1 /*
2  * Copyright 2016 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #include "dm_services.h"
27 
28 #include "core_types.h"
29 
30 #include "reg_helper.h"
31 #include "dcn10_dpp.h"
32 #include "basics/conversion.h"
33 
34 
35 #define NUM_PHASES    64
36 #define HORZ_MAX_TAPS 8
37 #define VERT_MAX_TAPS 8
38 
39 #define BLACK_OFFSET_RGB_Y 0x0
40 #define BLACK_OFFSET_CBCR  0x8000
41 
42 #define VISUAL_CONFIRM_RECT_HEIGHT_DEFAULT 3
43 #define VISUAL_CONFIRM_RECT_HEIGHT_MIN 1
44 #define VISUAL_CONFIRM_RECT_HEIGHT_MAX 10
45 
46 #define REG(reg)\
47 	dpp->tf_regs->reg
48 
49 #define CTX \
50 	dpp->base.ctx
51 
52 #undef FN
53 #define FN(reg_name, field_name) \
54 	dpp->tf_shift->field_name, dpp->tf_mask->field_name
55 
56 enum dcn10_coef_filter_type_sel {
57 	SCL_COEF_LUMA_VERT_FILTER = 0,
58 	SCL_COEF_LUMA_HORZ_FILTER = 1,
59 	SCL_COEF_CHROMA_VERT_FILTER = 2,
60 	SCL_COEF_CHROMA_HORZ_FILTER = 3,
61 	SCL_COEF_ALPHA_VERT_FILTER = 4,
62 	SCL_COEF_ALPHA_HORZ_FILTER = 5
63 };
64 
65 enum dscl_autocal_mode {
66 	AUTOCAL_MODE_OFF = 0,
67 
68 	/* Autocal calculate the scaling ratio and initial phase and the
69 	 * DSCL_MODE_SEL must be set to 1
70 	 */
71 	AUTOCAL_MODE_AUTOSCALE = 1,
72 	/* Autocal perform auto centering without replication and the
73 	 * DSCL_MODE_SEL must be set to 0
74 	 */
75 	AUTOCAL_MODE_AUTOCENTER = 2,
76 	/* Autocal perform auto centering and auto replication and the
77 	 * DSCL_MODE_SEL must be set to 0
78 	 */
79 	AUTOCAL_MODE_AUTOREPLICATE = 3
80 };
81 
82 enum dscl_mode_sel {
83 	DSCL_MODE_SCALING_444_BYPASS = 0,
84 	DSCL_MODE_SCALING_444_RGB_ENABLE = 1,
85 	DSCL_MODE_SCALING_444_YCBCR_ENABLE = 2,
86 	DSCL_MODE_SCALING_420_YCBCR_ENABLE = 3,
87 	DSCL_MODE_SCALING_420_LUMA_BYPASS = 4,
88 	DSCL_MODE_SCALING_420_CHROMA_BYPASS = 5,
89 	DSCL_MODE_DSCL_BYPASS = 6
90 };
91 
92 static int dpp1_dscl_get_pixel_depth_val(enum lb_pixel_depth depth)
93 {
94 	if (depth == LB_PIXEL_DEPTH_30BPP)
95 		return 0; /* 10 bpc */
96 	else if (depth == LB_PIXEL_DEPTH_24BPP)
97 		return 1; /* 8 bpc */
98 	else if (depth == LB_PIXEL_DEPTH_18BPP)
99 		return 2; /* 6 bpc */
100 	else if (depth == LB_PIXEL_DEPTH_36BPP)
101 		return 3; /* 12 bpc */
102 	else {
103 		ASSERT(0);
104 		return -1; /* Unsupported */
105 	}
106 }
107 
108 static bool dpp1_dscl_is_video_format(enum pixel_format format)
109 {
110 	if (format >= PIXEL_FORMAT_VIDEO_BEGIN
111 			&& format <= PIXEL_FORMAT_VIDEO_END)
112 		return true;
113 	else
114 		return false;
115 }
116 
117 static bool dpp1_dscl_is_420_format(enum pixel_format format)
118 {
119 	if (format == PIXEL_FORMAT_420BPP8 ||
120 			format == PIXEL_FORMAT_420BPP10)
121 		return true;
122 	else
123 		return false;
124 }
125 
126 static enum dscl_mode_sel dpp1_dscl_get_dscl_mode(
127 		struct dpp *dpp_base,
128 		const struct scaler_data *data,
129 		bool dbg_always_scale)
130 {
131 	const long long one = dc_fixpt_one.value;
132 
133 	if (dpp_base->caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
134 		/* DSCL is processing data in fixed format */
135 		if (data->format == PIXEL_FORMAT_FP16)
136 			return DSCL_MODE_DSCL_BYPASS;
137 	}
138 
139 	if (data->ratios.horz.value == one
140 			&& data->ratios.vert.value == one
141 			&& data->ratios.horz_c.value == one
142 			&& data->ratios.vert_c.value == one
143 			&& !dbg_always_scale)
144 		return DSCL_MODE_SCALING_444_BYPASS;
145 
146 	if (!dpp1_dscl_is_420_format(data->format)) {
147 		if (dpp1_dscl_is_video_format(data->format))
148 			return DSCL_MODE_SCALING_444_YCBCR_ENABLE;
149 		else
150 			return DSCL_MODE_SCALING_444_RGB_ENABLE;
151 	}
152 	if (data->ratios.horz.value == one && data->ratios.vert.value == one)
153 		return DSCL_MODE_SCALING_420_LUMA_BYPASS;
154 	if (data->ratios.horz_c.value == one && data->ratios.vert_c.value == one)
155 		return DSCL_MODE_SCALING_420_CHROMA_BYPASS;
156 
157 	return DSCL_MODE_SCALING_420_YCBCR_ENABLE;
158 }
159 
160 static void dpp1_power_on_dscl(
161 	struct dpp *dpp_base,
162 	bool power_on)
163 {
164 	struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
165 
166 	if (dpp->tf_regs->DSCL_MEM_PWR_CTRL) {
167 		if (power_on) {
168 			REG_UPDATE(DSCL_MEM_PWR_CTRL, LUT_MEM_PWR_FORCE, 0);
169 			REG_WAIT(DSCL_MEM_PWR_STATUS, LUT_MEM_PWR_STATE, 0, 1, 5);
170 		} else {
171 			if (dpp->base.ctx->dc->debug.enable_mem_low_power.bits.dscl) {
172 				dpp->base.ctx->dc->optimized_required = true;
173 				dpp->base.deferred_reg_writes.bits.disable_dscl = true;
174 			} else {
175 				REG_UPDATE(DSCL_MEM_PWR_CTRL, LUT_MEM_PWR_FORCE, 3);
176 			}
177 		}
178 	}
179 }
180 
181 
182 static void dpp1_dscl_set_lb(
183 	struct dcn10_dpp *dpp,
184 	const struct line_buffer_params *lb_params,
185 	enum lb_memory_config mem_size_config)
186 {
187 	uint32_t max_partitions = 63; /* Currently hardcoded on all ASICs before DCN 3.2 */
188 
189 	/* LB */
190 	if (dpp->base.caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
191 		/* DSCL caps: pixel data processed in fixed format */
192 		uint32_t pixel_depth = dpp1_dscl_get_pixel_depth_val(lb_params->depth);
193 		uint32_t dyn_pix_depth = lb_params->dynamic_pixel_depth;
194 
195 		REG_SET_7(LB_DATA_FORMAT, 0,
196 			PIXEL_DEPTH, pixel_depth, /* Pixel depth stored in LB */
197 			PIXEL_EXPAN_MODE, lb_params->pixel_expan_mode, /* Pixel expansion mode */
198 			PIXEL_REDUCE_MODE, 1, /* Pixel reduction mode: Rounding */
199 			DYNAMIC_PIXEL_DEPTH, dyn_pix_depth, /* Dynamic expansion pixel depth */
200 			DITHER_EN, 0, /* Dithering enable: Disabled */
201 			INTERLEAVE_EN, lb_params->interleave_en, /* Interleave source enable */
202 			LB_DATA_FORMAT__ALPHA_EN, lb_params->alpha_en); /* Alpha enable */
203 	}
204 	else {
205 		/* DSCL caps: pixel data processed in float format */
206 		REG_SET_2(LB_DATA_FORMAT, 0,
207 			INTERLEAVE_EN, lb_params->interleave_en, /* Interleave source enable */
208 			LB_DATA_FORMAT__ALPHA_EN, lb_params->alpha_en); /* Alpha enable */
209 	}
210 
211 	if (dpp->base.caps->max_lb_partitions == 31)
212 		max_partitions = 31;
213 
214 	REG_SET_2(LB_MEMORY_CTRL, 0,
215 		MEMORY_CONFIG, mem_size_config,
216 		LB_MAX_PARTITIONS, max_partitions);
217 }
218 
219 static const uint16_t *dpp1_dscl_get_filter_coeffs_64p(int taps, struct fixed31_32 ratio)
220 {
221 	if (taps == 8)
222 		return get_filter_8tap_64p(ratio);
223 	else if (taps == 7)
224 		return get_filter_7tap_64p(ratio);
225 	else if (taps == 6)
226 		return get_filter_6tap_64p(ratio);
227 	else if (taps == 5)
228 		return get_filter_5tap_64p(ratio);
229 	else if (taps == 4)
230 		return get_filter_4tap_64p(ratio);
231 	else if (taps == 3)
232 		return get_filter_3tap_64p(ratio);
233 	else if (taps == 2)
234 		return get_filter_2tap_64p();
235 	else if (taps == 1)
236 		return NULL;
237 	else {
238 		/* should never happen, bug */
239 		BREAK_TO_DEBUGGER();
240 		return NULL;
241 	}
242 }
243 
244 static void dpp1_dscl_set_scaler_filter(
245 		struct dcn10_dpp *dpp,
246 		uint32_t taps,
247 		enum dcn10_coef_filter_type_sel filter_type,
248 		const uint16_t *filter)
249 {
250 	const int tap_pairs = (taps + 1) / 2;
251 	int phase;
252 	int pair;
253 	uint16_t odd_coef, even_coef;
254 
255 	REG_SET_3(SCL_COEF_RAM_TAP_SELECT, 0,
256 		SCL_COEF_RAM_TAP_PAIR_IDX, 0,
257 		SCL_COEF_RAM_PHASE, 0,
258 		SCL_COEF_RAM_FILTER_TYPE, filter_type);
259 
260 	for (phase = 0; phase < (NUM_PHASES / 2 + 1); phase++) {
261 		for (pair = 0; pair < tap_pairs; pair++) {
262 			even_coef = filter[phase * taps + 2 * pair];
263 			if ((pair * 2 + 1) < taps)
264 				odd_coef = filter[phase * taps + 2 * pair + 1];
265 			else
266 				odd_coef = 0;
267 
268 			REG_SET_4(SCL_COEF_RAM_TAP_DATA, 0,
269 				/* Even tap coefficient (bits 1:0 fixed to 0) */
270 				SCL_COEF_RAM_EVEN_TAP_COEF, even_coef,
271 				/* Write/read control for even coefficient */
272 				SCL_COEF_RAM_EVEN_TAP_COEF_EN, 1,
273 				/* Odd tap coefficient (bits 1:0 fixed to 0) */
274 				SCL_COEF_RAM_ODD_TAP_COEF, odd_coef,
275 				/* Write/read control for odd coefficient */
276 				SCL_COEF_RAM_ODD_TAP_COEF_EN, 1);
277 		}
278 	}
279 
280 }
281 
282 static void dpp1_dscl_set_scl_filter(
283 		struct dcn10_dpp *dpp,
284 		const struct scaler_data *scl_data,
285 		bool chroma_coef_mode)
286 {
287 	bool h_2tap_hardcode_coef_en = false;
288 	bool v_2tap_hardcode_coef_en = false;
289 	bool h_2tap_sharp_en = false;
290 	bool v_2tap_sharp_en = false;
291 	uint32_t h_2tap_sharp_factor = scl_data->sharpness.horz;
292 	uint32_t v_2tap_sharp_factor = scl_data->sharpness.vert;
293 	bool coef_ram_current;
294 	const uint16_t *filter_h = NULL;
295 	const uint16_t *filter_v = NULL;
296 	const uint16_t *filter_h_c = NULL;
297 	const uint16_t *filter_v_c = NULL;
298 
299 	h_2tap_hardcode_coef_en = scl_data->taps.h_taps < 3
300 					&& scl_data->taps.h_taps_c < 3
301 		&& (scl_data->taps.h_taps > 1 && scl_data->taps.h_taps_c > 1);
302 	v_2tap_hardcode_coef_en = scl_data->taps.v_taps < 3
303 					&& scl_data->taps.v_taps_c < 3
304 		&& (scl_data->taps.v_taps > 1 && scl_data->taps.v_taps_c > 1);
305 
306 	h_2tap_sharp_en = h_2tap_hardcode_coef_en && h_2tap_sharp_factor != 0;
307 	v_2tap_sharp_en = v_2tap_hardcode_coef_en && v_2tap_sharp_factor != 0;
308 
309 	REG_UPDATE_6(DSCL_2TAP_CONTROL,
310 		SCL_H_2TAP_HARDCODE_COEF_EN, h_2tap_hardcode_coef_en,
311 		SCL_H_2TAP_SHARP_EN, h_2tap_sharp_en,
312 		SCL_H_2TAP_SHARP_FACTOR, h_2tap_sharp_factor,
313 		SCL_V_2TAP_HARDCODE_COEF_EN, v_2tap_hardcode_coef_en,
314 		SCL_V_2TAP_SHARP_EN, v_2tap_sharp_en,
315 		SCL_V_2TAP_SHARP_FACTOR, v_2tap_sharp_factor);
316 
317 	if (!v_2tap_hardcode_coef_en || !h_2tap_hardcode_coef_en) {
318 		bool filter_updated = false;
319 
320 		filter_h = dpp1_dscl_get_filter_coeffs_64p(
321 				scl_data->taps.h_taps, scl_data->ratios.horz);
322 		filter_v = dpp1_dscl_get_filter_coeffs_64p(
323 				scl_data->taps.v_taps, scl_data->ratios.vert);
324 
325 		filter_updated = (filter_h && (filter_h != dpp->filter_h))
326 				|| (filter_v && (filter_v != dpp->filter_v));
327 
328 		if (chroma_coef_mode) {
329 			filter_h_c = dpp1_dscl_get_filter_coeffs_64p(
330 					scl_data->taps.h_taps_c, scl_data->ratios.horz_c);
331 			filter_v_c = dpp1_dscl_get_filter_coeffs_64p(
332 					scl_data->taps.v_taps_c, scl_data->ratios.vert_c);
333 			filter_updated = filter_updated || (filter_h_c && (filter_h_c != dpp->filter_h_c))
334 							|| (filter_v_c && (filter_v_c != dpp->filter_v_c));
335 		}
336 
337 		if (filter_updated) {
338 			uint32_t scl_mode = REG_READ(SCL_MODE);
339 
340 			if (!h_2tap_hardcode_coef_en && filter_h) {
341 				dpp1_dscl_set_scaler_filter(
342 					dpp, scl_data->taps.h_taps,
343 					SCL_COEF_LUMA_HORZ_FILTER, filter_h);
344 			}
345 			dpp->filter_h = filter_h;
346 			if (!v_2tap_hardcode_coef_en && filter_v) {
347 				dpp1_dscl_set_scaler_filter(
348 					dpp, scl_data->taps.v_taps,
349 					SCL_COEF_LUMA_VERT_FILTER, filter_v);
350 			}
351 			dpp->filter_v = filter_v;
352 			if (chroma_coef_mode) {
353 				if (!h_2tap_hardcode_coef_en && filter_h_c) {
354 					dpp1_dscl_set_scaler_filter(
355 						dpp, scl_data->taps.h_taps_c,
356 						SCL_COEF_CHROMA_HORZ_FILTER, filter_h_c);
357 				}
358 				if (!v_2tap_hardcode_coef_en && filter_v_c) {
359 					dpp1_dscl_set_scaler_filter(
360 						dpp, scl_data->taps.v_taps_c,
361 						SCL_COEF_CHROMA_VERT_FILTER, filter_v_c);
362 				}
363 			}
364 			dpp->filter_h_c = filter_h_c;
365 			dpp->filter_v_c = filter_v_c;
366 
367 			coef_ram_current = get_reg_field_value_ex(
368 				scl_mode, dpp->tf_mask->SCL_COEF_RAM_SELECT_CURRENT,
369 				dpp->tf_shift->SCL_COEF_RAM_SELECT_CURRENT);
370 
371 			/* Swap coefficient RAM and set chroma coefficient mode */
372 			REG_SET_2(SCL_MODE, scl_mode,
373 					SCL_COEF_RAM_SELECT, !coef_ram_current,
374 					SCL_CHROMA_COEF_MODE, chroma_coef_mode);
375 		}
376 	}
377 }
378 
379 static int dpp1_dscl_get_lb_depth_bpc(enum lb_pixel_depth depth)
380 {
381 	if (depth == LB_PIXEL_DEPTH_30BPP)
382 		return 10;
383 	else if (depth == LB_PIXEL_DEPTH_24BPP)
384 		return 8;
385 	else if (depth == LB_PIXEL_DEPTH_18BPP)
386 		return 6;
387 	else if (depth == LB_PIXEL_DEPTH_36BPP)
388 		return 12;
389 	else {
390 		BREAK_TO_DEBUGGER();
391 		return -1; /* Unsupported */
392 	}
393 }
394 
395 void dpp1_dscl_calc_lb_num_partitions(
396 		const struct scaler_data *scl_data,
397 		enum lb_memory_config lb_config,
398 		int *num_part_y,
399 		int *num_part_c)
400 {
401 	int lb_memory_size, lb_memory_size_c, lb_memory_size_a, num_partitions_a,
402 	lb_bpc, memory_line_size_y, memory_line_size_c, memory_line_size_a;
403 
404 	int line_size = scl_data->viewport.width < scl_data->recout.width ?
405 			scl_data->viewport.width : scl_data->recout.width;
406 	int line_size_c = scl_data->viewport_c.width < scl_data->recout.width ?
407 			scl_data->viewport_c.width : scl_data->recout.width;
408 
409 	if (line_size == 0)
410 		line_size = 1;
411 
412 	if (line_size_c == 0)
413 		line_size_c = 1;
414 
415 
416 	lb_bpc = dpp1_dscl_get_lb_depth_bpc(scl_data->lb_params.depth);
417 	memory_line_size_y = (line_size * lb_bpc + 71) / 72; /* +71 to ceil */
418 	memory_line_size_c = (line_size_c * lb_bpc + 71) / 72; /* +71 to ceil */
419 	memory_line_size_a = (line_size + 5) / 6; /* +5 to ceil */
420 
421 	if (lb_config == LB_MEMORY_CONFIG_1) {
422 		lb_memory_size = 816;
423 		lb_memory_size_c = 816;
424 		lb_memory_size_a = 984;
425 	} else if (lb_config == LB_MEMORY_CONFIG_2) {
426 		lb_memory_size = 1088;
427 		lb_memory_size_c = 1088;
428 		lb_memory_size_a = 1312;
429 	} else if (lb_config == LB_MEMORY_CONFIG_3) {
430 		/* 420 mode: using 3rd mem from Y, Cr and Cb */
431 		lb_memory_size = 816 + 1088 + 848 + 848 + 848;
432 		lb_memory_size_c = 816 + 1088;
433 		lb_memory_size_a = 984 + 1312 + 456;
434 	} else {
435 		lb_memory_size = 816 + 1088 + 848;
436 		lb_memory_size_c = 816 + 1088 + 848;
437 		lb_memory_size_a = 984 + 1312 + 456;
438 	}
439 	*num_part_y = lb_memory_size / memory_line_size_y;
440 	*num_part_c = lb_memory_size_c / memory_line_size_c;
441 	num_partitions_a = lb_memory_size_a / memory_line_size_a;
442 
443 	if (scl_data->lb_params.alpha_en
444 			&& (num_partitions_a < *num_part_y))
445 		*num_part_y = num_partitions_a;
446 
447 	if (*num_part_y > 64)
448 		*num_part_y = 64;
449 	if (*num_part_c > 64)
450 		*num_part_c = 64;
451 
452 }
453 
454 bool dpp1_dscl_is_lb_conf_valid(int ceil_vratio, int num_partitions, int vtaps)
455 {
456 	if (ceil_vratio > 2)
457 		return vtaps <= (num_partitions - ceil_vratio + 2);
458 	else
459 		return vtaps <= num_partitions;
460 }
461 
462 /*find first match configuration which meets the min required lb size*/
463 static enum lb_memory_config dpp1_dscl_find_lb_memory_config(struct dcn10_dpp *dpp,
464 		const struct scaler_data *scl_data)
465 {
466 	int num_part_y, num_part_c;
467 	int vtaps = scl_data->taps.v_taps;
468 	int vtaps_c = scl_data->taps.v_taps_c;
469 	int ceil_vratio = dc_fixpt_ceil(scl_data->ratios.vert);
470 	int ceil_vratio_c = dc_fixpt_ceil(scl_data->ratios.vert_c);
471 
472 	if (dpp->base.ctx->dc->debug.use_max_lb) {
473 		if (scl_data->format == PIXEL_FORMAT_420BPP8
474 				|| scl_data->format == PIXEL_FORMAT_420BPP10)
475 			return LB_MEMORY_CONFIG_3;
476 		return LB_MEMORY_CONFIG_0;
477 	}
478 
479 	dpp->base.caps->dscl_calc_lb_num_partitions(
480 			scl_data, LB_MEMORY_CONFIG_1, &num_part_y, &num_part_c);
481 
482 	if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
483 			&& dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
484 		return LB_MEMORY_CONFIG_1;
485 
486 	dpp->base.caps->dscl_calc_lb_num_partitions(
487 			scl_data, LB_MEMORY_CONFIG_2, &num_part_y, &num_part_c);
488 
489 	if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
490 			&& dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
491 		return LB_MEMORY_CONFIG_2;
492 
493 	if (scl_data->format == PIXEL_FORMAT_420BPP8
494 			|| scl_data->format == PIXEL_FORMAT_420BPP10) {
495 		dpp->base.caps->dscl_calc_lb_num_partitions(
496 				scl_data, LB_MEMORY_CONFIG_3, &num_part_y, &num_part_c);
497 
498 		if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
499 				&& dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
500 			return LB_MEMORY_CONFIG_3;
501 	}
502 
503 	dpp->base.caps->dscl_calc_lb_num_partitions(
504 			scl_data, LB_MEMORY_CONFIG_0, &num_part_y, &num_part_c);
505 
506 	/*Ensure we can support the requested number of vtaps*/
507 	ASSERT(dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
508 			&& dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c));
509 
510 	return LB_MEMORY_CONFIG_0;
511 }
512 
513 
514 static void dpp1_dscl_set_manual_ratio_init(
515 		struct dcn10_dpp *dpp, const struct scaler_data *data)
516 {
517 	uint32_t init_frac = 0;
518 	uint32_t init_int = 0;
519 
520 	REG_SET(SCL_HORZ_FILTER_SCALE_RATIO, 0,
521 			SCL_H_SCALE_RATIO, dc_fixpt_u3d19(data->ratios.horz) << 5);
522 
523 	REG_SET(SCL_VERT_FILTER_SCALE_RATIO, 0,
524 			SCL_V_SCALE_RATIO, dc_fixpt_u3d19(data->ratios.vert) << 5);
525 
526 	REG_SET(SCL_HORZ_FILTER_SCALE_RATIO_C, 0,
527 			SCL_H_SCALE_RATIO_C, dc_fixpt_u3d19(data->ratios.horz_c) << 5);
528 
529 	REG_SET(SCL_VERT_FILTER_SCALE_RATIO_C, 0,
530 			SCL_V_SCALE_RATIO_C, dc_fixpt_u3d19(data->ratios.vert_c) << 5);
531 
532 	/*
533 	 * 0.24 format for fraction, first five bits zeroed
534 	 */
535 	init_frac = dc_fixpt_u0d19(data->inits.h) << 5;
536 	init_int = dc_fixpt_floor(data->inits.h);
537 	REG_SET_2(SCL_HORZ_FILTER_INIT, 0,
538 		SCL_H_INIT_FRAC, init_frac,
539 		SCL_H_INIT_INT, init_int);
540 
541 	init_frac = dc_fixpt_u0d19(data->inits.h_c) << 5;
542 	init_int = dc_fixpt_floor(data->inits.h_c);
543 	REG_SET_2(SCL_HORZ_FILTER_INIT_C, 0,
544 		SCL_H_INIT_FRAC_C, init_frac,
545 		SCL_H_INIT_INT_C, init_int);
546 
547 	init_frac = dc_fixpt_u0d19(data->inits.v) << 5;
548 	init_int = dc_fixpt_floor(data->inits.v);
549 	REG_SET_2(SCL_VERT_FILTER_INIT, 0,
550 		SCL_V_INIT_FRAC, init_frac,
551 		SCL_V_INIT_INT, init_int);
552 
553 	if (REG(SCL_VERT_FILTER_INIT_BOT)) {
554 		struct fixed31_32 bot = dc_fixpt_add(data->inits.v, data->ratios.vert);
555 
556 		init_frac = dc_fixpt_u0d19(bot) << 5;
557 		init_int = dc_fixpt_floor(bot);
558 		REG_SET_2(SCL_VERT_FILTER_INIT_BOT, 0,
559 			SCL_V_INIT_FRAC_BOT, init_frac,
560 			SCL_V_INIT_INT_BOT, init_int);
561 	}
562 
563 	init_frac = dc_fixpt_u0d19(data->inits.v_c) << 5;
564 	init_int = dc_fixpt_floor(data->inits.v_c);
565 	REG_SET_2(SCL_VERT_FILTER_INIT_C, 0,
566 		SCL_V_INIT_FRAC_C, init_frac,
567 		SCL_V_INIT_INT_C, init_int);
568 
569 	if (REG(SCL_VERT_FILTER_INIT_BOT_C)) {
570 		struct fixed31_32 bot = dc_fixpt_add(data->inits.v_c, data->ratios.vert_c);
571 
572 		init_frac = dc_fixpt_u0d19(bot) << 5;
573 		init_int = dc_fixpt_floor(bot);
574 		REG_SET_2(SCL_VERT_FILTER_INIT_BOT_C, 0,
575 			SCL_V_INIT_FRAC_BOT_C, init_frac,
576 			SCL_V_INIT_INT_BOT_C, init_int);
577 	}
578 }
579 
580 /**
581  * dpp1_dscl_set_recout - Set the first pixel of RECOUT in the OTG active area
582  *
583  * @dpp: DPP data struct
584  * @recount: Rectangle information
585  *
586  * This function sets the MPC RECOUT_START and RECOUT_SIZE registers based on
587  * the values specified in the recount parameter.
588  *
589  * Note: This function only have effect if AutoCal is disabled.
590  */
591 static void dpp1_dscl_set_recout(struct dcn10_dpp *dpp,
592 				 const struct rect *recout)
593 {
594 	int visual_confirm_on = 0;
595 	unsigned short visual_confirm_rect_height = VISUAL_CONFIRM_RECT_HEIGHT_DEFAULT;
596 
597 	if (dpp->base.ctx->dc->debug.visual_confirm != VISUAL_CONFIRM_DISABLE)
598 		visual_confirm_on = 1;
599 
600 	/* Check bounds to ensure the VC bar height was set to a sane value */
601 	if ((dpp->base.ctx->dc->debug.visual_confirm_rect_height >= VISUAL_CONFIRM_RECT_HEIGHT_MIN) &&
602 			(dpp->base.ctx->dc->debug.visual_confirm_rect_height <= VISUAL_CONFIRM_RECT_HEIGHT_MAX)) {
603 		visual_confirm_rect_height = dpp->base.ctx->dc->debug.visual_confirm_rect_height;
604 	}
605 
606 	REG_SET_2(RECOUT_START, 0,
607 		  /* First pixel of RECOUT in the active OTG area */
608 		  RECOUT_START_X, recout->x,
609 		  /* First line of RECOUT in the active OTG area */
610 		  RECOUT_START_Y, recout->y);
611 
612 	REG_SET_2(RECOUT_SIZE, 0,
613 		  /* Number of RECOUT horizontal pixels */
614 		  RECOUT_WIDTH, recout->width,
615 		  /* Number of RECOUT vertical lines */
616 		  RECOUT_HEIGHT, recout->height
617 			 - visual_confirm_on * 2 * (dpp->base.inst + visual_confirm_rect_height));
618 }
619 
620 /**
621  * dpp1_dscl_set_scaler_manual_scale - Manually program scaler and line buffer
622  *
623  * @dpp_base: High level DPP struct
624  * @scl_data: scalaer_data info
625  *
626  * This is the primary function to program scaler and line buffer in manual
627  * scaling mode. To execute the required operations for manual scale, we need
628  * to disable AutoCal first.
629  */
630 void dpp1_dscl_set_scaler_manual_scale(struct dpp *dpp_base,
631 				       const struct scaler_data *scl_data)
632 {
633 	enum lb_memory_config lb_config;
634 	struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
635 	enum dscl_mode_sel dscl_mode = dpp1_dscl_get_dscl_mode(
636 			dpp_base, scl_data, dpp_base->ctx->dc->debug.always_scale);
637 	bool ycbcr = scl_data->format >= PIXEL_FORMAT_VIDEO_BEGIN
638 				&& scl_data->format <= PIXEL_FORMAT_VIDEO_END;
639 
640 	if (memcmp(&dpp->scl_data, scl_data, sizeof(*scl_data)) == 0)
641 		return;
642 
643 	PERF_TRACE();
644 
645 	dpp->scl_data = *scl_data;
646 
647 	if (dpp_base->ctx->dc->debug.enable_mem_low_power.bits.dscl) {
648 		if (dscl_mode != DSCL_MODE_DSCL_BYPASS)
649 			dpp1_power_on_dscl(dpp_base, true);
650 	}
651 
652 	/* Autocal off */
653 	REG_SET_3(DSCL_AUTOCAL, 0,
654 		AUTOCAL_MODE, AUTOCAL_MODE_OFF,
655 		AUTOCAL_NUM_PIPE, 0,
656 		AUTOCAL_PIPE_ID, 0);
657 
658 	/* Recout */
659 	dpp1_dscl_set_recout(dpp, &scl_data->recout);
660 
661 	/* MPC Size */
662 	REG_SET_2(MPC_SIZE, 0,
663 		/* Number of horizontal pixels of MPC */
664 			 MPC_WIDTH, scl_data->h_active,
665 		/* Number of vertical lines of MPC */
666 			 MPC_HEIGHT, scl_data->v_active);
667 
668 	/* SCL mode */
669 	REG_UPDATE(SCL_MODE, DSCL_MODE, dscl_mode);
670 
671 	if (dscl_mode == DSCL_MODE_DSCL_BYPASS) {
672 		if (dpp_base->ctx->dc->debug.enable_mem_low_power.bits.dscl)
673 			dpp1_power_on_dscl(dpp_base, false);
674 		return;
675 	}
676 
677 	/* LB */
678 	lb_config =  dpp1_dscl_find_lb_memory_config(dpp, scl_data);
679 	dpp1_dscl_set_lb(dpp, &scl_data->lb_params, lb_config);
680 
681 	if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS)
682 		return;
683 
684 	/* Black offsets */
685 	if (REG(SCL_BLACK_OFFSET)) {
686 		if (ycbcr)
687 			REG_SET_2(SCL_BLACK_OFFSET, 0,
688 					SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
689 					SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_CBCR);
690 		else
691 
692 			REG_SET_2(SCL_BLACK_OFFSET, 0,
693 					SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
694 					SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_RGB_Y);
695 	}
696 
697 	/* Manually calculate scale ratio and init values */
698 	dpp1_dscl_set_manual_ratio_init(dpp, scl_data);
699 
700 	/* HTaps/VTaps */
701 	REG_SET_4(SCL_TAP_CONTROL, 0,
702 		SCL_V_NUM_TAPS, scl_data->taps.v_taps - 1,
703 		SCL_H_NUM_TAPS, scl_data->taps.h_taps - 1,
704 		SCL_V_NUM_TAPS_C, scl_data->taps.v_taps_c - 1,
705 		SCL_H_NUM_TAPS_C, scl_data->taps.h_taps_c - 1);
706 
707 	dpp1_dscl_set_scl_filter(dpp, scl_data, ycbcr);
708 	PERF_TRACE();
709 }
710