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 <linux/string_helpers.h>
  26
  27 #include <drm/drm_print.h>
  28 #include <drm/i915_pciids.h>
  29
  30 #include "display/intel_cdclk.h"
  31 #include "display/intel_de.h"
  32 #include "intel_device_info.h"
  33 #include "i915_drv.h"
  34 #include "i915_utils.h"
  35
  36 #define PLATFORM_NAME(x) [INTEL_##x] = #x
  37 static const char * const platform_names[] = {
  38         PLATFORM_NAME(I830),
  39         PLATFORM_NAME(I845G),
  40         PLATFORM_NAME(I85X),
  41         PLATFORM_NAME(I865G),
  42         PLATFORM_NAME(I915G),
  43         PLATFORM_NAME(I915GM),
  44         PLATFORM_NAME(I945G),
  45         PLATFORM_NAME(I945GM),
  46         PLATFORM_NAME(G33),
  47         PLATFORM_NAME(PINEVIEW),
  48         PLATFORM_NAME(I965G),
  49         PLATFORM_NAME(I965GM),
  50         PLATFORM_NAME(G45),
  51         PLATFORM_NAME(GM45),
  52         PLATFORM_NAME(IRONLAKE),
  53         PLATFORM_NAME(SANDYBRIDGE),
  54         PLATFORM_NAME(IVYBRIDGE),
  55         PLATFORM_NAME(VALLEYVIEW),
  56         PLATFORM_NAME(HASWELL),
  57         PLATFORM_NAME(BROADWELL),
  58         PLATFORM_NAME(CHERRYVIEW),
  59         PLATFORM_NAME(SKYLAKE),
  60         PLATFORM_NAME(BROXTON),
  61         PLATFORM_NAME(KABYLAKE),
  62         PLATFORM_NAME(GEMINILAKE),
  63         PLATFORM_NAME(COFFEELAKE),
  64         PLATFORM_NAME(COMETLAKE),
  65         PLATFORM_NAME(ICELAKE),
  66         PLATFORM_NAME(ELKHARTLAKE),
  67         PLATFORM_NAME(JASPERLAKE),
  68         PLATFORM_NAME(TIGERLAKE),
  69         PLATFORM_NAME(ROCKETLAKE),
  70         PLATFORM_NAME(DG1),
  71         PLATFORM_NAME(ALDERLAKE_S),
  72         PLATFORM_NAME(ALDERLAKE_P),
  73         PLATFORM_NAME(XEHPSDV),
  74         PLATFORM_NAME(DG2),
  75         PLATFORM_NAME(PONTEVECCHIO),
  76 };
  77 #undef PLATFORM_NAME
  78
  79 const char *intel_platform_name(enum intel_platform platform)
  80 {
  81         BUILD_BUG_ON(ARRAY_SIZE(platform_names) != INTEL_MAX_PLATFORMS);
  82
  83         if (WARN_ON_ONCE(platform >= ARRAY_SIZE(platform_names) ||
  84                          platform_names[platform] == NULL))
  85                 return "<unknown>";
  86
  87         return platform_names[platform];
  88 }
  89
  90 void intel_device_info_print_static(const struct intel_device_info *info,
  91                                     struct drm_printer *p)
  92 {
  93         if (info->graphics.rel)
  94                 drm_printf(p, "graphics version: %u.%02u\n", info->graphics.ver,
  95                            info->graphics.rel);
  96         else
  97                 drm_printf(p, "graphics version: %u\n", info->graphics.ver);
  98
  99         if (info->media.rel)
 100                 drm_printf(p, "media version: %u.%02u\n", info->media.ver, info->media.rel);
 101         else
 102                 drm_printf(p, "media version: %u\n", info->media.ver);
 103
 104         if (info->display.rel)
 105                 drm_printf(p, "display version: %u.%02u\n", info->display.ver, info->display.rel);
 106         else
 107                 drm_printf(p, "display version: %u\n", info->display.ver);
 108
 109         drm_printf(p, "gt: %d\n", info->gt);
 110         drm_printf(p, "memory-regions: %x\n", info->memory_regions);
 111         drm_printf(p, "page-sizes: %x\n", info->page_sizes);
 112         drm_printf(p, "platform: %s\n", intel_platform_name(info->platform));
 113         drm_printf(p, "ppgtt-size: %d\n", info->ppgtt_size);
 114         drm_printf(p, "ppgtt-type: %d\n", info->ppgtt_type);
 115         drm_printf(p, "dma_mask_size: %u\n", info->dma_mask_size);
 116
 117 #define PRINT_FLAG(name) drm_printf(p, "%s: %s\n", #name, str_yes_no(info->name))
 118         DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG);
 119 #undef PRINT_FLAG
 120
 121 #define PRINT_FLAG(name) drm_printf(p, "%s: %s\n", #name, str_yes_no(info->display.name))
 122         DEV_INFO_DISPLAY_FOR_EACH_FLAG(PRINT_FLAG);
 123 #undef PRINT_FLAG
 124 }
 125
 126 void intel_device_info_print_runtime(const struct intel_runtime_info *info,
 127                                      struct drm_printer *p)
 128 {
 129         drm_printf(p, "rawclk rate: %u kHz\n", info->rawclk_freq);
 130 }
 131
 132 #undef INTEL_VGA_DEVICE
 133 #define INTEL_VGA_DEVICE(id, info) (id)
 134
 135 static const u16 subplatform_ult_ids[] = {
 136         INTEL_HSW_ULT_GT1_IDS(0),
 137         INTEL_HSW_ULT_GT2_IDS(0),
 138         INTEL_HSW_ULT_GT3_IDS(0),
 139         INTEL_BDW_ULT_GT1_IDS(0),
 140         INTEL_BDW_ULT_GT2_IDS(0),
 141         INTEL_BDW_ULT_GT3_IDS(0),
 142         INTEL_BDW_ULT_RSVD_IDS(0),
 143         INTEL_SKL_ULT_GT1_IDS(0),
 144         INTEL_SKL_ULT_GT2_IDS(0),
 145         INTEL_SKL_ULT_GT3_IDS(0),
 146         INTEL_KBL_ULT_GT1_IDS(0),
 147         INTEL_KBL_ULT_GT2_IDS(0),
 148         INTEL_KBL_ULT_GT3_IDS(0),
 149         INTEL_CFL_U_GT2_IDS(0),
 150         INTEL_CFL_U_GT3_IDS(0),
 151         INTEL_WHL_U_GT1_IDS(0),
 152         INTEL_WHL_U_GT2_IDS(0),
 153         INTEL_WHL_U_GT3_IDS(0),
 154         INTEL_CML_U_GT1_IDS(0),
 155         INTEL_CML_U_GT2_IDS(0),
 156 };
 157
 158 static const u16 subplatform_ulx_ids[] = {
 159         INTEL_HSW_ULX_GT1_IDS(0),
 160         INTEL_HSW_ULX_GT2_IDS(0),
 161         INTEL_BDW_ULX_GT1_IDS(0),
 162         INTEL_BDW_ULX_GT2_IDS(0),
 163         INTEL_BDW_ULX_GT3_IDS(0),
 164         INTEL_BDW_ULX_RSVD_IDS(0),
 165         INTEL_SKL_ULX_GT1_IDS(0),
 166         INTEL_SKL_ULX_GT2_IDS(0),
 167         INTEL_KBL_ULX_GT1_IDS(0),
 168         INTEL_KBL_ULX_GT2_IDS(0),
 169         INTEL_AML_KBL_GT2_IDS(0),
 170         INTEL_AML_CFL_GT2_IDS(0),
 171 };
 172
 173 static const u16 subplatform_portf_ids[] = {
 174         INTEL_ICL_PORT_F_IDS(0),
 175 };
 176
 177 static const u16 subplatform_uy_ids[] = {
 178         INTEL_TGL_12_GT2_IDS(0),
 179 };
 180
 181 static const u16 subplatform_n_ids[] = {
 182         INTEL_ADLN_IDS(0),
 183 };
 184
 185 static const u16 subplatform_rpl_ids[] = {
 186         INTEL_RPLS_IDS(0),
 187         INTEL_RPLP_IDS(0),
 188 };
 189
 190 static const u16 subplatform_g10_ids[] = {
 191         INTEL_DG2_G10_IDS(0),
 192 };
 193
 194 static const u16 subplatform_g11_ids[] = {
 195         INTEL_DG2_G11_IDS(0),
 196 };
 197
 198 static const u16 subplatform_g12_ids[] = {
 199         INTEL_DG2_G12_IDS(0),
 200 };
 201
 202 static bool find_devid(u16 id, const u16 *p, unsigned int num)
 203 {
 204         for (; num; num--, p++) {
 205                 if (*p == id)
 206                         return true;
 207         }
 208
 209         return false;
 210 }
 211
 212 void intel_device_info_subplatform_init(struct drm_i915_private *i915)
 213 {
 214         const struct intel_device_info *info = INTEL_INFO(i915);
 215         const struct intel_runtime_info *rinfo = RUNTIME_INFO(i915);
 216         const unsigned int pi = __platform_mask_index(rinfo, info->platform);
 217         const unsigned int pb = __platform_mask_bit(rinfo, info->platform);
 218         u16 devid = INTEL_DEVID(i915);
 219         u32 mask = 0;
 220
 221         /* Make sure IS_<platform> checks are working. */
 222         RUNTIME_INFO(i915)->platform_mask[pi] = BIT(pb);
 223
 224         /* Find and mark subplatform bits based on the PCI device id. */
 225         if (find_devid(devid, subplatform_ult_ids,
 226                        ARRAY_SIZE(subplatform_ult_ids))) {
 227                 mask = BIT(INTEL_SUBPLATFORM_ULT);
 228         } else if (find_devid(devid, subplatform_ulx_ids,
 229                               ARRAY_SIZE(subplatform_ulx_ids))) {
 230                 mask = BIT(INTEL_SUBPLATFORM_ULX);
 231                 if (IS_HASWELL(i915) || IS_BROADWELL(i915)) {
 232                         /* ULX machines are also considered ULT. */
 233                         mask |= BIT(INTEL_SUBPLATFORM_ULT);
 234                 }
 235         } else if (find_devid(devid, subplatform_portf_ids,
 236                               ARRAY_SIZE(subplatform_portf_ids))) {
 237                 mask = BIT(INTEL_SUBPLATFORM_PORTF);
 238         } else if (find_devid(devid, subplatform_uy_ids,
 239                            ARRAY_SIZE(subplatform_uy_ids))) {
 240                 mask = BIT(INTEL_SUBPLATFORM_UY);
 241         } else if (find_devid(devid, subplatform_n_ids,
 242                                 ARRAY_SIZE(subplatform_n_ids))) {
 243                 mask = BIT(INTEL_SUBPLATFORM_N);
 244         } else if (find_devid(devid, subplatform_rpl_ids,
 245                               ARRAY_SIZE(subplatform_rpl_ids))) {
 246                 mask = BIT(INTEL_SUBPLATFORM_RPL);
 247         } else if (find_devid(devid, subplatform_g10_ids,
 248                               ARRAY_SIZE(subplatform_g10_ids))) {
 249                 mask = BIT(INTEL_SUBPLATFORM_G10);
 250         } else if (find_devid(devid, subplatform_g11_ids,
 251                               ARRAY_SIZE(subplatform_g11_ids))) {
 252                 mask = BIT(INTEL_SUBPLATFORM_G11);
 253         } else if (find_devid(devid, subplatform_g12_ids,
 254                               ARRAY_SIZE(subplatform_g12_ids))) {
 255                 mask = BIT(INTEL_SUBPLATFORM_G12);
 256         }
 257
 258         GEM_BUG_ON(mask & ~INTEL_SUBPLATFORM_MASK);
 259
 260         RUNTIME_INFO(i915)->platform_mask[pi] |= mask;
 261 }
 262
 263 /**
 264  * intel_device_info_runtime_init - initialize runtime info
 265  * @dev_priv: the i915 device
 266  *
 267  * Determine various intel_device_info fields at runtime.
 268  *
 269  * Use it when either:
 270  *   - it's judged too laborious to fill n static structures with the limit
 271  *     when a simple if statement does the job,
 272  *   - run-time checks (eg read fuse/strap registers) are needed.
 273  *
 274  * This function needs to be called:
 275  *   - after the MMIO has been setup as we are reading registers,
 276  *   - after the PCH has been detected,
 277  *   - before the first usage of the fields it can tweak.
 278  */
 279 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
 280 {
 281         struct intel_device_info *info = mkwrite_device_info(dev_priv);
 282         struct intel_runtime_info *runtime = RUNTIME_INFO(dev_priv);
 283         enum pipe pipe;
 284
 285         /* Wa_14011765242: adl-s A0,A1 */
 286         if (IS_ADLS_DISPLAY_STEP(dev_priv, STEP_A0, STEP_A2))
 287                 for_each_pipe(dev_priv, pipe)
 288                         runtime->num_scalers[pipe] = 0;
 289         else if (DISPLAY_VER(dev_priv) >= 11) {
 290                 for_each_pipe(dev_priv, pipe)
 291                         runtime->num_scalers[pipe] = 2;
 292         } else if (DISPLAY_VER(dev_priv) >= 9) {
 293                 runtime->num_scalers[PIPE_A] = 2;
 294                 runtime->num_scalers[PIPE_B] = 2;
 295                 runtime->num_scalers[PIPE_C] = 1;
 296         }
 297
 298         BUILD_BUG_ON(BITS_PER_TYPE(intel_engine_mask_t) < I915_NUM_ENGINES);
 299
 300         if (DISPLAY_VER(dev_priv) >= 13 || HAS_D12_PLANE_MINIMIZATION(dev_priv))
 301                 for_each_pipe(dev_priv, pipe)
 302                         runtime->num_sprites[pipe] = 4;
 303         else if (DISPLAY_VER(dev_priv) >= 11)
 304                 for_each_pipe(dev_priv, pipe)
 305                         runtime->num_sprites[pipe] = 6;
 306         else if (DISPLAY_VER(dev_priv) == 10)
 307                 for_each_pipe(dev_priv, pipe)
 308                         runtime->num_sprites[pipe] = 3;
 309         else if (IS_BROXTON(dev_priv)) {
 310                 /*
 311                  * Skylake and Broxton currently don't expose the topmost plane as its
 312                  * use is exclusive with the legacy cursor and we only want to expose
 313                  * one of those, not both. Until we can safely expose the topmost plane
 314                  * as a DRM_PLANE_TYPE_CURSOR with all the features exposed/supported,
 315                  * we don't expose the topmost plane at all to prevent ABI breakage
 316                  * down the line.
 317                  */
 318
 319                 runtime->num_sprites[PIPE_A] = 2;
 320                 runtime->num_sprites[PIPE_B] = 2;
 321                 runtime->num_sprites[PIPE_C] = 1;
 322         } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
 323                 for_each_pipe(dev_priv, pipe)
 324                         runtime->num_sprites[pipe] = 2;
 325         } else if (DISPLAY_VER(dev_priv) >= 5 || IS_G4X(dev_priv)) {
 326                 for_each_pipe(dev_priv, pipe)
 327                         runtime->num_sprites[pipe] = 1;
 328         }
 329
 330         if (HAS_DISPLAY(dev_priv) && IS_GRAPHICS_VER(dev_priv, 7, 8) &&
 331             HAS_PCH_SPLIT(dev_priv)) {
 332                 u32 fuse_strap = intel_de_read(dev_priv, FUSE_STRAP);
 333                 u32 sfuse_strap = intel_de_read(dev_priv, SFUSE_STRAP);
 334
 335                 /*
 336                  * SFUSE_STRAP is supposed to have a bit signalling the display
 337                  * is fused off. Unfortunately it seems that, at least in
 338                  * certain cases, fused off display means that PCH display
 339                  * reads don't land anywhere. In that case, we read 0s.
 340                  *
 341                  * On CPT/PPT, we can detect this case as SFUSE_STRAP_FUSE_LOCK
 342                  * should be set when taking over after the firmware.
 343                  */
 344                 if (fuse_strap & ILK_INTERNAL_DISPLAY_DISABLE ||
 345                     sfuse_strap & SFUSE_STRAP_DISPLAY_DISABLED ||
 346                     (HAS_PCH_CPT(dev_priv) &&
 347                      !(sfuse_strap & SFUSE_STRAP_FUSE_LOCK))) {
 348                         drm_info(&dev_priv->drm,
 349                                  "Display fused off, disabling\n");
 350                         info->display.pipe_mask = 0;
 351                         info->display.cpu_transcoder_mask = 0;
 352                         info->display.fbc_mask = 0;
 353                 } else if (fuse_strap & IVB_PIPE_C_DISABLE) {
 354                         drm_info(&dev_priv->drm, "PipeC fused off\n");
 355                         info->display.pipe_mask &= ~BIT(PIPE_C);
 356                         info->display.cpu_transcoder_mask &= ~BIT(TRANSCODER_C);
 357                 }
 358         } else if (HAS_DISPLAY(dev_priv) && DISPLAY_VER(dev_priv) >= 9) {
 359                 u32 dfsm = intel_de_read(dev_priv, SKL_DFSM);
 360
 361                 if (dfsm & SKL_DFSM_PIPE_A_DISABLE) {
 362                         info->display.pipe_mask &= ~BIT(PIPE_A);
 363                         info->display.cpu_transcoder_mask &= ~BIT(TRANSCODER_A);
 364                         info->display.fbc_mask &= ~BIT(INTEL_FBC_A);
 365                 }
 366                 if (dfsm & SKL_DFSM_PIPE_B_DISABLE) {
 367                         info->display.pipe_mask &= ~BIT(PIPE_B);
 368                         info->display.cpu_transcoder_mask &= ~BIT(TRANSCODER_B);
 369                 }
 370                 if (dfsm & SKL_DFSM_PIPE_C_DISABLE) {
 371                         info->display.pipe_mask &= ~BIT(PIPE_C);
 372                         info->display.cpu_transcoder_mask &= ~BIT(TRANSCODER_C);
 373                 }
 374
 375                 if (DISPLAY_VER(dev_priv) >= 12 &&
 376                     (dfsm & TGL_DFSM_PIPE_D_DISABLE)) {
 377                         info->display.pipe_mask &= ~BIT(PIPE_D);
 378                         info->display.cpu_transcoder_mask &= ~BIT(TRANSCODER_D);
 379                 }
 380
 381                 if (dfsm & SKL_DFSM_DISPLAY_HDCP_DISABLE)
 382                         info->display.has_hdcp = 0;
 383
 384                 if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE)
 385                         info->display.fbc_mask = 0;
 386
 387                 if (DISPLAY_VER(dev_priv) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE))
 388                         info->display.has_dmc = 0;
 389
 390                 if (DISPLAY_VER(dev_priv) >= 10 &&
 391                     (dfsm & GLK_DFSM_DISPLAY_DSC_DISABLE))
 392                         info->display.has_dsc = 0;
 393         }
 394
 395         if (GRAPHICS_VER(dev_priv) == 6 && i915_vtd_active(dev_priv)) {
 396                 drm_info(&dev_priv->drm,
 397                          "Disabling ppGTT for VT-d support\n");
 398                 info->ppgtt_type = INTEL_PPGTT_NONE;
 399         }
 400
 401         runtime->rawclk_freq = intel_read_rawclk(dev_priv);
 402         drm_dbg(&dev_priv->drm, "rawclk rate: %d kHz\n", runtime->rawclk_freq);
 403
 404         if (!HAS_DISPLAY(dev_priv)) {
 405                 dev_priv->drm.driver_features &= ~(DRIVER_MODESET |
 406                                                    DRIVER_ATOMIC);
 407                 memset(&info->display, 0, sizeof(info->display));
 408                 memset(runtime->num_sprites, 0, sizeof(runtime->num_sprites));
 409                 memset(runtime->num_scalers, 0, sizeof(runtime->num_scalers));
 410         }
 411 }
 412
 413 void intel_driver_caps_print(const struct intel_driver_caps *caps,
 414                              struct drm_printer *p)
 415 {
 416         drm_printf(p, "Has logical contexts? %s\n",
 417                    str_yes_no(caps->has_logical_contexts));
 418         drm_printf(p, "scheduler: %x\n", caps->scheduler);
 419 }