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