drivers/gpu/drm/radeon/radeon_kms.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #include <drm/drmP.h>
  29 #include "radeon.h"
  30 #include <drm/radeon_drm.h>
  31 #include "radeon_asic.h"
  32
  33 #include <linux/vga_switcheroo.h>
  34 #include <linux/slab.h>
  35 #include <linux/pm_runtime.h>
  36
  37 #include "radeon_kfd.h"
  38
  39 #if defined(CONFIG_VGA_SWITCHEROO)
  40 bool radeon_has_atpx(void);
  41 #else
  42 static inline bool radeon_has_atpx(void) { return false; }
  43 #endif
  44
  45 /**
  46  * radeon_driver_unload_kms - Main unload function for KMS.
  47  *
  48  * @dev: drm dev pointer
  49  *
  50  * This is the main unload function for KMS (all asics).
  51  * It calls radeon_modeset_fini() to tear down the
  52  * displays, and radeon_device_fini() to tear down
  53  * the rest of the device (CP, writeback, etc.).
  54  * Returns 0 on success.
  55  */
  56 int radeon_driver_unload_kms(struct drm_device *dev)
  57 {
  58         struct radeon_device *rdev = dev->dev_private;
  59
  60         if (rdev == NULL)
  61                 return 0;
  62
  63         if (rdev->rmmio == NULL)
  64                 goto done_free;
  65
  66         pm_runtime_get_sync(dev->dev);
  67
  68         radeon_kfd_device_fini(rdev);
  69
  70         radeon_acpi_fini(rdev);
  71
  72         radeon_modeset_fini(rdev);
  73         radeon_device_fini(rdev);
  74
  75 done_free:
  76         kfree(rdev);
  77         dev->dev_private = NULL;
  78         return 0;
  79 }
  80
  81 /**
  82  * radeon_driver_load_kms - Main load function for KMS.
  83  *
  84  * @dev: drm dev pointer
  85  * @flags: device flags
  86  *
  87  * This is the main load function for KMS (all asics).
  88  * It calls radeon_device_init() to set up the non-display
  89  * parts of the chip (asic init, CP, writeback, etc.), and
  90  * radeon_modeset_init() to set up the display parts
  91  * (crtcs, encoders, hotplug detect, etc.).
  92  * Returns 0 on success, error on failure.
  93  */
  94 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
  95 {
  96         struct radeon_device *rdev;
  97         int r, acpi_status;
  98
  99         rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
 100         if (rdev == NULL) {
 101                 return -ENOMEM;
 102         }
 103         dev->dev_private = (void *)rdev;
 104
 105         /* update BUS flag */
 106         if (drm_pci_device_is_agp(dev)) {
 107                 flags |= RADEON_IS_AGP;
 108         } else if (pci_is_pcie(dev->pdev)) {
 109                 flags |= RADEON_IS_PCIE;
 110         } else {
 111                 flags |= RADEON_IS_PCI;
 112         }
 113
 114         if ((radeon_runtime_pm != 0) &&
 115             radeon_has_atpx() &&
 116             ((flags & RADEON_IS_IGP) == 0))
 117                 flags |= RADEON_IS_PX;
 118
 119         /* radeon_device_init should report only fatal error
 120          * like memory allocation failure or iomapping failure,
 121          * or memory manager initialization failure, it must
 122          * properly initialize the GPU MC controller and permit
 123          * VRAM allocation
 124          */
 125         r = radeon_device_init(rdev, dev, dev->pdev, flags);
 126         if (r) {
 127                 dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
 128                 goto out;
 129         }
 130
 131         /* Again modeset_init should fail only on fatal error
 132          * otherwise it should provide enough functionalities
 133          * for shadowfb to run
 134          */
 135         r = radeon_modeset_init(rdev);
 136         if (r)
 137                 dev_err(&dev->pdev->dev, "Fatal error during modeset init\n");
 138
 139         /* Call ACPI methods: require modeset init
 140          * but failure is not fatal
 141          */
 142         if (!r) {
 143                 acpi_status = radeon_acpi_init(rdev);
 144                 if (acpi_status)
 145                 dev_dbg(&dev->pdev->dev,
 146                                 "Error during ACPI methods call\n");
 147         }
 148
 149         radeon_kfd_device_probe(rdev);
 150         radeon_kfd_device_init(rdev);
 151
 152         if (radeon_is_px(dev)) {
 153                 pm_runtime_use_autosuspend(dev->dev);
 154                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 155                 pm_runtime_set_active(dev->dev);
 156                 pm_runtime_allow(dev->dev);
 157                 pm_runtime_mark_last_busy(dev->dev);
 158                 pm_runtime_put_autosuspend(dev->dev);
 159         }
 160
 161 out:
 162         if (r)
 163                 radeon_driver_unload_kms(dev);
 164
 165
 166         return r;
 167 }
 168
 169 /**
 170  * radeon_set_filp_rights - Set filp right.
 171  *
 172  * @dev: drm dev pointer
 173  * @owner: drm file
 174  * @applier: drm file
 175  * @value: value
 176  *
 177  * Sets the filp rights for the device (all asics).
 178  */
 179 static void radeon_set_filp_rights(struct drm_device *dev,
 180                                    struct drm_file **owner,
 181                                    struct drm_file *applier,
 182                                    uint32_t *value)
 183 {
 184         mutex_lock(&dev->struct_mutex);
 185         if (*value == 1) {
 186                 /* wants rights */
 187                 if (!*owner)
 188                         *owner = applier;
 189         } else if (*value == 0) {
 190                 /* revokes rights */
 191                 if (*owner == applier)
 192                         *owner = NULL;
 193         }
 194         *value = *owner == applier ? 1 : 0;
 195         mutex_unlock(&dev->struct_mutex);
 196 }
 197
 198 /*
 199  * Userspace get information ioctl
 200  */
 201 /**
 202  * radeon_info_ioctl - answer a device specific request.
 203  *
 204  * @rdev: radeon device pointer
 205  * @data: request object
 206  * @filp: drm filp
 207  *
 208  * This function is used to pass device specific parameters to the userspace
 209  * drivers.  Examples include: pci device id, pipeline parms, tiling params,
 210  * etc. (all asics).
 211  * Returns 0 on success, -EINVAL on failure.
 212  */
 213 static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 214 {
 215         struct radeon_device *rdev = dev->dev_private;
 216         struct drm_radeon_info *info = data;
 217         struct radeon_mode_info *minfo = &rdev->mode_info;
 218         uint32_t *value, value_tmp, *value_ptr, value_size;
 219         uint64_t value64;
 220         struct drm_crtc *crtc;
 221         int i, found;
 222
 223         value_ptr = (uint32_t *)((unsigned long)info->value);
 224         value = &value_tmp;
 225         value_size = sizeof(uint32_t);
 226
 227         switch (info->request) {
 228         case RADEON_INFO_DEVICE_ID:
 229                 *value = dev->pdev->device;
 230                 break;
 231         case RADEON_INFO_NUM_GB_PIPES:
 232                 *value = rdev->num_gb_pipes;
 233                 break;
 234         case RADEON_INFO_NUM_Z_PIPES:
 235                 *value = rdev->num_z_pipes;
 236                 break;
 237         case RADEON_INFO_ACCEL_WORKING:
 238                 /* xf86-video-ati 6.13.0 relies on this being false for evergreen */
 239                 if ((rdev->family >= CHIP_CEDAR) && (rdev->family <= CHIP_HEMLOCK))
 240                         *value = false;
 241                 else
 242                         *value = rdev->accel_working;
 243                 break;
 244         case RADEON_INFO_CRTC_FROM_ID:
 245                 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
 246                         DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 247                         return -EFAULT;
 248                 }
 249                 for (i = 0, found = 0; i < rdev->num_crtc; i++) {
 250                         crtc = (struct drm_crtc *)minfo->crtcs[i];
 251                         if (crtc && crtc->base.id == *value) {
 252                                 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 253                                 *value = radeon_crtc->crtc_id;
 254                                 found = 1;
 255                                 break;
 256                         }
 257                 }
 258                 if (!found) {
 259                         DRM_DEBUG_KMS("unknown crtc id %d\n", *value);
 260                         return -EINVAL;
 261                 }
 262                 break;
 263         case RADEON_INFO_ACCEL_WORKING2:
 264                 if (rdev->family == CHIP_HAWAII) {
 265                         if (rdev->accel_working) {
 266                                 if (rdev->new_fw)
 267                                         *value = 3;
 268                                 else
 269                                         *value = 2;
 270                         } else {
 271                                 *value = 0;
 272                         }
 273                 } else {
 274                         *value = rdev->accel_working;
 275                 }
 276                 break;
 277         case RADEON_INFO_TILING_CONFIG:
 278                 if (rdev->family >= CHIP_BONAIRE)
 279                         *value = rdev->config.cik.tile_config;
 280                 else if (rdev->family >= CHIP_TAHITI)
 281                         *value = rdev->config.si.tile_config;
 282                 else if (rdev->family >= CHIP_CAYMAN)
 283                         *value = rdev->config.cayman.tile_config;
 284                 else if (rdev->family >= CHIP_CEDAR)
 285                         *value = rdev->config.evergreen.tile_config;
 286                 else if (rdev->family >= CHIP_RV770)
 287                         *value = rdev->config.rv770.tile_config;
 288                 else if (rdev->family >= CHIP_R600)
 289                         *value = rdev->config.r600.tile_config;
 290                 else {
 291                         DRM_DEBUG_KMS("tiling config is r6xx+ only!\n");
 292                         return -EINVAL;
 293                 }
 294                 break;
 295         case RADEON_INFO_WANT_HYPERZ:
 296                 /* The "value" here is both an input and output parameter.
 297                  * If the input value is 1, filp requests hyper-z access.
 298                  * If the input value is 0, filp revokes its hyper-z access.
 299                  *
 300                  * When returning, the value is 1 if filp owns hyper-z access,
 301                  * 0 otherwise. */
 302                 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
 303                         DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 304                         return -EFAULT;
 305                 }
 306                 if (*value >= 2) {
 307                         DRM_DEBUG_KMS("WANT_HYPERZ: invalid value %d\n", *value);
 308                         return -EINVAL;
 309                 }
 310                 radeon_set_filp_rights(dev, &rdev->hyperz_filp, filp, value);
 311                 break;
 312         case RADEON_INFO_WANT_CMASK:
 313                 /* The same logic as Hyper-Z. */
 314                 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
 315                         DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 316                         return -EFAULT;
 317                 }
 318                 if (*value >= 2) {
 319                         DRM_DEBUG_KMS("WANT_CMASK: invalid value %d\n", *value);
 320                         return -EINVAL;
 321                 }
 322                 radeon_set_filp_rights(dev, &rdev->cmask_filp, filp, value);
 323                 break;
 324         case RADEON_INFO_CLOCK_CRYSTAL_FREQ:
 325                 /* return clock value in KHz */
 326                 if (rdev->asic->get_xclk)
 327                         *value = radeon_get_xclk(rdev) * 10;
 328                 else
 329                         *value = rdev->clock.spll.reference_freq * 10;
 330                 break;
 331         case RADEON_INFO_NUM_BACKENDS:
 332                 if (rdev->family >= CHIP_BONAIRE)
 333                         *value = rdev->config.cik.max_backends_per_se *
 334                                 rdev->config.cik.max_shader_engines;
 335                 else if (rdev->family >= CHIP_TAHITI)
 336                         *value = rdev->config.si.max_backends_per_se *
 337                                 rdev->config.si.max_shader_engines;
 338                 else if (rdev->family >= CHIP_CAYMAN)
 339                         *value = rdev->config.cayman.max_backends_per_se *
 340                                 rdev->config.cayman.max_shader_engines;
 341                 else if (rdev->family >= CHIP_CEDAR)
 342                         *value = rdev->config.evergreen.max_backends;
 343                 else if (rdev->family >= CHIP_RV770)
 344                         *value = rdev->config.rv770.max_backends;
 345                 else if (rdev->family >= CHIP_R600)
 346                         *value = rdev->config.r600.max_backends;
 347                 else {
 348                         return -EINVAL;
 349                 }
 350                 break;
 351         case RADEON_INFO_NUM_TILE_PIPES:
 352                 if (rdev->family >= CHIP_BONAIRE)
 353                         *value = rdev->config.cik.max_tile_pipes;
 354                 else if (rdev->family >= CHIP_TAHITI)
 355                         *value = rdev->config.si.max_tile_pipes;
 356                 else if (rdev->family >= CHIP_CAYMAN)
 357                         *value = rdev->config.cayman.max_tile_pipes;
 358                 else if (rdev->family >= CHIP_CEDAR)
 359                         *value = rdev->config.evergreen.max_tile_pipes;
 360                 else if (rdev->family >= CHIP_RV770)
 361                         *value = rdev->config.rv770.max_tile_pipes;
 362                 else if (rdev->family >= CHIP_R600)
 363                         *value = rdev->config.r600.max_tile_pipes;
 364                 else {
 365                         return -EINVAL;
 366                 }
 367                 break;
 368         case RADEON_INFO_FUSION_GART_WORKING:
 369                 *value = 1;
 370                 break;
 371         case RADEON_INFO_BACKEND_MAP:
 372                 if (rdev->family >= CHIP_BONAIRE)
 373                         *value = rdev->config.cik.backend_map;
 374                 else if (rdev->family >= CHIP_TAHITI)
 375                         *value = rdev->config.si.backend_map;
 376                 else if (rdev->family >= CHIP_CAYMAN)
 377                         *value = rdev->config.cayman.backend_map;
 378                 else if (rdev->family >= CHIP_CEDAR)
 379                         *value = rdev->config.evergreen.backend_map;
 380                 else if (rdev->family >= CHIP_RV770)
 381                         *value = rdev->config.rv770.backend_map;
 382                 else if (rdev->family >= CHIP_R600)
 383                         *value = rdev->config.r600.backend_map;
 384                 else {
 385                         return -EINVAL;
 386                 }
 387                 break;
 388         case RADEON_INFO_VA_START:
 389                 /* this is where we report if vm is supported or not */
 390                 if (rdev->family < CHIP_CAYMAN)
 391                         return -EINVAL;
 392                 *value = RADEON_VA_RESERVED_SIZE;
 393                 break;
 394         case RADEON_INFO_IB_VM_MAX_SIZE:
 395                 /* this is where we report if vm is supported or not */
 396                 if (rdev->family < CHIP_CAYMAN)
 397                         return -EINVAL;
 398                 *value = RADEON_IB_VM_MAX_SIZE;
 399                 break;
 400         case RADEON_INFO_MAX_PIPES:
 401                 if (rdev->family >= CHIP_BONAIRE)
 402                         *value = rdev->config.cik.max_cu_per_sh;
 403                 else if (rdev->family >= CHIP_TAHITI)
 404                         *value = rdev->config.si.max_cu_per_sh;
 405                 else if (rdev->family >= CHIP_CAYMAN)
 406                         *value = rdev->config.cayman.max_pipes_per_simd;
 407                 else if (rdev->family >= CHIP_CEDAR)
 408                         *value = rdev->config.evergreen.max_pipes;
 409                 else if (rdev->family >= CHIP_RV770)
 410                         *value = rdev->config.rv770.max_pipes;
 411                 else if (rdev->family >= CHIP_R600)
 412                         *value = rdev->config.r600.max_pipes;
 413                 else {
 414                         return -EINVAL;
 415                 }
 416                 break;
 417         case RADEON_INFO_TIMESTAMP:
 418                 if (rdev->family < CHIP_R600) {
 419                         DRM_DEBUG_KMS("timestamp is r6xx+ only!\n");
 420                         return -EINVAL;
 421                 }
 422                 value = (uint32_t*)&value64;
 423                 value_size = sizeof(uint64_t);
 424                 value64 = radeon_get_gpu_clock_counter(rdev);
 425                 break;
 426         case RADEON_INFO_MAX_SE:
 427                 if (rdev->family >= CHIP_BONAIRE)
 428                         *value = rdev->config.cik.max_shader_engines;
 429                 else if (rdev->family >= CHIP_TAHITI)
 430                         *value = rdev->config.si.max_shader_engines;
 431                 else if (rdev->family >= CHIP_CAYMAN)
 432                         *value = rdev->config.cayman.max_shader_engines;
 433                 else if (rdev->family >= CHIP_CEDAR)
 434                         *value = rdev->config.evergreen.num_ses;
 435                 else
 436                         *value = 1;
 437                 break;
 438         case RADEON_INFO_MAX_SH_PER_SE:
 439                 if (rdev->family >= CHIP_BONAIRE)
 440                         *value = rdev->config.cik.max_sh_per_se;
 441                 else if (rdev->family >= CHIP_TAHITI)
 442                         *value = rdev->config.si.max_sh_per_se;
 443                 else
 444                         return -EINVAL;
 445                 break;
 446         case RADEON_INFO_FASTFB_WORKING:
 447                 *value = rdev->fastfb_working;
 448                 break;
 449         case RADEON_INFO_RING_WORKING:
 450                 if (copy_from_user(value, value_ptr, sizeof(uint32_t))) {
 451                         DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 452                         return -EFAULT;
 453                 }
 454                 switch (*value) {
 455                 case RADEON_CS_RING_GFX:
 456                 case RADEON_CS_RING_COMPUTE:
 457                         *value = rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready;
 458                         break;
 459                 case RADEON_CS_RING_DMA:
 460                         *value = rdev->ring[R600_RING_TYPE_DMA_INDEX].ready;
 461                         *value |= rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready;
 462                         break;
 463                 case RADEON_CS_RING_UVD:
 464                         *value = rdev->ring[R600_RING_TYPE_UVD_INDEX].ready;
 465                         break;
 466                 case RADEON_CS_RING_VCE:
 467                         *value = rdev->ring[TN_RING_TYPE_VCE1_INDEX].ready;
 468                         break;
 469                 default:
 470                         return -EINVAL;
 471                 }
 472                 break;
 473         case RADEON_INFO_SI_TILE_MODE_ARRAY:
 474                 if (rdev->family >= CHIP_BONAIRE) {
 475                         value = rdev->config.cik.tile_mode_array;
 476                         value_size = sizeof(uint32_t)*32;
 477                 } else if (rdev->family >= CHIP_TAHITI) {
 478                         value = rdev->config.si.tile_mode_array;
 479                         value_size = sizeof(uint32_t)*32;
 480                 } else {
 481                         DRM_DEBUG_KMS("tile mode array is si+ only!\n");
 482                         return -EINVAL;
 483                 }
 484                 break;
 485         case RADEON_INFO_CIK_MACROTILE_MODE_ARRAY:
 486                 if (rdev->family >= CHIP_BONAIRE) {
 487                         value = rdev->config.cik.macrotile_mode_array;
 488                         value_size = sizeof(uint32_t)*16;
 489                 } else {
 490                         DRM_DEBUG_KMS("macrotile mode array is cik+ only!\n");
 491                         return -EINVAL;
 492                 }
 493                 break;
 494         case RADEON_INFO_SI_CP_DMA_COMPUTE:
 495                 *value = 1;
 496                 break;
 497         case RADEON_INFO_SI_BACKEND_ENABLED_MASK:
 498                 if (rdev->family >= CHIP_BONAIRE) {
 499                         *value = rdev->config.cik.backend_enable_mask;
 500                 } else if (rdev->family >= CHIP_TAHITI) {
 501                         *value = rdev->config.si.backend_enable_mask;
 502                 } else {
 503                         DRM_DEBUG_KMS("BACKEND_ENABLED_MASK is si+ only!\n");
 504                 }
 505                 break;
 506         case RADEON_INFO_MAX_SCLK:
 507                 if ((rdev->pm.pm_method == PM_METHOD_DPM) &&
 508                     rdev->pm.dpm_enabled)
 509                         *value = rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk * 10;
 510                 else
 511                         *value = rdev->pm.default_sclk * 10;
 512                 break;
 513         case RADEON_INFO_VCE_FW_VERSION:
 514                 *value = rdev->vce.fw_version;
 515                 break;
 516         case RADEON_INFO_VCE_FB_VERSION:
 517                 *value = rdev->vce.fb_version;
 518                 break;
 519         case RADEON_INFO_NUM_BYTES_MOVED:
 520                 value = (uint32_t*)&value64;
 521                 value_size = sizeof(uint64_t);
 522                 value64 = atomic64_read(&rdev->num_bytes_moved);
 523                 break;
 524         case RADEON_INFO_VRAM_USAGE:
 525                 value = (uint32_t*)&value64;
 526                 value_size = sizeof(uint64_t);
 527                 value64 = atomic64_read(&rdev->vram_usage);
 528                 break;
 529         case RADEON_INFO_GTT_USAGE:
 530                 value = (uint32_t*)&value64;
 531                 value_size = sizeof(uint64_t);
 532                 value64 = atomic64_read(&rdev->gtt_usage);
 533                 break;
 534         case RADEON_INFO_ACTIVE_CU_COUNT:
 535                 if (rdev->family >= CHIP_BONAIRE)
 536                         *value = rdev->config.cik.active_cus;
 537                 else if (rdev->family >= CHIP_TAHITI)
 538                         *value = rdev->config.si.active_cus;
 539                 else if (rdev->family >= CHIP_CAYMAN)
 540                         *value = rdev->config.cayman.active_simds;
 541                 else if (rdev->family >= CHIP_CEDAR)
 542                         *value = rdev->config.evergreen.active_simds;
 543                 else if (rdev->family >= CHIP_RV770)
 544                         *value = rdev->config.rv770.active_simds;
 545                 else if (rdev->family >= CHIP_R600)
 546                         *value = rdev->config.r600.active_simds;
 547                 else
 548                         *value = 1;
 549                 break;
 550         default:
 551                 DRM_DEBUG_KMS("Invalid request %d\n", info->request);
 552                 return -EINVAL;
 553         }
 554         if (copy_to_user(value_ptr, (char*)value, value_size)) {
 555                 DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);
 556                 return -EFAULT;
 557         }
 558         return 0;
 559 }
 560
 561
 562 /*
 563  * Outdated mess for old drm with Xorg being in charge (void function now).
 564  */
 565 /**
 566  * radeon_driver_firstopen_kms - drm callback for last close
 567  *
 568  * @dev: drm dev pointer
 569  *
 570  * Switch vga switcheroo state after last close (all asics).
 571  */
 572 void radeon_driver_lastclose_kms(struct drm_device *dev)
 573 {
 574         vga_switcheroo_process_delayed_switch();
 575 }
 576
 577 /**
 578  * radeon_driver_open_kms - drm callback for open
 579  *
 580  * @dev: drm dev pointer
 581  * @file_priv: drm file
 582  *
 583  * On device open, init vm on cayman+ (all asics).
 584  * Returns 0 on success, error on failure.
 585  */
 586 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 587 {
 588         struct radeon_device *rdev = dev->dev_private;
 589         int r;
 590
 591         file_priv->driver_priv = NULL;
 592
 593         r = pm_runtime_get_sync(dev->dev);
 594         if (r < 0)
 595                 return r;
 596
 597         /* new gpu have virtual address space support */
 598         if (rdev->family >= CHIP_CAYMAN) {
 599                 struct radeon_fpriv *fpriv;
 600                 struct radeon_vm *vm;
 601                 int r;
 602
 603                 fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
 604                 if (unlikely(!fpriv)) {
 605                         return -ENOMEM;
 606                 }
 607
 608                 if (rdev->accel_working) {
 609                         vm = &fpriv->vm;
 610                         r = radeon_vm_init(rdev, vm);
 611                         if (r) {
 612                                 kfree(fpriv);
 613                                 return r;
 614                         }
 615
 616                         r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
 617                         if (r) {
 618                                 radeon_vm_fini(rdev, vm);
 619                                 kfree(fpriv);
 620                                 return r;
 621                         }
 622
 623                         /* map the ib pool buffer read only into
 624                          * virtual address space */
 625                         vm->ib_bo_va = radeon_vm_bo_add(rdev, vm,
 626                                                         rdev->ring_tmp_bo.bo);
 627                         r = radeon_vm_bo_set_addr(rdev, vm->ib_bo_va,
 628                                                   RADEON_VA_IB_OFFSET,
 629                                                   RADEON_VM_PAGE_READABLE |
 630                                                   RADEON_VM_PAGE_SNOOPED);
 631                         if (r) {
 632                                 radeon_vm_fini(rdev, vm);
 633                                 kfree(fpriv);
 634                                 return r;
 635                         }
 636                 }
 637                 file_priv->driver_priv = fpriv;
 638         }
 639
 640         pm_runtime_mark_last_busy(dev->dev);
 641         pm_runtime_put_autosuspend(dev->dev);
 642         return 0;
 643 }
 644
 645 /**
 646  * radeon_driver_postclose_kms - drm callback for post close
 647  *
 648  * @dev: drm dev pointer
 649  * @file_priv: drm file
 650  *
 651  * On device post close, tear down vm on cayman+ (all asics).
 652  */
 653 void radeon_driver_postclose_kms(struct drm_device *dev,
 654                                  struct drm_file *file_priv)
 655 {
 656         struct radeon_device *rdev = dev->dev_private;
 657
 658         /* new gpu have virtual address space support */
 659         if (rdev->family >= CHIP_CAYMAN && file_priv->driver_priv) {
 660                 struct radeon_fpriv *fpriv = file_priv->driver_priv;
 661                 struct radeon_vm *vm = &fpriv->vm;
 662                 int r;
 663
 664                 if (rdev->accel_working) {
 665                         r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
 666                         if (!r) {
 667                                 if (vm->ib_bo_va)
 668                                         radeon_vm_bo_rmv(rdev, vm->ib_bo_va);
 669                                 radeon_bo_unreserve(rdev->ring_tmp_bo.bo);
 670                         }
 671                         radeon_vm_fini(rdev, vm);
 672                 }
 673
 674                 kfree(fpriv);
 675                 file_priv->driver_priv = NULL;
 676         }
 677 }
 678
 679 /**
 680  * radeon_driver_preclose_kms - drm callback for pre close
 681  *
 682  * @dev: drm dev pointer
 683  * @file_priv: drm file
 684  *
 685  * On device pre close, tear down hyperz and cmask filps on r1xx-r5xx
 686  * (all asics).
 687  */
 688 void radeon_driver_preclose_kms(struct drm_device *dev,
 689                                 struct drm_file *file_priv)
 690 {
 691         struct radeon_device *rdev = dev->dev_private;
 692         if (rdev->hyperz_filp == file_priv)
 693                 rdev->hyperz_filp = NULL;
 694         if (rdev->cmask_filp == file_priv)
 695                 rdev->cmask_filp = NULL;
 696         radeon_uvd_free_handles(rdev, file_priv);
 697         radeon_vce_free_handles(rdev, file_priv);
 698 }
 699
 700 /*
 701  * VBlank related functions.
 702  */
 703 /**
 704  * radeon_get_vblank_counter_kms - get frame count
 705  *
 706  * @dev: drm dev pointer
 707  * @crtc: crtc to get the frame count from
 708  *
 709  * Gets the frame count on the requested crtc (all asics).
 710  * Returns frame count on success, -EINVAL on failure.
 711  */
 712 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
 713 {
 714         struct radeon_device *rdev = dev->dev_private;
 715
 716         if (crtc < 0 || crtc >= rdev->num_crtc) {
 717                 DRM_ERROR("Invalid crtc %d\n", crtc);
 718                 return -EINVAL;
 719         }
 720
 721         return radeon_get_vblank_counter(rdev, crtc);
 722 }
 723
 724 /**
 725  * radeon_enable_vblank_kms - enable vblank interrupt
 726  *
 727  * @dev: drm dev pointer
 728  * @crtc: crtc to enable vblank interrupt for
 729  *
 730  * Enable the interrupt on the requested crtc (all asics).
 731  * Returns 0 on success, -EINVAL on failure.
 732  */
 733 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
 734 {
 735         struct radeon_device *rdev = dev->dev_private;
 736         unsigned long irqflags;
 737         int r;
 738
 739         if (crtc < 0 || crtc >= rdev->num_crtc) {
 740                 DRM_ERROR("Invalid crtc %d\n", crtc);
 741                 return -EINVAL;
 742         }
 743
 744         spin_lock_irqsave(&rdev->irq.lock, irqflags);
 745         rdev->irq.crtc_vblank_int[crtc] = true;
 746         r = radeon_irq_set(rdev);
 747         spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
 748         return r;
 749 }
 750
 751 /**
 752  * radeon_disable_vblank_kms - disable vblank interrupt
 753  *
 754  * @dev: drm dev pointer
 755  * @crtc: crtc to disable vblank interrupt for
 756  *
 757  * Disable the interrupt on the requested crtc (all asics).
 758  */
 759 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
 760 {
 761         struct radeon_device *rdev = dev->dev_private;
 762         unsigned long irqflags;
 763
 764         if (crtc < 0 || crtc >= rdev->num_crtc) {
 765                 DRM_ERROR("Invalid crtc %d\n", crtc);
 766                 return;
 767         }
 768
 769         spin_lock_irqsave(&rdev->irq.lock, irqflags);
 770         rdev->irq.crtc_vblank_int[crtc] = false;
 771         radeon_irq_set(rdev);
 772         spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
 773 }
 774
 775 /**
 776  * radeon_get_vblank_timestamp_kms - get vblank timestamp
 777  *
 778  * @dev: drm dev pointer
 779  * @crtc: crtc to get the timestamp for
 780  * @max_error: max error
 781  * @vblank_time: time value
 782  * @flags: flags passed to the driver
 783  *
 784  * Gets the timestamp on the requested crtc based on the
 785  * scanout position.  (all asics).
 786  * Returns postive status flags on success, negative error on failure.
 787  */
 788 int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
 789                                     int *max_error,
 790                                     struct timeval *vblank_time,
 791                                     unsigned flags)
 792 {
 793         struct drm_crtc *drmcrtc;
 794         struct radeon_device *rdev = dev->dev_private;
 795
 796         if (crtc < 0 || crtc >= dev->num_crtcs) {
 797                 DRM_ERROR("Invalid crtc %d\n", crtc);
 798                 return -EINVAL;
 799         }
 800
 801         /* Get associated drm_crtc: */
 802         drmcrtc = &rdev->mode_info.crtcs[crtc]->base;
 803         if (!drmcrtc)
 804                 return -EINVAL;
 805
 806         /* Helper routine in DRM core does all the work: */
 807         return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc, max_error,
 808                                                      vblank_time, flags,
 809                                                      drmcrtc, &drmcrtc->hwmode);
 810 }
 811
 812 #define KMS_INVALID_IOCTL(name)                                         \
 813 static int name(struct drm_device *dev, void *data, struct drm_file     \
 814                 *file_priv)                                             \
 815 {                                                                       \
 816         DRM_ERROR("invalid ioctl with kms %s\n", __func__);             \
 817         return -EINVAL;                                                 \
 818 }
 819
 820 /*
 821  * All these ioctls are invalid in kms world.
 822  */
 823 KMS_INVALID_IOCTL(radeon_cp_init_kms)
 824 KMS_INVALID_IOCTL(radeon_cp_start_kms)
 825 KMS_INVALID_IOCTL(radeon_cp_stop_kms)
 826 KMS_INVALID_IOCTL(radeon_cp_reset_kms)
 827 KMS_INVALID_IOCTL(radeon_cp_idle_kms)
 828 KMS_INVALID_IOCTL(radeon_cp_resume_kms)
 829 KMS_INVALID_IOCTL(radeon_engine_reset_kms)
 830 KMS_INVALID_IOCTL(radeon_fullscreen_kms)
 831 KMS_INVALID_IOCTL(radeon_cp_swap_kms)
 832 KMS_INVALID_IOCTL(radeon_cp_clear_kms)
 833 KMS_INVALID_IOCTL(radeon_cp_vertex_kms)
 834 KMS_INVALID_IOCTL(radeon_cp_indices_kms)
 835 KMS_INVALID_IOCTL(radeon_cp_texture_kms)
 836 KMS_INVALID_IOCTL(radeon_cp_stipple_kms)
 837 KMS_INVALID_IOCTL(radeon_cp_indirect_kms)
 838 KMS_INVALID_IOCTL(radeon_cp_vertex2_kms)
 839 KMS_INVALID_IOCTL(radeon_cp_cmdbuf_kms)
 840 KMS_INVALID_IOCTL(radeon_cp_getparam_kms)
 841 KMS_INVALID_IOCTL(radeon_cp_flip_kms)
 842 KMS_INVALID_IOCTL(radeon_mem_alloc_kms)
 843 KMS_INVALID_IOCTL(radeon_mem_free_kms)
 844 KMS_INVALID_IOCTL(radeon_mem_init_heap_kms)
 845 KMS_INVALID_IOCTL(radeon_irq_emit_kms)
 846 KMS_INVALID_IOCTL(radeon_irq_wait_kms)
 847 KMS_INVALID_IOCTL(radeon_cp_setparam_kms)
 848 KMS_INVALID_IOCTL(radeon_surface_alloc_kms)
 849 KMS_INVALID_IOCTL(radeon_surface_free_kms)
 850
 851
 852 const struct drm_ioctl_desc radeon_ioctls_kms[] = {
 853         DRM_IOCTL_DEF_DRV(RADEON_CP_INIT, radeon_cp_init_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 854         DRM_IOCTL_DEF_DRV(RADEON_CP_START, radeon_cp_start_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 855         DRM_IOCTL_DEF_DRV(RADEON_CP_STOP, radeon_cp_stop_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 856         DRM_IOCTL_DEF_DRV(RADEON_CP_RESET, radeon_cp_reset_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 857         DRM_IOCTL_DEF_DRV(RADEON_CP_IDLE, radeon_cp_idle_kms, DRM_AUTH),
 858         DRM_IOCTL_DEF_DRV(RADEON_CP_RESUME, radeon_cp_resume_kms, DRM_AUTH),
 859         DRM_IOCTL_DEF_DRV(RADEON_RESET, radeon_engine_reset_kms, DRM_AUTH),
 860         DRM_IOCTL_DEF_DRV(RADEON_FULLSCREEN, radeon_fullscreen_kms, DRM_AUTH),
 861         DRM_IOCTL_DEF_DRV(RADEON_SWAP, radeon_cp_swap_kms, DRM_AUTH),
 862         DRM_IOCTL_DEF_DRV(RADEON_CLEAR, radeon_cp_clear_kms, DRM_AUTH),
 863         DRM_IOCTL_DEF_DRV(RADEON_VERTEX, radeon_cp_vertex_kms, DRM_AUTH),
 864         DRM_IOCTL_DEF_DRV(RADEON_INDICES, radeon_cp_indices_kms, DRM_AUTH),
 865         DRM_IOCTL_DEF_DRV(RADEON_TEXTURE, radeon_cp_texture_kms, DRM_AUTH),
 866         DRM_IOCTL_DEF_DRV(RADEON_STIPPLE, radeon_cp_stipple_kms, DRM_AUTH),
 867         DRM_IOCTL_DEF_DRV(RADEON_INDIRECT, radeon_cp_indirect_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 868         DRM_IOCTL_DEF_DRV(RADEON_VERTEX2, radeon_cp_vertex2_kms, DRM_AUTH),
 869         DRM_IOCTL_DEF_DRV(RADEON_CMDBUF, radeon_cp_cmdbuf_kms, DRM_AUTH),
 870         DRM_IOCTL_DEF_DRV(RADEON_GETPARAM, radeon_cp_getparam_kms, DRM_AUTH),
 871         DRM_IOCTL_DEF_DRV(RADEON_FLIP, radeon_cp_flip_kms, DRM_AUTH),
 872         DRM_IOCTL_DEF_DRV(RADEON_ALLOC, radeon_mem_alloc_kms, DRM_AUTH),
 873         DRM_IOCTL_DEF_DRV(RADEON_FREE, radeon_mem_free_kms, DRM_AUTH),
 874         DRM_IOCTL_DEF_DRV(RADEON_INIT_HEAP, radeon_mem_init_heap_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 875         DRM_IOCTL_DEF_DRV(RADEON_IRQ_EMIT, radeon_irq_emit_kms, DRM_AUTH),
 876         DRM_IOCTL_DEF_DRV(RADEON_IRQ_WAIT, radeon_irq_wait_kms, DRM_AUTH),
 877         DRM_IOCTL_DEF_DRV(RADEON_SETPARAM, radeon_cp_setparam_kms, DRM_AUTH),
 878         DRM_IOCTL_DEF_DRV(RADEON_SURF_ALLOC, radeon_surface_alloc_kms, DRM_AUTH),
 879         DRM_IOCTL_DEF_DRV(RADEON_SURF_FREE, radeon_surface_free_kms, DRM_AUTH),
 880         /* KMS */
 881         DRM_IOCTL_DEF_DRV(RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 882         DRM_IOCTL_DEF_DRV(RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 883         DRM_IOCTL_DEF_DRV(RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 884         DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 885         DRM_IOCTL_DEF_DRV(RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH|DRM_UNLOCKED),
 886         DRM_IOCTL_DEF_DRV(RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH|DRM_UNLOCKED),
 887         DRM_IOCTL_DEF_DRV(RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 888         DRM_IOCTL_DEF_DRV(RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 889         DRM_IOCTL_DEF_DRV(RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 890         DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 891         DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 892         DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 893         DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 894         DRM_IOCTL_DEF_DRV(RADEON_GEM_OP, radeon_gem_op_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 895         DRM_IOCTL_DEF_DRV(RADEON_GEM_USERPTR, radeon_gem_userptr_ioctl, DRM_AUTH|DRM_UNLOCKED|DRM_RENDER_ALLOW),
 896 };
 897 int radeon_max_kms_ioctl = ARRAY_SIZE(radeon_ioctls_kms);