drivers/gpu/drm/i915/intel_device_info.c

   1 /*
   2  * Copyright © 2016 Intel Corporation
   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #include <drm/drm_print.h>
  26 #include <drm/i915_pciids.h>
  27
  28 #include "display/intel_cdclk.h"
  29 #include "display/intel_de.h"
  30 #include "intel_device_info.h"
  31 #include "i915_drv.h"
  32
  33 #define PLATFORM_NAME(x) [INTEL_##x] = #x
  34 static const char * const platform_names[] = {
  35         PLATFORM_NAME(I830),
  36         PLATFORM_NAME(I845G),
  37         PLATFORM_NAME(I85X),
  38         PLATFORM_NAME(I865G),
  39         PLATFORM_NAME(I915G),
  40         PLATFORM_NAME(I915GM),
  41         PLATFORM_NAME(I945G),
  42         PLATFORM_NAME(I945GM),
  43         PLATFORM_NAME(G33),
  44         PLATFORM_NAME(PINEVIEW),
  45         PLATFORM_NAME(I965G),
  46         PLATFORM_NAME(I965GM),
  47         PLATFORM_NAME(G45),
  48         PLATFORM_NAME(GM45),
  49         PLATFORM_NAME(IRONLAKE),
  50         PLATFORM_NAME(SANDYBRIDGE),
  51         PLATFORM_NAME(IVYBRIDGE),
  52         PLATFORM_NAME(VALLEYVIEW),
  53         PLATFORM_NAME(HASWELL),
  54         PLATFORM_NAME(BROADWELL),
  55         PLATFORM_NAME(CHERRYVIEW),
  56         PLATFORM_NAME(SKYLAKE),
  57         PLATFORM_NAME(BROXTON),
  58         PLATFORM_NAME(KABYLAKE),
  59         PLATFORM_NAME(GEMINILAKE),
  60         PLATFORM_NAME(COFFEELAKE),
  61         PLATFORM_NAME(COMETLAKE),
  62         PLATFORM_NAME(CANNONLAKE),
  63         PLATFORM_NAME(ICELAKE),
  64         PLATFORM_NAME(ELKHARTLAKE),
  65         PLATFORM_NAME(TIGERLAKE),
  66         PLATFORM_NAME(ROCKETLAKE),
  67         PLATFORM_NAME(DG1),
  68 };
  69 #undef PLATFORM_NAME
  70
  71 const char *intel_platform_name(enum intel_platform platform)
  72 {
  73         BUILD_BUG_ON(ARRAY_SIZE(platform_names) != INTEL_MAX_PLATFORMS);
  74
  75         if (WARN_ON_ONCE(platform >= ARRAY_SIZE(platform_names) ||
  76                          platform_names[platform] == NULL))
  77                 return "<unknown>";
  78
  79         return platform_names[platform];
  80 }
  81
  82 static const char *iommu_name(void)
  83 {
  84         const char *msg = "n/a";
  85
  86 #ifdef CONFIG_INTEL_IOMMU
  87         msg = enableddisabled(intel_iommu_gfx_mapped);
  88 #endif
  89
  90         return msg;
  91 }
  92
  93 void intel_device_info_print_static(const struct intel_device_info *info,
  94                                     struct drm_printer *p)
  95 {
  96         drm_printf(p, "gen: %d\n", info->gen);
  97         drm_printf(p, "gt: %d\n", info->gt);
  98         drm_printf(p, "iommu: %s\n", iommu_name());
  99         drm_printf(p, "memory-regions: %x\n", info->memory_regions);
 100         drm_printf(p, "page-sizes: %x\n", info->page_sizes);
 101         drm_printf(p, "platform: %s\n", intel_platform_name(info->platform));
 102         drm_printf(p, "ppgtt-size: %d\n", info->ppgtt_size);
 103         drm_printf(p, "ppgtt-type: %d\n", info->ppgtt_type);
 104         drm_printf(p, "dma_mask_size: %u\n", info->dma_mask_size);
 105
 106 #define PRINT_FLAG(name) drm_printf(p, "%s: %s\n", #name, yesno(info->name));
 107         DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG);
 108 #undef PRINT_FLAG
 109
 110 #define PRINT_FLAG(name) drm_printf(p, "%s: %s\n", #name, yesno(info->display.name));
 111         DEV_INFO_DISPLAY_FOR_EACH_FLAG(PRINT_FLAG);
 112 #undef PRINT_FLAG
 113 }
 114
 115 void intel_device_info_print_runtime(const struct intel_runtime_info *info,
 116                                      struct drm_printer *p)
 117 {
 118         drm_printf(p, "rawclk rate: %u kHz\n", info->rawclk_freq);
 119         drm_printf(p, "CS timestamp frequency: %u Hz\n",
 120                    info->cs_timestamp_frequency_hz);
 121 }
 122
 123 static u32 read_reference_ts_freq(struct drm_i915_private *dev_priv)
 124 {
 125         u32 ts_override = intel_uncore_read(&dev_priv->uncore,
 126                                             GEN9_TIMESTAMP_OVERRIDE);
 127         u32 base_freq, frac_freq;
 128
 129         base_freq = ((ts_override & GEN9_TIMESTAMP_OVERRIDE_US_COUNTER_DIVIDER_MASK) >>
 130                      GEN9_TIMESTAMP_OVERRIDE_US_COUNTER_DIVIDER_SHIFT) + 1;
 131         base_freq *= 1000000;
 132
 133         frac_freq = ((ts_override &
 134                       GEN9_TIMESTAMP_OVERRIDE_US_COUNTER_DENOMINATOR_MASK) >>
 135                      GEN9_TIMESTAMP_OVERRIDE_US_COUNTER_DENOMINATOR_SHIFT);
 136         frac_freq = 1000000 / (frac_freq + 1);
 137
 138         return base_freq + frac_freq;
 139 }
 140
 141 static u32 gen10_get_crystal_clock_freq(struct drm_i915_private *dev_priv,
 142                                         u32 rpm_config_reg)
 143 {
 144         u32 f19_2_mhz = 19200000;
 145         u32 f24_mhz = 24000000;
 146         u32 crystal_clock = (rpm_config_reg &
 147                              GEN9_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_MASK) >>
 148                             GEN9_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_SHIFT;
 149
 150         switch (crystal_clock) {
 151         case GEN9_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_19_2_MHZ:
 152                 return f19_2_mhz;
 153         case GEN9_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_24_MHZ:
 154                 return f24_mhz;
 155         default:
 156                 MISSING_CASE(crystal_clock);
 157                 return 0;
 158         }
 159 }
 160
 161 static u32 gen11_get_crystal_clock_freq(struct drm_i915_private *dev_priv,
 162                                         u32 rpm_config_reg)
 163 {
 164         u32 f19_2_mhz = 19200000;
 165         u32 f24_mhz = 24000000;
 166         u32 f25_mhz = 25000000;
 167         u32 f38_4_mhz = 38400000;
 168         u32 crystal_clock = (rpm_config_reg &
 169                              GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_MASK) >>
 170                             GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_SHIFT;
 171
 172         switch (crystal_clock) {
 173         case GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_24_MHZ:
 174                 return f24_mhz;
 175         case GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_19_2_MHZ:
 176                 return f19_2_mhz;
 177         case GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_38_4_MHZ:
 178                 return f38_4_mhz;
 179         case GEN11_RPM_CONFIG0_CRYSTAL_CLOCK_FREQ_25_MHZ:
 180                 return f25_mhz;
 181         default:
 182                 MISSING_CASE(crystal_clock);
 183                 return 0;
 184         }
 185 }
 186
 187 static u32 read_timestamp_frequency(struct drm_i915_private *dev_priv)
 188 {
 189         struct intel_uncore *uncore = &dev_priv->uncore;
 190         u32 f12_5_mhz = 12500000;
 191         u32 f19_2_mhz = 19200000;
 192         u32 f24_mhz = 24000000;
 193
 194         if (INTEL_GEN(dev_priv) <= 4) {
 195                 /* PRMs say:
 196                  *
 197                  *     "The value in this register increments once every 16
 198                  *      hclks." (through the “Clocking Configuration”
 199                  *      (“CLKCFG”) MCHBAR register)
 200                  */
 201                 return RUNTIME_INFO(dev_priv)->rawclk_freq * 1000 / 16;
 202         } else if (INTEL_GEN(dev_priv) <= 8) {
 203                 /* PRMs say:
 204                  *
 205                  *     "The PCU TSC counts 10ns increments; this timestamp
 206                  *      reflects bits 38:3 of the TSC (i.e. 80ns granularity,
 207                  *      rolling over every 1.5 hours).
 208                  */
 209                 return f12_5_mhz;
 210         } else if (INTEL_GEN(dev_priv) <= 9) {
 211                 u32 ctc_reg = intel_uncore_read(uncore, CTC_MODE);
 212                 u32 freq = 0;
 213
 214                 if ((ctc_reg & CTC_SOURCE_PARAMETER_MASK) == CTC_SOURCE_DIVIDE_LOGIC) {
 215                         freq = read_reference_ts_freq(dev_priv);
 216                 } else {
 217                         freq = IS_GEN9_LP(dev_priv) ? f19_2_mhz : f24_mhz;
 218
 219                         /* Now figure out how the command stream's timestamp
 220                          * register increments from this frequency (it might
 221                          * increment only every few clock cycle).
 222                          */
 223                         freq >>= 3 - ((ctc_reg & CTC_SHIFT_PARAMETER_MASK) >>
 224                                       CTC_SHIFT_PARAMETER_SHIFT);
 225                 }
 226
 227                 return freq;
 228         } else if (INTEL_GEN(dev_priv) <= 12) {
 229                 u32 ctc_reg = intel_uncore_read(uncore, CTC_MODE);
 230                 u32 freq = 0;
 231
 232                 /* First figure out the reference frequency. There are 2 ways
 233                  * we can compute the frequency, either through the
 234                  * TIMESTAMP_OVERRIDE register or through RPM_CONFIG. CTC_MODE
 235                  * tells us which one we should use.
 236                  */
 237                 if ((ctc_reg & CTC_SOURCE_PARAMETER_MASK) == CTC_SOURCE_DIVIDE_LOGIC) {
 238                         freq = read_reference_ts_freq(dev_priv);
 239                 } else {
 240                         u32 rpm_config_reg = intel_uncore_read(uncore, RPM_CONFIG0);
 241
 242                         if (INTEL_GEN(dev_priv) <= 10)
 243                                 freq = gen10_get_crystal_clock_freq(dev_priv,
 244                                                                 rpm_config_reg);
 245                         else
 246                                 freq = gen11_get_crystal_clock_freq(dev_priv,
 247                                                                 rpm_config_reg);
 248
 249                         /* Now figure out how the command stream's timestamp
 250                          * register increments from this frequency (it might
 251                          * increment only every few clock cycle).
 252                          */
 253                         freq >>= 3 - ((rpm_config_reg &
 254                                        GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_MASK) >>
 255                                       GEN10_RPM_CONFIG0_CTC_SHIFT_PARAMETER_SHIFT);
 256                 }
 257
 258                 return freq;
 259         }
 260
 261         MISSING_CASE("Unknown gen, unable to read command streamer timestamp frequency\n");
 262         return 0;
 263 }
 264
 265 #undef INTEL_VGA_DEVICE
 266 #define INTEL_VGA_DEVICE(id, info) (id)
 267
 268 static const u16 subplatform_ult_ids[] = {
 269         INTEL_HSW_ULT_GT1_IDS(0),
 270         INTEL_HSW_ULT_GT2_IDS(0),
 271         INTEL_HSW_ULT_GT3_IDS(0),
 272         INTEL_BDW_ULT_GT1_IDS(0),
 273         INTEL_BDW_ULT_GT2_IDS(0),
 274         INTEL_BDW_ULT_GT3_IDS(0),
 275         INTEL_BDW_ULT_RSVD_IDS(0),
 276         INTEL_SKL_ULT_GT1_IDS(0),
 277         INTEL_SKL_ULT_GT2_IDS(0),
 278         INTEL_SKL_ULT_GT3_IDS(0),
 279         INTEL_KBL_ULT_GT1_IDS(0),
 280         INTEL_KBL_ULT_GT2_IDS(0),
 281         INTEL_KBL_ULT_GT3_IDS(0),
 282         INTEL_CFL_U_GT2_IDS(0),
 283         INTEL_CFL_U_GT3_IDS(0),
 284         INTEL_WHL_U_GT1_IDS(0),
 285         INTEL_WHL_U_GT2_IDS(0),
 286         INTEL_WHL_U_GT3_IDS(0),
 287         INTEL_CML_U_GT1_IDS(0),
 288         INTEL_CML_U_GT2_IDS(0),
 289 };
 290
 291 static const u16 subplatform_ulx_ids[] = {
 292         INTEL_HSW_ULX_GT1_IDS(0),
 293         INTEL_HSW_ULX_GT2_IDS(0),
 294         INTEL_BDW_ULX_GT1_IDS(0),
 295         INTEL_BDW_ULX_GT2_IDS(0),
 296         INTEL_BDW_ULX_GT3_IDS(0),
 297         INTEL_BDW_ULX_RSVD_IDS(0),
 298         INTEL_SKL_ULX_GT1_IDS(0),
 299         INTEL_SKL_ULX_GT2_IDS(0),
 300         INTEL_KBL_ULX_GT1_IDS(0),
 301         INTEL_KBL_ULX_GT2_IDS(0),
 302         INTEL_AML_KBL_GT2_IDS(0),
 303         INTEL_AML_CFL_GT2_IDS(0),
 304 };
 305
 306 static const u16 subplatform_portf_ids[] = {
 307         INTEL_CNL_PORT_F_IDS(0),
 308         INTEL_ICL_PORT_F_IDS(0),
 309 };
 310
 311 static bool find_devid(u16 id, const u16 *p, unsigned int num)
 312 {
 313         for (; num; num--, p++) {
 314                 if (*p == id)
 315                         return true;
 316         }
 317
 318         return false;
 319 }
 320
 321 void intel_device_info_subplatform_init(struct drm_i915_private *i915)
 322 {
 323         const struct intel_device_info *info = INTEL_INFO(i915);
 324         const struct intel_runtime_info *rinfo = RUNTIME_INFO(i915);
 325         const unsigned int pi = __platform_mask_index(rinfo, info->platform);
 326         const unsigned int pb = __platform_mask_bit(rinfo, info->platform);
 327         u16 devid = INTEL_DEVID(i915);
 328         u32 mask = 0;
 329
 330         /* Make sure IS_<platform> checks are working. */
 331         RUNTIME_INFO(i915)->platform_mask[pi] = BIT(pb);
 332
 333         /* Find and mark subplatform bits based on the PCI device id. */
 334         if (find_devid(devid, subplatform_ult_ids,
 335                        ARRAY_SIZE(subplatform_ult_ids))) {
 336                 mask = BIT(INTEL_SUBPLATFORM_ULT);
 337         } else if (find_devid(devid, subplatform_ulx_ids,
 338                               ARRAY_SIZE(subplatform_ulx_ids))) {
 339                 mask = BIT(INTEL_SUBPLATFORM_ULX);
 340                 if (IS_HASWELL(i915) || IS_BROADWELL(i915)) {
 341                         /* ULX machines are also considered ULT. */
 342                         mask |= BIT(INTEL_SUBPLATFORM_ULT);
 343                 }
 344         } else if (find_devid(devid, subplatform_portf_ids,
 345                               ARRAY_SIZE(subplatform_portf_ids))) {
 346                 mask = BIT(INTEL_SUBPLATFORM_PORTF);
 347         }
 348
 349         GEM_BUG_ON(mask & ~INTEL_SUBPLATFORM_BITS);
 350
 351         RUNTIME_INFO(i915)->platform_mask[pi] |= mask;
 352 }
 353
 354 /**
 355  * intel_device_info_runtime_init - initialize runtime info
 356  * @dev_priv: the i915 device
 357  *
 358  * Determine various intel_device_info fields at runtime.
 359  *
 360  * Use it when either:
 361  *   - it's judged too laborious to fill n static structures with the limit
 362  *     when a simple if statement does the job,
 363  *   - run-time checks (eg read fuse/strap registers) are needed.
 364  *
 365  * This function needs to be called:
 366  *   - after the MMIO has been setup as we are reading registers,
 367  *   - after the PCH has been detected,
 368  *   - before the first usage of the fields it can tweak.
 369  */
 370 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
 371 {
 372         struct intel_device_info *info = mkwrite_device_info(dev_priv);
 373         struct intel_runtime_info *runtime = RUNTIME_INFO(dev_priv);
 374         enum pipe pipe;
 375
 376         if (INTEL_GEN(dev_priv) >= 10) {
 377                 for_each_pipe(dev_priv, pipe)
 378                         runtime->num_scalers[pipe] = 2;
 379         } else if (IS_GEN(dev_priv, 9)) {
 380                 runtime->num_scalers[PIPE_A] = 2;
 381                 runtime->num_scalers[PIPE_B] = 2;
 382                 runtime->num_scalers[PIPE_C] = 1;
 383         }
 384
 385         BUILD_BUG_ON(BITS_PER_TYPE(intel_engine_mask_t) < I915_NUM_ENGINES);
 386
 387         if (IS_ROCKETLAKE(dev_priv))
 388                 for_each_pipe(dev_priv, pipe)
 389                         runtime->num_sprites[pipe] = 4;
 390         else if (INTEL_GEN(dev_priv) >= 11)
 391                 for_each_pipe(dev_priv, pipe)
 392                         runtime->num_sprites[pipe] = 6;
 393         else if (IS_GEN(dev_priv, 10) || IS_GEMINILAKE(dev_priv))
 394                 for_each_pipe(dev_priv, pipe)
 395                         runtime->num_sprites[pipe] = 3;
 396         else if (IS_BROXTON(dev_priv)) {
 397                 /*
 398                  * Skylake and Broxton currently don't expose the topmost plane as its
 399                  * use is exclusive with the legacy cursor and we only want to expose
 400                  * one of those, not both. Until we can safely expose the topmost plane
 401                  * as a DRM_PLANE_TYPE_CURSOR with all the features exposed/supported,
 402                  * we don't expose the topmost plane at all to prevent ABI breakage
 403                  * down the line.
 404                  */
 405
 406                 runtime->num_sprites[PIPE_A] = 2;
 407                 runtime->num_sprites[PIPE_B] = 2;
 408                 runtime->num_sprites[PIPE_C] = 1;
 409         } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
 410                 for_each_pipe(dev_priv, pipe)
 411                         runtime->num_sprites[pipe] = 2;
 412         } else if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv)) {
 413                 for_each_pipe(dev_priv, pipe)
 414                         runtime->num_sprites[pipe] = 1;
 415         }
 416
 417         if (HAS_DISPLAY(dev_priv) && IS_GEN_RANGE(dev_priv, 7, 8) &&
 418             HAS_PCH_SPLIT(dev_priv)) {
 419                 u32 fuse_strap = intel_de_read(dev_priv, FUSE_STRAP);
 420                 u32 sfuse_strap = intel_de_read(dev_priv, SFUSE_STRAP);
 421
 422                 /*
 423                  * SFUSE_STRAP is supposed to have a bit signalling the display
 424                  * is fused off. Unfortunately it seems that, at least in
 425                  * certain cases, fused off display means that PCH display
 426                  * reads don't land anywhere. In that case, we read 0s.
 427                  *
 428                  * On CPT/PPT, we can detect this case as SFUSE_STRAP_FUSE_LOCK
 429                  * should be set when taking over after the firmware.
 430                  */
 431                 if (fuse_strap & ILK_INTERNAL_DISPLAY_DISABLE ||
 432                     sfuse_strap & SFUSE_STRAP_DISPLAY_DISABLED ||
 433                     (HAS_PCH_CPT(dev_priv) &&
 434                      !(sfuse_strap & SFUSE_STRAP_FUSE_LOCK))) {
 435                         drm_info(&dev_priv->drm,
 436                                  "Display fused off, disabling\n");
 437                         info->pipe_mask = 0;
 438                         info->cpu_transcoder_mask = 0;
 439                 } else if (fuse_strap & IVB_PIPE_C_DISABLE) {
 440                         drm_info(&dev_priv->drm, "PipeC fused off\n");
 441                         info->pipe_mask &= ~BIT(PIPE_C);
 442                         info->cpu_transcoder_mask &= ~BIT(TRANSCODER_C);
 443                 }
 444         } else if (HAS_DISPLAY(dev_priv) && INTEL_GEN(dev_priv) >= 9) {
 445                 u32 dfsm = intel_de_read(dev_priv, SKL_DFSM);
 446
 447                 if (dfsm & SKL_DFSM_PIPE_A_DISABLE) {
 448                         info->pipe_mask &= ~BIT(PIPE_A);
 449                         info->cpu_transcoder_mask &= ~BIT(TRANSCODER_A);
 450                 }
 451                 if (dfsm & SKL_DFSM_PIPE_B_DISABLE) {
 452                         info->pipe_mask &= ~BIT(PIPE_B);
 453                         info->cpu_transcoder_mask &= ~BIT(TRANSCODER_B);
 454                 }
 455                 if (dfsm & SKL_DFSM_PIPE_C_DISABLE) {
 456                         info->pipe_mask &= ~BIT(PIPE_C);
 457                         info->cpu_transcoder_mask &= ~BIT(TRANSCODER_C);
 458                 }
 459                 if (INTEL_GEN(dev_priv) >= 12 &&
 460                     (dfsm & TGL_DFSM_PIPE_D_DISABLE)) {
 461                         info->pipe_mask &= ~BIT(PIPE_D);
 462                         info->cpu_transcoder_mask &= ~BIT(TRANSCODER_D);
 463                 }
 464
 465                 if (dfsm & SKL_DFSM_DISPLAY_HDCP_DISABLE)
 466                         info->display.has_hdcp = 0;
 467
 468                 if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE)
 469                         info->display.has_fbc = 0;
 470
 471                 if (INTEL_GEN(dev_priv) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE))
 472                         info->display.has_csr = 0;
 473
 474                 if (INTEL_GEN(dev_priv) >= 10 &&
 475                     (dfsm & CNL_DFSM_DISPLAY_DSC_DISABLE))
 476                         info->display.has_dsc = 0;
 477         }
 478
 479         if (IS_GEN(dev_priv, 6) && intel_vtd_active()) {
 480                 drm_info(&dev_priv->drm,
 481                          "Disabling ppGTT for VT-d support\n");
 482                 info->ppgtt_type = INTEL_PPGTT_NONE;
 483         }
 484
 485         runtime->rawclk_freq = intel_read_rawclk(dev_priv);
 486         drm_dbg(&dev_priv->drm, "rawclk rate: %d kHz\n", runtime->rawclk_freq);
 487
 488         /* Initialize command stream timestamp frequency */
 489         runtime->cs_timestamp_frequency_hz =
 490                 read_timestamp_frequency(dev_priv);
 491         if (runtime->cs_timestamp_frequency_hz) {
 492                 runtime->cs_timestamp_period_ns =
 493                         i915_cs_timestamp_ticks_to_ns(dev_priv, 1);
 494                 drm_dbg(&dev_priv->drm,
 495                         "CS timestamp wraparound in %lldms\n",
 496                         div_u64(mul_u32_u32(runtime->cs_timestamp_period_ns,
 497                                             S32_MAX),
 498                                 USEC_PER_SEC));
 499         }
 500 }
 501
 502 void intel_driver_caps_print(const struct intel_driver_caps *caps,
 503                              struct drm_printer *p)
 504 {
 505         drm_printf(p, "Has logical contexts? %s\n",
 506                    yesno(caps->has_logical_contexts));
 507         drm_printf(p, "scheduler: %x\n", caps->scheduler);
 508 }