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
  36 /**
  37  * radeon_driver_unload_kms - Main unload function for KMS.
  38  *
  39  * @dev: drm dev pointer
  40  *
  41  * This is the main unload function for KMS (all asics).
  42  * It calls radeon_modeset_fini() to tear down the
  43  * displays, and radeon_device_fini() to tear down
  44  * the rest of the device (CP, writeback, etc.).
  45  * Returns 0 on success.
  46  */
  47 int radeon_driver_unload_kms(struct drm_device *dev)
  48 {
  49         struct radeon_device *rdev = dev->dev_private;
  50
  51         if (rdev == NULL)
  52                 return 0;
  53         if (rdev->rmmio == NULL)
  54                 goto done_free;
  55         radeon_acpi_fini(rdev);
  56         radeon_modeset_fini(rdev);
  57         radeon_device_fini(rdev);
  58
  59 done_free:
  60         kfree(rdev);
  61         dev->dev_private = NULL;
  62         return 0;
  63 }
  64
  65 /**
  66  * radeon_driver_load_kms - Main load function for KMS.
  67  *
  68  * @dev: drm dev pointer
  69  * @flags: device flags
  70  *
  71  * This is the main load function for KMS (all asics).
  72  * It calls radeon_device_init() to set up the non-display
  73  * parts of the chip (asic init, CP, writeback, etc.), and
  74  * radeon_modeset_init() to set up the display parts
  75  * (crtcs, encoders, hotplug detect, etc.).
  76  * Returns 0 on success, error on failure.
  77  */
  78 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
  79 {
  80         struct radeon_device *rdev;
  81         int r, acpi_status;
  82
  83         rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
  84         if (rdev == NULL) {
  85                 return -ENOMEM;
  86         }
  87         dev->dev_private = (void *)rdev;
  88
  89         /* update BUS flag */
  90         if (drm_pci_device_is_agp(dev)) {
  91                 flags |= RADEON_IS_AGP;
  92         } else if (pci_is_pcie(dev->pdev)) {
  93                 flags |= RADEON_IS_PCIE;
  94         } else {
  95                 flags |= RADEON_IS_PCI;
  96         }
  97
  98         /* radeon_device_init should report only fatal error
  99          * like memory allocation failure or iomapping failure,
 100          * or memory manager initialization failure, it must
 101          * properly initialize the GPU MC controller and permit
 102          * VRAM allocation
 103          */
 104         r = radeon_device_init(rdev, dev, dev->pdev, flags);
 105         if (r) {
 106                 dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
 107                 goto out;
 108         }
 109
 110         /* Again modeset_init should fail only on fatal error
 111          * otherwise it should provide enough functionalities
 112          * for shadowfb to run
 113          */
 114         r = radeon_modeset_init(rdev);
 115         if (r)
 116                 dev_err(&dev->pdev->dev, "Fatal error during modeset init\n");
 117
 118         /* Call ACPI methods: require modeset init
 119          * but failure is not fatal
 120          */
 121         if (!r) {
 122                 acpi_status = radeon_acpi_init(rdev);
 123                 if (acpi_status)
 124                 dev_dbg(&dev->pdev->dev,
 125                                 "Error during ACPI methods call\n");
 126         }
 127
 128 out:
 129         if (r)
 130                 radeon_driver_unload_kms(dev);
 131         return r;
 132 }
 133
 134 /**
 135  * radeon_set_filp_rights - Set filp right.
 136  *
 137  * @dev: drm dev pointer
 138  * @owner: drm file
 139  * @applier: drm file
 140  * @value: value
 141  *
 142  * Sets the filp rights for the device (all asics).
 143  */
 144 static void radeon_set_filp_rights(struct drm_device *dev,
 145                                    struct drm_file **owner,
 146                                    struct drm_file *applier,
 147                                    uint32_t *value)
 148 {
 149         mutex_lock(&dev->struct_mutex);
 150         if (*value == 1) {
 151                 /* wants rights */
 152                 if (!*owner)
 153                         *owner = applier;
 154         } else if (*value == 0) {
 155                 /* revokes rights */
 156                 if (*owner == applier)
 157                         *owner = NULL;
 158         }
 159         *value = *owner == applier ? 1 : 0;
 160         mutex_unlock(&dev->struct_mutex);
 161 }
 162
 163 /*
 164  * Userspace get information ioctl
 165  */
 166 /**
 167  * radeon_info_ioctl - answer a device specific request.
 168  *
 169  * @rdev: radeon device pointer
 170  * @data: request object
 171  * @filp: drm filp
 172  *
 173  * This function is used to pass device specific parameters to the userspace
 174  * drivers.  Examples include: pci device id, pipeline parms, tiling params,
 175  * etc. (all asics).
 176  * Returns 0 on success, -EINVAL on failure.
 177  */
 178 int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 179 {
 180         struct radeon_device *rdev = dev->dev_private;
 181         struct drm_radeon_info *info = data;
 182         struct radeon_mode_info *minfo = &rdev->mode_info;
 183         uint32_t *value, value_tmp, *value_ptr, value_size;
 184         uint64_t value64;
 185         struct drm_crtc *crtc;
 186         int i, found;
 187
 188         value_ptr = (uint32_t *)((unsigned long)info->value);
 189         value = &value_tmp;
 190         value_size = sizeof(uint32_t);
 191
 192         switch (info->request) {
 193         case RADEON_INFO_DEVICE_ID:
 194                 *value = dev->pci_device;
 195                 break;
 196         case RADEON_INFO_NUM_GB_PIPES:
 197                 *value = rdev->num_gb_pipes;
 198                 break;
 199         case RADEON_INFO_NUM_Z_PIPES:
 200                 *value = rdev->num_z_pipes;
 201                 break;
 202         case RADEON_INFO_ACCEL_WORKING:
 203                 /* xf86-video-ati 6.13.0 relies on this being false for evergreen */
 204                 if ((rdev->family >= CHIP_CEDAR) && (rdev->family <= CHIP_HEMLOCK))
 205                         *value = false;
 206                 else
 207                         *value = rdev->accel_working;
 208                 break;
 209         case RADEON_INFO_CRTC_FROM_ID:
 210                 if (DRM_COPY_FROM_USER(value, value_ptr, sizeof(uint32_t))) {
 211                         DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 212                         return -EFAULT;
 213                 }
 214                 for (i = 0, found = 0; i < rdev->num_crtc; i++) {
 215                         crtc = (struct drm_crtc *)minfo->crtcs[i];
 216                         if (crtc && crtc->base.id == *value) {
 217                                 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 218                                 *value = radeon_crtc->crtc_id;
 219                                 found = 1;
 220                                 break;
 221                         }
 222                 }
 223                 if (!found) {
 224                         DRM_DEBUG_KMS("unknown crtc id %d\n", *value);
 225                         return -EINVAL;
 226                 }
 227                 break;
 228         case RADEON_INFO_ACCEL_WORKING2:
 229                 *value = rdev->accel_working;
 230                 break;
 231         case RADEON_INFO_TILING_CONFIG:
 232                 if (rdev->family >= CHIP_TAHITI)
 233                         *value = rdev->config.si.tile_config;
 234                 else if (rdev->family >= CHIP_CAYMAN)
 235                         *value = rdev->config.cayman.tile_config;
 236                 else if (rdev->family >= CHIP_CEDAR)
 237                         *value = rdev->config.evergreen.tile_config;
 238                 else if (rdev->family >= CHIP_RV770)
 239                         *value = rdev->config.rv770.tile_config;
 240                 else if (rdev->family >= CHIP_R600)
 241                         *value = rdev->config.r600.tile_config;
 242                 else {
 243                         DRM_DEBUG_KMS("tiling config is r6xx+ only!\n");
 244                         return -EINVAL;
 245                 }
 246                 break;
 247         case RADEON_INFO_WANT_HYPERZ:
 248                 /* The "value" here is both an input and output parameter.
 249                  * If the input value is 1, filp requests hyper-z access.
 250                  * If the input value is 0, filp revokes its hyper-z access.
 251                  *
 252                  * When returning, the value is 1 if filp owns hyper-z access,
 253                  * 0 otherwise. */
 254                 if (DRM_COPY_FROM_USER(value, value_ptr, sizeof(uint32_t))) {
 255                         DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 256                         return -EFAULT;
 257                 }
 258                 if (*value >= 2) {
 259                         DRM_DEBUG_KMS("WANT_HYPERZ: invalid value %d\n", *value);
 260                         return -EINVAL;
 261                 }
 262                 radeon_set_filp_rights(dev, &rdev->hyperz_filp, filp, value);
 263                 break;
 264         case RADEON_INFO_WANT_CMASK:
 265                 /* The same logic as Hyper-Z. */
 266                 if (DRM_COPY_FROM_USER(value, value_ptr, sizeof(uint32_t))) {
 267                         DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 268                         return -EFAULT;
 269                 }
 270                 if (*value >= 2) {
 271                         DRM_DEBUG_KMS("WANT_CMASK: invalid value %d\n", *value);
 272                         return -EINVAL;
 273                 }
 274                 radeon_set_filp_rights(dev, &rdev->cmask_filp, filp, value);
 275                 break;
 276         case RADEON_INFO_CLOCK_CRYSTAL_FREQ:
 277                 /* return clock value in KHz */
 278                 if (rdev->asic->get_xclk)
 279                         *value = radeon_get_xclk(rdev) * 10;
 280                 else
 281                         *value = rdev->clock.spll.reference_freq * 10;
 282                 break;
 283         case RADEON_INFO_NUM_BACKENDS:
 284                 if (rdev->family >= CHIP_TAHITI)
 285                         *value = rdev->config.si.max_backends_per_se *
 286                                 rdev->config.si.max_shader_engines;
 287                 else if (rdev->family >= CHIP_CAYMAN)
 288                         *value = rdev->config.cayman.max_backends_per_se *
 289                                 rdev->config.cayman.max_shader_engines;
 290                 else if (rdev->family >= CHIP_CEDAR)
 291                         *value = rdev->config.evergreen.max_backends;
 292                 else if (rdev->family >= CHIP_RV770)
 293                         *value = rdev->config.rv770.max_backends;
 294                 else if (rdev->family >= CHIP_R600)
 295                         *value = rdev->config.r600.max_backends;
 296                 else {
 297                         return -EINVAL;
 298                 }
 299                 break;
 300         case RADEON_INFO_NUM_TILE_PIPES:
 301                 if (rdev->family >= CHIP_TAHITI)
 302                         *value = rdev->config.si.max_tile_pipes;
 303                 else if (rdev->family >= CHIP_CAYMAN)
 304                         *value = rdev->config.cayman.max_tile_pipes;
 305                 else if (rdev->family >= CHIP_CEDAR)
 306                         *value = rdev->config.evergreen.max_tile_pipes;
 307                 else if (rdev->family >= CHIP_RV770)
 308                         *value = rdev->config.rv770.max_tile_pipes;
 309                 else if (rdev->family >= CHIP_R600)
 310                         *value = rdev->config.r600.max_tile_pipes;
 311                 else {
 312                         return -EINVAL;
 313                 }
 314                 break;
 315         case RADEON_INFO_FUSION_GART_WORKING:
 316                 *value = 1;
 317                 break;
 318         case RADEON_INFO_BACKEND_MAP:
 319                 if (rdev->family >= CHIP_TAHITI)
 320                         *value = rdev->config.si.backend_map;
 321                 else if (rdev->family >= CHIP_CAYMAN)
 322                         *value = rdev->config.cayman.backend_map;
 323                 else if (rdev->family >= CHIP_CEDAR)
 324                         *value = rdev->config.evergreen.backend_map;
 325                 else if (rdev->family >= CHIP_RV770)
 326                         *value = rdev->config.rv770.backend_map;
 327                 else if (rdev->family >= CHIP_R600)
 328                         *value = rdev->config.r600.backend_map;
 329                 else {
 330                         return -EINVAL;
 331                 }
 332                 break;
 333         case RADEON_INFO_VA_START:
 334                 /* this is where we report if vm is supported or not */
 335                 if (rdev->family < CHIP_CAYMAN)
 336                         return -EINVAL;
 337                 *value = RADEON_VA_RESERVED_SIZE;
 338                 break;
 339         case RADEON_INFO_IB_VM_MAX_SIZE:
 340                 /* this is where we report if vm is supported or not */
 341                 if (rdev->family < CHIP_CAYMAN)
 342                         return -EINVAL;
 343                 *value = RADEON_IB_VM_MAX_SIZE;
 344                 break;
 345         case RADEON_INFO_MAX_PIPES:
 346                 if (rdev->family >= CHIP_TAHITI)
 347                         *value = rdev->config.si.max_cu_per_sh;
 348                 else if (rdev->family >= CHIP_CAYMAN)
 349                         *value = rdev->config.cayman.max_pipes_per_simd;
 350                 else if (rdev->family >= CHIP_CEDAR)
 351                         *value = rdev->config.evergreen.max_pipes;
 352                 else if (rdev->family >= CHIP_RV770)
 353                         *value = rdev->config.rv770.max_pipes;
 354                 else if (rdev->family >= CHIP_R600)
 355                         *value = rdev->config.r600.max_pipes;
 356                 else {
 357                         return -EINVAL;
 358                 }
 359                 break;
 360         case RADEON_INFO_TIMESTAMP:
 361                 if (rdev->family < CHIP_R600) {
 362                         DRM_DEBUG_KMS("timestamp is r6xx+ only!\n");
 363                         return -EINVAL;
 364                 }
 365                 value = (uint32_t*)&value64;
 366                 value_size = sizeof(uint64_t);
 367                 value64 = radeon_get_gpu_clock_counter(rdev);
 368                 break;
 369         case RADEON_INFO_MAX_SE:
 370                 if (rdev->family >= CHIP_TAHITI)
 371                         *value = rdev->config.si.max_shader_engines;
 372                 else if (rdev->family >= CHIP_CAYMAN)
 373                         *value = rdev->config.cayman.max_shader_engines;
 374                 else if (rdev->family >= CHIP_CEDAR)
 375                         *value = rdev->config.evergreen.num_ses;
 376                 else
 377                         *value = 1;
 378                 break;
 379         case RADEON_INFO_MAX_SH_PER_SE:
 380                 if (rdev->family >= CHIP_TAHITI)
 381                         *value = rdev->config.si.max_sh_per_se;
 382                 else
 383                         return -EINVAL;
 384                 break;
 385         case RADEON_INFO_FASTFB_WORKING:
 386                 *value = rdev->fastfb_working;
 387                 break;
 388         case RADEON_INFO_RING_WORKING:
 389                 if (DRM_COPY_FROM_USER(value, value_ptr, sizeof(uint32_t))) {
 390                         DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 391                         return -EFAULT;
 392                 }
 393                 switch (*value) {
 394                 case RADEON_CS_RING_GFX:
 395                 case RADEON_CS_RING_COMPUTE:
 396                         *value = rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready;
 397                         break;
 398                 case RADEON_CS_RING_DMA:
 399                         *value = rdev->ring[R600_RING_TYPE_DMA_INDEX].ready;
 400                         *value |= rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready;
 401                         break;
 402                 case RADEON_CS_RING_UVD:
 403                         *value = rdev->ring[R600_RING_TYPE_UVD_INDEX].ready;
 404                         break;
 405                 default:
 406                         return -EINVAL;
 407                 }
 408                 break;
 409         case RADEON_INFO_SI_TILE_MODE_ARRAY:
 410                 if (rdev->family < CHIP_TAHITI) {
 411                         DRM_DEBUG_KMS("tile mode array is si only!\n");
 412                         return -EINVAL;
 413                 }
 414                 value = rdev->config.si.tile_mode_array;
 415                 value_size = sizeof(uint32_t)*32;
 416                 break;
 417         default:
 418                 DRM_DEBUG_KMS("Invalid request %d\n", info->request);
 419                 return -EINVAL;
 420         }
 421         if (DRM_COPY_TO_USER(value_ptr, (char*)value, value_size)) {
 422                 DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);
 423                 return -EFAULT;
 424         }
 425         return 0;
 426 }
 427
 428
 429 /*
 430  * Outdated mess for old drm with Xorg being in charge (void function now).
 431  */
 432 /**
 433  * radeon_driver_firstopen_kms - drm callback for first open
 434  *
 435  * @dev: drm dev pointer
 436  *
 437  * Nothing to be done for KMS (all asics).
 438  * Returns 0 on success.
 439  */
 440 int radeon_driver_firstopen_kms(struct drm_device *dev)
 441 {
 442         return 0;
 443 }
 444
 445 /**
 446  * radeon_driver_firstopen_kms - drm callback for last close
 447  *
 448  * @dev: drm dev pointer
 449  *
 450  * Switch vga switcheroo state after last close (all asics).
 451  */
 452 void radeon_driver_lastclose_kms(struct drm_device *dev)
 453 {
 454         vga_switcheroo_process_delayed_switch();
 455 }
 456
 457 /**
 458  * radeon_driver_open_kms - drm callback for open
 459  *
 460  * @dev: drm dev pointer
 461  * @file_priv: drm file
 462  *
 463  * On device open, init vm on cayman+ (all asics).
 464  * Returns 0 on success, error on failure.
 465  */
 466 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 467 {
 468         struct radeon_device *rdev = dev->dev_private;
 469
 470         file_priv->driver_priv = NULL;
 471
 472         /* new gpu have virtual address space support */
 473         if (rdev->family >= CHIP_CAYMAN) {
 474                 struct radeon_fpriv *fpriv;
 475                 struct radeon_bo_va *bo_va;
 476                 int r;
 477
 478                 fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
 479                 if (unlikely(!fpriv)) {
 480                         return -ENOMEM;
 481                 }
 482
 483                 radeon_vm_init(rdev, &fpriv->vm);
 484
 485                 /* map the ib pool buffer read only into
 486                  * virtual address space */
 487                 bo_va = radeon_vm_bo_add(rdev, &fpriv->vm,
 488                                          rdev->ring_tmp_bo.bo);
 489                 r = radeon_vm_bo_set_addr(rdev, bo_va, RADEON_VA_IB_OFFSET,
 490                                           RADEON_VM_PAGE_READABLE |
 491                                           RADEON_VM_PAGE_SNOOPED);
 492                 if (r) {
 493                         radeon_vm_fini(rdev, &fpriv->vm);
 494                         kfree(fpriv);
 495                         return r;
 496                 }
 497
 498                 file_priv->driver_priv = fpriv;
 499         }
 500         return 0;
 501 }
 502
 503 /**
 504  * radeon_driver_postclose_kms - drm callback for post close
 505  *
 506  * @dev: drm dev pointer
 507  * @file_priv: drm file
 508  *
 509  * On device post close, tear down vm on cayman+ (all asics).
 510  */
 511 void radeon_driver_postclose_kms(struct drm_device *dev,
 512                                  struct drm_file *file_priv)
 513 {
 514         struct radeon_device *rdev = dev->dev_private;
 515
 516         /* new gpu have virtual address space support */
 517         if (rdev->family >= CHIP_CAYMAN && file_priv->driver_priv) {
 518                 struct radeon_fpriv *fpriv = file_priv->driver_priv;
 519                 struct radeon_bo_va *bo_va;
 520                 int r;
 521
 522                 r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
 523                 if (!r) {
 524                         bo_va = radeon_vm_bo_find(&fpriv->vm,
 525                                                   rdev->ring_tmp_bo.bo);
 526                         if (bo_va)
 527                                 radeon_vm_bo_rmv(rdev, bo_va);
 528                         radeon_bo_unreserve(rdev->ring_tmp_bo.bo);
 529                 }
 530
 531                 radeon_vm_fini(rdev, &fpriv->vm);
 532                 kfree(fpriv);
 533                 file_priv->driver_priv = NULL;
 534         }
 535 }
 536
 537 /**
 538  * radeon_driver_preclose_kms - drm callback for pre close
 539  *
 540  * @dev: drm dev pointer
 541  * @file_priv: drm file
 542  *
 543  * On device pre close, tear down hyperz and cmask filps on r1xx-r5xx
 544  * (all asics).
 545  */
 546 void radeon_driver_preclose_kms(struct drm_device *dev,
 547                                 struct drm_file *file_priv)
 548 {
 549         struct radeon_device *rdev = dev->dev_private;
 550         if (rdev->hyperz_filp == file_priv)
 551                 rdev->hyperz_filp = NULL;
 552         if (rdev->cmask_filp == file_priv)
 553                 rdev->cmask_filp = NULL;
 554         radeon_uvd_free_handles(rdev, file_priv);
 555 }
 556
 557 /*
 558  * VBlank related functions.
 559  */
 560 /**
 561  * radeon_get_vblank_counter_kms - get frame count
 562  *
 563  * @dev: drm dev pointer
 564  * @crtc: crtc to get the frame count from
 565  *
 566  * Gets the frame count on the requested crtc (all asics).
 567  * Returns frame count on success, -EINVAL on failure.
 568  */
 569 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
 570 {
 571         struct radeon_device *rdev = dev->dev_private;
 572
 573         if (crtc < 0 || crtc >= rdev->num_crtc) {
 574                 DRM_ERROR("Invalid crtc %d\n", crtc);
 575                 return -EINVAL;
 576         }
 577
 578         return radeon_get_vblank_counter(rdev, crtc);
 579 }
 580
 581 /**
 582  * radeon_enable_vblank_kms - enable vblank interrupt
 583  *
 584  * @dev: drm dev pointer
 585  * @crtc: crtc to enable vblank interrupt for
 586  *
 587  * Enable the interrupt on the requested crtc (all asics).
 588  * Returns 0 on success, -EINVAL on failure.
 589  */
 590 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
 591 {
 592         struct radeon_device *rdev = dev->dev_private;
 593         unsigned long irqflags;
 594         int r;
 595
 596         if (crtc < 0 || crtc >= rdev->num_crtc) {
 597                 DRM_ERROR("Invalid crtc %d\n", crtc);
 598                 return -EINVAL;
 599         }
 600
 601         spin_lock_irqsave(&rdev->irq.lock, irqflags);
 602         rdev->irq.crtc_vblank_int[crtc] = true;
 603         r = radeon_irq_set(rdev);
 604         spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
 605         return r;
 606 }
 607
 608 /**
 609  * radeon_disable_vblank_kms - disable vblank interrupt
 610  *
 611  * @dev: drm dev pointer
 612  * @crtc: crtc to disable vblank interrupt for
 613  *
 614  * Disable the interrupt on the requested crtc (all asics).
 615  */
 616 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
 617 {
 618         struct radeon_device *rdev = dev->dev_private;
 619         unsigned long irqflags;
 620
 621         if (crtc < 0 || crtc >= rdev->num_crtc) {
 622                 DRM_ERROR("Invalid crtc %d\n", crtc);
 623                 return;
 624         }
 625
 626         spin_lock_irqsave(&rdev->irq.lock, irqflags);
 627         rdev->irq.crtc_vblank_int[crtc] = false;
 628         radeon_irq_set(rdev);
 629         spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
 630 }
 631
 632 /**
 633  * radeon_get_vblank_timestamp_kms - get vblank timestamp
 634  *
 635  * @dev: drm dev pointer
 636  * @crtc: crtc to get the timestamp for
 637  * @max_error: max error
 638  * @vblank_time: time value
 639  * @flags: flags passed to the driver
 640  *
 641  * Gets the timestamp on the requested crtc based on the
 642  * scanout position.  (all asics).
 643  * Returns postive status flags on success, negative error on failure.
 644  */
 645 int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
 646                                     int *max_error,
 647                                     struct timeval *vblank_time,
 648                                     unsigned flags)
 649 {
 650         struct drm_crtc *drmcrtc;
 651         struct radeon_device *rdev = dev->dev_private;
 652
 653         if (crtc < 0 || crtc >= dev->num_crtcs) {
 654                 DRM_ERROR("Invalid crtc %d\n", crtc);
 655                 return -EINVAL;
 656         }
 657
 658         /* Get associated drm_crtc: */
 659         drmcrtc = &rdev->mode_info.crtcs[crtc]->base;
 660
 661         /* Helper routine in DRM core does all the work: */
 662         return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc, max_error,
 663                                                      vblank_time, flags,
 664                                                      drmcrtc);
 665 }
 666
 667 /*
 668  * IOCTL.
 669  */
 670 int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
 671                          struct drm_file *file_priv)
 672 {
 673         /* Not valid in KMS. */
 674         return -EINVAL;
 675 }
 676
 677 #define KMS_INVALID_IOCTL(name)                                         \
 678 int name(struct drm_device *dev, void *data, struct drm_file *file_priv)\
 679 {                                                                       \
 680         DRM_ERROR("invalid ioctl with kms %s\n", __func__);             \
 681         return -EINVAL;                                                 \
 682 }
 683
 684 /*
 685  * All these ioctls are invalid in kms world.
 686  */
 687 KMS_INVALID_IOCTL(radeon_cp_init_kms)
 688 KMS_INVALID_IOCTL(radeon_cp_start_kms)
 689 KMS_INVALID_IOCTL(radeon_cp_stop_kms)
 690 KMS_INVALID_IOCTL(radeon_cp_reset_kms)
 691 KMS_INVALID_IOCTL(radeon_cp_idle_kms)
 692 KMS_INVALID_IOCTL(radeon_cp_resume_kms)
 693 KMS_INVALID_IOCTL(radeon_engine_reset_kms)
 694 KMS_INVALID_IOCTL(radeon_fullscreen_kms)
 695 KMS_INVALID_IOCTL(radeon_cp_swap_kms)
 696 KMS_INVALID_IOCTL(radeon_cp_clear_kms)
 697 KMS_INVALID_IOCTL(radeon_cp_vertex_kms)
 698 KMS_INVALID_IOCTL(radeon_cp_indices_kms)
 699 KMS_INVALID_IOCTL(radeon_cp_texture_kms)
 700 KMS_INVALID_IOCTL(radeon_cp_stipple_kms)
 701 KMS_INVALID_IOCTL(radeon_cp_indirect_kms)
 702 KMS_INVALID_IOCTL(radeon_cp_vertex2_kms)
 703 KMS_INVALID_IOCTL(radeon_cp_cmdbuf_kms)
 704 KMS_INVALID_IOCTL(radeon_cp_getparam_kms)
 705 KMS_INVALID_IOCTL(radeon_cp_flip_kms)
 706 KMS_INVALID_IOCTL(radeon_mem_alloc_kms)
 707 KMS_INVALID_IOCTL(radeon_mem_free_kms)
 708 KMS_INVALID_IOCTL(radeon_mem_init_heap_kms)
 709 KMS_INVALID_IOCTL(radeon_irq_emit_kms)
 710 KMS_INVALID_IOCTL(radeon_irq_wait_kms)
 711 KMS_INVALID_IOCTL(radeon_cp_setparam_kms)
 712 KMS_INVALID_IOCTL(radeon_surface_alloc_kms)
 713 KMS_INVALID_IOCTL(radeon_surface_free_kms)
 714
 715
 716 struct drm_ioctl_desc radeon_ioctls_kms[] = {
 717         DRM_IOCTL_DEF_DRV(RADEON_CP_INIT, radeon_cp_init_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 718         DRM_IOCTL_DEF_DRV(RADEON_CP_START, radeon_cp_start_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 719         DRM_IOCTL_DEF_DRV(RADEON_CP_STOP, radeon_cp_stop_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 720         DRM_IOCTL_DEF_DRV(RADEON_CP_RESET, radeon_cp_reset_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 721         DRM_IOCTL_DEF_DRV(RADEON_CP_IDLE, radeon_cp_idle_kms, DRM_AUTH),
 722         DRM_IOCTL_DEF_DRV(RADEON_CP_RESUME, radeon_cp_resume_kms, DRM_AUTH),
 723         DRM_IOCTL_DEF_DRV(RADEON_RESET, radeon_engine_reset_kms, DRM_AUTH),
 724         DRM_IOCTL_DEF_DRV(RADEON_FULLSCREEN, radeon_fullscreen_kms, DRM_AUTH),
 725         DRM_IOCTL_DEF_DRV(RADEON_SWAP, radeon_cp_swap_kms, DRM_AUTH),
 726         DRM_IOCTL_DEF_DRV(RADEON_CLEAR, radeon_cp_clear_kms, DRM_AUTH),
 727         DRM_IOCTL_DEF_DRV(RADEON_VERTEX, radeon_cp_vertex_kms, DRM_AUTH),
 728         DRM_IOCTL_DEF_DRV(RADEON_INDICES, radeon_cp_indices_kms, DRM_AUTH),
 729         DRM_IOCTL_DEF_DRV(RADEON_TEXTURE, radeon_cp_texture_kms, DRM_AUTH),
 730         DRM_IOCTL_DEF_DRV(RADEON_STIPPLE, radeon_cp_stipple_kms, DRM_AUTH),
 731         DRM_IOCTL_DEF_DRV(RADEON_INDIRECT, radeon_cp_indirect_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 732         DRM_IOCTL_DEF_DRV(RADEON_VERTEX2, radeon_cp_vertex2_kms, DRM_AUTH),
 733         DRM_IOCTL_DEF_DRV(RADEON_CMDBUF, radeon_cp_cmdbuf_kms, DRM_AUTH),
 734         DRM_IOCTL_DEF_DRV(RADEON_GETPARAM, radeon_cp_getparam_kms, DRM_AUTH),
 735         DRM_IOCTL_DEF_DRV(RADEON_FLIP, radeon_cp_flip_kms, DRM_AUTH),
 736         DRM_IOCTL_DEF_DRV(RADEON_ALLOC, radeon_mem_alloc_kms, DRM_AUTH),
 737         DRM_IOCTL_DEF_DRV(RADEON_FREE, radeon_mem_free_kms, DRM_AUTH),
 738         DRM_IOCTL_DEF_DRV(RADEON_INIT_HEAP, radeon_mem_init_heap_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 739         DRM_IOCTL_DEF_DRV(RADEON_IRQ_EMIT, radeon_irq_emit_kms, DRM_AUTH),
 740         DRM_IOCTL_DEF_DRV(RADEON_IRQ_WAIT, radeon_irq_wait_kms, DRM_AUTH),
 741         DRM_IOCTL_DEF_DRV(RADEON_SETPARAM, radeon_cp_setparam_kms, DRM_AUTH),
 742         DRM_IOCTL_DEF_DRV(RADEON_SURF_ALLOC, radeon_surface_alloc_kms, DRM_AUTH),
 743         DRM_IOCTL_DEF_DRV(RADEON_SURF_FREE, radeon_surface_free_kms, DRM_AUTH),
 744         /* KMS */
 745         DRM_IOCTL_DEF_DRV(RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
 746         DRM_IOCTL_DEF_DRV(RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_UNLOCKED),
 747         DRM_IOCTL_DEF_DRV(RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_UNLOCKED),
 748         DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_UNLOCKED),
 749         DRM_IOCTL_DEF_DRV(RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH|DRM_UNLOCKED),
 750         DRM_IOCTL_DEF_DRV(RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH|DRM_UNLOCKED),
 751         DRM_IOCTL_DEF_DRV(RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_UNLOCKED),
 752         DRM_IOCTL_DEF_DRV(RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_UNLOCKED),
 753         DRM_IOCTL_DEF_DRV(RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
 754         DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 755         DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 756         DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
 757         DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_UNLOCKED),
 758 };
 759 int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms);