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 #include <drm/drm_fb_helper.h>
  33
  34 #include <nvif/class.h>
  35
  36 #include "nouveau_fbcon.h"
  37 #include "dispnv04/hw.h"
  38 #include "nouveau_crtc.h"
  39 #include "nouveau_dma.h"
  40 #include "nouveau_gem.h"
  41 #include "nouveau_connector.h"
  42 #include "nv50_display.h"
  43
  44 #include "nouveau_fence.h"
  45
  46 #include <nvif/cl0046.h>
  47 #include <nvif/event.h>
  48
  49 static int
  50 nouveau_display_vblank_handler(struct nvif_notify *notify)
  51 {
  52         struct nouveau_crtc *nv_crtc =
  53                 container_of(notify, typeof(*nv_crtc), vblank);
  54         drm_crtc_handle_vblank(&nv_crtc->base);
  55         return NVIF_NOTIFY_KEEP;
  56 }
  57
  58 int
  59 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
  60 {
  61         struct drm_crtc *crtc;
  62         struct nouveau_crtc *nv_crtc;
  63
  64         crtc = drm_crtc_from_index(dev, pipe);
  65         if (!crtc)
  66                 return -EINVAL;
  67
  68         nv_crtc = nouveau_crtc(crtc);
  69         nvif_notify_get(&nv_crtc->vblank);
  70
  71         return 0;
  72 }
  73
  74 void
  75 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
  76 {
  77         struct drm_crtc *crtc;
  78         struct nouveau_crtc *nv_crtc;
  79
  80         crtc = drm_crtc_from_index(dev, pipe);
  81         if (!crtc)
  82                 return;
  83
  84         nv_crtc = nouveau_crtc(crtc);
  85         nvif_notify_put(&nv_crtc->vblank);
  86 }
  87
  88 static inline int
  89 calc(int blanks, int blanke, int total, int line)
  90 {
  91         if (blanke >= blanks) {
  92                 if (line >= blanks)
  93                         line -= total;
  94         } else {
  95                 if (line >= blanks)
  96                         line -= total;
  97                 line -= blanke + 1;
  98         }
  99         return line;
 100 }
 101
 102 static bool
 103 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
 104                                 ktime_t *stime, ktime_t *etime)
 105 {
 106         struct {
 107                 struct nv04_disp_mthd_v0 base;
 108                 struct nv04_disp_scanoutpos_v0 scan;
 109         } args = {
 110                 .base.method = NV04_DISP_SCANOUTPOS,
 111                 .base.head = nouveau_crtc(crtc)->index,
 112         };
 113         struct nouveau_display *disp = nouveau_display(crtc->dev);
 114         struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
 115         int retry = 20;
 116         bool ret = false;
 117
 118         do {
 119                 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
 120                 if (ret != 0)
 121                         return false;
 122
 123                 if (args.scan.vline) {
 124                         ret = true;
 125                         break;
 126                 }
 127
 128                 if (retry) ndelay(vblank->linedur_ns);
 129         } while (retry--);
 130
 131         *hpos = args.scan.hline;
 132         *vpos = calc(args.scan.vblanks, args.scan.vblanke,
 133                      args.scan.vtotal, args.scan.vline);
 134         if (stime) *stime = ns_to_ktime(args.scan.time[0]);
 135         if (etime) *etime = ns_to_ktime(args.scan.time[1]);
 136
 137         return ret;
 138 }
 139
 140 bool
 141 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
 142                            bool in_vblank_irq, int *vpos, int *hpos,
 143                            ktime_t *stime, ktime_t *etime,
 144                            const struct drm_display_mode *mode)
 145 {
 146         struct drm_crtc *crtc;
 147
 148         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 149                 if (nouveau_crtc(crtc)->index == pipe) {
 150                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 151                                                                stime, etime);
 152                 }
 153         }
 154
 155         return false;
 156 }
 157
 158 static void
 159 nouveau_display_vblank_fini(struct drm_device *dev)
 160 {
 161         struct drm_crtc *crtc;
 162
 163         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 164                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 165                 nvif_notify_fini(&nv_crtc->vblank);
 166         }
 167 }
 168
 169 static int
 170 nouveau_display_vblank_init(struct drm_device *dev)
 171 {
 172         struct nouveau_display *disp = nouveau_display(dev);
 173         struct drm_crtc *crtc;
 174         int ret;
 175
 176         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 177                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 178                 ret = nvif_notify_init(&disp->disp,
 179                                        nouveau_display_vblank_handler, false,
 180                                        NV04_DISP_NTFY_VBLANK,
 181                                        &(struct nvif_notify_head_req_v0) {
 182                                         .head = nv_crtc->index,
 183                                        },
 184                                        sizeof(struct nvif_notify_head_req_v0),
 185                                        sizeof(struct nvif_notify_head_rep_v0),
 186                                        &nv_crtc->vblank);
 187                 if (ret) {
 188                         nouveau_display_vblank_fini(dev);
 189                         return ret;
 190                 }
 191         }
 192
 193         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 194         if (ret) {
 195                 nouveau_display_vblank_fini(dev);
 196                 return ret;
 197         }
 198
 199         return 0;
 200 }
 201
 202 static void
 203 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 204 {
 205         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 206
 207         if (fb->nvbo)
 208                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 209
 210         drm_framebuffer_cleanup(drm_fb);
 211         kfree(fb);
 212 }
 213
 214 static int
 215 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 216                                        struct drm_file *file_priv,
 217                                        unsigned int *handle)
 218 {
 219         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 220
 221         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 222 }
 223
 224 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 225         .destroy = nouveau_user_framebuffer_destroy,
 226         .create_handle = nouveau_user_framebuffer_create_handle,
 227 };
 228
 229 int
 230 nouveau_framebuffer_new(struct drm_device *dev,
 231                         const struct drm_mode_fb_cmd2 *mode_cmd,
 232                         struct nouveau_bo *nvbo,
 233                         struct nouveau_framebuffer **pfb)
 234 {
 235         struct nouveau_drm *drm = nouveau_drm(dev);
 236         struct nouveau_framebuffer *fb;
 237         int ret;
 238
 239         /* YUV overlays have special requirements pre-NV50 */
 240         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
 241
 242             (mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
 243              mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
 244              mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
 245              mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
 246             (mode_cmd->pitches[0] & 0x3f || /* align 64 */
 247              mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
 248              (mode_cmd->pitches[1] && /* pitches for planes must match */
 249               mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
 250                 struct drm_format_name_buf format_name;
 251                 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n",
 252                               drm_get_format_name(mode_cmd->pixel_format,
 253                                                   &format_name),
 254                               mode_cmd->pitches[0],
 255                               mode_cmd->pitches[1]);
 256                 return -EINVAL;
 257         }
 258
 259         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 260                 return -ENOMEM;
 261
 262         drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
 263         fb->nvbo = nvbo;
 264
 265         ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
 266         if (ret)
 267                 kfree(fb);
 268         return ret;
 269 }
 270
 271 struct drm_framebuffer *
 272 nouveau_user_framebuffer_create(struct drm_device *dev,
 273                                 struct drm_file *file_priv,
 274                                 const struct drm_mode_fb_cmd2 *mode_cmd)
 275 {
 276         struct nouveau_framebuffer *fb;
 277         struct nouveau_bo *nvbo;
 278         struct drm_gem_object *gem;
 279         int ret;
 280
 281         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 282         if (!gem)
 283                 return ERR_PTR(-ENOENT);
 284         nvbo = nouveau_gem_object(gem);
 285
 286         ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
 287         if (ret == 0)
 288                 return &fb->base;
 289
 290         drm_gem_object_unreference_unlocked(gem);
 291         return ERR_PTR(ret);
 292 }
 293
 294 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 295         .fb_create = nouveau_user_framebuffer_create,
 296         .output_poll_changed = drm_fb_helper_output_poll_changed,
 297 };
 298
 299
 300 struct nouveau_drm_prop_enum_list {
 301         u8 gen_mask;
 302         int type;
 303         char *name;
 304 };
 305
 306 static struct nouveau_drm_prop_enum_list underscan[] = {
 307         { 6, UNDERSCAN_AUTO, "auto" },
 308         { 6, UNDERSCAN_OFF, "off" },
 309         { 6, UNDERSCAN_ON, "on" },
 310         {}
 311 };
 312
 313 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 314         { 7, DITHERING_MODE_AUTO, "auto" },
 315         { 7, DITHERING_MODE_OFF, "off" },
 316         { 1, DITHERING_MODE_ON, "on" },
 317         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 318         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 319         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 320         {}
 321 };
 322
 323 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 324         { 6, DITHERING_DEPTH_AUTO, "auto" },
 325         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 326         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 327         {}
 328 };
 329
 330 #define PROP_ENUM(p,gen,n,list) do {                                           \
 331         struct nouveau_drm_prop_enum_list *l = (list);                         \
 332         int c = 0;                                                             \
 333         while (l->gen_mask) {                                                  \
 334                 if (l->gen_mask & (1 << (gen)))                                \
 335                         c++;                                                   \
 336                 l++;                                                           \
 337         }                                                                      \
 338         if (c) {                                                               \
 339                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 340                 l = (list);                                                    \
 341                 c = 0;                                                         \
 342                 while (p && l->gen_mask) {                                     \
 343                         if (l->gen_mask & (1 << (gen))) {                      \
 344                                 drm_property_add_enum(p, c, l->type, l->name); \
 345                                 c++;                                           \
 346                         }                                                      \
 347                         l++;                                                   \
 348                 }                                                              \
 349         }                                                                      \
 350 } while(0)
 351
 352 static void
 353 nouveau_display_hpd_work(struct work_struct *work)
 354 {
 355         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 356
 357         pm_runtime_get_sync(drm->dev->dev);
 358
 359         drm_helper_hpd_irq_event(drm->dev);
 360         /* enable polling for external displays */
 361         drm_kms_helper_poll_enable(drm->dev);
 362
 363         pm_runtime_mark_last_busy(drm->dev->dev);
 364         pm_runtime_put_sync(drm->dev->dev);
 365 }
 366
 367 #ifdef CONFIG_ACPI
 368
 369 /*
 370  * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
 371  * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
 372  * This should be dropped once that is merged.
 373  */
 374 #ifndef ACPI_VIDEO_NOTIFY_PROBE
 375 #define ACPI_VIDEO_NOTIFY_PROBE                 0x81
 376 #endif
 377
 378 static int
 379 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 380                           void *data)
 381 {
 382         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 383         struct acpi_bus_event *info = data;
 384
 385         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 386                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 387                         /*
 388                          * This may be the only indication we receive of a
 389                          * connector hotplug on a runtime suspended GPU,
 390                          * schedule hpd_work to check.
 391                          */
 392                         schedule_work(&drm->hpd_work);
 393
 394                         /* acpi-video should not generate keypresses for this */
 395                         return NOTIFY_BAD;
 396                 }
 397         }
 398
 399         return NOTIFY_DONE;
 400 }
 401 #endif
 402
 403 int
 404 nouveau_display_init(struct drm_device *dev)
 405 {
 406         struct nouveau_display *disp = nouveau_display(dev);
 407         struct nouveau_drm *drm = nouveau_drm(dev);
 408         struct drm_connector *connector;
 409         int ret;
 410
 411         ret = disp->init(dev);
 412         if (ret)
 413                 return ret;
 414
 415         /* enable hotplug interrupts */
 416         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 417                 struct nouveau_connector *conn = nouveau_connector(connector);
 418                 nvif_notify_get(&conn->hpd);
 419         }
 420
 421         /* enable flip completion events */
 422         nvif_notify_get(&drm->flip);
 423         return ret;
 424 }
 425
 426 void
 427 nouveau_display_fini(struct drm_device *dev, bool suspend)
 428 {
 429         struct nouveau_display *disp = nouveau_display(dev);
 430         struct nouveau_drm *drm = nouveau_drm(dev);
 431         struct drm_connector *connector;
 432
 433         if (!suspend) {
 434                 if (drm_drv_uses_atomic_modeset(dev))
 435                         drm_atomic_helper_shutdown(dev);
 436                 else
 437                         drm_crtc_force_disable_all(dev);
 438         }
 439
 440         /* disable flip completion events */
 441         nvif_notify_put(&drm->flip);
 442
 443         /* disable hotplug interrupts */
 444         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 445                 struct nouveau_connector *conn = nouveau_connector(connector);
 446                 nvif_notify_put(&conn->hpd);
 447         }
 448
 449         drm_kms_helper_poll_disable(dev);
 450         disp->fini(dev);
 451 }
 452
 453 static void
 454 nouveau_display_create_properties(struct drm_device *dev)
 455 {
 456         struct nouveau_display *disp = nouveau_display(dev);
 457         int gen;
 458
 459         if (disp->disp.oclass < NV50_DISP)
 460                 gen = 0;
 461         else
 462         if (disp->disp.oclass < GF110_DISP)
 463                 gen = 1;
 464         else
 465                 gen = 2;
 466
 467         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 468         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 469         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 470
 471         disp->underscan_hborder_property =
 472                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 473
 474         disp->underscan_vborder_property =
 475                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 476
 477         if (gen < 1)
 478                 return;
 479
 480         /* -90..+90 */
 481         disp->vibrant_hue_property =
 482                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 483
 484         /* -100..+100 */
 485         disp->color_vibrance_property =
 486                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 487 }
 488
 489 int
 490 nouveau_display_create(struct drm_device *dev)
 491 {
 492         struct nouveau_drm *drm = nouveau_drm(dev);
 493         struct nvkm_device *device = nvxx_device(&drm->client.device);
 494         struct nouveau_display *disp;
 495         int ret;
 496
 497         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 498         if (!disp)
 499                 return -ENOMEM;
 500
 501         drm_mode_config_init(dev);
 502         drm_mode_create_scaling_mode_property(dev);
 503         drm_mode_create_dvi_i_properties(dev);
 504
 505         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 506         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 507
 508         dev->mode_config.min_width = 0;
 509         dev->mode_config.min_height = 0;
 510         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 511                 dev->mode_config.max_width = 2048;
 512                 dev->mode_config.max_height = 2048;
 513         } else
 514         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 515                 dev->mode_config.max_width = 4096;
 516                 dev->mode_config.max_height = 4096;
 517         } else
 518         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 519                 dev->mode_config.max_width = 8192;
 520                 dev->mode_config.max_height = 8192;
 521         } else {
 522                 dev->mode_config.max_width = 16384;
 523                 dev->mode_config.max_height = 16384;
 524         }
 525
 526         dev->mode_config.preferred_depth = 24;
 527         dev->mode_config.prefer_shadow = 1;
 528
 529         if (drm->client.device.info.chipset < 0x11)
 530                 dev->mode_config.async_page_flip = false;
 531         else
 532                 dev->mode_config.async_page_flip = true;
 533
 534         drm_kms_helper_poll_init(dev);
 535         drm_kms_helper_poll_disable(dev);
 536
 537         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 538                 static const u16 oclass[] = {
 539                         GP102_DISP,
 540                         GP100_DISP,
 541                         GM200_DISP,
 542                         GM107_DISP,
 543                         GK110_DISP,
 544                         GK104_DISP,
 545                         GF110_DISP,
 546                         GT214_DISP,
 547                         GT206_DISP,
 548                         GT200_DISP,
 549                         G82_DISP,
 550                         NV50_DISP,
 551                         NV04_DISP,
 552                 };
 553                 int i;
 554
 555                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 556                         ret = nvif_object_init(&drm->client.device.object, 0,
 557                                                oclass[i], NULL, 0, &disp->disp);
 558                 }
 559
 560                 if (ret == 0) {
 561                         nouveau_display_create_properties(dev);
 562                         if (disp->disp.oclass < NV50_DISP)
 563                                 ret = nv04_display_create(dev);
 564                         else
 565                                 ret = nv50_display_create(dev);
 566                 }
 567         } else {
 568                 ret = 0;
 569         }
 570
 571         if (ret)
 572                 goto disp_create_err;
 573
 574         drm_mode_config_reset(dev);
 575
 576         if (dev->mode_config.num_crtc) {
 577                 ret = nouveau_display_vblank_init(dev);
 578                 if (ret)
 579                         goto vblank_err;
 580         }
 581
 582         nouveau_backlight_init(dev);
 583         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 584 #ifdef CONFIG_ACPI
 585         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 586         register_acpi_notifier(&drm->acpi_nb);
 587 #endif
 588
 589         return 0;
 590
 591 vblank_err:
 592         disp->dtor(dev);
 593 disp_create_err:
 594         drm_kms_helper_poll_fini(dev);
 595         drm_mode_config_cleanup(dev);
 596         return ret;
 597 }
 598
 599 void
 600 nouveau_display_destroy(struct drm_device *dev)
 601 {
 602         struct nouveau_display *disp = nouveau_display(dev);
 603
 604 #ifdef CONFIG_ACPI
 605         unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
 606 #endif
 607         nouveau_backlight_exit(dev);
 608         nouveau_display_vblank_fini(dev);
 609
 610         drm_kms_helper_poll_fini(dev);
 611         drm_mode_config_cleanup(dev);
 612
 613         if (disp->dtor)
 614                 disp->dtor(dev);
 615
 616         nvif_object_fini(&disp->disp);
 617
 618         nouveau_drm(dev)->display = NULL;
 619         kfree(disp);
 620 }
 621
 622 int
 623 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 624 {
 625         struct nouveau_display *disp = nouveau_display(dev);
 626         struct drm_crtc *crtc;
 627
 628         if (drm_drv_uses_atomic_modeset(dev)) {
 629                 if (!runtime) {
 630                         disp->suspend = drm_atomic_helper_suspend(dev);
 631                         if (IS_ERR(disp->suspend)) {
 632                                 int ret = PTR_ERR(disp->suspend);
 633                                 disp->suspend = NULL;
 634                                 return ret;
 635                         }
 636                 }
 637
 638                 nouveau_display_fini(dev, true);
 639                 return 0;
 640         }
 641
 642         nouveau_display_fini(dev, true);
 643
 644         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 645                 struct nouveau_framebuffer *nouveau_fb;
 646
 647                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 648                 if (!nouveau_fb || !nouveau_fb->nvbo)
 649                         continue;
 650
 651                 nouveau_bo_unpin(nouveau_fb->nvbo);
 652         }
 653
 654         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 655                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 656                 if (nv_crtc->cursor.nvbo) {
 657                         if (nv_crtc->cursor.set_offset)
 658                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 659                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 660                 }
 661         }
 662
 663         return 0;
 664 }
 665
 666 void
 667 nouveau_display_resume(struct drm_device *dev, bool runtime)
 668 {
 669         struct nouveau_display *disp = nouveau_display(dev);
 670         struct nouveau_drm *drm = nouveau_drm(dev);
 671         struct drm_crtc *crtc;
 672         int ret;
 673
 674         if (drm_drv_uses_atomic_modeset(dev)) {
 675                 nouveau_display_init(dev);
 676                 if (disp->suspend) {
 677                         drm_atomic_helper_resume(dev, disp->suspend);
 678                         disp->suspend = NULL;
 679                 }
 680                 return;
 681         }
 682
 683         /* re-pin fb/cursors */
 684         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 685                 struct nouveau_framebuffer *nouveau_fb;
 686
 687                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 688                 if (!nouveau_fb || !nouveau_fb->nvbo)
 689                         continue;
 690
 691                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 692                 if (ret)
 693                         NV_ERROR(drm, "Could not pin framebuffer\n");
 694         }
 695
 696         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 697                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 698                 if (!nv_crtc->cursor.nvbo)
 699                         continue;
 700
 701                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 702                 if (!ret && nv_crtc->cursor.set_offset)
 703                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 704                 if (ret)
 705                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 706         }
 707
 708         nouveau_display_init(dev);
 709
 710         /* Force CLUT to get re-loaded during modeset */
 711         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 712                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 713
 714                 nv_crtc->lut.depth = 0;
 715         }
 716
 717         /* This should ensure we don't hit a locking problem when someone
 718          * wakes us up via a connector.  We should never go into suspend
 719          * while the display is on anyways.
 720          */
 721         if (runtime)
 722                 return;
 723
 724         drm_helper_resume_force_mode(dev);
 725
 726         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 727                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 728
 729                 if (!nv_crtc->cursor.nvbo)
 730                         continue;
 731
 732                 if (nv_crtc->cursor.set_offset)
 733                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 734                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 735                                                  nv_crtc->cursor_saved_y);
 736         }
 737 }
 738
 739 static int
 740 nouveau_page_flip_emit(struct nouveau_channel *chan,
 741                        struct nouveau_bo *old_bo,
 742                        struct nouveau_bo *new_bo,
 743                        struct nouveau_page_flip_state *s,
 744                        struct nouveau_fence **pfence)
 745 {
 746         struct nouveau_fence_chan *fctx = chan->fence;
 747         struct nouveau_drm *drm = chan->drm;
 748         struct drm_device *dev = drm->dev;
 749         unsigned long flags;
 750         int ret;
 751
 752         /* Queue it to the pending list */
 753         spin_lock_irqsave(&dev->event_lock, flags);
 754         list_add_tail(&s->head, &fctx->flip);
 755         spin_unlock_irqrestore(&dev->event_lock, flags);
 756
 757         /* Synchronize with the old framebuffer */
 758         ret = nouveau_fence_sync(old_bo, chan, false, false);
 759         if (ret)
 760                 goto fail;
 761
 762         /* Emit the pageflip */
 763         ret = RING_SPACE(chan, 2);
 764         if (ret)
 765                 goto fail;
 766
 767         BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 768         OUT_RING  (chan, 0x00000000);
 769         FIRE_RING (chan);
 770
 771         ret = nouveau_fence_new(chan, false, pfence);
 772         if (ret)
 773                 goto fail;
 774
 775         return 0;
 776 fail:
 777         spin_lock_irqsave(&dev->event_lock, flags);
 778         list_del(&s->head);
 779         spin_unlock_irqrestore(&dev->event_lock, flags);
 780         return ret;
 781 }
 782
 783 int
 784 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 785                        struct drm_pending_vblank_event *event, u32 flags,
 786                        struct drm_modeset_acquire_ctx *ctx)
 787 {
 788         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 789         struct drm_device *dev = crtc->dev;
 790         struct nouveau_drm *drm = nouveau_drm(dev);
 791         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 792         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 793         struct nouveau_page_flip_state *s;
 794         struct nouveau_channel *chan;
 795         struct nouveau_cli *cli;
 796         struct nouveau_fence *fence;
 797         struct nv04_display *dispnv04 = nv04_display(dev);
 798         int head = nouveau_crtc(crtc)->index;
 799         int ret;
 800
 801         chan = drm->channel;
 802         if (!chan)
 803                 return -ENODEV;
 804         cli = (void *)chan->user.client;
 805
 806         s = kzalloc(sizeof(*s), GFP_KERNEL);
 807         if (!s)
 808                 return -ENOMEM;
 809
 810         if (new_bo != old_bo) {
 811                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 812                 if (ret)
 813                         goto fail_free;
 814         }
 815
 816         mutex_lock(&cli->mutex);
 817         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
 818         if (ret)
 819                 goto fail_unpin;
 820
 821         /* synchronise rendering channel with the kernel's channel */
 822         ret = nouveau_fence_sync(new_bo, chan, false, true);
 823         if (ret) {
 824                 ttm_bo_unreserve(&new_bo->bo);
 825                 goto fail_unpin;
 826         }
 827
 828         if (new_bo != old_bo) {
 829                 ttm_bo_unreserve(&new_bo->bo);
 830
 831                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
 832                 if (ret)
 833                         goto fail_unpin;
 834         }
 835
 836         /* Initialize a page flip struct */
 837         *s = (struct nouveau_page_flip_state)
 838                 { { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
 839                   new_bo->bo.offset };
 840
 841         /* Keep vblanks on during flip, for the target crtc of this flip */
 842         drm_crtc_vblank_get(crtc);
 843
 844         /* Emit a page flip */
 845         if (swap_interval) {
 846                 ret = RING_SPACE(chan, 8);
 847                 if (ret)
 848                         goto fail_unreserve;
 849
 850                 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 851                 OUT_RING  (chan, 0);
 852                 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 853                 OUT_RING  (chan, head);
 854                 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 855                 OUT_RING  (chan, 0);
 856                 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 857                 OUT_RING  (chan, 0);
 858         }
 859
 860         nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 861
 862         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 863         if (ret)
 864                 goto fail_unreserve;
 865         mutex_unlock(&cli->mutex);
 866
 867         /* Update the crtc struct and cleanup */
 868         crtc->primary->fb = fb;
 869
 870         nouveau_bo_fence(old_bo, fence, false);
 871         ttm_bo_unreserve(&old_bo->bo);
 872         if (old_bo != new_bo)
 873                 nouveau_bo_unpin(old_bo);
 874         nouveau_fence_unref(&fence);
 875         return 0;
 876
 877 fail_unreserve:
 878         drm_crtc_vblank_put(crtc);
 879         ttm_bo_unreserve(&old_bo->bo);
 880 fail_unpin:
 881         mutex_unlock(&cli->mutex);
 882         if (old_bo != new_bo)
 883                 nouveau_bo_unpin(new_bo);
 884 fail_free:
 885         kfree(s);
 886         return ret;
 887 }
 888
 889 int
 890 nouveau_finish_page_flip(struct nouveau_channel *chan,
 891                          struct nouveau_page_flip_state *ps)
 892 {
 893         struct nouveau_fence_chan *fctx = chan->fence;
 894         struct nouveau_drm *drm = chan->drm;
 895         struct drm_device *dev = drm->dev;
 896         struct nouveau_page_flip_state *s;
 897         unsigned long flags;
 898
 899         spin_lock_irqsave(&dev->event_lock, flags);
 900
 901         if (list_empty(&fctx->flip)) {
 902                 NV_ERROR(drm, "unexpected pageflip\n");
 903                 spin_unlock_irqrestore(&dev->event_lock, flags);
 904                 return -EINVAL;
 905         }
 906
 907         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 908         if (s->event) {
 909                 drm_crtc_arm_vblank_event(s->crtc, s->event);
 910         } else {
 911                 /* Give up ownership of vblank for page-flipped crtc */
 912                 drm_crtc_vblank_put(s->crtc);
 913         }
 914
 915         list_del(&s->head);
 916         if (ps)
 917                 *ps = *s;
 918         kfree(s);
 919
 920         spin_unlock_irqrestore(&dev->event_lock, flags);
 921         return 0;
 922 }
 923
 924 int
 925 nouveau_flip_complete(struct nvif_notify *notify)
 926 {
 927         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
 928         struct nouveau_channel *chan = drm->channel;
 929         struct nouveau_page_flip_state state;
 930
 931         if (!nouveau_finish_page_flip(chan, &state)) {
 932                 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
 933                                  state.offset + state.crtc->y *
 934                                  state.pitch + state.crtc->x *
 935                                  state.bpp / 8);
 936         }
 937
 938         return NVIF_NOTIFY_KEEP;
 939 }
 940
 941 int
 942 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 943                             struct drm_mode_create_dumb *args)
 944 {
 945         struct nouveau_cli *cli = nouveau_cli(file_priv);
 946         struct nouveau_bo *bo;
 947         uint32_t domain;
 948         int ret;
 949
 950         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 951         args->size = args->pitch * args->height;
 952         args->size = roundup(args->size, PAGE_SIZE);
 953
 954         /* Use VRAM if there is any ; otherwise fallback to system memory */
 955         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 956                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 957         else
 958                 domain = NOUVEAU_GEM_DOMAIN_GART;
 959
 960         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 961         if (ret)
 962                 return ret;
 963
 964         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 965         drm_gem_object_unreference_unlocked(&bo->gem);
 966         return ret;
 967 }
 968
 969 int
 970 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 971                                 struct drm_device *dev,
 972                                 uint32_t handle, uint64_t *poffset)
 973 {
 974         struct drm_gem_object *gem;
 975
 976         gem = drm_gem_object_lookup(file_priv, handle);
 977         if (gem) {
 978                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 979                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
 980                 drm_gem_object_unreference_unlocked(gem);
 981                 return 0;
 982         }
 983
 984         return -ENOENT;
 985 }