1/*
2 * Copyright 2019-2021 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#include "resource.h"
26#include "clk_mgr.h"
27#include "dcn20/dcn20_resource.h"
28#include "dcn301/dcn301_resource.h"
29#include "clk_mgr/dcn301/vg_clk_mgr.h"
30
31#include "dml/dcn20/dcn20_fpu.h"
32#include "dcn301_fpu.h"
33
34#define TO_DCN301_RES_POOL(pool)\
35 container_of(pool, struct dcn301_resource_pool, base)
36
37/* Based on: //vidip/dc/dcn3/doc/architecture/DCN3x_Display_Mode.xlsm#83 */
38struct _vcs_dpi_ip_params_st dcn3_01_ip = {
39 .odm_capable = 1,
40 .gpuvm_enable = 1,
41 .hostvm_enable = 1,
42 .gpuvm_max_page_table_levels = 1,
43 .hostvm_max_page_table_levels = 2,
44 .hostvm_cached_page_table_levels = 0,
45 .pte_group_size_bytes = 2048,
46 .num_dsc = 3,
47 .rob_buffer_size_kbytes = 184,
48 .det_buffer_size_kbytes = 184,
49 .dpte_buffer_size_in_pte_reqs_luma = 64,
50 .dpte_buffer_size_in_pte_reqs_chroma = 32,
51 .pde_proc_buffer_size_64k_reqs = 48,
52 .dpp_output_buffer_pixels = 2560,
53 .opp_output_buffer_lines = 1,
54 .pixel_chunk_size_kbytes = 8,
55 .meta_chunk_size_kbytes = 2,
56 .writeback_chunk_size_kbytes = 8,
57 .line_buffer_size_bits = 789504,
58 .is_line_buffer_bpp_fixed = 0, // ?
59 .line_buffer_fixed_bpp = 48, // ?
60 .dcc_supported = true,
61 .writeback_interface_buffer_size_kbytes = 90,
62 .writeback_line_buffer_buffer_size = 656640,
63 .max_line_buffer_lines = 12,
64 .writeback_luma_buffer_size_kbytes = 12, // writeback_line_buffer_buffer_size = 656640
65 .writeback_chroma_buffer_size_kbytes = 8,
66 .writeback_chroma_line_buffer_width_pixels = 4,
67 .writeback_max_hscl_ratio = 1,
68 .writeback_max_vscl_ratio = 1,
69 .writeback_min_hscl_ratio = 1,
70 .writeback_min_vscl_ratio = 1,
71 .writeback_max_hscl_taps = 1,
72 .writeback_max_vscl_taps = 1,
73 .writeback_line_buffer_luma_buffer_size = 0,
74 .writeback_line_buffer_chroma_buffer_size = 14643,
75 .cursor_buffer_size = 8,
76 .cursor_chunk_size = 2,
77 .max_num_otg = 4,
78 .max_num_dpp = 4,
79 .max_num_wb = 1,
80 .max_dchub_pscl_bw_pix_per_clk = 4,
81 .max_pscl_lb_bw_pix_per_clk = 2,
82 .max_lb_vscl_bw_pix_per_clk = 4,
83 .max_vscl_hscl_bw_pix_per_clk = 4,
84 .max_hscl_ratio = 6,
85 .max_vscl_ratio = 6,
86 .hscl_mults = 4,
87 .vscl_mults = 4,
88 .max_hscl_taps = 8,
89 .max_vscl_taps = 8,
90 .dispclk_ramp_margin_percent = 1,
91 .underscan_factor = 1.11,
92 .min_vblank_lines = 32,
93 .dppclk_delay_subtotal = 46,
94 .dynamic_metadata_vm_enabled = true,
95 .dppclk_delay_scl_lb_only = 16,
96 .dppclk_delay_scl = 50,
97 .dppclk_delay_cnvc_formatter = 27,
98 .dppclk_delay_cnvc_cursor = 6,
99 .dispclk_delay_subtotal = 119,
100 .dcfclk_cstate_latency = 5.2, // SRExitTime
101 .max_inter_dcn_tile_repeaters = 8,
102 .max_num_hdmi_frl_outputs = 0,
103 .odm_combine_4to1_supported = true,
104
105 .xfc_supported = false,
106 .xfc_fill_bw_overhead_percent = 10.0,
107 .xfc_fill_constant_bytes = 0,
108 .gfx7_compat_tiling_supported = 0,
109 .number_of_cursors = 1,
110};
111
112struct _vcs_dpi_soc_bounding_box_st dcn3_01_soc = {
113 .clock_limits = {
114 {
115 .state = 0,
116 .dram_speed_mts = 2400.0,
117 .fabricclk_mhz = 600,
118 .socclk_mhz = 278.0,
119 .dcfclk_mhz = 400.0,
120 .dscclk_mhz = 206.0,
121 .dppclk_mhz = 1015.0,
122 .dispclk_mhz = 1015.0,
123 .phyclk_mhz = 600.0,
124 },
125
126 {
127 .state = 1,
128 .dram_speed_mts = 2400.0,
129 .fabricclk_mhz = 688,
130 .socclk_mhz = 278.0,
131 .dcfclk_mhz = 400.0,
132 .dscclk_mhz = 206.0,
133 .dppclk_mhz = 1015.0,
134 .dispclk_mhz = 1015.0,
135 .phyclk_mhz = 600.0,
136 },
137
138 {
139 .state = 2,
140 .dram_speed_mts = 4267.0,
141 .fabricclk_mhz = 1067,
142 .socclk_mhz = 278.0,
143 .dcfclk_mhz = 608.0,
144 .dscclk_mhz = 296.0,
145 .dppclk_mhz = 1015.0,
146 .dispclk_mhz = 1015.0,
147 .phyclk_mhz = 810.0,
148 },
149
150 {
151 .state = 3,
152 .dram_speed_mts = 4267.0,
153 .fabricclk_mhz = 1067,
154 .socclk_mhz = 715.0,
155 .dcfclk_mhz = 676.0,
156 .dscclk_mhz = 338.0,
157 .dppclk_mhz = 1015.0,
158 .dispclk_mhz = 1015.0,
159 .phyclk_mhz = 810.0,
160 },
161
162 {
163 .state = 4,
164 .dram_speed_mts = 4267.0,
165 .fabricclk_mhz = 1067,
166 .socclk_mhz = 953.0,
167 .dcfclk_mhz = 810.0,
168 .dscclk_mhz = 338.0,
169 .dppclk_mhz = 1015.0,
170 .dispclk_mhz = 1015.0,
171 .phyclk_mhz = 810.0,
172 },
173 },
174
175 .sr_exit_time_us = 9.0,
176 .sr_enter_plus_exit_time_us = 11.0,
177 .urgent_latency_us = 4.0,
178 .urgent_latency_pixel_data_only_us = 4.0,
179 .urgent_latency_pixel_mixed_with_vm_data_us = 4.0,
180 .urgent_latency_vm_data_only_us = 4.0,
181 .urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096,
182 .urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096,
183 .urgent_out_of_order_return_per_channel_vm_only_bytes = 4096,
184 .pct_ideal_dram_sdp_bw_after_urgent_pixel_only = 80.0,
185 .pct_ideal_dram_sdp_bw_after_urgent_pixel_and_vm = 75.0,
186 .pct_ideal_dram_sdp_bw_after_urgent_vm_only = 40.0,
187 .max_avg_sdp_bw_use_normal_percent = 60.0,
188 .max_avg_dram_bw_use_normal_percent = 60.0,
189 .writeback_latency_us = 12.0,
190 .max_request_size_bytes = 256,
191 .dram_channel_width_bytes = 4,
192 .fabric_datapath_to_dcn_data_return_bytes = 32,
193 .dcn_downspread_percent = 0.5,
194 .downspread_percent = 0.38,
195 .dram_page_open_time_ns = 50.0,
196 .dram_rw_turnaround_time_ns = 17.5,
197 .dram_return_buffer_per_channel_bytes = 8192,
198 .round_trip_ping_latency_dcfclk_cycles = 191,
199 .urgent_out_of_order_return_per_channel_bytes = 4096,
200 .channel_interleave_bytes = 256,
201 .num_banks = 8,
202 .num_chans = 4,
203 .gpuvm_min_page_size_bytes = 4096,
204 .hostvm_min_page_size_bytes = 4096,
205 .dram_clock_change_latency_us = 23.84,
206 .writeback_dram_clock_change_latency_us = 23.0,
207 .return_bus_width_bytes = 64,
208 .dispclk_dppclk_vco_speed_mhz = 3550,
209 .xfc_bus_transport_time_us = 20, // ?
210 .xfc_xbuf_latency_tolerance_us = 4, // ?
211 .use_urgent_burst_bw = 1, // ?
212 .num_states = 5,
213 .do_urgent_latency_adjustment = false,
214 .urgent_latency_adjustment_fabric_clock_component_us = 0,
215 .urgent_latency_adjustment_fabric_clock_reference_mhz = 0,
216};
217
218struct wm_table ddr4_wm_table = {
219 .entries = {
220 {
221 .wm_inst = WM_A,
222 .wm_type = WM_TYPE_PSTATE_CHG,
223 .pstate_latency_us = 11.72,
224 .sr_exit_time_us = 6.09,
225 .sr_enter_plus_exit_time_us = 7.14,
226 .valid = true,
227 },
228 {
229 .wm_inst = WM_B,
230 .wm_type = WM_TYPE_PSTATE_CHG,
231 .pstate_latency_us = 11.72,
232 .sr_exit_time_us = 10.12,
233 .sr_enter_plus_exit_time_us = 11.48,
234 .valid = true,
235 },
236 {
237 .wm_inst = WM_C,
238 .wm_type = WM_TYPE_PSTATE_CHG,
239 .pstate_latency_us = 11.72,
240 .sr_exit_time_us = 10.12,
241 .sr_enter_plus_exit_time_us = 11.48,
242 .valid = true,
243 },
244 {
245 .wm_inst = WM_D,
246 .wm_type = WM_TYPE_PSTATE_CHG,
247 .pstate_latency_us = 11.72,
248 .sr_exit_time_us = 10.12,
249 .sr_enter_plus_exit_time_us = 11.48,
250 .valid = true,
251 },
252 }
253};
254
255struct wm_table lpddr5_wm_table = {
256 .entries = {
257 {
258 .wm_inst = WM_A,
259 .wm_type = WM_TYPE_PSTATE_CHG,
260 .pstate_latency_us = 11.65333,
261 .sr_exit_time_us = 13.5,
262 .sr_enter_plus_exit_time_us = 16.5,
263 .valid = true,
264 },
265 {
266 .wm_inst = WM_B,
267 .wm_type = WM_TYPE_PSTATE_CHG,
268 .pstate_latency_us = 11.65333,
269 .sr_exit_time_us = 13.5,
270 .sr_enter_plus_exit_time_us = 16.5,
271 .valid = true,
272 },
273 {
274 .wm_inst = WM_C,
275 .wm_type = WM_TYPE_PSTATE_CHG,
276 .pstate_latency_us = 11.65333,
277 .sr_exit_time_us = 13.5,
278 .sr_enter_plus_exit_time_us = 16.5,
279 .valid = true,
280 },
281 {
282 .wm_inst = WM_D,
283 .wm_type = WM_TYPE_PSTATE_CHG,
284 .pstate_latency_us = 11.65333,
285 .sr_exit_time_us = 13.5,
286 .sr_enter_plus_exit_time_us = 16.5,
287 .valid = true,
288 },
289 }
290};
291
292static void calculate_wm_set_for_vlevel(int vlevel,
293 struct wm_range_table_entry *table_entry,
294 struct dcn_watermarks *wm_set,
295 struct display_mode_lib *dml,
296 display_e2e_pipe_params_st *pipes,
297 int pipe_cnt)
298{
299 double dram_clock_change_latency_cached = dml->soc.dram_clock_change_latency_us;
300
301 ASSERT(vlevel < dml->soc.num_states);
302 /* only pipe 0 is read for voltage and dcf/soc clocks */
303 pipes[0].clks_cfg.voltage = vlevel;
304 pipes[0].clks_cfg.dcfclk_mhz = dml->soc.clock_limits[vlevel].dcfclk_mhz;
305 pipes[0].clks_cfg.socclk_mhz = dml->soc.clock_limits[vlevel].socclk_mhz;
306
307 dml->soc.dram_clock_change_latency_us = table_entry->pstate_latency_us;
308 dml->soc.sr_exit_time_us = table_entry->sr_exit_time_us;
309 dml->soc.sr_enter_plus_exit_time_us = table_entry->sr_enter_plus_exit_time_us;
310
311 wm_set->urgent_ns = get_wm_urgent(mode_lib: dml, pipes, num_pipes: pipe_cnt) * 1000;
312 wm_set->cstate_pstate.cstate_enter_plus_exit_ns = get_wm_stutter_enter_exit(mode_lib: dml, pipes, num_pipes: pipe_cnt) * 1000;
313 wm_set->cstate_pstate.cstate_exit_ns = get_wm_stutter_exit(mode_lib: dml, pipes, num_pipes: pipe_cnt) * 1000;
314 wm_set->cstate_pstate.pstate_change_ns = get_wm_dram_clock_change(mode_lib: dml, pipes, num_pipes: pipe_cnt) * 1000;
315 wm_set->pte_meta_urgent_ns = get_wm_memory_trip(mode_lib: dml, pipes, num_pipes: pipe_cnt) * 1000;
316 wm_set->frac_urg_bw_nom = get_fraction_of_urgent_bandwidth(mode_lib: dml, pipes, num_pipes: pipe_cnt) * 1000;
317 wm_set->frac_urg_bw_flip = get_fraction_of_urgent_bandwidth_imm_flip(mode_lib: dml, pipes, num_pipes: pipe_cnt) * 1000;
318 wm_set->urgent_latency_ns = get_urgent_latency(mode_lib: dml, pipes, num_pipes: pipe_cnt) * 1000;
319 dml->soc.dram_clock_change_latency_us = dram_clock_change_latency_cached;
320
321}
322
323void dcn301_update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_params)
324{
325 struct _vcs_dpi_voltage_scaling_st *s = dc->scratch.update_bw_bounding_box.clock_limits;
326 struct dcn301_resource_pool *pool = TO_DCN301_RES_POOL(dc->res_pool);
327 struct clk_limit_table *clk_table = &bw_params->clk_table;
328 unsigned int i, closest_clk_lvl;
329 int j;
330
331 dc_assert_fp_enabled();
332
333 memcpy(s, dcn3_01_soc.clock_limits, sizeof(dcn3_01_soc.clock_limits));
334
335 /* Default clock levels are used for diags, which may lead to overclocking. */
336 dcn3_01_ip.max_num_otg = pool->base.res_cap->num_timing_generator;
337 dcn3_01_ip.max_num_dpp = pool->base.pipe_count;
338 dcn3_01_soc.num_chans = bw_params->num_channels;
339
340 ASSERT(clk_table->num_entries);
341 for (i = 0; i < clk_table->num_entries; i++) {
342 /* loop backwards*/
343 for (closest_clk_lvl = 0, j = dcn3_01_soc.num_states - 1; j >= 0; j--) {
344 if ((unsigned int) dcn3_01_soc.clock_limits[j].dcfclk_mhz <= clk_table->entries[i].dcfclk_mhz) {
345 closest_clk_lvl = j;
346 break;
347 }
348 }
349
350 s[i].state = i;
351 s[i].dcfclk_mhz = clk_table->entries[i].dcfclk_mhz;
352 s[i].fabricclk_mhz = clk_table->entries[i].fclk_mhz;
353 s[i].socclk_mhz = clk_table->entries[i].socclk_mhz;
354 s[i].dram_speed_mts = clk_table->entries[i].memclk_mhz * 2;
355
356 s[i].dispclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dispclk_mhz;
357 s[i].dppclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dppclk_mhz;
358 s[i].dram_bw_per_chan_gbps =
359 dcn3_01_soc.clock_limits[closest_clk_lvl].dram_bw_per_chan_gbps;
360 s[i].dscclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dscclk_mhz;
361 s[i].dtbclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].dtbclk_mhz;
362 s[i].phyclk_d18_mhz =
363 dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_d18_mhz;
364 s[i].phyclk_mhz = dcn3_01_soc.clock_limits[closest_clk_lvl].phyclk_mhz;
365 }
366
367 if (clk_table->num_entries) {
368 dcn3_01_soc.num_states = clk_table->num_entries;
369 /* duplicate last level */
370 s[dcn3_01_soc.num_states] =
371 dcn3_01_soc.clock_limits[dcn3_01_soc.num_states - 1];
372 s[dcn3_01_soc.num_states].state = dcn3_01_soc.num_states;
373 }
374
375 memcpy(dcn3_01_soc.clock_limits, s, sizeof(dcn3_01_soc.clock_limits));
376
377 dcn3_01_soc.dispclk_dppclk_vco_speed_mhz = dc->clk_mgr->dentist_vco_freq_khz / 1000.0;
378 dc->dml.soc.dispclk_dppclk_vco_speed_mhz = dc->clk_mgr->dentist_vco_freq_khz / 1000.0;
379
380 if ((int)(dcn3_01_soc.dram_clock_change_latency_us * 1000)
381 != dc->debug.dram_clock_change_latency_ns
382 && dc->debug.dram_clock_change_latency_ns) {
383 dcn3_01_soc.dram_clock_change_latency_us = dc->debug.dram_clock_change_latency_ns / 1000.0;
384 }
385 dml_init_instance(lib: &dc->dml, soc_bb: &dcn3_01_soc, ip_params: &dcn3_01_ip, project: DML_PROJECT_DCN30);
386}
387
388void dcn301_fpu_set_wm_ranges(int i,
389 struct pp_smu_wm_range_sets *ranges,
390 struct _vcs_dpi_soc_bounding_box_st *loaded_bb)
391{
392 dc_assert_fp_enabled();
393
394 ranges->reader_wm_sets[i].min_fill_clk_mhz = (i > 0) ? (loaded_bb->clock_limits[i - 1].dram_speed_mts / 16) + 1 : 0;
395 ranges->reader_wm_sets[i].max_fill_clk_mhz = loaded_bb->clock_limits[i].dram_speed_mts / 16;
396}
397
398void dcn301_fpu_init_soc_bounding_box(struct bp_soc_bb_info bb_info)
399{
400 dc_assert_fp_enabled();
401
402 if (bb_info.dram_clock_change_latency_100ns > 0)
403 dcn3_01_soc.dram_clock_change_latency_us = bb_info.dram_clock_change_latency_100ns * 10;
404
405 if (bb_info.dram_sr_enter_exit_latency_100ns > 0)
406 dcn3_01_soc.sr_enter_plus_exit_time_us = bb_info.dram_sr_enter_exit_latency_100ns * 10;
407
408 if (bb_info.dram_sr_exit_latency_100ns > 0)
409 dcn3_01_soc.sr_exit_time_us = bb_info.dram_sr_exit_latency_100ns * 10;
410}
411
412void dcn301_calculate_wm_and_dlg_fp(struct dc *dc,
413 struct dc_state *context,
414 display_e2e_pipe_params_st *pipes,
415 int pipe_cnt,
416 int vlevel_req)
417{
418 int i, pipe_idx;
419 int vlevel, vlevel_max;
420 struct wm_range_table_entry *table_entry;
421 struct clk_bw_params *bw_params = dc->clk_mgr->bw_params;
422
423 ASSERT(bw_params);
424 dc_assert_fp_enabled();
425
426 vlevel_max = bw_params->clk_table.num_entries - 1;
427
428 /* WM Set D */
429 table_entry = &bw_params->wm_table.entries[WM_D];
430 if (table_entry->wm_type == WM_TYPE_RETRAINING)
431 vlevel = 0;
432 else
433 vlevel = vlevel_max;
434 calculate_wm_set_for_vlevel(vlevel, table_entry, wm_set: &context->bw_ctx.bw.dcn.watermarks.d,
435 dml: &context->bw_ctx.dml, pipes, pipe_cnt);
436 /* WM Set C */
437 table_entry = &bw_params->wm_table.entries[WM_C];
438 vlevel = min(max(vlevel_req, 2), vlevel_max);
439 calculate_wm_set_for_vlevel(vlevel, table_entry, wm_set: &context->bw_ctx.bw.dcn.watermarks.c,
440 dml: &context->bw_ctx.dml, pipes, pipe_cnt);
441 /* WM Set B */
442 table_entry = &bw_params->wm_table.entries[WM_B];
443 vlevel = min(max(vlevel_req, 1), vlevel_max);
444 calculate_wm_set_for_vlevel(vlevel, table_entry, wm_set: &context->bw_ctx.bw.dcn.watermarks.b,
445 dml: &context->bw_ctx.dml, pipes, pipe_cnt);
446
447 /* WM Set A */
448 table_entry = &bw_params->wm_table.entries[WM_A];
449 vlevel = min(vlevel_req, vlevel_max);
450 calculate_wm_set_for_vlevel(vlevel, table_entry, wm_set: &context->bw_ctx.bw.dcn.watermarks.a,
451 dml: &context->bw_ctx.dml, pipes, pipe_cnt);
452
453 for (i = 0, pipe_idx = 0; i < dc->res_pool->pipe_count; i++) {
454 if (!context->res_ctx.pipe_ctx[i].stream)
455 continue;
456
457 pipes[pipe_idx].clks_cfg.dispclk_mhz = get_dispclk_calculated(mode_lib: &context->bw_ctx.dml, pipes, num_pipes: pipe_cnt);
458 pipes[pipe_idx].clks_cfg.dppclk_mhz = get_dppclk_calculated(mode_lib: &context->bw_ctx.dml, pipes, num_pipes: pipe_cnt, which_pipe: pipe_idx);
459
460 if (dc->config.forced_clocks) {
461 pipes[pipe_idx].clks_cfg.dispclk_mhz = context->bw_ctx.dml.soc.clock_limits[0].dispclk_mhz;
462 pipes[pipe_idx].clks_cfg.dppclk_mhz = context->bw_ctx.dml.soc.clock_limits[0].dppclk_mhz;
463 }
464 if (dc->debug.min_disp_clk_khz > pipes[pipe_idx].clks_cfg.dispclk_mhz * 1000)
465 pipes[pipe_idx].clks_cfg.dispclk_mhz = dc->debug.min_disp_clk_khz / 1000.0;
466 if (dc->debug.min_dpp_clk_khz > pipes[pipe_idx].clks_cfg.dppclk_mhz * 1000)
467 pipes[pipe_idx].clks_cfg.dppclk_mhz = dc->debug.min_dpp_clk_khz / 1000.0;
468 pipe_idx++;
469 }
470
471 dcn20_calculate_dlg_params(dc, context, pipes, pipe_cnt, vlevel);
472}
473

source code of linux/drivers/gpu/drm/amd/display/dc/dml/dcn301/dcn301_fpu.c