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_damage_helper.h>
9 #include <drm/drm_fourcc.h>
10 #include <drm/drm_print.h>
11 
12 #include "mdp5_kms.h"
13 
14 struct mdp5_plane {
15 	struct drm_plane base;
16 
17 	uint32_t nformats;
18 	uint32_t formats[32];
19 };
20 #define to_mdp5_plane(x) container_of(x, struct mdp5_plane, base)
21 
22 static int mdp5_plane_mode_set(struct drm_plane *plane,
23 		struct drm_crtc *crtc, struct drm_framebuffer *fb,
24 		struct drm_rect *src, struct drm_rect *dest);
25 
get_kms(struct drm_plane * plane)26 static struct mdp5_kms *get_kms(struct drm_plane *plane)
27 {
28 	struct msm_drm_private *priv = plane->dev->dev_private;
29 	return to_mdp5_kms(to_mdp_kms(priv->kms));
30 }
31 
plane_enabled(struct drm_plane_state * state)32 static bool plane_enabled(struct drm_plane_state *state)
33 {
34 	return state->visible;
35 }
36 
mdp5_plane_destroy(struct drm_plane * plane)37 static void mdp5_plane_destroy(struct drm_plane *plane)
38 {
39 	struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
40 
41 	drm_plane_cleanup(plane);
42 
43 	kfree(mdp5_plane);
44 }
45 
mdp5_plane_install_rotation_property(struct drm_device * dev,struct drm_plane * plane)46 static void mdp5_plane_install_rotation_property(struct drm_device *dev,
47 		struct drm_plane *plane)
48 {
49 	drm_plane_create_rotation_property(plane,
50 					   DRM_MODE_ROTATE_0,
51 					   DRM_MODE_ROTATE_0 |
52 					   DRM_MODE_ROTATE_180 |
53 					   DRM_MODE_REFLECT_X |
54 					   DRM_MODE_REFLECT_Y);
55 }
56 
57 /* helper to install properties which are common to planes and crtcs */
mdp5_plane_install_properties(struct drm_plane * plane,struct drm_mode_object * obj)58 static void mdp5_plane_install_properties(struct drm_plane *plane,
59 		struct drm_mode_object *obj)
60 {
61 	struct drm_device *dev = plane->dev;
62 	struct msm_drm_private *dev_priv = dev->dev_private;
63 	struct drm_property *prop;
64 
65 #define INSTALL_PROPERTY(name, NAME, init_val, fnc, ...) do { \
66 		prop = dev_priv->plane_property[PLANE_PROP_##NAME]; \
67 		if (!prop) { \
68 			prop = drm_property_##fnc(dev, 0, #name, \
69 				##__VA_ARGS__); \
70 			if (!prop) { \
71 				dev_warn(dev->dev, \
72 					"Create property %s failed\n", \
73 					#name); \
74 				return; \
75 			} \
76 			dev_priv->plane_property[PLANE_PROP_##NAME] = prop; \
77 		} \
78 		drm_object_attach_property(&plane->base, prop, init_val); \
79 	} while (0)
80 
81 #define INSTALL_RANGE_PROPERTY(name, NAME, min, max, init_val) \
82 		INSTALL_PROPERTY(name, NAME, init_val, \
83 				create_range, min, max)
84 
85 #define INSTALL_ENUM_PROPERTY(name, NAME, init_val) \
86 		INSTALL_PROPERTY(name, NAME, init_val, \
87 				create_enum, name##_prop_enum_list, \
88 				ARRAY_SIZE(name##_prop_enum_list))
89 
90 	INSTALL_RANGE_PROPERTY(zpos, ZPOS, 1, 255, 1);
91 
92 	mdp5_plane_install_rotation_property(dev, plane);
93 
94 #undef INSTALL_RANGE_PROPERTY
95 #undef INSTALL_ENUM_PROPERTY
96 #undef INSTALL_PROPERTY
97 }
98 
mdp5_plane_atomic_set_property(struct drm_plane * plane,struct drm_plane_state * state,struct drm_property * property,uint64_t val)99 static int mdp5_plane_atomic_set_property(struct drm_plane *plane,
100 		struct drm_plane_state *state, struct drm_property *property,
101 		uint64_t val)
102 {
103 	struct drm_device *dev = plane->dev;
104 	struct mdp5_plane_state *pstate;
105 	struct msm_drm_private *dev_priv = dev->dev_private;
106 	int ret = 0;
107 
108 	pstate = to_mdp5_plane_state(state);
109 
110 #define SET_PROPERTY(name, NAME, type) do { \
111 		if (dev_priv->plane_property[PLANE_PROP_##NAME] == property) { \
112 			pstate->name = (type)val; \
113 			DBG("Set property %s %d", #name, (type)val); \
114 			goto done; \
115 		} \
116 	} while (0)
117 
118 	SET_PROPERTY(zpos, ZPOS, uint8_t);
119 
120 	DRM_DEV_ERROR(dev->dev, "Invalid property\n");
121 	ret = -EINVAL;
122 done:
123 	return ret;
124 #undef SET_PROPERTY
125 }
126 
mdp5_plane_atomic_get_property(struct drm_plane * plane,const struct drm_plane_state * state,struct drm_property * property,uint64_t * val)127 static int mdp5_plane_atomic_get_property(struct drm_plane *plane,
128 		const struct drm_plane_state *state,
129 		struct drm_property *property, uint64_t *val)
130 {
131 	struct drm_device *dev = plane->dev;
132 	struct mdp5_plane_state *pstate;
133 	struct msm_drm_private *dev_priv = dev->dev_private;
134 	int ret = 0;
135 
136 	pstate = to_mdp5_plane_state(state);
137 
138 #define GET_PROPERTY(name, NAME, type) do { \
139 		if (dev_priv->plane_property[PLANE_PROP_##NAME] == property) { \
140 			*val = pstate->name; \
141 			DBG("Get property %s %lld", #name, *val); \
142 			goto done; \
143 		} \
144 	} while (0)
145 
146 	GET_PROPERTY(zpos, ZPOS, uint8_t);
147 
148 	DRM_DEV_ERROR(dev->dev, "Invalid property\n");
149 	ret = -EINVAL;
150 done:
151 	return ret;
152 #undef SET_PROPERTY
153 }
154 
155 static void
mdp5_plane_atomic_print_state(struct drm_printer * p,const struct drm_plane_state * state)156 mdp5_plane_atomic_print_state(struct drm_printer *p,
157 		const struct drm_plane_state *state)
158 {
159 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(state);
160 	struct mdp5_kms *mdp5_kms = get_kms(state->plane);
161 
162 	drm_printf(p, "\thwpipe=%s\n", pstate->hwpipe ?
163 			pstate->hwpipe->name : "(null)");
164 	if (mdp5_kms->caps & MDP_CAP_SRC_SPLIT)
165 		drm_printf(p, "\tright-hwpipe=%s\n",
166 			   pstate->r_hwpipe ? pstate->r_hwpipe->name :
167 					      "(null)");
168 	drm_printf(p, "\tpremultiplied=%u\n", pstate->premultiplied);
169 	drm_printf(p, "\tzpos=%u\n", pstate->zpos);
170 	drm_printf(p, "\talpha=%u\n", pstate->alpha);
171 	drm_printf(p, "\tstage=%s\n", stage2name(pstate->stage));
172 }
173 
mdp5_plane_reset(struct drm_plane * plane)174 static void mdp5_plane_reset(struct drm_plane *plane)
175 {
176 	struct mdp5_plane_state *mdp5_state;
177 
178 	if (plane->state && plane->state->fb)
179 		drm_framebuffer_put(plane->state->fb);
180 
181 	kfree(to_mdp5_plane_state(plane->state));
182 	mdp5_state = kzalloc(sizeof(*mdp5_state), GFP_KERNEL);
183 
184 	/* assign default blend parameters */
185 	mdp5_state->alpha = 255;
186 	mdp5_state->premultiplied = 0;
187 
188 	if (plane->type == DRM_PLANE_TYPE_PRIMARY)
189 		mdp5_state->zpos = STAGE_BASE;
190 	else
191 		mdp5_state->zpos = STAGE0 + drm_plane_index(plane);
192 
193 	mdp5_state->base.plane = plane;
194 
195 	plane->state = &mdp5_state->base;
196 }
197 
198 static struct drm_plane_state *
mdp5_plane_duplicate_state(struct drm_plane * plane)199 mdp5_plane_duplicate_state(struct drm_plane *plane)
200 {
201 	struct mdp5_plane_state *mdp5_state;
202 
203 	if (WARN_ON(!plane->state))
204 		return NULL;
205 
206 	mdp5_state = kmemdup(to_mdp5_plane_state(plane->state),
207 			sizeof(*mdp5_state), GFP_KERNEL);
208 	if (!mdp5_state)
209 		return NULL;
210 
211 	__drm_atomic_helper_plane_duplicate_state(plane, &mdp5_state->base);
212 
213 	return &mdp5_state->base;
214 }
215 
mdp5_plane_destroy_state(struct drm_plane * plane,struct drm_plane_state * state)216 static void mdp5_plane_destroy_state(struct drm_plane *plane,
217 		struct drm_plane_state *state)
218 {
219 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(state);
220 
221 	if (state->fb)
222 		drm_framebuffer_put(state->fb);
223 
224 	kfree(pstate);
225 }
226 
227 static const struct drm_plane_funcs mdp5_plane_funcs = {
228 		.update_plane = drm_atomic_helper_update_plane,
229 		.disable_plane = drm_atomic_helper_disable_plane,
230 		.destroy = mdp5_plane_destroy,
231 		.atomic_set_property = mdp5_plane_atomic_set_property,
232 		.atomic_get_property = mdp5_plane_atomic_get_property,
233 		.reset = mdp5_plane_reset,
234 		.atomic_duplicate_state = mdp5_plane_duplicate_state,
235 		.atomic_destroy_state = mdp5_plane_destroy_state,
236 		.atomic_print_state = mdp5_plane_atomic_print_state,
237 };
238 
mdp5_plane_cleanup_fb(struct drm_plane * plane,struct drm_plane_state * old_state)239 static void mdp5_plane_cleanup_fb(struct drm_plane *plane,
240 				  struct drm_plane_state *old_state)
241 {
242 	struct mdp5_kms *mdp5_kms = get_kms(plane);
243 	struct msm_kms *kms = &mdp5_kms->base.base;
244 	struct drm_framebuffer *fb = old_state->fb;
245 
246 	if (!fb)
247 		return;
248 
249 	DBG("%s: cleanup: FB[%u]", plane->name, fb->base.id);
250 	msm_framebuffer_cleanup(fb, kms->aspace);
251 }
252 
mdp5_plane_atomic_check_with_state(struct drm_crtc_state * crtc_state,struct drm_plane_state * state)253 static int mdp5_plane_atomic_check_with_state(struct drm_crtc_state *crtc_state,
254 					      struct drm_plane_state *state)
255 {
256 	struct mdp5_plane_state *mdp5_state = to_mdp5_plane_state(state);
257 	struct drm_plane *plane = state->plane;
258 	struct drm_plane_state *old_state = plane->state;
259 	struct mdp5_cfg *config = mdp5_cfg_get_config(get_kms(plane)->cfg);
260 	bool new_hwpipe = false;
261 	bool need_right_hwpipe = false;
262 	uint32_t max_width, max_height;
263 	bool out_of_bounds = false;
264 	uint32_t caps = 0;
265 	int min_scale, max_scale;
266 	int ret;
267 
268 	DBG("%s: check (%d -> %d)", plane->name,
269 			plane_enabled(old_state), plane_enabled(state));
270 
271 	max_width = config->hw->lm.max_width << 16;
272 	max_height = config->hw->lm.max_height << 16;
273 
274 	/* Make sure source dimensions are within bounds. */
275 	if (state->src_h > max_height)
276 		out_of_bounds = true;
277 
278 	if (state->src_w > max_width) {
279 		/* If source split is supported, we can go up to 2x
280 		 * the max LM width, but we'd need to stage another
281 		 * hwpipe to the right LM. So, the drm_plane would
282 		 * consist of 2 hwpipes.
283 		 */
284 		if (config->hw->mdp.caps & MDP_CAP_SRC_SPLIT &&
285 		    (state->src_w <= 2 * max_width))
286 			need_right_hwpipe = true;
287 		else
288 			out_of_bounds = true;
289 	}
290 
291 	if (out_of_bounds) {
292 		struct drm_rect src = drm_plane_state_src(state);
293 		DBG("Invalid source size "DRM_RECT_FP_FMT,
294 				DRM_RECT_FP_ARG(&src));
295 		return -ERANGE;
296 	}
297 
298 	min_scale = FRAC_16_16(1, 8);
299 	max_scale = FRAC_16_16(8, 1);
300 
301 	ret = drm_atomic_helper_check_plane_state(state, crtc_state,
302 						  min_scale, max_scale,
303 						  true, true);
304 	if (ret)
305 		return ret;
306 
307 	if (plane_enabled(state)) {
308 		unsigned int rotation;
309 		const struct mdp_format *format;
310 		struct mdp5_kms *mdp5_kms = get_kms(plane);
311 		uint32_t blkcfg = 0;
312 
313 		format = to_mdp_format(msm_framebuffer_format(state->fb));
314 		if (MDP_FORMAT_IS_YUV(format))
315 			caps |= MDP_PIPE_CAP_SCALE | MDP_PIPE_CAP_CSC;
316 
317 		if (((state->src_w >> 16) != state->crtc_w) ||
318 				((state->src_h >> 16) != state->crtc_h))
319 			caps |= MDP_PIPE_CAP_SCALE;
320 
321 		rotation = drm_rotation_simplify(state->rotation,
322 						 DRM_MODE_ROTATE_0 |
323 						 DRM_MODE_REFLECT_X |
324 						 DRM_MODE_REFLECT_Y);
325 
326 		if (rotation & DRM_MODE_REFLECT_X)
327 			caps |= MDP_PIPE_CAP_HFLIP;
328 
329 		if (rotation & DRM_MODE_REFLECT_Y)
330 			caps |= MDP_PIPE_CAP_VFLIP;
331 
332 		if (plane->type == DRM_PLANE_TYPE_CURSOR)
333 			caps |= MDP_PIPE_CAP_CURSOR;
334 
335 		/* (re)allocate hw pipe if we don't have one or caps-mismatch: */
336 		if (!mdp5_state->hwpipe || (caps & ~mdp5_state->hwpipe->caps))
337 			new_hwpipe = true;
338 
339 		/*
340 		 * (re)allocte hw pipe if we're either requesting for 2 hw pipes
341 		 * or we're switching from 2 hw pipes to 1 hw pipe because the
342 		 * new src_w can be supported by 1 hw pipe itself.
343 		 */
344 		if ((need_right_hwpipe && !mdp5_state->r_hwpipe) ||
345 		    (!need_right_hwpipe && mdp5_state->r_hwpipe))
346 			new_hwpipe = true;
347 
348 		if (mdp5_kms->smp) {
349 			const struct mdp_format *format =
350 				to_mdp_format(msm_framebuffer_format(state->fb));
351 
352 			blkcfg = mdp5_smp_calculate(mdp5_kms->smp, format,
353 					state->src_w >> 16, false);
354 
355 			if (mdp5_state->hwpipe && (mdp5_state->hwpipe->blkcfg != blkcfg))
356 				new_hwpipe = true;
357 		}
358 
359 		/* (re)assign hwpipe if needed, otherwise keep old one: */
360 		if (new_hwpipe) {
361 			/* TODO maybe we want to re-assign hwpipe sometimes
362 			 * in cases when we no-longer need some caps to make
363 			 * it available for other planes?
364 			 */
365 			struct mdp5_hw_pipe *old_hwpipe = mdp5_state->hwpipe;
366 			struct mdp5_hw_pipe *old_right_hwpipe =
367 							  mdp5_state->r_hwpipe;
368 			struct mdp5_hw_pipe *new_hwpipe = NULL;
369 			struct mdp5_hw_pipe *new_right_hwpipe = NULL;
370 
371 			ret = mdp5_pipe_assign(state->state, plane, caps,
372 					       blkcfg, &new_hwpipe,
373 					       need_right_hwpipe ?
374 					       &new_right_hwpipe : NULL);
375 			if (ret) {
376 				DBG("%s: failed to assign hwpipe(s)!",
377 				    plane->name);
378 				return ret;
379 			}
380 
381 			mdp5_state->hwpipe = new_hwpipe;
382 			if (need_right_hwpipe)
383 				mdp5_state->r_hwpipe = new_right_hwpipe;
384 			else
385 				/*
386 				 * set it to NULL so that the driver knows we
387 				 * don't have a right hwpipe when committing a
388 				 * new state
389 				 */
390 				mdp5_state->r_hwpipe = NULL;
391 
392 
393 			mdp5_pipe_release(state->state, old_hwpipe);
394 			mdp5_pipe_release(state->state, old_right_hwpipe);
395 		}
396 	} else {
397 		mdp5_pipe_release(state->state, mdp5_state->hwpipe);
398 		mdp5_pipe_release(state->state, mdp5_state->r_hwpipe);
399 		mdp5_state->hwpipe = mdp5_state->r_hwpipe = NULL;
400 	}
401 
402 	return 0;
403 }
404 
mdp5_plane_atomic_check(struct drm_plane * plane,struct drm_plane_state * state)405 static int mdp5_plane_atomic_check(struct drm_plane *plane,
406 				   struct drm_plane_state *state)
407 {
408 	struct drm_crtc *crtc;
409 	struct drm_crtc_state *crtc_state;
410 
411 	crtc = state->crtc ? state->crtc : plane->state->crtc;
412 	if (!crtc)
413 		return 0;
414 
415 	crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc);
416 	if (WARN_ON(!crtc_state))
417 		return -EINVAL;
418 
419 	return mdp5_plane_atomic_check_with_state(crtc_state, state);
420 }
421 
mdp5_plane_atomic_update(struct drm_plane * plane,struct drm_plane_state * old_state)422 static void mdp5_plane_atomic_update(struct drm_plane *plane,
423 				     struct drm_plane_state *old_state)
424 {
425 	struct drm_plane_state *state = plane->state;
426 
427 	DBG("%s: update", plane->name);
428 
429 	if (plane_enabled(state)) {
430 		int ret;
431 
432 		ret = mdp5_plane_mode_set(plane,
433 				state->crtc, state->fb,
434 				&state->src, &state->dst);
435 		/* atomic_check should have ensured that this doesn't fail */
436 		WARN_ON(ret < 0);
437 	}
438 }
439 
mdp5_plane_atomic_async_check(struct drm_plane * plane,struct drm_plane_state * state)440 static int mdp5_plane_atomic_async_check(struct drm_plane *plane,
441 					 struct drm_plane_state *state)
442 {
443 	struct mdp5_plane_state *mdp5_state = to_mdp5_plane_state(state);
444 	struct drm_crtc_state *crtc_state;
445 	int min_scale, max_scale;
446 	int ret;
447 
448 	crtc_state = drm_atomic_get_existing_crtc_state(state->state,
449 							state->crtc);
450 	if (WARN_ON(!crtc_state))
451 		return -EINVAL;
452 
453 	if (!crtc_state->active)
454 		return -EINVAL;
455 
456 	mdp5_state = to_mdp5_plane_state(state);
457 
458 	/* don't use fast path if we don't have a hwpipe allocated yet */
459 	if (!mdp5_state->hwpipe)
460 		return -EINVAL;
461 
462 	/* only allow changing of position(crtc x/y or src x/y) in fast path */
463 	if (plane->state->crtc != state->crtc ||
464 	    plane->state->src_w != state->src_w ||
465 	    plane->state->src_h != state->src_h ||
466 	    plane->state->crtc_w != state->crtc_w ||
467 	    plane->state->crtc_h != state->crtc_h ||
468 	    !plane->state->fb ||
469 	    plane->state->fb != state->fb)
470 		return -EINVAL;
471 
472 	min_scale = FRAC_16_16(1, 8);
473 	max_scale = FRAC_16_16(8, 1);
474 
475 	ret = drm_atomic_helper_check_plane_state(state, crtc_state,
476 						  min_scale, max_scale,
477 						  true, true);
478 	if (ret)
479 		return ret;
480 
481 	/*
482 	 * if the visibility of the plane changes (i.e, if the cursor is
483 	 * clipped out completely, we can't take the async path because
484 	 * we need to stage/unstage the plane from the Layer Mixer(s). We
485 	 * also assign/unassign the hwpipe(s) tied to the plane. We avoid
486 	 * taking the fast path for both these reasons.
487 	 */
488 	if (state->visible != plane->state->visible)
489 		return -EINVAL;
490 
491 	return 0;
492 }
493 
mdp5_plane_atomic_async_update(struct drm_plane * plane,struct drm_plane_state * new_state)494 static void mdp5_plane_atomic_async_update(struct drm_plane *plane,
495 					   struct drm_plane_state *new_state)
496 {
497 	struct drm_framebuffer *old_fb = plane->state->fb;
498 
499 	plane->state->src_x = new_state->src_x;
500 	plane->state->src_y = new_state->src_y;
501 	plane->state->crtc_x = new_state->crtc_x;
502 	plane->state->crtc_y = new_state->crtc_y;
503 
504 	if (plane_enabled(new_state)) {
505 		struct mdp5_ctl *ctl;
506 		struct mdp5_pipeline *pipeline =
507 					mdp5_crtc_get_pipeline(new_state->crtc);
508 		int ret;
509 
510 		ret = mdp5_plane_mode_set(plane, new_state->crtc, new_state->fb,
511 				&new_state->src, &new_state->dst);
512 		WARN_ON(ret < 0);
513 
514 		ctl = mdp5_crtc_get_ctl(new_state->crtc);
515 
516 		mdp5_ctl_commit(ctl, pipeline, mdp5_plane_get_flush(plane), true);
517 	}
518 
519 	*to_mdp5_plane_state(plane->state) =
520 		*to_mdp5_plane_state(new_state);
521 
522 	new_state->fb = old_fb;
523 }
524 
525 static const struct drm_plane_helper_funcs mdp5_plane_helper_funcs = {
526 		.prepare_fb = msm_atomic_prepare_fb,
527 		.cleanup_fb = mdp5_plane_cleanup_fb,
528 		.atomic_check = mdp5_plane_atomic_check,
529 		.atomic_update = mdp5_plane_atomic_update,
530 		.atomic_async_check = mdp5_plane_atomic_async_check,
531 		.atomic_async_update = mdp5_plane_atomic_async_update,
532 };
533 
set_scanout_locked(struct mdp5_kms * mdp5_kms,enum mdp5_pipe pipe,struct drm_framebuffer * fb)534 static void set_scanout_locked(struct mdp5_kms *mdp5_kms,
535 			       enum mdp5_pipe pipe,
536 			       struct drm_framebuffer *fb)
537 {
538 	struct msm_kms *kms = &mdp5_kms->base.base;
539 
540 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_A(pipe),
541 			MDP5_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
542 			MDP5_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
543 
544 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_B(pipe),
545 			MDP5_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) |
546 			MDP5_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
547 
548 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC0_ADDR(pipe),
549 			msm_framebuffer_iova(fb, kms->aspace, 0));
550 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC1_ADDR(pipe),
551 			msm_framebuffer_iova(fb, kms->aspace, 1));
552 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC2_ADDR(pipe),
553 			msm_framebuffer_iova(fb, kms->aspace, 2));
554 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC3_ADDR(pipe),
555 			msm_framebuffer_iova(fb, kms->aspace, 3));
556 }
557 
558 /* Note: mdp5_plane->pipe_lock must be locked */
csc_disable(struct mdp5_kms * mdp5_kms,enum mdp5_pipe pipe)559 static void csc_disable(struct mdp5_kms *mdp5_kms, enum mdp5_pipe pipe)
560 {
561 	uint32_t value = mdp5_read(mdp5_kms, REG_MDP5_PIPE_OP_MODE(pipe)) &
562 			 ~MDP5_PIPE_OP_MODE_CSC_1_EN;
563 
564 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_OP_MODE(pipe), value);
565 }
566 
567 /* Note: mdp5_plane->pipe_lock must be locked */
csc_enable(struct mdp5_kms * mdp5_kms,enum mdp5_pipe pipe,struct csc_cfg * csc)568 static void csc_enable(struct mdp5_kms *mdp5_kms, enum mdp5_pipe pipe,
569 		struct csc_cfg *csc)
570 {
571 	uint32_t  i, mode = 0; /* RGB, no CSC */
572 	uint32_t *matrix;
573 
574 	if (unlikely(!csc))
575 		return;
576 
577 	if ((csc->type == CSC_YUV2RGB) || (CSC_YUV2YUV == csc->type))
578 		mode |= MDP5_PIPE_OP_MODE_CSC_SRC_DATA_FORMAT(DATA_FORMAT_YUV);
579 	if ((csc->type == CSC_RGB2YUV) || (CSC_YUV2YUV == csc->type))
580 		mode |= MDP5_PIPE_OP_MODE_CSC_DST_DATA_FORMAT(DATA_FORMAT_YUV);
581 	mode |= MDP5_PIPE_OP_MODE_CSC_1_EN;
582 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_OP_MODE(pipe), mode);
583 
584 	matrix = csc->matrix;
585 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_0(pipe),
586 			MDP5_PIPE_CSC_1_MATRIX_COEFF_0_COEFF_11(matrix[0]) |
587 			MDP5_PIPE_CSC_1_MATRIX_COEFF_0_COEFF_12(matrix[1]));
588 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_1(pipe),
589 			MDP5_PIPE_CSC_1_MATRIX_COEFF_1_COEFF_13(matrix[2]) |
590 			MDP5_PIPE_CSC_1_MATRIX_COEFF_1_COEFF_21(matrix[3]));
591 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_2(pipe),
592 			MDP5_PIPE_CSC_1_MATRIX_COEFF_2_COEFF_22(matrix[4]) |
593 			MDP5_PIPE_CSC_1_MATRIX_COEFF_2_COEFF_23(matrix[5]));
594 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_3(pipe),
595 			MDP5_PIPE_CSC_1_MATRIX_COEFF_3_COEFF_31(matrix[6]) |
596 			MDP5_PIPE_CSC_1_MATRIX_COEFF_3_COEFF_32(matrix[7]));
597 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_MATRIX_COEFF_4(pipe),
598 			MDP5_PIPE_CSC_1_MATRIX_COEFF_4_COEFF_33(matrix[8]));
599 
600 	for (i = 0; i < ARRAY_SIZE(csc->pre_bias); i++) {
601 		uint32_t *pre_clamp = csc->pre_clamp;
602 		uint32_t *post_clamp = csc->post_clamp;
603 
604 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_PRE_CLAMP(pipe, i),
605 			MDP5_PIPE_CSC_1_PRE_CLAMP_REG_HIGH(pre_clamp[2*i+1]) |
606 			MDP5_PIPE_CSC_1_PRE_CLAMP_REG_LOW(pre_clamp[2*i]));
607 
608 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_POST_CLAMP(pipe, i),
609 			MDP5_PIPE_CSC_1_POST_CLAMP_REG_HIGH(post_clamp[2*i+1]) |
610 			MDP5_PIPE_CSC_1_POST_CLAMP_REG_LOW(post_clamp[2*i]));
611 
612 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_PRE_BIAS(pipe, i),
613 			MDP5_PIPE_CSC_1_PRE_BIAS_REG_VALUE(csc->pre_bias[i]));
614 
615 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_CSC_1_POST_BIAS(pipe, i),
616 			MDP5_PIPE_CSC_1_POST_BIAS_REG_VALUE(csc->post_bias[i]));
617 	}
618 }
619 
620 #define PHASE_STEP_SHIFT	21
621 #define DOWN_SCALE_RATIO_MAX	32	/* 2^(26-21) */
622 
calc_phase_step(uint32_t src,uint32_t dst,uint32_t * out_phase)623 static int calc_phase_step(uint32_t src, uint32_t dst, uint32_t *out_phase)
624 {
625 	uint32_t unit;
626 
627 	if (src == 0 || dst == 0)
628 		return -EINVAL;
629 
630 	/*
631 	 * PHASE_STEP_X/Y is coded on 26 bits (25:0),
632 	 * where 2^21 represents the unity "1" in fixed-point hardware design.
633 	 * This leaves 5 bits for the integer part (downscale case):
634 	 *	-> maximum downscale ratio = 0b1_1111 = 31
635 	 */
636 	if (src > (dst * DOWN_SCALE_RATIO_MAX))
637 		return -EOVERFLOW;
638 
639 	unit = 1 << PHASE_STEP_SHIFT;
640 	*out_phase = mult_frac(unit, src, dst);
641 
642 	return 0;
643 }
644 
calc_scalex_steps(struct drm_plane * plane,uint32_t pixel_format,uint32_t src,uint32_t dest,uint32_t phasex_steps[COMP_MAX])645 static int calc_scalex_steps(struct drm_plane *plane,
646 		uint32_t pixel_format, uint32_t src, uint32_t dest,
647 		uint32_t phasex_steps[COMP_MAX])
648 {
649 	const struct drm_format_info *info = drm_format_info(pixel_format);
650 	struct mdp5_kms *mdp5_kms = get_kms(plane);
651 	struct device *dev = mdp5_kms->dev->dev;
652 	uint32_t phasex_step;
653 	int ret;
654 
655 	ret = calc_phase_step(src, dest, &phasex_step);
656 	if (ret) {
657 		DRM_DEV_ERROR(dev, "X scaling (%d->%d) failed: %d\n", src, dest, ret);
658 		return ret;
659 	}
660 
661 	phasex_steps[COMP_0]   = phasex_step;
662 	phasex_steps[COMP_3]   = phasex_step;
663 	phasex_steps[COMP_1_2] = phasex_step / info->hsub;
664 
665 	return 0;
666 }
667 
calc_scaley_steps(struct drm_plane * plane,uint32_t pixel_format,uint32_t src,uint32_t dest,uint32_t phasey_steps[COMP_MAX])668 static int calc_scaley_steps(struct drm_plane *plane,
669 		uint32_t pixel_format, uint32_t src, uint32_t dest,
670 		uint32_t phasey_steps[COMP_MAX])
671 {
672 	const struct drm_format_info *info = drm_format_info(pixel_format);
673 	struct mdp5_kms *mdp5_kms = get_kms(plane);
674 	struct device *dev = mdp5_kms->dev->dev;
675 	uint32_t phasey_step;
676 	int ret;
677 
678 	ret = calc_phase_step(src, dest, &phasey_step);
679 	if (ret) {
680 		DRM_DEV_ERROR(dev, "Y scaling (%d->%d) failed: %d\n", src, dest, ret);
681 		return ret;
682 	}
683 
684 	phasey_steps[COMP_0]   = phasey_step;
685 	phasey_steps[COMP_3]   = phasey_step;
686 	phasey_steps[COMP_1_2] = phasey_step / info->vsub;
687 
688 	return 0;
689 }
690 
get_scale_config(const struct mdp_format * format,uint32_t src,uint32_t dst,bool horz)691 static uint32_t get_scale_config(const struct mdp_format *format,
692 		uint32_t src, uint32_t dst, bool horz)
693 {
694 	const struct drm_format_info *info = drm_format_info(format->base.pixel_format);
695 	bool scaling = format->is_yuv ? true : (src != dst);
696 	uint32_t sub;
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 ? info->hsub : info->vsub;
705 		uv_filter = ((src / sub) <= dst) ?
706 				   SCALE_FILTER_BIL : SCALE_FILTER_PCMN;
707 	}
708 	ya_filter = (src <= dst) ? SCALE_FILTER_BIL : SCALE_FILTER_PCMN;
709 
710 	if (horz)
711 		return  MDP5_PIPE_SCALE_CONFIG_SCALEX_EN |
712 			MDP5_PIPE_SCALE_CONFIG_SCALEX_FILTER_COMP_0(ya_filter) |
713 			MDP5_PIPE_SCALE_CONFIG_SCALEX_FILTER_COMP_3(ya_filter) |
714 			COND(yuv, MDP5_PIPE_SCALE_CONFIG_SCALEX_FILTER_COMP_1_2(uv_filter));
715 	else
716 		return  MDP5_PIPE_SCALE_CONFIG_SCALEY_EN |
717 			MDP5_PIPE_SCALE_CONFIG_SCALEY_FILTER_COMP_0(ya_filter) |
718 			MDP5_PIPE_SCALE_CONFIG_SCALEY_FILTER_COMP_3(ya_filter) |
719 			COND(yuv, MDP5_PIPE_SCALE_CONFIG_SCALEY_FILTER_COMP_1_2(uv_filter));
720 }
721 
calc_pixel_ext(const struct mdp_format * format,uint32_t src,uint32_t dst,uint32_t phase_step[2],int pix_ext_edge1[COMP_MAX],int pix_ext_edge2[COMP_MAX],bool horz)722 static void calc_pixel_ext(const struct mdp_format *format,
723 		uint32_t src, uint32_t dst, uint32_t phase_step[2],
724 		int pix_ext_edge1[COMP_MAX], int pix_ext_edge2[COMP_MAX],
725 		bool horz)
726 {
727 	bool scaling = format->is_yuv ? true : (src != dst);
728 	int i;
729 
730 	/*
731 	 * Note:
732 	 * We assume here that:
733 	 *     1. PCMN filter is used for downscale
734 	 *     2. bilinear filter is used for upscale
735 	 *     3. we are in a single pipe configuration
736 	 */
737 
738 	for (i = 0; i < COMP_MAX; i++) {
739 		pix_ext_edge1[i] = 0;
740 		pix_ext_edge2[i] = scaling ? 1 : 0;
741 	}
742 }
743 
mdp5_write_pixel_ext(struct mdp5_kms * mdp5_kms,enum mdp5_pipe pipe,const struct mdp_format * format,uint32_t src_w,int pe_left[COMP_MAX],int pe_right[COMP_MAX],uint32_t src_h,int pe_top[COMP_MAX],int pe_bottom[COMP_MAX])744 static void mdp5_write_pixel_ext(struct mdp5_kms *mdp5_kms, enum mdp5_pipe pipe,
745 	const struct mdp_format *format,
746 	uint32_t src_w, int pe_left[COMP_MAX], int pe_right[COMP_MAX],
747 	uint32_t src_h, int pe_top[COMP_MAX], int pe_bottom[COMP_MAX])
748 {
749 	const struct drm_format_info *info = drm_format_info(format->base.pixel_format);
750 	uint32_t lr, tb, req;
751 	int i;
752 
753 	for (i = 0; i < COMP_MAX; i++) {
754 		uint32_t roi_w = src_w;
755 		uint32_t roi_h = src_h;
756 
757 		if (format->is_yuv && i == COMP_1_2) {
758 			roi_w /= info->hsub;
759 			roi_h /= info->vsub;
760 		}
761 
762 		lr  = (pe_left[i] >= 0) ?
763 			MDP5_PIPE_SW_PIX_EXT_LR_LEFT_RPT(pe_left[i]) :
764 			MDP5_PIPE_SW_PIX_EXT_LR_LEFT_OVF(pe_left[i]);
765 
766 		lr |= (pe_right[i] >= 0) ?
767 			MDP5_PIPE_SW_PIX_EXT_LR_RIGHT_RPT(pe_right[i]) :
768 			MDP5_PIPE_SW_PIX_EXT_LR_RIGHT_OVF(pe_right[i]);
769 
770 		tb  = (pe_top[i] >= 0) ?
771 			MDP5_PIPE_SW_PIX_EXT_TB_TOP_RPT(pe_top[i]) :
772 			MDP5_PIPE_SW_PIX_EXT_TB_TOP_OVF(pe_top[i]);
773 
774 		tb |= (pe_bottom[i] >= 0) ?
775 			MDP5_PIPE_SW_PIX_EXT_TB_BOTTOM_RPT(pe_bottom[i]) :
776 			MDP5_PIPE_SW_PIX_EXT_TB_BOTTOM_OVF(pe_bottom[i]);
777 
778 		req  = MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS_LEFT_RIGHT(roi_w +
779 				pe_left[i] + pe_right[i]);
780 
781 		req |= MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS_TOP_BOTTOM(roi_h +
782 				pe_top[i] + pe_bottom[i]);
783 
784 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SW_PIX_EXT_LR(pipe, i), lr);
785 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SW_PIX_EXT_TB(pipe, i), tb);
786 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS(pipe, i), req);
787 
788 		DBG("comp-%d (L/R): rpt=%d/%d, ovf=%d/%d, req=%d", i,
789 			FIELD(lr,  MDP5_PIPE_SW_PIX_EXT_LR_LEFT_RPT),
790 			FIELD(lr,  MDP5_PIPE_SW_PIX_EXT_LR_RIGHT_RPT),
791 			FIELD(lr,  MDP5_PIPE_SW_PIX_EXT_LR_LEFT_OVF),
792 			FIELD(lr,  MDP5_PIPE_SW_PIX_EXT_LR_RIGHT_OVF),
793 			FIELD(req, MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS_LEFT_RIGHT));
794 
795 		DBG("comp-%d (T/B): rpt=%d/%d, ovf=%d/%d, req=%d", i,
796 			FIELD(tb,  MDP5_PIPE_SW_PIX_EXT_TB_TOP_RPT),
797 			FIELD(tb,  MDP5_PIPE_SW_PIX_EXT_TB_BOTTOM_RPT),
798 			FIELD(tb,  MDP5_PIPE_SW_PIX_EXT_TB_TOP_OVF),
799 			FIELD(tb,  MDP5_PIPE_SW_PIX_EXT_TB_BOTTOM_OVF),
800 			FIELD(req, MDP5_PIPE_SW_PIX_EXT_REQ_PIXELS_TOP_BOTTOM));
801 	}
802 }
803 
804 struct pixel_ext {
805 	int left[COMP_MAX];
806 	int right[COMP_MAX];
807 	int top[COMP_MAX];
808 	int bottom[COMP_MAX];
809 };
810 
811 struct phase_step {
812 	u32 x[COMP_MAX];
813 	u32 y[COMP_MAX];
814 };
815 
mdp5_hwpipe_mode_set(struct mdp5_kms * mdp5_kms,struct mdp5_hw_pipe * hwpipe,struct drm_framebuffer * fb,struct phase_step * step,struct pixel_ext * pe,u32 scale_config,u32 hdecm,u32 vdecm,bool hflip,bool vflip,int crtc_x,int crtc_y,unsigned int crtc_w,unsigned int crtc_h,u32 src_img_w,u32 src_img_h,u32 src_x,u32 src_y,u32 src_w,u32 src_h)816 static void mdp5_hwpipe_mode_set(struct mdp5_kms *mdp5_kms,
817 				 struct mdp5_hw_pipe *hwpipe,
818 				 struct drm_framebuffer *fb,
819 				 struct phase_step *step,
820 				 struct pixel_ext *pe,
821 				 u32 scale_config, u32 hdecm, u32 vdecm,
822 				 bool hflip, bool vflip,
823 				 int crtc_x, int crtc_y,
824 				 unsigned int crtc_w, unsigned int crtc_h,
825 				 u32 src_img_w, u32 src_img_h,
826 				 u32 src_x, u32 src_y,
827 				 u32 src_w, u32 src_h)
828 {
829 	enum mdp5_pipe pipe = hwpipe->pipe;
830 	bool has_pe = hwpipe->caps & MDP_PIPE_CAP_SW_PIX_EXT;
831 	const struct mdp_format *format =
832 			to_mdp_format(msm_framebuffer_format(fb));
833 
834 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_IMG_SIZE(pipe),
835 			MDP5_PIPE_SRC_IMG_SIZE_WIDTH(src_img_w) |
836 			MDP5_PIPE_SRC_IMG_SIZE_HEIGHT(src_img_h));
837 
838 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_SIZE(pipe),
839 			MDP5_PIPE_SRC_SIZE_WIDTH(src_w) |
840 			MDP5_PIPE_SRC_SIZE_HEIGHT(src_h));
841 
842 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_XY(pipe),
843 			MDP5_PIPE_SRC_XY_X(src_x) |
844 			MDP5_PIPE_SRC_XY_Y(src_y));
845 
846 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_OUT_SIZE(pipe),
847 			MDP5_PIPE_OUT_SIZE_WIDTH(crtc_w) |
848 			MDP5_PIPE_OUT_SIZE_HEIGHT(crtc_h));
849 
850 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_OUT_XY(pipe),
851 			MDP5_PIPE_OUT_XY_X(crtc_x) |
852 			MDP5_PIPE_OUT_XY_Y(crtc_y));
853 
854 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_FORMAT(pipe),
855 			MDP5_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) |
856 			MDP5_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) |
857 			MDP5_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) |
858 			MDP5_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) |
859 			COND(format->alpha_enable, MDP5_PIPE_SRC_FORMAT_ALPHA_ENABLE) |
860 			MDP5_PIPE_SRC_FORMAT_CPP(format->cpp - 1) |
861 			MDP5_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
862 			COND(format->unpack_tight, MDP5_PIPE_SRC_FORMAT_UNPACK_TIGHT) |
863 			MDP5_PIPE_SRC_FORMAT_FETCH_TYPE(format->fetch_type) |
864 			MDP5_PIPE_SRC_FORMAT_CHROMA_SAMP(format->chroma_sample));
865 
866 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_UNPACK(pipe),
867 			MDP5_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) |
868 			MDP5_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) |
869 			MDP5_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) |
870 			MDP5_PIPE_SRC_UNPACK_ELEM3(format->unpack[3]));
871 
872 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_OP_MODE(pipe),
873 			(hflip ? MDP5_PIPE_SRC_OP_MODE_FLIP_LR : 0) |
874 			(vflip ? MDP5_PIPE_SRC_OP_MODE_FLIP_UD : 0) |
875 			COND(has_pe, MDP5_PIPE_SRC_OP_MODE_SW_PIX_EXT_OVERRIDE) |
876 			MDP5_PIPE_SRC_OP_MODE_BWC(BWC_LOSSLESS));
877 
878 	/* not using secure mode: */
879 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_ADDR_SW_STATUS(pipe), 0);
880 
881 	if (hwpipe->caps & MDP_PIPE_CAP_SW_PIX_EXT)
882 		mdp5_write_pixel_ext(mdp5_kms, pipe, format,
883 				src_w, pe->left, pe->right,
884 				src_h, pe->top, pe->bottom);
885 
886 	if (hwpipe->caps & MDP_PIPE_CAP_SCALE) {
887 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_PHASE_STEP_X(pipe),
888 				step->x[COMP_0]);
889 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_PHASE_STEP_Y(pipe),
890 				step->y[COMP_0]);
891 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_CR_PHASE_STEP_X(pipe),
892 				step->x[COMP_1_2]);
893 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_CR_PHASE_STEP_Y(pipe),
894 				step->y[COMP_1_2]);
895 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_DECIMATION(pipe),
896 				MDP5_PIPE_DECIMATION_VERT(vdecm) |
897 				MDP5_PIPE_DECIMATION_HORZ(hdecm));
898 		mdp5_write(mdp5_kms, REG_MDP5_PIPE_SCALE_CONFIG(pipe),
899 			   scale_config);
900 	}
901 
902 	if (hwpipe->caps & MDP_PIPE_CAP_CSC) {
903 		if (MDP_FORMAT_IS_YUV(format))
904 			csc_enable(mdp5_kms, pipe,
905 					mdp_get_default_csc_cfg(CSC_YUV2RGB));
906 		else
907 			csc_disable(mdp5_kms, pipe);
908 	}
909 
910 	set_scanout_locked(mdp5_kms, pipe, fb);
911 }
912 
mdp5_plane_mode_set(struct drm_plane * plane,struct drm_crtc * crtc,struct drm_framebuffer * fb,struct drm_rect * src,struct drm_rect * dest)913 static int mdp5_plane_mode_set(struct drm_plane *plane,
914 		struct drm_crtc *crtc, struct drm_framebuffer *fb,
915 		struct drm_rect *src, struct drm_rect *dest)
916 {
917 	struct drm_plane_state *pstate = plane->state;
918 	struct mdp5_hw_pipe *hwpipe = to_mdp5_plane_state(pstate)->hwpipe;
919 	struct mdp5_kms *mdp5_kms = get_kms(plane);
920 	enum mdp5_pipe pipe = hwpipe->pipe;
921 	struct mdp5_hw_pipe *right_hwpipe;
922 	const struct mdp_format *format;
923 	uint32_t nplanes, config = 0;
924 	struct phase_step step = { { 0 } };
925 	struct pixel_ext pe = { { 0 } };
926 	uint32_t hdecm = 0, vdecm = 0;
927 	uint32_t pix_format;
928 	unsigned int rotation;
929 	bool vflip, hflip;
930 	int crtc_x, crtc_y;
931 	unsigned int crtc_w, crtc_h;
932 	uint32_t src_x, src_y;
933 	uint32_t src_w, src_h;
934 	uint32_t src_img_w, src_img_h;
935 	int ret;
936 
937 	nplanes = fb->format->num_planes;
938 
939 	/* bad formats should already be rejected: */
940 	if (WARN_ON(nplanes > pipe2nclients(pipe)))
941 		return -EINVAL;
942 
943 	format = to_mdp_format(msm_framebuffer_format(fb));
944 	pix_format = format->base.pixel_format;
945 
946 	src_x = src->x1;
947 	src_y = src->y1;
948 	src_w = drm_rect_width(src);
949 	src_h = drm_rect_height(src);
950 
951 	crtc_x = dest->x1;
952 	crtc_y = dest->y1;
953 	crtc_w = drm_rect_width(dest);
954 	crtc_h = drm_rect_height(dest);
955 
956 	/* src values are in Q16 fixed point, convert to integer: */
957 	src_x = src_x >> 16;
958 	src_y = src_y >> 16;
959 	src_w = src_w >> 16;
960 	src_h = src_h >> 16;
961 
962 	src_img_w = min(fb->width, src_w);
963 	src_img_h = min(fb->height, src_h);
964 
965 	DBG("%s: FB[%u] %u,%u,%u,%u -> CRTC[%u] %d,%d,%u,%u", plane->name,
966 			fb->base.id, src_x, src_y, src_w, src_h,
967 			crtc->base.id, crtc_x, crtc_y, crtc_w, crtc_h);
968 
969 	right_hwpipe = to_mdp5_plane_state(pstate)->r_hwpipe;
970 	if (right_hwpipe) {
971 		/*
972 		 * if the plane comprises of 2 hw pipes, assume that the width
973 		 * is split equally across them. The only parameters that varies
974 		 * between the 2 pipes are src_x and crtc_x
975 		 */
976 		crtc_w /= 2;
977 		src_w /= 2;
978 		src_img_w /= 2;
979 	}
980 
981 	ret = calc_scalex_steps(plane, pix_format, src_w, crtc_w, step.x);
982 	if (ret)
983 		return ret;
984 
985 	ret = calc_scaley_steps(plane, pix_format, src_h, crtc_h, step.y);
986 	if (ret)
987 		return ret;
988 
989 	if (hwpipe->caps & MDP_PIPE_CAP_SW_PIX_EXT) {
990 		calc_pixel_ext(format, src_w, crtc_w, step.x,
991 			       pe.left, pe.right, true);
992 		calc_pixel_ext(format, src_h, crtc_h, step.y,
993 			       pe.top, pe.bottom, false);
994 	}
995 
996 	/* TODO calc hdecm, vdecm */
997 
998 	/* SCALE is used to both scale and up-sample chroma components */
999 	config |= get_scale_config(format, src_w, crtc_w, true);
1000 	config |= get_scale_config(format, src_h, crtc_h, false);
1001 	DBG("scale config = %x", config);
1002 
1003 	rotation = drm_rotation_simplify(pstate->rotation,
1004 					 DRM_MODE_ROTATE_0 |
1005 					 DRM_MODE_REFLECT_X |
1006 					 DRM_MODE_REFLECT_Y);
1007 	hflip = !!(rotation & DRM_MODE_REFLECT_X);
1008 	vflip = !!(rotation & DRM_MODE_REFLECT_Y);
1009 
1010 	mdp5_hwpipe_mode_set(mdp5_kms, hwpipe, fb, &step, &pe,
1011 			     config, hdecm, vdecm, hflip, vflip,
1012 			     crtc_x, crtc_y, crtc_w, crtc_h,
1013 			     src_img_w, src_img_h,
1014 			     src_x, src_y, src_w, src_h);
1015 	if (right_hwpipe)
1016 		mdp5_hwpipe_mode_set(mdp5_kms, right_hwpipe, fb, &step, &pe,
1017 				     config, hdecm, vdecm, hflip, vflip,
1018 				     crtc_x + crtc_w, crtc_y, crtc_w, crtc_h,
1019 				     src_img_w, src_img_h,
1020 				     src_x + src_w, src_y, src_w, src_h);
1021 
1022 	return ret;
1023 }
1024 
1025 /*
1026  * Use this func and the one below only after the atomic state has been
1027  * successfully swapped
1028  */
mdp5_plane_pipe(struct drm_plane * plane)1029 enum mdp5_pipe mdp5_plane_pipe(struct drm_plane *plane)
1030 {
1031 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(plane->state);
1032 
1033 	if (WARN_ON(!pstate->hwpipe))
1034 		return SSPP_NONE;
1035 
1036 	return pstate->hwpipe->pipe;
1037 }
1038 
mdp5_plane_right_pipe(struct drm_plane * plane)1039 enum mdp5_pipe mdp5_plane_right_pipe(struct drm_plane *plane)
1040 {
1041 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(plane->state);
1042 
1043 	if (!pstate->r_hwpipe)
1044 		return SSPP_NONE;
1045 
1046 	return pstate->r_hwpipe->pipe;
1047 }
1048 
mdp5_plane_get_flush(struct drm_plane * plane)1049 uint32_t mdp5_plane_get_flush(struct drm_plane *plane)
1050 {
1051 	struct mdp5_plane_state *pstate = to_mdp5_plane_state(plane->state);
1052 	u32 mask;
1053 
1054 	if (WARN_ON(!pstate->hwpipe))
1055 		return 0;
1056 
1057 	mask = pstate->hwpipe->flush_mask;
1058 
1059 	if (pstate->r_hwpipe)
1060 		mask |= pstate->r_hwpipe->flush_mask;
1061 
1062 	return mask;
1063 }
1064 
1065 /* initialize plane */
mdp5_plane_init(struct drm_device * dev,enum drm_plane_type type)1066 struct drm_plane *mdp5_plane_init(struct drm_device *dev,
1067 				  enum drm_plane_type type)
1068 {
1069 	struct drm_plane *plane = NULL;
1070 	struct mdp5_plane *mdp5_plane;
1071 	int ret;
1072 
1073 	mdp5_plane = kzalloc(sizeof(*mdp5_plane), GFP_KERNEL);
1074 	if (!mdp5_plane) {
1075 		ret = -ENOMEM;
1076 		goto fail;
1077 	}
1078 
1079 	plane = &mdp5_plane->base;
1080 
1081 	mdp5_plane->nformats = mdp_get_formats(mdp5_plane->formats,
1082 		ARRAY_SIZE(mdp5_plane->formats), false);
1083 
1084 	ret = drm_universal_plane_init(dev, plane, 0xff, &mdp5_plane_funcs,
1085 			mdp5_plane->formats, mdp5_plane->nformats,
1086 			NULL, type, NULL);
1087 	if (ret)
1088 		goto fail;
1089 
1090 	drm_plane_helper_add(plane, &mdp5_plane_helper_funcs);
1091 
1092 	mdp5_plane_install_properties(plane, &plane->base);
1093 
1094 	drm_plane_enable_fb_damage_clips(plane);
1095 
1096 	return plane;
1097 
1098 fail:
1099 	if (plane)
1100 		mdp5_plane_destroy(plane);
1101 
1102 	return ERR_PTR(ret);
1103 }
1104