drivers/gpu/drm/amd/amdgpu/dce_virtual.c

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23 #include "drmP.h"
  24 #include "amdgpu.h"
  25 #include "amdgpu_pm.h"
  26 #include "amdgpu_i2c.h"
  27 #include "atom.h"
  28 #include "amdgpu_pll.h"
  29 #include "amdgpu_connectors.h"
  30 #ifdef CONFIG_DRM_AMDGPU_CIK
  31 #include "dce_v8_0.h"
  32 #endif
  33 #include "dce_v10_0.h"
  34 #include "dce_v11_0.h"
  35 #include "dce_virtual.h"
  36
  37 static void dce_virtual_set_display_funcs(struct amdgpu_device *adev);
  38 static void dce_virtual_set_irq_funcs(struct amdgpu_device *adev);
  39 static int dce_virtual_pageflip_irq(struct amdgpu_device *adev,
  40                                   struct amdgpu_irq_src *source,
  41                                   struct amdgpu_iv_entry *entry);
  42
  43 /**
  44  * dce_virtual_vblank_wait - vblank wait asic callback.
  45  *
  46  * @adev: amdgpu_device pointer
  47  * @crtc: crtc to wait for vblank on
  48  *
  49  * Wait for vblank on the requested crtc (evergreen+).
  50  */
  51 static void dce_virtual_vblank_wait(struct amdgpu_device *adev, int crtc)
  52 {
  53         return;
  54 }
  55
  56 static u32 dce_virtual_vblank_get_counter(struct amdgpu_device *adev, int crtc)
  57 {
  58         return 0;
  59 }
  60
  61 static void dce_virtual_page_flip(struct amdgpu_device *adev,
  62                               int crtc_id, u64 crtc_base, bool async)
  63 {
  64         return;
  65 }
  66
  67 static int dce_virtual_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
  68                                         u32 *vbl, u32 *position)
  69 {
  70         *vbl = 0;
  71         *position = 0;
  72
  73         return -EINVAL;
  74 }
  75
  76 static bool dce_virtual_hpd_sense(struct amdgpu_device *adev,
  77                                enum amdgpu_hpd_id hpd)
  78 {
  79         return true;
  80 }
  81
  82 static void dce_virtual_hpd_set_polarity(struct amdgpu_device *adev,
  83                                       enum amdgpu_hpd_id hpd)
  84 {
  85         return;
  86 }
  87
  88 static u32 dce_virtual_hpd_get_gpio_reg(struct amdgpu_device *adev)
  89 {
  90         return 0;
  91 }
  92
  93 static bool dce_virtual_is_display_hung(struct amdgpu_device *adev)
  94 {
  95         return false;
  96 }
  97
  98 static void dce_virtual_stop_mc_access(struct amdgpu_device *adev,
  99                               struct amdgpu_mode_mc_save *save)
 100 {
 101         switch (adev->asic_type) {
 102         case CHIP_BONAIRE:
 103         case CHIP_HAWAII:
 104         case CHIP_KAVERI:
 105         case CHIP_KABINI:
 106         case CHIP_MULLINS:
 107 #ifdef CONFIG_DRM_AMDGPU_CIK
 108                 dce_v8_0_disable_dce(adev);
 109 #endif
 110                 break;
 111         case CHIP_FIJI:
 112         case CHIP_TONGA:
 113                 dce_v10_0_disable_dce(adev);
 114                 break;
 115         case CHIP_CARRIZO:
 116         case CHIP_STONEY:
 117         case CHIP_POLARIS11:
 118         case CHIP_POLARIS10:
 119                 dce_v11_0_disable_dce(adev);
 120                 break;
 121         case CHIP_TOPAZ:
 122                 /* no DCE */
 123                 return;
 124         default:
 125                 DRM_ERROR("Virtual display unsupported ASIC type: 0x%X\n", adev->asic_type);
 126         }
 127
 128         return;
 129 }
 130 static void dce_virtual_resume_mc_access(struct amdgpu_device *adev,
 131                                 struct amdgpu_mode_mc_save *save)
 132 {
 133         return;
 134 }
 135
 136 static void dce_virtual_set_vga_render_state(struct amdgpu_device *adev,
 137                                     bool render)
 138 {
 139         return;
 140 }
 141
 142 /**
 143  * dce_virtual_bandwidth_update - program display watermarks
 144  *
 145  * @adev: amdgpu_device pointer
 146  *
 147  * Calculate and program the display watermarks and line
 148  * buffer allocation (CIK).
 149  */
 150 static void dce_virtual_bandwidth_update(struct amdgpu_device *adev)
 151 {
 152         return;
 153 }
 154
 155 static int dce_virtual_crtc_gamma_set(struct drm_crtc *crtc, u16 *red,
 156                                       u16 *green, u16 *blue, uint32_t size)
 157 {
 158         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 159         int i;
 160
 161         /* userspace palettes are always correct as is */
 162         for (i = 0; i < size; i++) {
 163                 amdgpu_crtc->lut_r[i] = red[i] >> 6;
 164                 amdgpu_crtc->lut_g[i] = green[i] >> 6;
 165                 amdgpu_crtc->lut_b[i] = blue[i] >> 6;
 166         }
 167
 168         return 0;
 169 }
 170
 171 static void dce_virtual_crtc_destroy(struct drm_crtc *crtc)
 172 {
 173         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 174
 175         drm_crtc_cleanup(crtc);
 176         kfree(amdgpu_crtc);
 177 }
 178
 179 static const struct drm_crtc_funcs dce_virtual_crtc_funcs = {
 180         .cursor_set2 = NULL,
 181         .cursor_move = NULL,
 182         .gamma_set = dce_virtual_crtc_gamma_set,
 183         .set_config = amdgpu_crtc_set_config,
 184         .destroy = dce_virtual_crtc_destroy,
 185         .page_flip_target = amdgpu_crtc_page_flip_target,
 186 };
 187
 188 static void dce_virtual_crtc_dpms(struct drm_crtc *crtc, int mode)
 189 {
 190         struct drm_device *dev = crtc->dev;
 191         struct amdgpu_device *adev = dev->dev_private;
 192         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 193         unsigned type;
 194
 195         switch (mode) {
 196         case DRM_MODE_DPMS_ON:
 197                 amdgpu_crtc->enabled = true;
 198                 /* Make sure VBLANK and PFLIP interrupts are still enabled */
 199                 type = amdgpu_crtc_idx_to_irq_type(adev, amdgpu_crtc->crtc_id);
 200                 amdgpu_irq_update(adev, &adev->crtc_irq, type);
 201                 amdgpu_irq_update(adev, &adev->pageflip_irq, type);
 202                 drm_vblank_on(dev, amdgpu_crtc->crtc_id);
 203                 break;
 204         case DRM_MODE_DPMS_STANDBY:
 205         case DRM_MODE_DPMS_SUSPEND:
 206         case DRM_MODE_DPMS_OFF:
 207                 drm_vblank_off(dev, amdgpu_crtc->crtc_id);
 208                 amdgpu_crtc->enabled = false;
 209                 break;
 210         }
 211 }
 212
 213
 214 static void dce_virtual_crtc_prepare(struct drm_crtc *crtc)
 215 {
 216         dce_virtual_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 217 }
 218
 219 static void dce_virtual_crtc_commit(struct drm_crtc *crtc)
 220 {
 221         dce_virtual_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
 222 }
 223
 224 static void dce_virtual_crtc_disable(struct drm_crtc *crtc)
 225 {
 226         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 227
 228         dce_virtual_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 229         if (crtc->primary->fb) {
 230                 int r;
 231                 struct amdgpu_framebuffer *amdgpu_fb;
 232                 struct amdgpu_bo *rbo;
 233
 234                 amdgpu_fb = to_amdgpu_framebuffer(crtc->primary->fb);
 235                 rbo = gem_to_amdgpu_bo(amdgpu_fb->obj);
 236                 r = amdgpu_bo_reserve(rbo, false);
 237                 if (unlikely(r))
 238                         DRM_ERROR("failed to reserve rbo before unpin\n");
 239                 else {
 240                         amdgpu_bo_unpin(rbo);
 241                         amdgpu_bo_unreserve(rbo);
 242                 }
 243         }
 244
 245         amdgpu_crtc->pll_id = ATOM_PPLL_INVALID;
 246         amdgpu_crtc->encoder = NULL;
 247         amdgpu_crtc->connector = NULL;
 248 }
 249
 250 static int dce_virtual_crtc_mode_set(struct drm_crtc *crtc,
 251                                   struct drm_display_mode *mode,
 252                                   struct drm_display_mode *adjusted_mode,
 253                                   int x, int y, struct drm_framebuffer *old_fb)
 254 {
 255         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 256
 257         /* update the hw version fpr dpm */
 258         amdgpu_crtc->hw_mode = *adjusted_mode;
 259
 260         return 0;
 261 }
 262
 263 static bool dce_virtual_crtc_mode_fixup(struct drm_crtc *crtc,
 264                                      const struct drm_display_mode *mode,
 265                                      struct drm_display_mode *adjusted_mode)
 266 {
 267         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 268         struct drm_device *dev = crtc->dev;
 269         struct drm_encoder *encoder;
 270
 271         /* assign the encoder to the amdgpu crtc to avoid repeated lookups later */
 272         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 273                 if (encoder->crtc == crtc) {
 274                         amdgpu_crtc->encoder = encoder;
 275                         amdgpu_crtc->connector = amdgpu_get_connector_for_encoder(encoder);
 276                         break;
 277                 }
 278         }
 279         if ((amdgpu_crtc->encoder == NULL) || (amdgpu_crtc->connector == NULL)) {
 280                 amdgpu_crtc->encoder = NULL;
 281                 amdgpu_crtc->connector = NULL;
 282                 return false;
 283         }
 284
 285         return true;
 286 }
 287
 288
 289 static int dce_virtual_crtc_set_base(struct drm_crtc *crtc, int x, int y,
 290                                   struct drm_framebuffer *old_fb)
 291 {
 292         return 0;
 293 }
 294
 295 static void dce_virtual_crtc_load_lut(struct drm_crtc *crtc)
 296 {
 297         return;
 298 }
 299
 300 static int dce_virtual_crtc_set_base_atomic(struct drm_crtc *crtc,
 301                                          struct drm_framebuffer *fb,
 302                                          int x, int y, enum mode_set_atomic state)
 303 {
 304         return 0;
 305 }
 306
 307 static const struct drm_crtc_helper_funcs dce_virtual_crtc_helper_funcs = {
 308         .dpms = dce_virtual_crtc_dpms,
 309         .mode_fixup = dce_virtual_crtc_mode_fixup,
 310         .mode_set = dce_virtual_crtc_mode_set,
 311         .mode_set_base = dce_virtual_crtc_set_base,
 312         .mode_set_base_atomic = dce_virtual_crtc_set_base_atomic,
 313         .prepare = dce_virtual_crtc_prepare,
 314         .commit = dce_virtual_crtc_commit,
 315         .load_lut = dce_virtual_crtc_load_lut,
 316         .disable = dce_virtual_crtc_disable,
 317 };
 318
 319 static int dce_virtual_crtc_init(struct amdgpu_device *adev, int index)
 320 {
 321         struct amdgpu_crtc *amdgpu_crtc;
 322         int i;
 323
 324         amdgpu_crtc = kzalloc(sizeof(struct amdgpu_crtc) +
 325                               (AMDGPUFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
 326         if (amdgpu_crtc == NULL)
 327                 return -ENOMEM;
 328
 329         drm_crtc_init(adev->ddev, &amdgpu_crtc->base, &dce_virtual_crtc_funcs);
 330
 331         drm_mode_crtc_set_gamma_size(&amdgpu_crtc->base, 256);
 332         amdgpu_crtc->crtc_id = index;
 333         adev->mode_info.crtcs[index] = amdgpu_crtc;
 334
 335         for (i = 0; i < 256; i++) {
 336                 amdgpu_crtc->lut_r[i] = i << 2;
 337                 amdgpu_crtc->lut_g[i] = i << 2;
 338                 amdgpu_crtc->lut_b[i] = i << 2;
 339         }
 340
 341         amdgpu_crtc->pll_id = ATOM_PPLL_INVALID;
 342         amdgpu_crtc->encoder = NULL;
 343         amdgpu_crtc->connector = NULL;
 344         drm_crtc_helper_add(&amdgpu_crtc->base, &dce_virtual_crtc_helper_funcs);
 345
 346         return 0;
 347 }
 348
 349 static int dce_virtual_early_init(void *handle)
 350 {
 351         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 352
 353         adev->mode_info.vsync_timer_enabled = AMDGPU_IRQ_STATE_DISABLE;
 354         dce_virtual_set_display_funcs(adev);
 355         dce_virtual_set_irq_funcs(adev);
 356
 357         adev->mode_info.num_crtc = 1;
 358         adev->mode_info.num_hpd = 1;
 359         adev->mode_info.num_dig = 1;
 360         return 0;
 361 }
 362
 363 static bool dce_virtual_get_connector_info(struct amdgpu_device *adev)
 364 {
 365         struct amdgpu_i2c_bus_rec ddc_bus;
 366         struct amdgpu_router router;
 367         struct amdgpu_hpd hpd;
 368
 369         /* look up gpio for ddc, hpd */
 370         ddc_bus.valid = false;
 371         hpd.hpd = AMDGPU_HPD_NONE;
 372         /* needed for aux chan transactions */
 373         ddc_bus.hpd = hpd.hpd;
 374
 375         memset(&router, 0, sizeof(router));
 376         router.ddc_valid = false;
 377         router.cd_valid = false;
 378         amdgpu_display_add_connector(adev,
 379                                       0,
 380                                       ATOM_DEVICE_CRT1_SUPPORT,
 381                                       DRM_MODE_CONNECTOR_VIRTUAL, &ddc_bus,
 382                                       CONNECTOR_OBJECT_ID_VIRTUAL,
 383                                       &hpd,
 384                                       &router);
 385
 386         amdgpu_display_add_encoder(adev, ENCODER_VIRTUAL_ENUM_VIRTUAL,
 387                                                         ATOM_DEVICE_CRT1_SUPPORT,
 388                                                         0);
 389
 390         amdgpu_link_encoder_connector(adev->ddev);
 391
 392         return true;
 393 }
 394
 395 static int dce_virtual_sw_init(void *handle)
 396 {
 397         int r, i;
 398         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 399
 400         r = amdgpu_irq_add_id(adev, 229, &adev->crtc_irq);
 401         if (r)
 402                 return r;
 403
 404         adev->ddev->max_vblank_count = 0;
 405
 406         adev->ddev->mode_config.funcs = &amdgpu_mode_funcs;
 407
 408         adev->ddev->mode_config.max_width = 16384;
 409         adev->ddev->mode_config.max_height = 16384;
 410
 411         adev->ddev->mode_config.preferred_depth = 24;
 412         adev->ddev->mode_config.prefer_shadow = 1;
 413
 414         adev->ddev->mode_config.fb_base = adev->mc.aper_base;
 415
 416         r = amdgpu_modeset_create_props(adev);
 417         if (r)
 418                 return r;
 419
 420         adev->ddev->mode_config.max_width = 16384;
 421         adev->ddev->mode_config.max_height = 16384;
 422
 423         /* allocate crtcs */
 424         for (i = 0; i < adev->mode_info.num_crtc; i++) {
 425                 r = dce_virtual_crtc_init(adev, i);
 426                 if (r)
 427                         return r;
 428         }
 429
 430         dce_virtual_get_connector_info(adev);
 431         amdgpu_print_display_setup(adev->ddev);
 432
 433         drm_kms_helper_poll_init(adev->ddev);
 434
 435         adev->mode_info.mode_config_initialized = true;
 436         return 0;
 437 }
 438
 439 static int dce_virtual_sw_fini(void *handle)
 440 {
 441         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 442
 443         kfree(adev->mode_info.bios_hardcoded_edid);
 444
 445         drm_kms_helper_poll_fini(adev->ddev);
 446
 447         drm_mode_config_cleanup(adev->ddev);
 448         adev->mode_info.mode_config_initialized = false;
 449         return 0;
 450 }
 451
 452 static int dce_virtual_hw_init(void *handle)
 453 {
 454         return 0;
 455 }
 456
 457 static int dce_virtual_hw_fini(void *handle)
 458 {
 459         return 0;
 460 }
 461
 462 static int dce_virtual_suspend(void *handle)
 463 {
 464         return dce_virtual_hw_fini(handle);
 465 }
 466
 467 static int dce_virtual_resume(void *handle)
 468 {
 469         return dce_virtual_hw_init(handle);
 470 }
 471
 472 static bool dce_virtual_is_idle(void *handle)
 473 {
 474         return true;
 475 }
 476
 477 static int dce_virtual_wait_for_idle(void *handle)
 478 {
 479         return 0;
 480 }
 481
 482 static int dce_virtual_soft_reset(void *handle)
 483 {
 484         return 0;
 485 }
 486
 487 static int dce_virtual_set_clockgating_state(void *handle,
 488                                           enum amd_clockgating_state state)
 489 {
 490         return 0;
 491 }
 492
 493 static int dce_virtual_set_powergating_state(void *handle,
 494                                           enum amd_powergating_state state)
 495 {
 496         return 0;
 497 }
 498
 499 const struct amd_ip_funcs dce_virtual_ip_funcs = {
 500         .name = "dce_virtual",
 501         .early_init = dce_virtual_early_init,
 502         .late_init = NULL,
 503         .sw_init = dce_virtual_sw_init,
 504         .sw_fini = dce_virtual_sw_fini,
 505         .hw_init = dce_virtual_hw_init,
 506         .hw_fini = dce_virtual_hw_fini,
 507         .suspend = dce_virtual_suspend,
 508         .resume = dce_virtual_resume,
 509         .is_idle = dce_virtual_is_idle,
 510         .wait_for_idle = dce_virtual_wait_for_idle,
 511         .soft_reset = dce_virtual_soft_reset,
 512         .set_clockgating_state = dce_virtual_set_clockgating_state,
 513         .set_powergating_state = dce_virtual_set_powergating_state,
 514 };
 515
 516 /* these are handled by the primary encoders */
 517 static void dce_virtual_encoder_prepare(struct drm_encoder *encoder)
 518 {
 519         return;
 520 }
 521
 522 static void dce_virtual_encoder_commit(struct drm_encoder *encoder)
 523 {
 524         return;
 525 }
 526
 527 static void
 528 dce_virtual_encoder_mode_set(struct drm_encoder *encoder,
 529                       struct drm_display_mode *mode,
 530                       struct drm_display_mode *adjusted_mode)
 531 {
 532         return;
 533 }
 534
 535 static void dce_virtual_encoder_disable(struct drm_encoder *encoder)
 536 {
 537         return;
 538 }
 539
 540 static void
 541 dce_virtual_encoder_dpms(struct drm_encoder *encoder, int mode)
 542 {
 543         return;
 544 }
 545
 546 static bool dce_virtual_encoder_mode_fixup(struct drm_encoder *encoder,
 547                                     const struct drm_display_mode *mode,
 548                                     struct drm_display_mode *adjusted_mode)
 549 {
 550
 551         /* set the active encoder to connector routing */
 552         amdgpu_encoder_set_active_device(encoder);
 553
 554         return true;
 555 }
 556
 557 static const struct drm_encoder_helper_funcs dce_virtual_encoder_helper_funcs = {
 558         .dpms = dce_virtual_encoder_dpms,
 559         .mode_fixup = dce_virtual_encoder_mode_fixup,
 560         .prepare = dce_virtual_encoder_prepare,
 561         .mode_set = dce_virtual_encoder_mode_set,
 562         .commit = dce_virtual_encoder_commit,
 563         .disable = dce_virtual_encoder_disable,
 564 };
 565
 566 static void dce_virtual_encoder_destroy(struct drm_encoder *encoder)
 567 {
 568         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 569
 570         kfree(amdgpu_encoder->enc_priv);
 571         drm_encoder_cleanup(encoder);
 572         kfree(amdgpu_encoder);
 573 }
 574
 575 static const struct drm_encoder_funcs dce_virtual_encoder_funcs = {
 576         .destroy = dce_virtual_encoder_destroy,
 577 };
 578
 579 static void dce_virtual_encoder_add(struct amdgpu_device *adev,
 580                                  uint32_t encoder_enum,
 581                                  uint32_t supported_device,
 582                                  u16 caps)
 583 {
 584         struct drm_device *dev = adev->ddev;
 585         struct drm_encoder *encoder;
 586         struct amdgpu_encoder *amdgpu_encoder;
 587
 588         /* see if we already added it */
 589         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 590                 amdgpu_encoder = to_amdgpu_encoder(encoder);
 591                 if (amdgpu_encoder->encoder_enum == encoder_enum) {
 592                         amdgpu_encoder->devices |= supported_device;
 593                         return;
 594                 }
 595
 596         }
 597
 598         /* add a new one */
 599         amdgpu_encoder = kzalloc(sizeof(struct amdgpu_encoder), GFP_KERNEL);
 600         if (!amdgpu_encoder)
 601                 return;
 602
 603         encoder = &amdgpu_encoder->base;
 604         encoder->possible_crtcs = 0x1;
 605         amdgpu_encoder->enc_priv = NULL;
 606         amdgpu_encoder->encoder_enum = encoder_enum;
 607         amdgpu_encoder->encoder_id = (encoder_enum & OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
 608         amdgpu_encoder->devices = supported_device;
 609         amdgpu_encoder->rmx_type = RMX_OFF;
 610         amdgpu_encoder->underscan_type = UNDERSCAN_OFF;
 611         amdgpu_encoder->is_ext_encoder = false;
 612         amdgpu_encoder->caps = caps;
 613
 614         drm_encoder_init(dev, encoder, &dce_virtual_encoder_funcs,
 615                                          DRM_MODE_ENCODER_VIRTUAL, NULL);
 616         drm_encoder_helper_add(encoder, &dce_virtual_encoder_helper_funcs);
 617         DRM_INFO("[FM]encoder: %d is VIRTUAL\n", amdgpu_encoder->encoder_id);
 618 }
 619
 620 static const struct amdgpu_display_funcs dce_virtual_display_funcs = {
 621         .set_vga_render_state = &dce_virtual_set_vga_render_state,
 622         .bandwidth_update = &dce_virtual_bandwidth_update,
 623         .vblank_get_counter = &dce_virtual_vblank_get_counter,
 624         .vblank_wait = &dce_virtual_vblank_wait,
 625         .is_display_hung = &dce_virtual_is_display_hung,
 626         .backlight_set_level = NULL,
 627         .backlight_get_level = NULL,
 628         .hpd_sense = &dce_virtual_hpd_sense,
 629         .hpd_set_polarity = &dce_virtual_hpd_set_polarity,
 630         .hpd_get_gpio_reg = &dce_virtual_hpd_get_gpio_reg,
 631         .page_flip = &dce_virtual_page_flip,
 632         .page_flip_get_scanoutpos = &dce_virtual_crtc_get_scanoutpos,
 633         .add_encoder = &dce_virtual_encoder_add,
 634         .add_connector = &amdgpu_connector_add,
 635         .stop_mc_access = &dce_virtual_stop_mc_access,
 636         .resume_mc_access = &dce_virtual_resume_mc_access,
 637 };
 638
 639 static void dce_virtual_set_display_funcs(struct amdgpu_device *adev)
 640 {
 641         if (adev->mode_info.funcs == NULL)
 642                 adev->mode_info.funcs = &dce_virtual_display_funcs;
 643 }
 644
 645 static enum hrtimer_restart dce_virtual_vblank_timer_handle(struct hrtimer *vblank_timer)
 646 {
 647         struct amdgpu_mode_info *mode_info = container_of(vblank_timer, struct amdgpu_mode_info ,vblank_timer);
 648         struct amdgpu_device *adev = container_of(mode_info, struct amdgpu_device ,mode_info);
 649         unsigned crtc = 0;
 650         drm_handle_vblank(adev->ddev, crtc);
 651         dce_virtual_pageflip_irq(adev, NULL, NULL);
 652         hrtimer_start(vblank_timer, ktime_set(0, DCE_VIRTUAL_VBLANK_PERIOD), HRTIMER_MODE_REL);
 653         return HRTIMER_NORESTART;
 654 }
 655
 656 static void dce_virtual_set_crtc_vblank_interrupt_state(struct amdgpu_device *adev,
 657                                                      int crtc,
 658                                                      enum amdgpu_interrupt_state state)
 659 {
 660         if (crtc >= adev->mode_info.num_crtc) {
 661                 DRM_DEBUG("invalid crtc %d\n", crtc);
 662                 return;
 663         }
 664
 665         if (state && !adev->mode_info.vsync_timer_enabled) {
 666                 DRM_DEBUG("Enable software vsync timer\n");
 667                 hrtimer_init(&adev->mode_info.vblank_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 668                 hrtimer_set_expires(&adev->mode_info.vblank_timer, ktime_set(0, DCE_VIRTUAL_VBLANK_PERIOD));
 669                 adev->mode_info.vblank_timer.function = dce_virtual_vblank_timer_handle;
 670                 hrtimer_start(&adev->mode_info.vblank_timer, ktime_set(0, DCE_VIRTUAL_VBLANK_PERIOD), HRTIMER_MODE_REL);
 671         } else if (!state && adev->mode_info.vsync_timer_enabled) {
 672                 DRM_DEBUG("Disable software vsync timer\n");
 673                 hrtimer_cancel(&adev->mode_info.vblank_timer);
 674         }
 675
 676         adev->mode_info.vsync_timer_enabled = state;
 677         DRM_DEBUG("[FM]set crtc %d vblank interrupt state %d\n", crtc, state);
 678 }
 679
 680
 681 static int dce_virtual_set_crtc_irq_state(struct amdgpu_device *adev,
 682                                        struct amdgpu_irq_src *source,
 683                                        unsigned type,
 684                                        enum amdgpu_interrupt_state state)
 685 {
 686         switch (type) {
 687         case AMDGPU_CRTC_IRQ_VBLANK1:
 688                 dce_virtual_set_crtc_vblank_interrupt_state(adev, 0, state);
 689                 break;
 690         default:
 691                 break;
 692         }
 693         return 0;
 694 }
 695
 696 static void dce_virtual_crtc_vblank_int_ack(struct amdgpu_device *adev,
 697                                           int crtc)
 698 {
 699         if (crtc >= adev->mode_info.num_crtc) {
 700                 DRM_DEBUG("invalid crtc %d\n", crtc);
 701                 return;
 702         }
 703 }
 704
 705 static int dce_virtual_crtc_irq(struct amdgpu_device *adev,
 706                               struct amdgpu_irq_src *source,
 707                               struct amdgpu_iv_entry *entry)
 708 {
 709         unsigned crtc = 0;
 710         unsigned irq_type = AMDGPU_CRTC_IRQ_VBLANK1;
 711
 712         dce_virtual_crtc_vblank_int_ack(adev, crtc);
 713
 714         if (amdgpu_irq_enabled(adev, source, irq_type)) {
 715                 drm_handle_vblank(adev->ddev, crtc);
 716         }
 717         dce_virtual_pageflip_irq(adev, NULL, NULL);
 718         DRM_DEBUG("IH: D%d vblank\n", crtc + 1);
 719         return 0;
 720 }
 721
 722 static int dce_virtual_set_pageflip_irq_state(struct amdgpu_device *adev,
 723                                             struct amdgpu_irq_src *src,
 724                                             unsigned type,
 725                                             enum amdgpu_interrupt_state state)
 726 {
 727         if (type >= adev->mode_info.num_crtc) {
 728                 DRM_ERROR("invalid pageflip crtc %d\n", type);
 729                 return -EINVAL;
 730         }
 731         DRM_DEBUG("[FM]set pageflip irq type %d state %d\n", type, state);
 732
 733         return 0;
 734 }
 735
 736 static int dce_virtual_pageflip_irq(struct amdgpu_device *adev,
 737                                   struct amdgpu_irq_src *source,
 738                                   struct amdgpu_iv_entry *entry)
 739 {
 740         unsigned long flags;
 741         unsigned crtc_id = 0;
 742         struct amdgpu_crtc *amdgpu_crtc;
 743         struct amdgpu_flip_work *works;
 744
 745         crtc_id = 0;
 746         amdgpu_crtc = adev->mode_info.crtcs[crtc_id];
 747
 748         if (crtc_id >= adev->mode_info.num_crtc) {
 749                 DRM_ERROR("invalid pageflip crtc %d\n", crtc_id);
 750                 return -EINVAL;
 751         }
 752
 753         /* IRQ could occur when in initial stage */
 754         if (amdgpu_crtc == NULL)
 755                 return 0;
 756
 757         spin_lock_irqsave(&adev->ddev->event_lock, flags);
 758         works = amdgpu_crtc->pflip_works;
 759         if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED) {
 760                 DRM_DEBUG_DRIVER("amdgpu_crtc->pflip_status = %d != "
 761                         "AMDGPU_FLIP_SUBMITTED(%d)\n",
 762                         amdgpu_crtc->pflip_status,
 763                         AMDGPU_FLIP_SUBMITTED);
 764                 spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
 765                 return 0;
 766         }
 767
 768         /* page flip completed. clean up */
 769         amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
 770         amdgpu_crtc->pflip_works = NULL;
 771
 772         /* wakeup usersapce */
 773         if (works->event)
 774                 drm_crtc_send_vblank_event(&amdgpu_crtc->base, works->event);
 775
 776         spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
 777
 778         drm_crtc_vblank_put(&amdgpu_crtc->base);
 779         schedule_work(&works->unpin_work);
 780
 781         return 0;
 782 }
 783
 784 static const struct amdgpu_irq_src_funcs dce_virtual_crtc_irq_funcs = {
 785         .set = dce_virtual_set_crtc_irq_state,
 786         .process = dce_virtual_crtc_irq,
 787 };
 788
 789 static const struct amdgpu_irq_src_funcs dce_virtual_pageflip_irq_funcs = {
 790         .set = dce_virtual_set_pageflip_irq_state,
 791         .process = dce_virtual_pageflip_irq,
 792 };
 793
 794 static void dce_virtual_set_irq_funcs(struct amdgpu_device *adev)
 795 {
 796         adev->crtc_irq.num_types = AMDGPU_CRTC_IRQ_LAST;
 797         adev->crtc_irq.funcs = &dce_virtual_crtc_irq_funcs;
 798
 799         adev->pageflip_irq.num_types = AMDGPU_PAGEFLIP_IRQ_LAST;
 800         adev->pageflip_irq.funcs = &dce_virtual_pageflip_irq_funcs;
 801 }
 802