_state = kzalloc(sizeof(*ipu_state), GFP_KERNEL);
273
274 if (ipu_state) {
275 ipu_state->base.plane = plane;
276 ipu_state->base.rotation = DRM_MODE_ROTATE_0;
277 }
278
279 plane->state = &ipu_state->base;
280}
281
282struct drm_plane_state *ipu_plane_duplicate_state(struct drm_plane *plane)
283{
284 struct ipu_plane_state *state;
285
286 if (WARN_ON(!plane->state))
287 return NULL;
288
289 state = kmalloc(sizeof(*state), GFP_KERNEL);
290 if (state)
291 __drm_atomic_helper_plane_duplicate_state(plane, &state->base);
292
293 return &state->base;
294}
295
296void ipu_plane_destroy_state(struct drm_plane *plane,
297 struct drm_plane_state *state)
298{
299 struct ipu_plane_state *ipu_state = to_ipu_plane_state(state);
300
301 __drm_atomic_helper_plane_destroy_state(state);
302 kfree(ipu_state);
303}
304
305static const struct drm_plane_funcs ipu_plane_funcs = {
306 .update_plane = drm_atomic_helper_update_plane,
307 .disable_plane = drm_atomic_helper_disable_plane,
308 .destroy = ipu_plane_destroy,
309 .reset = ipu_plane_state_reset,
310 .atomic_duplicate_state = ipu_plane_duplicate_state,
311 .atomic_destroy_state = ipu_plane_destroy_state,
312};
313
314static int ipu_plane_atomic_check(struct drm_plane *plane,
315 struct drm_plane_state *state)
316{
317 struct drm_plane_state *old_state = plane->state;
318 struct drm_crtc_state *crtc_state;
319 struct device *dev = plane->dev->dev;
320 struct drm_framebuffer *fb = state->fb;
321 struct drm_framebuffer *old_fb = old_state->fb;
322 unsigned long eba, ubo, vbo, old_ubo, old_vbo, alpha_eba;
323 bool can_position = (plane->type == DRM_PLANE_TYPE_OVERLAY);
324 struct drm_rect clip;
325 int hsub, vsub;
326 int ret;
327
328
329 if (!fb)
330 return 0;
331
332 if (!state->crtc)
333 return -EINVAL;
334
335 crtc_state =
336 drm_atomic_get_existing_crtc_state(state->state, state->crtc);
337 if (WARN_ON(!crtc_state))
338 return -EINVAL;
339
340 clip.x1 = 0;
341 clip.y1 = 0;
342 clip.x2 = crtc_state->adjusted_mode.hdisplay;
343 clip.y2 = crtc_state->adjusted_mode.vdisplay;
344 ret = drm_plane_helper_check_state(state, &clip,
345 DRM_PLANE_HELPER_NO_SCALING,
346 DRM_PLANE_HELPER_NO_SCALING,
347 can_position, true);
348 if (ret)
349 return ret;
350
351
352 if (!crtc_state->enable)
353 return -EINVAL;
354
355 switch (plane->type) {
356 case DRM_PLANE_TYPE_PRIMARY:
357
358 if (drm_rect_width(&state->dst) < 13)
359 return -EINVAL;
360 break;
361 case DRM_PLANE_TYPE_OVERLAY:
362 break;
363 default:
364 dev_warn(dev, "Unsupported plane type %d\n", plane->type);
365 return -EINVAL;
366 }
367
368 if (drm_rect_height(&state->dst) < 2)
369 return -EINVAL;
370
371
372
373
374
375
376
377
378 if (old_fb &&
379 (drm_rect_width(&state->dst) != drm_rect_width(&old_state->dst) ||
380 drm_rect_height(&state->dst) != drm_rect_height(&old_state->dst) ||
381 fb->format != old_fb->format))
382 crtc_state->mode_changed = true;
383
384 eba = drm_plane_state_to_eba(state, 0);
385
386 if (eba & 0x7)
387 return -EINVAL;
388
389 if (fb->pitches[0] < 1 || fb->pitches[0] > 16384)
390 return -EINVAL;
391
392 if (old_fb && fb->pitches[0] != old_fb->pitches[0])
393 crtc_state->mode_changed = true;
394
395 switch (fb->format->format) {
396 case DRM_FORMAT_YUV420:
397 case DRM_FORMAT_YVU420:
398 case DRM_FORMAT_YUV422:
399 case DRM_FORMAT_YVU422:
400 case DRM_FORMAT_YUV444:
401 case DRM_FORMAT_YVU444:
402
403
404
405
406
407
408
409
410 vbo = drm_plane_state_to_vbo(state);
411
412 if (vbo & 0x7 || vbo > 0xfffff8)
413 return -EINVAL;
414
415 if (old_fb && (fb->format == old_fb->format)) {
416 old_vbo = drm_plane_state_to_vbo(old_state);
417 if (vbo != old_vbo)
418 crtc_state->mode_changed = true;
419 }
420
421 if (fb->pitches[1] != fb->pitches[2])
422 return -EINVAL;
423
424
425 case DRM_FORMAT_NV12:
426 case DRM_FORMAT_NV16:
427 ubo = drm_plane_state_to_ubo(state);
428
429 if (ubo & 0x7 || ubo > 0xfffff8)
430 return -EINVAL;
431
432 if (old_fb && (fb->format == old_fb->format)) {
433 old_ubo = drm_plane_state_to_ubo(old_state);
434 if (ubo != old_ubo)
435 crtc_state->mode_changed = true;
436 }
437
438 if (fb->pitches[1] < 1 || fb->pitches[1] > 16384)
439 return -EINVAL;
440
441 if (old_fb && old_fb->pitches[1] != fb->pitches[1])
442 crtc_state->mode_changed = true;
443
444
445
446
447
448 hsub = drm_format_horz_chroma_subsampling(fb->format->format);
449 vsub = drm_format_vert_chroma_subsampling(fb->format->format);
450 if (((state->src.x1 >> 16) & (hsub - 1)) ||
451 ((state->src.y1 >> 16) & (vsub - 1)))
452 return -EINVAL;
453 break;
454 case DRM_FORMAT_RGB565_A8:
455 case DRM_FORMAT_BGR565_A8:
456 case DRM_FORMAT_RGB888_A8:
457 case DRM_FORMAT_BGR888_A8:
458 case DRM_FORMAT_RGBX8888_A8:
459 case DRM_FORMAT_BGRX8888_A8:
460 alpha_eba = drm_plane_state_to_eba(state, 1);
461 if (alpha_eba & 0x7)
462 return -EINVAL;
463
464 if (fb->pitches[1] < 1 || fb->pitches[1] > 16384)
465 return -EINVAL;
466
467 if (old_fb && old_fb->pitches[1] != fb->pitches[1])
468 crtc_state->mode_changed = true;
469 break;
470 }
471
472 return 0;
473}
474
475static void ipu_plane_atomic_disable(struct drm_plane *plane,
476 struct drm_plane_state *old_state)
477{
478 struct ipu_plane *ipu_plane = to_ipu_plane(plane);
479
480 if (ipu_plane->dp)
481 ipu_dp_disable_channel(ipu_plane->dp, true);
482 ipu_plane->disabling = true;
483}
484
485static int ipu_chan_assign_axi_id(int ipu_chan)
486{
487 switch (ipu_chan) {
488 case IPUV3_CHANNEL_MEM_BG_SYNC:
489 return 1;
490 case IPUV3_CHANNEL_MEM_FG_SYNC:
491 return 2;
492 case IPUV3_CHANNEL_MEM_DC_SYNC:
493 return 3;
494 default:
495 return 0;
496 }
497}
498
499static void ipu_plane_atomic_update(struct drm_plane *plane,
500 struct drm_plane_state *old_state)
501{
502 struct ipu_plane *ipu_plane = to_ipu_plane(plane);
503 struct drm_plane_state *state = plane->state;
504 struct ipu_plane_state *ipu_state = to_ipu_plane_state(state);
505 struct drm_crtc_state *crtc_state = state->crtc->state;
506 struct drm_framebuffer *fb = state->fb;
507 struct drm_rect *dst = &state->dst;
508 unsigned long eba, ubo, vbo;
509 unsigned long alpha_eba = 0;
510 enum ipu_color_space ics;
511 unsigned int axi_id = 0;
512 int active;
513
514 if (ipu_plane->dp_flow == IPU_DP_FLOW_SYNC_FG)
515 ipu_dp_set_window_pos(ipu_plane->dp, dst->x1, dst->y1);
516
517 eba = drm_plane_state_to_eba(state, 0);
518
519
520
521
522
523 if (ipu_state->use_pre) {
524 axi_id = ipu_chan_assign_axi_id(ipu_plane->dma);
525 ipu_prg_channel_configure(ipu_plane->ipu_ch, axi_id,
526 drm_rect_width(&state->src) >> 16,
527 drm_rect_height(&state->src) >> 16,
528 state->fb->pitches[0],
529 state->fb->format->format, &eba);
530 }
531
532 if (old_state->fb && !drm_atomic_crtc_needs_modeset(crtc_state)) {
533
534 if (ipu_state->use_pre)
535 return;
536 active = ipu_idmac_get_current_buffer(ipu_plane->ipu_ch);
537 ipu_cpmem_set_buffer(ipu_plane->ipu_ch, !active, eba);
538 ipu_idmac_select_buffer(ipu_plane->ipu_ch, !active);
539 if (ipu_plane_separate_alpha(ipu_plane)) {
540 active = ipu_idmac_get_current_buffer(ipu_plane->alpha_ch);
541 ipu_cpmem_set_buffer(ipu_plane->alpha_ch, !active,
542 alpha_eba);
543 ipu_idmac_select_buffer(ipu_plane->alpha_ch, !active);
544 }
545 return;
546 }
547
548 ics = ipu_drm_fourcc_to_colorspace(fb->format->format);
549 switch (ipu_plane->dp_flow) {
550 case IPU_DP_FLOW_SYNC_BG:
551 ipu_dp_setup_channel(ipu_plane->dp, ics, IPUV3_COLORSPACE_RGB);
552 ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);
553 break;
554 case IPU_DP_FLOW_SYNC_FG:
555 ipu_dp_setup_channel(ipu_plane->dp, ics,
556 IPUV3_COLORSPACE_UNKNOWN);
557
558 switch (state->fb->format->format) {
559 case DRM_FORMAT_ARGB1555:
560 case DRM_FORMAT_ABGR1555:
561 case DRM_FORMAT_RGBA5551:
562 case DRM_FORMAT_BGRA5551:
563 case DRM_FORMAT_ARGB4444:
564 case DRM_FORMAT_ARGB8888:
565 case DRM_FORMAT_ABGR8888:
566 case DRM_FORMAT_RGBA8888:
567 case DRM_FORMAT_BGRA8888:
568 case DRM_FORMAT_RGB565_A8:
569 case DRM_FORMAT_BGR565_A8:
570 case DRM_FORMAT_RGB888_A8:
571 case DRM_FORMAT_BGR888_A8:
572 case DRM_FORMAT_RGBX8888_A8:
573 case DRM_FORMAT_BGRX8888_A8:
574 ipu_dp_set_global_alpha(ipu_plane->dp, false, 0, false);
575 break;
576 default:
577 ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);
578 break;
579 }
580 }
581
582 ipu_dmfc_config_wait4eot(ipu_plane->dmfc, drm_rect_width(dst));
583
584 ipu_cpmem_zero(ipu_plane->ipu_ch);
585 ipu_cpmem_set_resolution(ipu_plane->ipu_ch,
586 drm_rect_width(&state->src) >> 16,
587 drm_rect_height(&state->src) >> 16);
588 ipu_cpmem_set_fmt(ipu_plane->ipu_ch, state->fb->format->format);
589 ipu_cpmem_set_high_priority(ipu_plane->ipu_ch);
590 ipu_idmac_set_double_buffer(ipu_plane->ipu_ch, 1);
591 ipu_cpmem_set_stride(ipu_plane->ipu_ch, state->fb->pitches[0]);
592 ipu_cpmem_set_axi_id(ipu_plane->ipu_ch, axi_id);
593 switch (fb->format->format) {
594 case DRM_FORMAT_YUV420:
595 case DRM_FORMAT_YVU420:
596 case DRM_FORMAT_YUV422:
597 case DRM_FORMAT_YVU422:
598 case DRM_FORMAT_YUV444:
599 case DRM_FORMAT_YVU444:
600 ubo = drm_plane_state_to_ubo(state);
601 vbo = drm_plane_state_to_vbo(state);
602 if (fb->format->format == DRM_FORMAT_YVU420 ||
603 fb->format->format == DRM_FORMAT_YVU422 ||
604 fb->format->format == DRM_FORMAT_YVU444)
605 swap(ubo, vbo);
606
607 ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch,
608 fb->pitches[1], ubo, vbo);
609
610 dev_dbg(ipu_plane->base.dev->dev,
611 "phy = %lu %lu %lu, x = %d, y = %d", eba, ubo, vbo,
612 state->src.x1 >> 16, state->src.y1 >> 16);
613 break;
614 case DRM_FORMAT_NV12:
615 case DRM_FORMAT_NV16:
616 ubo = drm_plane_state_to_ubo(state);
617
618 ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch,
619 fb->pitches[1], ubo, ubo);
620
621 dev_dbg(ipu_plane->base.dev->dev,
622 "phy = %lu %lu, x = %d, y = %d", eba, ubo,
623 state->src.x1 >> 16, state->src.y1 >> 16);
624 break;
625 case DRM_FORMAT_RGB565_A8:
626 case DRM_FORMAT_BGR565_A8:
627 case DRM_FORMAT_RGB888_A8:
628 case DRM_FORMAT_BGR888_A8:
629 case DRM_FORMAT_RGBX8888_A8:
630 case DRM_FORMAT_BGRX8888_A8:
631 alpha_eba = drm_plane_state_to_eba(state, 1);
632
633 dev_dbg(ipu_plane->base.dev->dev, "phys = %lu %lu, x = %d, y = %d",
634 eba, alpha_eba, state->src.x1 >> 16, state->src.y1 >> 16);
635
636 ipu_cpmem_set_burstsize(ipu_plane->ipu_ch, 16);
637
638 ipu_cpmem_zero(ipu_plane->alpha_ch);
639 ipu_cpmem_set_resolution(ipu_plane->alpha_ch,
640 drm_rect_width(&state->src) >> 16,
641 drm_rect_height(&state->src) >> 16);
642 ipu_cpmem_set_format_passthrough(ipu_plane->alpha_ch, 8);
643 ipu_cpmem_set_high_priority(ipu_plane->alpha_ch);
644 ipu_idmac_set_double_buffer(ipu_plane->alpha_ch, 1);
645 ipu_cpmem_set_stride(ipu_plane->alpha_ch,
646 state->fb->pitches[1]);
647 ipu_cpmem_set_burstsize(ipu_plane->alpha_ch, 16);
648 ipu_cpmem_set_buffer(ipu_plane->alpha_ch, 0, alpha_eba);
649 ipu_cpmem_set_buffer(ipu_plane->alpha_ch, 1, alpha_eba);
650 break;
651 default:
652 dev_dbg(ipu_plane->base.dev->dev, "phys = %lu, x = %d, y = %d",
653 eba, state->src.x1 >> 16, state->src.y1 >> 16);
654 break;
655 }
656 ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 0, eba);
657 ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 1, eba);
658 ipu_plane_enable(ipu_plane);
659}
660
661static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
662 .prepare_fb = drm_fb_cma_prepare_fb,
663 .atomic_check = ipu_plane_atomic_check,
664 .atomic_disable = ipu_plane_atomic_disable,
665 .atomic_update = ipu_plane_atomic_update,
666};
667
668int ipu_planes_assign_pre(struct drm_device *dev,
669 struct drm_atomic_state *state)
670{
671 struct drm_plane_state *plane_state;
672 struct drm_plane *plane;
673 int available_pres = ipu_prg_max_active_channels();
674 int i;
675
676 for_each_plane_in_state(state, plane, plane_state, i) {
677 struct ipu_plane_state *ipu_state =
678 to_ipu_plane_state(plane_state);
679 struct ipu_plane *ipu_plane = to_ipu_plane(plane);
680
681 if (ipu_prg_present(ipu_plane->ipu) && available_pres &&
682 plane_state->fb &&
683 ipu_prg_format_supported(ipu_plane->ipu,
684 plane_state->fb->format->format,
685 plane_state->fb->modifier)) {
686 ipu_state->use_pre = true;
687 available_pres--;
688 } else {
689 ipu_state->use_pre = false;
690 }
691 }
692
693 return 0;
694}
695EXPORT_SYMBOL_GPL(ipu_planes_assign_pre);
696
697struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
698 int dma, int dp, unsigned int possible_crtcs,
699 enum drm_plane_type type)
700{
701 struct ipu_plane *ipu_plane;
702 int ret;
703
704 DRM_DEBUG_KMS("channel %d, dp flow %d, possible_crtcs=0x%x\n",
705 dma, dp, possible_crtcs);
706
707 ipu_plane = kzalloc(sizeof(*ipu_plane), GFP_KERNEL);
708 if (!ipu_plane) {
709 DRM_ERROR("failed to allocate plane\n");
710 return ERR_PTR(-ENOMEM);
711 }
712
713 ipu_plane->ipu = ipu;
714 ipu_plane->dma = dma;
715 ipu_plane->dp_flow = dp;
716
717 ret = drm_universal_plane_init(dev, &ipu_plane->base, possible_crtcs,
718 &ipu_plane_funcs, ipu_plane_formats,
719 ARRAY_SIZE(ipu_plane_formats), type,
720 NULL);
721 if (ret) {
722 DRM_ERROR("failed to initialize plane\n");
723 kfree(ipu_plane);
724 return ERR_PTR(ret);
725 }
726
727 drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs);
728
729 return ipu_plane;
730}
731
