drivers/gpu/drm/msm/adreno/adreno_device.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2013-2014 Red Hat
   4  * Author: Rob Clark <robdclark@gmail.com>
   5  *
   6  * Copyright (c) 2014,2017 The Linux Foundation. All rights reserved.
   7  */
   8
   9 #include "adreno_gpu.h"
  10
  11 bool hang_debug = false;
  12 MODULE_PARM_DESC(hang_debug, "Dump registers when hang is detected (can be slow!)");
  13 module_param_named(hang_debug, hang_debug, bool, 0600);
  14
  15 bool snapshot_debugbus = false;
  16 MODULE_PARM_DESC(snapshot_debugbus, "Include debugbus sections in GPU devcoredump (if not fused off)");
  17 module_param_named(snapshot_debugbus, snapshot_debugbus, bool, 0600);
  18
  19 bool allow_vram_carveout = false;
  20 MODULE_PARM_DESC(allow_vram_carveout, "Allow using VRAM Carveout, in place of IOMMU");
  21 module_param_named(allow_vram_carveout, allow_vram_carveout, bool, 0600);
  22
  23 static const struct adreno_info gpulist[] = {
  24         {
  25                 .rev   = ADRENO_REV(2, 0, 0, 0),
  26                 .revn  = 200,
  27                 .name  = "A200",
  28                 .fw = {
  29                         [ADRENO_FW_PM4] = "yamato_pm4.fw",
  30                         [ADRENO_FW_PFP] = "yamato_pfp.fw",
  31                 },
  32                 .gmem  = SZ_256K,
  33                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
  34                 .init  = a2xx_gpu_init,
  35         }, { /* a200 on i.mx51 has only 128kib gmem */
  36                 .rev   = ADRENO_REV(2, 0, 0, 1),
  37                 .revn  = 201,
  38                 .name  = "A200",
  39                 .fw = {
  40                         [ADRENO_FW_PM4] = "yamato_pm4.fw",
  41                         [ADRENO_FW_PFP] = "yamato_pfp.fw",
  42                 },
  43                 .gmem  = SZ_128K,
  44                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
  45                 .init  = a2xx_gpu_init,
  46         }, {
  47                 .rev   = ADRENO_REV(2, 2, 0, ANY_ID),
  48                 .revn  = 220,
  49                 .name  = "A220",
  50                 .fw = {
  51                         [ADRENO_FW_PM4] = "leia_pm4_470.fw",
  52                         [ADRENO_FW_PFP] = "leia_pfp_470.fw",
  53                 },
  54                 .gmem  = SZ_512K,
  55                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
  56                 .init  = a2xx_gpu_init,
  57         }, {
  58                 .rev   = ADRENO_REV(3, 0, 5, ANY_ID),
  59                 .revn  = 305,
  60                 .name  = "A305",
  61                 .fw = {
  62                         [ADRENO_FW_PM4] = "a300_pm4.fw",
  63                         [ADRENO_FW_PFP] = "a300_pfp.fw",
  64                 },
  65                 .gmem  = SZ_256K,
  66                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
  67                 .init  = a3xx_gpu_init,
  68         }, {
  69                 .rev   = ADRENO_REV(3, 0, 6, 0),
  70                 .revn  = 307,        /* because a305c is revn==306 */
  71                 .name  = "A306",
  72                 .fw = {
  73                         [ADRENO_FW_PM4] = "a300_pm4.fw",
  74                         [ADRENO_FW_PFP] = "a300_pfp.fw",
  75                 },
  76                 .gmem  = SZ_128K,
  77                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
  78                 .init  = a3xx_gpu_init,
  79         }, {
  80                 .rev   = ADRENO_REV(3, 2, ANY_ID, ANY_ID),
  81                 .revn  = 320,
  82                 .name  = "A320",
  83                 .fw = {
  84                         [ADRENO_FW_PM4] = "a300_pm4.fw",
  85                         [ADRENO_FW_PFP] = "a300_pfp.fw",
  86                 },
  87                 .gmem  = SZ_512K,
  88                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
  89                 .init  = a3xx_gpu_init,
  90         }, {
  91                 .rev   = ADRENO_REV(3, 3, 0, ANY_ID),
  92                 .revn  = 330,
  93                 .name  = "A330",
  94                 .fw = {
  95                         [ADRENO_FW_PM4] = "a330_pm4.fw",
  96                         [ADRENO_FW_PFP] = "a330_pfp.fw",
  97                 },
  98                 .gmem  = SZ_1M,
  99                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 100                 .init  = a3xx_gpu_init,
 101         }, {
 102                 .rev   = ADRENO_REV(4, 0, 5, ANY_ID),
 103                 .revn  = 405,
 104                 .name  = "A405",
 105                 .fw = {
 106                         [ADRENO_FW_PM4] = "a420_pm4.fw",
 107                         [ADRENO_FW_PFP] = "a420_pfp.fw",
 108                 },
 109                 .gmem  = SZ_256K,
 110                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 111                 .init  = a4xx_gpu_init,
 112         }, {
 113                 .rev   = ADRENO_REV(4, 2, 0, ANY_ID),
 114                 .revn  = 420,
 115                 .name  = "A420",
 116                 .fw = {
 117                         [ADRENO_FW_PM4] = "a420_pm4.fw",
 118                         [ADRENO_FW_PFP] = "a420_pfp.fw",
 119                 },
 120                 .gmem  = (SZ_1M + SZ_512K),
 121                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 122                 .init  = a4xx_gpu_init,
 123         }, {
 124                 .rev   = ADRENO_REV(4, 3, 0, ANY_ID),
 125                 .revn  = 430,
 126                 .name  = "A430",
 127                 .fw = {
 128                         [ADRENO_FW_PM4] = "a420_pm4.fw",
 129                         [ADRENO_FW_PFP] = "a420_pfp.fw",
 130                 },
 131                 .gmem  = (SZ_1M + SZ_512K),
 132                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 133                 .init  = a4xx_gpu_init,
 134         }, {
 135                 .rev   = ADRENO_REV(5, 0, 6, ANY_ID),
 136                 .revn = 506,
 137                 .name = "A506",
 138                 .fw = {
 139                         [ADRENO_FW_PM4] = "a530_pm4.fw",
 140                         [ADRENO_FW_PFP] = "a530_pfp.fw",
 141                 },
 142                 .gmem = (SZ_128K + SZ_8K),
 143                 /*
 144                  * Increase inactive period to 250 to avoid bouncing
 145                  * the GDSC which appears to make it grumpy
 146                  */
 147                 .inactive_period = 250,
 148                 .quirks = ADRENO_QUIRK_TWO_PASS_USE_WFI |
 149                           ADRENO_QUIRK_LMLOADKILL_DISABLE,
 150                 .init = a5xx_gpu_init,
 151                 .zapfw = "a506_zap.mdt",
 152         }, {
 153                 .rev   = ADRENO_REV(5, 0, 8, ANY_ID),
 154                 .revn = 508,
 155                 .name = "A508",
 156                 .fw = {
 157                         [ADRENO_FW_PM4] = "a530_pm4.fw",
 158                         [ADRENO_FW_PFP] = "a530_pfp.fw",
 159                 },
 160                 .gmem = (SZ_128K + SZ_8K),
 161                 /*
 162                  * Increase inactive period to 250 to avoid bouncing
 163                  * the GDSC which appears to make it grumpy
 164                  */
 165                 .inactive_period = 250,
 166                 .quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
 167                 .init = a5xx_gpu_init,
 168                 .zapfw = "a508_zap.mdt",
 169         }, {
 170                 .rev   = ADRENO_REV(5, 0, 9, ANY_ID),
 171                 .revn = 509,
 172                 .name = "A509",
 173                 .fw = {
 174                         [ADRENO_FW_PM4] = "a530_pm4.fw",
 175                         [ADRENO_FW_PFP] = "a530_pfp.fw",
 176                 },
 177                 .gmem = (SZ_256K + SZ_16K),
 178                 /*
 179                  * Increase inactive period to 250 to avoid bouncing
 180                  * the GDSC which appears to make it grumpy
 181                  */
 182                 .inactive_period = 250,
 183                 .quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
 184                 .init = a5xx_gpu_init,
 185                 /* Adreno 509 uses the same ZAP as 512 */
 186                 .zapfw = "a512_zap.mdt",
 187         }, {
 188                 .rev   = ADRENO_REV(5, 1, 0, ANY_ID),
 189                 .revn = 510,
 190                 .name = "A510",
 191                 .fw = {
 192                         [ADRENO_FW_PM4] = "a530_pm4.fw",
 193                         [ADRENO_FW_PFP] = "a530_pfp.fw",
 194                 },
 195                 .gmem = SZ_256K,
 196                 /*
 197                  * Increase inactive period to 250 to avoid bouncing
 198                  * the GDSC which appears to make it grumpy
 199                  */
 200                 .inactive_period = 250,
 201                 .init = a5xx_gpu_init,
 202         }, {
 203                 .rev   = ADRENO_REV(5, 1, 2, ANY_ID),
 204                 .revn = 512,
 205                 .name = "A512",
 206                 .fw = {
 207                         [ADRENO_FW_PM4] = "a530_pm4.fw",
 208                         [ADRENO_FW_PFP] = "a530_pfp.fw",
 209                 },
 210                 .gmem = (SZ_256K + SZ_16K),
 211                 /*
 212                  * Increase inactive period to 250 to avoid bouncing
 213                  * the GDSC which appears to make it grumpy
 214                  */
 215                 .inactive_period = 250,
 216                 .quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
 217                 .init = a5xx_gpu_init,
 218                 .zapfw = "a512_zap.mdt",
 219         }, {
 220                 .rev = ADRENO_REV(5, 3, 0, 2),
 221                 .revn = 530,
 222                 .name = "A530",
 223                 .fw = {
 224                         [ADRENO_FW_PM4] = "a530_pm4.fw",
 225                         [ADRENO_FW_PFP] = "a530_pfp.fw",
 226                         [ADRENO_FW_GPMU] = "a530v3_gpmu.fw2",
 227                 },
 228                 .gmem = SZ_1M,
 229                 /*
 230                  * Increase inactive period to 250 to avoid bouncing
 231                  * the GDSC which appears to make it grumpy
 232                  */
 233                 .inactive_period = 250,
 234                 .quirks = ADRENO_QUIRK_TWO_PASS_USE_WFI |
 235                         ADRENO_QUIRK_FAULT_DETECT_MASK,
 236                 .init = a5xx_gpu_init,
 237                 .zapfw = "a530_zap.mdt",
 238         }, {
 239                 .rev = ADRENO_REV(5, 4, 0, ANY_ID),
 240                 .revn = 540,
 241                 .name = "A540",
 242                 .fw = {
 243                         [ADRENO_FW_PM4] = "a530_pm4.fw",
 244                         [ADRENO_FW_PFP] = "a530_pfp.fw",
 245                         [ADRENO_FW_GPMU] = "a540_gpmu.fw2",
 246                 },
 247                 .gmem = SZ_1M,
 248                 /*
 249                  * Increase inactive period to 250 to avoid bouncing
 250                  * the GDSC which appears to make it grumpy
 251                  */
 252                 .inactive_period = 250,
 253                 .quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
 254                 .init = a5xx_gpu_init,
 255                 .zapfw = "a540_zap.mdt",
 256         }, {
 257                 .rev = ADRENO_REV(6, 1, 8, ANY_ID),
 258                 .revn = 618,
 259                 .name = "A618",
 260                 .fw = {
 261                         [ADRENO_FW_SQE] = "a630_sqe.fw",
 262                         [ADRENO_FW_GMU] = "a630_gmu.bin",
 263                 },
 264                 .gmem = SZ_512K,
 265                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 266                 .init = a6xx_gpu_init,
 267         }, {
 268                 .rev = ADRENO_REV(6, 3, 0, ANY_ID),
 269                 .revn = 630,
 270                 .name = "A630",
 271                 .fw = {
 272                         [ADRENO_FW_SQE] = "a630_sqe.fw",
 273                         [ADRENO_FW_GMU] = "a630_gmu.bin",
 274                 },
 275                 .gmem = SZ_1M,
 276                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 277                 .init = a6xx_gpu_init,
 278                 .zapfw = "a630_zap.mdt",
 279                 .hwcg = a630_hwcg,
 280         }, {
 281                 .rev = ADRENO_REV(6, 4, 0, ANY_ID),
 282                 .revn = 640,
 283                 .name = "A640",
 284                 .fw = {
 285                         [ADRENO_FW_SQE] = "a630_sqe.fw",
 286                         [ADRENO_FW_GMU] = "a640_gmu.bin",
 287                 },
 288                 .gmem = SZ_1M,
 289                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 290                 .init = a6xx_gpu_init,
 291                 .zapfw = "a640_zap.mdt",
 292                 .hwcg = a640_hwcg,
 293         }, {
 294                 .rev = ADRENO_REV(6, 5, 0, ANY_ID),
 295                 .revn = 650,
 296                 .name = "A650",
 297                 .fw = {
 298                         [ADRENO_FW_SQE] = "a650_sqe.fw",
 299                         [ADRENO_FW_GMU] = "a650_gmu.bin",
 300                 },
 301                 .gmem = SZ_1M + SZ_128K,
 302                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 303                 .init = a6xx_gpu_init,
 304                 .zapfw = "a650_zap.mdt",
 305                 .hwcg = a650_hwcg,
 306         }, {
 307                 .rev = ADRENO_REV(6, 6, 0, ANY_ID),
 308                 .revn = 660,
 309                 .name = "A660",
 310                 .fw = {
 311                         [ADRENO_FW_SQE] = "a660_sqe.fw",
 312                         [ADRENO_FW_GMU] = "a660_gmu.bin",
 313                 },
 314                 .gmem = SZ_1M + SZ_512K,
 315                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 316                 .init = a6xx_gpu_init,
 317                 .zapfw = "a660_zap.mdt",
 318                 .hwcg = a660_hwcg,
 319         }, {
 320                 .rev = ADRENO_REV(6, 3, 5, ANY_ID),
 321                 .name = "Adreno 7c Gen 3",
 322                 .fw = {
 323                         [ADRENO_FW_SQE] = "a660_sqe.fw",
 324                         [ADRENO_FW_GMU] = "a660_gmu.bin",
 325                 },
 326                 .gmem = SZ_512K,
 327                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 328                 .init = a6xx_gpu_init,
 329                 .hwcg = a660_hwcg,
 330         }, {
 331                 .rev = ADRENO_REV(6, 8, 0, ANY_ID),
 332                 .revn = 680,
 333                 .name = "A680",
 334                 .fw = {
 335                         [ADRENO_FW_SQE] = "a630_sqe.fw",
 336                         [ADRENO_FW_GMU] = "a640_gmu.bin",
 337                 },
 338                 .gmem = SZ_2M,
 339                 .inactive_period = DRM_MSM_INACTIVE_PERIOD,
 340                 .init = a6xx_gpu_init,
 341                 .zapfw = "a640_zap.mdt",
 342                 .hwcg = a640_hwcg,
 343         },
 344 };
 345
 346 MODULE_FIRMWARE("qcom/a300_pm4.fw");
 347 MODULE_FIRMWARE("qcom/a300_pfp.fw");
 348 MODULE_FIRMWARE("qcom/a330_pm4.fw");
 349 MODULE_FIRMWARE("qcom/a330_pfp.fw");
 350 MODULE_FIRMWARE("qcom/a420_pm4.fw");
 351 MODULE_FIRMWARE("qcom/a420_pfp.fw");
 352 MODULE_FIRMWARE("qcom/a530_pm4.fw");
 353 MODULE_FIRMWARE("qcom/a530_pfp.fw");
 354 MODULE_FIRMWARE("qcom/a530v3_gpmu.fw2");
 355 MODULE_FIRMWARE("qcom/a530_zap.mdt");
 356 MODULE_FIRMWARE("qcom/a530_zap.b00");
 357 MODULE_FIRMWARE("qcom/a530_zap.b01");
 358 MODULE_FIRMWARE("qcom/a530_zap.b02");
 359 MODULE_FIRMWARE("qcom/a630_sqe.fw");
 360 MODULE_FIRMWARE("qcom/a630_gmu.bin");
 361 MODULE_FIRMWARE("qcom/a630_zap.mbn");
 362
 363 static inline bool _rev_match(uint8_t entry, uint8_t id)
 364 {
 365         return (entry == ANY_ID) || (entry == id);
 366 }
 367
 368 bool adreno_cmp_rev(struct adreno_rev rev1, struct adreno_rev rev2)
 369 {
 370
 371         return _rev_match(rev1.core, rev2.core) &&
 372                 _rev_match(rev1.major, rev2.major) &&
 373                 _rev_match(rev1.minor, rev2.minor) &&
 374                 _rev_match(rev1.patchid, rev2.patchid);
 375 }
 376
 377 const struct adreno_info *adreno_info(struct adreno_rev rev)
 378 {
 379         int i;
 380
 381         /* identify gpu: */
 382         for (i = 0; i < ARRAY_SIZE(gpulist); i++) {
 383                 const struct adreno_info *info = &gpulist[i];
 384                 if (adreno_cmp_rev(info->rev, rev))
 385                         return info;
 386         }
 387
 388         return NULL;
 389 }
 390
 391 struct msm_gpu *adreno_load_gpu(struct drm_device *dev)
 392 {
 393         struct msm_drm_private *priv = dev->dev_private;
 394         struct platform_device *pdev = priv->gpu_pdev;
 395         struct msm_gpu *gpu = NULL;
 396         struct adreno_gpu *adreno_gpu;
 397         int ret;
 398
 399         if (pdev)
 400                 gpu = dev_to_gpu(&pdev->dev);
 401
 402         if (!gpu) {
 403                 dev_err_once(dev->dev, "no GPU device was found\n");
 404                 return NULL;
 405         }
 406
 407         adreno_gpu = to_adreno_gpu(gpu);
 408
 409         /*
 410          * The number one reason for HW init to fail is if the firmware isn't
 411          * loaded yet. Try that first and don't bother continuing on
 412          * otherwise
 413          */
 414
 415         ret = adreno_load_fw(adreno_gpu);
 416         if (ret)
 417                 return NULL;
 418
 419         /* Make sure pm runtime is active and reset any previous errors */
 420         pm_runtime_set_active(&pdev->dev);
 421
 422         ret = pm_runtime_get_sync(&pdev->dev);
 423         if (ret < 0) {
 424                 pm_runtime_put_sync(&pdev->dev);
 425                 DRM_DEV_ERROR(dev->dev, "Couldn't power up the GPU: %d\n", ret);
 426                 return NULL;
 427         }
 428
 429         mutex_lock(&gpu->lock);
 430         ret = msm_gpu_hw_init(gpu);
 431         mutex_unlock(&gpu->lock);
 432         pm_runtime_put_autosuspend(&pdev->dev);
 433         if (ret) {
 434                 DRM_DEV_ERROR(dev->dev, "gpu hw init failed: %d\n", ret);
 435                 return NULL;
 436         }
 437
 438 #ifdef CONFIG_DEBUG_FS
 439         if (gpu->funcs->debugfs_init) {
 440                 gpu->funcs->debugfs_init(gpu, dev->primary);
 441                 gpu->funcs->debugfs_init(gpu, dev->render);
 442         }
 443 #endif
 444
 445         return gpu;
 446 }
 447
 448 static int find_chipid(struct device *dev, struct adreno_rev *rev)
 449 {
 450         struct device_node *node = dev->of_node;
 451         const char *compat;
 452         int ret;
 453         u32 chipid;
 454
 455         /* first search the compat strings for qcom,adreno-XYZ.W: */
 456         ret = of_property_read_string_index(node, "compatible", 0, &compat);
 457         if (ret == 0) {
 458                 unsigned int r, patch;
 459
 460                 if (sscanf(compat, "qcom,adreno-%u.%u", &r, &patch) == 2 ||
 461                     sscanf(compat, "amd,imageon-%u.%u", &r, &patch) == 2) {
 462                         rev->core = r / 100;
 463                         r %= 100;
 464                         rev->major = r / 10;
 465                         r %= 10;
 466                         rev->minor = r;
 467                         rev->patchid = patch;
 468
 469                         return 0;
 470                 }
 471         }
 472
 473         /* and if that fails, fall back to legacy "qcom,chipid" property: */
 474         ret = of_property_read_u32(node, "qcom,chipid", &chipid);
 475         if (ret) {
 476                 DRM_DEV_ERROR(dev, "could not parse qcom,chipid: %d\n", ret);
 477                 return ret;
 478         }
 479
 480         rev->core = (chipid >> 24) & 0xff;
 481         rev->major = (chipid >> 16) & 0xff;
 482         rev->minor = (chipid >> 8) & 0xff;
 483         rev->patchid = (chipid & 0xff);
 484
 485         dev_warn(dev, "Using legacy qcom,chipid binding!\n");
 486         dev_warn(dev, "Use compatible qcom,adreno-%u%u%u.%u instead.\n",
 487                 rev->core, rev->major, rev->minor, rev->patchid);
 488
 489         return 0;
 490 }
 491
 492 static int adreno_bind(struct device *dev, struct device *master, void *data)
 493 {
 494         static struct adreno_platform_config config = {};
 495         const struct adreno_info *info;
 496         struct msm_drm_private *priv = dev_get_drvdata(master);
 497         struct drm_device *drm = priv->dev;
 498         struct msm_gpu *gpu;
 499         int ret;
 500
 501         ret = find_chipid(dev, &config.rev);
 502         if (ret)
 503                 return ret;
 504
 505         dev->platform_data = &config;
 506         priv->gpu_pdev = to_platform_device(dev);
 507
 508         info = adreno_info(config.rev);
 509
 510         if (!info) {
 511                 dev_warn(drm->dev, "Unknown GPU revision: %u.%u.%u.%u\n",
 512                         config.rev.core, config.rev.major,
 513                         config.rev.minor, config.rev.patchid);
 514                 return -ENXIO;
 515         }
 516
 517         DBG("Found GPU: %u.%u.%u.%u", config.rev.core, config.rev.major,
 518                 config.rev.minor, config.rev.patchid);
 519
 520         priv->is_a2xx = config.rev.core == 2;
 521         priv->has_cached_coherent = config.rev.core >= 6;
 522
 523         gpu = info->init(drm);
 524         if (IS_ERR(gpu)) {
 525                 dev_warn(drm->dev, "failed to load adreno gpu\n");
 526                 return PTR_ERR(gpu);
 527         }
 528
 529         return 0;
 530 }
 531
 532 static void adreno_unbind(struct device *dev, struct device *master,
 533                 void *data)
 534 {
 535         struct msm_drm_private *priv = dev_get_drvdata(master);
 536         struct msm_gpu *gpu = dev_to_gpu(dev);
 537
 538         pm_runtime_force_suspend(dev);
 539         gpu->funcs->destroy(gpu);
 540
 541         priv->gpu_pdev = NULL;
 542 }
 543
 544 static const struct component_ops a3xx_ops = {
 545                 .bind   = adreno_bind,
 546                 .unbind = adreno_unbind,
 547 };
 548
 549 static void adreno_device_register_headless(void)
 550 {
 551         /* on imx5, we don't have a top-level mdp/dpu node
 552          * this creates a dummy node for the driver for that case
 553          */
 554         struct platform_device_info dummy_info = {
 555                 .parent = NULL,
 556                 .name = "msm",
 557                 .id = -1,
 558                 .res = NULL,
 559                 .num_res = 0,
 560                 .data = NULL,
 561                 .size_data = 0,
 562                 .dma_mask = ~0,
 563         };
 564         platform_device_register_full(&dummy_info);
 565 }
 566
 567 static int adreno_probe(struct platform_device *pdev)
 568 {
 569
 570         int ret;
 571
 572         ret = component_add(&pdev->dev, &a3xx_ops);
 573         if (ret)
 574                 return ret;
 575
 576         if (of_device_is_compatible(pdev->dev.of_node, "amd,imageon"))
 577                 adreno_device_register_headless();
 578
 579         return 0;
 580 }
 581
 582 static int adreno_remove(struct platform_device *pdev)
 583 {
 584         component_del(&pdev->dev, &a3xx_ops);
 585         return 0;
 586 }
 587
 588 static void adreno_shutdown(struct platform_device *pdev)
 589 {
 590         pm_runtime_force_suspend(&pdev->dev);
 591 }
 592
 593 static const struct of_device_id dt_match[] = {
 594         { .compatible = "qcom,adreno" },
 595         { .compatible = "qcom,adreno-3xx" },
 596         /* for compatibility with imx5 gpu: */
 597         { .compatible = "amd,imageon" },
 598         /* for backwards compat w/ downstream kgsl DT files: */
 599         { .compatible = "qcom,kgsl-3d0" },
 600         {}
 601 };
 602
 603 #ifdef CONFIG_PM
 604 static int adreno_resume(struct device *dev)
 605 {
 606         struct msm_gpu *gpu = dev_to_gpu(dev);
 607
 608         return gpu->funcs->pm_resume(gpu);
 609 }
 610
 611 static int active_submits(struct msm_gpu *gpu)
 612 {
 613         int active_submits;
 614         mutex_lock(&gpu->active_lock);
 615         active_submits = gpu->active_submits;
 616         mutex_unlock(&gpu->active_lock);
 617         return active_submits;
 618 }
 619
 620 static int adreno_suspend(struct device *dev)
 621 {
 622         struct msm_gpu *gpu = dev_to_gpu(dev);
 623         int remaining;
 624
 625         remaining = wait_event_timeout(gpu->retire_event,
 626                                        active_submits(gpu) == 0,
 627                                        msecs_to_jiffies(1000));
 628         if (remaining == 0) {
 629                 dev_err(dev, "Timeout waiting for GPU to suspend\n");
 630                 return -EBUSY;
 631         }
 632
 633         return gpu->funcs->pm_suspend(gpu);
 634 }
 635 #endif
 636
 637 static const struct dev_pm_ops adreno_pm_ops = {
 638         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume)
 639         SET_RUNTIME_PM_OPS(adreno_suspend, adreno_resume, NULL)
 640 };
 641
 642 static struct platform_driver adreno_driver = {
 643         .probe = adreno_probe,
 644         .remove = adreno_remove,
 645         .shutdown = adreno_shutdown,
 646         .driver = {
 647                 .name = "adreno",
 648                 .of_match_table = dt_match,
 649                 .pm = &adreno_pm_ops,
 650         },
 651 };
 652
 653 void __init adreno_register(void)
 654 {
 655         platform_driver_register(&adreno_driver);
 656 }
 657
 658 void __exit adreno_unregister(void)
 659 {
 660         platform_driver_unregister(&adreno_driver);
 661 }