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
  24 #include <drm/drm_vblank.h>
  25
  26 #include "amdgpu.h"
  27 #include "amdgpu_pm.h"
  28 #include "amdgpu_i2c.h"
  29 #include "atom.h"
  30 #include "amdgpu_pll.h"
  31 #include "amdgpu_connectors.h"
  32 #ifdef CONFIG_DRM_AMDGPU_SI
  33 #include "dce_v6_0.h"
  34 #endif
  35 #ifdef CONFIG_DRM_AMDGPU_CIK
  36 #include "dce_v8_0.h"
  37 #endif
  38 #include "dce_v10_0.h"
  39 #include "dce_v11_0.h"
  40 #include "dce_virtual.h"
  41 #include "ivsrcid/ivsrcid_vislands30.h"
  42 #include "amdgpu_display.h"
  43
  44 #define DCE_VIRTUAL_VBLANK_PERIOD 16666666
  45
  46
  47 static void dce_virtual_set_display_funcs(struct amdgpu_device *adev);
  48 static void dce_virtual_set_irq_funcs(struct amdgpu_device *adev);
  49 static int dce_virtual_connector_encoder_init(struct amdgpu_device *adev,
  50                                               int index);
  51 static int dce_virtual_pageflip(struct amdgpu_device *adev,
  52                                 unsigned crtc_id);
  53 static enum hrtimer_restart dce_virtual_vblank_timer_handle(struct hrtimer *vblank_timer);
  54 static void dce_virtual_set_crtc_vblank_interrupt_state(struct amdgpu_device *adev,
  55                                                         int crtc,
  56                                                         enum amdgpu_interrupt_state state);
  57
  58 static u32 dce_virtual_vblank_get_counter(struct amdgpu_device *adev, int crtc)
  59 {
  60         return 0;
  61 }
  62
  63 static void dce_virtual_page_flip(struct amdgpu_device *adev,
  64                               int crtc_id, u64 crtc_base, bool async)
  65 {
  66         return;
  67 }
  68
  69 static int dce_virtual_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
  70                                         u32 *vbl, u32 *position)
  71 {
  72         *vbl = 0;
  73         *position = 0;
  74
  75         return -EINVAL;
  76 }
  77
  78 static bool dce_virtual_hpd_sense(struct amdgpu_device *adev,
  79                                enum amdgpu_hpd_id hpd)
  80 {
  81         return true;
  82 }
  83
  84 static void dce_virtual_hpd_set_polarity(struct amdgpu_device *adev,
  85                                       enum amdgpu_hpd_id hpd)
  86 {
  87         return;
  88 }
  89
  90 static u32 dce_virtual_hpd_get_gpio_reg(struct amdgpu_device *adev)
  91 {
  92         return 0;
  93 }
  94
  95 /**
  96  * dce_virtual_bandwidth_update - program display watermarks
  97  *
  98  * @adev: amdgpu_device pointer
  99  *
 100  * Calculate and program the display watermarks and line
 101  * buffer allocation (CIK).
 102  */
 103 static void dce_virtual_bandwidth_update(struct amdgpu_device *adev)
 104 {
 105         return;
 106 }
 107
 108 static int dce_virtual_crtc_gamma_set(struct drm_crtc *crtc, u16 *red,
 109                                       u16 *green, u16 *blue, uint32_t size,
 110                                       struct drm_modeset_acquire_ctx *ctx)
 111 {
 112         return 0;
 113 }
 114
 115 static void dce_virtual_crtc_destroy(struct drm_crtc *crtc)
 116 {
 117         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 118
 119         drm_crtc_cleanup(crtc);
 120         kfree(amdgpu_crtc);
 121 }
 122
 123 static const struct drm_crtc_funcs dce_virtual_crtc_funcs = {
 124         .cursor_set2 = NULL,
 125         .cursor_move = NULL,
 126         .gamma_set = dce_virtual_crtc_gamma_set,
 127         .set_config = amdgpu_display_crtc_set_config,
 128         .destroy = dce_virtual_crtc_destroy,
 129         .page_flip_target = amdgpu_display_crtc_page_flip_target,
 130         .get_vblank_counter = amdgpu_get_vblank_counter_kms,
 131         .enable_vblank = amdgpu_enable_vblank_kms,
 132         .disable_vblank = amdgpu_disable_vblank_kms,
 133         .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
 134 };
 135
 136 static void dce_virtual_crtc_dpms(struct drm_crtc *crtc, int mode)
 137 {
 138         struct drm_device *dev = crtc->dev;
 139         struct amdgpu_device *adev = drm_to_adev(dev);
 140         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 141         unsigned type;
 142
 143         switch (mode) {
 144         case DRM_MODE_DPMS_ON:
 145                 amdgpu_crtc->enabled = true;
 146                 /* Make sure VBLANK interrupts are still enabled */
 147                 type = amdgpu_display_crtc_idx_to_irq_type(adev,
 148                                                 amdgpu_crtc->crtc_id);
 149                 amdgpu_irq_update(adev, &adev->crtc_irq, type);
 150                 drm_crtc_vblank_on(crtc);
 151                 break;
 152         case DRM_MODE_DPMS_STANDBY:
 153         case DRM_MODE_DPMS_SUSPEND:
 154         case DRM_MODE_DPMS_OFF:
 155                 drm_crtc_vblank_off(crtc);
 156                 amdgpu_crtc->enabled = false;
 157                 break;
 158         }
 159 }
 160
 161
 162 static void dce_virtual_crtc_prepare(struct drm_crtc *crtc)
 163 {
 164         dce_virtual_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 165 }
 166
 167 static void dce_virtual_crtc_commit(struct drm_crtc *crtc)
 168 {
 169         dce_virtual_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
 170 }
 171
 172 static void dce_virtual_crtc_disable(struct drm_crtc *crtc)
 173 {
 174         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 175         struct drm_device *dev = crtc->dev;
 176
 177         if (dev->num_crtcs)
 178                 drm_crtc_vblank_off(crtc);
 179
 180         amdgpu_crtc->enabled = false;
 181         amdgpu_crtc->pll_id = ATOM_PPLL_INVALID;
 182         amdgpu_crtc->encoder = NULL;
 183         amdgpu_crtc->connector = NULL;
 184 }
 185
 186 static int dce_virtual_crtc_mode_set(struct drm_crtc *crtc,
 187                                   struct drm_display_mode *mode,
 188                                   struct drm_display_mode *adjusted_mode,
 189                                   int x, int y, struct drm_framebuffer *old_fb)
 190 {
 191         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 192
 193         /* update the hw version fpr dpm */
 194         amdgpu_crtc->hw_mode = *adjusted_mode;
 195
 196         return 0;
 197 }
 198
 199 static bool dce_virtual_crtc_mode_fixup(struct drm_crtc *crtc,
 200                                      const struct drm_display_mode *mode,
 201                                      struct drm_display_mode *adjusted_mode)
 202 {
 203         return true;
 204 }
 205
 206
 207 static int dce_virtual_crtc_set_base(struct drm_crtc *crtc, int x, int y,
 208                                   struct drm_framebuffer *old_fb)
 209 {
 210         return 0;
 211 }
 212
 213 static int dce_virtual_crtc_set_base_atomic(struct drm_crtc *crtc,
 214                                          struct drm_framebuffer *fb,
 215                                          int x, int y, enum mode_set_atomic state)
 216 {
 217         return 0;
 218 }
 219
 220 static const struct drm_crtc_helper_funcs dce_virtual_crtc_helper_funcs = {
 221         .dpms = dce_virtual_crtc_dpms,
 222         .mode_fixup = dce_virtual_crtc_mode_fixup,
 223         .mode_set = dce_virtual_crtc_mode_set,
 224         .mode_set_base = dce_virtual_crtc_set_base,
 225         .mode_set_base_atomic = dce_virtual_crtc_set_base_atomic,
 226         .prepare = dce_virtual_crtc_prepare,
 227         .commit = dce_virtual_crtc_commit,
 228         .disable = dce_virtual_crtc_disable,
 229         .get_scanout_position = amdgpu_crtc_get_scanout_position,
 230 };
 231
 232 static int dce_virtual_crtc_init(struct amdgpu_device *adev, int index)
 233 {
 234         struct amdgpu_crtc *amdgpu_crtc;
 235
 236         amdgpu_crtc = kzalloc(sizeof(struct amdgpu_crtc) +
 237                               (AMDGPUFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
 238         if (amdgpu_crtc == NULL)
 239                 return -ENOMEM;
 240
 241         drm_crtc_init(adev_to_drm(adev), &amdgpu_crtc->base, &dce_virtual_crtc_funcs);
 242
 243         drm_mode_crtc_set_gamma_size(&amdgpu_crtc->base, 256);
 244         amdgpu_crtc->crtc_id = index;
 245         adev->mode_info.crtcs[index] = amdgpu_crtc;
 246
 247         amdgpu_crtc->pll_id = ATOM_PPLL_INVALID;
 248         amdgpu_crtc->encoder = NULL;
 249         amdgpu_crtc->connector = NULL;
 250         amdgpu_crtc->vsync_timer_enabled = AMDGPU_IRQ_STATE_DISABLE;
 251         drm_crtc_helper_add(&amdgpu_crtc->base, &dce_virtual_crtc_helper_funcs);
 252
 253         hrtimer_init(&amdgpu_crtc->vblank_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 254         hrtimer_set_expires(&amdgpu_crtc->vblank_timer, DCE_VIRTUAL_VBLANK_PERIOD);
 255         amdgpu_crtc->vblank_timer.function = dce_virtual_vblank_timer_handle;
 256         hrtimer_start(&amdgpu_crtc->vblank_timer,
 257                       DCE_VIRTUAL_VBLANK_PERIOD, HRTIMER_MODE_REL);
 258         return 0;
 259 }
 260
 261 static int dce_virtual_early_init(void *handle)
 262 {
 263         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 264
 265         dce_virtual_set_display_funcs(adev);
 266         dce_virtual_set_irq_funcs(adev);
 267
 268         adev->mode_info.num_hpd = 1;
 269         adev->mode_info.num_dig = 1;
 270         return 0;
 271 }
 272
 273 static struct drm_encoder *
 274 dce_virtual_encoder(struct drm_connector *connector)
 275 {
 276         struct drm_encoder *encoder;
 277
 278         drm_connector_for_each_possible_encoder(connector, encoder) {
 279                 if (encoder->encoder_type == DRM_MODE_ENCODER_VIRTUAL)
 280                         return encoder;
 281         }
 282
 283         /* pick the first one */
 284         drm_connector_for_each_possible_encoder(connector, encoder)
 285                 return encoder;
 286
 287         return NULL;
 288 }
 289
 290 static int dce_virtual_get_modes(struct drm_connector *connector)
 291 {
 292         struct drm_device *dev = connector->dev;
 293         struct drm_display_mode *mode = NULL;
 294         unsigned i;
 295         static const struct mode_size {
 296                 int w;
 297                 int h;
 298         } common_modes[] = {
 299                 { 640,  480},
 300                 { 720,  480},
 301                 { 800,  600},
 302                 { 848,  480},
 303                 {1024,  768},
 304                 {1152,  768},
 305                 {1280,  720},
 306                 {1280,  800},
 307                 {1280,  854},
 308                 {1280,  960},
 309                 {1280, 1024},
 310                 {1440,  900},
 311                 {1400, 1050},
 312                 {1680, 1050},
 313                 {1600, 1200},
 314                 {1920, 1080},
 315                 {1920, 1200},
 316                 {2560, 1440},
 317                 {4096, 3112},
 318                 {3656, 2664},
 319                 {3840, 2160},
 320                 {4096, 2160},
 321         };
 322
 323         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 324                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);
 325                 drm_mode_probed_add(connector, mode);
 326         }
 327
 328         return 0;
 329 }
 330
 331 static enum drm_mode_status dce_virtual_mode_valid(struct drm_connector *connector,
 332                                   struct drm_display_mode *mode)
 333 {
 334         return MODE_OK;
 335 }
 336
 337 static int
 338 dce_virtual_dpms(struct drm_connector *connector, int mode)
 339 {
 340         return 0;
 341 }
 342
 343 static int
 344 dce_virtual_set_property(struct drm_connector *connector,
 345                          struct drm_property *property,
 346                          uint64_t val)
 347 {
 348         return 0;
 349 }
 350
 351 static void dce_virtual_destroy(struct drm_connector *connector)
 352 {
 353         drm_connector_unregister(connector);
 354         drm_connector_cleanup(connector);
 355         kfree(connector);
 356 }
 357
 358 static void dce_virtual_force(struct drm_connector *connector)
 359 {
 360         return;
 361 }
 362
 363 static const struct drm_connector_helper_funcs dce_virtual_connector_helper_funcs = {
 364         .get_modes = dce_virtual_get_modes,
 365         .mode_valid = dce_virtual_mode_valid,
 366         .best_encoder = dce_virtual_encoder,
 367 };
 368
 369 static const struct drm_connector_funcs dce_virtual_connector_funcs = {
 370         .dpms = dce_virtual_dpms,
 371         .fill_modes = drm_helper_probe_single_connector_modes,
 372         .set_property = dce_virtual_set_property,
 373         .destroy = dce_virtual_destroy,
 374         .force = dce_virtual_force,
 375 };
 376
 377 static int dce_virtual_sw_init(void *handle)
 378 {
 379         int r, i;
 380         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 381
 382         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_SMU_DISP_TIMER2_TRIGGER, &adev->crtc_irq);
 383         if (r)
 384                 return r;
 385
 386         adev_to_drm(adev)->max_vblank_count = 0;
 387
 388         adev_to_drm(adev)->mode_config.funcs = &amdgpu_mode_funcs;
 389
 390         adev_to_drm(adev)->mode_config.max_width = 16384;
 391         adev_to_drm(adev)->mode_config.max_height = 16384;
 392
 393         adev_to_drm(adev)->mode_config.preferred_depth = 24;
 394         adev_to_drm(adev)->mode_config.prefer_shadow = 1;
 395
 396         adev_to_drm(adev)->mode_config.fb_base = adev->gmc.aper_base;
 397
 398         r = amdgpu_display_modeset_create_props(adev);
 399         if (r)
 400                 return r;
 401
 402         adev_to_drm(adev)->mode_config.max_width = 16384;
 403         adev_to_drm(adev)->mode_config.max_height = 16384;
 404
 405         /* allocate crtcs, encoders, connectors */
 406         for (i = 0; i < adev->mode_info.num_crtc; i++) {
 407                 r = dce_virtual_crtc_init(adev, i);
 408                 if (r)
 409                         return r;
 410                 r = dce_virtual_connector_encoder_init(adev, i);
 411                 if (r)
 412                         return r;
 413         }
 414
 415         drm_kms_helper_poll_init(adev_to_drm(adev));
 416
 417         adev->mode_info.mode_config_initialized = true;
 418         return 0;
 419 }
 420
 421 static int dce_virtual_sw_fini(void *handle)
 422 {
 423         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 424         int i = 0;
 425
 426         for (i = 0; i < adev->mode_info.num_crtc; i++)
 427                 if (adev->mode_info.crtcs[i])
 428                         hrtimer_cancel(&adev->mode_info.crtcs[i]->vblank_timer);
 429
 430         kfree(adev->mode_info.bios_hardcoded_edid);
 431
 432         drm_kms_helper_poll_fini(adev_to_drm(adev));
 433
 434         drm_mode_config_cleanup(adev_to_drm(adev));
 435         /* clear crtcs pointer to avoid dce irq finish routine access freed data */
 436         memset(adev->mode_info.crtcs, 0, sizeof(adev->mode_info.crtcs[0]) * AMDGPU_MAX_CRTCS);
 437         adev->mode_info.mode_config_initialized = false;
 438         return 0;
 439 }
 440
 441 static int dce_virtual_hw_init(void *handle)
 442 {
 443         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 444
 445         switch (adev->asic_type) {
 446 #ifdef CONFIG_DRM_AMDGPU_SI
 447         case CHIP_TAHITI:
 448         case CHIP_PITCAIRN:
 449         case CHIP_VERDE:
 450         case CHIP_OLAND:
 451                 dce_v6_0_disable_dce(adev);
 452                 break;
 453 #endif
 454 #ifdef CONFIG_DRM_AMDGPU_CIK
 455         case CHIP_BONAIRE:
 456         case CHIP_HAWAII:
 457         case CHIP_KAVERI:
 458         case CHIP_KABINI:
 459         case CHIP_MULLINS:
 460                 dce_v8_0_disable_dce(adev);
 461                 break;
 462 #endif
 463         case CHIP_FIJI:
 464         case CHIP_TONGA:
 465                 dce_v10_0_disable_dce(adev);
 466                 break;
 467         case CHIP_CARRIZO:
 468         case CHIP_STONEY:
 469         case CHIP_POLARIS10:
 470         case CHIP_POLARIS11:
 471         case CHIP_VEGAM:
 472                 dce_v11_0_disable_dce(adev);
 473                 break;
 474         case CHIP_TOPAZ:
 475 #ifdef CONFIG_DRM_AMDGPU_SI
 476         case CHIP_HAINAN:
 477 #endif
 478                 /* no DCE */
 479                 break;
 480         default:
 481                 break;
 482         }
 483         return 0;
 484 }
 485
 486 static int dce_virtual_hw_fini(void *handle)
 487 {
 488         return 0;
 489 }
 490
 491 static int dce_virtual_suspend(void *handle)
 492 {
 493         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 494         int r;
 495
 496         r = amdgpu_display_suspend_helper(adev);
 497         if (r)
 498                 return r;
 499         return dce_virtual_hw_fini(handle);
 500 }
 501
 502 static int dce_virtual_resume(void *handle)
 503 {
 504         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 505         int r;
 506
 507         r = dce_virtual_hw_init(handle);
 508         if (r)
 509                 return r;
 510         return amdgpu_display_resume_helper(adev);
 511 }
 512
 513 static bool dce_virtual_is_idle(void *handle)
 514 {
 515         return true;
 516 }
 517
 518 static int dce_virtual_wait_for_idle(void *handle)
 519 {
 520         return 0;
 521 }
 522
 523 static int dce_virtual_soft_reset(void *handle)
 524 {
 525         return 0;
 526 }
 527
 528 static int dce_virtual_set_clockgating_state(void *handle,
 529                                           enum amd_clockgating_state state)
 530 {
 531         return 0;
 532 }
 533
 534 static int dce_virtual_set_powergating_state(void *handle,
 535                                           enum amd_powergating_state state)
 536 {
 537         return 0;
 538 }
 539
 540 static const struct amd_ip_funcs dce_virtual_ip_funcs = {
 541         .name = "dce_virtual",
 542         .early_init = dce_virtual_early_init,
 543         .late_init = NULL,
 544         .sw_init = dce_virtual_sw_init,
 545         .sw_fini = dce_virtual_sw_fini,
 546         .hw_init = dce_virtual_hw_init,
 547         .hw_fini = dce_virtual_hw_fini,
 548         .suspend = dce_virtual_suspend,
 549         .resume = dce_virtual_resume,
 550         .is_idle = dce_virtual_is_idle,
 551         .wait_for_idle = dce_virtual_wait_for_idle,
 552         .soft_reset = dce_virtual_soft_reset,
 553         .set_clockgating_state = dce_virtual_set_clockgating_state,
 554         .set_powergating_state = dce_virtual_set_powergating_state,
 555 };
 556
 557 /* these are handled by the primary encoders */
 558 static void dce_virtual_encoder_prepare(struct drm_encoder *encoder)
 559 {
 560         return;
 561 }
 562
 563 static void dce_virtual_encoder_commit(struct drm_encoder *encoder)
 564 {
 565         return;
 566 }
 567
 568 static void
 569 dce_virtual_encoder_mode_set(struct drm_encoder *encoder,
 570                              struct drm_display_mode *mode,
 571                              struct drm_display_mode *adjusted_mode)
 572 {
 573         return;
 574 }
 575
 576 static void dce_virtual_encoder_disable(struct drm_encoder *encoder)
 577 {
 578         return;
 579 }
 580
 581 static void
 582 dce_virtual_encoder_dpms(struct drm_encoder *encoder, int mode)
 583 {
 584         return;
 585 }
 586
 587 static bool dce_virtual_encoder_mode_fixup(struct drm_encoder *encoder,
 588                                     const struct drm_display_mode *mode,
 589                                     struct drm_display_mode *adjusted_mode)
 590 {
 591         return true;
 592 }
 593
 594 static const struct drm_encoder_helper_funcs dce_virtual_encoder_helper_funcs = {
 595         .dpms = dce_virtual_encoder_dpms,
 596         .mode_fixup = dce_virtual_encoder_mode_fixup,
 597         .prepare = dce_virtual_encoder_prepare,
 598         .mode_set = dce_virtual_encoder_mode_set,
 599         .commit = dce_virtual_encoder_commit,
 600         .disable = dce_virtual_encoder_disable,
 601 };
 602
 603 static void dce_virtual_encoder_destroy(struct drm_encoder *encoder)
 604 {
 605         drm_encoder_cleanup(encoder);
 606         kfree(encoder);
 607 }
 608
 609 static const struct drm_encoder_funcs dce_virtual_encoder_funcs = {
 610         .destroy = dce_virtual_encoder_destroy,
 611 };
 612
 613 static int dce_virtual_connector_encoder_init(struct amdgpu_device *adev,
 614                                               int index)
 615 {
 616         struct drm_encoder *encoder;
 617         struct drm_connector *connector;
 618
 619         /* add a new encoder */
 620         encoder = kzalloc(sizeof(struct drm_encoder), GFP_KERNEL);
 621         if (!encoder)
 622                 return -ENOMEM;
 623         encoder->possible_crtcs = 1 << index;
 624         drm_encoder_init(adev_to_drm(adev), encoder, &dce_virtual_encoder_funcs,
 625                          DRM_MODE_ENCODER_VIRTUAL, NULL);
 626         drm_encoder_helper_add(encoder, &dce_virtual_encoder_helper_funcs);
 627
 628         connector = kzalloc(sizeof(struct drm_connector), GFP_KERNEL);
 629         if (!connector) {
 630                 kfree(encoder);
 631                 return -ENOMEM;
 632         }
 633
 634         /* add a new connector */
 635         drm_connector_init(adev_to_drm(adev), connector, &dce_virtual_connector_funcs,
 636                            DRM_MODE_CONNECTOR_VIRTUAL);
 637         drm_connector_helper_add(connector, &dce_virtual_connector_helper_funcs);
 638         connector->display_info.subpixel_order = SubPixelHorizontalRGB;
 639         connector->interlace_allowed = false;
 640         connector->doublescan_allowed = false;
 641
 642         /* link them */
 643         drm_connector_attach_encoder(connector, encoder);
 644
 645         return 0;
 646 }
 647
 648 static const struct amdgpu_display_funcs dce_virtual_display_funcs = {
 649         .bandwidth_update = &dce_virtual_bandwidth_update,
 650         .vblank_get_counter = &dce_virtual_vblank_get_counter,
 651         .backlight_set_level = NULL,
 652         .backlight_get_level = NULL,
 653         .hpd_sense = &dce_virtual_hpd_sense,
 654         .hpd_set_polarity = &dce_virtual_hpd_set_polarity,
 655         .hpd_get_gpio_reg = &dce_virtual_hpd_get_gpio_reg,
 656         .page_flip = &dce_virtual_page_flip,
 657         .page_flip_get_scanoutpos = &dce_virtual_crtc_get_scanoutpos,
 658         .add_encoder = NULL,
 659         .add_connector = NULL,
 660 };
 661
 662 static void dce_virtual_set_display_funcs(struct amdgpu_device *adev)
 663 {
 664         adev->mode_info.funcs = &dce_virtual_display_funcs;
 665 }
 666
 667 static int dce_virtual_pageflip(struct amdgpu_device *adev,
 668                                 unsigned crtc_id)
 669 {
 670         unsigned long flags;
 671         struct amdgpu_crtc *amdgpu_crtc;
 672         struct amdgpu_flip_work *works;
 673
 674         amdgpu_crtc = adev->mode_info.crtcs[crtc_id];
 675
 676         if (crtc_id >= adev->mode_info.num_crtc) {
 677                 DRM_ERROR("invalid pageflip crtc %d\n", crtc_id);
 678                 return -EINVAL;
 679         }
 680
 681         /* IRQ could occur when in initial stage */
 682         if (amdgpu_crtc == NULL)
 683                 return 0;
 684
 685         spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
 686         works = amdgpu_crtc->pflip_works;
 687         if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED) {
 688                 DRM_DEBUG_DRIVER("amdgpu_crtc->pflip_status = %d != "
 689                         "AMDGPU_FLIP_SUBMITTED(%d)\n",
 690                         amdgpu_crtc->pflip_status,
 691                         AMDGPU_FLIP_SUBMITTED);
 692                 spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
 693                 return 0;
 694         }
 695
 696         /* page flip completed. clean up */
 697         amdgpu_crtc->pflip_status = AMDGPU_FLIP_NONE;
 698         amdgpu_crtc->pflip_works = NULL;
 699
 700         /* wakeup usersapce */
 701         if (works->event)
 702                 drm_crtc_send_vblank_event(&amdgpu_crtc->base, works->event);
 703
 704         spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
 705
 706         drm_crtc_vblank_put(&amdgpu_crtc->base);
 707         amdgpu_bo_unref(&works->old_abo);
 708         kfree(works->shared);
 709         kfree(works);
 710
 711         return 0;
 712 }
 713
 714 static enum hrtimer_restart dce_virtual_vblank_timer_handle(struct hrtimer *vblank_timer)
 715 {
 716         struct amdgpu_crtc *amdgpu_crtc = container_of(vblank_timer,
 717                                                        struct amdgpu_crtc, vblank_timer);
 718         struct drm_device *ddev = amdgpu_crtc->base.dev;
 719         struct amdgpu_device *adev = drm_to_adev(ddev);
 720         struct amdgpu_irq_src *source = adev->irq.client[AMDGPU_IRQ_CLIENTID_LEGACY].sources
 721                 [VISLANDS30_IV_SRCID_SMU_DISP_TIMER2_TRIGGER];
 722         int irq_type = amdgpu_display_crtc_idx_to_irq_type(adev,
 723                                                 amdgpu_crtc->crtc_id);
 724
 725         if (amdgpu_irq_enabled(adev, source, irq_type)) {
 726                 drm_handle_vblank(ddev, amdgpu_crtc->crtc_id);
 727                 dce_virtual_pageflip(adev, amdgpu_crtc->crtc_id);
 728         }
 729         hrtimer_start(vblank_timer, DCE_VIRTUAL_VBLANK_PERIOD,
 730                       HRTIMER_MODE_REL);
 731
 732         return HRTIMER_NORESTART;
 733 }
 734
 735 static void dce_virtual_set_crtc_vblank_interrupt_state(struct amdgpu_device *adev,
 736                                                         int crtc,
 737                                                         enum amdgpu_interrupt_state state)
 738 {
 739         if (crtc >= adev->mode_info.num_crtc || !adev->mode_info.crtcs[crtc]) {
 740                 DRM_DEBUG("invalid crtc %d\n", crtc);
 741                 return;
 742         }
 743
 744         adev->mode_info.crtcs[crtc]->vsync_timer_enabled = state;
 745         DRM_DEBUG("[FM]set crtc %d vblank interrupt state %d\n", crtc, state);
 746 }
 747
 748
 749 static int dce_virtual_set_crtc_irq_state(struct amdgpu_device *adev,
 750                                           struct amdgpu_irq_src *source,
 751                                           unsigned type,
 752                                           enum amdgpu_interrupt_state state)
 753 {
 754         if (type > AMDGPU_CRTC_IRQ_VBLANK6)
 755                 return -EINVAL;
 756
 757         dce_virtual_set_crtc_vblank_interrupt_state(adev, type, state);
 758
 759         return 0;
 760 }
 761
 762 static const struct amdgpu_irq_src_funcs dce_virtual_crtc_irq_funcs = {
 763         .set = dce_virtual_set_crtc_irq_state,
 764         .process = NULL,
 765 };
 766
 767 static void dce_virtual_set_irq_funcs(struct amdgpu_device *adev)
 768 {
 769         adev->crtc_irq.num_types = adev->mode_info.num_crtc;
 770         adev->crtc_irq.funcs = &dce_virtual_crtc_irq_funcs;
 771 }
 772
 773 const struct amdgpu_ip_block_version dce_virtual_ip_block =
 774 {
 775         .type = AMD_IP_BLOCK_TYPE_DCE,
 776         .major = 1,
 777         .minor = 0,
 778         .rev = 0,
 779         .funcs = &dce_virtual_ip_funcs,
 780 };