drivers/gpu/drm/nouveau/nouveau_display.c

   1 /*
   2  * Copyright (C) 2008 Maarten Maathuis.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include <drm/drmP.h>
  28 #include <drm/drm_crtc_helper.h>
  29 #include <drm/ttm/ttm_execbuf_util.h>
  30
  31 #include "nouveau_fbcon.h"
  32 #include "dispnv04/hw.h"
  33 #include "nouveau_crtc.h"
  34 #include "nouveau_dma.h"
  35 #include "nouveau_gem.h"
  36 #include "nouveau_connector.h"
  37 #include "nv50_display.h"
  38
  39 #include "nouveau_fence.h"
  40
  41 #include <subdev/bios/gpio.h>
  42 #include <subdev/gpio.h>
  43 #include <engine/disp.h>
  44
  45 #include <core/class.h>
  46
  47 static void
  48 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
  49 {
  50         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  51
  52         if (fb->nvbo)
  53                 drm_gem_object_unreference_unlocked(fb->nvbo->gem);
  54
  55         drm_framebuffer_cleanup(drm_fb);
  56         kfree(fb);
  57 }
  58
  59 static int
  60 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
  61                                        struct drm_file *file_priv,
  62                                        unsigned int *handle)
  63 {
  64         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  65
  66         return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle);
  67 }
  68
  69 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
  70         .destroy = nouveau_user_framebuffer_destroy,
  71         .create_handle = nouveau_user_framebuffer_create_handle,
  72 };
  73
  74 int
  75 nouveau_framebuffer_init(struct drm_device *dev,
  76                          struct nouveau_framebuffer *nv_fb,
  77                          struct drm_mode_fb_cmd2 *mode_cmd,
  78                          struct nouveau_bo *nvbo)
  79 {
  80         struct nouveau_drm *drm = nouveau_drm(dev);
  81         struct drm_framebuffer *fb = &nv_fb->base;
  82         int ret;
  83
  84         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
  85         nv_fb->nvbo = nvbo;
  86
  87         if (nv_device(drm->device)->card_type >= NV_50) {
  88                 u32 tile_flags = nouveau_bo_tile_layout(nvbo);
  89                 if (tile_flags == 0x7a00 ||
  90                     tile_flags == 0xfe00)
  91                         nv_fb->r_dma = NvEvoFB32;
  92                 else
  93                 if (tile_flags == 0x7000)
  94                         nv_fb->r_dma = NvEvoFB16;
  95                 else
  96                         nv_fb->r_dma = NvEvoVRAM_LP;
  97
  98                 switch (fb->depth) {
  99                 case  8: nv_fb->r_format = 0x1e00; break;
 100                 case 15: nv_fb->r_format = 0xe900; break;
 101                 case 16: nv_fb->r_format = 0xe800; break;
 102                 case 24:
 103                 case 32: nv_fb->r_format = 0xcf00; break;
 104                 case 30: nv_fb->r_format = 0xd100; break;
 105                 default:
 106                          NV_ERROR(drm, "unknown depth %d\n", fb->depth);
 107                          return -EINVAL;
 108                 }
 109
 110                 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) {
 111                         NV_ERROR(drm, "framebuffer requires contiguous bo\n");
 112                         return -EINVAL;
 113                 }
 114
 115                 if (nv_device(drm->device)->chipset == 0x50)
 116                         nv_fb->r_format |= (tile_flags << 8);
 117
 118                 if (!tile_flags) {
 119                         if (nv_device(drm->device)->card_type < NV_D0)
 120                                 nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
 121                         else
 122                                 nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
 123                 } else {
 124                         u32 mode = nvbo->tile_mode;
 125                         if (nv_device(drm->device)->card_type >= NV_C0)
 126                                 mode >>= 4;
 127                         nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
 128                 }
 129         }
 130
 131         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 132         if (ret) {
 133                 return ret;
 134         }
 135
 136         return 0;
 137 }
 138
 139 static struct drm_framebuffer *
 140 nouveau_user_framebuffer_create(struct drm_device *dev,
 141                                 struct drm_file *file_priv,
 142                                 struct drm_mode_fb_cmd2 *mode_cmd)
 143 {
 144         struct nouveau_framebuffer *nouveau_fb;
 145         struct drm_gem_object *gem;
 146         int ret = -ENOMEM;
 147
 148         gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 149         if (!gem)
 150                 return ERR_PTR(-ENOENT);
 151
 152         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 153         if (!nouveau_fb)
 154                 goto err_unref;
 155
 156         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 157         if (ret)
 158                 goto err;
 159
 160         return &nouveau_fb->base;
 161
 162 err:
 163         kfree(nouveau_fb);
 164 err_unref:
 165         drm_gem_object_unreference(gem);
 166         return ERR_PTR(ret);
 167 }
 168
 169 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 170         .fb_create = nouveau_user_framebuffer_create,
 171         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 172 };
 173
 174
 175 struct nouveau_drm_prop_enum_list {
 176         u8 gen_mask;
 177         int type;
 178         char *name;
 179 };
 180
 181 static struct nouveau_drm_prop_enum_list underscan[] = {
 182         { 6, UNDERSCAN_AUTO, "auto" },
 183         { 6, UNDERSCAN_OFF, "off" },
 184         { 6, UNDERSCAN_ON, "on" },
 185         {}
 186 };
 187
 188 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 189         { 7, DITHERING_MODE_AUTO, "auto" },
 190         { 7, DITHERING_MODE_OFF, "off" },
 191         { 1, DITHERING_MODE_ON, "on" },
 192         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 193         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 194         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 195         {}
 196 };
 197
 198 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 199         { 6, DITHERING_DEPTH_AUTO, "auto" },
 200         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 201         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 202         {}
 203 };
 204
 205 #define PROP_ENUM(p,gen,n,list) do {                                           \
 206         struct nouveau_drm_prop_enum_list *l = (list);                         \
 207         int c = 0;                                                             \
 208         while (l->gen_mask) {                                                  \
 209                 if (l->gen_mask & (1 << (gen)))                                \
 210                         c++;                                                   \
 211                 l++;                                                           \
 212         }                                                                      \
 213         if (c) {                                                               \
 214                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 215                 l = (list);                                                    \
 216                 c = 0;                                                         \
 217                 while (p && l->gen_mask) {                                     \
 218                         if (l->gen_mask & (1 << (gen))) {                      \
 219                                 drm_property_add_enum(p, c, l->type, l->name); \
 220                                 c++;                                           \
 221                         }                                                      \
 222                         l++;                                                   \
 223                 }                                                              \
 224         }                                                                      \
 225 } while(0)
 226
 227 int
 228 nouveau_display_init(struct drm_device *dev)
 229 {
 230         struct nouveau_drm *drm = nouveau_drm(dev);
 231         struct nouveau_display *disp = nouveau_display(dev);
 232         struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
 233         struct drm_connector *connector;
 234         int ret;
 235
 236         ret = disp->init(dev);
 237         if (ret)
 238                 return ret;
 239
 240         /* enable polling for external displays */
 241         drm_kms_helper_poll_enable(dev);
 242
 243         /* enable hotplug interrupts */
 244         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 245                 struct nouveau_connector *conn = nouveau_connector(connector);
 246                 if (gpio && conn->hpd.func != DCB_GPIO_UNUSED) {
 247                         nouveau_event_get(gpio->events, conn->hpd.line,
 248                                          &conn->hpd_func);
 249                 }
 250         }
 251
 252         return ret;
 253 }
 254
 255 void
 256 nouveau_display_fini(struct drm_device *dev)
 257 {
 258         struct nouveau_drm *drm = nouveau_drm(dev);
 259         struct nouveau_display *disp = nouveau_display(dev);
 260         struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
 261         struct drm_connector *connector;
 262
 263         /* disable hotplug interrupts */
 264         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 265                 struct nouveau_connector *conn = nouveau_connector(connector);
 266                 if (gpio && conn->hpd.func != DCB_GPIO_UNUSED) {
 267                         nouveau_event_put(gpio->events, conn->hpd.line,
 268                                          &conn->hpd_func);
 269                 }
 270         }
 271
 272         drm_kms_helper_poll_disable(dev);
 273         disp->fini(dev);
 274 }
 275
 276 int
 277 nouveau_display_create(struct drm_device *dev)
 278 {
 279         struct nouveau_drm *drm = nouveau_drm(dev);
 280         struct nouveau_display *disp;
 281         u32 pclass = dev->pdev->class >> 8;
 282         int ret, gen;
 283
 284         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 285         if (!disp)
 286                 return -ENOMEM;
 287
 288         drm_mode_config_init(dev);
 289         drm_mode_create_scaling_mode_property(dev);
 290         drm_mode_create_dvi_i_properties(dev);
 291
 292         if (nv_device(drm->device)->card_type < NV_50)
 293                 gen = 0;
 294         else
 295         if (nv_device(drm->device)->card_type < NV_D0)
 296                 gen = 1;
 297         else
 298                 gen = 2;
 299
 300         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 301         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 302         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 303
 304         disp->underscan_hborder_property =
 305                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 306
 307         disp->underscan_vborder_property =
 308                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 309
 310         if (gen >= 1) {
 311                 /* -90..+90 */
 312                 disp->vibrant_hue_property =
 313                         drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 314
 315                 /* -100..+100 */
 316                 disp->color_vibrance_property =
 317                         drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 318         }
 319
 320         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 321         dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
 322
 323         dev->mode_config.min_width = 0;
 324         dev->mode_config.min_height = 0;
 325         if (nv_device(drm->device)->card_type < NV_10) {
 326                 dev->mode_config.max_width = 2048;
 327                 dev->mode_config.max_height = 2048;
 328         } else
 329         if (nv_device(drm->device)->card_type < NV_50) {
 330                 dev->mode_config.max_width = 4096;
 331                 dev->mode_config.max_height = 4096;
 332         } else {
 333                 dev->mode_config.max_width = 8192;
 334                 dev->mode_config.max_height = 8192;
 335         }
 336
 337         dev->mode_config.preferred_depth = 24;
 338         dev->mode_config.prefer_shadow = 1;
 339
 340         drm_kms_helper_poll_init(dev);
 341         drm_kms_helper_poll_disable(dev);
 342
 343         if (nouveau_modeset == 1 ||
 344             (nouveau_modeset < 0 && pclass == PCI_CLASS_DISPLAY_VGA)) {
 345                 if (drm->vbios.dcb.entries) {
 346                         if (nv_device(drm->device)->card_type < NV_50)
 347                                 ret = nv04_display_create(dev);
 348                         else
 349                                 ret = nv50_display_create(dev);
 350                 } else {
 351                         ret = 0;
 352                 }
 353
 354                 if (ret)
 355                         goto disp_create_err;
 356
 357                 if (dev->mode_config.num_crtc) {
 358                         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 359                         if (ret)
 360                                 goto vblank_err;
 361                 }
 362
 363                 nouveau_backlight_init(dev);
 364         }
 365
 366         return 0;
 367
 368 vblank_err:
 369         disp->dtor(dev);
 370 disp_create_err:
 371         drm_kms_helper_poll_fini(dev);
 372         drm_mode_config_cleanup(dev);
 373         return ret;
 374 }
 375
 376 void
 377 nouveau_display_destroy(struct drm_device *dev)
 378 {
 379         struct nouveau_display *disp = nouveau_display(dev);
 380
 381         nouveau_backlight_exit(dev);
 382         drm_vblank_cleanup(dev);
 383
 384         drm_kms_helper_poll_fini(dev);
 385         drm_mode_config_cleanup(dev);
 386
 387         if (disp->dtor)
 388                 disp->dtor(dev);
 389
 390         nouveau_drm(dev)->display = NULL;
 391         kfree(disp);
 392 }
 393
 394 int
 395 nouveau_display_suspend(struct drm_device *dev)
 396 {
 397         struct nouveau_drm *drm = nouveau_drm(dev);
 398         struct drm_crtc *crtc;
 399
 400         nouveau_display_fini(dev);
 401
 402         NV_SUSPEND(drm, "unpinning framebuffer(s)...\n");
 403         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 404                 struct nouveau_framebuffer *nouveau_fb;
 405
 406                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 407                 if (!nouveau_fb || !nouveau_fb->nvbo)
 408                         continue;
 409
 410                 nouveau_bo_unpin(nouveau_fb->nvbo);
 411         }
 412
 413         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 414                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 415
 416                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 417                 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 418         }
 419
 420         return 0;
 421 }
 422
 423 void
 424 nouveau_display_repin(struct drm_device *dev)
 425 {
 426         struct nouveau_drm *drm = nouveau_drm(dev);
 427         struct drm_crtc *crtc;
 428         int ret;
 429
 430         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 431                 struct nouveau_framebuffer *nouveau_fb;
 432
 433                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 434                 if (!nouveau_fb || !nouveau_fb->nvbo)
 435                         continue;
 436
 437                 nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
 438         }
 439
 440         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 441                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 442
 443                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
 444                 if (!ret)
 445                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 446                 if (ret)
 447                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 448         }
 449 }
 450
 451 void
 452 nouveau_display_resume(struct drm_device *dev)
 453 {
 454         struct drm_crtc *crtc;
 455         nouveau_display_init(dev);
 456
 457         /* Force CLUT to get re-loaded during modeset */
 458         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 459                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 460
 461                 nv_crtc->lut.depth = 0;
 462         }
 463
 464         drm_helper_resume_force_mode(dev);
 465
 466         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 467                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 468                 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
 469
 470                 nv_crtc->cursor.set_offset(nv_crtc, offset);
 471                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 472                                                  nv_crtc->cursor_saved_y);
 473         }
 474 }
 475
 476 static int
 477 nouveau_page_flip_emit(struct nouveau_channel *chan,
 478                        struct nouveau_bo *old_bo,
 479                        struct nouveau_bo *new_bo,
 480                        struct nouveau_page_flip_state *s,
 481                        struct nouveau_fence **pfence)
 482 {
 483         struct nouveau_fence_chan *fctx = chan->fence;
 484         struct nouveau_drm *drm = chan->drm;
 485         struct drm_device *dev = drm->dev;
 486         unsigned long flags;
 487         int ret;
 488
 489         /* Queue it to the pending list */
 490         spin_lock_irqsave(&dev->event_lock, flags);
 491         list_add_tail(&s->head, &fctx->flip);
 492         spin_unlock_irqrestore(&dev->event_lock, flags);
 493
 494         /* Synchronize with the old framebuffer */
 495         ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
 496         if (ret)
 497                 goto fail;
 498
 499         /* Emit the pageflip */
 500         ret = RING_SPACE(chan, 3);
 501         if (ret)
 502                 goto fail;
 503
 504         if (nv_device(drm->device)->card_type < NV_C0) {
 505                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 506                 OUT_RING  (chan, 0x00000000);
 507                 OUT_RING  (chan, 0x00000000);
 508         } else {
 509                 BEGIN_NVC0(chan, 0, NV10_SUBCHAN_REF_CNT, 1);
 510                 OUT_RING  (chan, 0);
 511                 BEGIN_IMC0(chan, 0, NVSW_SUBCHAN_PAGE_FLIP, 0x0000);
 512         }
 513         FIRE_RING (chan);
 514
 515         ret = nouveau_fence_new(chan, false, pfence);
 516         if (ret)
 517                 goto fail;
 518
 519         return 0;
 520 fail:
 521         spin_lock_irqsave(&dev->event_lock, flags);
 522         list_del(&s->head);
 523         spin_unlock_irqrestore(&dev->event_lock, flags);
 524         return ret;
 525 }
 526
 527 int
 528 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 529                        struct drm_pending_vblank_event *event,
 530                        uint32_t page_flip_flags)
 531 {
 532         struct drm_device *dev = crtc->dev;
 533         struct nouveau_drm *drm = nouveau_drm(dev);
 534         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->fb)->nvbo;
 535         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 536         struct nouveau_page_flip_state *s;
 537         struct nouveau_channel *chan = NULL;
 538         struct nouveau_fence *fence;
 539         struct ttm_validate_buffer resv[2] = {
 540                 { .bo = &old_bo->bo },
 541                 { .bo = &new_bo->bo },
 542         };
 543         struct ww_acquire_ctx ticket;
 544         LIST_HEAD(res);
 545         int ret;
 546
 547         if (!drm->channel)
 548                 return -ENODEV;
 549
 550         s = kzalloc(sizeof(*s), GFP_KERNEL);
 551         if (!s)
 552                 return -ENOMEM;
 553
 554         /* Choose the channel the flip will be handled in */
 555         spin_lock(&old_bo->bo.bdev->fence_lock);
 556         fence = new_bo->bo.sync_obj;
 557         if (fence)
 558                 chan = fence->channel;
 559         if (!chan)
 560                 chan = drm->channel;
 561         spin_unlock(&old_bo->bo.bdev->fence_lock);
 562
 563         if (new_bo != old_bo) {
 564                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
 565                 if (ret)
 566                         goto fail_free;
 567
 568                 list_add(&resv[1].head, &res);
 569         }
 570         list_add(&resv[0].head, &res);
 571
 572         mutex_lock(&chan->cli->mutex);
 573         ret = ttm_eu_reserve_buffers(&ticket, &res);
 574         if (ret)
 575                 goto fail_unpin;
 576
 577         /* Initialize a page flip struct */
 578         *s = (struct nouveau_page_flip_state)
 579                 { { }, event, nouveau_crtc(crtc)->index,
 580                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 581                   new_bo->bo.offset };
 582
 583         /* Emit a page flip */
 584         if (nv_device(drm->device)->card_type >= NV_50) {
 585                 ret = nv50_display_flip_next(crtc, fb, chan, 0);
 586                 if (ret)
 587                         goto fail_unreserve;
 588         } else {
 589                 struct nv04_display *dispnv04 = nv04_display(dev);
 590                 nouveau_bo_ref(new_bo, &dispnv04->image[nouveau_crtc(crtc)->index]);
 591         }
 592
 593         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 594         mutex_unlock(&chan->cli->mutex);
 595         if (ret)
 596                 goto fail_unreserve;
 597
 598         /* Update the crtc struct and cleanup */
 599         crtc->fb = fb;
 600
 601         ttm_eu_fence_buffer_objects(&ticket, &res, fence);
 602         if (old_bo != new_bo)
 603                 nouveau_bo_unpin(old_bo);
 604         nouveau_fence_unref(&fence);
 605         return 0;
 606
 607 fail_unreserve:
 608         ttm_eu_backoff_reservation(&ticket, &res);
 609 fail_unpin:
 610         mutex_unlock(&chan->cli->mutex);
 611         if (old_bo != new_bo)
 612                 nouveau_bo_unpin(new_bo);
 613 fail_free:
 614         kfree(s);
 615         return ret;
 616 }
 617
 618 int
 619 nouveau_finish_page_flip(struct nouveau_channel *chan,
 620                          struct nouveau_page_flip_state *ps)
 621 {
 622         struct nouveau_fence_chan *fctx = chan->fence;
 623         struct nouveau_drm *drm = chan->drm;
 624         struct drm_device *dev = drm->dev;
 625         struct nouveau_page_flip_state *s;
 626         unsigned long flags;
 627
 628         spin_lock_irqsave(&dev->event_lock, flags);
 629
 630         if (list_empty(&fctx->flip)) {
 631                 NV_ERROR(drm, "unexpected pageflip\n");
 632                 spin_unlock_irqrestore(&dev->event_lock, flags);
 633                 return -EINVAL;
 634         }
 635
 636         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 637         if (s->event)
 638                 drm_send_vblank_event(dev, -1, s->event);
 639
 640         list_del(&s->head);
 641         if (ps)
 642                 *ps = *s;
 643         kfree(s);
 644
 645         spin_unlock_irqrestore(&dev->event_lock, flags);
 646         return 0;
 647 }
 648
 649 int
 650 nouveau_flip_complete(void *data)
 651 {
 652         struct nouveau_channel *chan = data;
 653         struct nouveau_drm *drm = chan->drm;
 654         struct nouveau_page_flip_state state;
 655
 656         if (!nouveau_finish_page_flip(chan, &state)) {
 657                 if (nv_device(drm->device)->card_type < NV_50) {
 658                         nv_set_crtc_base(drm->dev, state.crtc, state.offset +
 659                                          state.y * state.pitch +
 660                                          state.x * state.bpp / 8);
 661                 }
 662         }
 663
 664         return 0;
 665 }
 666
 667 int
 668 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 669                             struct drm_mode_create_dumb *args)
 670 {
 671         struct nouveau_bo *bo;
 672         int ret;
 673
 674         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 675         args->size = args->pitch * args->height;
 676         args->size = roundup(args->size, PAGE_SIZE);
 677
 678         ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 679         if (ret)
 680                 return ret;
 681
 682         ret = drm_gem_handle_create(file_priv, bo->gem, &args->handle);
 683         drm_gem_object_unreference_unlocked(bo->gem);
 684         return ret;
 685 }
 686
 687 int
 688 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 689                                 struct drm_device *dev,
 690                                 uint32_t handle, uint64_t *poffset)
 691 {
 692         struct drm_gem_object *gem;
 693
 694         gem = drm_gem_object_lookup(dev, file_priv, handle);
 695         if (gem) {
 696                 struct nouveau_bo *bo = gem->driver_private;
 697                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
 698                 drm_gem_object_unreference_unlocked(gem);
 699                 return 0;
 700         }
 701
 702         return -ENOENT;
 703 }