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