1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (C) 2014-2015 The Linux Foundation. All rights reserved.
4  * Copyright (C) 2013 Red Hat
5  * Author: Rob Clark <robdclark@gmail.com>
6  */
7 
8 #include <drm/drm_print.h>
9 #include "mdp5_kms.h"
10 
11 struct mdp5_plane {
12 	struct drm_plane base;
13 
14 	uint32_t nformats;
15 	uint32_t formats[32];
16 };
17 #define to_mdp5_plane(x) container_of(x, struct mdp5_plane, base)
18 
19 static int mdp5_plane_mode_set(struct drm_plane *plane,
20 		struct drm_crtc *crtc, struct drm_framebuffer *fb,
21 		struct drm_rect *src, struct drm_rect *dest);
22 
23 static struct mdp5_kms *get_kms(struct drm_plane *plane)
24 {
25 	struct msm_drm_private *priv = plane->dev->dev_private;
26 	return to_mdp5_kms(to_mdp_kms(priv->kms));
27 }
28 
29 static bool plane_enabled(struct drm_plane_state *state)
30 {
31 	return state->visible;
32 }
33 
34 static void mdp5_plane_destroy(struct drm_plane *plane)
35 {
36 	struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
37 
38 	drm_plane_cleanup(plane);
39 
40 	kfree(mdp5_plane);
41 }
42 
43 static void mdp5_plane_install_rotation_property(struct drm_device *dev,
44 		struct drm_plane *plane)
45 {
46 	drm_plane_create_rotation_property(plane,
47 					   DRM_MODE_ROTATE_0,
48 					   DRM_MODE_ROTATE_0 |
49 					   DRM_MODE_ROTATE_180 |
50 					   DRM_MODE_REFLECT_X |
51 					   DRM_MODE_REFLECT_Y);
52 }
53 
54 /* helper to install properties which are common to planes and crtcs */
55 static void mdp5_plane_install_properties(struct drm_plane *plane,
56 		struct drm_mode_object *obj)
57 {
58 	struct drm_device *dev = plane->dev;
59 	struct msm_drm_private *dev_priv = dev->dev_private;
60 	struct drm_property *prop;
61 
62 #define INSTALL_PROPERTY(name, NAME, init_val, fnc, ...) do { \
63 		prop = dev_priv->plane_property[PLANE_PROP_##NAME]; \
64 		if (!prop) { \
65 			prop = drm_property_##fnc(dev, 0, #name, \
66 				##__VA_ARGS__); \
67 			if (!prop) { \
68 				dev_warn(dev->dev, \
69 					"Create property %s failed\n", \
70 					#name); \
71 				return; \
72 			} \
73 			dev_priv->plane_property[PLANE_PROP_##NAME] = prop; \
74 		} \
75 		drm_object_attach_property(&plane->base, prop, init_val); \
76 	} while (0)
77 
78 #define INSTALL_RANGE_PROPERTY(name, NAME, min, max, init_val) \
79 		INSTALL_PROPERTY(name, NAME, init_val, \
80 				create_range, min, max)
81 
82 #define INSTALL_ENUM_PROPERTY(name, NAME, init_val) \
83 		INSTALL_PROPERTY(name, NAME, init_val, \
84 				create_enum, name##_prop_enum_list, \
85 				ARRAY_SIZE(name##_prop_enum_list))
86 
87 	INSTALL_RANGE_PROPERTY(zpos, ZPOS, 1, 255, 1);
88 
89 	mdp5_plane_install_rotation_property(dev, plane);
90 
91 #undef INSTALL_RANGE_PROPERTY
92 #undef INSTALL_ENUM_PROPERTY
93 #undef INSTALL_PROPERTY
94 }
95 
96 static int mdp5_plane_atomic_set_property(struct drm_plane *plane,
97 		struct drm_plane_state *state, struct drm_property *property,
98 		uint64_t val)
99 {
100 	struct drm_device *dev = plane->dev;
101 	struct mdp5_plane_state *pstate;
102 	struct msm_drm_private *dev_priv = dev->dev_private;
103 	int ret = 0;
104 
105 	pstate = to_mdp5_plane_state(state);
106 
107 #define SET_PROPERTY(name, NAME, type) do { \
108 		if (dev_priv->plane_property[PLANE_PROP_##NAME] == property) { \
109 			pstate->name = (type)val; \
110 			DBG("Set property %s %d", #name, (type)val); \
111 			goto done; \
112 		} \
113 	} while (0)
114 
115 	SET_PROPERTY(zpos, ZPOS, uint8_t);
116 
117 	DRM_DEV_ERROR(dev->dev, "Invalid property\n");
118 	ret = -EINVAL;
119 done:
120 	return ret;
121 #undef SET_PROPERTY
122 }
123 
124 static int mdp5_plane_atomic_get_property(struct drm_plane *plane,
125 		const struct drm_plane_state *state,
126 		struct drm_property *property, uint64_t *val)
127 {
128 	struct drm_device *dev = plane->dev;
129 	struct mdp5_plane_state *pstate;
130 	struct msm_drm_private *dev_priv = dev->dev_private;
131 	int ret = 0;
132 
133 	pstate = to_mdp5_plane_state(state);
134 
135 #define GET_PROPERTY(name, NAME, type) do { \
136 		if (dev_priv->plane_property[PLANE_PROP_##NAME] == property) { \
137 			*val = pstate->name; \
138 			DBG("Get property %s %lld", #name, *val); \
139 			goto done; \
140 		} \
141 	} while (0)
142 
143 	GET_PROPERTY(zpos, ZPOS, uint8_t);
144 
145 	DRM_DEV_ERROR(dev->dev, "Invalid property\n");
146 	ret = -EINVAL;
147 done:
148 	return ret;
149 #undef SET_PROPERTY
150 }
151 
152 static void
153 mdp5_plane_atomic_print_state(struct drm_printer *p,
154 		const struct drm_plane_state *state)
155 {
156 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(state);
157 	struct mdp5_kms *mdp5_kms = get_kms(state->plane);
158 
159 	drm_printf(p, "\thwpipe=%s\n", pstate->hwpipe ?
160 			pstate->hwpipe->name : "(null)");
161 	if (mdp5_kms->caps & MDP_CAP_SRC_SPLIT)
162 		drm_printf(p, "\tright-hwpipe=%s\n",
163 			   pstate->r_hwpipe ? pstate->r_hwpipe->name :
164 					      "(null)");
165 	drm_printf(p, "\tpremultiplied=%u\n", pstate->premultiplied);
166 	drm_printf(p, "\tzpos=%u\n", pstate->zpos);
167 	drm_printf(p, "\talpha=%u\n", pstate->alpha);
168 	drm_printf(p, "\tstage=%s\n", stage2name(pstate->stage));
169 }
170 
171 static void mdp5_plane_reset(struct drm_plane *plane)
172 {
173 	struct mdp5_plane_state *mdp5_state;
174 
175 	if (plane->state && plane->state->fb)
176 		drm_framebuffer_put(plane->state->fb);
177 
178 	kfree(to_mdp5_plane_state(plane->state));
179 	mdp5_state = kzalloc(sizeof(*mdp5_state), GFP_KERNEL);
180 
181 	/* assign default blend parameters */
182 	mdp5_state->alpha = 255;
183 	mdp5_state->premultiplied = 0;
184 
185 	if (plane->type == DRM_PLANE_TYPE_PRIMARY)
186 		mdp5_state->zpos = STAGE_BASE;
187 	else
188 		mdp5_state->zpos = STAGE0 + drm_plane_index(plane);
189 
190 	mdp5_state->base.plane = plane;
191 
192 	plane->state = &mdp5_state->base;
193 }
194 
195 static struct drm_plane_state *
196 mdp5_plane_duplicate_state(struct drm_plane *plane)
197 {
198 	struct mdp5_plane_state *mdp5_state;
199 
200 	if (WARN_ON(!plane->state))
201 		return NULL;
202 
203 	mdp5_state = kmemdup(to_mdp5_plane_state(plane->state),
204 			sizeof(*mdp5_state), GFP_KERNEL);
205 	if (!mdp5_state)
206 		return NULL;
207 
208 	__drm_atomic_helper_plane_duplicate_state(plane, &mdp5_state->base);
209 
210 	return &mdp5_state->base;
211 }
212 
213 static void mdp5_plane_destroy_state(struct drm_plane *plane,
214 		struct drm_plane_state *state)
215 {
216 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(state);
217 
218 	if (state->fb)
219 		drm_framebuffer_put(state->fb);
220 
221 	kfree(pstate);
222 }
223 
224 static const struct drm_plane_funcs mdp5_plane_funcs = {
225 		.update_plane = drm_atomic_helper_update_plane,
226 		.disable_plane = drm_atomic_helper_disable_plane,
227 		.destroy = mdp5_plane_destroy,
228 		.atomic_set_property = mdp5_plane_atomic_set_property,
229 		.atomic_get_property = mdp5_plane_atomic_get_property,
230 		.reset = mdp5_plane_reset,
231 		.atomic_duplicate_state = mdp5_plane_duplicate_state,
232 		.atomic_destroy_state = mdp5_plane_destroy_state,
233 		.atomic_print_state = mdp5_plane_atomic_print_state,
234 };
235 
236 static void mdp5_plane_cleanup_fb(struct drm_plane *plane,
237 				  struct drm_plane_state *old_state)
238 {
239 	struct mdp5_kms *mdp5_kms = get_kms(plane);
240 	struct msm_kms *kms = &mdp5_kms->base.base;
241 	struct drm_framebuffer *fb = old_state->fb;
242 
243 	if (!fb)
244 		return;
245 
246 	DBG("%s: cleanup: FB[%u]", plane->name, fb->base.id);
247 	msm_framebuffer_cleanup(fb, kms->aspace);
248 }
249 
250 static int mdp5_plane_atomic_check_with_state(struct drm_crtc_state *crtc_state,
251 					      struct drm_plane_state *state)
252 {
253 	struct mdp5_plane_state *mdp5_state = to_mdp5_plane_state(state);
254 	struct drm_plane *plane = state->plane;
255 	struct drm_plane_state *old_state = plane->state;
256 	struct mdp5_cfg *config = mdp5_cfg_get_config(get_kms(plane)->cfg);
257 	bool new_hwpipe = false;
258 	bool need_right_hwpipe = false;
259 	uint32_t max_width, max_height;
260 	bool out_of_bounds = false;
261 	uint32_t caps = 0;
262 	int min_scale, max_scale;
263 	int ret;
264 
265 	DBG("%s: check (%d -> %d)", plane->name,
266 			plane_enabled(old_state), plane_enabled(state));
267 
268 	max_width = config->hw->lm.max_width << 16;
269 	max_height = config->hw->lm.max_height << 16;
270 
271 	/* Make sure source dimensions are within bounds. */
272 	if (state->src_h > max_height)
273 		out_of_bounds = true;
274 
275 	if (state->src_w > max_width) {
276 		/* If source split is supported, we can go up to 2x
277 		 * the max LM width, but we'd need to stage another
278 		 * hwpipe to the right LM. So, the drm_plane would
279 		 * consist of 2 hwpipes.
280 		 */
281 		if (config->hw->mdp.caps & MDP_CAP_SRC_SPLIT &&
282 		    (state->src_w <= 2 * max_width))
283 			need_right_hwpipe = true;
284 		else
285 			out_of_bounds = true;
286 	}
287 
288 	if (out_of_bounds) {
289 		struct drm_rect src = drm_plane_state_src(state);
290 		DBG("Invalid source size "DRM_RECT_FP_FMT,
291 				DRM_RECT_FP_ARG(&src));
292 		return -ERANGE;
293 	}
294 
295 	min_scale = FRAC_16_16(1, 8);
296 	max_scale = FRAC_16_16(8, 1);
297 
298 	ret = drm_atomic_helper_check_plane_state(state, crtc_state,
299 						  min_scale, max_scale,
300 						  true, true);
301 	if (ret)
302 		return ret;
303 
304 	if (plane_enabled(state)) {
305 		unsigned int rotation;
306 		const struct mdp_format *format;
307 		struct mdp5_kms *mdp5_kms = get_kms(plane);
308 		uint32_t blkcfg = 0;
309 
310 		format = to_mdp_format(msm_framebuffer_format(state->fb));
311 		if (MDP_FORMAT_IS_YUV(format))
312 			caps |= MDP_PIPE_CAP_SCALE | MDP_PIPE_CAP_CSC;
313 
314 		if (((state->src_w >> 16) != state->crtc_w) ||
315 				((state->src_h >> 16) != state->crtc_h))
316 			caps |= MDP_PIPE_CAP_SCALE;
317 
318 		rotation = drm_rotation_simplify(state->rotation,
319 						 DRM_MODE_ROTATE_0 |
320 						 DRM_MODE_REFLECT_X |
321 						 DRM_MODE_REFLECT_Y);
322 
323 		if (rotation & DRM_MODE_REFLECT_X)
324 			caps |= MDP_PIPE_CAP_HFLIP;
325 
326 		if (rotation & DRM_MODE_REFLECT_Y)
327 			caps |= MDP_PIPE_CAP_VFLIP;
328 
329 		if (plane->type == DRM_PLANE_TYPE_CURSOR)
330 			caps |= MDP_PIPE_CAP_CURSOR;
331 
332 		/* (re)allocate hw pipe if we don't have one or caps-mismatch: */
333 		if (!mdp5_state->hwpipe || (caps & ~mdp5_state->hwpipe->caps))
334 			new_hwpipe = true;
335 
336 		/*
337 		 * (re)allocte hw pipe if we're either requesting for 2 hw pipes
338 		 * or we're switching from 2 hw pipes to 1 hw pipe because the
339 		 * new src_w can be supported by 1 hw pipe itself.
340 		 */
341 		if ((need_right_hwpipe && !mdp5_state->r_hwpipe) ||
342 		    (!need_right_hwpipe && mdp5_state->r_hwpipe))
343 			new_hwpipe = true;
344 
345 		if (mdp5_kms->smp) {
346 			const struct mdp_format *format =
347 				to_mdp_format(msm_framebuffer_format(state->fb));
348 
349 			blkcfg = mdp5_smp_calculate(mdp5_kms->smp, format,
350 					state->src_w >> 16, false);
351 
352 			if (mdp5_state->hwpipe && (mdp5_state->hwpipe->blkcfg != blkcfg))
353 				new_hwpipe = true;
354 		}
355 
356 		/* (re)assign hwpipe if needed, otherwise keep old one: */
357 		if (new_hwpipe) {
358 			/* TODO maybe we want to re-assign hwpipe sometimes
359 			 * in cases when we no-longer need some caps to make
360 			 * it available for other planes?
361 			 */
362 			struct mdp5_hw_pipe *old_hwpipe = mdp5_state->hwpipe;
363 			struct mdp5_hw_pipe *old_right_hwpipe =
364 							  mdp5_state->r_hwpipe;
365 			struct mdp5_hw_pipe *new_hwpipe = NULL;
366 			struct mdp5_hw_pipe *new_right_hwpipe = NULL;
367 
368 			ret = mdp5_pipe_assign(state->state, plane, caps,
369 					       blkcfg, &new_hwpipe,
370 					       need_right_hwpipe ?
371 					       &new_right_hwpipe : NULL);
372 			if (ret) {
373 				DBG("%s: failed to assign hwpipe(s)!",
374 				    plane->name);
375 				return ret;
376 			}
377 
378 			mdp5_state->hwpipe = new_hwpipe;
379 			if (need_right_hwpipe)
380 				mdp5_state->r_hwpipe = new_right_hwpipe;
381 			else
382 				/*
383 				 * set it to NULL so that the driver knows we
384 				 * don't have a right hwpipe when committing a
385 				 * new state
386 				 */
387 				mdp5_state->r_hwpipe = NULL;
388 
389 
390 			mdp5_pipe_release(state->state, old_hwpipe);
391 			mdp5_pipe_release(state->state, old_right_hwpipe);
392 		}
393 	} else {
394 		mdp5_pipe_release(state->state, mdp5_state->hwpipe);
395 		mdp5_pipe_release(state->state, mdp5_state->r_hwpipe);
396 		mdp5_state->hwpipe = mdp5_state->r_hwpipe = NULL;
397 	}
398 
399 	return 0;
400 }
401 
402 static int mdp5_plane_atomic_check(struct drm_plane *plane,
403 				   struct drm_plane_state *state)
404 {
405 	struct drm_crtc *crtc;
406 	struct drm_crtc_state *crtc_state;
407 
408 	crtc = state->crtc ? state->crtc : plane->state->crtc;
409 	if (!crtc)
410 		return 0;
411 
412 	crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc);
413 	if (WARN_ON(!crtc_state))
414 		return -EINVAL;
415 
416 	return mdp5_plane_atomic_check_with_state(crtc_state, state);
417 }
418 
419 static void mdp5_plane_atomic_update(struct drm_plane *plane,
420 				     struct drm_plane_state *old_state)
421 {
422 	struct drm_plane_state *state = plane->state;
423 
424 	DBG("%s: update", plane->name);
425 
426 	if (plane_enabled(state)) {
427 		int ret;
428 
429 		ret = mdp5_plane_mode_set(plane,
430 				state->crtc, state->fb,
431 				&state->src, &state->dst);
432 		/* atomic_check should have ensured that this doesn't fail */
433 		WARN_ON(ret < 0);
434 	}
435 }
436 
437 static int mdp5_plane_atomic_async_check(struct drm_plane *plane,
438 					 struct drm_plane_state *state)
439 {
440 	struct mdp5_plane_state *mdp5_state = to_mdp5_plane_state(state);
441 	struct drm_crtc_state *crtc_state;
442 	int min_scale, max_scale;
443 	int ret;
444 
445 	crtc_state = drm_atomic_get_existing_crtc_state(state->state,
446 							state->crtc);
447 	if (WARN_ON(!crtc_state))
448 		return -EINVAL;
449 
450 	if (!crtc_state->active)
451 		return -EINVAL;
452 
453 	mdp5_state = to_mdp5_plane_state(state);
454 
455 	/* don't use fast path if we don't have a hwpipe allocated yet */
456 	if (!mdp5_state->hwpipe)
457 		return -EINVAL;
458 
459 	/* only allow changing of position(crtc x/y or src x/y) in fast path */
460 	if (plane->state->crtc != state->crtc ||
461 	    plane->state->src_w != state->src_w ||
462 	    plane->state->src_h != state->src_h ||
463 	    plane->state->crtc_w != state->crtc_w ||
464 	    plane->state->crtc_h != state->crtc_h ||
465 	    !plane->state->fb ||
466 	    plane->state->fb != state->fb)
467 		return -EINVAL;
468 
469 	min_scale = FRAC_16_16(1, 8);
470 	max_scale = FRAC_16_16(8, 1);
471 
472 	ret = drm_atomic_helper_check_plane_state(state, crtc_state,
473 						  min_scale, max_scale,
474 						  true, true);
475 	if (ret)
476 		return ret;
477 
478 	/*
479 	 * if the visibility of the plane changes (i.e, if the cursor is
480 	 * clipped out completely, we can't take the async path because
481 	 * we need to stage/unstage the plane from the Layer Mixer(s). We
482 	 * also assign/unassign the hwpipe(s) tied to the plane. We avoid
483 	 * taking the fast path for both these reasons.
484 	 */
485 	if (state->visible != plane->state->visible)
486 		return -EINVAL;
487 
488 	return 0;
489 }
490 
491 static void mdp5_plane_atomic_async_update(struct drm_plane *plane,
492 					   struct drm_plane_state *new_state)
493 {
494 	struct drm_framebuffer *old_fb = plane->state->fb;
495 
496 	plane->state->src_x = new_state->src_x;
497 	plane->state->src_y = new_state->src_y;
498 	plane->state->crtc_x = new_state->crtc_x;
499 	plane->state->crtc_y = new_state->crtc_y;
500 
501 	if (plane_enabled(new_state)) {
502 		struct mdp5_ctl *ctl;
503 		struct mdp5_pipeline *pipeline =
504 					mdp5_crtc_get_pipeline(new_state->crtc);
505 		int ret;
506 
507 		ret = mdp5_plane_mode_set(plane, new_state->crtc, new_state->fb,
508 				&new_state->src, &new_state->dst);
509 		WARN_ON(ret < 0);
510 
511 		ctl = mdp5_crtc_get_ctl(new_state->crtc);
512 
513 		mdp5_ctl_commit(ctl, pipeline, mdp5_plane_get_flush(plane), true);
514 	}
515 
516 	*to_mdp5_plane_state(plane->state) =
517 		*to_mdp5_plane_state(new_state);
518 
519 	new_state->fb = old_fb;
520 }
521 
522 static const struct drm_plane_helper_funcs mdp5_plane_helper_funcs = {
523 		.prepare_fb = msm_atomic_prepare_fb,
524 		.cleanup_fb = mdp5_plane_cleanup_fb,
525 		.atomic_check = mdp5_plane_atomic_check,
526 		.atomic_update = mdp5_plane_atomic_update,
527 		.atomic_async_check = mdp5_plane_atomic_async_check,
528 		.atomic_async_update = mdp5_plane_atomic_async_update,
529 };
530 
531 static void set_scanout_locked(struct mdp5_kms *mdp5_kms,
532 			       enum mdp5_pipe pipe,
533 			       struct drm_framebuffer *fb)
534 {
535 	struct msm_kms *kms = &mdp5_kms->base.base;
536 
537 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_A(pipe),
538 			MDP5_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
539 			MDP5_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
540 
541 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_B(pipe),
542 			MDP5_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) |
543 			MDP5_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
544 
545 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC0_ADDR(pipe),
546 			msm_framebuffer_iova(fb, kms->aspace, 0));
547 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC1_ADDR(pipe),
548 			msm_framebuffer_iova(fb, kms->aspace, 1));
549 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC2_ADDR(pipe),
550 			msm_framebuffer_iova(fb, kms->aspace, 2));
551 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC3_ADDR(pipe),
552 			msm_framebuffer_iova(fb, kms->aspace, 3));
553 }
554 
555 /* Note: mdp5_plane->pipe_lock must be locked */
556 static void csc_disable(struct mdp5_kms *mdp5_kms, enum mdp5_pipe pipe)
557 {
558 	uint32_t value = mdp5_read(mdp5_kms, REG_MDP5_PIPE_OP_MODE(pipe)) &
559 			 ~MDP5_PIPE_OP_MODE_CSC_1_EN;
560 
561 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_OP_MODE(pipe), value);
562 }
563 
564 /* Note: mdp5_plane->pipe_lock must be locked */
565 static void csc_enable(struct mdp5_kms *mdp5_kms, enum mdp5_pipe pipe,
566 		struct csc_cfg *csc)
567 {
568 	uint32_t  i, mode = 0; /* RGB, no CSC */
569 	uint32_t *matrix;
570 
571 	if (unlikely(!csc))
572 		return;
573 
574 	if ((csc->type == CSC_YUV2RGB) || (CSC_YUV2YUV == csc->type))
575 		mode |= MDP5_PIPE_OP_MODE_CSC_SRC_DATA_FORMAT(DATA_FORMAT_YUV);
576 	if ((csc->type == CSC_RGB2YUV) || (CSC_YUV2YUV == csc->type))
577 		mode |= MDP5_PIPE_OP_MODE_CSC_DST_DATA_FORMAT(DATA_FORMAT_YUV);
578 	mode |= MDP5_PIPE_OP_MODE_CSC_1_EN;
579 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_OP_MODE(pipe), mode);
580 
581 	matrix = csc->matrix;
582 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_0(pipe),
583 			MDP5_PIPE_CSC_1_MATRIX_COEFF_0_COEFF_11(matrix[0]) |
584 			MDP5_PIPE_CSC_1_MATRIX_COEFF_0_COEFF_12(matrix[1]));
585 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_1(pipe),
586 			MDP5_PIPE_CSC_1_MATRIX_COEFF_1_COEFF_13(matrix[2]) |
587 			MDP5_PIPE_CSC_1_MATRIX_COEFF_1_COEFF_21(matrix[3]));
588 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_2(pipe),
589 			MDP5_PIPE_CSC_1_MATRIX_COEFF_2_COEFF_22(matrix[4]) |
590 			MDP5_PIPE_CSC_1_MATRIX_COEFF_2_COEFF_23(matrix[5]));
591 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_3(pipe),
592 			MDP5_PIPE_CSC_1_MATRIX_COEFF_3_COEFF_31(matrix[6]) |
593 			MDP5_PIPE_CSC_1_MATRIX_COEFF_3_COEFF_32(matrix[7]));
594 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_4(pipe),
595 			MDP5_PIPE_CSC_1_MATRIX_COEFF_4_COEFF_33(matrix[8]));
596 
597 	for (i = 0; i < ARRAY_SIZE(csc->pre_bias); i++) {
598 		uint32_t *pre_clamp = csc->pre_clamp;
599 		uint32_t *post_clamp = csc->post_clamp;
600 
601 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_PRE_CLAMP(pipe, i),
602 			MDP5_PIPE_CSC_1_PRE_CLAMP_REG_HIGH(pre_clamp[2*i+1]) |
603 			MDP5_PIPE_CSC_1_PRE_CLAMP_REG_LOW(pre_clamp[2*i]));
604 
605 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_POST_CLAMP(pipe, i),
606 			MDP5_PIPE_CSC_1_POST_CLAMP_REG_HIGH(post_clamp[2*i+1]) |
607 			MDP5_PIPE_CSC_1_POST_CLAMP_REG_LOW(post_clamp[2*i]));
608 
609 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_PRE_BIAS(pipe, i),
610 			MDP5_PIPE_CSC_1_PRE_BIAS_REG_VALUE(csc->pre_bias[i]));
611 
612 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_POST_BIAS(pipe, i),
613 			MDP5_PIPE_CSC_1_POST_BIAS_REG_VALUE(csc->post_bias[i]));
614 	}
615 }
616 
617 #define PHASE_STEP_SHIFT	21
618 #define DOWN_SCALE_RATIO_MAX	32	/* 2^(26-21) */
619 
620 static int calc_phase_step(uint32_t src, uint32_t dst, uint32_t *out_phase)
621 {
622 	uint32_t unit;
623 
624 	if (src == 0 || dst == 0)
625 		return -EINVAL;
626 
627 	/*
628 	 * PHASE_STEP_X/Y is coded on 26 bits (25:0),
629 	 * where 2^21 represents the unity "1" in fixed-point hardware design.
630 	 * This leaves 5 bits for the integer part (downscale case):
631 	 *	-> maximum downscale ratio = 0b1_1111 = 31
632 	 */
633 	if (src > (dst * DOWN_SCALE_RATIO_MAX))
634 		return -EOVERFLOW;
635 
636 	unit = 1 << PHASE_STEP_SHIFT;
637 	*out_phase = mult_frac(unit, src, dst);
638 
639 	return 0;
640 }
641 
642 static int calc_scalex_steps(struct drm_plane *plane,
643 		uint32_t pixel_format, uint32_t src, uint32_t dest,
644 		uint32_t phasex_steps[COMP_MAX])
645 {
646 	struct mdp5_kms *mdp5_kms = get_kms(plane);
647 	struct device *dev = mdp5_kms->dev->dev;
648 	uint32_t phasex_step;
649 	unsigned int hsub;
650 	int ret;
651 
652 	ret = calc_phase_step(src, dest, &phasex_step);
653 	if (ret) {
654 		DRM_DEV_ERROR(dev, "X scaling (%d->%d) failed: %d\n", src, dest, ret);
655 		return ret;
656 	}
657 
658 	hsub = drm_format_horz_chroma_subsampling(pixel_format);
659 
660 	phasex_steps[COMP_0]   = phasex_step;
661 	phasex_steps[COMP_3]   = phasex_step;
662 	phasex_steps[COMP_1_2] = phasex_step / hsub;
663 
664 	return 0;
665 }
666 
667 static int calc_scaley_steps(struct drm_plane *plane,
668 		uint32_t pixel_format, uint32_t src, uint32_t dest,
669 		uint32_t phasey_steps[COMP_MAX])
670 {
671 	struct mdp5_kms *mdp5_kms = get_kms(plane);
672 	struct device *dev = mdp5_kms->dev->dev;
673 	uint32_t phasey_step;
674 	unsigned int vsub;
675 	int ret;
676 
677 	ret = calc_phase_step(src, dest, &phasey_step);
678 	if (ret) {
679 		DRM_DEV_ERROR(dev, "Y scaling (%d->%d) failed: %d\n", src, dest, ret);
680 		return ret;
681 	}
682 
683 	vsub = drm_format_vert_chroma_subsampling(pixel_format);
684 
685 	phasey_steps[COMP_0]   = phasey_step;
686 	phasey_steps[COMP_3]   = phasey_step;
687 	phasey_steps[COMP_1_2] = phasey_step / vsub;
688 
689 	return 0;
690 }
691 
692 static uint32_t get_scale_config(const struct mdp_format *format,
693 		uint32_t src, uint32_t dst, bool horz)
694 {
695 	bool scaling = format->is_yuv ? true : (src != dst);
696 	uint32_t sub, pix_fmt = format->base.pixel_format;
697 	uint32_t ya_filter, uv_filter;
698 	bool yuv = format->is_yuv;
699 
700 	if (!scaling)
701 		return 0;
702 
703 	if (yuv) {
704 		sub = horz ? drm_format_horz_chroma_subsampling(pix_fmt) :
705 			     drm_format_vert_chroma_subsampling(pix_fmt);
706 		uv_filter = ((src / sub) <= dst) ?
707 				   SCALE_FILTER_BIL : SCALE_FILTER_PCMN;
708 	}
709 	ya_filter = (src <= dst) ? SCALE_FILTER_BIL : SCALE_FILTER_PCMN;
710 
711 	if (horz)
712 		return  MDP5_PIPE_SCALE_CONFIG_SCALEX_EN |
713 			MDP5_PIPE_SCALE_CONFIG_SCALEX_FILTER_COMP_0(ya_filter) |
714 			MDP5_PIPE_SCALE_CONFIG_SCALEX_FILTER_COMP_3(ya_filter) |
715 			COND(yuv, MDP5_PIPE_SCALE_CONFIG_SCALEX_FILTER_COMP_1_2(uv_filter));
716 	else
717 		return  MDP5_PIPE_SCALE_CONFIG_SCALEY_EN |
718 			MDP5_PIPE_SCALE_CONFIG_SCALEY_FILTER_COMP_0(ya_filter) |
719 			MDP5_PIPE_SCALE_CONFIG_SCALEY_FILTER_COMP_3(ya_filter) |
720 			COND(yuv, MDP5_PIPE_SCALE_CONFIG_SCALEY_FILTER_COMP_1_2(uv_filter));
721 }
722 
723 static void calc_pixel_ext(const struct mdp_format *format,
724 		uint32_t src, uint32_t dst, uint32_t phase_step[2],
725 		int pix_ext_edge1[COMP_MAX], int pix_ext_edge2[COMP_MAX],
726 		bool horz)
727 {
728 	bool scaling = format->is_yuv ? true : (src != dst);
729 	int i;
730 
731 	/*
732 	 * Note:
733 	 * We assume here that:
734 	 *     1. PCMN filter is used for downscale
735 	 *     2. bilinear filter is used for upscale
736 	 *     3. we are in a single pipe configuration
737 	 */
738 
739 	for (i = 0; i < COMP_MAX; i++) {
740 		pix_ext_edge1[i] = 0;
741 		pix_ext_edge2[i] = scaling ? 1 : 0;
742 	}
743 }
744 
745 static void mdp5_write_pixel_ext(struct mdp5_kms *mdp5_kms, enum mdp5_pipe pipe,
746 	const struct mdp_format *format,
747 	uint32_t src_w, int pe_left[COMP_MAX], int pe_right[COMP_MAX],
748 	uint32_t src_h, int pe_top[COMP_MAX], int pe_bottom[COMP_MAX])
749 {
750 	uint32_t pix_fmt = format->base.pixel_format;
751 	uint32_t lr, tb, req;
752 	int i;
753 
754 	for (i = 0; i < COMP_MAX; i++) {
755 		uint32_t roi_w = src_w;
756 		uint32_t roi_h = src_h;
757 
758 		if (format->is_yuv && i == COMP_1_2) {
759 			roi_w /= drm_format_horz_chroma_subsampling(pix_fmt);
760 			roi_h /= drm_format_vert_chroma_subsampling(pix_fmt);
761 		}
762 
763 		lr  = (pe_left[i] >= 0) ?
764 			MDP5_PIPE_SW_PIX_EXT_LR_LEFT_RPT(pe_left[i]) :
765 			MDP5_PIPE_SW_PIX_EXT_LR_LEFT_OVF(pe_left[i]);
766 
767 		lr |= (pe_right[i] >= 0) ?
768 			MDP5_PIPE_SW_PIX_EXT_LR_RIGHT_RPT(pe_right[i]) :
769 			MDP5_PIPE_SW_PIX_EXT_LR_RIGHT_OVF(pe_right[i]);
770 
771 		tb  = (pe_top[i] >= 0) ?
772 			MDP5_PIPE_SW_PIX_EXT_TB_TOP_RPT(pe_top[i]) :
773 			MDP5_PIPE_SW_PIX_EXT_TB_TOP_OVF(pe_top[i]);
774 
775 		tb |= (pe_bottom[i] >= 0) ?
776 			MDP5_PIPE_SW_PIX_EXT_TB_BOTTOM_RPT(pe_bottom[i]) :
777 			MDP5_PIPE_SW_PIX_EXT_TB_BOTTOM_OVF(pe_bottom[i]);
778 
779 		req  = MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS_LEFT_RIGHT(roi_w +
780 				pe_left[i] + pe_right[i]);
781 
782 		req |= MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS_TOP_BOTTOM(roi_h +
783 				pe_top[i] + pe_bottom[i]);
784 
785 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SW_PIX_EXT_LR(pipe, i), lr);
786 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SW_PIX_EXT_TB(pipe, i), tb);
787 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS(pipe, i), req);
788 
789 		DBG("comp-%d (L/R): rpt=%d/%d, ovf=%d/%d, req=%d", i,
790 			FIELD(lr,  MDP5_PIPE_SW_PIX_EXT_LR_LEFT_RPT),
791 			FIELD(lr,  MDP5_PIPE_SW_PIX_EXT_LR_RIGHT_RPT),
792 			FIELD(lr,  MDP5_PIPE_SW_PIX_EXT_LR_LEFT_OVF),
793 			FIELD(lr,  MDP5_PIPE_SW_PIX_EXT_LR_RIGHT_OVF),
794 			FIELD(req, MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS_LEFT_RIGHT));
795 
796 		DBG("comp-%d (T/B): rpt=%d/%d, ovf=%d/%d, req=%d", i,
797 			FIELD(tb,  MDP5_PIPE_SW_PIX_EXT_TB_TOP_RPT),
798 			FIELD(tb,  MDP5_PIPE_SW_PIX_EXT_TB_BOTTOM_RPT),
799 			FIELD(tb,  MDP5_PIPE_SW_PIX_EXT_TB_TOP_OVF),
800 			FIELD(tb,  MDP5_PIPE_SW_PIX_EXT_TB_BOTTOM_OVF),
801 			FIELD(req, MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS_TOP_BOTTOM));
802 	}
803 }
804 
805 struct pixel_ext {
806 	int left[COMP_MAX];
807 	int right[COMP_MAX];
808 	int top[COMP_MAX];
809 	int bottom[COMP_MAX];
810 };
811 
812 struct phase_step {
813 	u32 x[COMP_MAX];
814 	u32 y[COMP_MAX];
815 };
816 
817 static void mdp5_hwpipe_mode_set(struct mdp5_kms *mdp5_kms,
818 				 struct mdp5_hw_pipe *hwpipe,
819 				 struct drm_framebuffer *fb,
820 				 struct phase_step *step,
821 				 struct pixel_ext *pe,
822 				 u32 scale_config, u32 hdecm, u32 vdecm,
823 				 bool hflip, bool vflip,
824 				 int crtc_x, int crtc_y,
825 				 unsigned int crtc_w, unsigned int crtc_h,
826 				 u32 src_img_w, u32 src_img_h,
827 				 u32 src_x, u32 src_y,
828 				 u32 src_w, u32 src_h)
829 {
830 	enum mdp5_pipe pipe = hwpipe->pipe;
831 	bool has_pe = hwpipe->caps & MDP_PIPE_CAP_SW_PIX_EXT;
832 	const struct mdp_format *format =
833 			to_mdp_format(msm_framebuffer_format(fb));
834 
835 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_IMG_SIZE(pipe),
836 			MDP5_PIPE_SRC_IMG_SIZE_WIDTH(src_img_w) |
837 			MDP5_PIPE_SRC_IMG_SIZE_HEIGHT(src_img_h));
838 
839 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_SIZE(pipe),
840 			MDP5_PIPE_SRC_SIZE_WIDTH(src_w) |
841 			MDP5_PIPE_SRC_SIZE_HEIGHT(src_h));
842 
843 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_XY(pipe),
844 			MDP5_PIPE_SRC_XY_X(src_x) |
845 			MDP5_PIPE_SRC_XY_Y(src_y));
846 
847 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_OUT_SIZE(pipe),
848 			MDP5_PIPE_OUT_SIZE_WIDTH(crtc_w) |
849 			MDP5_PIPE_OUT_SIZE_HEIGHT(crtc_h));
850 
851 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_OUT_XY(pipe),
852 			MDP5_PIPE_OUT_XY_X(crtc_x) |
853 			MDP5_PIPE_OUT_XY_Y(crtc_y));
854 
855 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_FORMAT(pipe),
856 			MDP5_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) |
857 			MDP5_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) |
858 			MDP5_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) |
859 			MDP5_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) |
860 			COND(format->alpha_enable, MDP5_PIPE_SRC_FORMAT_ALPHA_ENABLE) |
861 			MDP5_PIPE_SRC_FORMAT_CPP(format->cpp - 1) |
862 			MDP5_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
863 			COND(format->unpack_tight, MDP5_PIPE_SRC_FORMAT_UNPACK_TIGHT) |
864 			MDP5_PIPE_SRC_FORMAT_FETCH_TYPE(format->fetch_type) |
865 			MDP5_PIPE_SRC_FORMAT_CHROMA_SAMP(format->chroma_sample));
866 
867 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_UNPACK(pipe),
868 			MDP5_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) |
869 			MDP5_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) |
870 			MDP5_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) |
871 			MDP5_PIPE_SRC_UNPACK_ELEM3(format->unpack[3]));
872 
873 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_OP_MODE(pipe),
874 			(hflip ? MDP5_PIPE_SRC_OP_MODE_FLIP_LR : 0) |
875 			(vflip ? MDP5_PIPE_SRC_OP_MODE_FLIP_UD : 0) |
876 			COND(has_pe, MDP5_PIPE_SRC_OP_MODE_SW_PIX_EXT_OVERRIDE) |
877 			MDP5_PIPE_SRC_OP_MODE_BWC(BWC_LOSSLESS));
878 
879 	/* not using secure mode: */
880 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_ADDR_SW_STATUS(pipe), 0);
881 
882 	if (hwpipe->caps & MDP_PIPE_CAP_SW_PIX_EXT)
883 		mdp5_write_pixel_ext(mdp5_kms, pipe, format,
884 				src_w, pe->left, pe->right,
885 				src_h, pe->top, pe->bottom);
886 
887 	if (hwpipe->caps & MDP_PIPE_CAP_SCALE) {
888 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_PHASE_STEP_X(pipe),
889 				step->x[COMP_0]);
890 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_PHASE_STEP_Y(pipe),
891 				step->y[COMP_0]);
892 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_CR_PHASE_STEP_X(pipe),
893 				step->x[COMP_1_2]);
894 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_CR_PHASE_STEP_Y(pipe),
895 				step->y[COMP_1_2]);
896 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_DECIMATION(pipe),
897 				MDP5_PIPE_DECIMATION_VERT(vdecm) |
898 				MDP5_PIPE_DECIMATION_HORZ(hdecm));
899 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_CONFIG(pipe),
900 			   scale_config);
901 	}
902 
903 	if (hwpipe->caps & MDP_PIPE_CAP_CSC) {
904 		if (MDP_FORMAT_IS_YUV(format))
905 			csc_enable(mdp5_kms, pipe,
906 					mdp_get_default_csc_cfg(CSC_YUV2RGB));
907 		else
908 			csc_disable(mdp5_kms, pipe);
909 	}
910 
911 	set_scanout_locked(mdp5_kms, pipe, fb);
912 }
913 
914 static int mdp5_plane_mode_set(struct drm_plane *plane,
915 		struct drm_crtc *crtc, struct drm_framebuffer *fb,
916 		struct drm_rect *src, struct drm_rect *dest)
917 {
918 	struct drm_plane_state *pstate = plane->state;
919 	struct mdp5_hw_pipe *hwpipe = to_mdp5_plane_state(pstate)->hwpipe;
920 	struct mdp5_kms *mdp5_kms = get_kms(plane);
921 	enum mdp5_pipe pipe = hwpipe->pipe;
922 	struct mdp5_hw_pipe *right_hwpipe;
923 	const struct mdp_format *format;
924 	uint32_t nplanes, config = 0;
925 	struct phase_step step = { { 0 } };
926 	struct pixel_ext pe = { { 0 } };
927 	uint32_t hdecm = 0, vdecm = 0;
928 	uint32_t pix_format;
929 	unsigned int rotation;
930 	bool vflip, hflip;
931 	int crtc_x, crtc_y;
932 	unsigned int crtc_w, crtc_h;
933 	uint32_t src_x, src_y;
934 	uint32_t src_w, src_h;
935 	uint32_t src_img_w, src_img_h;
936 	int ret;
937 
938 	nplanes = fb->format->num_planes;
939 
940 	/* bad formats should already be rejected: */
941 	if (WARN_ON(nplanes > pipe2nclients(pipe)))
942 		return -EINVAL;
943 
944 	format = to_mdp_format(msm_framebuffer_format(fb));
945 	pix_format = format->base.pixel_format;
946 
947 	src_x = src->x1;
948 	src_y = src->y1;
949 	src_w = drm_rect_width(src);
950 	src_h = drm_rect_height(src);
951 
952 	crtc_x = dest->x1;
953 	crtc_y = dest->y1;
954 	crtc_w = drm_rect_width(dest);
955 	crtc_h = drm_rect_height(dest);
956 
957 	/* src values are in Q16 fixed point, convert to integer: */
958 	src_x = src_x >> 16;
959 	src_y = src_y >> 16;
960 	src_w = src_w >> 16;
961 	src_h = src_h >> 16;
962 
963 	src_img_w = min(fb->width, src_w);
964 	src_img_h = min(fb->height, src_h);
965 
966 	DBG("%s: FB[%u] %u,%u,%u,%u -> CRTC[%u] %d,%d,%u,%u", plane->name,
967 			fb->base.id, src_x, src_y, src_w, src_h,
968 			crtc->base.id, crtc_x, crtc_y, crtc_w, crtc_h);
969 
970 	right_hwpipe = to_mdp5_plane_state(pstate)->r_hwpipe;
971 	if (right_hwpipe) {
972 		/*
973 		 * if the plane comprises of 2 hw pipes, assume that the width
974 		 * is split equally across them. The only parameters that varies
975 		 * between the 2 pipes are src_x and crtc_x
976 		 */
977 		crtc_w /= 2;
978 		src_w /= 2;
979 		src_img_w /= 2;
980 	}
981 
982 	ret = calc_scalex_steps(plane, pix_format, src_w, crtc_w, step.x);
983 	if (ret)
984 		return ret;
985 
986 	ret = calc_scaley_steps(plane, pix_format, src_h, crtc_h, step.y);
987 	if (ret)
988 		return ret;
989 
990 	if (hwpipe->caps & MDP_PIPE_CAP_SW_PIX_EXT) {
991 		calc_pixel_ext(format, src_w, crtc_w, step.x,
992 			       pe.left, pe.right, true);
993 		calc_pixel_ext(format, src_h, crtc_h, step.y,
994 			       pe.top, pe.bottom, false);
995 	}
996 
997 	/* TODO calc hdecm, vdecm */
998 
999 	/* SCALE is used to both scale and up-sample chroma components */
1000 	config |= get_scale_config(format, src_w, crtc_w, true);
1001 	config |= get_scale_config(format, src_h, crtc_h, false);
1002 	DBG("scale config = %x", config);
1003 
1004 	rotation = drm_rotation_simplify(pstate->rotation,
1005 					 DRM_MODE_ROTATE_0 |
1006 					 DRM_MODE_REFLECT_X |
1007 					 DRM_MODE_REFLECT_Y);
1008 	hflip = !!(rotation & DRM_MODE_REFLECT_X);
1009 	vflip = !!(rotation & DRM_MODE_REFLECT_Y);
1010 
1011 	mdp5_hwpipe_mode_set(mdp5_kms, hwpipe, fb, &step, &pe,
1012 			     config, hdecm, vdecm, hflip, vflip,
1013 			     crtc_x, crtc_y, crtc_w, crtc_h,
1014 			     src_img_w, src_img_h,
1015 			     src_x, src_y, src_w, src_h);
1016 	if (right_hwpipe)
1017 		mdp5_hwpipe_mode_set(mdp5_kms, right_hwpipe, fb, &step, &pe,
1018 				     config, hdecm, vdecm, hflip, vflip,
1019 				     crtc_x + crtc_w, crtc_y, crtc_w, crtc_h,
1020 				     src_img_w, src_img_h,
1021 				     src_x + src_w, src_y, src_w, src_h);
1022 
1023 	return ret;
1024 }
1025 
1026 /*
1027  * Use this func and the one below only after the atomic state has been
1028  * successfully swapped
1029  */
1030 enum mdp5_pipe mdp5_plane_pipe(struct drm_plane *plane)
1031 {
1032 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(plane->state);
1033 
1034 	if (WARN_ON(!pstate->hwpipe))
1035 		return SSPP_NONE;
1036 
1037 	return pstate->hwpipe->pipe;
1038 }
1039 
1040 enum mdp5_pipe mdp5_plane_right_pipe(struct drm_plane *plane)
1041 {
1042 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(plane->state);
1043 
1044 	if (!pstate->r_hwpipe)
1045 		return SSPP_NONE;
1046 
1047 	return pstate->r_hwpipe->pipe;
1048 }
1049 
1050 uint32_t mdp5_plane_get_flush(struct drm_plane *plane)
1051 {
1052 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(plane->state);
1053 	u32 mask;
1054 
1055 	if (WARN_ON(!pstate->hwpipe))
1056 		return 0;
1057 
1058 	mask = pstate->hwpipe->flush_mask;
1059 
1060 	if (pstate->r_hwpipe)
1061 		mask |= pstate->r_hwpipe->flush_mask;
1062 
1063 	return mask;
1064 }
1065 
1066 /* initialize plane */
1067 struct drm_plane *mdp5_plane_init(struct drm_device *dev,
1068 				  enum drm_plane_type type)
1069 {
1070 	struct drm_plane *plane = NULL;
1071 	struct mdp5_plane *mdp5_plane;
1072 	int ret;
1073 
1074 	mdp5_plane = kzalloc(sizeof(*mdp5_plane), GFP_KERNEL);
1075 	if (!mdp5_plane) {
1076 		ret = -ENOMEM;
1077 		goto fail;
1078 	}
1079 
1080 	plane = &mdp5_plane->base;
1081 
1082 	mdp5_plane->nformats = mdp_get_formats(mdp5_plane->formats,
1083 		ARRAY_SIZE(mdp5_plane->formats), false);
1084 
1085 	ret = drm_universal_plane_init(dev, plane, 0xff, &mdp5_plane_funcs,
1086 			mdp5_plane->formats, mdp5_plane->nformats,
1087 			NULL, type, NULL);
1088 	if (ret)
1089 		goto fail;
1090 
1091 	drm_plane_helper_add(plane, &mdp5_plane_helper_funcs);
1092 
1093 	mdp5_plane_install_properties(plane, &plane->base);
1094 
1095 	return plane;
1096 
1097 fail:
1098 	if (plane)
1099 		mdp5_plane_destroy(plane);
1100 
1101 	return ERR_PTR(ret);
1102 }
1103