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
  30 #include "nouveau_fbcon.h"
  31 #include "dispnv04/hw.h"
  32 #include "nouveau_crtc.h"
  33 #include "nouveau_dma.h"
  34 #include "nouveau_gem.h"
  35 #include "nouveau_connector.h"
  36 #include "nv50_display.h"
  37
  38 #include "nouveau_fence.h"
  39
  40 #include <subdev/bios/gpio.h>
  41 #include <subdev/gpio.h>
  42 #include <engine/disp.h>
  43
  44 #include <core/class.h>
  45
  46 static void
  47 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
  48 {
  49         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  50
  51         if (fb->nvbo)
  52                 drm_gem_object_unreference_unlocked(fb->nvbo->gem);
  53
  54         drm_framebuffer_cleanup(drm_fb);
  55         kfree(fb);
  56 }
  57
  58 static int
  59 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
  60                                        struct drm_file *file_priv,
  61                                        unsigned int *handle)
  62 {
  63         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  64
  65         return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle);
  66 }
  67
  68 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
  69         .destroy = nouveau_user_framebuffer_destroy,
  70         .create_handle = nouveau_user_framebuffer_create_handle,
  71 };
  72
  73 int
  74 nouveau_framebuffer_init(struct drm_device *dev,
  75                          struct nouveau_framebuffer *nv_fb,
  76                          struct drm_mode_fb_cmd2 *mode_cmd,
  77                          struct nouveau_bo *nvbo)
  78 {
  79         struct nouveau_drm *drm = nouveau_drm(dev);
  80         struct drm_framebuffer *fb = &nv_fb->base;
  81         int ret;
  82
  83         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
  84         nv_fb->nvbo = nvbo;
  85
  86         if (nv_device(drm->device)->card_type >= NV_50) {
  87                 u32 tile_flags = nouveau_bo_tile_layout(nvbo);
  88                 if (tile_flags == 0x7a00 ||
  89                     tile_flags == 0xfe00)
  90                         nv_fb->r_dma = NvEvoFB32;
  91                 else
  92                 if (tile_flags == 0x7000)
  93                         nv_fb->r_dma = NvEvoFB16;
  94                 else
  95                         nv_fb->r_dma = NvEvoVRAM_LP;
  96
  97                 switch (fb->depth) {
  98                 case  8: nv_fb->r_format = 0x1e00; break;
  99                 case 15: nv_fb->r_format = 0xe900; break;
 100                 case 16: nv_fb->r_format = 0xe800; break;
 101                 case 24:
 102                 case 32: nv_fb->r_format = 0xcf00; break;
 103                 case 30: nv_fb->r_format = 0xd100; break;
 104                 default:
 105                          NV_ERROR(drm, "unknown depth %d\n", fb->depth);
 106                          return -EINVAL;
 107                 }
 108
 109                 if (nv_device(drm->device)->chipset == 0x50)
 110                         nv_fb->r_format |= (tile_flags << 8);
 111
 112                 if (!tile_flags) {
 113                         if (nv_device(drm->device)->card_type < NV_D0)
 114                                 nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
 115                         else
 116                                 nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
 117                 } else {
 118                         u32 mode = nvbo->tile_mode;
 119                         if (nv_device(drm->device)->card_type >= NV_C0)
 120                                 mode >>= 4;
 121                         nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
 122                 }
 123         }
 124
 125         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 126         if (ret) {
 127                 return ret;
 128         }
 129
 130         return 0;
 131 }
 132
 133 static struct drm_framebuffer *
 134 nouveau_user_framebuffer_create(struct drm_device *dev,
 135                                 struct drm_file *file_priv,
 136                                 struct drm_mode_fb_cmd2 *mode_cmd)
 137 {
 138         struct nouveau_framebuffer *nouveau_fb;
 139         struct drm_gem_object *gem;
 140         int ret;
 141
 142         gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 143         if (!gem)
 144                 return ERR_PTR(-ENOENT);
 145
 146         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 147         if (!nouveau_fb)
 148                 return ERR_PTR(-ENOMEM);
 149
 150         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 151         if (ret) {
 152                 drm_gem_object_unreference(gem);
 153                 return ERR_PTR(ret);
 154         }
 155
 156         return &nouveau_fb->base;
 157 }
 158
 159 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 160         .fb_create = nouveau_user_framebuffer_create,
 161         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 162 };
 163
 164
 165 struct nouveau_drm_prop_enum_list {
 166         u8 gen_mask;
 167         int type;
 168         char *name;
 169 };
 170
 171 static struct nouveau_drm_prop_enum_list underscan[] = {
 172         { 6, UNDERSCAN_AUTO, "auto" },
 173         { 6, UNDERSCAN_OFF, "off" },
 174         { 6, UNDERSCAN_ON, "on" },
 175         {}
 176 };
 177
 178 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 179         { 7, DITHERING_MODE_AUTO, "auto" },
 180         { 7, DITHERING_MODE_OFF, "off" },
 181         { 1, DITHERING_MODE_ON, "on" },
 182         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 183         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 184         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 185         {}
 186 };
 187
 188 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 189         { 6, DITHERING_DEPTH_AUTO, "auto" },
 190         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 191         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 192         {}
 193 };
 194
 195 #define PROP_ENUM(p,gen,n,list) do {                                           \
 196         struct nouveau_drm_prop_enum_list *l = (list);                         \
 197         int c = 0;                                                             \
 198         while (l->gen_mask) {                                                  \
 199                 if (l->gen_mask & (1 << (gen)))                                \
 200                         c++;                                                   \
 201                 l++;                                                           \
 202         }                                                                      \
 203         if (c) {                                                               \
 204                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 205                 l = (list);                                                    \
 206                 c = 0;                                                         \
 207                 while (p && l->gen_mask) {                                     \
 208                         if (l->gen_mask & (1 << (gen))) {                      \
 209                                 drm_property_add_enum(p, c, l->type, l->name); \
 210                                 c++;                                           \
 211                         }                                                      \
 212                         l++;                                                   \
 213                 }                                                              \
 214         }                                                                      \
 215 } while(0)
 216
 217 int
 218 nouveau_display_init(struct drm_device *dev)
 219 {
 220         struct nouveau_drm *drm = nouveau_drm(dev);
 221         struct nouveau_display *disp = nouveau_display(dev);
 222         struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
 223         struct drm_connector *connector;
 224         int ret;
 225
 226         ret = disp->init(dev);
 227         if (ret)
 228                 return ret;
 229
 230         /* enable polling for external displays */
 231         drm_kms_helper_poll_enable(dev);
 232
 233         /* enable hotplug interrupts */
 234         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 235                 struct nouveau_connector *conn = nouveau_connector(connector);
 236                 if (gpio && conn->hpd.func != DCB_GPIO_UNUSED) {
 237                         nouveau_event_get(gpio->events, conn->hpd.line,
 238                                          &conn->hpd_func);
 239                 }
 240         }
 241
 242         return ret;
 243 }
 244
 245 void
 246 nouveau_display_fini(struct drm_device *dev)
 247 {
 248         struct nouveau_drm *drm = nouveau_drm(dev);
 249         struct nouveau_display *disp = nouveau_display(dev);
 250         struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
 251         struct drm_connector *connector;
 252
 253         /* disable hotplug interrupts */
 254         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 255                 struct nouveau_connector *conn = nouveau_connector(connector);
 256                 if (gpio && conn->hpd.func != DCB_GPIO_UNUSED) {
 257                         nouveau_event_put(gpio->events, conn->hpd.line,
 258                                          &conn->hpd_func);
 259                 }
 260         }
 261
 262         drm_kms_helper_poll_disable(dev);
 263         disp->fini(dev);
 264 }
 265
 266 int
 267 nouveau_display_create(struct drm_device *dev)
 268 {
 269         struct nouveau_drm *drm = nouveau_drm(dev);
 270         struct nouveau_display *disp;
 271         u32 pclass = dev->pdev->class >> 8;
 272         int ret, gen;
 273
 274         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 275         if (!disp)
 276                 return -ENOMEM;
 277
 278         drm_mode_config_init(dev);
 279         drm_mode_create_scaling_mode_property(dev);
 280         drm_mode_create_dvi_i_properties(dev);
 281
 282         if (nv_device(drm->device)->card_type < NV_50)
 283                 gen = 0;
 284         else
 285         if (nv_device(drm->device)->card_type < NV_D0)
 286                 gen = 1;
 287         else
 288                 gen = 2;
 289
 290         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 291         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 292         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 293
 294         disp->underscan_hborder_property =
 295                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 296
 297         disp->underscan_vborder_property =
 298                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 299
 300         if (gen >= 1) {
 301                 /* -90..+90 */
 302                 disp->vibrant_hue_property =
 303                         drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 304
 305                 /* -100..+100 */
 306                 disp->color_vibrance_property =
 307                         drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 308         }
 309
 310         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 311         dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
 312
 313         dev->mode_config.min_width = 0;
 314         dev->mode_config.min_height = 0;
 315         if (nv_device(drm->device)->card_type < NV_10) {
 316                 dev->mode_config.max_width = 2048;
 317                 dev->mode_config.max_height = 2048;
 318         } else
 319         if (nv_device(drm->device)->card_type < NV_50) {
 320                 dev->mode_config.max_width = 4096;
 321                 dev->mode_config.max_height = 4096;
 322         } else {
 323                 dev->mode_config.max_width = 8192;
 324                 dev->mode_config.max_height = 8192;
 325         }
 326
 327         dev->mode_config.preferred_depth = 24;
 328         dev->mode_config.prefer_shadow = 1;
 329
 330         drm_kms_helper_poll_init(dev);
 331         drm_kms_helper_poll_disable(dev);
 332
 333         if (nouveau_modeset == 1 ||
 334             (nouveau_modeset < 0 && pclass == PCI_CLASS_DISPLAY_VGA)) {
 335                 if (nv_device(drm->device)->card_type < NV_50)
 336                         ret = nv04_display_create(dev);
 337                 else
 338                         ret = nv50_display_create(dev);
 339                 if (ret)
 340                         goto disp_create_err;
 341
 342                 if (dev->mode_config.num_crtc) {
 343                         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 344                         if (ret)
 345                                 goto vblank_err;
 346                 }
 347
 348                 nouveau_backlight_init(dev);
 349         }
 350
 351         return 0;
 352
 353 vblank_err:
 354         disp->dtor(dev);
 355 disp_create_err:
 356         drm_kms_helper_poll_fini(dev);
 357         drm_mode_config_cleanup(dev);
 358         return ret;
 359 }
 360
 361 void
 362 nouveau_display_destroy(struct drm_device *dev)
 363 {
 364         struct nouveau_display *disp = nouveau_display(dev);
 365
 366         nouveau_backlight_exit(dev);
 367         drm_vblank_cleanup(dev);
 368
 369         drm_kms_helper_poll_fini(dev);
 370         drm_mode_config_cleanup(dev);
 371
 372         if (disp->dtor)
 373                 disp->dtor(dev);
 374
 375         nouveau_drm(dev)->display = NULL;
 376         kfree(disp);
 377 }
 378
 379 int
 380 nouveau_display_suspend(struct drm_device *dev)
 381 {
 382         struct nouveau_drm *drm = nouveau_drm(dev);
 383         struct drm_crtc *crtc;
 384
 385         nouveau_display_fini(dev);
 386
 387         NV_INFO(drm, "unpinning framebuffer(s)...\n");
 388         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 389                 struct nouveau_framebuffer *nouveau_fb;
 390
 391                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 392                 if (!nouveau_fb || !nouveau_fb->nvbo)
 393                         continue;
 394
 395                 nouveau_bo_unpin(nouveau_fb->nvbo);
 396         }
 397
 398         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 399                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 400
 401                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 402                 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 403         }
 404
 405         return 0;
 406 }
 407
 408 void
 409 nouveau_display_resume(struct drm_device *dev)
 410 {
 411         struct nouveau_drm *drm = nouveau_drm(dev);
 412         struct drm_crtc *crtc;
 413         int ret;
 414
 415         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 416                 struct nouveau_framebuffer *nouveau_fb;
 417
 418                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 419                 if (!nouveau_fb || !nouveau_fb->nvbo)
 420                         continue;
 421
 422                 nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
 423         }
 424
 425         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 426                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 427
 428                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
 429                 if (!ret)
 430                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 431                 if (ret)
 432                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 433         }
 434
 435         nouveau_fbcon_set_suspend(dev, 0);
 436         nouveau_fbcon_zfill_all(dev);
 437
 438         nouveau_display_init(dev);
 439
 440         /* Force CLUT to get re-loaded during modeset */
 441         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 442                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 443
 444                 nv_crtc->lut.depth = 0;
 445         }
 446
 447         drm_helper_resume_force_mode(dev);
 448
 449         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 450                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 451                 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
 452
 453                 nv_crtc->cursor.set_offset(nv_crtc, offset);
 454                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 455                                                  nv_crtc->cursor_saved_y);
 456         }
 457 }
 458
 459 static int
 460 nouveau_page_flip_reserve(struct nouveau_bo *old_bo,
 461                           struct nouveau_bo *new_bo)
 462 {
 463         int ret;
 464
 465         ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
 466         if (ret)
 467                 return ret;
 468
 469         ret = ttm_bo_reserve(&new_bo->bo, false, false, false, 0);
 470         if (ret)
 471                 goto fail;
 472
 473         if (likely(old_bo != new_bo)) {
 474                 ret = ttm_bo_reserve(&old_bo->bo, false, false, false, 0);
 475                 if (ret)
 476                         goto fail_unreserve;
 477         }
 478
 479         return 0;
 480
 481 fail_unreserve:
 482         ttm_bo_unreserve(&new_bo->bo);
 483 fail:
 484         nouveau_bo_unpin(new_bo);
 485         return ret;
 486 }
 487
 488 static void
 489 nouveau_page_flip_unreserve(struct nouveau_bo *old_bo,
 490                             struct nouveau_bo *new_bo,
 491                             struct nouveau_fence *fence)
 492 {
 493         nouveau_bo_fence(new_bo, fence);
 494         ttm_bo_unreserve(&new_bo->bo);
 495
 496         if (likely(old_bo != new_bo)) {
 497                 nouveau_bo_fence(old_bo, fence);
 498                 ttm_bo_unreserve(&old_bo->bo);
 499         }
 500
 501         nouveau_bo_unpin(old_bo);
 502 }
 503
 504 static int
 505 nouveau_page_flip_emit(struct nouveau_channel *chan,
 506                        struct nouveau_bo *old_bo,
 507                        struct nouveau_bo *new_bo,
 508                        struct nouveau_page_flip_state *s,
 509                        struct nouveau_fence **pfence)
 510 {
 511         struct nouveau_fence_chan *fctx = chan->fence;
 512         struct nouveau_drm *drm = chan->drm;
 513         struct drm_device *dev = drm->dev;
 514         unsigned long flags;
 515         int ret;
 516
 517         /* Queue it to the pending list */
 518         spin_lock_irqsave(&dev->event_lock, flags);
 519         list_add_tail(&s->head, &fctx->flip);
 520         spin_unlock_irqrestore(&dev->event_lock, flags);
 521
 522         /* Synchronize with the old framebuffer */
 523         ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
 524         if (ret)
 525                 goto fail;
 526
 527         /* Emit the pageflip */
 528         ret = RING_SPACE(chan, 3);
 529         if (ret)
 530                 goto fail;
 531
 532         if (nv_device(drm->device)->card_type < NV_C0) {
 533                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 534                 OUT_RING  (chan, 0x00000000);
 535                 OUT_RING  (chan, 0x00000000);
 536         } else {
 537                 BEGIN_NVC0(chan, 0, NV10_SUBCHAN_REF_CNT, 1);
 538                 OUT_RING  (chan, 0);
 539                 BEGIN_IMC0(chan, 0, NVSW_SUBCHAN_PAGE_FLIP, 0x0000);
 540         }
 541         FIRE_RING (chan);
 542
 543         ret = nouveau_fence_new(chan, false, pfence);
 544         if (ret)
 545                 goto fail;
 546
 547         return 0;
 548 fail:
 549         spin_lock_irqsave(&dev->event_lock, flags);
 550         list_del(&s->head);
 551         spin_unlock_irqrestore(&dev->event_lock, flags);
 552         return ret;
 553 }
 554
 555 int
 556 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 557                        struct drm_pending_vblank_event *event)
 558 {
 559         struct drm_device *dev = crtc->dev;
 560         struct nouveau_drm *drm = nouveau_drm(dev);
 561         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->fb)->nvbo;
 562         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 563         struct nouveau_page_flip_state *s;
 564         struct nouveau_channel *chan = NULL;
 565         struct nouveau_fence *fence;
 566         int ret;
 567
 568         if (!drm->channel)
 569                 return -ENODEV;
 570
 571         s = kzalloc(sizeof(*s), GFP_KERNEL);
 572         if (!s)
 573                 return -ENOMEM;
 574
 575         /* Don't let the buffers go away while we flip */
 576         ret = nouveau_page_flip_reserve(old_bo, new_bo);
 577         if (ret)
 578                 goto fail_free;
 579
 580         /* Initialize a page flip struct */
 581         *s = (struct nouveau_page_flip_state)
 582                 { { }, event, nouveau_crtc(crtc)->index,
 583                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 584                   new_bo->bo.offset };
 585
 586         /* Choose the channel the flip will be handled in */
 587         fence = new_bo->bo.sync_obj;
 588         if (fence)
 589                 chan = fence->channel;
 590         if (!chan)
 591                 chan = drm->channel;
 592         mutex_lock(&chan->cli->mutex);
 593
 594         /* Emit a page flip */
 595         if (nv_device(drm->device)->card_type >= NV_50) {
 596                 ret = nv50_display_flip_next(crtc, fb, chan, 0);
 597                 if (ret) {
 598                         mutex_unlock(&chan->cli->mutex);
 599                         goto fail_unreserve;
 600                 }
 601         }
 602
 603         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 604         mutex_unlock(&chan->cli->mutex);
 605         if (ret)
 606                 goto fail_unreserve;
 607
 608         /* Update the crtc struct and cleanup */
 609         crtc->fb = fb;
 610
 611         nouveau_page_flip_unreserve(old_bo, new_bo, fence);
 612         nouveau_fence_unref(&fence);
 613         return 0;
 614
 615 fail_unreserve:
 616         nouveau_page_flip_unreserve(old_bo, new_bo, NULL);
 617 fail_free:
 618         kfree(s);
 619         return ret;
 620 }
 621
 622 int
 623 nouveau_finish_page_flip(struct nouveau_channel *chan,
 624                          struct nouveau_page_flip_state *ps)
 625 {
 626         struct nouveau_fence_chan *fctx = chan->fence;
 627         struct nouveau_drm *drm = chan->drm;
 628         struct drm_device *dev = drm->dev;
 629         struct nouveau_page_flip_state *s;
 630         unsigned long flags;
 631
 632         spin_lock_irqsave(&dev->event_lock, flags);
 633
 634         if (list_empty(&fctx->flip)) {
 635                 NV_ERROR(drm, "unexpected pageflip\n");
 636                 spin_unlock_irqrestore(&dev->event_lock, flags);
 637                 return -EINVAL;
 638         }
 639
 640         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 641         if (s->event)
 642                 drm_send_vblank_event(dev, -1, s->event);
 643
 644         list_del(&s->head);
 645         if (ps)
 646                 *ps = *s;
 647         kfree(s);
 648
 649         spin_unlock_irqrestore(&dev->event_lock, flags);
 650         return 0;
 651 }
 652
 653 int
 654 nouveau_flip_complete(void *data)
 655 {
 656         struct nouveau_channel *chan = data;
 657         struct nouveau_drm *drm = chan->drm;
 658         struct nouveau_page_flip_state state;
 659
 660         if (!nouveau_finish_page_flip(chan, &state)) {
 661                 if (nv_device(drm->device)->card_type < NV_50) {
 662                         nv_set_crtc_base(drm->dev, state.crtc, state.offset +
 663                                          state.y * state.pitch +
 664                                          state.x * state.bpp / 8);
 665                 }
 666         }
 667
 668         return 0;
 669 }
 670
 671 int
 672 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 673                             struct drm_mode_create_dumb *args)
 674 {
 675         struct nouveau_bo *bo;
 676         int ret;
 677
 678         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 679         args->size = args->pitch * args->height;
 680         args->size = roundup(args->size, PAGE_SIZE);
 681
 682         ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 683         if (ret)
 684                 return ret;
 685
 686         ret = drm_gem_handle_create(file_priv, bo->gem, &args->handle);
 687         drm_gem_object_unreference_unlocked(bo->gem);
 688         return ret;
 689 }
 690
 691 int
 692 nouveau_display_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
 693                              uint32_t handle)
 694 {
 695         return drm_gem_handle_delete(file_priv, handle);
 696 }
 697
 698 int
 699 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 700                                 struct drm_device *dev,
 701                                 uint32_t handle, uint64_t *poffset)
 702 {
 703         struct drm_gem_object *gem;
 704
 705         gem = drm_gem_object_lookup(dev, file_priv, handle);
 706         if (gem) {
 707                 struct nouveau_bo *bo = gem->driver_private;
 708                 *poffset = bo->bo.addr_space_offset;
 709                 drm_gem_object_unreference_unlocked(gem);
 710                 return 0;
 711         }
 712
 713         return -ENOENT;
 714 }