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.object, 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.object,
 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_put_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_put_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 = nouveau_fbcon_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                 while (p && l->gen_mask) {                                     \
 342                         if (l->gen_mask & (1 << (gen))) {                      \
 343                                 drm_property_add_enum(p, l->type, l->name);    \
 344                         }                                                      \
 345                         l++;                                                   \
 346                 }                                                              \
 347         }                                                                      \
 348 } while(0)
 349
 350 static void
 351 nouveau_display_hpd_work(struct work_struct *work)
 352 {
 353         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 354
 355         pm_runtime_get_sync(drm->dev->dev);
 356
 357         drm_helper_hpd_irq_event(drm->dev);
 358
 359         pm_runtime_mark_last_busy(drm->dev->dev);
 360         pm_runtime_put_sync(drm->dev->dev);
 361 }
 362
 363 #ifdef CONFIG_ACPI
 364
 365 /*
 366  * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
 367  * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
 368  * This should be dropped once that is merged.
 369  */
 370 #ifndef ACPI_VIDEO_NOTIFY_PROBE
 371 #define ACPI_VIDEO_NOTIFY_PROBE                 0x81
 372 #endif
 373
 374 static int
 375 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 376                           void *data)
 377 {
 378         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 379         struct acpi_bus_event *info = data;
 380         int ret;
 381
 382         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 383                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 384                         ret = pm_runtime_get(drm->dev->dev);
 385                         if (ret == 1 || ret == -EACCES) {
 386                                 /* If the GPU is already awake, or in a state
 387                                  * where we can't wake it up, it can handle
 388                                  * it's own hotplug events.
 389                                  */
 390                                 pm_runtime_put_autosuspend(drm->dev->dev);
 391                         } else if (ret == 0) {
 392                                 /* This may be the only indication we receive
 393                                  * of a connector hotplug on a runtime
 394                                  * suspended GPU, schedule hpd_work to check.
 395                                  */
 396                                 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 397                                 schedule_work(&drm->hpd_work);
 398                                 pm_runtime_put_noidle(drm->dev->dev);
 399                         } else {
 400                                 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 401                                         ret);
 402                         }
 403
 404                         /* acpi-video should not generate keypresses for this */
 405                         return NOTIFY_BAD;
 406                 }
 407         }
 408
 409         return NOTIFY_DONE;
 410 }
 411 #endif
 412
 413 int
 414 nouveau_display_init(struct drm_device *dev)
 415 {
 416         struct nouveau_display *disp = nouveau_display(dev);
 417         struct nouveau_drm *drm = nouveau_drm(dev);
 418         struct drm_connector *connector;
 419         struct drm_connector_list_iter conn_iter;
 420         int ret;
 421
 422         ret = disp->init(dev);
 423         if (ret)
 424                 return ret;
 425
 426         /* enable connector detection and polling for connectors without HPD
 427          * support
 428          */
 429         drm_kms_helper_poll_enable(dev);
 430
 431         /* enable hotplug interrupts */
 432         drm_connector_list_iter_begin(dev, &conn_iter);
 433         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 434                 struct nouveau_connector *conn = nouveau_connector(connector);
 435                 nvif_notify_get(&conn->hpd);
 436         }
 437         drm_connector_list_iter_end(&conn_iter);
 438
 439         /* enable flip completion events */
 440         nvif_notify_get(&drm->flip);
 441         return ret;
 442 }
 443
 444 void
 445 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 446 {
 447         struct nouveau_display *disp = nouveau_display(dev);
 448         struct nouveau_drm *drm = nouveau_drm(dev);
 449         struct drm_connector *connector;
 450         struct drm_connector_list_iter conn_iter;
 451
 452         if (!suspend) {
 453                 if (drm_drv_uses_atomic_modeset(dev))
 454                         drm_atomic_helper_shutdown(dev);
 455                 else
 456                         drm_crtc_force_disable_all(dev);
 457         }
 458
 459         /* disable flip completion events */
 460         nvif_notify_put(&drm->flip);
 461
 462         /* disable hotplug interrupts */
 463         drm_connector_list_iter_begin(dev, &conn_iter);
 464         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 465                 struct nouveau_connector *conn = nouveau_connector(connector);
 466                 nvif_notify_put(&conn->hpd);
 467         }
 468         drm_connector_list_iter_end(&conn_iter);
 469
 470         if (!runtime)
 471                 cancel_work_sync(&drm->hpd_work);
 472
 473         drm_kms_helper_poll_disable(dev);
 474         disp->fini(dev);
 475 }
 476
 477 static void
 478 nouveau_display_create_properties(struct drm_device *dev)
 479 {
 480         struct nouveau_display *disp = nouveau_display(dev);
 481         int gen;
 482
 483         if (disp->disp.object.oclass < NV50_DISP)
 484                 gen = 0;
 485         else
 486         if (disp->disp.object.oclass < GF110_DISP)
 487                 gen = 1;
 488         else
 489                 gen = 2;
 490
 491         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 492         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 493         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 494
 495         disp->underscan_hborder_property =
 496                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 497
 498         disp->underscan_vborder_property =
 499                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 500
 501         if (gen < 1)
 502                 return;
 503
 504         /* -90..+90 */
 505         disp->vibrant_hue_property =
 506                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 507
 508         /* -100..+100 */
 509         disp->color_vibrance_property =
 510                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 511 }
 512
 513 int
 514 nouveau_display_create(struct drm_device *dev)
 515 {
 516         struct nouveau_drm *drm = nouveau_drm(dev);
 517         struct nvkm_device *device = nvxx_device(&drm->client.device);
 518         struct nouveau_display *disp;
 519         int ret;
 520
 521         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 522         if (!disp)
 523                 return -ENOMEM;
 524
 525         drm_mode_config_init(dev);
 526         drm_mode_create_scaling_mode_property(dev);
 527         drm_mode_create_dvi_i_properties(dev);
 528
 529         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 530         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 531
 532         dev->mode_config.min_width = 0;
 533         dev->mode_config.min_height = 0;
 534         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 535                 dev->mode_config.max_width = 2048;
 536                 dev->mode_config.max_height = 2048;
 537         } else
 538         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 539                 dev->mode_config.max_width = 4096;
 540                 dev->mode_config.max_height = 4096;
 541         } else
 542         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 543                 dev->mode_config.max_width = 8192;
 544                 dev->mode_config.max_height = 8192;
 545         } else {
 546                 dev->mode_config.max_width = 16384;
 547                 dev->mode_config.max_height = 16384;
 548         }
 549
 550         dev->mode_config.preferred_depth = 24;
 551         dev->mode_config.prefer_shadow = 1;
 552
 553         if (drm->client.device.info.chipset < 0x11)
 554                 dev->mode_config.async_page_flip = false;
 555         else
 556                 dev->mode_config.async_page_flip = true;
 557
 558         drm_kms_helper_poll_init(dev);
 559         drm_kms_helper_poll_disable(dev);
 560
 561         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 562                 ret = nvif_disp_ctor(&drm->client.device, 0, &disp->disp);
 563                 if (ret == 0) {
 564                         nouveau_display_create_properties(dev);
 565                         if (disp->disp.object.oclass < NV50_DISP)
 566                                 ret = nv04_display_create(dev);
 567                         else
 568                                 ret = nv50_display_create(dev);
 569                 }
 570         } else {
 571                 ret = 0;
 572         }
 573
 574         if (ret)
 575                 goto disp_create_err;
 576
 577         drm_mode_config_reset(dev);
 578
 579         if (dev->mode_config.num_crtc) {
 580                 ret = nouveau_display_vblank_init(dev);
 581                 if (ret)
 582                         goto vblank_err;
 583         }
 584
 585         nouveau_backlight_init(dev);
 586         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 587 #ifdef CONFIG_ACPI
 588         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 589         register_acpi_notifier(&drm->acpi_nb);
 590 #endif
 591
 592         return 0;
 593
 594 vblank_err:
 595         disp->dtor(dev);
 596 disp_create_err:
 597         drm_kms_helper_poll_fini(dev);
 598         drm_mode_config_cleanup(dev);
 599         return ret;
 600 }
 601
 602 void
 603 nouveau_display_destroy(struct drm_device *dev)
 604 {
 605         struct nouveau_display *disp = nouveau_display(dev);
 606
 607 #ifdef CONFIG_ACPI
 608         unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
 609 #endif
 610         nouveau_backlight_exit(dev);
 611         nouveau_display_vblank_fini(dev);
 612
 613         drm_kms_helper_poll_fini(dev);
 614         drm_mode_config_cleanup(dev);
 615
 616         if (disp->dtor)
 617                 disp->dtor(dev);
 618
 619         nvif_disp_dtor(&disp->disp);
 620
 621         nouveau_drm(dev)->display = NULL;
 622         kfree(disp);
 623 }
 624
 625 int
 626 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 627 {
 628         struct nouveau_display *disp = nouveau_display(dev);
 629         struct drm_crtc *crtc;
 630
 631         if (drm_drv_uses_atomic_modeset(dev)) {
 632                 if (!runtime) {
 633                         disp->suspend = drm_atomic_helper_suspend(dev);
 634                         if (IS_ERR(disp->suspend)) {
 635                                 int ret = PTR_ERR(disp->suspend);
 636                                 disp->suspend = NULL;
 637                                 return ret;
 638                         }
 639                 }
 640
 641                 nouveau_display_fini(dev, true, runtime);
 642                 return 0;
 643         }
 644
 645         nouveau_display_fini(dev, true, runtime);
 646
 647         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 648                 struct nouveau_framebuffer *nouveau_fb;
 649
 650                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 651                 if (!nouveau_fb || !nouveau_fb->nvbo)
 652                         continue;
 653
 654                 nouveau_bo_unpin(nouveau_fb->nvbo);
 655         }
 656
 657         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 658                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 659                 if (nv_crtc->cursor.nvbo) {
 660                         if (nv_crtc->cursor.set_offset)
 661                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 662                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 663                 }
 664         }
 665
 666         return 0;
 667 }
 668
 669 void
 670 nouveau_display_resume(struct drm_device *dev, bool runtime)
 671 {
 672         struct nouveau_display *disp = nouveau_display(dev);
 673         struct nouveau_drm *drm = nouveau_drm(dev);
 674         struct drm_crtc *crtc;
 675         int ret;
 676
 677         if (drm_drv_uses_atomic_modeset(dev)) {
 678                 nouveau_display_init(dev);
 679                 if (disp->suspend) {
 680                         drm_atomic_helper_resume(dev, disp->suspend);
 681                         disp->suspend = NULL;
 682                 }
 683                 return;
 684         }
 685
 686         /* re-pin fb/cursors */
 687         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 688                 struct nouveau_framebuffer *nouveau_fb;
 689
 690                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 691                 if (!nouveau_fb || !nouveau_fb->nvbo)
 692                         continue;
 693
 694                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 695                 if (ret)
 696                         NV_ERROR(drm, "Could not pin framebuffer\n");
 697         }
 698
 699         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 700                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 701                 if (!nv_crtc->cursor.nvbo)
 702                         continue;
 703
 704                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 705                 if (!ret && nv_crtc->cursor.set_offset)
 706                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 707                 if (ret)
 708                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 709         }
 710
 711         nouveau_display_init(dev);
 712
 713         /* Force CLUT to get re-loaded during modeset */
 714         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 715                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 716
 717                 nv_crtc->lut.depth = 0;
 718         }
 719
 720         /* This should ensure we don't hit a locking problem when someone
 721          * wakes us up via a connector.  We should never go into suspend
 722          * while the display is on anyways.
 723          */
 724         if (runtime)
 725                 return;
 726
 727         drm_helper_resume_force_mode(dev);
 728
 729         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 730                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 731
 732                 if (!nv_crtc->cursor.nvbo)
 733                         continue;
 734
 735                 if (nv_crtc->cursor.set_offset)
 736                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 737                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 738                                                  nv_crtc->cursor_saved_y);
 739         }
 740 }
 741
 742 static int
 743 nouveau_page_flip_emit(struct nouveau_channel *chan,
 744                        struct nouveau_bo *old_bo,
 745                        struct nouveau_bo *new_bo,
 746                        struct nouveau_page_flip_state *s,
 747                        struct nouveau_fence **pfence)
 748 {
 749         struct nouveau_fence_chan *fctx = chan->fence;
 750         struct nouveau_drm *drm = chan->drm;
 751         struct drm_device *dev = drm->dev;
 752         unsigned long flags;
 753         int ret;
 754
 755         /* Queue it to the pending list */
 756         spin_lock_irqsave(&dev->event_lock, flags);
 757         list_add_tail(&s->head, &fctx->flip);
 758         spin_unlock_irqrestore(&dev->event_lock, flags);
 759
 760         /* Synchronize with the old framebuffer */
 761         ret = nouveau_fence_sync(old_bo, chan, false, false);
 762         if (ret)
 763                 goto fail;
 764
 765         /* Emit the pageflip */
 766         ret = RING_SPACE(chan, 2);
 767         if (ret)
 768                 goto fail;
 769
 770         BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 771         OUT_RING  (chan, 0x00000000);
 772         FIRE_RING (chan);
 773
 774         ret = nouveau_fence_new(chan, false, pfence);
 775         if (ret)
 776                 goto fail;
 777
 778         return 0;
 779 fail:
 780         spin_lock_irqsave(&dev->event_lock, flags);
 781         list_del(&s->head);
 782         spin_unlock_irqrestore(&dev->event_lock, flags);
 783         return ret;
 784 }
 785
 786 int
 787 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 788                        struct drm_pending_vblank_event *event, u32 flags,
 789                        struct drm_modeset_acquire_ctx *ctx)
 790 {
 791         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 792         struct drm_device *dev = crtc->dev;
 793         struct nouveau_drm *drm = nouveau_drm(dev);
 794         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 795         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 796         struct nouveau_page_flip_state *s;
 797         struct nouveau_channel *chan;
 798         struct nouveau_cli *cli;
 799         struct nouveau_fence *fence;
 800         struct nv04_display *dispnv04 = nv04_display(dev);
 801         int head = nouveau_crtc(crtc)->index;
 802         int ret;
 803
 804         chan = drm->channel;
 805         if (!chan)
 806                 return -ENODEV;
 807         cli = (void *)chan->user.client;
 808
 809         s = kzalloc(sizeof(*s), GFP_KERNEL);
 810         if (!s)
 811                 return -ENOMEM;
 812
 813         if (new_bo != old_bo) {
 814                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 815                 if (ret)
 816                         goto fail_free;
 817         }
 818
 819         mutex_lock(&cli->mutex);
 820         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
 821         if (ret)
 822                 goto fail_unpin;
 823
 824         /* synchronise rendering channel with the kernel's channel */
 825         ret = nouveau_fence_sync(new_bo, chan, false, true);
 826         if (ret) {
 827                 ttm_bo_unreserve(&new_bo->bo);
 828                 goto fail_unpin;
 829         }
 830
 831         if (new_bo != old_bo) {
 832                 ttm_bo_unreserve(&new_bo->bo);
 833
 834                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
 835                 if (ret)
 836                         goto fail_unpin;
 837         }
 838
 839         /* Initialize a page flip struct */
 840         *s = (struct nouveau_page_flip_state)
 841                 { { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
 842                   new_bo->bo.offset };
 843
 844         /* Keep vblanks on during flip, for the target crtc of this flip */
 845         drm_crtc_vblank_get(crtc);
 846
 847         /* Emit a page flip */
 848         if (swap_interval) {
 849                 ret = RING_SPACE(chan, 8);
 850                 if (ret)
 851                         goto fail_unreserve;
 852
 853                 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 854                 OUT_RING  (chan, 0);
 855                 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 856                 OUT_RING  (chan, head);
 857                 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 858                 OUT_RING  (chan, 0);
 859                 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 860                 OUT_RING  (chan, 0);
 861         }
 862
 863         nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 864
 865         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 866         if (ret)
 867                 goto fail_unreserve;
 868         mutex_unlock(&cli->mutex);
 869
 870         /* Update the crtc struct and cleanup */
 871         crtc->primary->fb = fb;
 872
 873         nouveau_bo_fence(old_bo, fence, false);
 874         ttm_bo_unreserve(&old_bo->bo);
 875         if (old_bo != new_bo)
 876                 nouveau_bo_unpin(old_bo);
 877         nouveau_fence_unref(&fence);
 878         return 0;
 879
 880 fail_unreserve:
 881         drm_crtc_vblank_put(crtc);
 882         ttm_bo_unreserve(&old_bo->bo);
 883 fail_unpin:
 884         mutex_unlock(&cli->mutex);
 885         if (old_bo != new_bo)
 886                 nouveau_bo_unpin(new_bo);
 887 fail_free:
 888         kfree(s);
 889         return ret;
 890 }
 891
 892 int
 893 nouveau_finish_page_flip(struct nouveau_channel *chan,
 894                          struct nouveau_page_flip_state *ps)
 895 {
 896         struct nouveau_fence_chan *fctx = chan->fence;
 897         struct nouveau_drm *drm = chan->drm;
 898         struct drm_device *dev = drm->dev;
 899         struct nouveau_page_flip_state *s;
 900         unsigned long flags;
 901
 902         spin_lock_irqsave(&dev->event_lock, flags);
 903
 904         if (list_empty(&fctx->flip)) {
 905                 NV_ERROR(drm, "unexpected pageflip\n");
 906                 spin_unlock_irqrestore(&dev->event_lock, flags);
 907                 return -EINVAL;
 908         }
 909
 910         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 911         if (s->event) {
 912                 drm_crtc_arm_vblank_event(s->crtc, s->event);
 913         } else {
 914                 /* Give up ownership of vblank for page-flipped crtc */
 915                 drm_crtc_vblank_put(s->crtc);
 916         }
 917
 918         list_del(&s->head);
 919         if (ps)
 920                 *ps = *s;
 921         kfree(s);
 922
 923         spin_unlock_irqrestore(&dev->event_lock, flags);
 924         return 0;
 925 }
 926
 927 int
 928 nouveau_flip_complete(struct nvif_notify *notify)
 929 {
 930         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
 931         struct nouveau_channel *chan = drm->channel;
 932         struct nouveau_page_flip_state state;
 933
 934         if (!nouveau_finish_page_flip(chan, &state)) {
 935                 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
 936                                  state.offset + state.crtc->y *
 937                                  state.pitch + state.crtc->x *
 938                                  state.bpp / 8);
 939         }
 940
 941         return NVIF_NOTIFY_KEEP;
 942 }
 943
 944 int
 945 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 946                             struct drm_mode_create_dumb *args)
 947 {
 948         struct nouveau_cli *cli = nouveau_cli(file_priv);
 949         struct nouveau_bo *bo;
 950         uint32_t domain;
 951         int ret;
 952
 953         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 954         args->size = args->pitch * args->height;
 955         args->size = roundup(args->size, PAGE_SIZE);
 956
 957         /* Use VRAM if there is any ; otherwise fallback to system memory */
 958         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 959                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 960         else
 961                 domain = NOUVEAU_GEM_DOMAIN_GART;
 962
 963         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 964         if (ret)
 965                 return ret;
 966
 967         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 968         drm_gem_object_put_unlocked(&bo->gem);
 969         return ret;
 970 }
 971
 972 int
 973 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 974                                 struct drm_device *dev,
 975                                 uint32_t handle, uint64_t *poffset)
 976 {
 977         struct drm_gem_object *gem;
 978
 979         gem = drm_gem_object_lookup(file_priv, handle);
 980         if (gem) {
 981                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 982                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
 983                 drm_gem_object_put_unlocked(gem);
 984                 return 0;
 985         }
 986
 987         return -ENOENT;
 988 }