1 /*
2  * Copyright 2017 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 
27 #include "../display_mode_lib.h"
28 #include "../display_mode_vba.h"
29 #include "../dml_inline_defs.h"
30 #include "display_rq_dlg_calc_21.h"
31 
32 /*
33  * NOTE:
34  *   This file is gcc-parseable HW gospel, coming straight from HW engineers.
35  *
36  * It doesn't adhere to Linux kernel style and sometimes will do things in odd
37  * ways. Unless there is something clearly wrong with it the code should
38  * remain as-is as it provides us with a guarantee from HW that it is correct.
39  */
40 
41 static void calculate_ttu_cursor(
42 		struct display_mode_lib *mode_lib,
43 		double *refcyc_per_req_delivery_pre_cur,
44 		double *refcyc_per_req_delivery_cur,
45 		double refclk_freq_in_mhz,
46 		double ref_freq_to_pix_freq,
47 		double hscale_pixel_rate_l,
48 		double hscl_ratio,
49 		double vratio_pre_l,
50 		double vratio_l,
51 		unsigned int cur_width,
52 		enum cursor_bpp cur_bpp);
53 
54 static unsigned int get_bytes_per_element(enum source_format_class source_format, bool is_chroma)
55 {
56 	unsigned int ret_val = 0;
57 
58 	if (source_format == dm_444_16) {
59 		if (!is_chroma)
60 			ret_val = 2;
61 	} else if (source_format == dm_444_32) {
62 		if (!is_chroma)
63 			ret_val = 4;
64 	} else if (source_format == dm_444_64) {
65 		if (!is_chroma)
66 			ret_val = 8;
67 	} else if (source_format == dm_420_8) {
68 		if (is_chroma)
69 			ret_val = 2;
70 		else
71 			ret_val = 1;
72 	} else if (source_format == dm_420_10) {
73 		if (is_chroma)
74 			ret_val = 4;
75 		else
76 			ret_val = 2;
77 	} else if (source_format == dm_444_8) {
78 		ret_val = 1;
79 	}
80 	return ret_val;
81 }
82 
83 static bool is_dual_plane(enum source_format_class source_format)
84 {
85 	bool ret_val = false;
86 
87 	if ((source_format == dm_420_8) || (source_format == dm_420_10))
88 		ret_val = true;
89 
90 	return ret_val;
91 }
92 
93 static double get_refcyc_per_delivery(
94 		struct display_mode_lib *mode_lib,
95 		double refclk_freq_in_mhz,
96 		double pclk_freq_in_mhz,
97 		bool odm_combine,
98 		unsigned int recout_width,
99 		unsigned int hactive,
100 		double vratio,
101 		double hscale_pixel_rate,
102 		unsigned int delivery_width,
103 		unsigned int req_per_swath_ub)
104 {
105 	double refcyc_per_delivery = 0.0;
106 
107 	if (vratio <= 1.0) {
108 		if (odm_combine)
109 			refcyc_per_delivery = (double) refclk_freq_in_mhz
110 					* dml_min((double) recout_width, (double) hactive / 2.0)
111 					/ pclk_freq_in_mhz / (double) req_per_swath_ub;
112 		else
113 			refcyc_per_delivery = (double) refclk_freq_in_mhz * (double) recout_width
114 					/ pclk_freq_in_mhz / (double) req_per_swath_ub;
115 	} else {
116 		refcyc_per_delivery = (double) refclk_freq_in_mhz * (double) delivery_width
117 				/ (double) hscale_pixel_rate / (double) req_per_swath_ub;
118 	}
119 
120 	dml_print("DML_DLG: %s: refclk_freq_in_mhz = %3.2f\n", __func__, refclk_freq_in_mhz);
121 	dml_print("DML_DLG: %s: pclk_freq_in_mhz   = %3.2f\n", __func__, pclk_freq_in_mhz);
122 	dml_print("DML_DLG: %s: recout_width       = %d\n", __func__, recout_width);
123 	dml_print("DML_DLG: %s: vratio             = %3.2f\n", __func__, vratio);
124 	dml_print("DML_DLG: %s: req_per_swath_ub   = %d\n", __func__, req_per_swath_ub);
125 	dml_print("DML_DLG: %s: refcyc_per_delivery= %3.2f\n", __func__, refcyc_per_delivery);
126 
127 	return refcyc_per_delivery;
128 
129 }
130 
131 static unsigned int get_blk_size_bytes(const enum source_macro_tile_size tile_size)
132 {
133 	if (tile_size == dm_256k_tile)
134 		return (256 * 1024);
135 	else if (tile_size == dm_64k_tile)
136 		return (64 * 1024);
137 	else
138 		return (4 * 1024);
139 }
140 
141 static void extract_rq_sizing_regs(
142 		struct display_mode_lib *mode_lib,
143 		display_data_rq_regs_st *rq_regs,
144 		const display_data_rq_sizing_params_st rq_sizing)
145 {
146 	dml_print("DML_DLG: %s: rq_sizing param\n", __func__);
147 	print__data_rq_sizing_params_st(mode_lib, rq_sizing);
148 
149 	rq_regs->chunk_size = dml_log2(rq_sizing.chunk_bytes) - 10;
150 
151 	if (rq_sizing.min_chunk_bytes == 0)
152 		rq_regs->min_chunk_size = 0;
153 	else
154 		rq_regs->min_chunk_size = dml_log2(rq_sizing.min_chunk_bytes) - 8 + 1;
155 
156 	rq_regs->meta_chunk_size = dml_log2(rq_sizing.meta_chunk_bytes) - 10;
157 	if (rq_sizing.min_meta_chunk_bytes == 0)
158 		rq_regs->min_meta_chunk_size = 0;
159 	else
160 		rq_regs->min_meta_chunk_size = dml_log2(rq_sizing.min_meta_chunk_bytes) - 6 + 1;
161 
162 	rq_regs->dpte_group_size = dml_log2(rq_sizing.dpte_group_bytes) - 6;
163 	rq_regs->mpte_group_size = dml_log2(rq_sizing.mpte_group_bytes) - 6;
164 }
165 
166 static void extract_rq_regs(
167 		struct display_mode_lib *mode_lib,
168 		display_rq_regs_st *rq_regs,
169 		const display_rq_params_st rq_param)
170 {
171 	unsigned int detile_buf_size_in_bytes = mode_lib->ip.det_buffer_size_kbytes * 1024;
172 	unsigned int detile_buf_plane1_addr = 0;
173 
174 	extract_rq_sizing_regs(mode_lib, &(rq_regs->rq_regs_l), rq_param.sizing.rq_l);
175 
176 	rq_regs->rq_regs_l.pte_row_height_linear = dml_floor(
177 			dml_log2(rq_param.dlg.rq_l.dpte_row_height),
178 			1) - 3;
179 
180 	if (rq_param.yuv420) {
181 		extract_rq_sizing_regs(mode_lib, &(rq_regs->rq_regs_c), rq_param.sizing.rq_c);
182 		rq_regs->rq_regs_c.pte_row_height_linear = dml_floor(
183 				dml_log2(rq_param.dlg.rq_c.dpte_row_height),
184 				1) - 3;
185 	}
186 
187 	rq_regs->rq_regs_l.swath_height = dml_log2(rq_param.dlg.rq_l.swath_height);
188 	rq_regs->rq_regs_c.swath_height = dml_log2(rq_param.dlg.rq_c.swath_height);
189 
190 	// FIXME: take the max between luma, chroma chunk size?
191 	// okay for now, as we are setting chunk_bytes to 8kb anyways
192 	if (rq_param.sizing.rq_l.chunk_bytes >= 32 * 1024) { //32kb
193 		rq_regs->drq_expansion_mode = 0;
194 	} else {
195 		rq_regs->drq_expansion_mode = 2;
196 	}
197 	rq_regs->prq_expansion_mode = 1;
198 	rq_regs->mrq_expansion_mode = 1;
199 	rq_regs->crq_expansion_mode = 1;
200 
201 	if (rq_param.yuv420) {
202 		if ((double) rq_param.misc.rq_l.stored_swath_bytes
203 				/ (double) rq_param.misc.rq_c.stored_swath_bytes <= 1.5) {
204 			detile_buf_plane1_addr = (detile_buf_size_in_bytes / 2.0 / 64.0); // half to chroma
205 		} else {
206 			detile_buf_plane1_addr = dml_round_to_multiple(
207 					(unsigned int) ((2.0 * detile_buf_size_in_bytes) / 3.0),
208 					256,
209 					0) / 64.0; // 2/3 to chroma
210 		}
211 	}
212 	rq_regs->plane1_base_address = detile_buf_plane1_addr;
213 }
214 
215 static void handle_det_buf_split(
216 		struct display_mode_lib *mode_lib,
217 		display_rq_params_st *rq_param,
218 		const display_pipe_source_params_st pipe_src_param)
219 {
220 	unsigned int total_swath_bytes = 0;
221 	unsigned int swath_bytes_l = 0;
222 	unsigned int swath_bytes_c = 0;
223 	unsigned int full_swath_bytes_packed_l = 0;
224 	unsigned int full_swath_bytes_packed_c = 0;
225 	bool req128_l = false;
226 	bool req128_c = false;
227 	bool surf_linear = (pipe_src_param.sw_mode == dm_sw_linear);
228 	bool surf_vert = (pipe_src_param.source_scan == dm_vert);
229 	unsigned int log2_swath_height_l = 0;
230 	unsigned int log2_swath_height_c = 0;
231 	unsigned int detile_buf_size_in_bytes = mode_lib->ip.det_buffer_size_kbytes * 1024;
232 
233 	full_swath_bytes_packed_l = rq_param->misc.rq_l.full_swath_bytes;
234 	full_swath_bytes_packed_c = rq_param->misc.rq_c.full_swath_bytes;
235 
236 	if (rq_param->yuv420_10bpc) {
237 		full_swath_bytes_packed_l = dml_round_to_multiple(
238 				rq_param->misc.rq_l.full_swath_bytes * 2 / 3,
239 				256,
240 				1) + 256;
241 		full_swath_bytes_packed_c = dml_round_to_multiple(
242 				rq_param->misc.rq_c.full_swath_bytes * 2 / 3,
243 				256,
244 				1) + 256;
245 	}
246 
247 	if (rq_param->yuv420) {
248 		total_swath_bytes = 2 * full_swath_bytes_packed_l + 2 * full_swath_bytes_packed_c;
249 
250 		if (total_swath_bytes <= detile_buf_size_in_bytes) { //full 256b request
251 			req128_l = false;
252 			req128_c = false;
253 			swath_bytes_l = full_swath_bytes_packed_l;
254 			swath_bytes_c = full_swath_bytes_packed_c;
255 		} else { //128b request (for luma only for yuv420 8bpc)
256 			req128_l = true;
257 			req128_c = false;
258 			swath_bytes_l = full_swath_bytes_packed_l / 2;
259 			swath_bytes_c = full_swath_bytes_packed_c;
260 		}
261 		// Note: assumption, the config that pass in will fit into
262 		//       the detiled buffer.
263 	} else {
264 		total_swath_bytes = 2 * full_swath_bytes_packed_l;
265 
266 		if (total_swath_bytes <= detile_buf_size_in_bytes)
267 			req128_l = false;
268 		else
269 			req128_l = true;
270 
271 		swath_bytes_l = total_swath_bytes;
272 		swath_bytes_c = 0;
273 	}
274 	rq_param->misc.rq_l.stored_swath_bytes = swath_bytes_l;
275 	rq_param->misc.rq_c.stored_swath_bytes = swath_bytes_c;
276 
277 	if (surf_linear) {
278 		log2_swath_height_l = 0;
279 		log2_swath_height_c = 0;
280 	} else if (!surf_vert) {
281 		log2_swath_height_l = dml_log2(rq_param->misc.rq_l.blk256_height) - req128_l;
282 		log2_swath_height_c = dml_log2(rq_param->misc.rq_c.blk256_height) - req128_c;
283 	} else {
284 		log2_swath_height_l = dml_log2(rq_param->misc.rq_l.blk256_width) - req128_l;
285 		log2_swath_height_c = dml_log2(rq_param->misc.rq_c.blk256_width) - req128_c;
286 	}
287 	rq_param->dlg.rq_l.swath_height = 1 << log2_swath_height_l;
288 	rq_param->dlg.rq_c.swath_height = 1 << log2_swath_height_c;
289 
290 	dml_print("DML_DLG: %s: req128_l = %0d\n", __func__, req128_l);
291 	dml_print("DML_DLG: %s: req128_c = %0d\n", __func__, req128_c);
292 	dml_print(
293 			"DML_DLG: %s: full_swath_bytes_packed_l = %0d\n",
294 			__func__,
295 			full_swath_bytes_packed_l);
296 	dml_print(
297 			"DML_DLG: %s: full_swath_bytes_packed_c = %0d\n",
298 			__func__,
299 			full_swath_bytes_packed_c);
300 }
301 
302 static void get_meta_and_pte_attr(
303 		struct display_mode_lib *mode_lib,
304 		display_data_rq_dlg_params_st *rq_dlg_param,
305 		display_data_rq_misc_params_st *rq_misc_param,
306 		display_data_rq_sizing_params_st *rq_sizing_param,
307 		unsigned int vp_width,
308 		unsigned int vp_height,
309 		unsigned int data_pitch,
310 		unsigned int meta_pitch,
311 		unsigned int source_format,
312 		unsigned int tiling,
313 		unsigned int macro_tile_size,
314 		unsigned int source_scan,
315 		unsigned int hostvm_enable,
316 		unsigned int is_chroma)
317 {
318 	bool surf_linear = (tiling == dm_sw_linear);
319 	bool surf_vert = (source_scan == dm_vert);
320 
321 	unsigned int bytes_per_element;
322 	unsigned int bytes_per_element_y = get_bytes_per_element(
323 			(enum source_format_class) (source_format),
324 			false);
325 	unsigned int bytes_per_element_c = get_bytes_per_element(
326 			(enum source_format_class) (source_format),
327 			true);
328 
329 	unsigned int blk256_width = 0;
330 	unsigned int blk256_height = 0;
331 
332 	unsigned int blk256_width_y = 0;
333 	unsigned int blk256_height_y = 0;
334 	unsigned int blk256_width_c = 0;
335 	unsigned int blk256_height_c = 0;
336 	unsigned int log2_bytes_per_element;
337 	unsigned int log2_blk256_width;
338 	unsigned int log2_blk256_height;
339 	unsigned int blk_bytes;
340 	unsigned int log2_blk_bytes;
341 	unsigned int log2_blk_height;
342 	unsigned int log2_blk_width;
343 	unsigned int log2_meta_req_bytes;
344 	unsigned int log2_meta_req_height;
345 	unsigned int log2_meta_req_width;
346 	unsigned int meta_req_width;
347 	unsigned int meta_req_height;
348 	unsigned int log2_meta_row_height;
349 	unsigned int meta_row_width_ub;
350 	unsigned int log2_meta_chunk_bytes;
351 	unsigned int log2_meta_chunk_height;
352 
353 	//full sized meta chunk width in unit of data elements
354 	unsigned int log2_meta_chunk_width;
355 	unsigned int log2_min_meta_chunk_bytes;
356 	unsigned int min_meta_chunk_width;
357 	unsigned int meta_chunk_width;
358 	unsigned int meta_chunk_per_row_int;
359 	unsigned int meta_row_remainder;
360 	unsigned int meta_chunk_threshold;
361 	unsigned int meta_blk_bytes;
362 	unsigned int meta_blk_height;
363 	unsigned int meta_blk_width;
364 	unsigned int meta_surface_bytes;
365 	unsigned int vmpg_bytes;
366 	unsigned int meta_pte_req_per_frame_ub;
367 	unsigned int meta_pte_bytes_per_frame_ub;
368 	const unsigned int log2_vmpg_bytes = dml_log2(mode_lib->soc.vmm_page_size_bytes);
369 	const unsigned int dpte_buf_in_pte_reqs =
370 		mode_lib->ip.dpte_buffer_size_in_pte_reqs_luma + mode_lib->ip.dpte_buffer_size_in_pte_reqs_chroma;
371 	const unsigned int pde_proc_buffer_size_64k_reqs =
372 			mode_lib->ip.pde_proc_buffer_size_64k_reqs;
373 
374 	unsigned int log2_vmpg_height = 0;
375 	unsigned int log2_vmpg_width = 0;
376 	unsigned int log2_dpte_req_height_ptes = 0;
377 	unsigned int log2_dpte_req_height = 0;
378 	unsigned int log2_dpte_req_width = 0;
379 	unsigned int log2_dpte_row_height_linear = 0;
380 	unsigned int log2_dpte_row_height = 0;
381 	unsigned int log2_dpte_group_width = 0;
382 	unsigned int dpte_row_width_ub = 0;
383 	unsigned int dpte_req_height = 0;
384 	unsigned int dpte_req_width = 0;
385 	unsigned int dpte_group_width = 0;
386 	unsigned int log2_dpte_group_bytes = 0;
387 	unsigned int log2_dpte_group_length = 0;
388 	unsigned int pde_buf_entries;
389 	bool yuv420 = (source_format == dm_420_8 || source_format == dm_420_10);
390 
391 	Calculate256BBlockSizes(
392 			(enum source_format_class) (source_format),
393 			(enum dm_swizzle_mode) (tiling),
394 			bytes_per_element_y,
395 			bytes_per_element_c,
396 			&blk256_height_y,
397 			&blk256_height_c,
398 			&blk256_width_y,
399 			&blk256_width_c);
400 
401 	if (!is_chroma) {
402 		blk256_width = blk256_width_y;
403 		blk256_height = blk256_height_y;
404 		bytes_per_element = bytes_per_element_y;
405 	} else {
406 		blk256_width = blk256_width_c;
407 		blk256_height = blk256_height_c;
408 		bytes_per_element = bytes_per_element_c;
409 	}
410 
411 	log2_bytes_per_element = dml_log2(bytes_per_element);
412 
413 	dml_print("DML_DLG: %s: surf_linear        = %d\n", __func__, surf_linear);
414 	dml_print("DML_DLG: %s: surf_vert          = %d\n", __func__, surf_vert);
415 	dml_print("DML_DLG: %s: blk256_width       = %d\n", __func__, blk256_width);
416 	dml_print("DML_DLG: %s: blk256_height      = %d\n", __func__, blk256_height);
417 
418 	log2_blk256_width = dml_log2((double) blk256_width);
419 	log2_blk256_height = dml_log2((double) blk256_height);
420 	blk_bytes = surf_linear ?
421 			256 : get_blk_size_bytes((enum source_macro_tile_size) macro_tile_size);
422 	log2_blk_bytes = dml_log2((double) blk_bytes);
423 	log2_blk_height = 0;
424 	log2_blk_width = 0;
425 
426 	// remember log rule
427 	// "+" in log is multiply
428 	// "-" in log is divide
429 	// "/2" is like square root
430 	// blk is vertical biased
431 	if (tiling != dm_sw_linear)
432 		log2_blk_height = log2_blk256_height
433 				+ dml_ceil((double) (log2_blk_bytes - 8) / 2.0, 1);
434 	else
435 		log2_blk_height = 0;  // blk height of 1
436 
437 	log2_blk_width = log2_blk_bytes - log2_bytes_per_element - log2_blk_height;
438 
439 	if (!surf_vert) {
440 		rq_dlg_param->swath_width_ub = dml_round_to_multiple(vp_width - 1, blk256_width, 1)
441 				+ blk256_width;
442 		rq_dlg_param->req_per_swath_ub = rq_dlg_param->swath_width_ub >> log2_blk256_width;
443 	} else {
444 		rq_dlg_param->swath_width_ub = dml_round_to_multiple(
445 				vp_height - 1,
446 				blk256_height,
447 				1) + blk256_height;
448 		rq_dlg_param->req_per_swath_ub = rq_dlg_param->swath_width_ub >> log2_blk256_height;
449 	}
450 
451 	if (!surf_vert)
452 		rq_misc_param->full_swath_bytes = rq_dlg_param->swath_width_ub * blk256_height
453 				* bytes_per_element;
454 	else
455 		rq_misc_param->full_swath_bytes = rq_dlg_param->swath_width_ub * blk256_width
456 				* bytes_per_element;
457 
458 	rq_misc_param->blk256_height = blk256_height;
459 	rq_misc_param->blk256_width = blk256_width;
460 
461 	// -------
462 	// meta
463 	// -------
464 	log2_meta_req_bytes = 6; // meta request is 64b and is 8x8byte meta element
465 
466 	// each 64b meta request for dcn is 8x8 meta elements and
467 	// a meta element covers one 256b block of the the data surface.
468 	log2_meta_req_height = log2_blk256_height + 3; // meta req is 8x8 byte, each byte represent 1 blk256
469 	log2_meta_req_width = log2_meta_req_bytes + 8 - log2_bytes_per_element
470 			- log2_meta_req_height;
471 	meta_req_width = 1 << log2_meta_req_width;
472 	meta_req_height = 1 << log2_meta_req_height;
473 	log2_meta_row_height = 0;
474 	meta_row_width_ub = 0;
475 
476 	// the dimensions of a meta row are meta_row_width x meta_row_height in elements.
477 	// calculate upper bound of the meta_row_width
478 	if (!surf_vert) {
479 		log2_meta_row_height = log2_meta_req_height;
480 		meta_row_width_ub = dml_round_to_multiple(vp_width - 1, meta_req_width, 1)
481 				+ meta_req_width;
482 		rq_dlg_param->meta_req_per_row_ub = meta_row_width_ub / meta_req_width;
483 	} else {
484 		log2_meta_row_height = log2_meta_req_width;
485 		meta_row_width_ub = dml_round_to_multiple(vp_height - 1, meta_req_height, 1)
486 				+ meta_req_height;
487 		rq_dlg_param->meta_req_per_row_ub = meta_row_width_ub / meta_req_height;
488 	}
489 	rq_dlg_param->meta_bytes_per_row_ub = rq_dlg_param->meta_req_per_row_ub * 64;
490 
491 	rq_dlg_param->meta_row_height = 1 << log2_meta_row_height;
492 
493 	log2_meta_chunk_bytes = dml_log2(rq_sizing_param->meta_chunk_bytes);
494 	log2_meta_chunk_height = log2_meta_row_height;
495 
496 	//full sized meta chunk width in unit of data elements
497 	log2_meta_chunk_width = log2_meta_chunk_bytes + 8 - log2_bytes_per_element
498 			- log2_meta_chunk_height;
499 	log2_min_meta_chunk_bytes = dml_log2(rq_sizing_param->min_meta_chunk_bytes);
500 	min_meta_chunk_width = 1
501 			<< (log2_min_meta_chunk_bytes + 8 - log2_bytes_per_element
502 					- log2_meta_chunk_height);
503 	meta_chunk_width = 1 << log2_meta_chunk_width;
504 	meta_chunk_per_row_int = (unsigned int) (meta_row_width_ub / meta_chunk_width);
505 	meta_row_remainder = meta_row_width_ub % meta_chunk_width;
506 	meta_chunk_threshold = 0;
507 	meta_blk_bytes = 4096;
508 	meta_blk_height = blk256_height * 64;
509 	meta_blk_width = meta_blk_bytes * 256 / bytes_per_element / meta_blk_height;
510 	meta_surface_bytes = meta_pitch
511 			* (dml_round_to_multiple(vp_height - 1, meta_blk_height, 1)
512 					+ meta_blk_height) * bytes_per_element / 256;
513 	vmpg_bytes = mode_lib->soc.vmm_page_size_bytes;
514 	meta_pte_req_per_frame_ub = (dml_round_to_multiple(
515 			meta_surface_bytes - vmpg_bytes,
516 			8 * vmpg_bytes,
517 			1) + 8 * vmpg_bytes) / (8 * vmpg_bytes);
518 	meta_pte_bytes_per_frame_ub = meta_pte_req_per_frame_ub * 64; //64B mpte request
519 	rq_dlg_param->meta_pte_bytes_per_frame_ub = meta_pte_bytes_per_frame_ub;
520 
521 	dml_print("DML_DLG: %s: meta_blk_height             = %d\n", __func__, meta_blk_height);
522 	dml_print("DML_DLG: %s: meta_blk_width              = %d\n", __func__, meta_blk_width);
523 	dml_print("DML_DLG: %s: meta_surface_bytes          = %d\n", __func__, meta_surface_bytes);
524 	dml_print(
525 			"DML_DLG: %s: meta_pte_req_per_frame_ub   = %d\n",
526 			__func__,
527 			meta_pte_req_per_frame_ub);
528 	dml_print(
529 			"DML_DLG: %s: meta_pte_bytes_per_frame_ub = %d\n",
530 			__func__,
531 			meta_pte_bytes_per_frame_ub);
532 
533 	if (!surf_vert)
534 		meta_chunk_threshold = 2 * min_meta_chunk_width - meta_req_width;
535 	else
536 		meta_chunk_threshold = 2 * min_meta_chunk_width - meta_req_height;
537 
538 	if (meta_row_remainder <= meta_chunk_threshold)
539 		rq_dlg_param->meta_chunks_per_row_ub = meta_chunk_per_row_int + 1;
540 	else
541 		rq_dlg_param->meta_chunks_per_row_ub = meta_chunk_per_row_int + 2;
542 
543 	// ------
544 	// dpte
545 	// ------
546 	if (surf_linear) {
547 		log2_vmpg_height = 0;   // one line high
548 	} else {
549 		log2_vmpg_height = (log2_vmpg_bytes - 8) / 2 + log2_blk256_height;
550 	}
551 	log2_vmpg_width = log2_vmpg_bytes - log2_bytes_per_element - log2_vmpg_height;
552 
553 	// only 3 possible shapes for dpte request in dimensions of ptes: 8x1, 4x2, 2x4.
554 	if (surf_linear) { //one 64B PTE request returns 8 PTEs
555 		log2_dpte_req_height_ptes = 0;
556 		log2_dpte_req_width = log2_vmpg_width + 3;
557 		log2_dpte_req_height = 0;
558 	} else if (log2_blk_bytes == 12) { //4KB tile means 4kB page size
559 					   //one 64B req gives 8x1 PTEs for 4KB tile
560 		log2_dpte_req_height_ptes = 0;
561 		log2_dpte_req_width = log2_blk_width + 3;
562 		log2_dpte_req_height = log2_blk_height + 0;
563 	} else if ((log2_blk_bytes >= 16) && (log2_vmpg_bytes == 12)) { // tile block >= 64KB
564 									//two 64B reqs of 2x4 PTEs give 16 PTEs to cover 64KB
565 		log2_dpte_req_height_ptes = 4;
566 		log2_dpte_req_width = log2_blk256_width + 4; // log2_64KB_width
567 		log2_dpte_req_height = log2_blk256_height + 4; // log2_64KB_height
568 	} else { //64KB page size and must 64KB tile block
569 		 //one 64B req gives 8x1 PTEs for 64KB tile
570 		log2_dpte_req_height_ptes = 0;
571 		log2_dpte_req_width = log2_blk_width + 3;
572 		log2_dpte_req_height = log2_blk_height + 0;
573 	}
574 
575 	// The dpte request dimensions in data elements is dpte_req_width x dpte_req_height
576 	// log2_vmpg_width is how much 1 pte represent, now calculating how much a 64b pte req represent
577 	// That depends on the pte shape (i.e. 8x1, 4x2, 2x4)
578 	//log2_dpte_req_height    = log2_vmpg_height + log2_dpte_req_height_ptes;
579 	//log2_dpte_req_width     = log2_vmpg_width + log2_dpte_req_width_ptes;
580 	dpte_req_height = 1 << log2_dpte_req_height;
581 	dpte_req_width = 1 << log2_dpte_req_width;
582 
583 	// calculate pitch dpte row buffer can hold
584 	// round the result down to a power of two.
585 	pde_buf_entries =
586 			yuv420 ? (pde_proc_buffer_size_64k_reqs >> 1) : pde_proc_buffer_size_64k_reqs;
587 	if (surf_linear) {
588 		unsigned int dpte_row_height;
589 
590 		log2_dpte_row_height_linear = dml_floor(
591 				dml_log2(
592 						dml_min(
593 								64 * 1024 * pde_buf_entries
594 										/ bytes_per_element,
595 								dpte_buf_in_pte_reqs
596 										* dpte_req_width)
597 								/ data_pitch),
598 				1);
599 
600 		ASSERT(log2_dpte_row_height_linear >= 3);
601 
602 		if (log2_dpte_row_height_linear > 7)
603 			log2_dpte_row_height_linear = 7;
604 
605 		log2_dpte_row_height = log2_dpte_row_height_linear;
606 		// For linear, the dpte row is pitch dependent and the pte requests wrap at the pitch boundary.
607 		// the dpte_row_width_ub is the upper bound of data_pitch*dpte_row_height in elements with this unique buffering.
608 		dpte_row_height = 1 << log2_dpte_row_height;
609 		dpte_row_width_ub = dml_round_to_multiple(
610 				data_pitch * dpte_row_height - 1,
611 				dpte_req_width,
612 				1) + dpte_req_width;
613 		rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_width;
614 	} else {
615 		// the upper bound of the dpte_row_width without dependency on viewport position follows.
616 		// for tiled mode, row height is the same as req height and row store up to vp size upper bound
617 		if (!surf_vert) {
618 			log2_dpte_row_height = log2_dpte_req_height;
619 			dpte_row_width_ub = dml_round_to_multiple(vp_width - 1, dpte_req_width, 1)
620 					+ dpte_req_width;
621 			rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_width;
622 		} else {
623 			log2_dpte_row_height =
624 					(log2_blk_width < log2_dpte_req_width) ?
625 							log2_blk_width : log2_dpte_req_width;
626 			dpte_row_width_ub = dml_round_to_multiple(vp_height - 1, dpte_req_height, 1)
627 					+ dpte_req_height;
628 			rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_height;
629 		}
630 	}
631 	if (log2_blk_bytes >= 16 && log2_vmpg_bytes == 12) // tile block >= 64KB
632 		rq_dlg_param->dpte_bytes_per_row_ub = rq_dlg_param->dpte_req_per_row_ub * 128; //2*64B dpte request
633 	else
634 		rq_dlg_param->dpte_bytes_per_row_ub = rq_dlg_param->dpte_req_per_row_ub * 64; //64B dpte request
635 
636 	rq_dlg_param->dpte_row_height = 1 << log2_dpte_row_height;
637 
638 	// the dpte_group_bytes is reduced for the specific case of vertical
639 	// access of a tile surface that has dpte request of 8x1 ptes.
640 
641 	if (hostvm_enable)
642 		rq_sizing_param->dpte_group_bytes = 512;
643 	else {
644 		if (!surf_linear & (log2_dpte_req_height_ptes == 0) & surf_vert) //reduced, in this case, will have page fault within a group
645 			rq_sizing_param->dpte_group_bytes = 512;
646 		else
647 			//full size
648 			rq_sizing_param->dpte_group_bytes = 2048;
649 	}
650 
651 	//since pte request size is 64byte, the number of data pte requests per full sized group is as follows.
652 	log2_dpte_group_bytes = dml_log2(rq_sizing_param->dpte_group_bytes);
653 	log2_dpte_group_length = log2_dpte_group_bytes - 6; //length in 64b requests
654 
655 	// full sized data pte group width in elements
656 	if (!surf_vert)
657 		log2_dpte_group_width = log2_dpte_group_length + log2_dpte_req_width;
658 	else
659 		log2_dpte_group_width = log2_dpte_group_length + log2_dpte_req_height;
660 
661 	//But if the tile block >=64KB and the page size is 4KB, then each dPTE request is 2*64B
662 	if ((log2_blk_bytes >= 16) && (log2_vmpg_bytes == 12)) // tile block >= 64KB
663 		log2_dpte_group_width = log2_dpte_group_width - 1;
664 
665 	dpte_group_width = 1 << log2_dpte_group_width;
666 
667 	// since dpte groups are only aligned to dpte_req_width and not dpte_group_width,
668 	// the upper bound for the dpte groups per row is as follows.
669 	rq_dlg_param->dpte_groups_per_row_ub = dml_ceil(
670 			(double) dpte_row_width_ub / dpte_group_width,
671 			1);
672 }
673 
674 static void get_surf_rq_param(
675 		struct display_mode_lib *mode_lib,
676 		display_data_rq_sizing_params_st *rq_sizing_param,
677 		display_data_rq_dlg_params_st *rq_dlg_param,
678 		display_data_rq_misc_params_st *rq_misc_param,
679 		const display_pipe_params_st pipe_param,
680 		bool is_chroma)
681 {
682 	bool mode_422 = false;
683 	unsigned int vp_width = 0;
684 	unsigned int vp_height = 0;
685 	unsigned int data_pitch = 0;
686 	unsigned int meta_pitch = 0;
687 	unsigned int ppe = mode_422 ? 2 : 1;
688 
689 	// FIXME check if ppe apply for both luma and chroma in 422 case
690 	if (is_chroma) {
691 		vp_width = pipe_param.src.viewport_width_c / ppe;
692 		vp_height = pipe_param.src.viewport_height_c;
693 		data_pitch = pipe_param.src.data_pitch_c;
694 		meta_pitch = pipe_param.src.meta_pitch_c;
695 	} else {
696 		vp_width = pipe_param.src.viewport_width / ppe;
697 		vp_height = pipe_param.src.viewport_height;
698 		data_pitch = pipe_param.src.data_pitch;
699 		meta_pitch = pipe_param.src.meta_pitch;
700 	}
701 
702 	if (pipe_param.dest.odm_combine) {
703 		unsigned int access_dir;
704 		unsigned int full_src_vp_width;
705 		unsigned int hactive_half;
706 		unsigned int src_hactive_half;
707 		access_dir = (pipe_param.src.source_scan == dm_vert); // vp access direction: horizontal or vertical accessed
708 		hactive_half  = pipe_param.dest.hactive / 2;
709 		if (is_chroma) {
710 			full_src_vp_width = pipe_param.scale_ratio_depth.hscl_ratio_c * pipe_param.dest.full_recout_width;
711 			src_hactive_half  = pipe_param.scale_ratio_depth.hscl_ratio_c * hactive_half;
712 		} else {
713 			full_src_vp_width = pipe_param.scale_ratio_depth.hscl_ratio * pipe_param.dest.full_recout_width;
714 			src_hactive_half  = pipe_param.scale_ratio_depth.hscl_ratio * hactive_half;
715 		}
716 
717 		if (access_dir == 0) {
718 			vp_width = dml_min(full_src_vp_width, src_hactive_half);
719 			dml_print("DML_DLG: %s: vp_width = %d\n", __func__, vp_width);
720 		} else {
721 			vp_height = dml_min(full_src_vp_width, src_hactive_half);
722 			dml_print("DML_DLG: %s: vp_height = %d\n", __func__, vp_height);
723 
724 		}
725 		dml_print("DML_DLG: %s: full_src_vp_width = %d\n", __func__, full_src_vp_width);
726 		dml_print("DML_DLG: %s: hactive_half = %d\n", __func__, hactive_half);
727 		dml_print("DML_DLG: %s: src_hactive_half = %d\n", __func__, src_hactive_half);
728 	}
729 	rq_sizing_param->chunk_bytes = 8192;
730 
731 	if (rq_sizing_param->chunk_bytes == 64 * 1024)
732 		rq_sizing_param->min_chunk_bytes = 0;
733 	else
734 		rq_sizing_param->min_chunk_bytes = 1024;
735 
736 	rq_sizing_param->meta_chunk_bytes = 2048;
737 	rq_sizing_param->min_meta_chunk_bytes = 256;
738 
739 	if (pipe_param.src.hostvm)
740 		rq_sizing_param->mpte_group_bytes = 512;
741 	else
742 		rq_sizing_param->mpte_group_bytes = 2048;
743 
744 	get_meta_and_pte_attr(
745 			mode_lib,
746 			rq_dlg_param,
747 			rq_misc_param,
748 			rq_sizing_param,
749 			vp_width,
750 			vp_height,
751 			data_pitch,
752 			meta_pitch,
753 			pipe_param.src.source_format,
754 			pipe_param.src.sw_mode,
755 			pipe_param.src.macro_tile_size,
756 			pipe_param.src.source_scan,
757 			pipe_param.src.hostvm,
758 			is_chroma);
759 }
760 
761 static void dml_rq_dlg_get_rq_params(
762 		struct display_mode_lib *mode_lib,
763 		display_rq_params_st *rq_param,
764 		const display_pipe_params_st pipe_param)
765 {
766 	// get param for luma surface
767 	rq_param->yuv420 = pipe_param.src.source_format == dm_420_8
768 			|| pipe_param.src.source_format == dm_420_10;
769 	rq_param->yuv420_10bpc = pipe_param.src.source_format == dm_420_10;
770 
771 	get_surf_rq_param(
772 			mode_lib,
773 			&(rq_param->sizing.rq_l),
774 			&(rq_param->dlg.rq_l),
775 			&(rq_param->misc.rq_l),
776 			pipe_param,
777 			0);
778 
779 	if (is_dual_plane((enum source_format_class) (pipe_param.src.source_format))) {
780 		// get param for chroma surface
781 		get_surf_rq_param(
782 				mode_lib,
783 				&(rq_param->sizing.rq_c),
784 				&(rq_param->dlg.rq_c),
785 				&(rq_param->misc.rq_c),
786 				pipe_param,
787 				1);
788 	}
789 
790 	// calculate how to split the det buffer space between luma and chroma
791 	handle_det_buf_split(mode_lib, rq_param, pipe_param.src);
792 	print__rq_params_st(mode_lib, *rq_param);
793 }
794 
795 void dml21_rq_dlg_get_rq_reg(
796 		struct display_mode_lib *mode_lib,
797 		display_rq_regs_st *rq_regs,
798 		const display_pipe_params_st pipe_param)
799 {
800 	display_rq_params_st rq_param = {0};
801 
802 	memset(rq_regs, 0, sizeof(*rq_regs));
803 	dml_rq_dlg_get_rq_params(mode_lib, &rq_param, pipe_param);
804 	extract_rq_regs(mode_lib, rq_regs, rq_param);
805 
806 	print__rq_regs_st(mode_lib, *rq_regs);
807 }
808 
809 // Note: currently taken in as is.
810 // Nice to decouple code from hw register implement and extract code that are repeated for luma and chroma.
811 static void dml_rq_dlg_get_dlg_params(
812 		struct display_mode_lib *mode_lib,
813 		const display_e2e_pipe_params_st *e2e_pipe_param,
814 		const unsigned int num_pipes,
815 		const unsigned int pipe_idx,
816 		display_dlg_regs_st *disp_dlg_regs,
817 		display_ttu_regs_st *disp_ttu_regs,
818 		const display_rq_dlg_params_st rq_dlg_param,
819 		const display_dlg_sys_params_st dlg_sys_param,
820 		const bool cstate_en,
821 		const bool pstate_en)
822 {
823 	const display_pipe_source_params_st *src = &e2e_pipe_param[pipe_idx].pipe.src;
824 	const display_pipe_dest_params_st *dst = &e2e_pipe_param[pipe_idx].pipe.dest;
825 	const display_output_params_st *dout = &e2e_pipe_param[pipe_idx].dout;
826 	const display_clocks_and_cfg_st *clks = &e2e_pipe_param[pipe_idx].clks_cfg;
827 	const scaler_ratio_depth_st *scl = &e2e_pipe_param[pipe_idx].pipe.scale_ratio_depth;
828 	const scaler_taps_st *taps = &e2e_pipe_param[pipe_idx].pipe.scale_taps;
829 
830 	// -------------------------
831 	// Section 1.15.2.1: OTG dependent Params
832 	// -------------------------
833 	// Timing
834 	unsigned int htotal = dst->htotal;
835 	//    unsigned int hblank_start = dst.hblank_start; // TODO: Remove
836 	unsigned int hblank_end = dst->hblank_end;
837 	unsigned int vblank_start = dst->vblank_start;
838 	unsigned int vblank_end = dst->vblank_end;
839 	unsigned int min_vblank = mode_lib->ip.min_vblank_lines;
840 
841 	double dppclk_freq_in_mhz = clks->dppclk_mhz;
842 	double dispclk_freq_in_mhz = clks->dispclk_mhz;
843 	double refclk_freq_in_mhz = clks->refclk_mhz;
844 	double pclk_freq_in_mhz = dst->pixel_rate_mhz;
845 	bool interlaced = dst->interlaced;
846 
847 	double ref_freq_to_pix_freq = refclk_freq_in_mhz / pclk_freq_in_mhz;
848 
849 	double min_dcfclk_mhz;
850 	double t_calc_us;
851 	double min_ttu_vblank;
852 
853 	double min_dst_y_ttu_vblank;
854 	unsigned int dlg_vblank_start;
855 	bool dual_plane;
856 	bool mode_422;
857 	unsigned int access_dir;
858 	unsigned int vp_height_l;
859 	unsigned int vp_width_l;
860 	unsigned int vp_height_c;
861 	unsigned int vp_width_c;
862 
863 	// Scaling
864 	unsigned int htaps_l;
865 	unsigned int htaps_c;
866 	double hratio_l;
867 	double hratio_c;
868 	double vratio_l;
869 	double vratio_c;
870 	bool scl_enable;
871 
872 	double line_time_in_us;
873 	//    double vinit_l;
874 	//    double vinit_c;
875 	//    double vinit_bot_l;
876 	//    double vinit_bot_c;
877 
878 	//    unsigned int swath_height_l;
879 	unsigned int swath_width_ub_l;
880 	//    unsigned int dpte_bytes_per_row_ub_l;
881 	unsigned int dpte_groups_per_row_ub_l;
882 	//    unsigned int meta_pte_bytes_per_frame_ub_l;
883 	//    unsigned int meta_bytes_per_row_ub_l;
884 
885 	//    unsigned int swath_height_c;
886 	unsigned int swath_width_ub_c;
887 	//   unsigned int dpte_bytes_per_row_ub_c;
888 	unsigned int dpte_groups_per_row_ub_c;
889 
890 	unsigned int meta_chunks_per_row_ub_l;
891 	unsigned int meta_chunks_per_row_ub_c;
892 	unsigned int vupdate_offset;
893 	unsigned int vupdate_width;
894 	unsigned int vready_offset;
895 
896 	unsigned int dppclk_delay_subtotal;
897 	unsigned int dispclk_delay_subtotal;
898 	unsigned int pixel_rate_delay_subtotal;
899 
900 	unsigned int vstartup_start;
901 	unsigned int dst_x_after_scaler;
902 	unsigned int dst_y_after_scaler;
903 	double line_wait;
904 	double dst_y_prefetch;
905 	double dst_y_per_vm_vblank;
906 	double dst_y_per_row_vblank;
907 	double dst_y_per_vm_flip;
908 	double dst_y_per_row_flip;
909 	double max_dst_y_per_vm_vblank;
910 	double max_dst_y_per_row_vblank;
911 	double lsw;
912 	double vratio_pre_l;
913 	double vratio_pre_c;
914 	unsigned int req_per_swath_ub_l;
915 	unsigned int req_per_swath_ub_c;
916 	unsigned int meta_row_height_l;
917 	unsigned int meta_row_height_c;
918 	unsigned int swath_width_pixels_ub_l;
919 	unsigned int swath_width_pixels_ub_c;
920 	unsigned int scaler_rec_in_width_l;
921 	unsigned int scaler_rec_in_width_c;
922 	unsigned int dpte_row_height_l;
923 	unsigned int dpte_row_height_c;
924 	double hscale_pixel_rate_l;
925 	double hscale_pixel_rate_c;
926 	double min_hratio_fact_l;
927 	double min_hratio_fact_c;
928 	double refcyc_per_line_delivery_pre_l;
929 	double refcyc_per_line_delivery_pre_c;
930 	double refcyc_per_line_delivery_l;
931 	double refcyc_per_line_delivery_c;
932 
933 	double refcyc_per_req_delivery_pre_l;
934 	double refcyc_per_req_delivery_pre_c;
935 	double refcyc_per_req_delivery_l;
936 	double refcyc_per_req_delivery_c;
937 
938 	unsigned int full_recout_width;
939 	double refcyc_per_req_delivery_pre_cur0;
940 	double refcyc_per_req_delivery_cur0;
941 	double refcyc_per_req_delivery_pre_cur1;
942 	double refcyc_per_req_delivery_cur1;
943 
944 	memset(disp_dlg_regs, 0, sizeof(*disp_dlg_regs));
945 	memset(disp_ttu_regs, 0, sizeof(*disp_ttu_regs));
946 
947 	dml_print("DML_DLG: %s:  cstate_en = %d\n", __func__, cstate_en);
948 	dml_print("DML_DLG: %s:  pstate_en = %d\n", __func__, pstate_en);
949 
950 	dml_print("DML_DLG: %s: dppclk_freq_in_mhz     = %3.2f\n", __func__, dppclk_freq_in_mhz);
951 	dml_print("DML_DLG: %s: dispclk_freq_in_mhz    = %3.2f\n", __func__, dispclk_freq_in_mhz);
952 	dml_print("DML_DLG: %s: refclk_freq_in_mhz     = %3.2f\n", __func__, refclk_freq_in_mhz);
953 	dml_print("DML_DLG: %s: pclk_freq_in_mhz       = %3.2f\n", __func__, pclk_freq_in_mhz);
954 	dml_print("DML_DLG: %s: interlaced             = %d\n", __func__, interlaced);
955 	ASSERT(ref_freq_to_pix_freq < 4.0);
956 
957 	disp_dlg_regs->ref_freq_to_pix_freq =
958 			(unsigned int) (ref_freq_to_pix_freq * dml_pow(2, 19));
959 	disp_dlg_regs->refcyc_per_htotal = (unsigned int) (ref_freq_to_pix_freq * (double) htotal
960 			* dml_pow(2, 8));
961 	disp_dlg_regs->dlg_vblank_end = interlaced ? (vblank_end / 2) : vblank_end; // 15 bits
962 	disp_dlg_regs->refcyc_h_blank_end = (unsigned int) ((double) hblank_end
963 			* (double) ref_freq_to_pix_freq);
964 	ASSERT(disp_dlg_regs->refcyc_h_blank_end < (unsigned int)dml_pow(2, 13));
965 
966 	min_dcfclk_mhz = dlg_sys_param.deepsleep_dcfclk_mhz;
967 	t_calc_us = get_tcalc(mode_lib, e2e_pipe_param, num_pipes);
968 	min_ttu_vblank = get_min_ttu_vblank(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
969 
970 	min_dst_y_ttu_vblank = min_ttu_vblank * pclk_freq_in_mhz / (double) htotal;
971 	dlg_vblank_start = interlaced ? (vblank_start / 2) : vblank_start;
972 
973 	disp_dlg_regs->min_dst_y_next_start = (unsigned int) (((double) dlg_vblank_start) * dml_pow(2, 2));
974 	ASSERT(disp_dlg_regs->min_dst_y_next_start < (unsigned int)dml_pow(2, 18));
975 
976 	dml_print(
977 			"DML_DLG: %s: min_dcfclk_mhz                         = %3.2f\n",
978 			__func__,
979 			min_dcfclk_mhz);
980 	dml_print(
981 			"DML_DLG: %s: min_ttu_vblank                         = %3.2f\n",
982 			__func__,
983 			min_ttu_vblank);
984 	dml_print(
985 			"DML_DLG: %s: min_dst_y_ttu_vblank                   = %3.2f\n",
986 			__func__,
987 			min_dst_y_ttu_vblank);
988 	dml_print(
989 			"DML_DLG: %s: t_calc_us                              = %3.2f\n",
990 			__func__,
991 			t_calc_us);
992 	dml_print(
993 			"DML_DLG: %s: disp_dlg_regs->min_dst_y_next_start    = 0x%0x\n",
994 			__func__,
995 			disp_dlg_regs->min_dst_y_next_start);
996 	dml_print(
997 			"DML_DLG: %s: ref_freq_to_pix_freq                   = %3.2f\n",
998 			__func__,
999 			ref_freq_to_pix_freq);
1000 
1001 	// -------------------------
1002 	// Section 1.15.2.2: Prefetch, Active and TTU
1003 	// -------------------------
1004 	// Prefetch Calc
1005 	// Source
1006 	//             dcc_en              = src.dcc;
1007 	dual_plane = is_dual_plane((enum source_format_class) (src->source_format));
1008 	mode_422 = false; // FIXME
1009 	access_dir = (src->source_scan == dm_vert); // vp access direction: horizontal or vertical accessed
1010 						    //      bytes_per_element_l = get_bytes_per_element(source_format_class(src.source_format), 0);
1011 						    //      bytes_per_element_c = get_bytes_per_element(source_format_class(src.source_format), 1);
1012 	vp_height_l = src->viewport_height;
1013 	vp_width_l = src->viewport_width;
1014 	vp_height_c = src->viewport_height_c;
1015 	vp_width_c = src->viewport_width_c;
1016 
1017 	// Scaling
1018 	htaps_l = taps->htaps;
1019 	htaps_c = taps->htaps_c;
1020 	hratio_l = scl->hscl_ratio;
1021 	hratio_c = scl->hscl_ratio_c;
1022 	vratio_l = scl->vscl_ratio;
1023 	vratio_c = scl->vscl_ratio_c;
1024 	scl_enable = scl->scl_enable;
1025 
1026 	line_time_in_us = (htotal / pclk_freq_in_mhz);
1027 	swath_width_ub_l = rq_dlg_param.rq_l.swath_width_ub;
1028 	dpte_groups_per_row_ub_l = rq_dlg_param.rq_l.dpte_groups_per_row_ub;
1029 	swath_width_ub_c = rq_dlg_param.rq_c.swath_width_ub;
1030 	dpte_groups_per_row_ub_c = rq_dlg_param.rq_c.dpte_groups_per_row_ub;
1031 
1032 	meta_chunks_per_row_ub_l = rq_dlg_param.rq_l.meta_chunks_per_row_ub;
1033 	meta_chunks_per_row_ub_c = rq_dlg_param.rq_c.meta_chunks_per_row_ub;
1034 	vupdate_offset = dst->vupdate_offset;
1035 	vupdate_width = dst->vupdate_width;
1036 	vready_offset = dst->vready_offset;
1037 
1038 	dppclk_delay_subtotal = mode_lib->ip.dppclk_delay_subtotal;
1039 	dispclk_delay_subtotal = mode_lib->ip.dispclk_delay_subtotal;
1040 
1041 	if (scl_enable)
1042 		dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_scl;
1043 	else
1044 		dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_scl_lb_only;
1045 
1046 	dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_cnvc_formatter
1047 			+ src->num_cursors * mode_lib->ip.dppclk_delay_cnvc_cursor;
1048 
1049 	if (dout->dsc_enable) {
1050 		double dsc_delay = get_dsc_delay(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1051 
1052 		dispclk_delay_subtotal += dsc_delay;
1053 	}
1054 
1055 	pixel_rate_delay_subtotal = dppclk_delay_subtotal * pclk_freq_in_mhz / dppclk_freq_in_mhz
1056 			+ dispclk_delay_subtotal * pclk_freq_in_mhz / dispclk_freq_in_mhz;
1057 
1058 	vstartup_start = dst->vstartup_start;
1059 	if (interlaced) {
1060 		if (vstartup_start / 2.0
1061 				- (double) (vready_offset + vupdate_width + vupdate_offset) / htotal
1062 				<= vblank_end / 2.0)
1063 			disp_dlg_regs->vready_after_vcount0 = 1;
1064 		else
1065 			disp_dlg_regs->vready_after_vcount0 = 0;
1066 	} else {
1067 		if (vstartup_start
1068 				- (double) (vready_offset + vupdate_width + vupdate_offset) / htotal
1069 				<= vblank_end)
1070 			disp_dlg_regs->vready_after_vcount0 = 1;
1071 		else
1072 			disp_dlg_regs->vready_after_vcount0 = 0;
1073 	}
1074 
1075 	// TODO: Where is this coming from?
1076 	if (interlaced)
1077 		vstartup_start = vstartup_start / 2;
1078 
1079 	// TODO: What if this min_vblank doesn't match the value in the dml_config_settings.cpp?
1080 	if (vstartup_start >= min_vblank) {
1081 		dml_print(
1082 				"WARNING: DML_DLG: %s: vblank_start=%d vblank_end=%d\n",
1083 				__func__,
1084 				vblank_start,
1085 				vblank_end);
1086 		dml_print(
1087 				"WARNING: DML_DLG: %s: vstartup_start=%d should be less than min_vblank=%d\n",
1088 				__func__,
1089 				vstartup_start,
1090 				min_vblank);
1091 		min_vblank = vstartup_start + 1;
1092 		dml_print(
1093 				"WARNING: DML_DLG: %s: vstartup_start=%d should be less than min_vblank=%d\n",
1094 				__func__,
1095 				vstartup_start,
1096 				min_vblank);
1097 	}
1098 
1099 	dst_x_after_scaler = get_dst_x_after_scaler(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1100 	dst_y_after_scaler = get_dst_y_after_scaler(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1101 
1102 	dml_print("DML_DLG: %s: htotal                                 = %d\n", __func__, htotal);
1103 	dml_print(
1104 			"DML_DLG: %s: pixel_rate_delay_subtotal              = %d\n",
1105 			__func__,
1106 			pixel_rate_delay_subtotal);
1107 	dml_print(
1108 			"DML_DLG: %s: dst_x_after_scaler                     = %d\n",
1109 			__func__,
1110 			dst_x_after_scaler);
1111 	dml_print(
1112 			"DML_DLG: %s: dst_y_after_scaler                     = %d\n",
1113 			__func__,
1114 			dst_y_after_scaler);
1115 
1116 	// Lwait
1117 	// TODO: Should this be urgent_latency_pixel_mixed_with_vm_data_us?
1118 	line_wait = mode_lib->soc.urgent_latency_pixel_data_only_us;
1119 	if (cstate_en)
1120 		line_wait = dml_max(mode_lib->soc.sr_enter_plus_exit_time_us, line_wait);
1121 	if (pstate_en)
1122 		line_wait = dml_max(
1123 				mode_lib->soc.dram_clock_change_latency_us
1124 						+ mode_lib->soc.urgent_latency_pixel_data_only_us, // TODO: Should this be urgent_latency_pixel_mixed_with_vm_data_us?
1125 				line_wait);
1126 	line_wait = line_wait / line_time_in_us;
1127 
1128 	dst_y_prefetch = get_dst_y_prefetch(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1129 	dml_print("DML_DLG: %s: dst_y_prefetch (after rnd) = %3.2f\n", __func__, dst_y_prefetch);
1130 
1131 	dst_y_per_vm_vblank = get_dst_y_per_vm_vblank(
1132 			mode_lib,
1133 			e2e_pipe_param,
1134 			num_pipes,
1135 			pipe_idx);
1136 	dst_y_per_row_vblank = get_dst_y_per_row_vblank(
1137 			mode_lib,
1138 			e2e_pipe_param,
1139 			num_pipes,
1140 			pipe_idx);
1141 	dst_y_per_vm_flip = get_dst_y_per_vm_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1142 	dst_y_per_row_flip = get_dst_y_per_row_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1143 
1144 	max_dst_y_per_vm_vblank = 32.0;
1145 	max_dst_y_per_row_vblank = 16.0;
1146 
1147 	// magic!
1148 	if (htotal <= 75) {
1149 		min_vblank = 300;
1150 		max_dst_y_per_vm_vblank = 100.0;
1151 		max_dst_y_per_row_vblank = 100.0;
1152 	}
1153 
1154 	dml_print("DML_DLG: %s: dst_y_per_vm_flip    = %3.2f\n", __func__, dst_y_per_vm_flip);
1155 	dml_print("DML_DLG: %s: dst_y_per_row_flip   = %3.2f\n", __func__, dst_y_per_row_flip);
1156 	dml_print("DML_DLG: %s: dst_y_per_vm_vblank  = %3.2f\n", __func__, dst_y_per_vm_vblank);
1157 	dml_print("DML_DLG: %s: dst_y_per_row_vblank = %3.2f\n", __func__, dst_y_per_row_vblank);
1158 
1159 	ASSERT(dst_y_per_vm_vblank < max_dst_y_per_vm_vblank);
1160 	ASSERT(dst_y_per_row_vblank < max_dst_y_per_row_vblank);
1161 
1162 	ASSERT(dst_y_prefetch > (dst_y_per_vm_vblank + dst_y_per_row_vblank));
1163 	lsw = dst_y_prefetch - (dst_y_per_vm_vblank + dst_y_per_row_vblank);
1164 
1165 	dml_print("DML_DLG: %s: lsw = %3.2f\n", __func__, lsw);
1166 
1167 	vratio_pre_l = get_vratio_prefetch_l(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1168 	vratio_pre_c = get_vratio_prefetch_c(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1169 
1170 	dml_print("DML_DLG: %s: vratio_pre_l=%3.2f\n", __func__, vratio_pre_l);
1171 	dml_print("DML_DLG: %s: vratio_pre_c=%3.2f\n", __func__, vratio_pre_c);
1172 
1173 	// Active
1174 	req_per_swath_ub_l = rq_dlg_param.rq_l.req_per_swath_ub;
1175 	req_per_swath_ub_c = rq_dlg_param.rq_c.req_per_swath_ub;
1176 	meta_row_height_l = rq_dlg_param.rq_l.meta_row_height;
1177 	meta_row_height_c = rq_dlg_param.rq_c.meta_row_height;
1178 	swath_width_pixels_ub_l = 0;
1179 	swath_width_pixels_ub_c = 0;
1180 	scaler_rec_in_width_l = 0;
1181 	scaler_rec_in_width_c = 0;
1182 	dpte_row_height_l = rq_dlg_param.rq_l.dpte_row_height;
1183 	dpte_row_height_c = rq_dlg_param.rq_c.dpte_row_height;
1184 
1185 	if (mode_422) {
1186 		swath_width_pixels_ub_l = swath_width_ub_l * 2;  // *2 for 2 pixel per element
1187 		swath_width_pixels_ub_c = swath_width_ub_c * 2;
1188 	} else {
1189 		swath_width_pixels_ub_l = swath_width_ub_l * 1;
1190 		swath_width_pixels_ub_c = swath_width_ub_c * 1;
1191 	}
1192 
1193 	hscale_pixel_rate_l = 0.;
1194 	hscale_pixel_rate_c = 0.;
1195 	min_hratio_fact_l = 1.0;
1196 	min_hratio_fact_c = 1.0;
1197 
1198 	if (hratio_l <= 1)
1199 		min_hratio_fact_l = 2.0;
1200 	else if (htaps_l <= 6) {
1201 		if ((hratio_l * 2.0) > 4.0)
1202 			min_hratio_fact_l = 4.0;
1203 		else
1204 			min_hratio_fact_l = hratio_l * 2.0;
1205 	} else {
1206 		if (hratio_l > 4.0)
1207 			min_hratio_fact_l = 4.0;
1208 		else
1209 			min_hratio_fact_l = hratio_l;
1210 	}
1211 
1212 	hscale_pixel_rate_l = min_hratio_fact_l * dppclk_freq_in_mhz;
1213 
1214 	if (hratio_c <= 1)
1215 		min_hratio_fact_c = 2.0;
1216 	else if (htaps_c <= 6) {
1217 		if ((hratio_c * 2.0) > 4.0)
1218 			min_hratio_fact_c = 4.0;
1219 		else
1220 			min_hratio_fact_c = hratio_c * 2.0;
1221 	} else {
1222 		if (hratio_c > 4.0)
1223 			min_hratio_fact_c = 4.0;
1224 		else
1225 			min_hratio_fact_c = hratio_c;
1226 	}
1227 
1228 	hscale_pixel_rate_c = min_hratio_fact_c * dppclk_freq_in_mhz;
1229 
1230 	refcyc_per_line_delivery_pre_l = 0.;
1231 	refcyc_per_line_delivery_pre_c = 0.;
1232 	refcyc_per_line_delivery_l = 0.;
1233 	refcyc_per_line_delivery_c = 0.;
1234 
1235 	refcyc_per_req_delivery_pre_l = 0.;
1236 	refcyc_per_req_delivery_pre_c = 0.;
1237 	refcyc_per_req_delivery_l = 0.;
1238 	refcyc_per_req_delivery_c = 0.;
1239 
1240 	full_recout_width = 0;
1241 	// In ODM
1242 	if (src->is_hsplit) {
1243 		// This "hack"  is only allowed (and valid) for MPC combine. In ODM
1244 		// combine, you MUST specify the full_recout_width...according to Oswin
1245 		if (dst->full_recout_width == 0 && !dst->odm_combine) {
1246 			dml_print(
1247 					"DML_DLG: %s: Warning: full_recout_width not set in hsplit mode\n",
1248 					__func__);
1249 			full_recout_width = dst->recout_width * 2; // assume half split for dcn1
1250 		} else
1251 			full_recout_width = dst->full_recout_width;
1252 	} else
1253 		full_recout_width = dst->recout_width;
1254 
1255 	// As of DCN2, mpc_combine and odm_combine are mutually exclusive
1256 	refcyc_per_line_delivery_pre_l = get_refcyc_per_delivery(
1257 			mode_lib,
1258 			refclk_freq_in_mhz,
1259 			pclk_freq_in_mhz,
1260 			dst->odm_combine,
1261 			full_recout_width,
1262 			dst->hactive,
1263 			vratio_pre_l,
1264 			hscale_pixel_rate_l,
1265 			swath_width_pixels_ub_l,
1266 			1); // per line
1267 
1268 	refcyc_per_line_delivery_l = get_refcyc_per_delivery(
1269 			mode_lib,
1270 			refclk_freq_in_mhz,
1271 			pclk_freq_in_mhz,
1272 			dst->odm_combine,
1273 			full_recout_width,
1274 			dst->hactive,
1275 			vratio_l,
1276 			hscale_pixel_rate_l,
1277 			swath_width_pixels_ub_l,
1278 			1); // per line
1279 
1280 	dml_print("DML_DLG: %s: full_recout_width              = %d\n", __func__, full_recout_width);
1281 	dml_print(
1282 			"DML_DLG: %s: hscale_pixel_rate_l            = %3.2f\n",
1283 			__func__,
1284 			hscale_pixel_rate_l);
1285 	dml_print(
1286 			"DML_DLG: %s: refcyc_per_line_delivery_pre_l = %3.2f\n",
1287 			__func__,
1288 			refcyc_per_line_delivery_pre_l);
1289 	dml_print(
1290 			"DML_DLG: %s: refcyc_per_line_delivery_l     = %3.2f\n",
1291 			__func__,
1292 			refcyc_per_line_delivery_l);
1293 
1294 	if (dual_plane) {
1295 		refcyc_per_line_delivery_pre_c = get_refcyc_per_delivery(
1296 				mode_lib,
1297 				refclk_freq_in_mhz,
1298 				pclk_freq_in_mhz,
1299 				dst->odm_combine,
1300 				full_recout_width,
1301 				dst->hactive,
1302 				vratio_pre_c,
1303 				hscale_pixel_rate_c,
1304 				swath_width_pixels_ub_c,
1305 				1); // per line
1306 
1307 		refcyc_per_line_delivery_c = get_refcyc_per_delivery(
1308 				mode_lib,
1309 				refclk_freq_in_mhz,
1310 				pclk_freq_in_mhz,
1311 				dst->odm_combine,
1312 				full_recout_width,
1313 				dst->hactive,
1314 				vratio_c,
1315 				hscale_pixel_rate_c,
1316 				swath_width_pixels_ub_c,
1317 				1);  // per line
1318 
1319 		dml_print(
1320 				"DML_DLG: %s: refcyc_per_line_delivery_pre_c = %3.2f\n",
1321 				__func__,
1322 				refcyc_per_line_delivery_pre_c);
1323 		dml_print(
1324 				"DML_DLG: %s: refcyc_per_line_delivery_c     = %3.2f\n",
1325 				__func__,
1326 				refcyc_per_line_delivery_c);
1327 	}
1328 
1329 	// TTU - Luma / Chroma
1330 	if (access_dir) {  // vertical access
1331 		scaler_rec_in_width_l = vp_height_l;
1332 		scaler_rec_in_width_c = vp_height_c;
1333 	} else {
1334 		scaler_rec_in_width_l = vp_width_l;
1335 		scaler_rec_in_width_c = vp_width_c;
1336 	}
1337 
1338 	refcyc_per_req_delivery_pre_l = get_refcyc_per_delivery(
1339 			mode_lib,
1340 			refclk_freq_in_mhz,
1341 			pclk_freq_in_mhz,
1342 			dst->odm_combine,
1343 			full_recout_width,
1344 			dst->hactive,
1345 			vratio_pre_l,
1346 			hscale_pixel_rate_l,
1347 			scaler_rec_in_width_l,
1348 			req_per_swath_ub_l);  // per req
1349 	refcyc_per_req_delivery_l = get_refcyc_per_delivery(
1350 			mode_lib,
1351 			refclk_freq_in_mhz,
1352 			pclk_freq_in_mhz,
1353 			dst->odm_combine,
1354 			full_recout_width,
1355 			dst->hactive,
1356 			vratio_l,
1357 			hscale_pixel_rate_l,
1358 			scaler_rec_in_width_l,
1359 			req_per_swath_ub_l);  // per req
1360 
1361 	dml_print(
1362 			"DML_DLG: %s: refcyc_per_req_delivery_pre_l = %3.2f\n",
1363 			__func__,
1364 			refcyc_per_req_delivery_pre_l);
1365 	dml_print(
1366 			"DML_DLG: %s: refcyc_per_req_delivery_l     = %3.2f\n",
1367 			__func__,
1368 			refcyc_per_req_delivery_l);
1369 
1370 	ASSERT(refcyc_per_req_delivery_pre_l < dml_pow(2, 13));
1371 	ASSERT(refcyc_per_req_delivery_l < dml_pow(2, 13));
1372 
1373 	if (dual_plane) {
1374 		refcyc_per_req_delivery_pre_c = get_refcyc_per_delivery(
1375 				mode_lib,
1376 				refclk_freq_in_mhz,
1377 				pclk_freq_in_mhz,
1378 				dst->odm_combine,
1379 				full_recout_width,
1380 				dst->hactive,
1381 				vratio_pre_c,
1382 				hscale_pixel_rate_c,
1383 				scaler_rec_in_width_c,
1384 				req_per_swath_ub_c);  // per req
1385 		refcyc_per_req_delivery_c = get_refcyc_per_delivery(
1386 				mode_lib,
1387 				refclk_freq_in_mhz,
1388 				pclk_freq_in_mhz,
1389 				dst->odm_combine,
1390 				full_recout_width,
1391 				dst->hactive,
1392 				vratio_c,
1393 				hscale_pixel_rate_c,
1394 				scaler_rec_in_width_c,
1395 				req_per_swath_ub_c);  // per req
1396 
1397 		dml_print(
1398 				"DML_DLG: %s: refcyc_per_req_delivery_pre_c = %3.2f\n",
1399 				__func__,
1400 				refcyc_per_req_delivery_pre_c);
1401 		dml_print(
1402 				"DML_DLG: %s: refcyc_per_req_delivery_c     = %3.2f\n",
1403 				__func__,
1404 				refcyc_per_req_delivery_c);
1405 
1406 		ASSERT(refcyc_per_req_delivery_pre_c < dml_pow(2, 13));
1407 		ASSERT(refcyc_per_req_delivery_c < dml_pow(2, 13));
1408 	}
1409 
1410 	// TTU - Cursor
1411 	refcyc_per_req_delivery_pre_cur0 = 0.0;
1412 	refcyc_per_req_delivery_cur0 = 0.0;
1413 	if (src->num_cursors > 0) {
1414 		calculate_ttu_cursor(
1415 				mode_lib,
1416 				&refcyc_per_req_delivery_pre_cur0,
1417 				&refcyc_per_req_delivery_cur0,
1418 				refclk_freq_in_mhz,
1419 				ref_freq_to_pix_freq,
1420 				hscale_pixel_rate_l,
1421 				scl->hscl_ratio,
1422 				vratio_pre_l,
1423 				vratio_l,
1424 				src->cur0_src_width,
1425 				(enum cursor_bpp) (src->cur0_bpp));
1426 	}
1427 
1428 	refcyc_per_req_delivery_pre_cur1 = 0.0;
1429 	refcyc_per_req_delivery_cur1 = 0.0;
1430 	if (src->num_cursors > 1) {
1431 		calculate_ttu_cursor(
1432 				mode_lib,
1433 				&refcyc_per_req_delivery_pre_cur1,
1434 				&refcyc_per_req_delivery_cur1,
1435 				refclk_freq_in_mhz,
1436 				ref_freq_to_pix_freq,
1437 				hscale_pixel_rate_l,
1438 				scl->hscl_ratio,
1439 				vratio_pre_l,
1440 				vratio_l,
1441 				src->cur1_src_width,
1442 				(enum cursor_bpp) (src->cur1_bpp));
1443 	}
1444 
1445 	// TTU - Misc
1446 	// all hard-coded
1447 
1448 	// Assignment to register structures
1449 	disp_dlg_regs->dst_y_after_scaler = dst_y_after_scaler; // in terms of line
1450 	disp_dlg_regs->refcyc_x_after_scaler = dst_x_after_scaler * ref_freq_to_pix_freq; // in terms of refclk
1451 	ASSERT(disp_dlg_regs->refcyc_x_after_scaler < (unsigned int)dml_pow(2, 13));
1452 	disp_dlg_regs->dst_y_prefetch = (unsigned int) (dst_y_prefetch * dml_pow(2, 2));
1453 	disp_dlg_regs->dst_y_per_vm_vblank = (unsigned int) (dst_y_per_vm_vblank * dml_pow(2, 2));
1454 	disp_dlg_regs->dst_y_per_row_vblank = (unsigned int) (dst_y_per_row_vblank * dml_pow(2, 2));
1455 	disp_dlg_regs->dst_y_per_vm_flip = (unsigned int) (dst_y_per_vm_flip * dml_pow(2, 2));
1456 	disp_dlg_regs->dst_y_per_row_flip = (unsigned int) (dst_y_per_row_flip * dml_pow(2, 2));
1457 
1458 	disp_dlg_regs->vratio_prefetch = (unsigned int) (vratio_pre_l * dml_pow(2, 19));
1459 	disp_dlg_regs->vratio_prefetch_c = (unsigned int) (vratio_pre_c * dml_pow(2, 19));
1460 
1461 	dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_vm_vblank  = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_vm_vblank);
1462 	dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_row_vblank = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_row_vblank);
1463 	dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_vm_flip    = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_vm_flip);
1464 	dml_print("DML_DLG: %s: disp_dlg_regs->dst_y_per_row_flip   = 0x%x\n", __func__, disp_dlg_regs->dst_y_per_row_flip);
1465 
1466 	disp_dlg_regs->refcyc_per_pte_group_vblank_l =
1467 			(unsigned int) (dst_y_per_row_vblank * (double) htotal
1468 					* ref_freq_to_pix_freq / (double) dpte_groups_per_row_ub_l);
1469 	if ((refclk_freq_in_mhz / ref_freq_to_pix_freq < 28) &&
1470 			disp_dlg_regs->refcyc_per_pte_group_vblank_l >= (unsigned int)dml_pow(2, 13))
1471 		disp_dlg_regs->refcyc_per_pte_group_vblank_l = (1 << 13) - 1;
1472 	else
1473 		ASSERT(disp_dlg_regs->refcyc_per_pte_group_vblank_l < (unsigned int)dml_pow(2, 13));
1474 
1475 	if (dual_plane) {
1476 		disp_dlg_regs->refcyc_per_pte_group_vblank_c = (unsigned int) (dst_y_per_row_vblank
1477 				* (double) htotal * ref_freq_to_pix_freq
1478 				/ (double) dpte_groups_per_row_ub_c);
1479 		if ((refclk_freq_in_mhz / ref_freq_to_pix_freq < 28) &&
1480 				disp_dlg_regs->refcyc_per_pte_group_vblank_c >= (unsigned int)dml_pow(2, 13))
1481 			disp_dlg_regs->refcyc_per_pte_group_vblank_c = (1 << 13) - 1;
1482 		else
1483 			ASSERT(disp_dlg_regs->refcyc_per_pte_group_vblank_c
1484 				< (unsigned int)dml_pow(2, 13));
1485 	}
1486 
1487 	if (src->dcc)
1488 		disp_dlg_regs->refcyc_per_meta_chunk_vblank_l =
1489 			(unsigned int) (dst_y_per_row_vblank * (double) htotal
1490 					* ref_freq_to_pix_freq / (double) meta_chunks_per_row_ub_l);
1491 	else
1492 		disp_dlg_regs->refcyc_per_meta_chunk_vblank_l = 0;
1493 	ASSERT(disp_dlg_regs->refcyc_per_meta_chunk_vblank_l < (unsigned int)dml_pow(2, 13));
1494 
1495 	disp_dlg_regs->refcyc_per_meta_chunk_vblank_c =
1496 			disp_dlg_regs->refcyc_per_meta_chunk_vblank_l; // dcc for 4:2:0 is not supported in dcn1.0.  assigned to be the same as _l for now
1497 
1498 	disp_dlg_regs->refcyc_per_pte_group_flip_l = (unsigned int) (dst_y_per_row_flip * htotal
1499 			* ref_freq_to_pix_freq) / dpte_groups_per_row_ub_l;
1500 	disp_dlg_regs->refcyc_per_meta_chunk_flip_l = (unsigned int) (dst_y_per_row_flip * htotal
1501 			* ref_freq_to_pix_freq) / meta_chunks_per_row_ub_l;
1502 
1503 	if (dual_plane) {
1504 		disp_dlg_regs->refcyc_per_pte_group_flip_c = (unsigned int) (dst_y_per_row_flip
1505 				* htotal * ref_freq_to_pix_freq) / dpte_groups_per_row_ub_c;
1506 		disp_dlg_regs->refcyc_per_meta_chunk_flip_c = (unsigned int) (dst_y_per_row_flip
1507 				* htotal * ref_freq_to_pix_freq) / meta_chunks_per_row_ub_c;
1508 	}
1509 
1510 	disp_dlg_regs->refcyc_per_vm_group_vblank   = get_refcyc_per_vm_group_vblank(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;
1511 	disp_dlg_regs->refcyc_per_vm_group_flip     = get_refcyc_per_vm_group_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz;
1512 	disp_dlg_regs->refcyc_per_vm_req_vblank     = get_refcyc_per_vm_req_vblank(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz * dml_pow(2, 10);
1513 	disp_dlg_regs->refcyc_per_vm_req_flip       = get_refcyc_per_vm_req_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx) * refclk_freq_in_mhz * dml_pow(2, 10);
1514 
1515 	// Clamp to max for now
1516 	if (disp_dlg_regs->refcyc_per_vm_group_vblank >= (unsigned int)dml_pow(2, 23))
1517 		disp_dlg_regs->refcyc_per_vm_group_vblank = dml_pow(2, 23) - 1;
1518 
1519 	if (disp_dlg_regs->refcyc_per_vm_group_flip >= (unsigned int)dml_pow(2, 23))
1520 		disp_dlg_regs->refcyc_per_vm_group_flip = dml_pow(2, 23) - 1;
1521 
1522 	if (disp_dlg_regs->refcyc_per_vm_req_vblank >= (unsigned int)dml_pow(2, 23))
1523 		disp_dlg_regs->refcyc_per_vm_req_vblank = dml_pow(2, 23) - 1;
1524 
1525 	if (disp_dlg_regs->refcyc_per_vm_req_flip >= (unsigned int)dml_pow(2, 23))
1526 		disp_dlg_regs->refcyc_per_vm_req_flip = dml_pow(2, 23) - 1;
1527 	disp_dlg_regs->dst_y_per_pte_row_nom_l = (unsigned int) ((double) dpte_row_height_l
1528 			/ (double) vratio_l * dml_pow(2, 2));
1529 	ASSERT(disp_dlg_regs->dst_y_per_pte_row_nom_l < (unsigned int)dml_pow(2, 17));
1530 
1531 	if (dual_plane) {
1532 		disp_dlg_regs->dst_y_per_pte_row_nom_c = (unsigned int) ((double) dpte_row_height_c
1533 				/ (double) vratio_c * dml_pow(2, 2));
1534 		if (disp_dlg_regs->dst_y_per_pte_row_nom_c >= (unsigned int) dml_pow(2, 17)) {
1535 			dml_print(
1536 					"DML_DLG: %s: Warning dst_y_per_pte_row_nom_c %u larger than supported by register format U15.2 %u\n",
1537 					__func__,
1538 					disp_dlg_regs->dst_y_per_pte_row_nom_c,
1539 					(unsigned int)dml_pow(2, 17) - 1);
1540 		}
1541 	}
1542 
1543 	disp_dlg_regs->dst_y_per_meta_row_nom_l = (unsigned int) ((double) meta_row_height_l
1544 			/ (double) vratio_l * dml_pow(2, 2));
1545 	ASSERT(disp_dlg_regs->dst_y_per_meta_row_nom_l < (unsigned int)dml_pow(2, 17));
1546 
1547 	disp_dlg_regs->dst_y_per_meta_row_nom_c = disp_dlg_regs->dst_y_per_meta_row_nom_l; // TODO: dcc for 4:2:0 is not supported in dcn1.0.  assigned to be the same as _l for now
1548 
1549 	dml_print(
1550 			"DML: Trow: %fus\n",
1551 			line_time_in_us * (double)dpte_row_height_l / (double)vratio_l);
1552 
1553 	disp_dlg_regs->refcyc_per_pte_group_nom_l = (unsigned int) ((double) dpte_row_height_l
1554 			/ (double) vratio_l * (double) htotal * ref_freq_to_pix_freq
1555 			/ (double) dpte_groups_per_row_ub_l);
1556 	if (disp_dlg_regs->refcyc_per_pte_group_nom_l >= (unsigned int) dml_pow(2, 23))
1557 		disp_dlg_regs->refcyc_per_pte_group_nom_l = dml_pow(2, 23) - 1;
1558 	disp_dlg_regs->refcyc_per_meta_chunk_nom_l = (unsigned int) ((double) meta_row_height_l
1559 			/ (double) vratio_l * (double) htotal * ref_freq_to_pix_freq
1560 			/ (double) meta_chunks_per_row_ub_l);
1561 	if (disp_dlg_regs->refcyc_per_meta_chunk_nom_l >= (unsigned int) dml_pow(2, 23))
1562 		disp_dlg_regs->refcyc_per_meta_chunk_nom_l = dml_pow(2, 23) - 1;
1563 
1564 	if (dual_plane) {
1565 		disp_dlg_regs->refcyc_per_pte_group_nom_c =
1566 				(unsigned int) ((double) dpte_row_height_c / (double) vratio_c
1567 						* (double) htotal * ref_freq_to_pix_freq
1568 						/ (double) dpte_groups_per_row_ub_c);
1569 		if (disp_dlg_regs->refcyc_per_pte_group_nom_c >= (unsigned int) dml_pow(2, 23))
1570 			disp_dlg_regs->refcyc_per_pte_group_nom_c = dml_pow(2, 23) - 1;
1571 
1572 		// TODO: Is this the right calculation? Does htotal need to be halved?
1573 		disp_dlg_regs->refcyc_per_meta_chunk_nom_c =
1574 				(unsigned int) ((double) meta_row_height_c / (double) vratio_c
1575 						* (double) htotal * ref_freq_to_pix_freq
1576 						/ (double) meta_chunks_per_row_ub_c);
1577 		if (disp_dlg_regs->refcyc_per_meta_chunk_nom_c >= (unsigned int) dml_pow(2, 23))
1578 			disp_dlg_regs->refcyc_per_meta_chunk_nom_c = dml_pow(2, 23) - 1;
1579 	}
1580 
1581 	disp_dlg_regs->refcyc_per_line_delivery_pre_l = (unsigned int) dml_floor(
1582 			refcyc_per_line_delivery_pre_l, 1);
1583 	disp_dlg_regs->refcyc_per_line_delivery_l = (unsigned int) dml_floor(
1584 			refcyc_per_line_delivery_l, 1);
1585 	ASSERT(disp_dlg_regs->refcyc_per_line_delivery_pre_l < (unsigned int)dml_pow(2, 13));
1586 	ASSERT(disp_dlg_regs->refcyc_per_line_delivery_l < (unsigned int)dml_pow(2, 13));
1587 
1588 	disp_dlg_regs->refcyc_per_line_delivery_pre_c = (unsigned int) dml_floor(
1589 			refcyc_per_line_delivery_pre_c, 1);
1590 	disp_dlg_regs->refcyc_per_line_delivery_c = (unsigned int) dml_floor(
1591 			refcyc_per_line_delivery_c, 1);
1592 	ASSERT(disp_dlg_regs->refcyc_per_line_delivery_pre_c < (unsigned int)dml_pow(2, 13));
1593 	ASSERT(disp_dlg_regs->refcyc_per_line_delivery_c < (unsigned int)dml_pow(2, 13));
1594 
1595 	disp_dlg_regs->chunk_hdl_adjust_cur0 = 3;
1596 	disp_dlg_regs->dst_y_offset_cur0 = 0;
1597 	disp_dlg_regs->chunk_hdl_adjust_cur1 = 3;
1598 	disp_dlg_regs->dst_y_offset_cur1 = 0;
1599 
1600 	disp_dlg_regs->dst_y_delta_drq_limit = 0x7fff; // off
1601 
1602 	disp_ttu_regs->refcyc_per_req_delivery_pre_l = (unsigned int) (refcyc_per_req_delivery_pre_l
1603 			* dml_pow(2, 10));
1604 	disp_ttu_regs->refcyc_per_req_delivery_l = (unsigned int) (refcyc_per_req_delivery_l
1605 			* dml_pow(2, 10));
1606 	disp_ttu_regs->refcyc_per_req_delivery_pre_c = (unsigned int) (refcyc_per_req_delivery_pre_c
1607 			* dml_pow(2, 10));
1608 	disp_ttu_regs->refcyc_per_req_delivery_c = (unsigned int) (refcyc_per_req_delivery_c
1609 			* dml_pow(2, 10));
1610 	disp_ttu_regs->refcyc_per_req_delivery_pre_cur0 =
1611 			(unsigned int) (refcyc_per_req_delivery_pre_cur0 * dml_pow(2, 10));
1612 	disp_ttu_regs->refcyc_per_req_delivery_cur0 = (unsigned int) (refcyc_per_req_delivery_cur0
1613 			* dml_pow(2, 10));
1614 	disp_ttu_regs->refcyc_per_req_delivery_pre_cur1 =
1615 			(unsigned int) (refcyc_per_req_delivery_pre_cur1 * dml_pow(2, 10));
1616 	disp_ttu_regs->refcyc_per_req_delivery_cur1 = (unsigned int) (refcyc_per_req_delivery_cur1
1617 			* dml_pow(2, 10));
1618 	disp_ttu_regs->qos_level_low_wm = 0;
1619 	ASSERT(disp_ttu_regs->qos_level_low_wm < dml_pow(2, 14));
1620 	disp_ttu_regs->qos_level_high_wm = (unsigned int) (4.0 * (double) htotal
1621 			* ref_freq_to_pix_freq);
1622 	ASSERT(disp_ttu_regs->qos_level_high_wm < dml_pow(2, 14));
1623 
1624 	disp_ttu_regs->qos_level_flip = 14;
1625 	disp_ttu_regs->qos_level_fixed_l = 8;
1626 	disp_ttu_regs->qos_level_fixed_c = 8;
1627 	disp_ttu_regs->qos_level_fixed_cur0 = 8;
1628 	disp_ttu_regs->qos_ramp_disable_l = 0;
1629 	disp_ttu_regs->qos_ramp_disable_c = 0;
1630 	disp_ttu_regs->qos_ramp_disable_cur0 = 0;
1631 
1632 	disp_ttu_regs->min_ttu_vblank = min_ttu_vblank * refclk_freq_in_mhz;
1633 	ASSERT(disp_ttu_regs->min_ttu_vblank < dml_pow(2, 24));
1634 
1635 	print__ttu_regs_st(mode_lib, *disp_ttu_regs);
1636 	print__dlg_regs_st(mode_lib, *disp_dlg_regs);
1637 }
1638 
1639 void dml21_rq_dlg_get_dlg_reg(
1640 		struct display_mode_lib *mode_lib,
1641 		display_dlg_regs_st *dlg_regs,
1642 		display_ttu_regs_st *ttu_regs,
1643 		display_e2e_pipe_params_st *e2e_pipe_param,
1644 		const unsigned int num_pipes,
1645 		const unsigned int pipe_idx,
1646 		const bool cstate_en,
1647 		const bool pstate_en,
1648 		const bool vm_en,
1649 		const bool ignore_viewport_pos,
1650 		const bool immediate_flip_support)
1651 {
1652 	display_rq_params_st rq_param = {0};
1653 	display_dlg_sys_params_st dlg_sys_param = {0};
1654 
1655 	// Get watermark and Tex.
1656 	dlg_sys_param.t_urg_wm_us = get_wm_urgent(mode_lib, e2e_pipe_param, num_pipes);
1657 	dlg_sys_param.deepsleep_dcfclk_mhz = get_clk_dcf_deepsleep(
1658 			mode_lib,
1659 			e2e_pipe_param,
1660 			num_pipes);
1661 	dlg_sys_param.t_extra_us = get_urgent_extra_latency(mode_lib, e2e_pipe_param, num_pipes);
1662 	dlg_sys_param.mem_trip_us = get_wm_memory_trip(mode_lib, e2e_pipe_param, num_pipes);
1663 	dlg_sys_param.t_mclk_wm_us = get_wm_dram_clock_change(mode_lib, e2e_pipe_param, num_pipes);
1664 	dlg_sys_param.t_sr_wm_us = get_wm_stutter_enter_exit(mode_lib, e2e_pipe_param, num_pipes);
1665 	dlg_sys_param.total_flip_bw = get_total_immediate_flip_bw(
1666 			mode_lib,
1667 			e2e_pipe_param,
1668 			num_pipes);
1669 	dlg_sys_param.total_flip_bytes = get_total_immediate_flip_bytes(
1670 			mode_lib,
1671 			e2e_pipe_param,
1672 			num_pipes);
1673 	dlg_sys_param.t_srx_delay_us = mode_lib->ip.dcfclk_cstate_latency
1674 			/ dlg_sys_param.deepsleep_dcfclk_mhz; // TODO: Deprecated
1675 
1676 	print__dlg_sys_params_st(mode_lib, dlg_sys_param);
1677 
1678 	// system parameter calculation done
1679 
1680 	dml_print("DML_DLG: Calculation for pipe[%d] start\n\n", pipe_idx);
1681 	dml_rq_dlg_get_rq_params(mode_lib, &rq_param, e2e_pipe_param[pipe_idx].pipe);
1682 	dml_rq_dlg_get_dlg_params(
1683 			mode_lib,
1684 			e2e_pipe_param,
1685 			num_pipes,
1686 			pipe_idx,
1687 			dlg_regs,
1688 			ttu_regs,
1689 			rq_param.dlg,
1690 			dlg_sys_param,
1691 			cstate_en,
1692 			pstate_en);
1693 	dml_print("DML_DLG: Calculation for pipe[%d] end\n", pipe_idx);
1694 }
1695 
1696 void dml_rq_dlg_get_arb_params(struct display_mode_lib *mode_lib, display_arb_params_st *arb_param)
1697 {
1698 	memset(arb_param, 0, sizeof(*arb_param));
1699 	arb_param->max_req_outstanding = 256;
1700 	arb_param->min_req_outstanding = 68;
1701 	arb_param->sat_level_us = 60;
1702 }
1703 
1704 static void calculate_ttu_cursor(
1705 		struct display_mode_lib *mode_lib,
1706 		double *refcyc_per_req_delivery_pre_cur,
1707 		double *refcyc_per_req_delivery_cur,
1708 		double refclk_freq_in_mhz,
1709 		double ref_freq_to_pix_freq,
1710 		double hscale_pixel_rate_l,
1711 		double hscl_ratio,
1712 		double vratio_pre_l,
1713 		double vratio_l,
1714 		unsigned int cur_width,
1715 		enum cursor_bpp cur_bpp)
1716 {
1717 	unsigned int cur_src_width = cur_width;
1718 	unsigned int cur_req_size = 0;
1719 	unsigned int cur_req_width = 0;
1720 	double cur_width_ub = 0.0;
1721 	double cur_req_per_width = 0.0;
1722 	double hactive_cur = 0.0;
1723 
1724 	ASSERT(cur_src_width <= 256);
1725 
1726 	*refcyc_per_req_delivery_pre_cur = 0.0;
1727 	*refcyc_per_req_delivery_cur = 0.0;
1728 	if (cur_src_width > 0) {
1729 		unsigned int cur_bit_per_pixel = 0;
1730 
1731 		if (cur_bpp == dm_cur_2bit) {
1732 			cur_req_size = 64; // byte
1733 			cur_bit_per_pixel = 2;
1734 		} else { // 32bit
1735 			cur_bit_per_pixel = 32;
1736 			if (cur_src_width >= 1 && cur_src_width <= 16)
1737 				cur_req_size = 64;
1738 			else if (cur_src_width >= 17 && cur_src_width <= 31)
1739 				cur_req_size = 128;
1740 			else
1741 				cur_req_size = 256;
1742 		}
1743 
1744 		cur_req_width = (double) cur_req_size / ((double) cur_bit_per_pixel / 8.0);
1745 		cur_width_ub = dml_ceil((double) cur_src_width / (double) cur_req_width, 1)
1746 				* (double) cur_req_width;
1747 		cur_req_per_width = cur_width_ub / (double) cur_req_width;
1748 		hactive_cur = (double) cur_src_width / hscl_ratio; // FIXME: oswin to think about what to do for cursor
1749 
1750 		if (vratio_pre_l <= 1.0) {
1751 			*refcyc_per_req_delivery_pre_cur = hactive_cur * ref_freq_to_pix_freq
1752 					/ (double) cur_req_per_width;
1753 		} else {
1754 			*refcyc_per_req_delivery_pre_cur = (double) refclk_freq_in_mhz
1755 					* (double) cur_src_width / hscale_pixel_rate_l
1756 					/ (double) cur_req_per_width;
1757 		}
1758 
1759 		ASSERT(*refcyc_per_req_delivery_pre_cur < dml_pow(2, 13));
1760 
1761 		if (vratio_l <= 1.0) {
1762 			*refcyc_per_req_delivery_cur = hactive_cur * ref_freq_to_pix_freq
1763 					/ (double) cur_req_per_width;
1764 		} else {
1765 			*refcyc_per_req_delivery_cur = (double) refclk_freq_in_mhz
1766 					* (double) cur_src_width / hscale_pixel_rate_l
1767 					/ (double) cur_req_per_width;
1768 		}
1769 
1770 		dml_print(
1771 				"DML_DLG: %s: cur_req_width                     = %d\n",
1772 				__func__,
1773 				cur_req_width);
1774 		dml_print(
1775 				"DML_DLG: %s: cur_width_ub                      = %3.2f\n",
1776 				__func__,
1777 				cur_width_ub);
1778 		dml_print(
1779 				"DML_DLG: %s: cur_req_per_width                 = %3.2f\n",
1780 				__func__,
1781 				cur_req_per_width);
1782 		dml_print(
1783 				"DML_DLG: %s: hactive_cur                       = %3.2f\n",
1784 				__func__,
1785 				hactive_cur);
1786 		dml_print(
1787 				"DML_DLG: %s: refcyc_per_req_delivery_pre_cur   = %3.2f\n",
1788 				__func__,
1789 				*refcyc_per_req_delivery_pre_cur);
1790 		dml_print(
1791 				"DML_DLG: %s: refcyc_per_req_delivery_cur       = %3.2f\n",
1792 				__func__,
1793 				*refcyc_per_req_delivery_cur);
1794 
1795 		ASSERT(*refcyc_per_req_delivery_cur < dml_pow(2, 13));
1796 	}
1797 }
1798 
1799