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 REG(reg)\
43 	dpp->tf_regs->reg
44 
45 #define CTX \
46 	dpp->base.ctx
47 
48 #undef FN
49 #define FN(reg_name, field_name) \
50 	dpp->tf_shift->field_name, dpp->tf_mask->field_name
51 
52 enum dcn10_coef_filter_type_sel {
53 	SCL_COEF_LUMA_VERT_FILTER = 0,
54 	SCL_COEF_LUMA_HORZ_FILTER = 1,
55 	SCL_COEF_CHROMA_VERT_FILTER = 2,
56 	SCL_COEF_CHROMA_HORZ_FILTER = 3,
57 	SCL_COEF_ALPHA_VERT_FILTER = 4,
58 	SCL_COEF_ALPHA_HORZ_FILTER = 5
59 };
60 
61 enum dscl_autocal_mode {
62 	AUTOCAL_MODE_OFF = 0,
63 
64 	/* Autocal calculate the scaling ratio and initial phase and the
65 	 * DSCL_MODE_SEL must be set to 1
66 	 */
67 	AUTOCAL_MODE_AUTOSCALE = 1,
68 	/* Autocal perform auto centering without replication and the
69 	 * DSCL_MODE_SEL must be set to 0
70 	 */
71 	AUTOCAL_MODE_AUTOCENTER = 2,
72 	/* Autocal perform auto centering and auto replication and the
73 	 * DSCL_MODE_SEL must be set to 0
74 	 */
75 	AUTOCAL_MODE_AUTOREPLICATE = 3
76 };
77 
78 enum dscl_mode_sel {
79 	DSCL_MODE_SCALING_444_BYPASS = 0,
80 	DSCL_MODE_SCALING_444_RGB_ENABLE = 1,
81 	DSCL_MODE_SCALING_444_YCBCR_ENABLE = 2,
82 	DSCL_MODE_SCALING_420_YCBCR_ENABLE = 3,
83 	DSCL_MODE_SCALING_420_LUMA_BYPASS = 4,
84 	DSCL_MODE_SCALING_420_CHROMA_BYPASS = 5,
85 	DSCL_MODE_DSCL_BYPASS = 6
86 };
87 
88 static void dpp1_dscl_set_overscan(
89 	struct dcn10_dpp *dpp,
90 	const struct scaler_data *data)
91 {
92 	uint32_t left = data->recout.x;
93 	uint32_t top = data->recout.y;
94 
95 	int right = data->h_active - data->recout.x - data->recout.width;
96 	int bottom = data->v_active - data->recout.y - data->recout.height;
97 
98 	if (right < 0) {
99 		BREAK_TO_DEBUGGER();
100 		right = 0;
101 	}
102 	if (bottom < 0) {
103 		BREAK_TO_DEBUGGER();
104 		bottom = 0;
105 	}
106 
107 	REG_SET_2(DSCL_EXT_OVERSCAN_LEFT_RIGHT, 0,
108 		EXT_OVERSCAN_LEFT, left,
109 		EXT_OVERSCAN_RIGHT, right);
110 
111 	REG_SET_2(DSCL_EXT_OVERSCAN_TOP_BOTTOM, 0,
112 		EXT_OVERSCAN_BOTTOM, bottom,
113 		EXT_OVERSCAN_TOP, top);
114 }
115 
116 static void dpp1_dscl_set_otg_blank(
117 		struct dcn10_dpp *dpp, const struct scaler_data *data)
118 {
119 	uint32_t h_blank_start = data->h_active;
120 	uint32_t h_blank_end = 0;
121 	uint32_t v_blank_start = data->v_active;
122 	uint32_t v_blank_end = 0;
123 
124 	REG_SET_2(OTG_H_BLANK, 0,
125 			OTG_H_BLANK_START, h_blank_start,
126 			OTG_H_BLANK_END, h_blank_end);
127 
128 	REG_SET_2(OTG_V_BLANK, 0,
129 			OTG_V_BLANK_START, v_blank_start,
130 			OTG_V_BLANK_END, v_blank_end);
131 }
132 
133 static int dpp1_dscl_get_pixel_depth_val(enum lb_pixel_depth depth)
134 {
135 	if (depth == LB_PIXEL_DEPTH_30BPP)
136 		return 0; /* 10 bpc */
137 	else if (depth == LB_PIXEL_DEPTH_24BPP)
138 		return 1; /* 8 bpc */
139 	else if (depth == LB_PIXEL_DEPTH_18BPP)
140 		return 2; /* 6 bpc */
141 	else if (depth == LB_PIXEL_DEPTH_36BPP)
142 		return 3; /* 12 bpc */
143 	else {
144 		ASSERT(0);
145 		return -1; /* Unsupported */
146 	}
147 }
148 
149 static bool dpp1_dscl_is_video_format(enum pixel_format format)
150 {
151 	if (format >= PIXEL_FORMAT_VIDEO_BEGIN
152 			&& format <= PIXEL_FORMAT_VIDEO_END)
153 		return true;
154 	else
155 		return false;
156 }
157 
158 static bool dpp1_dscl_is_420_format(enum pixel_format format)
159 {
160 	if (format == PIXEL_FORMAT_420BPP8 ||
161 			format == PIXEL_FORMAT_420BPP10)
162 		return true;
163 	else
164 		return false;
165 }
166 
167 static enum dscl_mode_sel dpp1_dscl_get_dscl_mode(
168 		struct dpp *dpp_base,
169 		const struct scaler_data *data,
170 		bool dbg_always_scale)
171 {
172 	const long long one = dc_fixpt_one.value;
173 
174 	if (dpp_base->caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
175 		/* DSCL is processing data in fixed format */
176 		if (data->format == PIXEL_FORMAT_FP16)
177 			return DSCL_MODE_DSCL_BYPASS;
178 	}
179 
180 	if (data->ratios.horz.value == one
181 			&& data->ratios.vert.value == one
182 			&& data->ratios.horz_c.value == one
183 			&& data->ratios.vert_c.value == one
184 			&& !dbg_always_scale)
185 		return DSCL_MODE_SCALING_444_BYPASS;
186 
187 	if (!dpp1_dscl_is_420_format(data->format)) {
188 		if (dpp1_dscl_is_video_format(data->format))
189 			return DSCL_MODE_SCALING_444_YCBCR_ENABLE;
190 		else
191 			return DSCL_MODE_SCALING_444_RGB_ENABLE;
192 	}
193 	if (data->ratios.horz.value == one && data->ratios.vert.value == one)
194 		return DSCL_MODE_SCALING_420_LUMA_BYPASS;
195 	if (data->ratios.horz_c.value == one && data->ratios.vert_c.value == one)
196 		return DSCL_MODE_SCALING_420_CHROMA_BYPASS;
197 
198 	return DSCL_MODE_SCALING_420_YCBCR_ENABLE;
199 }
200 
201 static void dpp1_dscl_set_lb(
202 	struct dcn10_dpp *dpp,
203 	const struct line_buffer_params *lb_params,
204 	enum lb_memory_config mem_size_config)
205 {
206 	/* LB */
207 	if (dpp->base.caps->dscl_data_proc_format == DSCL_DATA_PRCESSING_FIXED_FORMAT) {
208 		/* DSCL caps: pixel data processed in fixed format */
209 		uint32_t pixel_depth = dpp1_dscl_get_pixel_depth_val(lb_params->depth);
210 		uint32_t dyn_pix_depth = lb_params->dynamic_pixel_depth;
211 
212 		REG_SET_7(LB_DATA_FORMAT, 0,
213 			PIXEL_DEPTH, pixel_depth, /* Pixel depth stored in LB */
214 			PIXEL_EXPAN_MODE, lb_params->pixel_expan_mode, /* Pixel expansion mode */
215 			PIXEL_REDUCE_MODE, 1, /* Pixel reduction mode: Rounding */
216 			DYNAMIC_PIXEL_DEPTH, dyn_pix_depth, /* Dynamic expansion pixel depth */
217 			DITHER_EN, 0, /* Dithering enable: Disabled */
218 			INTERLEAVE_EN, lb_params->interleave_en, /* Interleave source enable */
219 			LB_DATA_FORMAT__ALPHA_EN, lb_params->alpha_en); /* Alpha enable */
220 	}
221 
222 	REG_SET_2(LB_MEMORY_CTRL, 0,
223 		MEMORY_CONFIG, mem_size_config,
224 		LB_MAX_PARTITIONS, 63);
225 }
226 
227 static const uint16_t *dpp1_dscl_get_filter_coeffs_64p(int taps, struct fixed31_32 ratio)
228 {
229 	if (taps == 8)
230 		return get_filter_8tap_64p(ratio);
231 	else if (taps == 7)
232 		return get_filter_7tap_64p(ratio);
233 	else if (taps == 6)
234 		return get_filter_6tap_64p(ratio);
235 	else if (taps == 5)
236 		return get_filter_5tap_64p(ratio);
237 	else if (taps == 4)
238 		return get_filter_4tap_64p(ratio);
239 	else if (taps == 3)
240 		return get_filter_3tap_64p(ratio);
241 	else if (taps == 2)
242 		return get_filter_2tap_64p();
243 	else if (taps == 1)
244 		return NULL;
245 	else {
246 		/* should never happen, bug */
247 		BREAK_TO_DEBUGGER();
248 		return NULL;
249 	}
250 }
251 
252 static void dpp1_dscl_set_scaler_filter(
253 		struct dcn10_dpp *dpp,
254 		uint32_t taps,
255 		enum dcn10_coef_filter_type_sel filter_type,
256 		const uint16_t *filter)
257 {
258 	const int tap_pairs = (taps + 1) / 2;
259 	int phase;
260 	int pair;
261 	uint16_t odd_coef, even_coef;
262 
263 	REG_SET_3(SCL_COEF_RAM_TAP_SELECT, 0,
264 		SCL_COEF_RAM_TAP_PAIR_IDX, 0,
265 		SCL_COEF_RAM_PHASE, 0,
266 		SCL_COEF_RAM_FILTER_TYPE, filter_type);
267 
268 	for (phase = 0; phase < (NUM_PHASES / 2 + 1); phase++) {
269 		for (pair = 0; pair < tap_pairs; pair++) {
270 			even_coef = filter[phase * taps + 2 * pair];
271 			if ((pair * 2 + 1) < taps)
272 				odd_coef = filter[phase * taps + 2 * pair + 1];
273 			else
274 				odd_coef = 0;
275 
276 			REG_SET_4(SCL_COEF_RAM_TAP_DATA, 0,
277 				/* Even tap coefficient (bits 1:0 fixed to 0) */
278 				SCL_COEF_RAM_EVEN_TAP_COEF, even_coef,
279 				/* Write/read control for even coefficient */
280 				SCL_COEF_RAM_EVEN_TAP_COEF_EN, 1,
281 				/* Odd tap coefficient (bits 1:0 fixed to 0) */
282 				SCL_COEF_RAM_ODD_TAP_COEF, odd_coef,
283 				/* Write/read control for odd coefficient */
284 				SCL_COEF_RAM_ODD_TAP_COEF_EN, 1);
285 		}
286 	}
287 
288 }
289 
290 static void dpp1_dscl_set_scl_filter(
291 		struct dcn10_dpp *dpp,
292 		const struct scaler_data *scl_data,
293 		bool chroma_coef_mode)
294 {
295 	bool h_2tap_hardcode_coef_en = false;
296 	bool v_2tap_hardcode_coef_en = false;
297 	bool h_2tap_sharp_en = false;
298 	bool v_2tap_sharp_en = false;
299 	uint32_t h_2tap_sharp_factor = scl_data->sharpness.horz;
300 	uint32_t v_2tap_sharp_factor = scl_data->sharpness.vert;
301 	bool coef_ram_current;
302 	const uint16_t *filter_h = NULL;
303 	const uint16_t *filter_v = NULL;
304 	const uint16_t *filter_h_c = NULL;
305 	const uint16_t *filter_v_c = NULL;
306 
307 	h_2tap_hardcode_coef_en = scl_data->taps.h_taps < 3
308 					&& scl_data->taps.h_taps_c < 3
309 		&& (scl_data->taps.h_taps > 1 && scl_data->taps.h_taps_c > 1);
310 	v_2tap_hardcode_coef_en = scl_data->taps.v_taps < 3
311 					&& scl_data->taps.v_taps_c < 3
312 		&& (scl_data->taps.v_taps > 1 && scl_data->taps.v_taps_c > 1);
313 
314 	h_2tap_sharp_en = h_2tap_hardcode_coef_en && h_2tap_sharp_factor != 0;
315 	v_2tap_sharp_en = v_2tap_hardcode_coef_en && v_2tap_sharp_factor != 0;
316 
317 	REG_UPDATE_6(DSCL_2TAP_CONTROL,
318 		SCL_H_2TAP_HARDCODE_COEF_EN, h_2tap_hardcode_coef_en,
319 		SCL_H_2TAP_SHARP_EN, h_2tap_sharp_en,
320 		SCL_H_2TAP_SHARP_FACTOR, h_2tap_sharp_factor,
321 		SCL_V_2TAP_HARDCODE_COEF_EN, v_2tap_hardcode_coef_en,
322 		SCL_V_2TAP_SHARP_EN, v_2tap_sharp_en,
323 		SCL_V_2TAP_SHARP_FACTOR, v_2tap_sharp_factor);
324 
325 	if (!v_2tap_hardcode_coef_en || !h_2tap_hardcode_coef_en) {
326 		bool filter_updated = false;
327 
328 		filter_h = dpp1_dscl_get_filter_coeffs_64p(
329 				scl_data->taps.h_taps, scl_data->ratios.horz);
330 		filter_v = dpp1_dscl_get_filter_coeffs_64p(
331 				scl_data->taps.v_taps, scl_data->ratios.vert);
332 
333 		filter_updated = (filter_h && (filter_h != dpp->filter_h))
334 				|| (filter_v && (filter_v != dpp->filter_v));
335 
336 		if (chroma_coef_mode) {
337 			filter_h_c = dpp1_dscl_get_filter_coeffs_64p(
338 					scl_data->taps.h_taps_c, scl_data->ratios.horz_c);
339 			filter_v_c = dpp1_dscl_get_filter_coeffs_64p(
340 					scl_data->taps.v_taps_c, scl_data->ratios.vert_c);
341 			filter_updated = filter_updated || (filter_h_c && (filter_h_c != dpp->filter_h_c))
342 							|| (filter_v_c && (filter_v_c != dpp->filter_v_c));
343 		}
344 
345 		if (filter_updated) {
346 			uint32_t scl_mode = REG_READ(SCL_MODE);
347 
348 			if (!h_2tap_hardcode_coef_en && filter_h) {
349 				dpp1_dscl_set_scaler_filter(
350 					dpp, scl_data->taps.h_taps,
351 					SCL_COEF_LUMA_HORZ_FILTER, filter_h);
352 			}
353 			dpp->filter_h = filter_h;
354 			if (!v_2tap_hardcode_coef_en && filter_v) {
355 				dpp1_dscl_set_scaler_filter(
356 					dpp, scl_data->taps.v_taps,
357 					SCL_COEF_LUMA_VERT_FILTER, filter_v);
358 			}
359 			dpp->filter_v = filter_v;
360 			if (chroma_coef_mode) {
361 				if (!h_2tap_hardcode_coef_en && filter_h_c) {
362 					dpp1_dscl_set_scaler_filter(
363 						dpp, scl_data->taps.h_taps_c,
364 						SCL_COEF_CHROMA_HORZ_FILTER, filter_h_c);
365 				}
366 				if (!v_2tap_hardcode_coef_en && filter_v_c) {
367 					dpp1_dscl_set_scaler_filter(
368 						dpp, scl_data->taps.v_taps_c,
369 						SCL_COEF_CHROMA_VERT_FILTER, filter_v_c);
370 				}
371 			}
372 			dpp->filter_h_c = filter_h_c;
373 			dpp->filter_v_c = filter_v_c;
374 
375 			coef_ram_current = get_reg_field_value_ex(
376 				scl_mode, dpp->tf_mask->SCL_COEF_RAM_SELECT_CURRENT,
377 				dpp->tf_shift->SCL_COEF_RAM_SELECT_CURRENT);
378 
379 			/* Swap coefficient RAM and set chroma coefficient mode */
380 			REG_SET_2(SCL_MODE, scl_mode,
381 					SCL_COEF_RAM_SELECT, !coef_ram_current,
382 					SCL_CHROMA_COEF_MODE, chroma_coef_mode);
383 		}
384 	}
385 }
386 
387 static int dpp1_dscl_get_lb_depth_bpc(enum lb_pixel_depth depth)
388 {
389 	if (depth == LB_PIXEL_DEPTH_30BPP)
390 		return 10;
391 	else if (depth == LB_PIXEL_DEPTH_24BPP)
392 		return 8;
393 	else if (depth == LB_PIXEL_DEPTH_18BPP)
394 		return 6;
395 	else if (depth == LB_PIXEL_DEPTH_36BPP)
396 		return 12;
397 	else {
398 		BREAK_TO_DEBUGGER();
399 		return -1; /* Unsupported */
400 	}
401 }
402 
403 void dpp1_dscl_calc_lb_num_partitions(
404 		const struct scaler_data *scl_data,
405 		enum lb_memory_config lb_config,
406 		int *num_part_y,
407 		int *num_part_c)
408 {
409 	int line_size = scl_data->viewport.width < scl_data->recout.width ?
410 			scl_data->viewport.width : scl_data->recout.width;
411 	int line_size_c = scl_data->viewport_c.width < scl_data->recout.width ?
412 			scl_data->viewport_c.width : scl_data->recout.width;
413 	int lb_bpc = dpp1_dscl_get_lb_depth_bpc(scl_data->lb_params.depth);
414 	int memory_line_size_y = (line_size * lb_bpc + 71) / 72; /* +71 to ceil */
415 	int memory_line_size_c = (line_size_c * lb_bpc + 71) / 72; /* +71 to ceil */
416 	int memory_line_size_a = (line_size + 5) / 6; /* +5 to ceil */
417 	int lb_memory_size, lb_memory_size_c, lb_memory_size_a, num_partitions_a;
418 
419 	if (lb_config == LB_MEMORY_CONFIG_1) {
420 		lb_memory_size = 816;
421 		lb_memory_size_c = 816;
422 		lb_memory_size_a = 984;
423 	} else if (lb_config == LB_MEMORY_CONFIG_2) {
424 		lb_memory_size = 1088;
425 		lb_memory_size_c = 1088;
426 		lb_memory_size_a = 1312;
427 	} else if (lb_config == LB_MEMORY_CONFIG_3) {
428 		/* 420 mode: using 3rd mem from Y, Cr and Cb */
429 		lb_memory_size = 816 + 1088 + 848 + 848 + 848;
430 		lb_memory_size_c = 816 + 1088;
431 		lb_memory_size_a = 984 + 1312 + 456;
432 	} else {
433 		lb_memory_size = 816 + 1088 + 848;
434 		lb_memory_size_c = 816 + 1088 + 848;
435 		lb_memory_size_a = 984 + 1312 + 456;
436 	}
437 	*num_part_y = lb_memory_size / memory_line_size_y;
438 	*num_part_c = lb_memory_size_c / memory_line_size_c;
439 	num_partitions_a = lb_memory_size_a / memory_line_size_a;
440 
441 	if (scl_data->lb_params.alpha_en
442 			&& (num_partitions_a < *num_part_y))
443 		*num_part_y = num_partitions_a;
444 
445 	if (*num_part_y > 64)
446 		*num_part_y = 64;
447 	if (*num_part_c > 64)
448 		*num_part_c = 64;
449 
450 }
451 
452 bool dpp1_dscl_is_lb_conf_valid(int ceil_vratio, int num_partitions, int vtaps)
453 {
454 	if (ceil_vratio > 2)
455 		return vtaps <= (num_partitions - ceil_vratio + 2);
456 	else
457 		return vtaps <= num_partitions;
458 }
459 
460 /*find first match configuration which meets the min required lb size*/
461 static enum lb_memory_config dpp1_dscl_find_lb_memory_config(struct dcn10_dpp *dpp,
462 		const struct scaler_data *scl_data)
463 {
464 	int num_part_y, num_part_c;
465 	int vtaps = scl_data->taps.v_taps;
466 	int vtaps_c = scl_data->taps.v_taps_c;
467 	int ceil_vratio = dc_fixpt_ceil(scl_data->ratios.vert);
468 	int ceil_vratio_c = dc_fixpt_ceil(scl_data->ratios.vert_c);
469 	enum lb_memory_config mem_cfg = LB_MEMORY_CONFIG_0;
470 
471 	if (dpp->base.ctx->dc->debug.use_max_lb)
472 		return mem_cfg;
473 
474 	dpp->base.caps->dscl_calc_lb_num_partitions(
475 			scl_data, LB_MEMORY_CONFIG_1, &num_part_y, &num_part_c);
476 
477 	if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
478 			&& dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
479 		return LB_MEMORY_CONFIG_1;
480 
481 	dpp->base.caps->dscl_calc_lb_num_partitions(
482 			scl_data, LB_MEMORY_CONFIG_2, &num_part_y, &num_part_c);
483 
484 	if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
485 			&& dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
486 		return LB_MEMORY_CONFIG_2;
487 
488 	if (scl_data->format == PIXEL_FORMAT_420BPP8
489 			|| scl_data->format == PIXEL_FORMAT_420BPP10) {
490 		dpp->base.caps->dscl_calc_lb_num_partitions(
491 				scl_data, LB_MEMORY_CONFIG_3, &num_part_y, &num_part_c);
492 
493 		if (dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
494 				&& dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c))
495 			return LB_MEMORY_CONFIG_3;
496 	}
497 
498 	dpp->base.caps->dscl_calc_lb_num_partitions(
499 			scl_data, LB_MEMORY_CONFIG_0, &num_part_y, &num_part_c);
500 
501 	/*Ensure we can support the requested number of vtaps*/
502 	ASSERT(dpp1_dscl_is_lb_conf_valid(ceil_vratio, num_part_y, vtaps)
503 			&& dpp1_dscl_is_lb_conf_valid(ceil_vratio_c, num_part_c, vtaps_c));
504 
505 	return LB_MEMORY_CONFIG_0;
506 }
507 
508 void dpp1_dscl_set_scaler_auto_scale(
509 	struct dpp *dpp_base,
510 	const struct scaler_data *scl_data)
511 {
512 	enum lb_memory_config lb_config;
513 	struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
514 	enum dscl_mode_sel dscl_mode = dpp1_dscl_get_dscl_mode(
515 			dpp_base, scl_data, dpp_base->ctx->dc->debug.always_scale);
516 	bool ycbcr = scl_data->format >= PIXEL_FORMAT_VIDEO_BEGIN
517 				&& scl_data->format <= PIXEL_FORMAT_VIDEO_END;
518 
519 	dpp1_dscl_set_overscan(dpp, scl_data);
520 
521 	dpp1_dscl_set_otg_blank(dpp, scl_data);
522 
523 	REG_UPDATE(SCL_MODE, DSCL_MODE, dscl_mode);
524 
525 	if (dscl_mode == DSCL_MODE_DSCL_BYPASS)
526 		return;
527 
528 	lb_config =  dpp1_dscl_find_lb_memory_config(dpp, scl_data);
529 	dpp1_dscl_set_lb(dpp, &scl_data->lb_params, lb_config);
530 
531 	if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS)
532 		return;
533 
534 	/* TODO: v_min */
535 	REG_SET_3(DSCL_AUTOCAL, 0,
536 		AUTOCAL_MODE, AUTOCAL_MODE_AUTOSCALE,
537 		AUTOCAL_NUM_PIPE, 0,
538 		AUTOCAL_PIPE_ID, 0);
539 
540 	/* Black offsets */
541 	if (ycbcr)
542 		REG_SET_2(SCL_BLACK_OFFSET, 0,
543 				SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
544 				SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_CBCR);
545 	else
546 
547 		REG_SET_2(SCL_BLACK_OFFSET, 0,
548 				SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
549 				SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_RGB_Y);
550 
551 	REG_SET_4(SCL_TAP_CONTROL, 0,
552 		SCL_V_NUM_TAPS, scl_data->taps.v_taps - 1,
553 		SCL_H_NUM_TAPS, scl_data->taps.h_taps - 1,
554 		SCL_V_NUM_TAPS_C, scl_data->taps.v_taps_c - 1,
555 		SCL_H_NUM_TAPS_C, scl_data->taps.h_taps_c - 1);
556 
557 	dpp1_dscl_set_scl_filter(dpp, scl_data, ycbcr);
558 }
559 
560 
561 static void dpp1_dscl_set_manual_ratio_init(
562 		struct dcn10_dpp *dpp, const struct scaler_data *data)
563 {
564 	uint32_t init_frac = 0;
565 	uint32_t init_int = 0;
566 
567 	REG_SET(SCL_HORZ_FILTER_SCALE_RATIO, 0,
568 			SCL_H_SCALE_RATIO, dc_fixpt_u3d19(data->ratios.horz) << 5);
569 
570 	REG_SET(SCL_VERT_FILTER_SCALE_RATIO, 0,
571 			SCL_V_SCALE_RATIO, dc_fixpt_u3d19(data->ratios.vert) << 5);
572 
573 	REG_SET(SCL_HORZ_FILTER_SCALE_RATIO_C, 0,
574 			SCL_H_SCALE_RATIO_C, dc_fixpt_u3d19(data->ratios.horz_c) << 5);
575 
576 	REG_SET(SCL_VERT_FILTER_SCALE_RATIO_C, 0,
577 			SCL_V_SCALE_RATIO_C, dc_fixpt_u3d19(data->ratios.vert_c) << 5);
578 
579 	/*
580 	 * 0.24 format for fraction, first five bits zeroed
581 	 */
582 	init_frac = dc_fixpt_u0d19(data->inits.h) << 5;
583 	init_int = dc_fixpt_floor(data->inits.h);
584 	REG_SET_2(SCL_HORZ_FILTER_INIT, 0,
585 		SCL_H_INIT_FRAC, init_frac,
586 		SCL_H_INIT_INT, init_int);
587 
588 	init_frac = dc_fixpt_u0d19(data->inits.h_c) << 5;
589 	init_int = dc_fixpt_floor(data->inits.h_c);
590 	REG_SET_2(SCL_HORZ_FILTER_INIT_C, 0,
591 		SCL_H_INIT_FRAC_C, init_frac,
592 		SCL_H_INIT_INT_C, init_int);
593 
594 	init_frac = dc_fixpt_u0d19(data->inits.v) << 5;
595 	init_int = dc_fixpt_floor(data->inits.v);
596 	REG_SET_2(SCL_VERT_FILTER_INIT, 0,
597 		SCL_V_INIT_FRAC, init_frac,
598 		SCL_V_INIT_INT, init_int);
599 
600 	init_frac = dc_fixpt_u0d19(data->inits.v_bot) << 5;
601 	init_int = dc_fixpt_floor(data->inits.v_bot);
602 	REG_SET_2(SCL_VERT_FILTER_INIT_BOT, 0,
603 		SCL_V_INIT_FRAC_BOT, init_frac,
604 		SCL_V_INIT_INT_BOT, init_int);
605 
606 	init_frac = dc_fixpt_u0d19(data->inits.v_c) << 5;
607 	init_int = dc_fixpt_floor(data->inits.v_c);
608 	REG_SET_2(SCL_VERT_FILTER_INIT_C, 0,
609 		SCL_V_INIT_FRAC_C, init_frac,
610 		SCL_V_INIT_INT_C, init_int);
611 
612 	init_frac = dc_fixpt_u0d19(data->inits.v_c_bot) << 5;
613 	init_int = dc_fixpt_floor(data->inits.v_c_bot);
614 	REG_SET_2(SCL_VERT_FILTER_INIT_BOT_C, 0,
615 		SCL_V_INIT_FRAC_BOT_C, init_frac,
616 		SCL_V_INIT_INT_BOT_C, init_int);
617 }
618 
619 
620 
621 static void dpp1_dscl_set_recout(
622 			struct dcn10_dpp *dpp, const struct rect *recout)
623 {
624 	REG_SET_2(RECOUT_START, 0,
625 		/* First pixel of RECOUT */
626 			 RECOUT_START_X, recout->x,
627 		/* First line of RECOUT */
628 			 RECOUT_START_Y, recout->y);
629 
630 	REG_SET_2(RECOUT_SIZE, 0,
631 		/* Number of RECOUT horizontal pixels */
632 			 RECOUT_WIDTH, recout->width,
633 		/* Number of RECOUT vertical lines */
634 			 RECOUT_HEIGHT, recout->height
635 			 - dpp->base.ctx->dc->debug.surface_visual_confirm * 4 *
636 			 (dpp->base.inst + 1));
637 }
638 
639 /* Main function to program scaler and line buffer in manual scaling mode */
640 void dpp1_dscl_set_scaler_manual_scale(
641 	struct dpp *dpp_base,
642 	const struct scaler_data *scl_data)
643 {
644 	enum lb_memory_config lb_config;
645 	struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
646 	enum dscl_mode_sel dscl_mode = dpp1_dscl_get_dscl_mode(
647 			dpp_base, scl_data, dpp_base->ctx->dc->debug.always_scale);
648 	bool ycbcr = scl_data->format >= PIXEL_FORMAT_VIDEO_BEGIN
649 				&& scl_data->format <= PIXEL_FORMAT_VIDEO_END;
650 
651 	if (memcmp(&dpp->scl_data, scl_data, sizeof(*scl_data)) == 0)
652 		return;
653 
654 	PERF_TRACE();
655 
656 	dpp->scl_data = *scl_data;
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 		return;
673 
674 	/* LB */
675 	lb_config =  dpp1_dscl_find_lb_memory_config(dpp, scl_data);
676 	dpp1_dscl_set_lb(dpp, &scl_data->lb_params, lb_config);
677 
678 	if (dscl_mode == DSCL_MODE_SCALING_444_BYPASS)
679 		return;
680 
681 	/* Autocal off */
682 	REG_SET_3(DSCL_AUTOCAL, 0,
683 		AUTOCAL_MODE, AUTOCAL_MODE_OFF,
684 		AUTOCAL_NUM_PIPE, 0,
685 		AUTOCAL_PIPE_ID, 0);
686 
687 	/* Black offsets */
688 	if (ycbcr)
689 		REG_SET_2(SCL_BLACK_OFFSET, 0,
690 				SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
691 				SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_CBCR);
692 	else
693 
694 		REG_SET_2(SCL_BLACK_OFFSET, 0,
695 				SCL_BLACK_OFFSET_RGB_Y, BLACK_OFFSET_RGB_Y,
696 				SCL_BLACK_OFFSET_CBCR, BLACK_OFFSET_RGB_Y);
697 
698 	/* Manually calculate scale ratio and init values */
699 	dpp1_dscl_set_manual_ratio_init(dpp, scl_data);
700 
701 	/* HTaps/VTaps */
702 	REG_SET_4(SCL_TAP_CONTROL, 0,
703 		SCL_V_NUM_TAPS, scl_data->taps.v_taps - 1,
704 		SCL_H_NUM_TAPS, scl_data->taps.h_taps - 1,
705 		SCL_V_NUM_TAPS_C, scl_data->taps.v_taps_c - 1,
706 		SCL_H_NUM_TAPS_C, scl_data->taps.h_taps_c - 1);
707 
708 	dpp1_dscl_set_scl_filter(dpp, scl_data, ycbcr);
709 	PERF_TRACE();
710 }
711