sys/dev/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  * $FreeBSD: head/sys/dev/drm2/radeon/radeon_kms.c 254885 2013-08-25 19:37:15Z dumbbell $
  29  */
  30
  31 #include <drm/drmP.h>
  32 #include "radeon.h"
  33 #include <uapi_drm/radeon_drm.h>
  34 #include "radeon_asic.h"
  35 #include "radeon_kms.h"
  36
  37 /**
  38  * radeon_driver_unload_kms - Main unload function for KMS.
  39  *
  40  * @dev: drm dev pointer
  41  *
  42  * This is the main unload function for KMS (all asics).
  43  * It calls radeon_modeset_fini() to tear down the
  44  * displays, and radeon_device_fini() to tear down
  45  * the rest of the device (CP, writeback, etc.).
  46  * Returns 0 on success.
  47  */
  48 int radeon_driver_unload_kms(struct drm_device *dev)
  49 {
  50         struct radeon_device *rdev = dev->dev_private;
  51
  52         if (rdev == NULL)
  53                 return 0;
  54         radeon_acpi_fini(rdev);
  55         radeon_modeset_fini(rdev);
  56         radeon_device_fini(rdev);
  57         drm_free(rdev, DRM_MEM_DRIVER);
  58         dev->dev_private = NULL;
  59         return 0;
  60 }
  61
  62 /**
  63  * radeon_driver_load_kms - Main load function for KMS.
  64  *
  65  * @dev: drm dev pointer
  66  * @flags: device flags
  67  *
  68  * This is the main load function for KMS (all asics).
  69  * It calls radeon_device_init() to set up the non-display
  70  * parts of the chip (asic init, CP, writeback, etc.), and
  71  * radeon_modeset_init() to set up the display parts
  72  * (crtcs, encoders, hotplug detect, etc.).
  73  * Returns 0 on success, error on failure.
  74  */
  75 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
  76 {
  77         struct radeon_device *rdev;
  78         int r, acpi_status;
  79
  80         rdev = kmalloc(sizeof(struct radeon_device), DRM_MEM_DRIVER,
  81                        M_ZERO | M_WAITOK);
  82         if (rdev == NULL) {
  83                 return -ENOMEM;
  84         }
  85         dev->dev_private = (void *)rdev;
  86
  87         /* update BUS flag */
  88         if (drm_device_is_agp(dev)) {
  89                 DRM_INFO("RADEON_IS_AGP\n");
  90                 flags |= RADEON_IS_AGP;
  91         } else if (drm_device_is_pcie(dev)) {
  92                 DRM_INFO("RADEON_IS_PCIE\n");
  93                 flags |= RADEON_IS_PCIE;
  94         } else {
  95                 DRM_INFO("RADEON_IS_PCI\n");
  96                 flags |= RADEON_IS_PCI;
  97         }
  98
  99         /* radeon_device_init should report only fatal error
 100          * like memory allocation failure or iomapping failure,
 101          * or memory manager initialization failure, it must
 102          * properly initialize the GPU MC controller and permit
 103          * VRAM allocation
 104          */
 105         r = radeon_device_init(rdev, dev, flags);
 106         if (r) {
 107                 dev_err(dev->device, "Fatal error during GPU init\n");
 108                 goto out;
 109         }
 110
 111         /* Again modeset_init should fail only on fatal error
 112          * otherwise it should provide enough functionalities
 113          * for shadowfb to run
 114          */
 115         r = radeon_modeset_init(rdev);
 116         if (r)
 117                 dev_err(dev->device, "Fatal error during modeset init\n");
 118
 119         /* Call ACPI methods: require modeset init
 120          * but failure is not fatal
 121          */
 122         if (!r) {
 123                 acpi_status = radeon_acpi_init(rdev);
 124                 if (acpi_status)
 125                 dev_dbg(dev->device,
 126                                 "Error during ACPI methods call\n");
 127         }
 128
 129 out:
 130         if (r)
 131                 radeon_driver_unload_kms(dev);
 132         return r;
 133 }
 134
 135 /**
 136  * radeon_set_filp_rights - Set filp right.
 137  *
 138  * @dev: drm dev pointer
 139  * @owner: drm file
 140  * @applier: drm file
 141  * @value: value
 142  *
 143  * Sets the filp rights for the device (all asics).
 144  */
 145 static void radeon_set_filp_rights(struct drm_device *dev,
 146                                    struct drm_file **owner,
 147                                    struct drm_file *applier,
 148                                    uint32_t *value)
 149 {
 150         DRM_LOCK(dev);
 151         if (*value == 1) {
 152                 /* wants rights */
 153                 if (!*owner)
 154                         *owner = applier;
 155         } else if (*value == 0) {
 156                 /* revokes rights */
 157                 if (*owner == applier)
 158                         *owner = NULL;
 159         }
 160         *value = *owner == applier ? 1 : 0;
 161         DRM_UNLOCK(dev);
 162 }
 163
 164 /*
 165  * Userspace get information ioctl
 166  */
 167 /**
 168  * radeon_info_ioctl - answer a device specific request.
 169  *
 170  * @rdev: radeon device pointer
 171  * @data: request object
 172  * @filp: drm filp
 173  *
 174  * This function is used to pass device specific parameters to the userspace
 175  * drivers.  Examples include: pci device id, pipeline parms, tiling params,
 176  * etc. (all asics).
 177  * Returns 0 on success, -EINVAL on failure.
 178  */
 179 static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 180 {
 181         struct radeon_device *rdev = dev->dev_private;
 182         struct drm_radeon_info *info = data;
 183         struct radeon_mode_info *minfo = &rdev->mode_info;
 184         uint32_t value, *value_ptr;
 185         uint64_t value64, *value_ptr64;
 186         struct drm_crtc *crtc;
 187         int i, found;
 188
 189         /* TIMESTAMP is a 64-bit value, needs special handling. */
 190         if (info->request == RADEON_INFO_TIMESTAMP) {
 191                 if (rdev->family >= CHIP_R600) {
 192                         value_ptr64 = (uint64_t*)((unsigned long)info->value);
 193                         if (rdev->family >= CHIP_TAHITI) {
 194                                 value64 = si_get_gpu_clock(rdev);
 195                         } else {
 196                                 value64 = r600_get_gpu_clock(rdev);
 197                         }
 198
 199                         if (DRM_COPY_TO_USER(value_ptr64, &value64, sizeof(value64))) {
 200                                 DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);
 201                                 return -EFAULT;
 202                         }
 203                         return 0;
 204                 } else {
 205                         DRM_DEBUG_KMS("timestamp is r6xx+ only!\n");
 206                         return -EINVAL;
 207                 }
 208         }
 209
 210         value_ptr = (uint32_t *)((unsigned long)info->value);
 211         if (DRM_COPY_FROM_USER(&value, value_ptr, sizeof(value))) {
 212                 DRM_ERROR("copy_from_user %s:%u\n", __func__, __LINE__);
 213                 return -EFAULT;
 214         }
 215
 216         switch (info->request) {
 217         case RADEON_INFO_DEVICE_ID:
 218                 value = dev->pci_device;
 219                 break;
 220         case RADEON_INFO_NUM_GB_PIPES:
 221                 value = rdev->num_gb_pipes;
 222                 break;
 223         case RADEON_INFO_NUM_Z_PIPES:
 224                 value = rdev->num_z_pipes;
 225                 break;
 226         case RADEON_INFO_ACCEL_WORKING:
 227                 /* xf86-video-ati 6.13.0 relies on this being false for evergreen */
 228                 if ((rdev->family >= CHIP_CEDAR) && (rdev->family <= CHIP_HEMLOCK))
 229                         value = false;
 230                 else
 231                         value = rdev->accel_working;
 232                 break;
 233         case RADEON_INFO_CRTC_FROM_ID:
 234                 for (i = 0, found = 0; i < rdev->num_crtc; i++) {
 235                         crtc = (struct drm_crtc *)minfo->crtcs[i];
 236                         if (crtc && crtc->base.id == value) {
 237                                 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 238                                 value = radeon_crtc->crtc_id;
 239                                 found = 1;
 240                                 break;
 241                         }
 242                 }
 243                 if (!found) {
 244                         DRM_DEBUG_KMS("unknown crtc id %d\n", value);
 245                         return -EINVAL;
 246                 }
 247                 break;
 248         case RADEON_INFO_ACCEL_WORKING2:
 249                 value = rdev->accel_working;
 250                 break;
 251         case RADEON_INFO_TILING_CONFIG:
 252                 if (rdev->family >= CHIP_TAHITI)
 253                         value = rdev->config.si.tile_config;
 254                 else if (rdev->family >= CHIP_CAYMAN)
 255                         value = rdev->config.cayman.tile_config;
 256                 else if (rdev->family >= CHIP_CEDAR)
 257                         value = rdev->config.evergreen.tile_config;
 258                 else if (rdev->family >= CHIP_RV770)
 259                         value = rdev->config.rv770.tile_config;
 260                 else if (rdev->family >= CHIP_R600)
 261                         value = rdev->config.r600.tile_config;
 262                 else {
 263                         DRM_DEBUG_KMS("tiling config is r6xx+ only!\n");
 264                         return -EINVAL;
 265                 }
 266                 break;
 267         case RADEON_INFO_WANT_HYPERZ:
 268                 /* The "value" here is both an input and output parameter.
 269                  * If the input value is 1, filp requests hyper-z access.
 270                  * If the input value is 0, filp revokes its hyper-z access.
 271                  *
 272                  * When returning, the value is 1 if filp owns hyper-z access,
 273                  * 0 otherwise. */
 274                 if (value >= 2) {
 275                         DRM_DEBUG_KMS("WANT_HYPERZ: invalid value %d\n", value);
 276                         return -EINVAL;
 277                 }
 278                 radeon_set_filp_rights(dev, &rdev->hyperz_filp, filp, &value);
 279                 break;
 280         case RADEON_INFO_WANT_CMASK:
 281                 /* The same logic as Hyper-Z. */
 282                 if (value >= 2) {
 283                         DRM_DEBUG_KMS("WANT_CMASK: invalid value %d\n", value);
 284                         return -EINVAL;
 285                 }
 286                 radeon_set_filp_rights(dev, &rdev->cmask_filp, filp, &value);
 287                 break;
 288         case RADEON_INFO_CLOCK_CRYSTAL_FREQ:
 289                 /* return clock value in KHz */
 290                 value = rdev->clock.spll.reference_freq * 10;
 291                 break;
 292         case RADEON_INFO_NUM_BACKENDS:
 293                 if (rdev->family >= CHIP_TAHITI)
 294                         value = rdev->config.si.max_backends_per_se *
 295                                 rdev->config.si.max_shader_engines;
 296                 else if (rdev->family >= CHIP_CAYMAN)
 297                         value = rdev->config.cayman.max_backends_per_se *
 298                                 rdev->config.cayman.max_shader_engines;
 299                 else if (rdev->family >= CHIP_CEDAR)
 300                         value = rdev->config.evergreen.max_backends;
 301                 else if (rdev->family >= CHIP_RV770)
 302                         value = rdev->config.rv770.max_backends;
 303                 else if (rdev->family >= CHIP_R600)
 304                         value = rdev->config.r600.max_backends;
 305                 else {
 306                         return -EINVAL;
 307                 }
 308                 break;
 309         case RADEON_INFO_NUM_TILE_PIPES:
 310                 if (rdev->family >= CHIP_TAHITI)
 311                         value = rdev->config.si.max_tile_pipes;
 312                 else if (rdev->family >= CHIP_CAYMAN)
 313                         value = rdev->config.cayman.max_tile_pipes;
 314                 else if (rdev->family >= CHIP_CEDAR)
 315                         value = rdev->config.evergreen.max_tile_pipes;
 316                 else if (rdev->family >= CHIP_RV770)
 317                         value = rdev->config.rv770.max_tile_pipes;
 318                 else if (rdev->family >= CHIP_R600)
 319                         value = rdev->config.r600.max_tile_pipes;
 320                 else {
 321                         return -EINVAL;
 322                 }
 323                 break;
 324         case RADEON_INFO_FUSION_GART_WORKING:
 325                 value = 1;
 326                 break;
 327         case RADEON_INFO_BACKEND_MAP:
 328                 if (rdev->family >= CHIP_TAHITI)
 329                         value = rdev->config.si.backend_map;
 330                 else if (rdev->family >= CHIP_CAYMAN)
 331                         value = rdev->config.cayman.backend_map;
 332                 else if (rdev->family >= CHIP_CEDAR)
 333                         value = rdev->config.evergreen.backend_map;
 334                 else if (rdev->family >= CHIP_RV770)
 335                         value = rdev->config.rv770.backend_map;
 336                 else if (rdev->family >= CHIP_R600)
 337                         value = rdev->config.r600.backend_map;
 338                 else {
 339                         return -EINVAL;
 340                 }
 341                 break;
 342         case RADEON_INFO_VA_START:
 343                 /* this is where we report if vm is supported or not */
 344                 if (rdev->family < CHIP_CAYMAN)
 345                         return -EINVAL;
 346                 value = RADEON_VA_RESERVED_SIZE;
 347                 break;
 348         case RADEON_INFO_IB_VM_MAX_SIZE:
 349                 /* this is where we report if vm is supported or not */
 350                 if (rdev->family < CHIP_CAYMAN)
 351                         return -EINVAL;
 352                 value = RADEON_IB_VM_MAX_SIZE;
 353                 break;
 354         case RADEON_INFO_MAX_PIPES:
 355                 if (rdev->family >= CHIP_TAHITI)
 356                         value = rdev->config.si.max_cu_per_sh;
 357                 else if (rdev->family >= CHIP_CAYMAN)
 358                         value = rdev->config.cayman.max_pipes_per_simd;
 359                 else if (rdev->family >= CHIP_CEDAR)
 360                         value = rdev->config.evergreen.max_pipes;
 361                 else if (rdev->family >= CHIP_RV770)
 362                         value = rdev->config.rv770.max_pipes;
 363                 else if (rdev->family >= CHIP_R600)
 364                         value = rdev->config.r600.max_pipes;
 365                 else {
 366                         return -EINVAL;
 367                 }
 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         default:
 386                 DRM_DEBUG_KMS("Invalid request %d\n", info->request);
 387                 return -EINVAL;
 388         }
 389         if (DRM_COPY_TO_USER(value_ptr, &value, sizeof(uint32_t))) {
 390                 DRM_ERROR("copy_to_user %s:%u\n", __func__, __LINE__);
 391                 return -EFAULT;
 392         }
 393         return 0;
 394 }
 395
 396
 397 /*
 398  * Outdated mess for old drm with Xorg being in charge (void function now).
 399  */
 400 /**
 401  * radeon_driver_firstopen_kms - drm callback for first open
 402  *
 403  * @dev: drm dev pointer
 404  *
 405  * Nothing to be done for KMS (all asics).
 406  * Returns 0 on success.
 407  */
 408 int radeon_driver_firstopen_kms(struct drm_device *dev)
 409 {
 410         return 0;
 411 }
 412
 413 /**
 414  * radeon_driver_firstopen_kms - drm callback for last close
 415  *
 416  * @dev: drm dev pointer
 417  *
 418  * Switch vga switcheroo state after last close (all asics).
 419  */
 420 void radeon_driver_lastclose_kms(struct drm_device *dev)
 421 {
 422 #ifdef DUMBBELL_WIP
 423         vga_switcheroo_process_delayed_switch();
 424 #endif /* DUMBBELL_WIP */
 425 }
 426
 427 /**
 428  * radeon_driver_open_kms - drm callback for open
 429  *
 430  * @dev: drm dev pointer
 431  * @file_priv: drm file
 432  *
 433  * On device open, init vm on cayman+ (all asics).
 434  * Returns 0 on success, error on failure.
 435  */
 436 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 437 {
 438         struct radeon_device *rdev = dev->dev_private;
 439
 440         file_priv->driver_priv = NULL;
 441
 442         /* new gpu have virtual address space support */
 443         if (rdev->family >= CHIP_CAYMAN) {
 444                 struct radeon_fpriv *fpriv;
 445                 struct radeon_bo_va *bo_va;
 446                 int r;
 447
 448                 fpriv = kmalloc(sizeof(*fpriv), DRM_MEM_DRIVER,
 449                                 M_ZERO | M_WAITOK);
 450                 if (unlikely(!fpriv)) {
 451                         return -ENOMEM;
 452                 }
 453
 454                 radeon_vm_init(rdev, &fpriv->vm);
 455
 456                 /* map the ib pool buffer read only into
 457                  * virtual address space */
 458                 bo_va = radeon_vm_bo_add(rdev, &fpriv->vm,
 459                                          rdev->ring_tmp_bo.bo);
 460                 r = radeon_vm_bo_set_addr(rdev, bo_va, RADEON_VA_IB_OFFSET,
 461                                           RADEON_VM_PAGE_READABLE |
 462                                           RADEON_VM_PAGE_SNOOPED);
 463                 if (r) {
 464                         radeon_vm_fini(rdev, &fpriv->vm);
 465                         drm_free(fpriv, DRM_MEM_DRIVER);
 466                         return r;
 467                 }
 468
 469                 file_priv->driver_priv = fpriv;
 470         }
 471         return 0;
 472 }
 473
 474 /**
 475  * radeon_driver_postclose_kms - drm callback for post close
 476  *
 477  * @dev: drm dev pointer
 478  * @file_priv: drm file
 479  *
 480  * On device post close, tear down vm on cayman+ (all asics).
 481  */
 482 void radeon_driver_postclose_kms(struct drm_device *dev,
 483                                  struct drm_file *file_priv)
 484 {
 485         struct radeon_device *rdev = dev->dev_private;
 486
 487         /* new gpu have virtual address space support */
 488         if (rdev->family >= CHIP_CAYMAN && file_priv->driver_priv) {
 489                 struct radeon_fpriv *fpriv = file_priv->driver_priv;
 490                 struct radeon_bo_va *bo_va;
 491                 int r;
 492
 493                 r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
 494                 if (!r) {
 495                         bo_va = radeon_vm_bo_find(&fpriv->vm,
 496                                                   rdev->ring_tmp_bo.bo);
 497                         if (bo_va)
 498                                 radeon_vm_bo_rmv(rdev, bo_va);
 499                         radeon_bo_unreserve(rdev->ring_tmp_bo.bo);
 500                 }
 501
 502                 radeon_vm_fini(rdev, &fpriv->vm);
 503                 drm_free(fpriv, DRM_MEM_DRIVER);
 504                 file_priv->driver_priv = NULL;
 505         }
 506 }
 507
 508 /**
 509  * radeon_driver_preclose_kms - drm callback for pre close
 510  *
 511  * @dev: drm dev pointer
 512  * @file_priv: drm file
 513  *
 514  * On device pre close, tear down hyperz and cmask filps on r1xx-r5xx
 515  * (all asics).
 516  */
 517 void radeon_driver_preclose_kms(struct drm_device *dev,
 518                                 struct drm_file *file_priv)
 519 {
 520         struct radeon_device *rdev = dev->dev_private;
 521         if (rdev->hyperz_filp == file_priv)
 522                 rdev->hyperz_filp = NULL;
 523         if (rdev->cmask_filp == file_priv)
 524                 rdev->cmask_filp = NULL;
 525 }
 526
 527 /*
 528  * VBlank related functions.
 529  */
 530 /**
 531  * radeon_get_vblank_counter_kms - get frame count
 532  *
 533  * @dev: drm dev pointer
 534  * @crtc: crtc to get the frame count from
 535  *
 536  * Gets the frame count on the requested crtc (all asics).
 537  * Returns frame count on success, -EINVAL on failure.
 538  */
 539 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
 540 {
 541         struct radeon_device *rdev = dev->dev_private;
 542
 543         if (crtc < 0 || crtc >= rdev->num_crtc) {
 544                 DRM_ERROR("Invalid crtc %d\n", crtc);
 545                 return -EINVAL;
 546         }
 547
 548         return radeon_get_vblank_counter(rdev, crtc);
 549 }
 550
 551 /**
 552  * radeon_enable_vblank_kms - enable vblank interrupt
 553  *
 554  * @dev: drm dev pointer
 555  * @crtc: crtc to enable vblank interrupt for
 556  *
 557  * Enable the interrupt on the requested crtc (all asics).
 558  * Returns 0 on success, -EINVAL on failure.
 559  */
 560 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
 561 {
 562         struct radeon_device *rdev = dev->dev_private;
 563         int r;
 564
 565         if (crtc < 0 || crtc >= rdev->num_crtc) {
 566                 DRM_ERROR("Invalid crtc %d\n", crtc);
 567                 return -EINVAL;
 568         }
 569
 570         lockmgr(&rdev->irq.lock, LK_EXCLUSIVE);
 571         rdev->irq.crtc_vblank_int[crtc] = true;
 572         r = radeon_irq_set(rdev);
 573         lockmgr(&rdev->irq.lock, LK_RELEASE);
 574         return r;
 575 }
 576
 577 /**
 578  * radeon_disable_vblank_kms - disable vblank interrupt
 579  *
 580  * @dev: drm dev pointer
 581  * @crtc: crtc to disable vblank interrupt for
 582  *
 583  * Disable the interrupt on the requested crtc (all asics).
 584  */
 585 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
 586 {
 587         struct radeon_device *rdev = dev->dev_private;
 588
 589         if (crtc < 0 || crtc >= rdev->num_crtc) {
 590                 DRM_ERROR("Invalid crtc %d\n", crtc);
 591                 return;
 592         }
 593
 594         lockmgr(&rdev->irq.lock, LK_EXCLUSIVE);
 595         rdev->irq.crtc_vblank_int[crtc] = false;
 596         radeon_irq_set(rdev);
 597         lockmgr(&rdev->irq.lock, LK_RELEASE);
 598 }
 599
 600 /**
 601  * radeon_get_vblank_timestamp_kms - get vblank timestamp
 602  *
 603  * @dev: drm dev pointer
 604  * @crtc: crtc to get the timestamp for
 605  * @max_error: max error
 606  * @vblank_time: time value
 607  * @flags: flags passed to the driver
 608  *
 609  * Gets the timestamp on the requested crtc based on the
 610  * scanout position.  (all asics).
 611  * Returns postive status flags on success, negative error on failure.
 612  */
 613 int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
 614                                     int *max_error,
 615                                     struct timeval *vblank_time,
 616                                     unsigned flags)
 617 {
 618         struct drm_crtc *drmcrtc;
 619         struct radeon_device *rdev = dev->dev_private;
 620
 621         if (crtc < 0 || crtc >= dev->num_crtcs) {
 622                 DRM_ERROR("Invalid crtc %d\n", crtc);
 623                 return -EINVAL;
 624         }
 625
 626         /* Get associated drm_crtc: */
 627         drmcrtc = &rdev->mode_info.crtcs[crtc]->base;
 628
 629         /* Helper routine in DRM core does all the work: */
 630         return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc, max_error,
 631                                                      vblank_time, flags,
 632                                                      drmcrtc);
 633 }
 634
 635 /*
 636  * IOCTL.
 637  */
 638 int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
 639                          struct drm_file *file_priv)
 640 {
 641         /* Not valid in KMS. */
 642         return -EINVAL;
 643 }
 644
 645 #define KMS_INVALID_IOCTL(name)                                         \
 646 static int                                                              \
 647 name(struct drm_device *dev, void *data, struct drm_file *file_priv)    \
 648 {                                                                       \
 649         DRM_ERROR("invalid ioctl with kms %s\n", __func__);             \
 650         return -EINVAL;                                                 \
 651 }
 652
 653 /*
 654  * All these ioctls are invalid in kms world.
 655  */
 656 KMS_INVALID_IOCTL(radeon_cp_init_kms)
 657 KMS_INVALID_IOCTL(radeon_cp_start_kms)
 658 KMS_INVALID_IOCTL(radeon_cp_stop_kms)
 659 KMS_INVALID_IOCTL(radeon_cp_reset_kms)
 660 KMS_INVALID_IOCTL(radeon_cp_idle_kms)
 661 KMS_INVALID_IOCTL(radeon_cp_resume_kms)
 662 KMS_INVALID_IOCTL(radeon_engine_reset_kms)
 663 KMS_INVALID_IOCTL(radeon_fullscreen_kms)
 664 KMS_INVALID_IOCTL(radeon_cp_swap_kms)
 665 KMS_INVALID_IOCTL(radeon_cp_clear_kms)
 666 KMS_INVALID_IOCTL(radeon_cp_vertex_kms)
 667 KMS_INVALID_IOCTL(radeon_cp_indices_kms)
 668 KMS_INVALID_IOCTL(radeon_cp_texture_kms)
 669 KMS_INVALID_IOCTL(radeon_cp_stipple_kms)
 670 KMS_INVALID_IOCTL(radeon_cp_indirect_kms)
 671 KMS_INVALID_IOCTL(radeon_cp_vertex2_kms)
 672 KMS_INVALID_IOCTL(radeon_cp_cmdbuf_kms)
 673 KMS_INVALID_IOCTL(radeon_cp_getparam_kms)
 674 KMS_INVALID_IOCTL(radeon_cp_flip_kms)
 675 KMS_INVALID_IOCTL(radeon_mem_alloc_kms)
 676 KMS_INVALID_IOCTL(radeon_mem_free_kms)
 677 KMS_INVALID_IOCTL(radeon_mem_init_heap_kms)
 678 KMS_INVALID_IOCTL(radeon_irq_emit_kms)
 679 KMS_INVALID_IOCTL(radeon_irq_wait_kms)
 680 KMS_INVALID_IOCTL(radeon_cp_setparam_kms)
 681 KMS_INVALID_IOCTL(radeon_surface_alloc_kms)
 682 KMS_INVALID_IOCTL(radeon_surface_free_kms)
 683
 684
 685 struct drm_ioctl_desc radeon_ioctls_kms[] = {
 686         DRM_IOCTL_DEF_DRV(RADEON_CP_INIT, radeon_cp_init_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 687         DRM_IOCTL_DEF_DRV(RADEON_CP_START, radeon_cp_start_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 688         DRM_IOCTL_DEF_DRV(RADEON_CP_STOP, radeon_cp_stop_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 689         DRM_IOCTL_DEF_DRV(RADEON_CP_RESET, radeon_cp_reset_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 690         DRM_IOCTL_DEF_DRV(RADEON_CP_IDLE, radeon_cp_idle_kms, DRM_AUTH),
 691         DRM_IOCTL_DEF_DRV(RADEON_CP_RESUME, radeon_cp_resume_kms, DRM_AUTH),
 692         DRM_IOCTL_DEF_DRV(RADEON_RESET, radeon_engine_reset_kms, DRM_AUTH),
 693         DRM_IOCTL_DEF_DRV(RADEON_FULLSCREEN, radeon_fullscreen_kms, DRM_AUTH),
 694         DRM_IOCTL_DEF_DRV(RADEON_SWAP, radeon_cp_swap_kms, DRM_AUTH),
 695         DRM_IOCTL_DEF_DRV(RADEON_CLEAR, radeon_cp_clear_kms, DRM_AUTH),
 696         DRM_IOCTL_DEF_DRV(RADEON_VERTEX, radeon_cp_vertex_kms, DRM_AUTH),
 697         DRM_IOCTL_DEF_DRV(RADEON_INDICES, radeon_cp_indices_kms, DRM_AUTH),
 698         DRM_IOCTL_DEF_DRV(RADEON_TEXTURE, radeon_cp_texture_kms, DRM_AUTH),
 699         DRM_IOCTL_DEF_DRV(RADEON_STIPPLE, radeon_cp_stipple_kms, DRM_AUTH),
 700         DRM_IOCTL_DEF_DRV(RADEON_INDIRECT, radeon_cp_indirect_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 701         DRM_IOCTL_DEF_DRV(RADEON_VERTEX2, radeon_cp_vertex2_kms, DRM_AUTH),
 702         DRM_IOCTL_DEF_DRV(RADEON_CMDBUF, radeon_cp_cmdbuf_kms, DRM_AUTH),
 703         DRM_IOCTL_DEF_DRV(RADEON_GETPARAM, radeon_cp_getparam_kms, DRM_AUTH),
 704         DRM_IOCTL_DEF_DRV(RADEON_FLIP, radeon_cp_flip_kms, DRM_AUTH),
 705         DRM_IOCTL_DEF_DRV(RADEON_ALLOC, radeon_mem_alloc_kms, DRM_AUTH),
 706         DRM_IOCTL_DEF_DRV(RADEON_FREE, radeon_mem_free_kms, DRM_AUTH),
 707         DRM_IOCTL_DEF_DRV(RADEON_INIT_HEAP, radeon_mem_init_heap_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 708         DRM_IOCTL_DEF_DRV(RADEON_IRQ_EMIT, radeon_irq_emit_kms, DRM_AUTH),
 709         DRM_IOCTL_DEF_DRV(RADEON_IRQ_WAIT, radeon_irq_wait_kms, DRM_AUTH),
 710         DRM_IOCTL_DEF_DRV(RADEON_SETPARAM, radeon_cp_setparam_kms, DRM_AUTH),
 711         DRM_IOCTL_DEF_DRV(RADEON_SURF_ALLOC, radeon_surface_alloc_kms, DRM_AUTH),
 712         DRM_IOCTL_DEF_DRV(RADEON_SURF_FREE, radeon_surface_free_kms, DRM_AUTH),
 713         /* KMS */
 714         DRM_IOCTL_DEF_DRV(RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
 715         DRM_IOCTL_DEF_DRV(RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_UNLOCKED),
 716         DRM_IOCTL_DEF_DRV(RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_UNLOCKED),
 717         DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_UNLOCKED),
 718         DRM_IOCTL_DEF_DRV(RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH|DRM_UNLOCKED),
 719         DRM_IOCTL_DEF_DRV(RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH|DRM_UNLOCKED),
 720         DRM_IOCTL_DEF_DRV(RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_UNLOCKED),
 721         DRM_IOCTL_DEF_DRV(RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_UNLOCKED),
 722         DRM_IOCTL_DEF_DRV(RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
 723         DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 724         DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 725         DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
 726         DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_UNLOCKED),
 727 };
 728 int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms);