Pileus Git - ~andy/linux/blob - 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 "drmP.h"
  28 #include "drm_crtc_helper.h"
  29 #include "nouveau_drv.h"
  30 #include "nouveau_fb.h"
  31 #include "nouveau_fbcon.h"
  32 #include "nouveau_hw.h"
  33 #include "nouveau_crtc.h"
  34 #include "nouveau_dma.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
  42 static void
  43 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
  44 {
  45         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  46
  47         if (fb->nvbo)
  48                 drm_gem_object_unreference_unlocked(fb->nvbo->gem);
  49
  50         drm_framebuffer_cleanup(drm_fb);
  51         kfree(fb);
  52 }
  53
  54 static int
  55 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
  56                                        struct drm_file *file_priv,
  57                                        unsigned int *handle)
  58 {
  59         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  60
  61         return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle);
  62 }
  63
  64 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
  65         .destroy = nouveau_user_framebuffer_destroy,
  66         .create_handle = nouveau_user_framebuffer_create_handle,
  67 };
  68
  69 int
  70 nouveau_framebuffer_init(struct drm_device *dev,
  71                          struct nouveau_framebuffer *nv_fb,
  72                          struct drm_mode_fb_cmd2 *mode_cmd,
  73                          struct nouveau_bo *nvbo)
  74 {
  75         struct drm_nouveau_private *dev_priv = dev->dev_private;
  76         struct drm_framebuffer *fb = &nv_fb->base;
  77         int ret;
  78
  79         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
  80         if (ret) {
  81                 return ret;
  82         }
  83
  84         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
  85         nv_fb->nvbo = nvbo;
  86
  87         if (dev_priv->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 = NV50_EVO_CRTC_FB_DEPTH_8; break;
 100                 case 15: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_15; break;
 101                 case 16: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_16; break;
 102                 case 24:
 103                 case 32: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_24; break;
 104                 case 30: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_30; break;
 105                 default:
 106                          NV_ERROR(dev, "unknown depth %d\n", fb->depth);
 107                          return -EINVAL;
 108                 }
 109
 110                 if (dev_priv->chipset == 0x50)
 111                         nv_fb->r_format |= (tile_flags << 8);
 112
 113                 if (!tile_flags) {
 114                         if (dev_priv->card_type < NV_D0)
 115                                 nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
 116                         else
 117                                 nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
 118                 } else {
 119                         u32 mode = nvbo->tile_mode;
 120                         if (dev_priv->card_type >= NV_C0)
 121                                 mode >>= 4;
 122                         nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
 123                 }
 124         }
 125
 126         return 0;
 127 }
 128
 129 static struct drm_framebuffer *
 130 nouveau_user_framebuffer_create(struct drm_device *dev,
 131                                 struct drm_file *file_priv,
 132                                 struct drm_mode_fb_cmd2 *mode_cmd)
 133 {
 134         struct nouveau_framebuffer *nouveau_fb;
 135         struct drm_gem_object *gem;
 136         int ret;
 137
 138         gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 139         if (!gem)
 140                 return ERR_PTR(-ENOENT);
 141
 142         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 143         if (!nouveau_fb)
 144                 return ERR_PTR(-ENOMEM);
 145
 146         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 147         if (ret) {
 148                 drm_gem_object_unreference(gem);
 149                 return ERR_PTR(ret);
 150         }
 151
 152         return &nouveau_fb->base;
 153 }
 154
 155 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 156         .fb_create = nouveau_user_framebuffer_create,
 157         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 158 };
 159
 160
 161 struct nouveau_drm_prop_enum_list {
 162         u8 gen_mask;
 163         int type;
 164         char *name;
 165 };
 166
 167 static struct nouveau_drm_prop_enum_list underscan[] = {
 168         { 6, UNDERSCAN_AUTO, "auto" },
 169         { 6, UNDERSCAN_OFF, "off" },
 170         { 6, UNDERSCAN_ON, "on" },
 171         {}
 172 };
 173
 174 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 175         { 7, DITHERING_MODE_AUTO, "auto" },
 176         { 7, DITHERING_MODE_OFF, "off" },
 177         { 1, DITHERING_MODE_ON, "on" },
 178         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 179         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 180         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 181         {}
 182 };
 183
 184 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 185         { 6, DITHERING_DEPTH_AUTO, "auto" },
 186         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 187         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 188         {}
 189 };
 190
 191 #define PROP_ENUM(p,gen,n,list) do {                                           \
 192         struct nouveau_drm_prop_enum_list *l = (list);                         \
 193         int c = 0;                                                             \
 194         while (l->gen_mask) {                                                  \
 195                 if (l->gen_mask & (1 << (gen)))                                \
 196                         c++;                                                   \
 197                 l++;                                                           \
 198         }                                                                      \
 199         if (c) {                                                               \
 200                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 201                 l = (list);                                                    \
 202                 c = 0;                                                         \
 203                 while (p && l->gen_mask) {                                     \
 204                         if (l->gen_mask & (1 << (gen))) {                      \
 205                                 drm_property_add_enum(p, c, l->type, l->name); \
 206                                 c++;                                           \
 207                         }                                                      \
 208                         l++;                                                   \
 209                 }                                                              \
 210         }                                                                      \
 211 } while(0)
 212
 213 int
 214 nouveau_display_init(struct drm_device *dev)
 215 {
 216         struct drm_nouveau_private *dev_priv = dev->dev_private;
 217         struct nouveau_display_engine *disp = &dev_priv->engine.display;
 218         struct drm_connector *connector;
 219         int ret;
 220
 221         ret = disp->init(dev);
 222         if (ret)
 223                 return ret;
 224
 225         /* power on internal panel if it's not already.  the init tables of
 226          * some vbios default this to off for some reason, causing the
 227          * panel to not work after resume
 228          */
 229         if (nouveau_gpio_func_get(dev, DCB_GPIO_PANEL_POWER) == 0) {
 230                 nouveau_gpio_func_set(dev, DCB_GPIO_PANEL_POWER, true);
 231                 msleep(300);
 232         }
 233
 234         /* enable polling for external displays */
 235         drm_kms_helper_poll_enable(dev);
 236
 237         /* enable hotplug interrupts */
 238         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 239                 struct nouveau_connector *conn = nouveau_connector(connector);
 240                 nouveau_gpio_irq(dev, 0, conn->hpd, 0xff, true);
 241         }
 242
 243         return ret;
 244 }
 245
 246 void
 247 nouveau_display_fini(struct drm_device *dev)
 248 {
 249         struct drm_nouveau_private *dev_priv = dev->dev_private;
 250         struct nouveau_display_engine *disp = &dev_priv->engine.display;
 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                 nouveau_gpio_irq(dev, 0, conn->hpd, 0xff, false);
 257         }
 258
 259         drm_kms_helper_poll_disable(dev);
 260         disp->fini(dev);
 261 }
 262
 263 static void
 264 nouveau_display_vblank_notify(void *data, int crtc)
 265 {
 266         drm_handle_vblank(data, crtc);
 267 }
 268
 269 static void
 270 nouveau_display_vblank_get(void *data, int crtc)
 271 {
 272         drm_vblank_get(data, crtc);
 273 }
 274
 275 static void
 276 nouveau_display_vblank_put(void *data, int crtc)
 277 {
 278         drm_vblank_put(data, crtc);
 279 }
 280
 281 int
 282 nouveau_display_create(struct drm_device *dev)
 283 {
 284         struct drm_nouveau_private *dev_priv = dev->dev_private;
 285         struct nouveau_display_engine *disp = &dev_priv->engine.display;
 286         int ret, gen;
 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 (dev_priv->card_type < NV_50)
 293                 gen = 0;
 294         else
 295         if (dev_priv->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                 disp->vibrant_hue_property =
 312                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
 313                                             "vibrant hue", 2);
 314                 disp->vibrant_hue_property->values[0] = 0;
 315                 disp->vibrant_hue_property->values[1] = 180; /* -90..+90 */
 316
 317                 disp->color_vibrance_property =
 318                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
 319                                             "color vibrance", 2);
 320                 disp->color_vibrance_property->values[0] = 0;
 321                 disp->color_vibrance_property->values[1] = 200; /* -100..+100 */
 322         }
 323
 324         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 325         dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
 326
 327         dev->mode_config.min_width = 0;
 328         dev->mode_config.min_height = 0;
 329         if (dev_priv->card_type < NV_10) {
 330                 dev->mode_config.max_width = 2048;
 331                 dev->mode_config.max_height = 2048;
 332         } else
 333         if (dev_priv->card_type < NV_50) {
 334                 dev->mode_config.max_width = 4096;
 335                 dev->mode_config.max_height = 4096;
 336         } else {
 337                 dev->mode_config.max_width = 8192;
 338                 dev->mode_config.max_height = 8192;
 339         }
 340
 341         dev->mode_config.preferred_depth = 24;
 342         dev->mode_config.prefer_shadow = 1;
 343
 344         drm_kms_helper_poll_init(dev);
 345         drm_kms_helper_poll_disable(dev);
 346
 347         ret = disp->create(dev);
 348         if (ret)
 349                 goto disp_create_err;
 350
 351         if (dev->mode_config.num_crtc) {
 352                 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 353                 if (ret)
 354                         goto vblank_err;
 355         }
 356
 357         return 0;
 358
 359 vblank_err:
 360         disp->destroy(dev);
 361 disp_create_err:
 362         drm_kms_helper_poll_fini(dev);
 363         drm_mode_config_cleanup(dev);
 364         return ret;
 365 }
 366
 367 void
 368 nouveau_display_destroy(struct drm_device *dev)
 369 {
 370         struct drm_nouveau_private *dev_priv = dev->dev_private;
 371         struct nouveau_display_engine *disp = &dev_priv->engine.display;
 372
 373         drm_vblank_cleanup(dev);
 374
 375         disp->destroy(dev);
 376
 377         drm_kms_helper_poll_fini(dev);
 378         drm_mode_config_cleanup(dev);
 379 }
 380
 381 int
 382 nouveau_vblank_enable(struct drm_device *dev, int crtc)
 383 {
 384         struct drm_nouveau_private *dev_priv = dev->dev_private;
 385
 386         if (dev_priv->card_type >= NV_D0)
 387                 nv_mask(dev, 0x6100c0 + (crtc * 0x800), 1, 1);
 388         else
 389
 390         if (dev_priv->card_type >= NV_50)
 391                 nv_mask(dev, NV50_PDISPLAY_INTR_EN_1, 0,
 392                         NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_(crtc));
 393         else
 394                 NVWriteCRTC(dev, crtc, NV_PCRTC_INTR_EN_0,
 395                             NV_PCRTC_INTR_0_VBLANK);
 396
 397         return 0;
 398 }
 399
 400 void
 401 nouveau_vblank_disable(struct drm_device *dev, int crtc)
 402 {
 403         struct drm_nouveau_private *dev_priv = dev->dev_private;
 404
 405         if (dev_priv->card_type >= NV_D0)
 406                 nv_mask(dev, 0x6100c0 + (crtc * 0x800), 1, 0);
 407         else
 408         if (dev_priv->card_type >= NV_50)
 409                 nv_mask(dev, NV50_PDISPLAY_INTR_EN_1,
 410                         NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_(crtc), 0);
 411         else
 412                 NVWriteCRTC(dev, crtc, NV_PCRTC_INTR_EN_0, 0);
 413 }
 414
 415 static int
 416 nouveau_page_flip_reserve(struct nouveau_bo *old_bo,
 417                           struct nouveau_bo *new_bo)
 418 {
 419         int ret;
 420
 421         ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
 422         if (ret)
 423                 return ret;
 424
 425         ret = ttm_bo_reserve(&new_bo->bo, false, false, false, 0);
 426         if (ret)
 427                 goto fail;
 428
 429         ret = ttm_bo_reserve(&old_bo->bo, false, false, false, 0);
 430         if (ret)
 431                 goto fail_unreserve;
 432
 433         return 0;
 434
 435 fail_unreserve:
 436         ttm_bo_unreserve(&new_bo->bo);
 437 fail:
 438         nouveau_bo_unpin(new_bo);
 439         return ret;
 440 }
 441
 442 static void
 443 nouveau_page_flip_unreserve(struct nouveau_bo *old_bo,
 444                             struct nouveau_bo *new_bo,
 445                             struct nouveau_fence *fence)
 446 {
 447         nouveau_bo_fence(new_bo, fence);
 448         ttm_bo_unreserve(&new_bo->bo);
 449
 450         nouveau_bo_fence(old_bo, fence);
 451         ttm_bo_unreserve(&old_bo->bo);
 452
 453         nouveau_bo_unpin(old_bo);
 454 }
 455
 456 static int
 457 nouveau_page_flip_emit(struct nouveau_channel *chan,
 458                        struct nouveau_bo *old_bo,
 459                        struct nouveau_bo *new_bo,
 460                        struct nouveau_page_flip_state *s,
 461                        struct nouveau_fence **pfence)
 462 {
 463         struct nouveau_fence_chan *fctx = chan->fence;
 464         struct drm_device *dev = nouveau_drv(chan->drm);
 465         struct drm_nouveau_private *dev_priv = dev->dev_private;
 466         unsigned long flags;
 467         int ret;
 468
 469         /* Queue it to the pending list */
 470         spin_lock_irqsave(&dev->event_lock, flags);
 471         list_add_tail(&s->head, &fctx->flip);
 472         spin_unlock_irqrestore(&dev->event_lock, flags);
 473
 474         /* Synchronize with the old framebuffer */
 475         ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
 476         if (ret)
 477                 goto fail;
 478
 479         /* Emit the pageflip */
 480         ret = RING_SPACE(chan, 3);
 481         if (ret)
 482                 goto fail;
 483
 484         if (dev_priv->card_type < NV_C0) {
 485                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 486                 OUT_RING  (chan, 0x00000000);
 487                 OUT_RING  (chan, 0x00000000);
 488         } else {
 489                 BEGIN_NVC0(chan, 0, NV10_SUBCHAN_REF_CNT, 1);
 490                 OUT_RING  (chan, 0);
 491                 BEGIN_IMC0(chan, 0, NVSW_SUBCHAN_PAGE_FLIP, 0x0000);
 492         }
 493         FIRE_RING (chan);
 494
 495         ret = nouveau_fence_new(chan, pfence);
 496         if (ret)
 497                 goto fail;
 498
 499         return 0;
 500 fail:
 501         spin_lock_irqsave(&dev->event_lock, flags);
 502         list_del(&s->head);
 503         spin_unlock_irqrestore(&dev->event_lock, flags);
 504         return ret;
 505 }
 506
 507 int
 508 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 509                        struct drm_pending_vblank_event *event)
 510 {
 511         struct drm_device *dev = crtc->dev;
 512         struct drm_nouveau_private *dev_priv = dev->dev_private;
 513         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->fb)->nvbo;
 514         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 515         struct nouveau_page_flip_state *s;
 516         struct nouveau_channel *chan = NULL;
 517         struct nouveau_fence *fence;
 518         int ret;
 519
 520         if (!nvdrm_channel(dev))
 521                 return -ENODEV;
 522
 523         s = kzalloc(sizeof(*s), GFP_KERNEL);
 524         if (!s)
 525                 return -ENOMEM;
 526
 527         /* Don't let the buffers go away while we flip */
 528         ret = nouveau_page_flip_reserve(old_bo, new_bo);
 529         if (ret)
 530                 goto fail_free;
 531
 532         /* Initialize a page flip struct */
 533         *s = (struct nouveau_page_flip_state)
 534                 { { }, event, nouveau_crtc(crtc)->index,
 535                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 536                   new_bo->bo.offset };
 537
 538         /* Choose the channel the flip will be handled in */
 539         fence = new_bo->bo.sync_obj;
 540         if (fence)
 541                 chan = fence->channel;
 542         if (!chan)
 543                 chan = nvdrm_channel(dev);
 544         mutex_lock(nvchan_mutex(chan));
 545
 546         /* Emit a page flip */
 547         if (dev_priv->card_type >= NV_50) {
 548                 if (dev_priv->card_type >= NV_D0)
 549                         ret = nvd0_display_flip_next(crtc, fb, chan, 0);
 550                 else
 551                         ret = nv50_display_flip_next(crtc, fb, chan);
 552                 if (ret) {
 553                         mutex_unlock(nvchan_mutex(chan));
 554                         goto fail_unreserve;
 555                 }
 556         }
 557
 558         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 559         mutex_unlock(nvchan_mutex(chan));
 560         if (ret)
 561                 goto fail_unreserve;
 562
 563         /* Update the crtc struct and cleanup */
 564         crtc->fb = fb;
 565
 566         nouveau_page_flip_unreserve(old_bo, new_bo, fence);
 567         nouveau_fence_unref(&fence);
 568         return 0;
 569
 570 fail_unreserve:
 571         nouveau_page_flip_unreserve(old_bo, new_bo, NULL);
 572 fail_free:
 573         kfree(s);
 574         return ret;
 575 }
 576
 577 int
 578 nouveau_finish_page_flip(struct nouveau_channel *chan,
 579                          struct nouveau_page_flip_state *ps)
 580 {
 581         struct nouveau_fence_chan *fctx = chan->fence;
 582         struct drm_device *dev = nouveau_drv(chan->drm);
 583         struct nouveau_page_flip_state *s;
 584         unsigned long flags;
 585
 586         spin_lock_irqsave(&dev->event_lock, flags);
 587
 588         if (list_empty(&fctx->flip)) {
 589                 NV_ERROR(dev, "unexpected pageflip\n");
 590                 spin_unlock_irqrestore(&dev->event_lock, flags);
 591                 return -EINVAL;
 592         }
 593
 594         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 595         if (s->event) {
 596                 struct drm_pending_vblank_event *e = s->event;
 597                 struct timeval now;
 598
 599                 do_gettimeofday(&now);
 600                 e->event.sequence = 0;
 601                 e->event.tv_sec = now.tv_sec;
 602                 e->event.tv_usec = now.tv_usec;
 603                 list_add_tail(&e->base.link, &e->base.file_priv->event_list);
 604                 wake_up_interruptible(&e->base.file_priv->event_wait);
 605         }
 606
 607         list_del(&s->head);
 608         if (ps)
 609                 *ps = *s;
 610         kfree(s);
 611
 612         spin_unlock_irqrestore(&dev->event_lock, flags);
 613         return 0;
 614 }
 615
 616 int
 617 nouveau_flip_complete(void *data)
 618 {
 619         struct nouveau_channel *chan = data;
 620         struct drm_device *dev = nouveau_drv(chan->drm);
 621         struct drm_nouveau_private *dev_priv = dev->dev_private;
 622         struct nouveau_page_flip_state state;
 623
 624         if (!nouveau_finish_page_flip(chan, &state)) {
 625                 if (dev_priv->card_type < NV_50) {
 626                         nv_set_crtc_base(dev, state.crtc, state.offset +
 627                                          state.y * state.pitch +
 628                                          state.x * state.bpp / 8);
 629                 }
 630         }
 631
 632         return 0;
 633 }
 634
 635 int
 636 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 637                             struct drm_mode_create_dumb *args)
 638 {
 639         struct nouveau_bo *bo;
 640         int ret;
 641
 642         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 643         args->size = args->pitch * args->height;
 644         args->size = roundup(args->size, PAGE_SIZE);
 645
 646         ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 647         if (ret)
 648                 return ret;
 649
 650         ret = drm_gem_handle_create(file_priv, bo->gem, &args->handle);
 651         drm_gem_object_unreference_unlocked(bo->gem);
 652         return ret;
 653 }
 654
 655 int
 656 nouveau_display_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
 657                              uint32_t handle)
 658 {
 659         return drm_gem_handle_delete(file_priv, handle);
 660 }
 661
 662 int
 663 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 664                                 struct drm_device *dev,
 665                                 uint32_t handle, uint64_t *poffset)
 666 {
 667         struct drm_gem_object *gem;
 668
 669         gem = drm_gem_object_lookup(dev, file_priv, handle);
 670         if (gem) {
 671                 struct nouveau_bo *bo = gem->driver_private;
 672                 *poffset = bo->bo.addr_space_offset;
 673                 drm_gem_object_unreference_unlocked(gem);
 674                 return 0;
 675         }
 676
 677         return -ENOENT;
 678 }