drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c

   1 /*
   2  * Copyright 2015 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 <linux/string.h>
  27 #include <linux/acpi.h>
  28
  29 #include <drm/drmP.h>
  30 #include <drm/drm_crtc_helper.h>
  31 #include <drm/amdgpu_drm.h>
  32 #include "dm_services.h"
  33 #include "amdgpu.h"
  34 #include "amdgpu_dm.h"
  35 #include "amdgpu_dm_irq.h"
  36 #include "amdgpu_pm.h"
  37
  38 unsigned long long dm_get_timestamp(struct dc_context *ctx)
  39 {
  40         struct timespec64 time;
  41
  42         getrawmonotonic64(&time);
  43         return timespec64_to_ns(&time);
  44 }
  45
  46 unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx,
  47                 unsigned long long current_time_stamp,
  48                 unsigned long long last_time_stamp)
  49 {
  50         return current_time_stamp - last_time_stamp;
  51 }
  52
  53 void dm_perf_trace_timestamp(const char *func_name, unsigned int line)
  54 {
  55 }
  56
  57 bool dm_write_persistent_data(struct dc_context *ctx,
  58                 const struct dc_sink *sink,
  59                 const char *module_name,
  60                 const char *key_name,
  61                 void *params,
  62                 unsigned int size,
  63                 struct persistent_data_flag *flag)
  64 {
  65         /*TODO implement*/
  66         return false;
  67 }
  68
  69 bool dm_read_persistent_data(struct dc_context *ctx,
  70                                 const struct dc_sink *sink,
  71                                 const char *module_name,
  72                                 const char *key_name,
  73                                 void *params,
  74                                 unsigned int size,
  75                                 struct persistent_data_flag *flag)
  76 {
  77         /*TODO implement*/
  78         return false;
  79 }
  80
  81 /**** power component interfaces ****/
  82
  83 bool dm_pp_apply_display_requirements(
  84                 const struct dc_context *ctx,
  85                 const struct dm_pp_display_configuration *pp_display_cfg)
  86 {
  87         struct amdgpu_device *adev = ctx->driver_context;
  88
  89         if (adev->pm.dpm_enabled) {
  90
  91                 memset(&adev->pm.pm_display_cfg, 0,
  92                                 sizeof(adev->pm.pm_display_cfg));
  93
  94                 adev->pm.pm_display_cfg.cpu_cc6_disable =
  95                         pp_display_cfg->cpu_cc6_disable;
  96
  97                 adev->pm.pm_display_cfg.cpu_pstate_disable =
  98                         pp_display_cfg->cpu_pstate_disable;
  99
 100                 adev->pm.pm_display_cfg.cpu_pstate_separation_time =
 101                         pp_display_cfg->cpu_pstate_separation_time;
 102
 103                 adev->pm.pm_display_cfg.nb_pstate_switch_disable =
 104                         pp_display_cfg->nb_pstate_switch_disable;
 105
 106                 adev->pm.pm_display_cfg.num_display =
 107                                 pp_display_cfg->display_count;
 108                 adev->pm.pm_display_cfg.num_path_including_non_display =
 109                                 pp_display_cfg->display_count;
 110
 111                 adev->pm.pm_display_cfg.min_core_set_clock =
 112                                 pp_display_cfg->min_engine_clock_khz/10;
 113                 adev->pm.pm_display_cfg.min_core_set_clock_in_sr =
 114                                 pp_display_cfg->min_engine_clock_deep_sleep_khz/10;
 115                 adev->pm.pm_display_cfg.min_mem_set_clock =
 116                                 pp_display_cfg->min_memory_clock_khz/10;
 117
 118                 adev->pm.pm_display_cfg.multi_monitor_in_sync =
 119                                 pp_display_cfg->all_displays_in_sync;
 120                 adev->pm.pm_display_cfg.min_vblank_time =
 121                                 pp_display_cfg->avail_mclk_switch_time_us;
 122
 123                 adev->pm.pm_display_cfg.display_clk =
 124                                 pp_display_cfg->disp_clk_khz/10;
 125
 126                 adev->pm.pm_display_cfg.dce_tolerable_mclk_in_active_latency =
 127                                 pp_display_cfg->avail_mclk_switch_time_in_disp_active_us;
 128
 129                 adev->pm.pm_display_cfg.crtc_index = pp_display_cfg->crtc_index;
 130                 adev->pm.pm_display_cfg.line_time_in_us =
 131                                 pp_display_cfg->line_time_in_us;
 132
 133                 adev->pm.pm_display_cfg.vrefresh = pp_display_cfg->disp_configs[0].v_refresh;
 134                 adev->pm.pm_display_cfg.crossfire_display_index = -1;
 135                 adev->pm.pm_display_cfg.min_bus_bandwidth = 0;
 136
 137                 /* TODO: complete implementation of
 138                  * pp_display_configuration_change().
 139                  * Follow example of:
 140                  * PHM_StoreDALConfigurationData - powerplay\hwmgr\hardwaremanager.c
 141                  * PP_IRI_DisplayConfigurationChange - powerplay\eventmgr\iri.c */
 142                 if (adev->powerplay.pp_funcs->display_configuration_change)
 143                         adev->powerplay.pp_funcs->display_configuration_change(
 144                                 adev->powerplay.pp_handle,
 145                                 &adev->pm.pm_display_cfg);
 146
 147                 /* TODO: replace by a separate call to 'apply display cfg'? */
 148                 amdgpu_pm_compute_clocks(adev);
 149         }
 150
 151         return true;
 152 }
 153
 154 static void get_default_clock_levels(
 155                 enum dm_pp_clock_type clk_type,
 156                 struct dm_pp_clock_levels *clks)
 157 {
 158         uint32_t disp_clks_in_khz[6] = {
 159                         300000, 400000, 496560, 626090, 685720, 757900 };
 160         uint32_t sclks_in_khz[6] = {
 161                         300000, 360000, 423530, 514290, 626090, 720000 };
 162         uint32_t mclks_in_khz[2] = { 333000, 800000 };
 163
 164         switch (clk_type) {
 165         case DM_PP_CLOCK_TYPE_DISPLAY_CLK:
 166                 clks->num_levels = 6;
 167                 memmove(clks->clocks_in_khz, disp_clks_in_khz,
 168                                 sizeof(disp_clks_in_khz));
 169                 break;
 170         case DM_PP_CLOCK_TYPE_ENGINE_CLK:
 171                 clks->num_levels = 6;
 172                 memmove(clks->clocks_in_khz, sclks_in_khz,
 173                                 sizeof(sclks_in_khz));
 174                 break;
 175         case DM_PP_CLOCK_TYPE_MEMORY_CLK:
 176                 clks->num_levels = 2;
 177                 memmove(clks->clocks_in_khz, mclks_in_khz,
 178                                 sizeof(mclks_in_khz));
 179                 break;
 180         default:
 181                 clks->num_levels = 0;
 182                 break;
 183         }
 184 }
 185
 186 static enum amd_pp_clock_type dc_to_pp_clock_type(
 187                 enum dm_pp_clock_type dm_pp_clk_type)
 188 {
 189         enum amd_pp_clock_type amd_pp_clk_type = 0;
 190
 191         switch (dm_pp_clk_type) {
 192         case DM_PP_CLOCK_TYPE_DISPLAY_CLK:
 193                 amd_pp_clk_type = amd_pp_disp_clock;
 194                 break;
 195         case DM_PP_CLOCK_TYPE_ENGINE_CLK:
 196                 amd_pp_clk_type = amd_pp_sys_clock;
 197                 break;
 198         case DM_PP_CLOCK_TYPE_MEMORY_CLK:
 199                 amd_pp_clk_type = amd_pp_mem_clock;
 200                 break;
 201         default:
 202                 DRM_ERROR("DM_PPLIB: invalid clock type: %d!\n",
 203                                 dm_pp_clk_type);
 204                 break;
 205         }
 206
 207         return amd_pp_clk_type;
 208 }
 209
 210 static void pp_to_dc_clock_levels(
 211                 const struct amd_pp_clocks *pp_clks,
 212                 struct dm_pp_clock_levels *dc_clks,
 213                 enum dm_pp_clock_type dc_clk_type)
 214 {
 215         uint32_t i;
 216
 217         if (pp_clks->count > DM_PP_MAX_CLOCK_LEVELS) {
 218                 DRM_INFO("DM_PPLIB: Warning: %s clock: number of levels %d exceeds maximum of %d!\n",
 219                                 DC_DECODE_PP_CLOCK_TYPE(dc_clk_type),
 220                                 pp_clks->count,
 221                                 DM_PP_MAX_CLOCK_LEVELS);
 222
 223                 dc_clks->num_levels = DM_PP_MAX_CLOCK_LEVELS;
 224         } else
 225                 dc_clks->num_levels = pp_clks->count;
 226
 227         DRM_INFO("DM_PPLIB: values for %s clock\n",
 228                         DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));
 229
 230         for (i = 0; i < dc_clks->num_levels; i++) {
 231                 DRM_INFO("DM_PPLIB:\t %d\n", pp_clks->clock[i]);
 232                 /* translate 10kHz to kHz */
 233                 dc_clks->clocks_in_khz[i] = pp_clks->clock[i] * 10;
 234         }
 235 }
 236
 237 bool dm_pp_get_clock_levels_by_type(
 238                 const struct dc_context *ctx,
 239                 enum dm_pp_clock_type clk_type,
 240                 struct dm_pp_clock_levels *dc_clks)
 241 {
 242         struct amdgpu_device *adev = ctx->driver_context;
 243         void *pp_handle = adev->powerplay.pp_handle;
 244         struct amd_pp_clocks pp_clks = { 0 };
 245         struct amd_pp_simple_clock_info validation_clks = { 0 };
 246         uint32_t i;
 247
 248         if (adev->powerplay.pp_funcs->get_clock_by_type) {
 249                 if (adev->powerplay.pp_funcs->get_clock_by_type(pp_handle,
 250                         dc_to_pp_clock_type(clk_type), &pp_clks)) {
 251                 /* Error in pplib. Provide default values. */
 252                         get_default_clock_levels(clk_type, dc_clks);
 253                         return true;
 254                 }
 255         }
 256
 257         pp_to_dc_clock_levels(&pp_clks, dc_clks, clk_type);
 258
 259         if (adev->powerplay.pp_funcs->get_display_mode_validation_clocks) {
 260                 if (adev->powerplay.pp_funcs->get_display_mode_validation_clocks(
 261                                                 pp_handle, &validation_clks)) {
 262                         /* Error in pplib. Provide default values. */
 263                         DRM_INFO("DM_PPLIB: Warning: using default validation clocks!\n");
 264                         validation_clks.engine_max_clock = 72000;
 265                         validation_clks.memory_max_clock = 80000;
 266                         validation_clks.level = 0;
 267                 }
 268         }
 269
 270         DRM_INFO("DM_PPLIB: Validation clocks:\n");
 271         DRM_INFO("DM_PPLIB:    engine_max_clock: %d\n",
 272                         validation_clks.engine_max_clock);
 273         DRM_INFO("DM_PPLIB:    memory_max_clock: %d\n",
 274                         validation_clks.memory_max_clock);
 275         DRM_INFO("DM_PPLIB:    level           : %d\n",
 276                         validation_clks.level);
 277
 278         /* Translate 10 kHz to kHz. */
 279         validation_clks.engine_max_clock *= 10;
 280         validation_clks.memory_max_clock *= 10;
 281
 282         /* Determine the highest non-boosted level from the Validation Clocks */
 283         if (clk_type == DM_PP_CLOCK_TYPE_ENGINE_CLK) {
 284                 for (i = 0; i < dc_clks->num_levels; i++) {
 285                         if (dc_clks->clocks_in_khz[i] > validation_clks.engine_max_clock) {
 286                                 /* This clock is higher the validation clock.
 287                                  * Than means the previous one is the highest
 288                                  * non-boosted one. */
 289                                 DRM_INFO("DM_PPLIB: reducing engine clock level from %d to %d\n",
 290                                                 dc_clks->num_levels, i);
 291                                 dc_clks->num_levels = i > 0 ? i : 1;
 292                                 break;
 293                         }
 294                 }
 295         } else if (clk_type == DM_PP_CLOCK_TYPE_MEMORY_CLK) {
 296                 for (i = 0; i < dc_clks->num_levels; i++) {
 297                         if (dc_clks->clocks_in_khz[i] > validation_clks.memory_max_clock) {
 298                                 DRM_INFO("DM_PPLIB: reducing memory clock level from %d to %d\n",
 299                                                 dc_clks->num_levels, i);
 300                                 dc_clks->num_levels = i > 0 ? i : 1;
 301                                 break;
 302                         }
 303                 }
 304         }
 305
 306         return true;
 307 }
 308
 309 bool dm_pp_get_clock_levels_by_type_with_latency(
 310         const struct dc_context *ctx,
 311         enum dm_pp_clock_type clk_type,
 312         struct dm_pp_clock_levels_with_latency *clk_level_info)
 313 {
 314         /* TODO: to be implemented */
 315         return false;
 316 }
 317
 318 bool dm_pp_get_clock_levels_by_type_with_voltage(
 319         const struct dc_context *ctx,
 320         enum dm_pp_clock_type clk_type,
 321         struct dm_pp_clock_levels_with_voltage *clk_level_info)
 322 {
 323         /* TODO: to be implemented */
 324         return false;
 325 }
 326
 327 bool dm_pp_notify_wm_clock_changes(
 328         const struct dc_context *ctx,
 329         struct dm_pp_wm_sets_with_clock_ranges *wm_with_clock_ranges)
 330 {
 331         /* TODO: to be implemented */
 332         return false;
 333 }
 334
 335 bool dm_pp_apply_power_level_change_request(
 336         const struct dc_context *ctx,
 337         struct dm_pp_power_level_change_request *level_change_req)
 338 {
 339         /* TODO: to be implemented */
 340         return false;
 341 }
 342
 343 bool dm_pp_apply_clock_for_voltage_request(
 344         const struct dc_context *ctx,
 345         struct dm_pp_clock_for_voltage_req *clock_for_voltage_req)
 346 {
 347         /* TODO: to be implemented */
 348         return false;
 349 }
 350
 351 bool dm_pp_get_static_clocks(
 352         const struct dc_context *ctx,
 353         struct dm_pp_static_clock_info *static_clk_info)
 354 {
 355         /* TODO: to be implemented */
 356         return false;
 357 }
 358
 359 void dm_pp_get_funcs_rv(
 360                 struct dc_context *ctx,
 361                 struct pp_smu_funcs_rv *funcs)
 362 {}
 363
 364 /**** end of power component interfaces ****/