1 /*
2  * Copyright 2018 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 "../display_mode_lib.h"
27 #include "../display_mode_vba.h"
28 #include "display_rq_dlg_calc_20.h"
29 
30 // Function: dml20_rq_dlg_get_rq_params
31 //  Calculate requestor related parameters that register definition agnostic
32 //  (i.e. this layer does try to separate real values from register definition)
33 // Input:
34 //  pipe_src_param - pipe source configuration (e.g. vp, pitch, etc.)
35 // Output:
36 //  rq_param - values that can be used to setup RQ (e.g. swath_height, plane1_addr, etc.)
37 //
38 static void dml20_rq_dlg_get_rq_params(
39 		struct display_mode_lib *mode_lib,
40 		display_rq_params_st * rq_param,
41 		const display_pipe_source_params_st pipe_src_param);
42 
43 // Function: dml20_rq_dlg_get_dlg_params
44 //  Calculate deadline related parameters
45 //
46 static void dml20_rq_dlg_get_dlg_params(struct display_mode_lib *mode_lib,
47 		const display_e2e_pipe_params_st *e2e_pipe_param,
48 		const unsigned int num_pipes,
49 		const unsigned int pipe_idx,
50 		display_dlg_regs_st *disp_dlg_regs,
51 		display_ttu_regs_st *disp_ttu_regs,
52 		const display_rq_dlg_params_st rq_dlg_param,
53 		const display_dlg_sys_params_st dlg_sys_param,
54 		const bool cstate_en,
55 		const bool pstate_en);
56 /*
57  * NOTE:
58  *   This file is gcc-parseable HW gospel, coming straight from HW engineers.
59  *
60  * It doesn't adhere to Linux kernel style and sometimes will do things in odd
61  * ways. Unless there is something clearly wrong with it the code should
62  * remain as-is as it provides us with a guarantee from HW that it is correct.
63  */
64 
65 static void calculate_ttu_cursor(struct display_mode_lib *mode_lib,
66 		double *refcyc_per_req_delivery_pre_cur,
67 		double *refcyc_per_req_delivery_cur,
68 		double refclk_freq_in_mhz,
69 		double ref_freq_to_pix_freq,
70 		double hscale_pixel_rate_l,
71 		double hscl_ratio,
72 		double vratio_pre_l,
73 		double vratio_l,
74 		unsigned int cur_width,
75 		enum cursor_bpp cur_bpp);
76 
77 #include "../dml_inline_defs.h"
78 
79 static unsigned int get_bytes_per_element(enum source_format_class source_format, bool is_chroma)
80 {
81 	unsigned int ret_val = 0;
82 
83 	if (source_format == dm_444_16) {
84 		if (!is_chroma)
85 			ret_val = 2;
86 	} else if (source_format == dm_444_32) {
87 		if (!is_chroma)
88 			ret_val = 4;
89 	} else if (source_format == dm_444_64) {
90 		if (!is_chroma)
91 			ret_val = 8;
92 	} else if (source_format == dm_420_8) {
93 		if (is_chroma)
94 			ret_val = 2;
95 		else
96 			ret_val = 1;
97 	} else if (source_format == dm_420_10) {
98 		if (is_chroma)
99 			ret_val = 4;
100 		else
101 			ret_val = 2;
102 	} else if (source_format == dm_444_8) {
103 		ret_val = 1;
104 	}
105 	return ret_val;
106 }
107 
108 static bool is_dual_plane(enum source_format_class source_format)
109 {
110 	bool ret_val = false;
111 
112 	if ((source_format == dm_420_8) || (source_format == dm_420_10))
113 		ret_val = true;
114 
115 	return ret_val;
116 }
117 
118 static double get_refcyc_per_delivery(struct display_mode_lib *mode_lib,
119 		double refclk_freq_in_mhz,
120 		double pclk_freq_in_mhz,
121 		bool odm_combine,
122 		unsigned int recout_width,
123 		unsigned int hactive,
124 		double vratio,
125 		double hscale_pixel_rate,
126 		unsigned int delivery_width,
127 		unsigned int req_per_swath_ub)
128 {
129 	double refcyc_per_delivery = 0.0;
130 
131 	if (vratio <= 1.0) {
132 		if (odm_combine)
133 			refcyc_per_delivery = (double) refclk_freq_in_mhz
134 					* dml_min((double) recout_width, (double) hactive / 2.0)
135 					/ pclk_freq_in_mhz / (double) req_per_swath_ub;
136 		else
137 			refcyc_per_delivery = (double) refclk_freq_in_mhz * (double) recout_width
138 					/ pclk_freq_in_mhz / (double) req_per_swath_ub;
139 	} else {
140 		refcyc_per_delivery = (double) refclk_freq_in_mhz * (double) delivery_width
141 				/ (double) hscale_pixel_rate / (double) req_per_swath_ub;
142 	}
143 
144 	dml_print("DML_DLG: %s: refclk_freq_in_mhz = %3.2f\n", __func__, refclk_freq_in_mhz);
145 	dml_print("DML_DLG: %s: pclk_freq_in_mhz   = %3.2f\n", __func__, pclk_freq_in_mhz);
146 	dml_print("DML_DLG: %s: recout_width       = %d\n", __func__, recout_width);
147 	dml_print("DML_DLG: %s: vratio             = %3.2f\n", __func__, vratio);
148 	dml_print("DML_DLG: %s: req_per_swath_ub   = %d\n", __func__, req_per_swath_ub);
149 	dml_print("DML_DLG: %s: refcyc_per_delivery= %3.2f\n", __func__, refcyc_per_delivery);
150 
151 	return refcyc_per_delivery;
152 
153 }
154 
155 static unsigned int get_blk_size_bytes(const enum source_macro_tile_size tile_size)
156 {
157 	if (tile_size == dm_256k_tile)
158 		return (256 * 1024);
159 	else if (tile_size == dm_64k_tile)
160 		return (64 * 1024);
161 	else
162 		return (4 * 1024);
163 }
164 
165 static void extract_rq_sizing_regs(struct display_mode_lib *mode_lib,
166 		display_data_rq_regs_st *rq_regs,
167 		const display_data_rq_sizing_params_st rq_sizing)
168 {
169 	dml_print("DML_DLG: %s: rq_sizing param\n", __func__);
170 	print__data_rq_sizing_params_st(mode_lib, rq_sizing);
171 
172 	rq_regs->chunk_size = dml_log2(rq_sizing.chunk_bytes) - 10;
173 
174 	if (rq_sizing.min_chunk_bytes == 0)
175 		rq_regs->min_chunk_size = 0;
176 	else
177 		rq_regs->min_chunk_size = dml_log2(rq_sizing.min_chunk_bytes) - 8 + 1;
178 
179 	rq_regs->meta_chunk_size = dml_log2(rq_sizing.meta_chunk_bytes) - 10;
180 	if (rq_sizing.min_meta_chunk_bytes == 0)
181 		rq_regs->min_meta_chunk_size = 0;
182 	else
183 		rq_regs->min_meta_chunk_size = dml_log2(rq_sizing.min_meta_chunk_bytes) - 6 + 1;
184 
185 	rq_regs->dpte_group_size = dml_log2(rq_sizing.dpte_group_bytes) - 6;
186 	rq_regs->mpte_group_size = dml_log2(rq_sizing.mpte_group_bytes) - 6;
187 }
188 
189 static void extract_rq_regs(struct display_mode_lib *mode_lib,
190 		display_rq_regs_st *rq_regs,
191 		const display_rq_params_st rq_param)
192 {
193 	unsigned int detile_buf_size_in_bytes = mode_lib->ip.det_buffer_size_kbytes * 1024;
194 	unsigned int detile_buf_plane1_addr = 0;
195 
196 	extract_rq_sizing_regs(mode_lib, &(rq_regs->rq_regs_l), rq_param.sizing.rq_l);
197 
198 	rq_regs->rq_regs_l.pte_row_height_linear = dml_floor(dml_log2(rq_param.dlg.rq_l.dpte_row_height),
199 			1) - 3;
200 
201 	if (rq_param.yuv420) {
202 		extract_rq_sizing_regs(mode_lib, &(rq_regs->rq_regs_c), rq_param.sizing.rq_c);
203 		rq_regs->rq_regs_c.pte_row_height_linear = dml_floor(dml_log2(rq_param.dlg.rq_c.dpte_row_height),
204 				1) - 3;
205 	}
206 
207 	rq_regs->rq_regs_l.swath_height = dml_log2(rq_param.dlg.rq_l.swath_height);
208 	rq_regs->rq_regs_c.swath_height = dml_log2(rq_param.dlg.rq_c.swath_height);
209 
210 	// TODO: take the max between luma, chroma chunk size?
211 	// okay for now, as we are setting chunk_bytes to 8kb anyways
212 	if (rq_param.sizing.rq_l.chunk_bytes >= 32 * 1024) { //32kb
213 		rq_regs->drq_expansion_mode = 0;
214 	} else {
215 		rq_regs->drq_expansion_mode = 2;
216 	}
217 	rq_regs->prq_expansion_mode = 1;
218 	rq_regs->mrq_expansion_mode = 1;
219 	rq_regs->crq_expansion_mode = 1;
220 
221 	if (rq_param.yuv420) {
222 		if ((double) rq_param.misc.rq_l.stored_swath_bytes
223 				/ (double) rq_param.misc.rq_c.stored_swath_bytes <= 1.5) {
224 			detile_buf_plane1_addr = (detile_buf_size_in_bytes / 2.0 / 64.0); // half to chroma
225 		} else {
226 			detile_buf_plane1_addr = dml_round_to_multiple((unsigned int) ((2.0 * detile_buf_size_in_bytes) / 3.0),
227 					256,
228 					0) / 64.0; // 2/3 to chroma
229 		}
230 	}
231 	rq_regs->plane1_base_address = detile_buf_plane1_addr;
232 }
233 
234 static void handle_det_buf_split(struct display_mode_lib *mode_lib,
235 		display_rq_params_st *rq_param,
236 		const display_pipe_source_params_st pipe_src_param)
237 {
238 	unsigned int total_swath_bytes = 0;
239 	unsigned int swath_bytes_l = 0;
240 	unsigned int swath_bytes_c = 0;
241 	unsigned int full_swath_bytes_packed_l = 0;
242 	unsigned int full_swath_bytes_packed_c = 0;
243 	bool req128_l = false;
244 	bool req128_c = false;
245 	bool surf_linear = (pipe_src_param.sw_mode == dm_sw_linear);
246 	bool surf_vert = (pipe_src_param.source_scan == dm_vert);
247 	unsigned int log2_swath_height_l = 0;
248 	unsigned int log2_swath_height_c = 0;
249 	unsigned int detile_buf_size_in_bytes = mode_lib->ip.det_buffer_size_kbytes * 1024;
250 
251 	full_swath_bytes_packed_l = rq_param->misc.rq_l.full_swath_bytes;
252 	full_swath_bytes_packed_c = rq_param->misc.rq_c.full_swath_bytes;
253 
254 	if (rq_param->yuv420_10bpc) {
255 		full_swath_bytes_packed_l = dml_round_to_multiple(rq_param->misc.rq_l.full_swath_bytes * 2 / 3,
256 				256,
257 				1) + 256;
258 		full_swath_bytes_packed_c = dml_round_to_multiple(rq_param->misc.rq_c.full_swath_bytes * 2 / 3,
259 				256,
260 				1) + 256;
261 	}
262 
263 	if (rq_param->yuv420) {
264 		total_swath_bytes = 2 * full_swath_bytes_packed_l + 2 * full_swath_bytes_packed_c;
265 
266 		if (total_swath_bytes <= detile_buf_size_in_bytes) { //full 256b request
267 			req128_l = false;
268 			req128_c = false;
269 			swath_bytes_l = full_swath_bytes_packed_l;
270 			swath_bytes_c = full_swath_bytes_packed_c;
271 		} else { //128b request (for luma only for yuv420 8bpc)
272 			req128_l = true;
273 			req128_c = false;
274 			swath_bytes_l = full_swath_bytes_packed_l / 2;
275 			swath_bytes_c = full_swath_bytes_packed_c;
276 		}
277 		// Note: assumption, the config that pass in will fit into
278 		//       the detiled buffer.
279 	} else {
280 		total_swath_bytes = 2 * full_swath_bytes_packed_l;
281 
282 		if (total_swath_bytes <= detile_buf_size_in_bytes)
283 			req128_l = false;
284 		else
285 			req128_l = true;
286 
287 		swath_bytes_l = total_swath_bytes;
288 		swath_bytes_c = 0;
289 	}
290 	rq_param->misc.rq_l.stored_swath_bytes = swath_bytes_l;
291 	rq_param->misc.rq_c.stored_swath_bytes = swath_bytes_c;
292 
293 	if (surf_linear) {
294 		log2_swath_height_l = 0;
295 		log2_swath_height_c = 0;
296 	} else if (!surf_vert) {
297 		log2_swath_height_l = dml_log2(rq_param->misc.rq_l.blk256_height) - req128_l;
298 		log2_swath_height_c = dml_log2(rq_param->misc.rq_c.blk256_height) - req128_c;
299 	} else {
300 		log2_swath_height_l = dml_log2(rq_param->misc.rq_l.blk256_width) - req128_l;
301 		log2_swath_height_c = dml_log2(rq_param->misc.rq_c.blk256_width) - req128_c;
302 	}
303 	rq_param->dlg.rq_l.swath_height = 1 << log2_swath_height_l;
304 	rq_param->dlg.rq_c.swath_height = 1 << log2_swath_height_c;
305 
306 	dml_print("DML_DLG: %s: req128_l = %0d\n", __func__, req128_l);
307 	dml_print("DML_DLG: %s: req128_c = %0d\n", __func__, req128_c);
308 	dml_print("DML_DLG: %s: full_swath_bytes_packed_l = %0d\n",
309 			__func__,
310 			full_swath_bytes_packed_l);
311 	dml_print("DML_DLG: %s: full_swath_bytes_packed_c = %0d\n",
312 			__func__,
313 			full_swath_bytes_packed_c);
314 }
315 
316 static void get_meta_and_pte_attr(struct display_mode_lib *mode_lib,
317 		display_data_rq_dlg_params_st *rq_dlg_param,
318 		display_data_rq_misc_params_st *rq_misc_param,
319 		display_data_rq_sizing_params_st *rq_sizing_param,
320 		unsigned int vp_width,
321 		unsigned int vp_height,
322 		unsigned int data_pitch,
323 		unsigned int meta_pitch,
324 		unsigned int source_format,
325 		unsigned int tiling,
326 		unsigned int macro_tile_size,
327 		unsigned int source_scan,
328 		unsigned int is_chroma)
329 {
330 	bool surf_linear = (tiling == dm_sw_linear);
331 	bool surf_vert = (source_scan == dm_vert);
332 
333 	unsigned int bytes_per_element;
334 	unsigned int bytes_per_element_y = get_bytes_per_element((enum source_format_class)(source_format),
335 			false);
336 	unsigned int bytes_per_element_c = get_bytes_per_element((enum source_format_class)(source_format),
337 			true);
338 
339 	unsigned int blk256_width = 0;
340 	unsigned int blk256_height = 0;
341 
342 	unsigned int blk256_width_y = 0;
343 	unsigned int blk256_height_y = 0;
344 	unsigned int blk256_width_c = 0;
345 	unsigned int blk256_height_c = 0;
346 	unsigned int log2_bytes_per_element;
347 	unsigned int log2_blk256_width;
348 	unsigned int log2_blk256_height;
349 	unsigned int blk_bytes;
350 	unsigned int log2_blk_bytes;
351 	unsigned int log2_blk_height;
352 	unsigned int log2_blk_width;
353 	unsigned int log2_meta_req_bytes;
354 	unsigned int log2_meta_req_height;
355 	unsigned int log2_meta_req_width;
356 	unsigned int meta_req_width;
357 	unsigned int meta_req_height;
358 	unsigned int log2_meta_row_height;
359 	unsigned int meta_row_width_ub;
360 	unsigned int log2_meta_chunk_bytes;
361 	unsigned int log2_meta_chunk_height;
362 
363 	//full sized meta chunk width in unit of data elements
364 	unsigned int log2_meta_chunk_width;
365 	unsigned int log2_min_meta_chunk_bytes;
366 	unsigned int min_meta_chunk_width;
367 	unsigned int meta_chunk_width;
368 	unsigned int meta_chunk_per_row_int;
369 	unsigned int meta_row_remainder;
370 	unsigned int meta_chunk_threshold;
371 	unsigned int meta_blk_bytes;
372 	unsigned int meta_blk_height;
373 	unsigned int meta_blk_width;
374 	unsigned int meta_surface_bytes;
375 	unsigned int vmpg_bytes;
376 	unsigned int meta_pte_req_per_frame_ub;
377 	unsigned int meta_pte_bytes_per_frame_ub;
378 	const unsigned int log2_vmpg_bytes = dml_log2(mode_lib->soc.vmm_page_size_bytes);
379 	const unsigned int dpte_buf_in_pte_reqs = mode_lib->ip.dpte_buffer_size_in_pte_reqs_luma;
380 	const unsigned int pde_proc_buffer_size_64k_reqs =
381 			mode_lib->ip.pde_proc_buffer_size_64k_reqs;
382 
383 	unsigned int log2_vmpg_height = 0;
384 	unsigned int log2_vmpg_width = 0;
385 	unsigned int log2_dpte_req_height_ptes = 0;
386 	unsigned int log2_dpte_req_height = 0;
387 	unsigned int log2_dpte_req_width = 0;
388 	unsigned int log2_dpte_row_height_linear = 0;
389 	unsigned int log2_dpte_row_height = 0;
390 	unsigned int log2_dpte_group_width = 0;
391 	unsigned int dpte_row_width_ub = 0;
392 	unsigned int dpte_req_height = 0;
393 	unsigned int dpte_req_width = 0;
394 	unsigned int dpte_group_width = 0;
395 	unsigned int log2_dpte_group_bytes = 0;
396 	unsigned int log2_dpte_group_length = 0;
397 	unsigned int pde_buf_entries;
398 	bool yuv420 = (source_format == dm_420_8 || source_format == dm_420_10);
399 
400 	Calculate256BBlockSizes((enum source_format_class)(source_format),
401 			(enum dm_swizzle_mode)(tiling),
402 			bytes_per_element_y,
403 			bytes_per_element_c,
404 			&blk256_height_y,
405 			&blk256_height_c,
406 			&blk256_width_y,
407 			&blk256_width_c);
408 
409 	if (!is_chroma) {
410 		blk256_width = blk256_width_y;
411 		blk256_height = blk256_height_y;
412 		bytes_per_element = bytes_per_element_y;
413 	} else {
414 		blk256_width = blk256_width_c;
415 		blk256_height = blk256_height_c;
416 		bytes_per_element = bytes_per_element_c;
417 	}
418 
419 	log2_bytes_per_element = dml_log2(bytes_per_element);
420 
421 	dml_print("DML_DLG: %s: surf_linear        = %d\n", __func__, surf_linear);
422 	dml_print("DML_DLG: %s: surf_vert          = %d\n", __func__, surf_vert);
423 	dml_print("DML_DLG: %s: blk256_width       = %d\n", __func__, blk256_width);
424 	dml_print("DML_DLG: %s: blk256_height      = %d\n", __func__, blk256_height);
425 
426 	log2_blk256_width = dml_log2((double) blk256_width);
427 	log2_blk256_height = dml_log2((double) blk256_height);
428 	blk_bytes = surf_linear ?
429 			256 : get_blk_size_bytes((enum source_macro_tile_size) macro_tile_size);
430 	log2_blk_bytes = dml_log2((double) blk_bytes);
431 	log2_blk_height = 0;
432 	log2_blk_width = 0;
433 
434 	// remember log rule
435 	// "+" in log is multiply
436 	// "-" in log is divide
437 	// "/2" is like square root
438 	// blk is vertical biased
439 	if (tiling != dm_sw_linear)
440 		log2_blk_height = log2_blk256_height
441 				+ dml_ceil((double) (log2_blk_bytes - 8) / 2.0, 1);
442 	else
443 		log2_blk_height = 0;  // blk height of 1
444 
445 	log2_blk_width = log2_blk_bytes - log2_bytes_per_element - log2_blk_height;
446 
447 	if (!surf_vert) {
448 		rq_dlg_param->swath_width_ub = dml_round_to_multiple(vp_width - 1, blk256_width, 1)
449 				+ blk256_width;
450 		rq_dlg_param->req_per_swath_ub = rq_dlg_param->swath_width_ub >> log2_blk256_width;
451 	} else {
452 		rq_dlg_param->swath_width_ub = dml_round_to_multiple(vp_height - 1, blk256_height, 1)
453 				+ blk256_height;
454 		rq_dlg_param->req_per_swath_ub = rq_dlg_param->swath_width_ub >> log2_blk256_height;
455 	}
456 
457 	if (!surf_vert)
458 		rq_misc_param->full_swath_bytes = rq_dlg_param->swath_width_ub * blk256_height
459 				* bytes_per_element;
460 	else
461 		rq_misc_param->full_swath_bytes = rq_dlg_param->swath_width_ub * blk256_width
462 				* bytes_per_element;
463 
464 	rq_misc_param->blk256_height = blk256_height;
465 	rq_misc_param->blk256_width = blk256_width;
466 
467 	// -------
468 	// meta
469 	// -------
470 	log2_meta_req_bytes = 6; // meta request is 64b and is 8x8byte meta element
471 
472 	// each 64b meta request for dcn is 8x8 meta elements and
473 	// a meta element covers one 256b block of the the data surface.
474 	log2_meta_req_height = log2_blk256_height + 3; // meta req is 8x8 byte, each byte represent 1 blk256
475 	log2_meta_req_width = log2_meta_req_bytes + 8 - log2_bytes_per_element
476 			- log2_meta_req_height;
477 	meta_req_width = 1 << log2_meta_req_width;
478 	meta_req_height = 1 << log2_meta_req_height;
479 	log2_meta_row_height = 0;
480 	meta_row_width_ub = 0;
481 
482 	// the dimensions of a meta row are meta_row_width x meta_row_height in elements.
483 	// calculate upper bound of the meta_row_width
484 	if (!surf_vert) {
485 		log2_meta_row_height = log2_meta_req_height;
486 		meta_row_width_ub = dml_round_to_multiple(vp_width - 1, meta_req_width, 1)
487 				+ meta_req_width;
488 		rq_dlg_param->meta_req_per_row_ub = meta_row_width_ub / meta_req_width;
489 	} else {
490 		log2_meta_row_height = log2_meta_req_width;
491 		meta_row_width_ub = dml_round_to_multiple(vp_height - 1, meta_req_height, 1)
492 				+ meta_req_height;
493 		rq_dlg_param->meta_req_per_row_ub = meta_row_width_ub / meta_req_height;
494 	}
495 	rq_dlg_param->meta_bytes_per_row_ub = rq_dlg_param->meta_req_per_row_ub * 64;
496 
497 	rq_dlg_param->meta_row_height = 1 << log2_meta_row_height;
498 
499 	log2_meta_chunk_bytes = dml_log2(rq_sizing_param->meta_chunk_bytes);
500 	log2_meta_chunk_height = log2_meta_row_height;
501 
502 	//full sized meta chunk width in unit of data elements
503 	log2_meta_chunk_width = log2_meta_chunk_bytes + 8 - log2_bytes_per_element
504 			- log2_meta_chunk_height;
505 	log2_min_meta_chunk_bytes = dml_log2(rq_sizing_param->min_meta_chunk_bytes);
506 	min_meta_chunk_width = 1
507 			<< (log2_min_meta_chunk_bytes + 8 - log2_bytes_per_element
508 					- log2_meta_chunk_height);
509 	meta_chunk_width = 1 << log2_meta_chunk_width;
510 	meta_chunk_per_row_int = (unsigned int) (meta_row_width_ub / meta_chunk_width);
511 	meta_row_remainder = meta_row_width_ub % meta_chunk_width;
512 	meta_chunk_threshold = 0;
513 	meta_blk_bytes = 4096;
514 	meta_blk_height = blk256_height * 64;
515 	meta_blk_width = meta_blk_bytes * 256 / bytes_per_element / meta_blk_height;
516 	meta_surface_bytes = meta_pitch
517 			* (dml_round_to_multiple(vp_height - 1, meta_blk_height, 1) + meta_blk_height)
518 			* bytes_per_element / 256;
519 	vmpg_bytes = mode_lib->soc.vmm_page_size_bytes;
520 	meta_pte_req_per_frame_ub = (dml_round_to_multiple(meta_surface_bytes - vmpg_bytes,
521 			8 * vmpg_bytes,
522 			1) + 8 * vmpg_bytes) / (8 * vmpg_bytes);
523 	meta_pte_bytes_per_frame_ub = meta_pte_req_per_frame_ub * 64; //64B mpte request
524 	rq_dlg_param->meta_pte_bytes_per_frame_ub = meta_pte_bytes_per_frame_ub;
525 
526 	dml_print("DML_DLG: %s: meta_blk_height             = %d\n", __func__, meta_blk_height);
527 	dml_print("DML_DLG: %s: meta_blk_width              = %d\n", __func__, meta_blk_width);
528 	dml_print("DML_DLG: %s: meta_surface_bytes          = %d\n", __func__, meta_surface_bytes);
529 	dml_print("DML_DLG: %s: meta_pte_req_per_frame_ub   = %d\n",
530 			__func__,
531 			meta_pte_req_per_frame_ub);
532 	dml_print("DML_DLG: %s: meta_pte_bytes_per_frame_ub = %d\n",
533 			__func__,
534 			meta_pte_bytes_per_frame_ub);
535 
536 	if (!surf_vert)
537 		meta_chunk_threshold = 2 * min_meta_chunk_width - meta_req_width;
538 	else
539 		meta_chunk_threshold = 2 * min_meta_chunk_width - meta_req_height;
540 
541 	if (meta_row_remainder <= meta_chunk_threshold)
542 		rq_dlg_param->meta_chunks_per_row_ub = meta_chunk_per_row_int + 1;
543 	else
544 		rq_dlg_param->meta_chunks_per_row_ub = meta_chunk_per_row_int + 2;
545 
546 	// ------
547 	// dpte
548 	// ------
549 	if (surf_linear) {
550 		log2_vmpg_height = 0;   // one line high
551 	} else {
552 		log2_vmpg_height = (log2_vmpg_bytes - 8) / 2 + log2_blk256_height;
553 	}
554 	log2_vmpg_width = log2_vmpg_bytes - log2_bytes_per_element - log2_vmpg_height;
555 
556 	// only 3 possible shapes for dpte request in dimensions of ptes: 8x1, 4x2, 2x4.
557 	if (surf_linear) { //one 64B PTE request returns 8 PTEs
558 		log2_dpte_req_height_ptes = 0;
559 		log2_dpte_req_width = log2_vmpg_width + 3;
560 		log2_dpte_req_height = 0;
561 	} else if (log2_blk_bytes == 12) { //4KB tile means 4kB page size
562 		//one 64B req gives 8x1 PTEs for 4KB tile
563 		log2_dpte_req_height_ptes = 0;
564 		log2_dpte_req_width = log2_blk_width + 3;
565 		log2_dpte_req_height = log2_blk_height + 0;
566 	} else if ((log2_blk_bytes >= 16) && (log2_vmpg_bytes == 12)) { // tile block >= 64KB
567 		//two 64B reqs of 2x4 PTEs give 16 PTEs to cover 64KB
568 		log2_dpte_req_height_ptes = 4;
569 		log2_dpte_req_width = log2_blk256_width + 4; // log2_64KB_width
570 		log2_dpte_req_height = log2_blk256_height + 4; // log2_64KB_height
571 	} else { //64KB page size and must 64KB tile block
572 		 //one 64B req gives 8x1 PTEs for 64KB tile
573 		log2_dpte_req_height_ptes = 0;
574 		log2_dpte_req_width = log2_blk_width + 3;
575 		log2_dpte_req_height = log2_blk_height + 0;
576 	}
577 
578 	// The dpte request dimensions in data elements is dpte_req_width x dpte_req_height
579 	// log2_vmpg_width is how much 1 pte represent, now calculating how much a 64b pte req represent
580 	// That depends on the pte shape (i.e. 8x1, 4x2, 2x4)
581 	//log2_dpte_req_height    = log2_vmpg_height + log2_dpte_req_height_ptes;
582 	//log2_dpte_req_width     = log2_vmpg_width + log2_dpte_req_width_ptes;
583 	dpte_req_height = 1 << log2_dpte_req_height;
584 	dpte_req_width = 1 << log2_dpte_req_width;
585 
586 	// calculate pitch dpte row buffer can hold
587 	// round the result down to a power of two.
588 	pde_buf_entries = yuv420 ? (pde_proc_buffer_size_64k_reqs >> 1) : pde_proc_buffer_size_64k_reqs;
589 	if (surf_linear) {
590 		unsigned int dpte_row_height;
591 
592 		log2_dpte_row_height_linear = dml_floor(dml_log2(dml_min(64 * 1024 * pde_buf_entries
593 										/ bytes_per_element,
594 								dpte_buf_in_pte_reqs
595 										* dpte_req_width)
596 								/ data_pitch),
597 				1);
598 
599 		ASSERT(log2_dpte_row_height_linear >= 3);
600 
601 		if (log2_dpte_row_height_linear > 7)
602 			log2_dpte_row_height_linear = 7;
603 
604 		log2_dpte_row_height = log2_dpte_row_height_linear;
605 		// For linear, the dpte row is pitch dependent and the pte requests wrap at the pitch boundary.
606 		// the dpte_row_width_ub is the upper bound of data_pitch*dpte_row_height in elements with this unique buffering.
607 		dpte_row_height = 1 << log2_dpte_row_height;
608 		dpte_row_width_ub = dml_round_to_multiple(data_pitch * dpte_row_height - 1,
609 				dpte_req_width,
610 				1) + dpte_req_width;
611 		rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_width;
612 	} else {
613 		// the upper bound of the dpte_row_width without dependency on viewport position follows.
614 		// for tiled mode, row height is the same as req height and row store up to vp size upper bound
615 		if (!surf_vert) {
616 			log2_dpte_row_height = log2_dpte_req_height;
617 			dpte_row_width_ub = dml_round_to_multiple(vp_width - 1, dpte_req_width, 1)
618 					+ dpte_req_width;
619 			rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_width;
620 		} else {
621 			log2_dpte_row_height =
622 					(log2_blk_width < log2_dpte_req_width) ?
623 							log2_blk_width : log2_dpte_req_width;
624 			dpte_row_width_ub = dml_round_to_multiple(vp_height - 1, dpte_req_height, 1)
625 					+ dpte_req_height;
626 			rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_height;
627 		}
628 	}
629 	if (log2_blk_bytes >= 16 && log2_vmpg_bytes == 12) // tile block >= 64KB
630 		rq_dlg_param->dpte_bytes_per_row_ub = rq_dlg_param->dpte_req_per_row_ub * 128; //2*64B dpte request
631 	else
632 		rq_dlg_param->dpte_bytes_per_row_ub = rq_dlg_param->dpte_req_per_row_ub * 64; //64B dpte request
633 
634 	rq_dlg_param->dpte_row_height = 1 << log2_dpte_row_height;
635 
636 	// the dpte_group_bytes is reduced for the specific case of vertical
637 	// access of a tile surface that has dpte request of 8x1 ptes.
638 	if (!surf_linear & (log2_dpte_req_height_ptes == 0) & surf_vert) //reduced, in this case, will have page fault within a group
639 		rq_sizing_param->dpte_group_bytes = 512;
640 	else
641 		//full size
642 		rq_sizing_param->dpte_group_bytes = 2048;
643 
644 	//since pte request size is 64byte, the number of data pte requests per full sized group is as follows.
645 	log2_dpte_group_bytes = dml_log2(rq_sizing_param->dpte_group_bytes);
646 	log2_dpte_group_length = log2_dpte_group_bytes - 6; //length in 64b requests
647 
648 	// full sized data pte group width in elements
649 	if (!surf_vert)
650 		log2_dpte_group_width = log2_dpte_group_length + log2_dpte_req_width;
651 	else
652 		log2_dpte_group_width = log2_dpte_group_length + log2_dpte_req_height;
653 
654 	//But if the tile block >=64KB and the page size is 4KB, then each dPTE request is 2*64B
655 	if ((log2_blk_bytes >= 16) && (log2_vmpg_bytes == 12)) // tile block >= 64KB
656 		log2_dpte_group_width = log2_dpte_group_width - 1;
657 
658 	dpte_group_width = 1 << log2_dpte_group_width;
659 
660 	// since dpte groups are only aligned to dpte_req_width and not dpte_group_width,
661 	// the upper bound for the dpte groups per row is as follows.
662 	rq_dlg_param->dpte_groups_per_row_ub = dml_ceil((double) dpte_row_width_ub / dpte_group_width,
663 			1);
664 }
665 
666 static void get_surf_rq_param(struct display_mode_lib *mode_lib,
667 		display_data_rq_sizing_params_st *rq_sizing_param,
668 		display_data_rq_dlg_params_st *rq_dlg_param,
669 		display_data_rq_misc_params_st *rq_misc_param,
670 		const display_pipe_source_params_st pipe_src_param,
671 		bool is_chroma)
672 {
673 	bool mode_422 = false;
674 	unsigned int vp_width = 0;
675 	unsigned int vp_height = 0;
676 	unsigned int data_pitch = 0;
677 	unsigned int meta_pitch = 0;
678 	unsigned int ppe = mode_422 ? 2 : 1;
679 
680 	// TODO check if ppe apply for both luma and chroma in 422 case
681 	if (is_chroma) {
682 		vp_width = pipe_src_param.viewport_width_c / ppe;
683 		vp_height = pipe_src_param.viewport_height_c;
684 		data_pitch = pipe_src_param.data_pitch_c;
685 		meta_pitch = pipe_src_param.meta_pitch_c;
686 	} else {
687 		vp_width = pipe_src_param.viewport_width / ppe;
688 		vp_height = pipe_src_param.viewport_height;
689 		data_pitch = pipe_src_param.data_pitch;
690 		meta_pitch = pipe_src_param.meta_pitch;
691 	}
692 
693 	rq_sizing_param->chunk_bytes = 8192;
694 
695 	if (rq_sizing_param->chunk_bytes == 64 * 1024)
696 		rq_sizing_param->min_chunk_bytes = 0;
697 	else
698 		rq_sizing_param->min_chunk_bytes = 1024;
699 
700 	rq_sizing_param->meta_chunk_bytes = 2048;
701 	rq_sizing_param->min_meta_chunk_bytes = 256;
702 
703 	rq_sizing_param->mpte_group_bytes = 2048;
704 
705 	get_meta_and_pte_attr(mode_lib,
706 			rq_dlg_param,
707 			rq_misc_param,
708 			rq_sizing_param,
709 			vp_width,
710 			vp_height,
711 			data_pitch,
712 			meta_pitch,
713 			pipe_src_param.source_format,
714 			pipe_src_param.sw_mode,
715 			pipe_src_param.macro_tile_size,
716 			pipe_src_param.source_scan,
717 			is_chroma);
718 }
719 
720 static void dml20_rq_dlg_get_rq_params(struct display_mode_lib *mode_lib,
721 		display_rq_params_st *rq_param,
722 		const display_pipe_source_params_st pipe_src_param)
723 {
724 	// get param for luma surface
725 	rq_param->yuv420 = pipe_src_param.source_format == dm_420_8
726 			|| pipe_src_param.source_format == dm_420_10;
727 	rq_param->yuv420_10bpc = pipe_src_param.source_format == dm_420_10;
728 
729 	get_surf_rq_param(mode_lib,
730 			&(rq_param->sizing.rq_l),
731 			&(rq_param->dlg.rq_l),
732 			&(rq_param->misc.rq_l),
733 			pipe_src_param,
734 			0);
735 
736 	if (is_dual_plane((enum source_format_class)(pipe_src_param.source_format))) {
737 		// get param for chroma surface
738 		get_surf_rq_param(mode_lib,
739 				&(rq_param->sizing.rq_c),
740 				&(rq_param->dlg.rq_c),
741 				&(rq_param->misc.rq_c),
742 				pipe_src_param,
743 				1);
744 	}
745 
746 	// calculate how to split the det buffer space between luma and chroma
747 	handle_det_buf_split(mode_lib, rq_param, pipe_src_param);
748 	print__rq_params_st(mode_lib, *rq_param);
749 }
750 
751 void dml20_rq_dlg_get_rq_reg(struct display_mode_lib *mode_lib,
752 		display_rq_regs_st *rq_regs,
753 		const display_pipe_params_st pipe_param)
754 {
755 	display_rq_params_st rq_param = {0};
756 
757 	memset(rq_regs, 0, sizeof(*rq_regs));
758 	dml20_rq_dlg_get_rq_params(mode_lib, &rq_param, pipe_param.src);
759 	extract_rq_regs(mode_lib, rq_regs, rq_param);
760 
761 	print__rq_regs_st(mode_lib, *rq_regs);
762 }
763 
764 // Note: currently taken in as is.
765 // Nice to decouple code from hw register implement and extract code that are repeated for luma and chroma.
766 static void dml20_rq_dlg_get_dlg_params(struct display_mode_lib *mode_lib,
767 		const display_e2e_pipe_params_st *e2e_pipe_param,
768 		const unsigned int num_pipes,
769 		const unsigned int pipe_idx,
770 		display_dlg_regs_st *disp_dlg_regs,
771 		display_ttu_regs_st *disp_ttu_regs,
772 		const display_rq_dlg_params_st rq_dlg_param,
773 		const display_dlg_sys_params_st dlg_sys_param,
774 		const bool cstate_en,
775 		const bool pstate_en)
776 {
777 	const display_pipe_source_params_st *src = &e2e_pipe_param[pipe_idx].pipe.src;
778 	const display_pipe_dest_params_st *dst = &e2e_pipe_param[pipe_idx].pipe.dest;
779 	const display_output_params_st *dout = &e2e_pipe_param[pipe_idx].dout;
780 	const display_clocks_and_cfg_st *clks = &e2e_pipe_param[pipe_idx].clks_cfg;
781 	const scaler_ratio_depth_st *scl = &e2e_pipe_param[pipe_idx].pipe.scale_ratio_depth;
782 	const scaler_taps_st *taps = &e2e_pipe_param[pipe_idx].pipe.scale_taps;
783 
784 	// -------------------------
785 	// Section 1.15.2.1: OTG dependent Params
786 	// -------------------------
787 	// Timing
788 	unsigned int htotal = dst->htotal;
789 //    unsigned int hblank_start = dst.hblank_start; // TODO: Remove
790 	unsigned int hblank_end = dst->hblank_end;
791 	unsigned int vblank_start = dst->vblank_start;
792 	unsigned int vblank_end = dst->vblank_end;
793 	unsigned int min_vblank = mode_lib->ip.min_vblank_lines;
794 
795 	double dppclk_freq_in_mhz = clks->dppclk_mhz;
796 	double dispclk_freq_in_mhz = clks->dispclk_mhz;
797 	double refclk_freq_in_mhz = clks->refclk_mhz;
798 	double pclk_freq_in_mhz = dst->pixel_rate_mhz;
799 	bool interlaced = dst->interlaced;
800 
801 	double ref_freq_to_pix_freq = refclk_freq_in_mhz / pclk_freq_in_mhz;
802 
803 	double min_dcfclk_mhz;
804 	double t_calc_us;
805 	double min_ttu_vblank;
806 
807 	double min_dst_y_ttu_vblank;
808 	unsigned int dlg_vblank_start;
809 	bool dual_plane;
810 	bool mode_422;
811 	unsigned int access_dir;
812 	unsigned int vp_height_l;
813 	unsigned int vp_width_l;
814 	unsigned int vp_height_c;
815 	unsigned int vp_width_c;
816 
817 	// Scaling
818 	unsigned int htaps_l;
819 	unsigned int htaps_c;
820 	double hratio_l;
821 	double hratio_c;
822 	double vratio_l;
823 	double vratio_c;
824 	bool scl_enable;
825 
826 	double line_time_in_us;
827 	//    double vinit_l;
828 	//    double vinit_c;
829 	//    double vinit_bot_l;
830 	//    double vinit_bot_c;
831 
832 	//    unsigned int swath_height_l;
833 	unsigned int swath_width_ub_l;
834 	//    unsigned int dpte_bytes_per_row_ub_l;
835 	unsigned int dpte_groups_per_row_ub_l;
836 	//    unsigned int meta_pte_bytes_per_frame_ub_l;
837 	//    unsigned int meta_bytes_per_row_ub_l;
838 
839 	//    unsigned int swath_height_c;
840 	unsigned int swath_width_ub_c;
841 	//   unsigned int dpte_bytes_per_row_ub_c;
842 	unsigned int dpte_groups_per_row_ub_c;
843 
844 	unsigned int meta_chunks_per_row_ub_l;
845 	unsigned int meta_chunks_per_row_ub_c;
846 	unsigned int vupdate_offset;
847 	unsigned int vupdate_width;
848 	unsigned int vready_offset;
849 
850 	unsigned int dppclk_delay_subtotal;
851 	unsigned int dispclk_delay_subtotal;
852 	unsigned int pixel_rate_delay_subtotal;
853 
854 	unsigned int vstartup_start;
855 	unsigned int dst_x_after_scaler;
856 	unsigned int dst_y_after_scaler;
857 	double line_wait;
858 	double dst_y_prefetch;
859 	double dst_y_per_vm_vblank;
860 	double dst_y_per_row_vblank;
861 	double dst_y_per_vm_flip;
862 	double dst_y_per_row_flip;
863 	double min_dst_y_per_vm_vblank;
864 	double min_dst_y_per_row_vblank;
865 	double lsw;
866 	double vratio_pre_l;
867 	double vratio_pre_c;
868 	unsigned int req_per_swath_ub_l;
869 	unsigned int req_per_swath_ub_c;
870 	unsigned int meta_row_height_l;
871 	unsigned int meta_row_height_c;
872 	unsigned int swath_width_pixels_ub_l;
873 	unsigned int swath_width_pixels_ub_c;
874 	unsigned int scaler_rec_in_width_l;
875 	unsigned int scaler_rec_in_width_c;
876 	unsigned int dpte_row_height_l;
877 	unsigned int dpte_row_height_c;
878 	double hscale_pixel_rate_l;
879 	double hscale_pixel_rate_c;
880 	double min_hratio_fact_l;
881 	double min_hratio_fact_c;
882 	double refcyc_per_line_delivery_pre_l;
883 	double refcyc_per_line_delivery_pre_c;
884 	double refcyc_per_line_delivery_l;
885 	double refcyc_per_line_delivery_c;
886 
887 	double refcyc_per_req_delivery_pre_l;
888 	double refcyc_per_req_delivery_pre_c;
889 	double refcyc_per_req_delivery_l;
890 	double refcyc_per_req_delivery_c;
891 
892 	unsigned int full_recout_width;
893 	double xfc_transfer_delay;
894 	double xfc_precharge_delay;
895 	double xfc_remote_surface_flip_latency;
896 	double xfc_dst_y_delta_drq_limit;
897 	double xfc_prefetch_margin;
898 	double refcyc_per_req_delivery_pre_cur0;
899 	double refcyc_per_req_delivery_cur0;
900 	double refcyc_per_req_delivery_pre_cur1;
901 	double refcyc_per_req_delivery_cur1;
902 
903 	memset(disp_dlg_regs, 0, sizeof(*disp_dlg_regs));
904 	memset(disp_ttu_regs, 0, sizeof(*disp_ttu_regs));
905 
906 	dml_print("DML_DLG: %s:  cstate_en = %d\n", __func__, cstate_en);
907 	dml_print("DML_DLG: %s:  pstate_en = %d\n", __func__, pstate_en);
908 
909 	dml_print("DML_DLG: %s: dppclk_freq_in_mhz     = %3.2f\n", __func__, dppclk_freq_in_mhz);
910 	dml_print("DML_DLG: %s: dispclk_freq_in_mhz    = %3.2f\n", __func__, dispclk_freq_in_mhz);
911 	dml_print("DML_DLG: %s: refclk_freq_in_mhz     = %3.2f\n", __func__, refclk_freq_in_mhz);
912 	dml_print("DML_DLG: %s: pclk_freq_in_mhz       = %3.2f\n", __func__, pclk_freq_in_mhz);
913 	dml_print("DML_DLG: %s: interlaced             = %d\n", __func__, interlaced);
914 	ASSERT(ref_freq_to_pix_freq < 4.0);
915 
916 	disp_dlg_regs->ref_freq_to_pix_freq =
917 			(unsigned int) (ref_freq_to_pix_freq * dml_pow(2, 19));
918 	disp_dlg_regs->refcyc_per_htotal = (unsigned int) (ref_freq_to_pix_freq * (double) htotal
919 			* dml_pow(2, 8));
920 	disp_dlg_regs->dlg_vblank_end = interlaced ? (vblank_end / 2) : vblank_end; // 15 bits
921 	disp_dlg_regs->refcyc_h_blank_end = (unsigned int) ((double) hblank_end
922 			* (double) ref_freq_to_pix_freq);
923 	ASSERT(disp_dlg_regs->refcyc_h_blank_end < (unsigned int) dml_pow(2, 13));
924 
925 	min_dcfclk_mhz = dlg_sys_param.deepsleep_dcfclk_mhz;
926 	t_calc_us = get_tcalc(mode_lib, e2e_pipe_param, num_pipes);
927 	min_ttu_vblank = get_min_ttu_vblank(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
928 
929 	min_dst_y_ttu_vblank = min_ttu_vblank * pclk_freq_in_mhz / (double) htotal;
930 	dlg_vblank_start = interlaced ? (vblank_start / 2) : vblank_start;
931 
932 	disp_dlg_regs->min_dst_y_next_start = (unsigned int) ((double) dlg_vblank_start * dml_pow(2, 2));
933 	ASSERT(disp_dlg_regs->min_dst_y_next_start < (unsigned int) dml_pow(2, 18));
934 
935 	dml_print("DML_DLG: %s: min_dcfclk_mhz                         = %3.2f\n",
936 			__func__,
937 			min_dcfclk_mhz);
938 	dml_print("DML_DLG: %s: min_ttu_vblank                         = %3.2f\n",
939 			__func__,
940 			min_ttu_vblank);
941 	dml_print("DML_DLG: %s: min_dst_y_ttu_vblank                   = %3.2f\n",
942 			__func__,
943 			min_dst_y_ttu_vblank);
944 	dml_print("DML_DLG: %s: t_calc_us                              = %3.2f\n",
945 			__func__,
946 			t_calc_us);
947 	dml_print("DML_DLG: %s: disp_dlg_regs->min_dst_y_next_start    = 0x%0x\n",
948 			__func__,
949 			disp_dlg_regs->min_dst_y_next_start);
950 	dml_print("DML_DLG: %s: ref_freq_to_pix_freq                   = %3.2f\n",
951 			__func__,
952 			ref_freq_to_pix_freq);
953 
954 	// -------------------------
955 	// Section 1.15.2.2: Prefetch, Active and TTU
956 	// -------------------------
957 	// Prefetch Calc
958 	// Source
959 //             dcc_en              = src.dcc;
960 	dual_plane = is_dual_plane((enum source_format_class)(src->source_format));
961 	mode_422 = false; // TODO
962 	access_dir = (src->source_scan == dm_vert); // vp access direction: horizontal or vertical accessed
963 //      bytes_per_element_l = get_bytes_per_element(source_format_class(src.source_format), 0);
964 //      bytes_per_element_c = get_bytes_per_element(source_format_class(src.source_format), 1);
965 	vp_height_l = src->viewport_height;
966 	vp_width_l = src->viewport_width;
967 	vp_height_c = src->viewport_height_c;
968 	vp_width_c = src->viewport_width_c;
969 
970 	// Scaling
971 	htaps_l = taps->htaps;
972 	htaps_c = taps->htaps_c;
973 	hratio_l = scl->hscl_ratio;
974 	hratio_c = scl->hscl_ratio_c;
975 	vratio_l = scl->vscl_ratio;
976 	vratio_c = scl->vscl_ratio_c;
977 	scl_enable = scl->scl_enable;
978 
979 	line_time_in_us = (htotal / pclk_freq_in_mhz);
980 //     vinit_l         = scl.vinit;
981 //     vinit_c         = scl.vinit_c;
982 //     vinit_bot_l     = scl.vinit_bot;
983 //     vinit_bot_c     = scl.vinit_bot_c;
984 
985 //    unsigned int swath_height_l                 = rq_dlg_param.rq_l.swath_height;
986 	swath_width_ub_l = rq_dlg_param.rq_l.swath_width_ub;
987 //    unsigned int dpte_bytes_per_row_ub_l        = rq_dlg_param.rq_l.dpte_bytes_per_row_ub;
988 	dpte_groups_per_row_ub_l = rq_dlg_param.rq_l.dpte_groups_per_row_ub;
989 //    unsigned int meta_pte_bytes_per_frame_ub_l  = rq_dlg_param.rq_l.meta_pte_bytes_per_frame_ub;
990 //    unsigned int meta_bytes_per_row_ub_l        = rq_dlg_param.rq_l.meta_bytes_per_row_ub;
991 
992 //    unsigned int swath_height_c                 = rq_dlg_param.rq_c.swath_height;
993 	swath_width_ub_c = rq_dlg_param.rq_c.swath_width_ub;
994 	//   dpte_bytes_per_row_ub_c        = rq_dlg_param.rq_c.dpte_bytes_per_row_ub;
995 	dpte_groups_per_row_ub_c = rq_dlg_param.rq_c.dpte_groups_per_row_ub;
996 
997 	meta_chunks_per_row_ub_l = rq_dlg_param.rq_l.meta_chunks_per_row_ub;
998 	meta_chunks_per_row_ub_c = rq_dlg_param.rq_c.meta_chunks_per_row_ub;
999 	vupdate_offset = dst->vupdate_offset;
1000 	vupdate_width = dst->vupdate_width;
1001 	vready_offset = dst->vready_offset;
1002 
1003 	dppclk_delay_subtotal = mode_lib->ip.dppclk_delay_subtotal;
1004 	dispclk_delay_subtotal = mode_lib->ip.dispclk_delay_subtotal;
1005 
1006 	if (scl_enable)
1007 		dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_scl;
1008 	else
1009 		dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_scl_lb_only;
1010 
1011 	dppclk_delay_subtotal += mode_lib->ip.dppclk_delay_cnvc_formatter
1012 			+ src->num_cursors * mode_lib->ip.dppclk_delay_cnvc_cursor;
1013 
1014 	if (dout->dsc_enable) {
1015 		double dsc_delay = get_dsc_delay(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1016 
1017 		dispclk_delay_subtotal += dsc_delay;
1018 	}
1019 
1020 	pixel_rate_delay_subtotal = dppclk_delay_subtotal * pclk_freq_in_mhz / dppclk_freq_in_mhz
1021 			+ dispclk_delay_subtotal * pclk_freq_in_mhz / dispclk_freq_in_mhz;
1022 
1023 	vstartup_start = dst->vstartup_start;
1024 	if (interlaced) {
1025 		if (vstartup_start / 2.0
1026 				- (double) (vready_offset + vupdate_width + vupdate_offset) / htotal
1027 				<= vblank_end / 2.0)
1028 			disp_dlg_regs->vready_after_vcount0 = 1;
1029 		else
1030 			disp_dlg_regs->vready_after_vcount0 = 0;
1031 	} else {
1032 		if (vstartup_start
1033 				- (double) (vready_offset + vupdate_width + vupdate_offset) / htotal
1034 				<= vblank_end)
1035 			disp_dlg_regs->vready_after_vcount0 = 1;
1036 		else
1037 			disp_dlg_regs->vready_after_vcount0 = 0;
1038 	}
1039 
1040 	// TODO: Where is this coming from?
1041 	if (interlaced)
1042 		vstartup_start = vstartup_start / 2;
1043 
1044 	// TODO: What if this min_vblank doesn't match the value in the dml_config_settings.cpp?
1045 	if (vstartup_start >= min_vblank) {
1046 		dml_print("WARNING: DML_DLG: %s: vblank_start=%d vblank_end=%d\n",
1047 				__func__,
1048 				vblank_start,
1049 				vblank_end);
1050 		dml_print("WARNING: DML_DLG: %s: vstartup_start=%d should be less than min_vblank=%d\n",
1051 				__func__,
1052 				vstartup_start,
1053 				min_vblank);
1054 		min_vblank = vstartup_start + 1;
1055 		dml_print("WARNING: DML_DLG: %s: vstartup_start=%d should be less than min_vblank=%d\n",
1056 				__func__,
1057 				vstartup_start,
1058 				min_vblank);
1059 	}
1060 
1061 	dst_x_after_scaler = get_dst_x_after_scaler(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1062 	dst_y_after_scaler = get_dst_y_after_scaler(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1063 
1064 	dml_print("DML_DLG: %s: htotal                                 = %d\n", __func__, htotal);
1065 	dml_print("DML_DLG: %s: pixel_rate_delay_subtotal              = %d\n",
1066 			__func__,
1067 			pixel_rate_delay_subtotal);
1068 	dml_print("DML_DLG: %s: dst_x_after_scaler                     = %d\n",
1069 			__func__,
1070 			dst_x_after_scaler);
1071 	dml_print("DML_DLG: %s: dst_y_after_scaler                     = %d\n",
1072 			__func__,
1073 			dst_y_after_scaler);
1074 
1075 	// Lwait
1076 	line_wait = mode_lib->soc.urgent_latency_us;
1077 	if (cstate_en)
1078 		line_wait = dml_max(mode_lib->soc.sr_enter_plus_exit_time_us, line_wait);
1079 	if (pstate_en)
1080 		line_wait = dml_max(mode_lib->soc.dram_clock_change_latency_us
1081 						+ mode_lib->soc.urgent_latency_us,
1082 				line_wait);
1083 	line_wait = line_wait / line_time_in_us;
1084 
1085 	dst_y_prefetch = get_dst_y_prefetch(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1086 	dml_print("DML_DLG: %s: dst_y_prefetch (after rnd) = %3.2f\n", __func__, dst_y_prefetch);
1087 
1088 	dst_y_per_vm_vblank = get_dst_y_per_vm_vblank(mode_lib,
1089 			e2e_pipe_param,
1090 			num_pipes,
1091 			pipe_idx);
1092 	dst_y_per_row_vblank = get_dst_y_per_row_vblank(mode_lib,
1093 			e2e_pipe_param,
1094 			num_pipes,
1095 			pipe_idx);
1096 	dst_y_per_vm_flip = get_dst_y_per_vm_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1097 	dst_y_per_row_flip = get_dst_y_per_row_flip(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1098 
1099 	min_dst_y_per_vm_vblank = 8.0;
1100 	min_dst_y_per_row_vblank = 16.0;
1101 
1102 	// magic!
1103 	if (htotal <= 75) {
1104 		min_vblank = 300;
1105 		min_dst_y_per_vm_vblank = 100.0;
1106 		min_dst_y_per_row_vblank = 100.0;
1107 	}
1108 
1109 	dml_print("DML_DLG: %s: dst_y_per_vm_vblank    = %3.2f\n", __func__, dst_y_per_vm_vblank);
1110 	dml_print("DML_DLG: %s: dst_y_per_row_vblank   = %3.2f\n", __func__, dst_y_per_row_vblank);
1111 
1112 	ASSERT(dst_y_per_vm_vblank < min_dst_y_per_vm_vblank);
1113 	ASSERT(dst_y_per_row_vblank < min_dst_y_per_row_vblank);
1114 
1115 	ASSERT(dst_y_prefetch > (dst_y_per_vm_vblank + dst_y_per_row_vblank));
1116 	lsw = dst_y_prefetch - (dst_y_per_vm_vblank + dst_y_per_row_vblank);
1117 
1118 	dml_print("DML_DLG: %s: lsw = %3.2f\n", __func__, lsw);
1119 
1120 	vratio_pre_l = get_vratio_prefetch_l(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1121 	vratio_pre_c = get_vratio_prefetch_c(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1122 
1123 	dml_print("DML_DLG: %s: vratio_pre_l=%3.2f\n", __func__, vratio_pre_l);
1124 	dml_print("DML_DLG: %s: vratio_pre_c=%3.2f\n", __func__, vratio_pre_c);
1125 
1126 	// Active
1127 	req_per_swath_ub_l = rq_dlg_param.rq_l.req_per_swath_ub;
1128 	req_per_swath_ub_c = rq_dlg_param.rq_c.req_per_swath_ub;
1129 	meta_row_height_l = rq_dlg_param.rq_l.meta_row_height;
1130 	meta_row_height_c = rq_dlg_param.rq_c.meta_row_height;
1131 	swath_width_pixels_ub_l = 0;
1132 	swath_width_pixels_ub_c = 0;
1133 	scaler_rec_in_width_l = 0;
1134 	scaler_rec_in_width_c = 0;
1135 	dpte_row_height_l = rq_dlg_param.rq_l.dpte_row_height;
1136 	dpte_row_height_c = rq_dlg_param.rq_c.dpte_row_height;
1137 
1138 	if (mode_422) {
1139 		swath_width_pixels_ub_l = swath_width_ub_l * 2;  // *2 for 2 pixel per element
1140 		swath_width_pixels_ub_c = swath_width_ub_c * 2;
1141 	} else {
1142 		swath_width_pixels_ub_l = swath_width_ub_l * 1;
1143 		swath_width_pixels_ub_c = swath_width_ub_c * 1;
1144 	}
1145 
1146 	hscale_pixel_rate_l = 0.;
1147 	hscale_pixel_rate_c = 0.;
1148 	min_hratio_fact_l = 1.0;
1149 	min_hratio_fact_c = 1.0;
1150 
1151 	if (htaps_l <= 1)
1152 		min_hratio_fact_l = 2.0;
1153 	else if (htaps_l <= 6) {
1154 		if ((hratio_l * 2.0) > 4.0)
1155 			min_hratio_fact_l = 4.0;
1156 		else
1157 			min_hratio_fact_l = hratio_l * 2.0;
1158 	} else {
1159 		if (hratio_l > 4.0)
1160 			min_hratio_fact_l = 4.0;
1161 		else
1162 			min_hratio_fact_l = hratio_l;
1163 	}
1164 
1165 	hscale_pixel_rate_l = min_hratio_fact_l * dppclk_freq_in_mhz;
1166 
1167 	if (htaps_c <= 1)
1168 		min_hratio_fact_c = 2.0;
1169 	else if (htaps_c <= 6) {
1170 		if ((hratio_c * 2.0) > 4.0)
1171 			min_hratio_fact_c = 4.0;
1172 		else
1173 			min_hratio_fact_c = hratio_c * 2.0;
1174 	} else {
1175 		if (hratio_c > 4.0)
1176 			min_hratio_fact_c = 4.0;
1177 		else
1178 			min_hratio_fact_c = hratio_c;
1179 	}
1180 
1181 	hscale_pixel_rate_c = min_hratio_fact_c * dppclk_freq_in_mhz;
1182 
1183 	refcyc_per_line_delivery_pre_l = 0.;
1184 	refcyc_per_line_delivery_pre_c = 0.;
1185 	refcyc_per_line_delivery_l = 0.;
1186 	refcyc_per_line_delivery_c = 0.;
1187 
1188 	refcyc_per_req_delivery_pre_l = 0.;
1189 	refcyc_per_req_delivery_pre_c = 0.;
1190 	refcyc_per_req_delivery_l = 0.;
1191 	refcyc_per_req_delivery_c = 0.;
1192 
1193 	full_recout_width = 0;
1194 	// In ODM
1195 	if (src->is_hsplit) {
1196 		// This "hack"  is only allowed (and valid) for MPC combine. In ODM
1197 		// combine, you MUST specify the full_recout_width...according to Oswin
1198 		if (dst->full_recout_width == 0 && !dst->odm_combine) {
1199 			dml_print("DML_DLG: %s: Warning: full_recout_width not set in hsplit mode\n",
1200 					__func__);
1201 			full_recout_width = dst->recout_width * 2; // assume half split for dcn1
1202 		} else
1203 			full_recout_width = dst->full_recout_width;
1204 	} else
1205 		full_recout_width = dst->recout_width;
1206 
1207 	// As of DCN2, mpc_combine and odm_combine are mutually exclusive
1208 	refcyc_per_line_delivery_pre_l = get_refcyc_per_delivery(mode_lib,
1209 			refclk_freq_in_mhz,
1210 			pclk_freq_in_mhz,
1211 			dst->odm_combine,
1212 			full_recout_width,
1213 			dst->hactive,
1214 			vratio_pre_l,
1215 			hscale_pixel_rate_l,
1216 			swath_width_pixels_ub_l,
1217 			1); // per line
1218 
1219 	refcyc_per_line_delivery_l = get_refcyc_per_delivery(mode_lib,
1220 			refclk_freq_in_mhz,
1221 			pclk_freq_in_mhz,
1222 			dst->odm_combine,
1223 			full_recout_width,
1224 			dst->hactive,
1225 			vratio_l,
1226 			hscale_pixel_rate_l,
1227 			swath_width_pixels_ub_l,
1228 			1); // per line
1229 
1230 	dml_print("DML_DLG: %s: full_recout_width              = %d\n",
1231 			__func__,
1232 			full_recout_width);
1233 	dml_print("DML_DLG: %s: hscale_pixel_rate_l            = %3.2f\n",
1234 			__func__,
1235 			hscale_pixel_rate_l);
1236 	dml_print("DML_DLG: %s: refcyc_per_line_delivery_pre_l = %3.2f\n",
1237 			__func__,
1238 			refcyc_per_line_delivery_pre_l);
1239 	dml_print("DML_DLG: %s: refcyc_per_line_delivery_l     = %3.2f\n",
1240 			__func__,
1241 			refcyc_per_line_delivery_l);
1242 
1243 	if (dual_plane) {
1244 		refcyc_per_line_delivery_pre_c = get_refcyc_per_delivery(mode_lib,
1245 				refclk_freq_in_mhz,
1246 				pclk_freq_in_mhz,
1247 				dst->odm_combine,
1248 				full_recout_width,
1249 				dst->hactive,
1250 				vratio_pre_c,
1251 				hscale_pixel_rate_c,
1252 				swath_width_pixels_ub_c,
1253 				1); // per line
1254 
1255 		refcyc_per_line_delivery_c = get_refcyc_per_delivery(mode_lib,
1256 				refclk_freq_in_mhz,
1257 				pclk_freq_in_mhz,
1258 				dst->odm_combine,
1259 				full_recout_width,
1260 				dst->hactive,
1261 				vratio_c,
1262 				hscale_pixel_rate_c,
1263 				swath_width_pixels_ub_c,
1264 				1);  // per line
1265 
1266 		dml_print("DML_DLG: %s: refcyc_per_line_delivery_pre_c = %3.2f\n",
1267 				__func__,
1268 				refcyc_per_line_delivery_pre_c);
1269 		dml_print("DML_DLG: %s: refcyc_per_line_delivery_c     = %3.2f\n",
1270 				__func__,
1271 				refcyc_per_line_delivery_c);
1272 	}
1273 
1274 	// TTU - Luma / Chroma
1275 	if (access_dir) {  // vertical access
1276 		scaler_rec_in_width_l = vp_height_l;
1277 		scaler_rec_in_width_c = vp_height_c;
1278 	} else {
1279 		scaler_rec_in_width_l = vp_width_l;
1280 		scaler_rec_in_width_c = vp_width_c;
1281 	}
1282 
1283 	refcyc_per_req_delivery_pre_l = get_refcyc_per_delivery(mode_lib,
1284 			refclk_freq_in_mhz,
1285 			pclk_freq_in_mhz,
1286 			dst->odm_combine,
1287 			full_recout_width,
1288 			dst->hactive,
1289 			vratio_pre_l,
1290 			hscale_pixel_rate_l,
1291 			scaler_rec_in_width_l,
1292 			req_per_swath_ub_l);  // per req
1293 	refcyc_per_req_delivery_l = get_refcyc_per_delivery(mode_lib,
1294 			refclk_freq_in_mhz,
1295 			pclk_freq_in_mhz,
1296 			dst->odm_combine,
1297 			full_recout_width,
1298 			dst->hactive,
1299 			vratio_l,
1300 			hscale_pixel_rate_l,
1301 			scaler_rec_in_width_l,
1302 			req_per_swath_ub_l);  // per req
1303 
1304 	dml_print("DML_DLG: %s: refcyc_per_req_delivery_pre_l = %3.2f\n",
1305 			__func__,
1306 			refcyc_per_req_delivery_pre_l);
1307 	dml_print("DML_DLG: %s: refcyc_per_req_delivery_l     = %3.2f\n",
1308 			__func__,
1309 			refcyc_per_req_delivery_l);
1310 
1311 	ASSERT(refcyc_per_req_delivery_pre_l < dml_pow(2, 13));
1312 	ASSERT(refcyc_per_req_delivery_l < dml_pow(2, 13));
1313 
1314 	if (dual_plane) {
1315 		refcyc_per_req_delivery_pre_c = get_refcyc_per_delivery(mode_lib,
1316 				refclk_freq_in_mhz,
1317 				pclk_freq_in_mhz,
1318 				dst->odm_combine,
1319 				full_recout_width,
1320 				dst->hactive,
1321 				vratio_pre_c,
1322 				hscale_pixel_rate_c,
1323 				scaler_rec_in_width_c,
1324 				req_per_swath_ub_c);  // per req
1325 		refcyc_per_req_delivery_c = get_refcyc_per_delivery(mode_lib,
1326 				refclk_freq_in_mhz,
1327 				pclk_freq_in_mhz,
1328 				dst->odm_combine,
1329 				full_recout_width,
1330 				dst->hactive,
1331 				vratio_c,
1332 				hscale_pixel_rate_c,
1333 				scaler_rec_in_width_c,
1334 				req_per_swath_ub_c);  // per req
1335 
1336 		dml_print("DML_DLG: %s: refcyc_per_req_delivery_pre_c = %3.2f\n",
1337 				__func__,
1338 				refcyc_per_req_delivery_pre_c);
1339 		dml_print("DML_DLG: %s: refcyc_per_req_delivery_c     = %3.2f\n",
1340 				__func__,
1341 				refcyc_per_req_delivery_c);
1342 
1343 		ASSERT(refcyc_per_req_delivery_pre_c < dml_pow(2, 13));
1344 		ASSERT(refcyc_per_req_delivery_c < dml_pow(2, 13));
1345 	}
1346 
1347 	// XFC
1348 	xfc_transfer_delay = get_xfc_transfer_delay(mode_lib, e2e_pipe_param, num_pipes, pipe_idx);
1349 	xfc_precharge_delay = get_xfc_precharge_delay(mode_lib,
1350 			e2e_pipe_param,
1351 			num_pipes,
1352 			pipe_idx);
1353 	xfc_remote_surface_flip_latency = get_xfc_remote_surface_flip_latency(mode_lib,
1354 			e2e_pipe_param,
1355 			num_pipes,
1356 			pipe_idx);
1357 	xfc_dst_y_delta_drq_limit = xfc_remote_surface_flip_latency;
1358 	xfc_prefetch_margin = get_xfc_prefetch_margin(mode_lib,
1359 			e2e_pipe_param,
1360 			num_pipes,
1361 			pipe_idx);
1362 
1363 	// TTU - Cursor
1364 	refcyc_per_req_delivery_pre_cur0 = 0.0;
1365 	refcyc_per_req_delivery_cur0 = 0.0;
1366 	if (src->num_cursors > 0) {
1367 		calculate_ttu_cursor(mode_lib,
1368 				&refcyc_per_req_delivery_pre_cur0,
1369 				&refcyc_per_req_delivery_cur0,
1370 				refclk_freq_in_mhz,
1371 				ref_freq_to_pix_freq,
1372 				hscale_pixel_rate_l,
1373 				scl->hscl_ratio,
1374 				vratio_pre_l,
1375 				vratio_l,
1376 				src->cur0_src_width,
1377 				(enum cursor_bpp)(src->cur0_bpp));
1378 	}
1379 
1380 	refcyc_per_req_delivery_pre_cur1 = 0.0;
1381 	refcyc_per_req_delivery_cur1 = 0.0;
1382 	if (src->num_cursors > 1) {
1383 		calculate_ttu_cursor(mode_lib,
1384 				&refcyc_per_req_delivery_pre_cur1,
1385 				&refcyc_per_req_delivery_cur1,
1386 				refclk_freq_in_mhz,
1387 				ref_freq_to_pix_freq,
1388 				hscale_pixel_rate_l,
1389 				scl->hscl_ratio,
1390 				vratio_pre_l,
1391 				vratio_l,
1392 				src->cur1_src_width,
1393 				(enum cursor_bpp)(src->cur1_bpp));
1394 	}
1395 
1396 	// TTU - Misc
1397 	// all hard-coded
1398 
1399 	// Assignment to register structures
1400 	disp_dlg_regs->dst_y_after_scaler = dst_y_after_scaler; // in terms of line
1401 	disp_dlg_regs->refcyc_x_after_scaler = dst_x_after_scaler * ref_freq_to_pix_freq; // in terms of refclk
1402 	ASSERT(disp_dlg_regs->refcyc_x_after_scaler < (unsigned int) dml_pow(2, 13));
1403 	disp_dlg_regs->dst_y_prefetch = (unsigned int) (dst_y_prefetch * dml_pow(2, 2));
1404 	disp_dlg_regs->dst_y_per_vm_vblank = (unsigned int) (dst_y_per_vm_vblank * dml_pow(2, 2));
1405 	disp_dlg_regs->dst_y_per_row_vblank = (unsigned int) (dst_y_per_row_vblank * dml_pow(2, 2));
1406 	disp_dlg_regs->dst_y_per_vm_flip = (unsigned int) (dst_y_per_vm_flip * dml_pow(2, 2));
1407 	disp_dlg_regs->dst_y_per_row_flip = (unsigned int) (dst_y_per_row_flip * dml_pow(2, 2));
1408 
1409 	disp_dlg_regs->vratio_prefetch = (unsigned int) (vratio_pre_l * dml_pow(2, 19));
1410 	disp_dlg_regs->vratio_prefetch_c = (unsigned int) (vratio_pre_c * dml_pow(2, 19));
1411 
1412 	disp_dlg_regs->refcyc_per_pte_group_vblank_l =
1413 			(unsigned int) (dst_y_per_row_vblank * (double) htotal
1414 					* ref_freq_to_pix_freq / (double) dpte_groups_per_row_ub_l);
1415 	ASSERT(disp_dlg_regs->refcyc_per_pte_group_vblank_l < (unsigned int) dml_pow(2, 13));
1416 
1417 	if (dual_plane) {
1418 		disp_dlg_regs->refcyc_per_pte_group_vblank_c = (unsigned int) (dst_y_per_row_vblank
1419 				* (double) htotal * ref_freq_to_pix_freq
1420 				/ (double) dpte_groups_per_row_ub_c);
1421 		ASSERT(disp_dlg_regs->refcyc_per_pte_group_vblank_c
1422 						< (unsigned int) dml_pow(2, 13));
1423 	}
1424 
1425 	disp_dlg_regs->refcyc_per_meta_chunk_vblank_l =
1426 			(unsigned int) (dst_y_per_row_vblank * (double) htotal
1427 					* ref_freq_to_pix_freq / (double) meta_chunks_per_row_ub_l);
1428 	ASSERT(disp_dlg_regs->refcyc_per_meta_chunk_vblank_l < (unsigned int) dml_pow(2, 13));
1429 
1430 	disp_dlg_regs->refcyc_per_meta_chunk_vblank_c =
1431 			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
1432 
1433 	disp_dlg_regs->refcyc_per_pte_group_flip_l = (unsigned int) (dst_y_per_row_flip * htotal
1434 			* ref_freq_to_pix_freq) / dpte_groups_per_row_ub_l;
1435 	disp_dlg_regs->refcyc_per_meta_chunk_flip_l = (unsigned int) (dst_y_per_row_flip * htotal
1436 			* ref_freq_to_pix_freq) / meta_chunks_per_row_ub_l;
1437 
1438 	if (dual_plane) {
1439 		disp_dlg_regs->refcyc_per_pte_group_flip_c = (unsigned int) (dst_y_per_row_flip
1440 				* htotal * ref_freq_to_pix_freq) / dpte_groups_per_row_ub_c;
1441 		disp_dlg_regs->refcyc_per_meta_chunk_flip_c = (unsigned int) (dst_y_per_row_flip
1442 				* htotal * ref_freq_to_pix_freq) / meta_chunks_per_row_ub_c;
1443 	}
1444 
1445 	disp_dlg_regs->dst_y_per_pte_row_nom_l = (unsigned int) ((double) dpte_row_height_l
1446 			/ (double) vratio_l * dml_pow(2, 2));
1447 	ASSERT(disp_dlg_regs->dst_y_per_pte_row_nom_l < (unsigned int) dml_pow(2, 17));
1448 
1449 	if (dual_plane) {
1450 		disp_dlg_regs->dst_y_per_pte_row_nom_c = (unsigned int) ((double) dpte_row_height_c
1451 				/ (double) vratio_c * dml_pow(2, 2));
1452 		if (disp_dlg_regs->dst_y_per_pte_row_nom_c >= (unsigned int) dml_pow(2, 17)) {
1453 			dml_print("DML_DLG: %s: Warning dst_y_per_pte_row_nom_c %u larger than supported by register format U15.2 %u\n",
1454 					__func__,
1455 					disp_dlg_regs->dst_y_per_pte_row_nom_c,
1456 					(unsigned int) dml_pow(2, 17) - 1);
1457 		}
1458 	}
1459 
1460 	disp_dlg_regs->dst_y_per_meta_row_nom_l = (unsigned int) ((double) meta_row_height_l
1461 			/ (double) vratio_l * dml_pow(2, 2));
1462 	ASSERT(disp_dlg_regs->dst_y_per_meta_row_nom_l < (unsigned int) dml_pow(2, 17));
1463 
1464 	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
1465 
1466 	disp_dlg_regs->refcyc_per_pte_group_nom_l = (unsigned int) ((double) dpte_row_height_l
1467 			/ (double) vratio_l * (double) htotal * ref_freq_to_pix_freq
1468 			/ (double) dpte_groups_per_row_ub_l);
1469 	if (disp_dlg_regs->refcyc_per_pte_group_nom_l >= (unsigned int) dml_pow(2, 23))
1470 		disp_dlg_regs->refcyc_per_pte_group_nom_l = dml_pow(2, 23) - 1;
1471 	disp_dlg_regs->refcyc_per_meta_chunk_nom_l = (unsigned int) ((double) meta_row_height_l
1472 			/ (double) vratio_l * (double) htotal * ref_freq_to_pix_freq
1473 			/ (double) meta_chunks_per_row_ub_l);
1474 	if (disp_dlg_regs->refcyc_per_meta_chunk_nom_l >= (unsigned int) dml_pow(2, 23))
1475 		disp_dlg_regs->refcyc_per_meta_chunk_nom_l = dml_pow(2, 23) - 1;
1476 
1477 	if (dual_plane) {
1478 		disp_dlg_regs->refcyc_per_pte_group_nom_c =
1479 				(unsigned int) ((double) dpte_row_height_c / (double) vratio_c
1480 						* (double) htotal * ref_freq_to_pix_freq
1481 						/ (double) dpte_groups_per_row_ub_c);
1482 		if (disp_dlg_regs->refcyc_per_pte_group_nom_c >= (unsigned int) dml_pow(2, 23))
1483 			disp_dlg_regs->refcyc_per_pte_group_nom_c = dml_pow(2, 23) - 1;
1484 
1485 		// TODO: Is this the right calculation? Does htotal need to be halved?
1486 		disp_dlg_regs->refcyc_per_meta_chunk_nom_c =
1487 				(unsigned int) ((double) meta_row_height_c / (double) vratio_c
1488 						* (double) htotal * ref_freq_to_pix_freq
1489 						/ (double) meta_chunks_per_row_ub_c);
1490 		if (disp_dlg_regs->refcyc_per_meta_chunk_nom_c >= (unsigned int) dml_pow(2, 23))
1491 			disp_dlg_regs->refcyc_per_meta_chunk_nom_c = dml_pow(2, 23) - 1;
1492 	}
1493 
1494 	disp_dlg_regs->refcyc_per_line_delivery_pre_l = (unsigned int) dml_floor(refcyc_per_line_delivery_pre_l,
1495 			1);
1496 	disp_dlg_regs->refcyc_per_line_delivery_l = (unsigned int) dml_floor(refcyc_per_line_delivery_l,
1497 			1);
1498 	ASSERT(disp_dlg_regs->refcyc_per_line_delivery_pre_l < (unsigned int) dml_pow(2, 13));
1499 	ASSERT(disp_dlg_regs->refcyc_per_line_delivery_l < (unsigned int) dml_pow(2, 13));
1500 
1501 	disp_dlg_regs->refcyc_per_line_delivery_pre_c = (unsigned int) dml_floor(refcyc_per_line_delivery_pre_c,
1502 			1);
1503 	disp_dlg_regs->refcyc_per_line_delivery_c = (unsigned int) dml_floor(refcyc_per_line_delivery_c,
1504 			1);
1505 	ASSERT(disp_dlg_regs->refcyc_per_line_delivery_pre_c < (unsigned int) dml_pow(2, 13));
1506 	ASSERT(disp_dlg_regs->refcyc_per_line_delivery_c < (unsigned int) dml_pow(2, 13));
1507 
1508 	disp_dlg_regs->chunk_hdl_adjust_cur0 = 3;
1509 	disp_dlg_regs->dst_y_offset_cur0 = 0;
1510 	disp_dlg_regs->chunk_hdl_adjust_cur1 = 3;
1511 	disp_dlg_regs->dst_y_offset_cur1 = 0;
1512 
1513 	disp_dlg_regs->xfc_reg_transfer_delay = xfc_transfer_delay;
1514 	disp_dlg_regs->xfc_reg_precharge_delay = xfc_precharge_delay;
1515 	disp_dlg_regs->xfc_reg_remote_surface_flip_latency = xfc_remote_surface_flip_latency;
1516 	disp_dlg_regs->xfc_reg_prefetch_margin = dml_ceil(xfc_prefetch_margin * refclk_freq_in_mhz,
1517 			1);
1518 
1519 	// slave has to have this value also set to off
1520 	if (src->xfc_enable && !src->xfc_slave)
1521 		disp_dlg_regs->dst_y_delta_drq_limit = dml_ceil(xfc_dst_y_delta_drq_limit, 1);
1522 	else
1523 		disp_dlg_regs->dst_y_delta_drq_limit = 0x7fff; // off
1524 
1525 	disp_ttu_regs->refcyc_per_req_delivery_pre_l = (unsigned int) (refcyc_per_req_delivery_pre_l
1526 			* dml_pow(2, 10));
1527 	disp_ttu_regs->refcyc_per_req_delivery_l = (unsigned int) (refcyc_per_req_delivery_l
1528 			* dml_pow(2, 10));
1529 	disp_ttu_regs->refcyc_per_req_delivery_pre_c = (unsigned int) (refcyc_per_req_delivery_pre_c
1530 			* dml_pow(2, 10));
1531 	disp_ttu_regs->refcyc_per_req_delivery_c = (unsigned int) (refcyc_per_req_delivery_c
1532 			* dml_pow(2, 10));
1533 	disp_ttu_regs->refcyc_per_req_delivery_pre_cur0 =
1534 			(unsigned int) (refcyc_per_req_delivery_pre_cur0 * dml_pow(2, 10));
1535 	disp_ttu_regs->refcyc_per_req_delivery_cur0 = (unsigned int) (refcyc_per_req_delivery_cur0
1536 			* dml_pow(2, 10));
1537 	disp_ttu_regs->refcyc_per_req_delivery_pre_cur1 =
1538 			(unsigned int) (refcyc_per_req_delivery_pre_cur1 * dml_pow(2, 10));
1539 	disp_ttu_regs->refcyc_per_req_delivery_cur1 = (unsigned int) (refcyc_per_req_delivery_cur1
1540 			* dml_pow(2, 10));
1541 	disp_ttu_regs->qos_level_low_wm = 0;
1542 	ASSERT(disp_ttu_regs->qos_level_low_wm < dml_pow(2, 14));
1543 	disp_ttu_regs->qos_level_high_wm = (unsigned int) (4.0 * (double) htotal
1544 			* ref_freq_to_pix_freq);
1545 	/*ASSERT(disp_ttu_regs->qos_level_high_wm < dml_pow(2, 14));*/
1546 
1547 	disp_ttu_regs->qos_level_flip = 14;
1548 	disp_ttu_regs->qos_level_fixed_l = 8;
1549 	disp_ttu_regs->qos_level_fixed_c = 8;
1550 	disp_ttu_regs->qos_level_fixed_cur0 = 8;
1551 	disp_ttu_regs->qos_ramp_disable_l = 0;
1552 	disp_ttu_regs->qos_ramp_disable_c = 0;
1553 	disp_ttu_regs->qos_ramp_disable_cur0 = 0;
1554 
1555 	disp_ttu_regs->min_ttu_vblank = min_ttu_vblank * refclk_freq_in_mhz;
1556 	ASSERT(disp_ttu_regs->min_ttu_vblank < dml_pow(2, 24));
1557 
1558 	print__ttu_regs_st(mode_lib, *disp_ttu_regs);
1559 	print__dlg_regs_st(mode_lib, *disp_dlg_regs);
1560 }
1561 
1562 void dml20_rq_dlg_get_dlg_reg(struct display_mode_lib *mode_lib,
1563 		display_dlg_regs_st *dlg_regs,
1564 		display_ttu_regs_st *ttu_regs,
1565 		display_e2e_pipe_params_st *e2e_pipe_param,
1566 		const unsigned int num_pipes,
1567 		const unsigned int pipe_idx,
1568 		const bool cstate_en,
1569 		const bool pstate_en,
1570 		const bool vm_en,
1571 		const bool ignore_viewport_pos,
1572 		const bool immediate_flip_support)
1573 {
1574 	display_rq_params_st rq_param = {0};
1575 	display_dlg_sys_params_st dlg_sys_param = {0};
1576 
1577 	// Get watermark and Tex.
1578 	dlg_sys_param.t_urg_wm_us = get_wm_urgent(mode_lib, e2e_pipe_param, num_pipes);
1579 	dlg_sys_param.deepsleep_dcfclk_mhz = get_clk_dcf_deepsleep(mode_lib,
1580 			e2e_pipe_param,
1581 			num_pipes);
1582 	dlg_sys_param.t_extra_us = get_urgent_extra_latency(mode_lib, e2e_pipe_param, num_pipes);
1583 	dlg_sys_param.mem_trip_us = get_wm_memory_trip(mode_lib, e2e_pipe_param, num_pipes);
1584 	dlg_sys_param.t_mclk_wm_us = get_wm_dram_clock_change(mode_lib, e2e_pipe_param, num_pipes);
1585 	dlg_sys_param.t_sr_wm_us = get_wm_stutter_enter_exit(mode_lib, e2e_pipe_param, num_pipes);
1586 	dlg_sys_param.total_flip_bw = get_total_immediate_flip_bw(mode_lib,
1587 			e2e_pipe_param,
1588 			num_pipes);
1589 	dlg_sys_param.total_flip_bytes = get_total_immediate_flip_bytes(mode_lib,
1590 			e2e_pipe_param,
1591 			num_pipes);
1592 	dlg_sys_param.t_srx_delay_us = mode_lib->ip.dcfclk_cstate_latency
1593 			/ dlg_sys_param.deepsleep_dcfclk_mhz; // TODO: Deprecated
1594 
1595 	print__dlg_sys_params_st(mode_lib, dlg_sys_param);
1596 
1597 	// system parameter calculation done
1598 
1599 	dml_print("DML_DLG: Calculation for pipe[%d] start\n\n", pipe_idx);
1600 	dml20_rq_dlg_get_rq_params(mode_lib, &rq_param, e2e_pipe_param[pipe_idx].pipe.src);
1601 	dml20_rq_dlg_get_dlg_params(mode_lib,
1602 			e2e_pipe_param,
1603 			num_pipes,
1604 			pipe_idx,
1605 			dlg_regs,
1606 			ttu_regs,
1607 			rq_param.dlg,
1608 			dlg_sys_param,
1609 			cstate_en,
1610 			pstate_en);
1611 	dml_print("DML_DLG: Calculation for pipe[%d] end\n", pipe_idx);
1612 }
1613 
1614 static void calculate_ttu_cursor(struct display_mode_lib *mode_lib,
1615 		double *refcyc_per_req_delivery_pre_cur,
1616 		double *refcyc_per_req_delivery_cur,
1617 		double refclk_freq_in_mhz,
1618 		double ref_freq_to_pix_freq,
1619 		double hscale_pixel_rate_l,
1620 		double hscl_ratio,
1621 		double vratio_pre_l,
1622 		double vratio_l,
1623 		unsigned int cur_width,
1624 		enum cursor_bpp cur_bpp)
1625 {
1626 	unsigned int cur_src_width = cur_width;
1627 	unsigned int cur_req_size = 0;
1628 	unsigned int cur_req_width = 0;
1629 	double cur_width_ub = 0.0;
1630 	double cur_req_per_width = 0.0;
1631 	double hactive_cur = 0.0;
1632 
1633 	ASSERT(cur_src_width <= 256);
1634 
1635 	*refcyc_per_req_delivery_pre_cur = 0.0;
1636 	*refcyc_per_req_delivery_cur = 0.0;
1637 	if (cur_src_width > 0) {
1638 		unsigned int cur_bit_per_pixel = 0;
1639 
1640 		if (cur_bpp == dm_cur_2bit) {
1641 			cur_req_size = 64; // byte
1642 			cur_bit_per_pixel = 2;
1643 		} else { // 32bit
1644 			cur_bit_per_pixel = 32;
1645 			if (cur_src_width >= 1 && cur_src_width <= 16)
1646 				cur_req_size = 64;
1647 			else if (cur_src_width >= 17 && cur_src_width <= 31)
1648 				cur_req_size = 128;
1649 			else
1650 				cur_req_size = 256;
1651 		}
1652 
1653 		cur_req_width = (double) cur_req_size / ((double) cur_bit_per_pixel / 8.0);
1654 		cur_width_ub = dml_ceil((double) cur_src_width / (double) cur_req_width, 1)
1655 				* (double) cur_req_width;
1656 		cur_req_per_width = cur_width_ub / (double) cur_req_width;
1657 		hactive_cur = (double) cur_src_width / hscl_ratio; // TODO: oswin to think about what to do for cursor
1658 
1659 		if (vratio_pre_l <= 1.0) {
1660 			*refcyc_per_req_delivery_pre_cur = hactive_cur * ref_freq_to_pix_freq
1661 					/ (double) cur_req_per_width;
1662 		} else {
1663 			*refcyc_per_req_delivery_pre_cur = (double) refclk_freq_in_mhz
1664 					* (double) cur_src_width / hscale_pixel_rate_l
1665 					/ (double) cur_req_per_width;
1666 		}
1667 
1668 		ASSERT(*refcyc_per_req_delivery_pre_cur < dml_pow(2, 13));
1669 
1670 		if (vratio_l <= 1.0) {
1671 			*refcyc_per_req_delivery_cur = hactive_cur * ref_freq_to_pix_freq
1672 					/ (double) cur_req_per_width;
1673 		} else {
1674 			*refcyc_per_req_delivery_cur = (double) refclk_freq_in_mhz
1675 					* (double) cur_src_width / hscale_pixel_rate_l
1676 					/ (double) cur_req_per_width;
1677 		}
1678 
1679 		dml_print("DML_DLG: %s: cur_req_width                     = %d\n",
1680 				__func__,
1681 				cur_req_width);
1682 		dml_print("DML_DLG: %s: cur_width_ub                      = %3.2f\n",
1683 				__func__,
1684 				cur_width_ub);
1685 		dml_print("DML_DLG: %s: cur_req_per_width                 = %3.2f\n",
1686 				__func__,
1687 				cur_req_per_width);
1688 		dml_print("DML_DLG: %s: hactive_cur                       = %3.2f\n",
1689 				__func__,
1690 				hactive_cur);
1691 		dml_print("DML_DLG: %s: refcyc_per_req_delivery_pre_cur   = %3.2f\n",
1692 				__func__,
1693 				*refcyc_per_req_delivery_pre_cur);
1694 		dml_print("DML_DLG: %s: refcyc_per_req_delivery_cur       = %3.2f\n",
1695 				__func__,
1696 				*refcyc_per_req_delivery_cur);
1697 
1698 		ASSERT(*refcyc_per_req_delivery_cur < dml_pow(2, 13));
1699 	}
1700 }
1701