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 <acpi/video.h>
  28 #include <drm/drmP.h>
  29 #include <drm/drm_atomic.h>
  30 #include <drm/drm_atomic_helper.h>
  31 #include <drm/drm_crtc_helper.h>
  32
  33 #include <nvif/class.h>
  34
  35 #include "nouveau_fbcon.h"
  36 #include "dispnv04/hw.h"
  37 #include "nouveau_crtc.h"
  38 #include "nouveau_dma.h"
  39 #include "nouveau_gem.h"
  40 #include "nouveau_connector.h"
  41 #include "nv50_display.h"
  42
  43 #include "nouveau_fence.h"
  44
  45 #include <nvif/cl0046.h>
  46 #include <nvif/event.h>
  47
  48 static int
  49 nouveau_display_vblank_handler(struct nvif_notify *notify)
  50 {
  51         struct nouveau_crtc *nv_crtc =
  52                 container_of(notify, typeof(*nv_crtc), vblank);
  53         drm_crtc_handle_vblank(&nv_crtc->base);
  54         return NVIF_NOTIFY_KEEP;
  55 }
  56
  57 int
  58 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
  59 {
  60         struct drm_crtc *crtc;
  61         struct nouveau_crtc *nv_crtc;
  62
  63         crtc = drm_crtc_from_index(dev, pipe);
  64         if (!crtc)
  65                 return -EINVAL;
  66
  67         nv_crtc = nouveau_crtc(crtc);
  68         nvif_notify_get(&nv_crtc->vblank);
  69
  70         return 0;
  71 }
  72
  73 void
  74 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
  75 {
  76         struct drm_crtc *crtc;
  77         struct nouveau_crtc *nv_crtc;
  78
  79         crtc = drm_crtc_from_index(dev, pipe);
  80         if (!crtc)
  81                 return;
  82
  83         nv_crtc = nouveau_crtc(crtc);
  84         nvif_notify_put(&nv_crtc->vblank);
  85 }
  86
  87 static inline int
  88 calc(int blanks, int blanke, int total, int line)
  89 {
  90         if (blanke >= blanks) {
  91                 if (line >= blanks)
  92                         line -= total;
  93         } else {
  94                 if (line >= blanks)
  95                         line -= total;
  96                 line -= blanke + 1;
  97         }
  98         return line;
  99 }
 100
 101 static int
 102 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
 103                                 ktime_t *stime, ktime_t *etime)
 104 {
 105         struct {
 106                 struct nv04_disp_mthd_v0 base;
 107                 struct nv04_disp_scanoutpos_v0 scan;
 108         } args = {
 109                 .base.method = NV04_DISP_SCANOUTPOS,
 110                 .base.head = nouveau_crtc(crtc)->index,
 111         };
 112         struct nouveau_display *disp = nouveau_display(crtc->dev);
 113         struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
 114         int ret, retry = 1;
 115
 116         do {
 117                 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
 118                 if (ret != 0)
 119                         return 0;
 120
 121                 if (args.scan.vline) {
 122                         ret |= DRM_SCANOUTPOS_ACCURATE;
 123                         ret |= DRM_SCANOUTPOS_VALID;
 124                         break;
 125                 }
 126
 127                 if (retry) ndelay(vblank->linedur_ns);
 128         } while (retry--);
 129
 130         *hpos = args.scan.hline;
 131         *vpos = calc(args.scan.vblanks, args.scan.vblanke,
 132                      args.scan.vtotal, args.scan.vline);
 133         if (stime) *stime = ns_to_ktime(args.scan.time[0]);
 134         if (etime) *etime = ns_to_ktime(args.scan.time[1]);
 135
 136         if (*vpos < 0)
 137                 ret |= DRM_SCANOUTPOS_IN_VBLANK;
 138         return ret;
 139 }
 140
 141 int
 142 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
 143                            unsigned int flags, int *vpos, int *hpos,
 144                            ktime_t *stime, ktime_t *etime,
 145                            const struct drm_display_mode *mode)
 146 {
 147         struct drm_crtc *crtc;
 148
 149         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 150                 if (nouveau_crtc(crtc)->index == pipe) {
 151                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 152                                                                stime, etime);
 153                 }
 154         }
 155
 156         return 0;
 157 }
 158
 159 int
 160 nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe,
 161                          int *max_error, struct timeval *time, unsigned flags)
 162 {
 163         struct drm_crtc *crtc;
 164
 165         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 166                 if (nouveau_crtc(crtc)->index == pipe) {
 167                         struct drm_display_mode *mode;
 168                         if (drm_drv_uses_atomic_modeset(dev))
 169                                 mode = &crtc->state->adjusted_mode;
 170                         else
 171                                 mode = &crtc->hwmode;
 172                         return drm_calc_vbltimestamp_from_scanoutpos(dev,
 173                                         pipe, max_error, time, flags, mode);
 174                 }
 175         }
 176
 177         return -EINVAL;
 178 }
 179
 180 static void
 181 nouveau_display_vblank_fini(struct drm_device *dev)
 182 {
 183         struct drm_crtc *crtc;
 184
 185         drm_vblank_cleanup(dev);
 186
 187         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 188                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 189                 nvif_notify_fini(&nv_crtc->vblank);
 190         }
 191 }
 192
 193 static int
 194 nouveau_display_vblank_init(struct drm_device *dev)
 195 {
 196         struct nouveau_display *disp = nouveau_display(dev);
 197         struct drm_crtc *crtc;
 198         int ret;
 199
 200         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 201                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 202                 ret = nvif_notify_init(&disp->disp,
 203                                        nouveau_display_vblank_handler, false,
 204                                        NV04_DISP_NTFY_VBLANK,
 205                                        &(struct nvif_notify_head_req_v0) {
 206                                         .head = nv_crtc->index,
 207                                        },
 208                                        sizeof(struct nvif_notify_head_req_v0),
 209                                        sizeof(struct nvif_notify_head_rep_v0),
 210                                        &nv_crtc->vblank);
 211                 if (ret) {
 212                         nouveau_display_vblank_fini(dev);
 213                         return ret;
 214                 }
 215         }
 216
 217         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 218         if (ret) {
 219                 nouveau_display_vblank_fini(dev);
 220                 return ret;
 221         }
 222
 223         return 0;
 224 }
 225
 226 static void
 227 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 228 {
 229         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 230
 231         if (fb->nvbo)
 232                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 233
 234         drm_framebuffer_cleanup(drm_fb);
 235         kfree(fb);
 236 }
 237
 238 static int
 239 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 240                                        struct drm_file *file_priv,
 241                                        unsigned int *handle)
 242 {
 243         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 244
 245         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 246 }
 247
 248 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 249         .destroy = nouveau_user_framebuffer_destroy,
 250         .create_handle = nouveau_user_framebuffer_create_handle,
 251 };
 252
 253 int
 254 nouveau_framebuffer_new(struct drm_device *dev,
 255                         const struct drm_mode_fb_cmd2 *mode_cmd,
 256                         struct nouveau_bo *nvbo,
 257                         struct nouveau_framebuffer **pfb)
 258 {
 259         struct nouveau_framebuffer *fb;
 260         int ret;
 261
 262         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 263                 return -ENOMEM;
 264
 265         drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
 266         fb->nvbo = nvbo;
 267
 268         ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
 269         if (ret)
 270                 kfree(fb);
 271         return ret;
 272 }
 273
 274 struct drm_framebuffer *
 275 nouveau_user_framebuffer_create(struct drm_device *dev,
 276                                 struct drm_file *file_priv,
 277                                 const struct drm_mode_fb_cmd2 *mode_cmd)
 278 {
 279         struct nouveau_framebuffer *fb;
 280         struct nouveau_bo *nvbo;
 281         struct drm_gem_object *gem;
 282         int ret;
 283
 284         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 285         if (!gem)
 286                 return ERR_PTR(-ENOENT);
 287         nvbo = nouveau_gem_object(gem);
 288
 289         ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
 290         if (ret == 0)
 291                 return &fb->base;
 292
 293         drm_gem_object_unreference_unlocked(gem);
 294         return ERR_PTR(ret);
 295 }
 296
 297 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 298         .fb_create = nouveau_user_framebuffer_create,
 299         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 300 };
 301
 302
 303 struct nouveau_drm_prop_enum_list {
 304         u8 gen_mask;
 305         int type;
 306         char *name;
 307 };
 308
 309 static struct nouveau_drm_prop_enum_list underscan[] = {
 310         { 6, UNDERSCAN_AUTO, "auto" },
 311         { 6, UNDERSCAN_OFF, "off" },
 312         { 6, UNDERSCAN_ON, "on" },
 313         {}
 314 };
 315
 316 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 317         { 7, DITHERING_MODE_AUTO, "auto" },
 318         { 7, DITHERING_MODE_OFF, "off" },
 319         { 1, DITHERING_MODE_ON, "on" },
 320         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 321         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 322         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 323         {}
 324 };
 325
 326 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 327         { 6, DITHERING_DEPTH_AUTO, "auto" },
 328         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 329         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 330         {}
 331 };
 332
 333 #define PROP_ENUM(p,gen,n,list) do {                                           \
 334         struct nouveau_drm_prop_enum_list *l = (list);                         \
 335         int c = 0;                                                             \
 336         while (l->gen_mask) {                                                  \
 337                 if (l->gen_mask & (1 << (gen)))                                \
 338                         c++;                                                   \
 339                 l++;                                                           \
 340         }                                                                      \
 341         if (c) {                                                               \
 342                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 343                 l = (list);                                                    \
 344                 c = 0;                                                         \
 345                 while (p && l->gen_mask) {                                     \
 346                         if (l->gen_mask & (1 << (gen))) {                      \
 347                                 drm_property_add_enum(p, c, l->type, l->name); \
 348                                 c++;                                           \
 349                         }                                                      \
 350                         l++;                                                   \
 351                 }                                                              \
 352         }                                                                      \
 353 } while(0)
 354
 355 static void
 356 nouveau_display_hpd_work(struct work_struct *work)
 357 {
 358         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 359
 360         pm_runtime_get_sync(drm->dev->dev);
 361
 362         drm_helper_hpd_irq_event(drm->dev);
 363
 364         pm_runtime_mark_last_busy(drm->dev->dev);
 365         pm_runtime_put_sync(drm->dev->dev);
 366 }
 367
 368 #ifdef CONFIG_ACPI
 369
 370 /*
 371  * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
 372  * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
 373  * This should be dropped once that is merged.
 374  */
 375 #ifndef ACPI_VIDEO_NOTIFY_PROBE
 376 #define ACPI_VIDEO_NOTIFY_PROBE                 0x81
 377 #endif
 378
 379 static int
 380 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 381                           void *data)
 382 {
 383         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 384         struct acpi_bus_event *info = data;
 385
 386         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 387                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 388                         /*
 389                          * This may be the only indication we receive of a
 390                          * connector hotplug on a runtime suspended GPU,
 391                          * schedule hpd_work to check.
 392                          */
 393                         schedule_work(&drm->hpd_work);
 394
 395                         /* acpi-video should not generate keypresses for this */
 396                         return NOTIFY_BAD;
 397                 }
 398         }
 399
 400         return NOTIFY_DONE;
 401 }
 402 #endif
 403
 404 int
 405 nouveau_display_init(struct drm_device *dev)
 406 {
 407         struct nouveau_display *disp = nouveau_display(dev);
 408         struct nouveau_drm *drm = nouveau_drm(dev);
 409         struct drm_connector *connector;
 410         int ret;
 411
 412         ret = disp->init(dev);
 413         if (ret)
 414                 return ret;
 415
 416         /* enable polling for external displays */
 417         if (!dev->mode_config.poll_enabled)
 418                 drm_kms_helper_poll_enable(dev);
 419
 420         /* enable hotplug interrupts */
 421         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 422                 struct nouveau_connector *conn = nouveau_connector(connector);
 423                 nvif_notify_get(&conn->hpd);
 424         }
 425
 426         /* enable flip completion events */
 427         nvif_notify_get(&drm->flip);
 428         return ret;
 429 }
 430
 431 void
 432 nouveau_display_fini(struct drm_device *dev, bool suspend)
 433 {
 434         struct nouveau_display *disp = nouveau_display(dev);
 435         struct nouveau_drm *drm = nouveau_drm(dev);
 436         struct drm_connector *connector;
 437         struct drm_crtc *crtc;
 438
 439         if (!suspend)
 440                 drm_crtc_force_disable_all(dev);
 441
 442         /* Make sure that drm and hw vblank irqs get properly disabled. */
 443         drm_for_each_crtc(crtc, dev)
 444                 drm_crtc_vblank_off(crtc);
 445
 446         /* disable flip completion events */
 447         nvif_notify_put(&drm->flip);
 448
 449         /* disable hotplug interrupts */
 450         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 451                 struct nouveau_connector *conn = nouveau_connector(connector);
 452                 nvif_notify_put(&conn->hpd);
 453         }
 454
 455         drm_kms_helper_poll_disable(dev);
 456         disp->fini(dev);
 457 }
 458
 459 static void
 460 nouveau_display_create_properties(struct drm_device *dev)
 461 {
 462         struct nouveau_display *disp = nouveau_display(dev);
 463         int gen;
 464
 465         if (disp->disp.oclass < NV50_DISP)
 466                 gen = 0;
 467         else
 468         if (disp->disp.oclass < GF110_DISP)
 469                 gen = 1;
 470         else
 471                 gen = 2;
 472
 473         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 474         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 475         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 476
 477         disp->underscan_hborder_property =
 478                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 479
 480         disp->underscan_vborder_property =
 481                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 482
 483         if (gen < 1)
 484                 return;
 485
 486         /* -90..+90 */
 487         disp->vibrant_hue_property =
 488                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 489
 490         /* -100..+100 */
 491         disp->color_vibrance_property =
 492                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 493 }
 494
 495 int
 496 nouveau_display_create(struct drm_device *dev)
 497 {
 498         struct nouveau_drm *drm = nouveau_drm(dev);
 499         struct nvkm_device *device = nvxx_device(&drm->client.device);
 500         struct nouveau_display *disp;
 501         int ret;
 502
 503         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 504         if (!disp)
 505                 return -ENOMEM;
 506
 507         drm_mode_config_init(dev);
 508         drm_mode_create_scaling_mode_property(dev);
 509         drm_mode_create_dvi_i_properties(dev);
 510
 511         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 512         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 513
 514         dev->mode_config.min_width = 0;
 515         dev->mode_config.min_height = 0;
 516         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 517                 dev->mode_config.max_width = 2048;
 518                 dev->mode_config.max_height = 2048;
 519         } else
 520         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 521                 dev->mode_config.max_width = 4096;
 522                 dev->mode_config.max_height = 4096;
 523         } else
 524         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 525                 dev->mode_config.max_width = 8192;
 526                 dev->mode_config.max_height = 8192;
 527         } else {
 528                 dev->mode_config.max_width = 16384;
 529                 dev->mode_config.max_height = 16384;
 530         }
 531
 532         dev->mode_config.preferred_depth = 24;
 533         dev->mode_config.prefer_shadow = 1;
 534
 535         if (drm->client.device.info.chipset < 0x11)
 536                 dev->mode_config.async_page_flip = false;
 537         else
 538                 dev->mode_config.async_page_flip = true;
 539
 540         drm_kms_helper_poll_init(dev);
 541         drm_kms_helper_poll_disable(dev);
 542
 543         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 544                 static const u16 oclass[] = {
 545                         GP102_DISP,
 546                         GP100_DISP,
 547                         GM200_DISP,
 548                         GM107_DISP,
 549                         GK110_DISP,
 550                         GK104_DISP,
 551                         GF110_DISP,
 552                         GT214_DISP,
 553                         GT206_DISP,
 554                         GT200_DISP,
 555                         G82_DISP,
 556                         NV50_DISP,
 557                         NV04_DISP,
 558                 };
 559                 int i;
 560
 561                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 562                         ret = nvif_object_init(&drm->client.device.object, 0,
 563                                                oclass[i], NULL, 0, &disp->disp);
 564                 }
 565
 566                 if (ret == 0) {
 567                         nouveau_display_create_properties(dev);
 568                         if (disp->disp.oclass < NV50_DISP)
 569                                 ret = nv04_display_create(dev);
 570                         else
 571                                 ret = nv50_display_create(dev);
 572                 }
 573         } else {
 574                 ret = 0;
 575         }
 576
 577         if (ret)
 578                 goto disp_create_err;
 579
 580         drm_mode_config_reset(dev);
 581
 582         if (dev->mode_config.num_crtc) {
 583                 ret = nouveau_display_vblank_init(dev);
 584                 if (ret)
 585                         goto vblank_err;
 586         }
 587
 588         nouveau_backlight_init(dev);
 589         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 590 #ifdef CONFIG_ACPI
 591         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 592         register_acpi_notifier(&drm->acpi_nb);
 593 #endif
 594
 595         return 0;
 596
 597 vblank_err:
 598         disp->dtor(dev);
 599 disp_create_err:
 600         drm_kms_helper_poll_fini(dev);
 601         drm_mode_config_cleanup(dev);
 602         return ret;
 603 }
 604
 605 void
 606 nouveau_display_destroy(struct drm_device *dev)
 607 {
 608         struct nouveau_display *disp = nouveau_display(dev);
 609
 610 #ifdef CONFIG_ACPI
 611         unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
 612 #endif
 613         nouveau_backlight_exit(dev);
 614         nouveau_display_vblank_fini(dev);
 615
 616         drm_kms_helper_poll_fini(dev);
 617         drm_mode_config_cleanup(dev);
 618
 619         if (disp->dtor)
 620                 disp->dtor(dev);
 621
 622         nvif_object_fini(&disp->disp);
 623
 624         nouveau_drm(dev)->display = NULL;
 625         kfree(disp);
 626 }
 627
 628 static int
 629 nouveau_atomic_disable_connector(struct drm_atomic_state *state,
 630                                  struct drm_connector *connector)
 631 {
 632         struct drm_connector_state *connector_state;
 633         struct drm_crtc *crtc;
 634         struct drm_crtc_state *crtc_state;
 635         struct drm_plane_state *plane_state;
 636         struct drm_plane *plane;
 637         int ret;
 638
 639         if (!(crtc = connector->state->crtc))
 640                 return 0;
 641
 642         connector_state = drm_atomic_get_connector_state(state, connector);
 643         if (IS_ERR(connector_state))
 644                 return PTR_ERR(connector_state);
 645
 646         ret = drm_atomic_set_crtc_for_connector(connector_state, NULL);
 647         if (ret)
 648                 return ret;
 649
 650         crtc_state = drm_atomic_get_crtc_state(state, crtc);
 651         if (IS_ERR(crtc_state))
 652                 return PTR_ERR(crtc_state);
 653
 654         ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
 655         if (ret)
 656                 return ret;
 657
 658         crtc_state->active = false;
 659
 660         drm_for_each_plane_mask(plane, connector->dev, crtc_state->plane_mask) {
 661                 plane_state = drm_atomic_get_plane_state(state, plane);
 662                 if (IS_ERR(plane_state))
 663                         return PTR_ERR(plane_state);
 664
 665                 ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
 666                 if (ret)
 667                         return ret;
 668
 669                 drm_atomic_set_fb_for_plane(plane_state, NULL);
 670         }
 671
 672         return 0;
 673 }
 674
 675 static int
 676 nouveau_atomic_disable(struct drm_device *dev,
 677                        struct drm_modeset_acquire_ctx *ctx)
 678 {
 679         struct drm_atomic_state *state;
 680         struct drm_connector *connector;
 681         int ret;
 682
 683         state = drm_atomic_state_alloc(dev);
 684         if (!state)
 685                 return -ENOMEM;
 686
 687         state->acquire_ctx = ctx;
 688
 689         drm_for_each_connector(connector, dev) {
 690                 ret = nouveau_atomic_disable_connector(state, connector);
 691                 if (ret)
 692                         break;
 693         }
 694
 695         if (ret == 0)
 696                 ret = drm_atomic_commit(state);
 697         drm_atomic_state_put(state);
 698         return ret;
 699 }
 700
 701 static struct drm_atomic_state *
 702 nouveau_atomic_suspend(struct drm_device *dev)
 703 {
 704         struct drm_modeset_acquire_ctx ctx;
 705         struct drm_atomic_state *state;
 706         int ret;
 707
 708         drm_modeset_acquire_init(&ctx, 0);
 709
 710 retry:
 711         ret = drm_modeset_lock_all_ctx(dev, &ctx);
 712         if (ret < 0) {
 713                 state = ERR_PTR(ret);
 714                 goto unlock;
 715         }
 716
 717         state = drm_atomic_helper_duplicate_state(dev, &ctx);
 718         if (IS_ERR(state))
 719                 goto unlock;
 720
 721         ret = nouveau_atomic_disable(dev, &ctx);
 722         if (ret < 0) {
 723                 drm_atomic_state_put(state);
 724                 state = ERR_PTR(ret);
 725                 goto unlock;
 726         }
 727
 728 unlock:
 729         if (PTR_ERR(state) == -EDEADLK) {
 730                 drm_modeset_backoff(&ctx);
 731                 goto retry;
 732         }
 733
 734         drm_modeset_drop_locks(&ctx);
 735         drm_modeset_acquire_fini(&ctx);
 736         return state;
 737 }
 738
 739 int
 740 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 741 {
 742         struct nouveau_display *disp = nouveau_display(dev);
 743         struct drm_crtc *crtc;
 744
 745         if (drm_drv_uses_atomic_modeset(dev)) {
 746                 if (!runtime) {
 747                         disp->suspend = nouveau_atomic_suspend(dev);
 748                         if (IS_ERR(disp->suspend)) {
 749                                 int ret = PTR_ERR(disp->suspend);
 750                                 disp->suspend = NULL;
 751                                 return ret;
 752                         }
 753                 }
 754
 755                 nouveau_display_fini(dev, true);
 756                 return 0;
 757         }
 758
 759         nouveau_display_fini(dev, true);
 760
 761         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 762                 struct nouveau_framebuffer *nouveau_fb;
 763
 764                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 765                 if (!nouveau_fb || !nouveau_fb->nvbo)
 766                         continue;
 767
 768                 nouveau_bo_unpin(nouveau_fb->nvbo);
 769         }
 770
 771         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 772                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 773                 if (nv_crtc->cursor.nvbo) {
 774                         if (nv_crtc->cursor.set_offset)
 775                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 776                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 777                 }
 778         }
 779
 780         return 0;
 781 }
 782
 783 void
 784 nouveau_display_resume(struct drm_device *dev, bool runtime)
 785 {
 786         struct nouveau_display *disp = nouveau_display(dev);
 787         struct nouveau_drm *drm = nouveau_drm(dev);
 788         struct drm_crtc *crtc;
 789         int ret;
 790
 791         if (drm_drv_uses_atomic_modeset(dev)) {
 792                 nouveau_display_init(dev);
 793                 if (disp->suspend) {
 794                         drm_atomic_helper_resume(dev, disp->suspend);
 795                         disp->suspend = NULL;
 796                 }
 797                 return;
 798         }
 799
 800         /* re-pin fb/cursors */
 801         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 802                 struct nouveau_framebuffer *nouveau_fb;
 803
 804                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 805                 if (!nouveau_fb || !nouveau_fb->nvbo)
 806                         continue;
 807
 808                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 809                 if (ret)
 810                         NV_ERROR(drm, "Could not pin framebuffer\n");
 811         }
 812
 813         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 814                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 815                 if (!nv_crtc->cursor.nvbo)
 816                         continue;
 817
 818                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 819                 if (!ret && nv_crtc->cursor.set_offset)
 820                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 821                 if (ret)
 822                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 823         }
 824
 825         nouveau_display_init(dev);
 826
 827         /* Force CLUT to get re-loaded during modeset */
 828         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 829                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 830
 831                 nv_crtc->lut.depth = 0;
 832         }
 833
 834         /* This should ensure we don't hit a locking problem when someone
 835          * wakes us up via a connector.  We should never go into suspend
 836          * while the display is on anyways.
 837          */
 838         if (runtime)
 839                 return;
 840
 841         drm_helper_resume_force_mode(dev);
 842
 843         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 844                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 845
 846                 if (!nv_crtc->cursor.nvbo)
 847                         continue;
 848
 849                 if (nv_crtc->cursor.set_offset)
 850                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 851                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 852                                                  nv_crtc->cursor_saved_y);
 853         }
 854 }
 855
 856 static int
 857 nouveau_page_flip_emit(struct nouveau_channel *chan,
 858                        struct nouveau_bo *old_bo,
 859                        struct nouveau_bo *new_bo,
 860                        struct nouveau_page_flip_state *s,
 861                        struct nouveau_fence **pfence)
 862 {
 863         struct nouveau_fence_chan *fctx = chan->fence;
 864         struct nouveau_drm *drm = chan->drm;
 865         struct drm_device *dev = drm->dev;
 866         unsigned long flags;
 867         int ret;
 868
 869         /* Queue it to the pending list */
 870         spin_lock_irqsave(&dev->event_lock, flags);
 871         list_add_tail(&s->head, &fctx->flip);
 872         spin_unlock_irqrestore(&dev->event_lock, flags);
 873
 874         /* Synchronize with the old framebuffer */
 875         ret = nouveau_fence_sync(old_bo, chan, false, false);
 876         if (ret)
 877                 goto fail;
 878
 879         /* Emit the pageflip */
 880         ret = RING_SPACE(chan, 2);
 881         if (ret)
 882                 goto fail;
 883
 884         BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 885         OUT_RING  (chan, 0x00000000);
 886         FIRE_RING (chan);
 887
 888         ret = nouveau_fence_new(chan, false, pfence);
 889         if (ret)
 890                 goto fail;
 891
 892         return 0;
 893 fail:
 894         spin_lock_irqsave(&dev->event_lock, flags);
 895         list_del(&s->head);
 896         spin_unlock_irqrestore(&dev->event_lock, flags);
 897         return ret;
 898 }
 899
 900 int
 901 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 902                        struct drm_pending_vblank_event *event, u32 flags)
 903 {
 904         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 905         struct drm_device *dev = crtc->dev;
 906         struct nouveau_drm *drm = nouveau_drm(dev);
 907         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 908         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 909         struct nouveau_page_flip_state *s;
 910         struct nouveau_channel *chan;
 911         struct nouveau_cli *cli;
 912         struct nouveau_fence *fence;
 913         struct nv04_display *dispnv04 = nv04_display(dev);
 914         int head = nouveau_crtc(crtc)->index;
 915         int ret;
 916
 917         chan = drm->channel;
 918         if (!chan)
 919                 return -ENODEV;
 920         cli = (void *)chan->user.client;
 921
 922         s = kzalloc(sizeof(*s), GFP_KERNEL);
 923         if (!s)
 924                 return -ENOMEM;
 925
 926         if (new_bo != old_bo) {
 927                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 928                 if (ret)
 929                         goto fail_free;
 930         }
 931
 932         mutex_lock(&cli->mutex);
 933         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
 934         if (ret)
 935                 goto fail_unpin;
 936
 937         /* synchronise rendering channel with the kernel's channel */
 938         ret = nouveau_fence_sync(new_bo, chan, false, true);
 939         if (ret) {
 940                 ttm_bo_unreserve(&new_bo->bo);
 941                 goto fail_unpin;
 942         }
 943
 944         if (new_bo != old_bo) {
 945                 ttm_bo_unreserve(&new_bo->bo);
 946
 947                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
 948                 if (ret)
 949                         goto fail_unpin;
 950         }
 951
 952         /* Initialize a page flip struct */
 953         *s = (struct nouveau_page_flip_state)
 954                 { { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
 955                   new_bo->bo.offset };
 956
 957         /* Keep vblanks on during flip, for the target crtc of this flip */
 958         drm_crtc_vblank_get(crtc);
 959
 960         /* Emit a page flip */
 961         if (swap_interval) {
 962                 ret = RING_SPACE(chan, 8);
 963                 if (ret)
 964                         goto fail_unreserve;
 965
 966                 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 967                 OUT_RING  (chan, 0);
 968                 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 969                 OUT_RING  (chan, head);
 970                 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 971                 OUT_RING  (chan, 0);
 972                 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 973                 OUT_RING  (chan, 0);
 974         }
 975
 976         nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 977
 978         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 979         if (ret)
 980                 goto fail_unreserve;
 981         mutex_unlock(&cli->mutex);
 982
 983         /* Update the crtc struct and cleanup */
 984         crtc->primary->fb = fb;
 985
 986         nouveau_bo_fence(old_bo, fence, false);
 987         ttm_bo_unreserve(&old_bo->bo);
 988         if (old_bo != new_bo)
 989                 nouveau_bo_unpin(old_bo);
 990         nouveau_fence_unref(&fence);
 991         return 0;
 992
 993 fail_unreserve:
 994         drm_crtc_vblank_put(crtc);
 995         ttm_bo_unreserve(&old_bo->bo);
 996 fail_unpin:
 997         mutex_unlock(&cli->mutex);
 998         if (old_bo != new_bo)
 999                 nouveau_bo_unpin(new_bo);
1000 fail_free:
1001         kfree(s);
1002         return ret;
1003 }
1004
1005 int
1006 nouveau_finish_page_flip(struct nouveau_channel *chan,
1007                          struct nouveau_page_flip_state *ps)
1008 {
1009         struct nouveau_fence_chan *fctx = chan->fence;
1010         struct nouveau_drm *drm = chan->drm;
1011         struct drm_device *dev = drm->dev;
1012         struct nouveau_page_flip_state *s;
1013         unsigned long flags;
1014
1015         spin_lock_irqsave(&dev->event_lock, flags);
1016
1017         if (list_empty(&fctx->flip)) {
1018                 NV_ERROR(drm, "unexpected pageflip\n");
1019                 spin_unlock_irqrestore(&dev->event_lock, flags);
1020                 return -EINVAL;
1021         }
1022
1023         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
1024         if (s->event) {
1025                 drm_crtc_arm_vblank_event(s->crtc, s->event);
1026         } else {
1027                 /* Give up ownership of vblank for page-flipped crtc */
1028                 drm_crtc_vblank_put(s->crtc);
1029         }
1030
1031         list_del(&s->head);
1032         if (ps)
1033                 *ps = *s;
1034         kfree(s);
1035
1036         spin_unlock_irqrestore(&dev->event_lock, flags);
1037         return 0;
1038 }
1039
1040 int
1041 nouveau_flip_complete(struct nvif_notify *notify)
1042 {
1043         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
1044         struct nouveau_channel *chan = drm->channel;
1045         struct nouveau_page_flip_state state;
1046
1047         if (!nouveau_finish_page_flip(chan, &state)) {
1048                 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
1049                                  state.offset + state.crtc->y *
1050                                  state.pitch + state.crtc->x *
1051                                  state.bpp / 8);
1052         }
1053
1054         return NVIF_NOTIFY_KEEP;
1055 }
1056
1057 int
1058 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
1059                             struct drm_mode_create_dumb *args)
1060 {
1061         struct nouveau_cli *cli = nouveau_cli(file_priv);
1062         struct nouveau_bo *bo;
1063         uint32_t domain;
1064         int ret;
1065
1066         args->pitch = roundup(args->width * (args->bpp / 8), 256);
1067         args->size = args->pitch * args->height;
1068         args->size = roundup(args->size, PAGE_SIZE);
1069
1070         /* Use VRAM if there is any ; otherwise fallback to system memory */
1071         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
1072                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
1073         else
1074                 domain = NOUVEAU_GEM_DOMAIN_GART;
1075
1076         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
1077         if (ret)
1078                 return ret;
1079
1080         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
1081         drm_gem_object_unreference_unlocked(&bo->gem);
1082         return ret;
1083 }
1084
1085 int
1086 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
1087                                 struct drm_device *dev,
1088                                 uint32_t handle, uint64_t *poffset)
1089 {
1090         struct drm_gem_object *gem;
1091
1092         gem = drm_gem_object_lookup(file_priv, handle);
1093         if (gem) {
1094                 struct nouveau_bo *bo = nouveau_gem_object(gem);
1095                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
1096                 drm_gem_object_unreference_unlocked(gem);
1097                 return 0;
1098         }
1099
1100         return -ENOENT;
1101 }