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_atomic.h>
  29 #include <drm/drm_atomic_helper.h>
  30 #include <drm/drm_crtc_helper.h>
  31
  32 #include <nvif/class.h>
  33
  34 #include "nouveau_fbcon.h"
  35 #include "dispnv04/hw.h"
  36 #include "nouveau_crtc.h"
  37 #include "nouveau_dma.h"
  38 #include "nouveau_gem.h"
  39 #include "nouveau_connector.h"
  40 #include "nv50_display.h"
  41
  42 #include "nouveau_fence.h"
  43
  44 #include <nvif/cl0046.h>
  45 #include <nvif/event.h>
  46
  47 static int
  48 nouveau_display_vblank_handler(struct nvif_notify *notify)
  49 {
  50         struct nouveau_crtc *nv_crtc =
  51                 container_of(notify, typeof(*nv_crtc), vblank);
  52         drm_crtc_handle_vblank(&nv_crtc->base);
  53         return NVIF_NOTIFY_KEEP;
  54 }
  55
  56 int
  57 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
  58 {
  59         struct drm_crtc *crtc;
  60         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
  61                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
  62                 if (nv_crtc->index == pipe) {
  63                         nvif_notify_get(&nv_crtc->vblank);
  64                         return 0;
  65                 }
  66         }
  67         return -EINVAL;
  68 }
  69
  70 void
  71 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
  72 {
  73         struct drm_crtc *crtc;
  74         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
  75                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
  76                 if (nv_crtc->index == pipe) {
  77                         nvif_notify_put(&nv_crtc->vblank);
  78                         return;
  79                 }
  80         }
  81 }
  82
  83 static inline int
  84 calc(int blanks, int blanke, int total, int line)
  85 {
  86         if (blanke >= blanks) {
  87                 if (line >= blanks)
  88                         line -= total;
  89         } else {
  90                 if (line >= blanks)
  91                         line -= total;
  92                 line -= blanke + 1;
  93         }
  94         return line;
  95 }
  96
  97 static int
  98 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
  99                                 ktime_t *stime, ktime_t *etime)
 100 {
 101         struct {
 102                 struct nv04_disp_mthd_v0 base;
 103                 struct nv04_disp_scanoutpos_v0 scan;
 104         } args = {
 105                 .base.method = NV04_DISP_SCANOUTPOS,
 106                 .base.head = nouveau_crtc(crtc)->index,
 107         };
 108         struct nouveau_display *disp = nouveau_display(crtc->dev);
 109         struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
 110         int ret, retry = 1;
 111
 112         do {
 113                 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
 114                 if (ret != 0)
 115                         return 0;
 116
 117                 if (args.scan.vline) {
 118                         ret |= DRM_SCANOUTPOS_ACCURATE;
 119                         ret |= DRM_SCANOUTPOS_VALID;
 120                         break;
 121                 }
 122
 123                 if (retry) ndelay(vblank->linedur_ns);
 124         } while (retry--);
 125
 126         *hpos = args.scan.hline;
 127         *vpos = calc(args.scan.vblanks, args.scan.vblanke,
 128                      args.scan.vtotal, args.scan.vline);
 129         if (stime) *stime = ns_to_ktime(args.scan.time[0]);
 130         if (etime) *etime = ns_to_ktime(args.scan.time[1]);
 131
 132         if (*vpos < 0)
 133                 ret |= DRM_SCANOUTPOS_IN_VBLANK;
 134         return ret;
 135 }
 136
 137 int
 138 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
 139                            unsigned int flags, int *vpos, int *hpos,
 140                            ktime_t *stime, ktime_t *etime,
 141                            const struct drm_display_mode *mode)
 142 {
 143         struct drm_crtc *crtc;
 144
 145         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 146                 if (nouveau_crtc(crtc)->index == pipe) {
 147                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 148                                                                stime, etime);
 149                 }
 150         }
 151
 152         return 0;
 153 }
 154
 155 int
 156 nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe,
 157                          int *max_error, struct timeval *time, unsigned flags)
 158 {
 159         struct drm_crtc *crtc;
 160
 161         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 162                 if (nouveau_crtc(crtc)->index == pipe) {
 163                         struct drm_display_mode *mode;
 164                         if (dev->mode_config.funcs->atomic_commit)
 165                                 mode = &crtc->state->adjusted_mode;
 166                         else
 167                                 mode = &crtc->hwmode;
 168                         return drm_calc_vbltimestamp_from_scanoutpos(dev,
 169                                         pipe, max_error, time, flags, mode);
 170                 }
 171         }
 172
 173         return -EINVAL;
 174 }
 175
 176 static void
 177 nouveau_display_vblank_fini(struct drm_device *dev)
 178 {
 179         struct drm_crtc *crtc;
 180
 181         drm_vblank_cleanup(dev);
 182
 183         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 184                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 185                 nvif_notify_fini(&nv_crtc->vblank);
 186         }
 187 }
 188
 189 static int
 190 nouveau_display_vblank_init(struct drm_device *dev)
 191 {
 192         struct nouveau_display *disp = nouveau_display(dev);
 193         struct drm_crtc *crtc;
 194         int ret;
 195
 196         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 197                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 198                 ret = nvif_notify_init(&disp->disp,
 199                                        nouveau_display_vblank_handler, false,
 200                                        NV04_DISP_NTFY_VBLANK,
 201                                        &(struct nvif_notify_head_req_v0) {
 202                                         .head = nv_crtc->index,
 203                                        },
 204                                        sizeof(struct nvif_notify_head_req_v0),
 205                                        sizeof(struct nvif_notify_head_rep_v0),
 206                                        &nv_crtc->vblank);
 207                 if (ret) {
 208                         nouveau_display_vblank_fini(dev);
 209                         return ret;
 210                 }
 211         }
 212
 213         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 214         if (ret) {
 215                 nouveau_display_vblank_fini(dev);
 216                 return ret;
 217         }
 218
 219         return 0;
 220 }
 221
 222 static void
 223 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 224 {
 225         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 226
 227         if (fb->nvbo)
 228                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 229
 230         drm_framebuffer_cleanup(drm_fb);
 231         kfree(fb);
 232 }
 233
 234 static int
 235 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 236                                        struct drm_file *file_priv,
 237                                        unsigned int *handle)
 238 {
 239         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 240
 241         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 242 }
 243
 244 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 245         .destroy = nouveau_user_framebuffer_destroy,
 246         .create_handle = nouveau_user_framebuffer_create_handle,
 247 };
 248
 249 int
 250 nouveau_framebuffer_new(struct drm_device *dev,
 251                         const struct drm_mode_fb_cmd2 *mode_cmd,
 252                         struct nouveau_bo *nvbo,
 253                         struct nouveau_framebuffer **pfb)
 254 {
 255         struct nouveau_framebuffer *fb;
 256         int ret;
 257
 258         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 259                 return -ENOMEM;
 260
 261         drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd);
 262         fb->nvbo = nvbo;
 263
 264         ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
 265         if (ret)
 266                 kfree(fb);
 267         return ret;
 268 }
 269
 270 struct drm_framebuffer *
 271 nouveau_user_framebuffer_create(struct drm_device *dev,
 272                                 struct drm_file *file_priv,
 273                                 const struct drm_mode_fb_cmd2 *mode_cmd)
 274 {
 275         struct nouveau_framebuffer *fb;
 276         struct nouveau_bo *nvbo;
 277         struct drm_gem_object *gem;
 278         int ret;
 279
 280         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 281         if (!gem)
 282                 return ERR_PTR(-ENOENT);
 283         nvbo = nouveau_gem_object(gem);
 284
 285         ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
 286         if (ret == 0)
 287                 return &fb->base;
 288
 289         drm_gem_object_unreference_unlocked(gem);
 290         return ERR_PTR(ret);
 291 }
 292
 293 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 294         .fb_create = nouveau_user_framebuffer_create,
 295         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 296 };
 297
 298
 299 struct nouveau_drm_prop_enum_list {
 300         u8 gen_mask;
 301         int type;
 302         char *name;
 303 };
 304
 305 static struct nouveau_drm_prop_enum_list underscan[] = {
 306         { 6, UNDERSCAN_AUTO, "auto" },
 307         { 6, UNDERSCAN_OFF, "off" },
 308         { 6, UNDERSCAN_ON, "on" },
 309         {}
 310 };
 311
 312 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 313         { 7, DITHERING_MODE_AUTO, "auto" },
 314         { 7, DITHERING_MODE_OFF, "off" },
 315         { 1, DITHERING_MODE_ON, "on" },
 316         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 317         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 318         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 319         {}
 320 };
 321
 322 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 323         { 6, DITHERING_DEPTH_AUTO, "auto" },
 324         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 325         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 326         {}
 327 };
 328
 329 #define PROP_ENUM(p,gen,n,list) do {                                           \
 330         struct nouveau_drm_prop_enum_list *l = (list);                         \
 331         int c = 0;                                                             \
 332         while (l->gen_mask) {                                                  \
 333                 if (l->gen_mask & (1 << (gen)))                                \
 334                         c++;                                                   \
 335                 l++;                                                           \
 336         }                                                                      \
 337         if (c) {                                                               \
 338                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 339                 l = (list);                                                    \
 340                 c = 0;                                                         \
 341                 while (p && l->gen_mask) {                                     \
 342                         if (l->gen_mask & (1 << (gen))) {                      \
 343                                 drm_property_add_enum(p, c, l->type, l->name); \
 344                                 c++;                                           \
 345                         }                                                      \
 346                         l++;                                                   \
 347                 }                                                              \
 348         }                                                                      \
 349 } while(0)
 350
 351 int
 352 nouveau_display_init(struct drm_device *dev)
 353 {
 354         struct nouveau_display *disp = nouveau_display(dev);
 355         struct nouveau_drm *drm = nouveau_drm(dev);
 356         struct drm_connector *connector;
 357         int ret;
 358
 359         ret = disp->init(dev);
 360         if (ret)
 361                 return ret;
 362
 363         /* enable polling for external displays */
 364         drm_kms_helper_poll_enable(dev);
 365
 366         /* enable hotplug interrupts */
 367         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 368                 struct nouveau_connector *conn = nouveau_connector(connector);
 369                 nvif_notify_get(&conn->hpd);
 370         }
 371
 372         /* enable flip completion events */
 373         nvif_notify_get(&drm->flip);
 374         return ret;
 375 }
 376
 377 void
 378 nouveau_display_fini(struct drm_device *dev, bool suspend)
 379 {
 380         struct nouveau_display *disp = nouveau_display(dev);
 381         struct nouveau_drm *drm = nouveau_drm(dev);
 382         struct drm_connector *connector;
 383         struct drm_crtc *crtc;
 384
 385         if (!suspend)
 386                 drm_crtc_force_disable_all(dev);
 387
 388         /* Make sure that drm and hw vblank irqs get properly disabled. */
 389         drm_for_each_crtc(crtc, dev)
 390                 drm_crtc_vblank_off(crtc);
 391
 392         /* disable flip completion events */
 393         nvif_notify_put(&drm->flip);
 394
 395         /* disable hotplug interrupts */
 396         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 397                 struct nouveau_connector *conn = nouveau_connector(connector);
 398                 nvif_notify_put(&conn->hpd);
 399         }
 400
 401         drm_kms_helper_poll_disable(dev);
 402         disp->fini(dev);
 403 }
 404
 405 static void
 406 nouveau_display_create_properties(struct drm_device *dev)
 407 {
 408         struct nouveau_display *disp = nouveau_display(dev);
 409         int gen;
 410
 411         if (disp->disp.oclass < NV50_DISP)
 412                 gen = 0;
 413         else
 414         if (disp->disp.oclass < GF110_DISP)
 415                 gen = 1;
 416         else
 417                 gen = 2;
 418
 419         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 420         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 421         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 422
 423         disp->underscan_hborder_property =
 424                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 425
 426         disp->underscan_vborder_property =
 427                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 428
 429         if (gen < 1)
 430                 return;
 431
 432         /* -90..+90 */
 433         disp->vibrant_hue_property =
 434                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 435
 436         /* -100..+100 */
 437         disp->color_vibrance_property =
 438                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 439 }
 440
 441 int
 442 nouveau_display_create(struct drm_device *dev)
 443 {
 444         struct nouveau_drm *drm = nouveau_drm(dev);
 445         struct nvkm_device *device = nvxx_device(&drm->device);
 446         struct nouveau_display *disp;
 447         int ret;
 448
 449         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 450         if (!disp)
 451                 return -ENOMEM;
 452
 453         drm_mode_config_init(dev);
 454         drm_mode_create_scaling_mode_property(dev);
 455         drm_mode_create_dvi_i_properties(dev);
 456
 457         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 458         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 459
 460         dev->mode_config.min_width = 0;
 461         dev->mode_config.min_height = 0;
 462         if (drm->device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 463                 dev->mode_config.max_width = 2048;
 464                 dev->mode_config.max_height = 2048;
 465         } else
 466         if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 467                 dev->mode_config.max_width = 4096;
 468                 dev->mode_config.max_height = 4096;
 469         } else
 470         if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 471                 dev->mode_config.max_width = 8192;
 472                 dev->mode_config.max_height = 8192;
 473         } else {
 474                 dev->mode_config.max_width = 16384;
 475                 dev->mode_config.max_height = 16384;
 476         }
 477
 478         dev->mode_config.preferred_depth = 24;
 479         dev->mode_config.prefer_shadow = 1;
 480
 481         if (drm->device.info.chipset < 0x11)
 482                 dev->mode_config.async_page_flip = false;
 483         else
 484                 dev->mode_config.async_page_flip = true;
 485
 486         drm_kms_helper_poll_init(dev);
 487         drm_kms_helper_poll_disable(dev);
 488
 489         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 490                 static const u16 oclass[] = {
 491                         GP104_DISP,
 492                         GP100_DISP,
 493                         GM200_DISP,
 494                         GM107_DISP,
 495                         GK110_DISP,
 496                         GK104_DISP,
 497                         GF110_DISP,
 498                         GT214_DISP,
 499                         GT206_DISP,
 500                         GT200_DISP,
 501                         G82_DISP,
 502                         NV50_DISP,
 503                         NV04_DISP,
 504                 };
 505                 int i;
 506
 507                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 508                         ret = nvif_object_init(&drm->device.object, 0,
 509                                                oclass[i], NULL, 0, &disp->disp);
 510                 }
 511
 512                 if (ret == 0) {
 513                         nouveau_display_create_properties(dev);
 514                         if (disp->disp.oclass < NV50_DISP)
 515                                 ret = nv04_display_create(dev);
 516                         else
 517                                 ret = nv50_display_create(dev);
 518                 }
 519         } else {
 520                 ret = 0;
 521         }
 522
 523         if (ret)
 524                 goto disp_create_err;
 525
 526         drm_mode_config_reset(dev);
 527
 528         if (dev->mode_config.num_crtc) {
 529                 ret = nouveau_display_vblank_init(dev);
 530                 if (ret)
 531                         goto vblank_err;
 532         }
 533
 534         nouveau_backlight_init(dev);
 535         return 0;
 536
 537 vblank_err:
 538         disp->dtor(dev);
 539 disp_create_err:
 540         drm_kms_helper_poll_fini(dev);
 541         drm_mode_config_cleanup(dev);
 542         return ret;
 543 }
 544
 545 void
 546 nouveau_display_destroy(struct drm_device *dev)
 547 {
 548         struct nouveau_display *disp = nouveau_display(dev);
 549
 550         nouveau_backlight_exit(dev);
 551         nouveau_display_vblank_fini(dev);
 552
 553         drm_kms_helper_poll_fini(dev);
 554         drm_mode_config_cleanup(dev);
 555
 556         if (disp->dtor)
 557                 disp->dtor(dev);
 558
 559         nvif_object_fini(&disp->disp);
 560
 561         nouveau_drm(dev)->display = NULL;
 562         kfree(disp);
 563 }
 564
 565 static int
 566 nouveau_atomic_disable_connector(struct drm_atomic_state *state,
 567                                  struct drm_connector *connector)
 568 {
 569         struct drm_connector_state *connector_state;
 570         struct drm_crtc *crtc;
 571         struct drm_crtc_state *crtc_state;
 572         struct drm_plane_state *plane_state;
 573         struct drm_plane *plane;
 574         int ret;
 575
 576         if (!(crtc = connector->state->crtc))
 577                 return 0;
 578
 579         connector_state = drm_atomic_get_connector_state(state, connector);
 580         if (IS_ERR(connector_state))
 581                 return PTR_ERR(connector_state);
 582
 583         ret = drm_atomic_set_crtc_for_connector(connector_state, NULL);
 584         if (ret)
 585                 return ret;
 586
 587         crtc_state = drm_atomic_get_crtc_state(state, crtc);
 588         if (IS_ERR(crtc_state))
 589                 return PTR_ERR(crtc_state);
 590
 591         ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
 592         if (ret)
 593                 return ret;
 594
 595         crtc_state->active = false;
 596
 597         drm_for_each_plane_mask(plane, connector->dev, crtc_state->plane_mask) {
 598                 plane_state = drm_atomic_get_plane_state(state, plane);
 599                 if (IS_ERR(plane_state))
 600                         return PTR_ERR(plane_state);
 601
 602                 ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
 603                 if (ret)
 604                         return ret;
 605
 606                 drm_atomic_set_fb_for_plane(plane_state, NULL);
 607         }
 608
 609         return 0;
 610 }
 611
 612 static int
 613 nouveau_atomic_disable(struct drm_device *dev,
 614                        struct drm_modeset_acquire_ctx *ctx)
 615 {
 616         struct drm_atomic_state *state;
 617         struct drm_connector *connector;
 618         int ret;
 619
 620         state = drm_atomic_state_alloc(dev);
 621         if (!state)
 622                 return -ENOMEM;
 623
 624         state->acquire_ctx = ctx;
 625
 626         drm_for_each_connector(connector, dev) {
 627                 ret = nouveau_atomic_disable_connector(state, connector);
 628                 if (ret)
 629                         break;
 630         }
 631
 632         if (ret == 0)
 633                 ret = drm_atomic_commit(state);
 634         drm_atomic_state_put(state);
 635         return ret;
 636 }
 637
 638 static struct drm_atomic_state *
 639 nouveau_atomic_suspend(struct drm_device *dev)
 640 {
 641         struct drm_modeset_acquire_ctx ctx;
 642         struct drm_atomic_state *state;
 643         int ret;
 644
 645         drm_modeset_acquire_init(&ctx, 0);
 646
 647 retry:
 648         ret = drm_modeset_lock_all_ctx(dev, &ctx);
 649         if (ret < 0) {
 650                 state = ERR_PTR(ret);
 651                 goto unlock;
 652         }
 653
 654         state = drm_atomic_helper_duplicate_state(dev, &ctx);
 655         if (IS_ERR(state))
 656                 goto unlock;
 657
 658         ret = nouveau_atomic_disable(dev, &ctx);
 659         if (ret < 0) {
 660                 drm_atomic_state_put(state);
 661                 state = ERR_PTR(ret);
 662                 goto unlock;
 663         }
 664
 665 unlock:
 666         if (PTR_ERR(state) == -EDEADLK) {
 667                 drm_modeset_backoff(&ctx);
 668                 goto retry;
 669         }
 670
 671         drm_modeset_drop_locks(&ctx);
 672         drm_modeset_acquire_fini(&ctx);
 673         return state;
 674 }
 675
 676 int
 677 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 678 {
 679         struct nouveau_display *disp = nouveau_display(dev);
 680         struct drm_crtc *crtc;
 681
 682         if (dev->mode_config.funcs->atomic_commit) {
 683                 if (!runtime) {
 684                         disp->suspend = nouveau_atomic_suspend(dev);
 685                         if (IS_ERR(disp->suspend)) {
 686                                 int ret = PTR_ERR(disp->suspend);
 687                                 disp->suspend = NULL;
 688                                 return ret;
 689                         }
 690                 }
 691
 692                 nouveau_display_fini(dev, true);
 693                 return 0;
 694         }
 695
 696         nouveau_display_fini(dev, true);
 697
 698         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 699                 struct nouveau_framebuffer *nouveau_fb;
 700
 701                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 702                 if (!nouveau_fb || !nouveau_fb->nvbo)
 703                         continue;
 704
 705                 nouveau_bo_unpin(nouveau_fb->nvbo);
 706         }
 707
 708         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 709                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 710                 if (nv_crtc->cursor.nvbo) {
 711                         if (nv_crtc->cursor.set_offset)
 712                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 713                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 714                 }
 715         }
 716
 717         return 0;
 718 }
 719
 720 void
 721 nouveau_display_resume(struct drm_device *dev, bool runtime)
 722 {
 723         struct nouveau_display *disp = nouveau_display(dev);
 724         struct nouveau_drm *drm = nouveau_drm(dev);
 725         struct drm_crtc *crtc;
 726         int ret;
 727
 728         if (dev->mode_config.funcs->atomic_commit) {
 729                 nouveau_display_init(dev);
 730                 if (disp->suspend) {
 731                         drm_atomic_helper_resume(dev, disp->suspend);
 732                         disp->suspend = NULL;
 733                 }
 734                 return;
 735         }
 736
 737         /* re-pin fb/cursors */
 738         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 739                 struct nouveau_framebuffer *nouveau_fb;
 740
 741                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 742                 if (!nouveau_fb || !nouveau_fb->nvbo)
 743                         continue;
 744
 745                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 746                 if (ret)
 747                         NV_ERROR(drm, "Could not pin framebuffer\n");
 748         }
 749
 750         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 751                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 752                 if (!nv_crtc->cursor.nvbo)
 753                         continue;
 754
 755                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 756                 if (!ret && nv_crtc->cursor.set_offset)
 757                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 758                 if (ret)
 759                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 760         }
 761
 762         nouveau_display_init(dev);
 763
 764         /* Force CLUT to get re-loaded during modeset */
 765         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 766                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 767
 768                 nv_crtc->lut.depth = 0;
 769         }
 770
 771         /* This should ensure we don't hit a locking problem when someone
 772          * wakes us up via a connector.  We should never go into suspend
 773          * while the display is on anyways.
 774          */
 775         if (runtime)
 776                 return;
 777
 778         drm_helper_resume_force_mode(dev);
 779
 780         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 781                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 782
 783                 if (!nv_crtc->cursor.nvbo)
 784                         continue;
 785
 786                 if (nv_crtc->cursor.set_offset)
 787                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 788                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 789                                                  nv_crtc->cursor_saved_y);
 790         }
 791 }
 792
 793 static int
 794 nouveau_page_flip_emit(struct nouveau_channel *chan,
 795                        struct nouveau_bo *old_bo,
 796                        struct nouveau_bo *new_bo,
 797                        struct nouveau_page_flip_state *s,
 798                        struct nouveau_fence **pfence)
 799 {
 800         struct nouveau_fence_chan *fctx = chan->fence;
 801         struct nouveau_drm *drm = chan->drm;
 802         struct drm_device *dev = drm->dev;
 803         unsigned long flags;
 804         int ret;
 805
 806         /* Queue it to the pending list */
 807         spin_lock_irqsave(&dev->event_lock, flags);
 808         list_add_tail(&s->head, &fctx->flip);
 809         spin_unlock_irqrestore(&dev->event_lock, flags);
 810
 811         /* Synchronize with the old framebuffer */
 812         ret = nouveau_fence_sync(old_bo, chan, false, false);
 813         if (ret)
 814                 goto fail;
 815
 816         /* Emit the pageflip */
 817         ret = RING_SPACE(chan, 2);
 818         if (ret)
 819                 goto fail;
 820
 821         BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 822         OUT_RING  (chan, 0x00000000);
 823         FIRE_RING (chan);
 824
 825         ret = nouveau_fence_new(chan, false, pfence);
 826         if (ret)
 827                 goto fail;
 828
 829         return 0;
 830 fail:
 831         spin_lock_irqsave(&dev->event_lock, flags);
 832         list_del(&s->head);
 833         spin_unlock_irqrestore(&dev->event_lock, flags);
 834         return ret;
 835 }
 836
 837 int
 838 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 839                        struct drm_pending_vblank_event *event, u32 flags)
 840 {
 841         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 842         struct drm_device *dev = crtc->dev;
 843         struct nouveau_drm *drm = nouveau_drm(dev);
 844         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 845         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 846         struct nouveau_page_flip_state *s;
 847         struct nouveau_channel *chan;
 848         struct nouveau_cli *cli;
 849         struct nouveau_fence *fence;
 850         struct nv04_display *dispnv04 = nv04_display(dev);
 851         int head = nouveau_crtc(crtc)->index;
 852         int ret;
 853
 854         chan = drm->channel;
 855         if (!chan)
 856                 return -ENODEV;
 857         cli = (void *)chan->user.client;
 858
 859         s = kzalloc(sizeof(*s), GFP_KERNEL);
 860         if (!s)
 861                 return -ENOMEM;
 862
 863         if (new_bo != old_bo) {
 864                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 865                 if (ret)
 866                         goto fail_free;
 867         }
 868
 869         mutex_lock(&cli->mutex);
 870         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
 871         if (ret)
 872                 goto fail_unpin;
 873
 874         /* synchronise rendering channel with the kernel's channel */
 875         ret = nouveau_fence_sync(new_bo, chan, false, true);
 876         if (ret) {
 877                 ttm_bo_unreserve(&new_bo->bo);
 878                 goto fail_unpin;
 879         }
 880
 881         if (new_bo != old_bo) {
 882                 ttm_bo_unreserve(&new_bo->bo);
 883
 884                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
 885                 if (ret)
 886                         goto fail_unpin;
 887         }
 888
 889         /* Initialize a page flip struct */
 890         *s = (struct nouveau_page_flip_state)
 891                 { { }, event, crtc, fb->bits_per_pixel, fb->pitches[0],
 892                   new_bo->bo.offset };
 893
 894         /* Keep vblanks on during flip, for the target crtc of this flip */
 895         drm_crtc_vblank_get(crtc);
 896
 897         /* Emit a page flip */
 898         if (swap_interval) {
 899                 ret = RING_SPACE(chan, 8);
 900                 if (ret)
 901                         goto fail_unreserve;
 902
 903                 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 904                 OUT_RING  (chan, 0);
 905                 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 906                 OUT_RING  (chan, head);
 907                 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 908                 OUT_RING  (chan, 0);
 909                 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 910                 OUT_RING  (chan, 0);
 911         }
 912
 913         nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 914
 915         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 916         if (ret)
 917                 goto fail_unreserve;
 918         mutex_unlock(&cli->mutex);
 919
 920         /* Update the crtc struct and cleanup */
 921         crtc->primary->fb = fb;
 922
 923         nouveau_bo_fence(old_bo, fence, false);
 924         ttm_bo_unreserve(&old_bo->bo);
 925         if (old_bo != new_bo)
 926                 nouveau_bo_unpin(old_bo);
 927         nouveau_fence_unref(&fence);
 928         return 0;
 929
 930 fail_unreserve:
 931         drm_crtc_vblank_put(crtc);
 932         ttm_bo_unreserve(&old_bo->bo);
 933 fail_unpin:
 934         mutex_unlock(&cli->mutex);
 935         if (old_bo != new_bo)
 936                 nouveau_bo_unpin(new_bo);
 937 fail_free:
 938         kfree(s);
 939         return ret;
 940 }
 941
 942 int
 943 nouveau_finish_page_flip(struct nouveau_channel *chan,
 944                          struct nouveau_page_flip_state *ps)
 945 {
 946         struct nouveau_fence_chan *fctx = chan->fence;
 947         struct nouveau_drm *drm = chan->drm;
 948         struct drm_device *dev = drm->dev;
 949         struct nouveau_page_flip_state *s;
 950         unsigned long flags;
 951
 952         spin_lock_irqsave(&dev->event_lock, flags);
 953
 954         if (list_empty(&fctx->flip)) {
 955                 NV_ERROR(drm, "unexpected pageflip\n");
 956                 spin_unlock_irqrestore(&dev->event_lock, flags);
 957                 return -EINVAL;
 958         }
 959
 960         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 961         if (s->event) {
 962                 drm_crtc_arm_vblank_event(s->crtc, s->event);
 963         } else {
 964                 /* Give up ownership of vblank for page-flipped crtc */
 965                 drm_crtc_vblank_put(s->crtc);
 966         }
 967
 968         list_del(&s->head);
 969         if (ps)
 970                 *ps = *s;
 971         kfree(s);
 972
 973         spin_unlock_irqrestore(&dev->event_lock, flags);
 974         return 0;
 975 }
 976
 977 int
 978 nouveau_flip_complete(struct nvif_notify *notify)
 979 {
 980         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
 981         struct nouveau_channel *chan = drm->channel;
 982         struct nouveau_page_flip_state state;
 983
 984         if (!nouveau_finish_page_flip(chan, &state)) {
 985                 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
 986                                  state.offset + state.crtc->y *
 987                                  state.pitch + state.crtc->x *
 988                                  state.bpp / 8);
 989         }
 990
 991         return NVIF_NOTIFY_KEEP;
 992 }
 993
 994 int
 995 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 996                             struct drm_mode_create_dumb *args)
 997 {
 998         struct nouveau_bo *bo;
 999         uint32_t domain;
1000         int ret;
1001
1002         args->pitch = roundup(args->width * (args->bpp / 8), 256);
1003         args->size = args->pitch * args->height;
1004         args->size = roundup(args->size, PAGE_SIZE);
1005
1006         /* Use VRAM if there is any ; otherwise fallback to system memory */
1007         if (nouveau_drm(dev)->device.info.ram_size != 0)
1008                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
1009         else
1010                 domain = NOUVEAU_GEM_DOMAIN_GART;
1011
1012         ret = nouveau_gem_new(dev, args->size, 0, domain, 0, 0, &bo);
1013         if (ret)
1014                 return ret;
1015
1016         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
1017         drm_gem_object_unreference_unlocked(&bo->gem);
1018         return ret;
1019 }
1020
1021 int
1022 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
1023                                 struct drm_device *dev,
1024                                 uint32_t handle, uint64_t *poffset)
1025 {
1026         struct drm_gem_object *gem;
1027
1028         gem = drm_gem_object_lookup(file_priv, handle);
1029         if (gem) {
1030                 struct nouveau_bo *bo = nouveau_gem_object(gem);
1031                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
1032                 drm_gem_object_unreference_unlocked(gem);
1033                 return 0;
1034         }
1035
1036         return -ENOENT;
1037 }