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 "nouveau_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 static void
  45 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
  46 {
  47         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  48
  49         if (fb->nvbo)
  50                 drm_gem_object_unreference_unlocked(fb->nvbo->gem);
  51
  52         drm_framebuffer_cleanup(drm_fb);
  53         kfree(fb);
  54 }
  55
  56 static int
  57 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
  58                                        struct drm_file *file_priv,
  59                                        unsigned int *handle)
  60 {
  61         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  62
  63         return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle);
  64 }
  65
  66 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
  67         .destroy = nouveau_user_framebuffer_destroy,
  68         .create_handle = nouveau_user_framebuffer_create_handle,
  69 };
  70
  71 int
  72 nouveau_framebuffer_init(struct drm_device *dev,
  73                          struct nouveau_framebuffer *nv_fb,
  74                          struct drm_mode_fb_cmd2 *mode_cmd,
  75                          struct nouveau_bo *nvbo)
  76 {
  77         struct nouveau_drm *drm = nouveau_drm(dev);
  78         struct drm_framebuffer *fb = &nv_fb->base;
  79         int ret;
  80
  81         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
  82         if (ret) {
  83                 return ret;
  84         }
  85
  86         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
  87         nv_fb->nvbo = nvbo;
  88
  89         if (nv_device(drm->device)->card_type >= NV_50) {
  90                 u32 tile_flags = nouveau_bo_tile_layout(nvbo);
  91                 if (tile_flags == 0x7a00 ||
  92                     tile_flags == 0xfe00)
  93                         nv_fb->r_dma = NvEvoFB32;
  94                 else
  95                 if (tile_flags == 0x7000)
  96                         nv_fb->r_dma = NvEvoFB16;
  97                 else
  98                         nv_fb->r_dma = NvEvoVRAM_LP;
  99
 100                 switch (fb->depth) {
 101                 case  8: nv_fb->r_format = 0x1e00; break;
 102                 case 15: nv_fb->r_format = 0xe900; break;
 103                 case 16: nv_fb->r_format = 0xe800; break;
 104                 case 24:
 105                 case 32: nv_fb->r_format = 0xcf00; break;
 106                 case 30: nv_fb->r_format = 0xd100; break;
 107                 default:
 108                          NV_ERROR(drm, "unknown depth %d\n", fb->depth);
 109                          return -EINVAL;
 110                 }
 111
 112                 if (nv_device(drm->device)->chipset == 0x50)
 113                         nv_fb->r_format |= (tile_flags << 8);
 114
 115                 if (!tile_flags) {
 116                         if (nv_device(drm->device)->card_type < NV_D0)
 117                                 nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
 118                         else
 119                                 nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
 120                 } else {
 121                         u32 mode = nvbo->tile_mode;
 122                         if (nv_device(drm->device)->card_type >= NV_C0)
 123                                 mode >>= 4;
 124                         nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
 125                 }
 126         }
 127
 128         return 0;
 129 }
 130
 131 static struct drm_framebuffer *
 132 nouveau_user_framebuffer_create(struct drm_device *dev,
 133                                 struct drm_file *file_priv,
 134                                 struct drm_mode_fb_cmd2 *mode_cmd)
 135 {
 136         struct nouveau_framebuffer *nouveau_fb;
 137         struct drm_gem_object *gem;
 138         int ret;
 139
 140         gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 141         if (!gem)
 142                 return ERR_PTR(-ENOENT);
 143
 144         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 145         if (!nouveau_fb)
 146                 return ERR_PTR(-ENOMEM);
 147
 148         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 149         if (ret) {
 150                 drm_gem_object_unreference(gem);
 151                 return ERR_PTR(ret);
 152         }
 153
 154         return &nouveau_fb->base;
 155 }
 156
 157 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 158         .fb_create = nouveau_user_framebuffer_create,
 159         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 160 };
 161
 162
 163 struct nouveau_drm_prop_enum_list {
 164         u8 gen_mask;
 165         int type;
 166         char *name;
 167 };
 168
 169 static struct nouveau_drm_prop_enum_list underscan[] = {
 170         { 6, UNDERSCAN_AUTO, "auto" },
 171         { 6, UNDERSCAN_OFF, "off" },
 172         { 6, UNDERSCAN_ON, "on" },
 173         {}
 174 };
 175
 176 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 177         { 7, DITHERING_MODE_AUTO, "auto" },
 178         { 7, DITHERING_MODE_OFF, "off" },
 179         { 1, DITHERING_MODE_ON, "on" },
 180         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 181         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 182         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 183         {}
 184 };
 185
 186 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 187         { 6, DITHERING_DEPTH_AUTO, "auto" },
 188         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 189         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 190         {}
 191 };
 192
 193 #define PROP_ENUM(p,gen,n,list) do {                                           \
 194         struct nouveau_drm_prop_enum_list *l = (list);                         \
 195         int c = 0;                                                             \
 196         while (l->gen_mask) {                                                  \
 197                 if (l->gen_mask & (1 << (gen)))                                \
 198                         c++;                                                   \
 199                 l++;                                                           \
 200         }                                                                      \
 201         if (c) {                                                               \
 202                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 203                 l = (list);                                                    \
 204                 c = 0;                                                         \
 205                 while (p && l->gen_mask) {                                     \
 206                         if (l->gen_mask & (1 << (gen))) {                      \
 207                                 drm_property_add_enum(p, c, l->type, l->name); \
 208                                 c++;                                           \
 209                         }                                                      \
 210                         l++;                                                   \
 211                 }                                                              \
 212         }                                                                      \
 213 } while(0)
 214
 215 int
 216 nouveau_display_init(struct drm_device *dev)
 217 {
 218         struct nouveau_drm *drm = nouveau_drm(dev);
 219         struct nouveau_display *disp = nouveau_display(dev);
 220         struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
 221         struct drm_connector *connector;
 222         int ret;
 223
 224         ret = disp->init(dev);
 225         if (ret)
 226                 return ret;
 227
 228         /* power on internal panel if it's not already.  the init tables of
 229          * some vbios default this to off for some reason, causing the
 230          * panel to not work after resume
 231          */
 232         if (gpio && gpio->get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff) == 0) {
 233                 gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
 234                 msleep(300);
 235         }
 236
 237         /* enable polling for external displays */
 238         drm_kms_helper_poll_enable(dev);
 239
 240         /* enable hotplug interrupts */
 241         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 242                 struct nouveau_connector *conn = nouveau_connector(connector);
 243                 if (gpio)
 244                         gpio->irq(gpio, 0, conn->hpd, 0xff, true);
 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)
 262                         gpio->irq(gpio, 0, conn->hpd, 0xff, false);
 263         }
 264
 265         drm_kms_helper_poll_disable(dev);
 266         disp->fini(dev);
 267 }
 268
 269 static void
 270 nouveau_display_vblank_notify(void *data, int crtc)
 271 {
 272         drm_handle_vblank(data, crtc);
 273 }
 274
 275 static void
 276 nouveau_display_vblank_get(void *data, int crtc)
 277 {
 278         drm_vblank_get(data, crtc);
 279 }
 280
 281 static void
 282 nouveau_display_vblank_put(void *data, int crtc)
 283 {
 284         drm_vblank_put(data, crtc);
 285 }
 286
 287 int
 288 nouveau_display_create(struct drm_device *dev)
 289 {
 290         struct nouveau_drm *drm = nouveau_drm(dev);
 291         struct nouveau_disp *pdisp = nouveau_disp(drm->device);
 292         struct nouveau_display *disp;
 293         u32 pclass = dev->pdev->class >> 8;
 294         int ret, gen;
 295
 296         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 297         if (!disp)
 298                 return -ENOMEM;
 299
 300         pdisp->vblank.data = dev;
 301         pdisp->vblank.notify = nouveau_display_vblank_notify;
 302         pdisp->vblank.get = nouveau_display_vblank_get;
 303         pdisp->vblank.put = nouveau_display_vblank_put;
 304
 305         drm_mode_config_init(dev);
 306         drm_mode_create_scaling_mode_property(dev);
 307         drm_mode_create_dvi_i_properties(dev);
 308
 309         if (nv_device(drm->device)->card_type < NV_50)
 310                 gen = 0;
 311         else
 312         if (nv_device(drm->device)->card_type < NV_D0)
 313                 gen = 1;
 314         else
 315                 gen = 2;
 316
 317         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 318         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 319         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 320
 321         disp->underscan_hborder_property =
 322                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 323
 324         disp->underscan_vborder_property =
 325                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 326
 327         if (gen >= 1) {
 328                 disp->vibrant_hue_property =
 329                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
 330                                             "vibrant hue", 2);
 331                 disp->vibrant_hue_property->values[0] = 0;
 332                 disp->vibrant_hue_property->values[1] = 180; /* -90..+90 */
 333
 334                 disp->color_vibrance_property =
 335                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
 336                                             "color vibrance", 2);
 337                 disp->color_vibrance_property->values[0] = 0;
 338                 disp->color_vibrance_property->values[1] = 200; /* -100..+100 */
 339         }
 340
 341         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 342         dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
 343
 344         dev->mode_config.min_width = 0;
 345         dev->mode_config.min_height = 0;
 346         if (nv_device(drm->device)->card_type < NV_10) {
 347                 dev->mode_config.max_width = 2048;
 348                 dev->mode_config.max_height = 2048;
 349         } else
 350         if (nv_device(drm->device)->card_type < NV_50) {
 351                 dev->mode_config.max_width = 4096;
 352                 dev->mode_config.max_height = 4096;
 353         } else {
 354                 dev->mode_config.max_width = 8192;
 355                 dev->mode_config.max_height = 8192;
 356         }
 357
 358         dev->mode_config.preferred_depth = 24;
 359         dev->mode_config.prefer_shadow = 1;
 360
 361         drm_kms_helper_poll_init(dev);
 362         drm_kms_helper_poll_disable(dev);
 363
 364         if (nouveau_modeset == 1 ||
 365             (nouveau_modeset < 0 && pclass == PCI_CLASS_DISPLAY_VGA)) {
 366                 if (nv_device(drm->device)->card_type < NV_50)
 367                         ret = nv04_display_create(dev);
 368                 else
 369                         ret = nv50_display_create(dev);
 370                 if (ret)
 371                         goto disp_create_err;
 372
 373                 if (dev->mode_config.num_crtc) {
 374                         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 375                         if (ret)
 376                                 goto vblank_err;
 377                 }
 378
 379                 nouveau_backlight_init(dev);
 380         }
 381
 382         return 0;
 383
 384 vblank_err:
 385         disp->dtor(dev);
 386 disp_create_err:
 387         drm_kms_helper_poll_fini(dev);
 388         drm_mode_config_cleanup(dev);
 389         return ret;
 390 }
 391
 392 void
 393 nouveau_display_destroy(struct drm_device *dev)
 394 {
 395         struct nouveau_display *disp = nouveau_display(dev);
 396
 397         nouveau_backlight_exit(dev);
 398         drm_vblank_cleanup(dev);
 399
 400         drm_kms_helper_poll_fini(dev);
 401         drm_mode_config_cleanup(dev);
 402
 403         if (disp->dtor)
 404                 disp->dtor(dev);
 405
 406         nouveau_drm(dev)->display = NULL;
 407         kfree(disp);
 408 }
 409
 410 int
 411 nouveau_display_suspend(struct drm_device *dev)
 412 {
 413         struct nouveau_drm *drm = nouveau_drm(dev);
 414         struct drm_crtc *crtc;
 415
 416         nouveau_display_fini(dev);
 417
 418         NV_INFO(drm, "unpinning framebuffer(s)...\n");
 419         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 420                 struct nouveau_framebuffer *nouveau_fb;
 421
 422                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 423                 if (!nouveau_fb || !nouveau_fb->nvbo)
 424                         continue;
 425
 426                 nouveau_bo_unpin(nouveau_fb->nvbo);
 427         }
 428
 429         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 430                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 431
 432                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 433                 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 434         }
 435
 436         return 0;
 437 }
 438
 439 void
 440 nouveau_display_resume(struct drm_device *dev)
 441 {
 442         struct nouveau_drm *drm = nouveau_drm(dev);
 443         struct drm_crtc *crtc;
 444         int ret;
 445
 446         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 447                 struct nouveau_framebuffer *nouveau_fb;
 448
 449                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 450                 if (!nouveau_fb || !nouveau_fb->nvbo)
 451                         continue;
 452
 453                 nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
 454         }
 455
 456         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 457                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 458
 459                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
 460                 if (!ret)
 461                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 462                 if (ret)
 463                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 464         }
 465
 466         nouveau_fbcon_set_suspend(dev, 0);
 467         nouveau_fbcon_zfill_all(dev);
 468
 469         nouveau_display_init(dev);
 470
 471         /* Force CLUT to get re-loaded during modeset */
 472         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 473                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 474
 475                 nv_crtc->lut.depth = 0;
 476         }
 477
 478         drm_helper_resume_force_mode(dev);
 479
 480         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 481                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 482                 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
 483
 484                 nv_crtc->cursor.set_offset(nv_crtc, offset);
 485                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 486                                                  nv_crtc->cursor_saved_y);
 487         }
 488 }
 489
 490 int
 491 nouveau_vblank_enable(struct drm_device *dev, int crtc)
 492 {
 493         struct nouveau_device *device = nouveau_dev(dev);
 494
 495         if (device->card_type >= NV_D0)
 496                 nv_mask(device, 0x6100c0 + (crtc * 0x800), 1, 1);
 497         else
 498         if (device->card_type >= NV_50)
 499                 nv_mask(device, NV50_PDISPLAY_INTR_EN_1, 0,
 500                         NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_(crtc));
 501         else
 502                 NVWriteCRTC(dev, crtc, NV_PCRTC_INTR_EN_0,
 503                             NV_PCRTC_INTR_0_VBLANK);
 504
 505         return 0;
 506 }
 507
 508 void
 509 nouveau_vblank_disable(struct drm_device *dev, int crtc)
 510 {
 511         struct nouveau_device *device = nouveau_dev(dev);
 512
 513         if (device->card_type >= NV_D0)
 514                 nv_mask(device, 0x6100c0 + (crtc * 0x800), 1, 0);
 515         else
 516         if (device->card_type >= NV_50)
 517                 nv_mask(device, NV50_PDISPLAY_INTR_EN_1,
 518                         NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_(crtc), 0);
 519         else
 520                 NVWriteCRTC(dev, crtc, NV_PCRTC_INTR_EN_0, 0);
 521 }
 522
 523 static int
 524 nouveau_page_flip_reserve(struct nouveau_bo *old_bo,
 525                           struct nouveau_bo *new_bo)
 526 {
 527         int ret;
 528
 529         ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
 530         if (ret)
 531                 return ret;
 532
 533         ret = ttm_bo_reserve(&new_bo->bo, false, false, false, 0);
 534         if (ret)
 535                 goto fail;
 536
 537         if (likely(old_bo != new_bo)) {
 538                 ret = ttm_bo_reserve(&old_bo->bo, false, false, false, 0);
 539                 if (ret)
 540                         goto fail_unreserve;
 541         }
 542
 543         return 0;
 544
 545 fail_unreserve:
 546         ttm_bo_unreserve(&new_bo->bo);
 547 fail:
 548         nouveau_bo_unpin(new_bo);
 549         return ret;
 550 }
 551
 552 static void
 553 nouveau_page_flip_unreserve(struct nouveau_bo *old_bo,
 554                             struct nouveau_bo *new_bo,
 555                             struct nouveau_fence *fence)
 556 {
 557         nouveau_bo_fence(new_bo, fence);
 558         ttm_bo_unreserve(&new_bo->bo);
 559
 560         if (likely(old_bo != new_bo)) {
 561                 nouveau_bo_fence(old_bo, fence);
 562                 ttm_bo_unreserve(&old_bo->bo);
 563         }
 564
 565         nouveau_bo_unpin(old_bo);
 566 }
 567
 568 static int
 569 nouveau_page_flip_emit(struct nouveau_channel *chan,
 570                        struct nouveau_bo *old_bo,
 571                        struct nouveau_bo *new_bo,
 572                        struct nouveau_page_flip_state *s,
 573                        struct nouveau_fence **pfence)
 574 {
 575         struct nouveau_fence_chan *fctx = chan->fence;
 576         struct nouveau_drm *drm = chan->drm;
 577         struct drm_device *dev = drm->dev;
 578         unsigned long flags;
 579         int ret;
 580
 581         /* Queue it to the pending list */
 582         spin_lock_irqsave(&dev->event_lock, flags);
 583         list_add_tail(&s->head, &fctx->flip);
 584         spin_unlock_irqrestore(&dev->event_lock, flags);
 585
 586         /* Synchronize with the old framebuffer */
 587         ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
 588         if (ret)
 589                 goto fail;
 590
 591         /* Emit the pageflip */
 592         ret = RING_SPACE(chan, 3);
 593         if (ret)
 594                 goto fail;
 595
 596         if (nv_device(drm->device)->card_type < NV_C0) {
 597                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 598                 OUT_RING  (chan, 0x00000000);
 599                 OUT_RING  (chan, 0x00000000);
 600         } else {
 601                 BEGIN_NVC0(chan, 0, NV10_SUBCHAN_REF_CNT, 1);
 602                 OUT_RING  (chan, 0);
 603                 BEGIN_IMC0(chan, 0, NVSW_SUBCHAN_PAGE_FLIP, 0x0000);
 604         }
 605         FIRE_RING (chan);
 606
 607         ret = nouveau_fence_new(chan, pfence);
 608         if (ret)
 609                 goto fail;
 610
 611         return 0;
 612 fail:
 613         spin_lock_irqsave(&dev->event_lock, flags);
 614         list_del(&s->head);
 615         spin_unlock_irqrestore(&dev->event_lock, flags);
 616         return ret;
 617 }
 618
 619 int
 620 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 621                        struct drm_pending_vblank_event *event)
 622 {
 623         struct drm_device *dev = crtc->dev;
 624         struct nouveau_drm *drm = nouveau_drm(dev);
 625         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->fb)->nvbo;
 626         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 627         struct nouveau_page_flip_state *s;
 628         struct nouveau_channel *chan = NULL;
 629         struct nouveau_fence *fence;
 630         int ret;
 631
 632         if (!drm->channel)
 633                 return -ENODEV;
 634
 635         s = kzalloc(sizeof(*s), GFP_KERNEL);
 636         if (!s)
 637                 return -ENOMEM;
 638
 639         /* Don't let the buffers go away while we flip */
 640         ret = nouveau_page_flip_reserve(old_bo, new_bo);
 641         if (ret)
 642                 goto fail_free;
 643
 644         /* Initialize a page flip struct */
 645         *s = (struct nouveau_page_flip_state)
 646                 { { }, event, nouveau_crtc(crtc)->index,
 647                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 648                   new_bo->bo.offset };
 649
 650         /* Choose the channel the flip will be handled in */
 651         fence = new_bo->bo.sync_obj;
 652         if (fence)
 653                 chan = fence->channel;
 654         if (!chan)
 655                 chan = drm->channel;
 656         mutex_lock(&chan->cli->mutex);
 657
 658         /* Emit a page flip */
 659         if (nv_device(drm->device)->card_type >= NV_50) {
 660                 ret = nv50_display_flip_next(crtc, fb, chan, 0);
 661                 if (ret) {
 662                         mutex_unlock(&chan->cli->mutex);
 663                         goto fail_unreserve;
 664                 }
 665         }
 666
 667         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 668         mutex_unlock(&chan->cli->mutex);
 669         if (ret)
 670                 goto fail_unreserve;
 671
 672         /* Update the crtc struct and cleanup */
 673         crtc->fb = fb;
 674
 675         nouveau_page_flip_unreserve(old_bo, new_bo, fence);
 676         nouveau_fence_unref(&fence);
 677         return 0;
 678
 679 fail_unreserve:
 680         nouveau_page_flip_unreserve(old_bo, new_bo, NULL);
 681 fail_free:
 682         kfree(s);
 683         return ret;
 684 }
 685
 686 int
 687 nouveau_finish_page_flip(struct nouveau_channel *chan,
 688                          struct nouveau_page_flip_state *ps)
 689 {
 690         struct nouveau_fence_chan *fctx = chan->fence;
 691         struct nouveau_drm *drm = chan->drm;
 692         struct drm_device *dev = drm->dev;
 693         struct nouveau_page_flip_state *s;
 694         unsigned long flags;
 695
 696         spin_lock_irqsave(&dev->event_lock, flags);
 697
 698         if (list_empty(&fctx->flip)) {
 699                 NV_ERROR(drm, "unexpected pageflip\n");
 700                 spin_unlock_irqrestore(&dev->event_lock, flags);
 701                 return -EINVAL;
 702         }
 703
 704         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 705         if (s->event) {
 706                 struct drm_pending_vblank_event *e = s->event;
 707                 struct timeval now;
 708
 709                 do_gettimeofday(&now);
 710                 e->event.sequence = 0;
 711                 e->event.tv_sec = now.tv_sec;
 712                 e->event.tv_usec = now.tv_usec;
 713                 list_add_tail(&e->base.link, &e->base.file_priv->event_list);
 714                 wake_up_interruptible(&e->base.file_priv->event_wait);
 715         }
 716
 717         list_del(&s->head);
 718         if (ps)
 719                 *ps = *s;
 720         kfree(s);
 721
 722         spin_unlock_irqrestore(&dev->event_lock, flags);
 723         return 0;
 724 }
 725
 726 int
 727 nouveau_flip_complete(void *data)
 728 {
 729         struct nouveau_channel *chan = data;
 730         struct nouveau_drm *drm = chan->drm;
 731         struct nouveau_page_flip_state state;
 732
 733         if (!nouveau_finish_page_flip(chan, &state)) {
 734                 if (nv_device(drm->device)->card_type < NV_50) {
 735                         nv_set_crtc_base(drm->dev, state.crtc, state.offset +
 736                                          state.y * state.pitch +
 737                                          state.x * state.bpp / 8);
 738                 }
 739         }
 740
 741         return 0;
 742 }
 743
 744 int
 745 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 746                             struct drm_mode_create_dumb *args)
 747 {
 748         struct nouveau_bo *bo;
 749         int ret;
 750
 751         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 752         args->size = args->pitch * args->height;
 753         args->size = roundup(args->size, PAGE_SIZE);
 754
 755         ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 756         if (ret)
 757                 return ret;
 758
 759         ret = drm_gem_handle_create(file_priv, bo->gem, &args->handle);
 760         drm_gem_object_unreference_unlocked(bo->gem);
 761         return ret;
 762 }
 763
 764 int
 765 nouveau_display_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
 766                              uint32_t handle)
 767 {
 768         return drm_gem_handle_delete(file_priv, handle);
 769 }
 770
 771 int
 772 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 773                                 struct drm_device *dev,
 774                                 uint32_t handle, uint64_t *poffset)
 775 {
 776         struct drm_gem_object *gem;
 777
 778         gem = drm_gem_object_lookup(dev, file_priv, handle);
 779         if (gem) {
 780                 struct nouveau_bo *bo = gem->driver_private;
 781                 *poffset = bo->bo.addr_space_offset;
 782                 drm_gem_object_unreference_unlocked(gem);
 783                 return 0;
 784         }
 785
 786         return -ENOENT;
 787 }