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 <engine/disp.h>
  41
  42 #include <core/class.h>
  43
  44 static int
  45 nouveau_display_vblank_handler(void *data, u32 type, int head)
  46 {
  47         struct nouveau_drm *drm = data;
  48         drm_handle_vblank(drm->dev, head);
  49         return NVKM_EVENT_KEEP;
  50 }
  51
  52 int
  53 nouveau_display_vblank_enable(struct drm_device *dev, int head)
  54 {
  55         struct nouveau_display *disp = nouveau_display(dev);
  56         if (disp) {
  57                 nouveau_event_get(disp->vblank[head]);
  58                 return 0;
  59         }
  60         return -EIO;
  61 }
  62
  63 void
  64 nouveau_display_vblank_disable(struct drm_device *dev, int head)
  65 {
  66         struct nouveau_display *disp = nouveau_display(dev);
  67         if (disp)
  68                 nouveau_event_put(disp->vblank[head]);
  69 }
  70
  71 static inline int
  72 calc(int blanks, int blanke, int total, int line)
  73 {
  74         if (blanke >= blanks) {
  75                 if (line >= blanks)
  76                         line -= total;
  77         } else {
  78                 if (line >= blanks)
  79                         line -= total;
  80                 line -= blanke + 1;
  81         }
  82         return line;
  83 }
  84
  85 int
  86 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
  87                                 ktime_t *stime, ktime_t *etime)
  88 {
  89         const u32 mthd = NV04_DISP_SCANOUTPOS + nouveau_crtc(crtc)->index;
  90         struct nouveau_display *disp = nouveau_display(crtc->dev);
  91         struct nv04_display_scanoutpos args;
  92         int ret, retry = 1;
  93
  94         do {
  95                 ret = nv_exec(disp->core, mthd, &args, sizeof(args));
  96                 if (ret != 0)
  97                         return 0;
  98
  99                 if (args.vline) {
 100                         ret |= DRM_SCANOUTPOS_ACCURATE;
 101                         ret |= DRM_SCANOUTPOS_VALID;
 102                         break;
 103                 }
 104
 105                 if (retry) ndelay(crtc->linedur_ns);
 106         } while (retry--);
 107
 108         *hpos = args.hline;
 109         *vpos = calc(args.vblanks, args.vblanke, args.vtotal, args.vline);
 110         if (stime) *stime = ns_to_ktime(args.time[0]);
 111         if (etime) *etime = ns_to_ktime(args.time[1]);
 112
 113         if (*vpos < 0)
 114                 ret |= DRM_SCANOUTPOS_INVBL;
 115         return ret;
 116 }
 117
 118 int
 119 nouveau_display_scanoutpos(struct drm_device *dev, int head, unsigned int flags,
 120                            int *vpos, int *hpos, ktime_t *stime, ktime_t *etime)
 121 {
 122         struct drm_crtc *crtc;
 123
 124         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 125                 if (nouveau_crtc(crtc)->index == head) {
 126                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 127                                                                stime, etime);
 128                 }
 129         }
 130
 131         return 0;
 132 }
 133
 134 int
 135 nouveau_display_vblstamp(struct drm_device *dev, int head, int *max_error,
 136                          struct timeval *time, unsigned flags)
 137 {
 138         struct drm_crtc *crtc;
 139
 140         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 141                 if (nouveau_crtc(crtc)->index == head) {
 142                         return drm_calc_vbltimestamp_from_scanoutpos(dev,
 143                                         head, max_error, time, flags, crtc,
 144                                         &crtc->hwmode);
 145                 }
 146         }
 147
 148         return -EINVAL;
 149 }
 150
 151 static void
 152 nouveau_display_vblank_fini(struct drm_device *dev)
 153 {
 154         struct nouveau_display *disp = nouveau_display(dev);
 155         int i;
 156
 157         drm_vblank_cleanup(dev);
 158
 159         if (disp->vblank) {
 160                 for (i = 0; i < dev->mode_config.num_crtc; i++)
 161                         nouveau_event_ref(NULL, &disp->vblank[i]);
 162                 kfree(disp->vblank);
 163                 disp->vblank = NULL;
 164         }
 165 }
 166
 167 static int
 168 nouveau_display_vblank_init(struct drm_device *dev)
 169 {
 170         struct nouveau_display *disp = nouveau_display(dev);
 171         struct nouveau_drm *drm = nouveau_drm(dev);
 172         struct nouveau_disp *pdisp = nouveau_disp(drm->device);
 173         int ret, i;
 174
 175         disp->vblank = kzalloc(dev->mode_config.num_crtc *
 176                                sizeof(*disp->vblank), GFP_KERNEL);
 177         if (!disp->vblank)
 178                 return -ENOMEM;
 179
 180         for (i = 0; i < dev->mode_config.num_crtc; i++) {
 181                 ret = nouveau_event_new(pdisp->vblank, 1, i,
 182                                         nouveau_display_vblank_handler,
 183                                         drm, &disp->vblank[i]);
 184                 if (ret) {
 185                         nouveau_display_vblank_fini(dev);
 186                         return ret;
 187                 }
 188         }
 189
 190         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 191         if (ret) {
 192                 nouveau_display_vblank_fini(dev);
 193                 return ret;
 194         }
 195
 196         return 0;
 197 }
 198
 199 static void
 200 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 201 {
 202         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 203
 204         if (fb->nvbo)
 205                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 206
 207         drm_framebuffer_cleanup(drm_fb);
 208         kfree(fb);
 209 }
 210
 211 static int
 212 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 213                                        struct drm_file *file_priv,
 214                                        unsigned int *handle)
 215 {
 216         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 217
 218         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 219 }
 220
 221 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 222         .destroy = nouveau_user_framebuffer_destroy,
 223         .create_handle = nouveau_user_framebuffer_create_handle,
 224 };
 225
 226 int
 227 nouveau_framebuffer_init(struct drm_device *dev,
 228                          struct nouveau_framebuffer *nv_fb,
 229                          struct drm_mode_fb_cmd2 *mode_cmd,
 230                          struct nouveau_bo *nvbo)
 231 {
 232         struct nouveau_drm *drm = nouveau_drm(dev);
 233         struct drm_framebuffer *fb = &nv_fb->base;
 234         int ret;
 235
 236         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
 237         nv_fb->nvbo = nvbo;
 238
 239         if (nv_device(drm->device)->card_type >= NV_50) {
 240                 u32 tile_flags = nouveau_bo_tile_layout(nvbo);
 241                 if (tile_flags == 0x7a00 ||
 242                     tile_flags == 0xfe00)
 243                         nv_fb->r_dma = NvEvoFB32;
 244                 else
 245                 if (tile_flags == 0x7000)
 246                         nv_fb->r_dma = NvEvoFB16;
 247                 else
 248                         nv_fb->r_dma = NvEvoVRAM_LP;
 249
 250                 switch (fb->depth) {
 251                 case  8: nv_fb->r_format = 0x1e00; break;
 252                 case 15: nv_fb->r_format = 0xe900; break;
 253                 case 16: nv_fb->r_format = 0xe800; break;
 254                 case 24:
 255                 case 32: nv_fb->r_format = 0xcf00; break;
 256                 case 30: nv_fb->r_format = 0xd100; break;
 257                 default:
 258                          NV_ERROR(drm, "unknown depth %d\n", fb->depth);
 259                          return -EINVAL;
 260                 }
 261
 262                 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) {
 263                         NV_ERROR(drm, "framebuffer requires contiguous bo\n");
 264                         return -EINVAL;
 265                 }
 266
 267                 if (nv_device(drm->device)->chipset == 0x50)
 268                         nv_fb->r_format |= (tile_flags << 8);
 269
 270                 if (!tile_flags) {
 271                         if (nv_device(drm->device)->card_type < NV_D0)
 272                                 nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
 273                         else
 274                                 nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
 275                 } else {
 276                         u32 mode = nvbo->tile_mode;
 277                         if (nv_device(drm->device)->card_type >= NV_C0)
 278                                 mode >>= 4;
 279                         nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
 280                 }
 281         }
 282
 283         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 284         if (ret) {
 285                 return ret;
 286         }
 287
 288         return 0;
 289 }
 290
 291 static struct drm_framebuffer *
 292 nouveau_user_framebuffer_create(struct drm_device *dev,
 293                                 struct drm_file *file_priv,
 294                                 struct drm_mode_fb_cmd2 *mode_cmd)
 295 {
 296         struct nouveau_framebuffer *nouveau_fb;
 297         struct drm_gem_object *gem;
 298         int ret = -ENOMEM;
 299
 300         gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 301         if (!gem)
 302                 return ERR_PTR(-ENOENT);
 303
 304         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 305         if (!nouveau_fb)
 306                 goto err_unref;
 307
 308         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 309         if (ret)
 310                 goto err;
 311
 312         return &nouveau_fb->base;
 313
 314 err:
 315         kfree(nouveau_fb);
 316 err_unref:
 317         drm_gem_object_unreference(gem);
 318         return ERR_PTR(ret);
 319 }
 320
 321 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 322         .fb_create = nouveau_user_framebuffer_create,
 323         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 324 };
 325
 326
 327 struct nouveau_drm_prop_enum_list {
 328         u8 gen_mask;
 329         int type;
 330         char *name;
 331 };
 332
 333 static struct nouveau_drm_prop_enum_list underscan[] = {
 334         { 6, UNDERSCAN_AUTO, "auto" },
 335         { 6, UNDERSCAN_OFF, "off" },
 336         { 6, UNDERSCAN_ON, "on" },
 337         {}
 338 };
 339
 340 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 341         { 7, DITHERING_MODE_AUTO, "auto" },
 342         { 7, DITHERING_MODE_OFF, "off" },
 343         { 1, DITHERING_MODE_ON, "on" },
 344         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 345         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 346         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 347         {}
 348 };
 349
 350 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 351         { 6, DITHERING_DEPTH_AUTO, "auto" },
 352         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 353         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 354         {}
 355 };
 356
 357 #define PROP_ENUM(p,gen,n,list) do {                                           \
 358         struct nouveau_drm_prop_enum_list *l = (list);                         \
 359         int c = 0;                                                             \
 360         while (l->gen_mask) {                                                  \
 361                 if (l->gen_mask & (1 << (gen)))                                \
 362                         c++;                                                   \
 363                 l++;                                                           \
 364         }                                                                      \
 365         if (c) {                                                               \
 366                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 367                 l = (list);                                                    \
 368                 c = 0;                                                         \
 369                 while (p && l->gen_mask) {                                     \
 370                         if (l->gen_mask & (1 << (gen))) {                      \
 371                                 drm_property_add_enum(p, c, l->type, l->name); \
 372                                 c++;                                           \
 373                         }                                                      \
 374                         l++;                                                   \
 375                 }                                                              \
 376         }                                                                      \
 377 } while(0)
 378
 379 int
 380 nouveau_display_init(struct drm_device *dev)
 381 {
 382         struct nouveau_display *disp = nouveau_display(dev);
 383         struct drm_connector *connector;
 384         int ret;
 385
 386         ret = disp->init(dev);
 387         if (ret)
 388                 return ret;
 389
 390         /* enable polling for external displays */
 391         drm_kms_helper_poll_enable(dev);
 392
 393         /* enable hotplug interrupts */
 394         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 395                 struct nouveau_connector *conn = nouveau_connector(connector);
 396                 if (conn->hpd) nouveau_event_get(conn->hpd);
 397         }
 398
 399         return ret;
 400 }
 401
 402 void
 403 nouveau_display_fini(struct drm_device *dev)
 404 {
 405         struct nouveau_display *disp = nouveau_display(dev);
 406         struct drm_connector *connector;
 407
 408         /* disable hotplug interrupts */
 409         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 410                 struct nouveau_connector *conn = nouveau_connector(connector);
 411                 if (conn->hpd) nouveau_event_put(conn->hpd);
 412         }
 413
 414         drm_kms_helper_poll_disable(dev);
 415         disp->fini(dev);
 416 }
 417
 418 int
 419 nouveau_display_create(struct drm_device *dev)
 420 {
 421         struct nouveau_drm *drm = nouveau_drm(dev);
 422         struct nouveau_device *device = nouveau_dev(dev);
 423         struct nouveau_display *disp;
 424         int ret, gen;
 425
 426         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 427         if (!disp)
 428                 return -ENOMEM;
 429
 430         drm_mode_config_init(dev);
 431         drm_mode_create_scaling_mode_property(dev);
 432         drm_mode_create_dvi_i_properties(dev);
 433
 434         if (nv_device(drm->device)->card_type < NV_50)
 435                 gen = 0;
 436         else
 437         if (nv_device(drm->device)->card_type < NV_D0)
 438                 gen = 1;
 439         else
 440                 gen = 2;
 441
 442         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 443         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 444         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 445
 446         disp->underscan_hborder_property =
 447                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 448
 449         disp->underscan_vborder_property =
 450                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 451
 452         if (gen >= 1) {
 453                 /* -90..+90 */
 454                 disp->vibrant_hue_property =
 455                         drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 456
 457                 /* -100..+100 */
 458                 disp->color_vibrance_property =
 459                         drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 460         }
 461
 462         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 463         dev->mode_config.fb_base = nv_device_resource_start(device, 1);
 464
 465         dev->mode_config.min_width = 0;
 466         dev->mode_config.min_height = 0;
 467         if (nv_device(drm->device)->card_type < NV_10) {
 468                 dev->mode_config.max_width = 2048;
 469                 dev->mode_config.max_height = 2048;
 470         } else
 471         if (nv_device(drm->device)->card_type < NV_50) {
 472                 dev->mode_config.max_width = 4096;
 473                 dev->mode_config.max_height = 4096;
 474         } else {
 475                 dev->mode_config.max_width = 8192;
 476                 dev->mode_config.max_height = 8192;
 477         }
 478
 479         dev->mode_config.preferred_depth = 24;
 480         dev->mode_config.prefer_shadow = 1;
 481
 482         if (nv_device(drm->device)->chipset < 0x11)
 483                 dev->mode_config.async_page_flip = false;
 484         else
 485                 dev->mode_config.async_page_flip = true;
 486
 487         drm_kms_helper_poll_init(dev);
 488         drm_kms_helper_poll_disable(dev);
 489
 490         if (drm->vbios.dcb.entries) {
 491                 static const u16 oclass[] = {
 492                         GM107_DISP_CLASS,
 493                         NVF0_DISP_CLASS,
 494                         NVE0_DISP_CLASS,
 495                         NVD0_DISP_CLASS,
 496                         NVA3_DISP_CLASS,
 497                         NV94_DISP_CLASS,
 498                         NVA0_DISP_CLASS,
 499                         NV84_DISP_CLASS,
 500                         NV50_DISP_CLASS,
 501                         NV04_DISP_CLASS,
 502                 };
 503                 int i;
 504
 505                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 506                         ret = nouveau_object_new(nv_object(drm), NVDRM_DEVICE,
 507                                                  NVDRM_DISPLAY, oclass[i],
 508                                                  NULL, 0, &disp->core);
 509                 }
 510
 511                 if (ret == 0) {
 512                         if (nv_mclass(disp->core) < NV50_DISP_CLASS)
 513                                 ret = nv04_display_create(dev);
 514                         else
 515                                 ret = nv50_display_create(dev);
 516                 }
 517         } else {
 518                 ret = 0;
 519         }
 520
 521         if (ret)
 522                 goto disp_create_err;
 523
 524         if (dev->mode_config.num_crtc) {
 525                 ret = nouveau_display_vblank_init(dev);
 526                 if (ret)
 527                         goto vblank_err;
 528         }
 529
 530         nouveau_backlight_init(dev);
 531         return 0;
 532
 533 vblank_err:
 534         disp->dtor(dev);
 535 disp_create_err:
 536         drm_kms_helper_poll_fini(dev);
 537         drm_mode_config_cleanup(dev);
 538         return ret;
 539 }
 540
 541 void
 542 nouveau_display_destroy(struct drm_device *dev)
 543 {
 544         struct nouveau_display *disp = nouveau_display(dev);
 545         struct nouveau_drm *drm = nouveau_drm(dev);
 546
 547         nouveau_backlight_exit(dev);
 548         nouveau_display_vblank_fini(dev);
 549
 550         drm_kms_helper_poll_fini(dev);
 551         drm_mode_config_cleanup(dev);
 552
 553         if (disp->dtor)
 554                 disp->dtor(dev);
 555
 556         nouveau_object_del(nv_object(drm), NVDRM_DEVICE, NVDRM_DISPLAY);
 557
 558         nouveau_drm(dev)->display = NULL;
 559         kfree(disp);
 560 }
 561
 562 int
 563 nouveau_display_suspend(struct drm_device *dev)
 564 {
 565         struct nouveau_drm *drm = nouveau_drm(dev);
 566         struct drm_crtc *crtc;
 567
 568         nouveau_display_fini(dev);
 569
 570         NV_INFO(drm, "unpinning framebuffer(s)...\n");
 571         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 572                 struct nouveau_framebuffer *nouveau_fb;
 573
 574                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 575                 if (!nouveau_fb || !nouveau_fb->nvbo)
 576                         continue;
 577
 578                 nouveau_bo_unpin(nouveau_fb->nvbo);
 579         }
 580
 581         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 582                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 583
 584                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 585                 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 586         }
 587
 588         return 0;
 589 }
 590
 591 void
 592 nouveau_display_repin(struct drm_device *dev)
 593 {
 594         struct nouveau_drm *drm = nouveau_drm(dev);
 595         struct drm_crtc *crtc;
 596         int ret;
 597
 598         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 599                 struct nouveau_framebuffer *nouveau_fb;
 600
 601                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 602                 if (!nouveau_fb || !nouveau_fb->nvbo)
 603                         continue;
 604
 605                 nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
 606         }
 607
 608         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 609                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 610
 611                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
 612                 if (!ret)
 613                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 614                 if (ret)
 615                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 616         }
 617 }
 618
 619 void
 620 nouveau_display_resume(struct drm_device *dev)
 621 {
 622         struct drm_crtc *crtc;
 623         nouveau_display_init(dev);
 624
 625         /* Force CLUT to get re-loaded during modeset */
 626         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 627                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 628
 629                 nv_crtc->lut.depth = 0;
 630         }
 631
 632         drm_helper_resume_force_mode(dev);
 633
 634         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 635                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 636                 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
 637
 638                 nv_crtc->cursor.set_offset(nv_crtc, offset);
 639                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 640                                                  nv_crtc->cursor_saved_y);
 641         }
 642 }
 643
 644 static int
 645 nouveau_page_flip_emit(struct nouveau_channel *chan,
 646                        struct nouveau_bo *old_bo,
 647                        struct nouveau_bo *new_bo,
 648                        struct nouveau_page_flip_state *s,
 649                        struct nouveau_fence **pfence)
 650 {
 651         struct nouveau_fence_chan *fctx = chan->fence;
 652         struct nouveau_drm *drm = chan->drm;
 653         struct drm_device *dev = drm->dev;
 654         unsigned long flags;
 655         int ret;
 656
 657         /* Queue it to the pending list */
 658         spin_lock_irqsave(&dev->event_lock, flags);
 659         list_add_tail(&s->head, &fctx->flip);
 660         spin_unlock_irqrestore(&dev->event_lock, flags);
 661
 662         /* Synchronize with the old framebuffer */
 663         ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
 664         if (ret)
 665                 goto fail;
 666
 667         /* Emit the pageflip */
 668         ret = RING_SPACE(chan, 2);
 669         if (ret)
 670                 goto fail;
 671
 672         if (nv_device(drm->device)->card_type < NV_C0)
 673                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 674         else
 675                 BEGIN_NVC0(chan, FermiSw, NV_SW_PAGE_FLIP, 1);
 676         OUT_RING  (chan, 0x00000000);
 677         FIRE_RING (chan);
 678
 679         ret = nouveau_fence_new(chan, false, pfence);
 680         if (ret)
 681                 goto fail;
 682
 683         return 0;
 684 fail:
 685         spin_lock_irqsave(&dev->event_lock, flags);
 686         list_del(&s->head);
 687         spin_unlock_irqrestore(&dev->event_lock, flags);
 688         return ret;
 689 }
 690
 691 int
 692 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 693                        struct drm_pending_vblank_event *event, u32 flags)
 694 {
 695         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 696         struct drm_device *dev = crtc->dev;
 697         struct nouveau_drm *drm = nouveau_drm(dev);
 698         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 699         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 700         struct nouveau_page_flip_state *s;
 701         struct nouveau_channel *chan = drm->channel;
 702         struct nouveau_fence *fence;
 703         int ret;
 704
 705         if (!drm->channel)
 706                 return -ENODEV;
 707
 708         s = kzalloc(sizeof(*s), GFP_KERNEL);
 709         if (!s)
 710                 return -ENOMEM;
 711
 712         if (new_bo != old_bo) {
 713                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
 714                 if (ret)
 715                         goto fail_free;
 716         }
 717
 718         mutex_lock(&chan->cli->mutex);
 719
 720         /* synchronise rendering channel with the kernel's channel */
 721         spin_lock(&new_bo->bo.bdev->fence_lock);
 722         fence = nouveau_fence_ref(new_bo->bo.sync_obj);
 723         spin_unlock(&new_bo->bo.bdev->fence_lock);
 724         ret = nouveau_fence_sync(fence, chan);
 725         nouveau_fence_unref(&fence);
 726         if (ret)
 727                 goto fail_unpin;
 728
 729         ret = ttm_bo_reserve(&old_bo->bo, true, false, false, NULL);
 730         if (ret)
 731                 goto fail_unpin;
 732
 733         /* Initialize a page flip struct */
 734         *s = (struct nouveau_page_flip_state)
 735                 { { }, event, nouveau_crtc(crtc)->index,
 736                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 737                   new_bo->bo.offset };
 738
 739         /* Keep vblanks on during flip, for the target crtc of this flip */
 740         drm_vblank_get(dev, nouveau_crtc(crtc)->index);
 741
 742         /* Emit a page flip */
 743         if (nv_device(drm->device)->card_type >= NV_50) {
 744                 ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
 745                 if (ret)
 746                         goto fail_unreserve;
 747         } else {
 748                 struct nv04_display *dispnv04 = nv04_display(dev);
 749                 int head = nouveau_crtc(crtc)->index;
 750
 751                 if (swap_interval) {
 752                         ret = RING_SPACE(chan, 8);
 753                         if (ret)
 754                                 goto fail_unreserve;
 755
 756                         BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 757                         OUT_RING  (chan, 0);
 758                         BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 759                         OUT_RING  (chan, head);
 760                         BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 761                         OUT_RING  (chan, 0);
 762                         BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 763                         OUT_RING  (chan, 0);
 764                 }
 765
 766                 nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 767         }
 768
 769         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 770         if (ret)
 771                 goto fail_unreserve;
 772         mutex_unlock(&chan->cli->mutex);
 773
 774         /* Update the crtc struct and cleanup */
 775         crtc->primary->fb = fb;
 776
 777         nouveau_bo_fence(old_bo, fence);
 778         ttm_bo_unreserve(&old_bo->bo);
 779         if (old_bo != new_bo)
 780                 nouveau_bo_unpin(old_bo);
 781         nouveau_fence_unref(&fence);
 782         return 0;
 783
 784 fail_unreserve:
 785         drm_vblank_put(dev, nouveau_crtc(crtc)->index);
 786         ttm_bo_unreserve(&old_bo->bo);
 787 fail_unpin:
 788         mutex_unlock(&chan->cli->mutex);
 789         if (old_bo != new_bo)
 790                 nouveau_bo_unpin(new_bo);
 791 fail_free:
 792         kfree(s);
 793         return ret;
 794 }
 795
 796 int
 797 nouveau_finish_page_flip(struct nouveau_channel *chan,
 798                          struct nouveau_page_flip_state *ps)
 799 {
 800         struct nouveau_fence_chan *fctx = chan->fence;
 801         struct nouveau_drm *drm = chan->drm;
 802         struct drm_device *dev = drm->dev;
 803         struct nouveau_page_flip_state *s;
 804         unsigned long flags;
 805         int crtcid = -1;
 806
 807         spin_lock_irqsave(&dev->event_lock, flags);
 808
 809         if (list_empty(&fctx->flip)) {
 810                 NV_ERROR(drm, "unexpected pageflip\n");
 811                 spin_unlock_irqrestore(&dev->event_lock, flags);
 812                 return -EINVAL;
 813         }
 814
 815         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 816         if (s->event) {
 817                 /* Vblank timestamps/counts are only correct on >= NV-50 */
 818                 if (nv_device(drm->device)->card_type >= NV_50)
 819                         crtcid = s->crtc;
 820
 821                 drm_send_vblank_event(dev, crtcid, s->event);
 822         }
 823
 824         /* Give up ownership of vblank for page-flipped crtc */
 825         drm_vblank_put(dev, s->crtc);
 826
 827         list_del(&s->head);
 828         if (ps)
 829                 *ps = *s;
 830         kfree(s);
 831
 832         spin_unlock_irqrestore(&dev->event_lock, flags);
 833         return 0;
 834 }
 835
 836 int
 837 nouveau_flip_complete(void *data)
 838 {
 839         struct nouveau_channel *chan = data;
 840         struct nouveau_drm *drm = chan->drm;
 841         struct nouveau_page_flip_state state;
 842
 843         if (!nouveau_finish_page_flip(chan, &state)) {
 844                 if (nv_device(drm->device)->card_type < NV_50) {
 845                         nv_set_crtc_base(drm->dev, state.crtc, state.offset +
 846                                          state.y * state.pitch +
 847                                          state.x * state.bpp / 8);
 848                 }
 849         }
 850
 851         return 0;
 852 }
 853
 854 int
 855 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 856                             struct drm_mode_create_dumb *args)
 857 {
 858         struct nouveau_bo *bo;
 859         int ret;
 860
 861         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 862         args->size = args->pitch * args->height;
 863         args->size = roundup(args->size, PAGE_SIZE);
 864
 865         ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 866         if (ret)
 867                 return ret;
 868
 869         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 870         drm_gem_object_unreference_unlocked(&bo->gem);
 871         return ret;
 872 }
 873
 874 int
 875 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 876                                 struct drm_device *dev,
 877                                 uint32_t handle, uint64_t *poffset)
 878 {
 879         struct drm_gem_object *gem;
 880
 881         gem = drm_gem_object_lookup(dev, file_priv, handle);
 882         if (gem) {
 883                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 884                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
 885                 drm_gem_object_unreference_unlocked(gem);
 886                 return 0;
 887         }
 888
 889         return -ENOENT;
 890 }