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 bool
 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 retry = 20;
 115         bool ret = false;
 116
 117         do {
 118                 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
 119                 if (ret != 0)
 120                         return false;
 121
 122                 if (args.scan.vline) {
 123                         ret = true;
 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         return ret;
 137 }
 138
 139 bool
 140 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
 141                            bool in_vblank_irq, int *vpos, int *hpos,
 142                            ktime_t *stime, ktime_t *etime,
 143                            const struct drm_display_mode *mode)
 144 {
 145         struct drm_crtc *crtc;
 146
 147         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 148                 if (nouveau_crtc(crtc)->index == pipe) {
 149                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 150                                                                stime, etime);
 151                 }
 152         }
 153
 154         return false;
 155 }
 156
 157 static void
 158 nouveau_display_vblank_fini(struct drm_device *dev)
 159 {
 160         struct drm_crtc *crtc;
 161
 162         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 163                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 164                 nvif_notify_fini(&nv_crtc->vblank);
 165         }
 166 }
 167
 168 static int
 169 nouveau_display_vblank_init(struct drm_device *dev)
 170 {
 171         struct nouveau_display *disp = nouveau_display(dev);
 172         struct drm_crtc *crtc;
 173         int ret;
 174
 175         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 176                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 177                 ret = nvif_notify_init(&disp->disp,
 178                                        nouveau_display_vblank_handler, false,
 179                                        NV04_DISP_NTFY_VBLANK,
 180                                        &(struct nvif_notify_head_req_v0) {
 181                                         .head = nv_crtc->index,
 182                                        },
 183                                        sizeof(struct nvif_notify_head_req_v0),
 184                                        sizeof(struct nvif_notify_head_rep_v0),
 185                                        &nv_crtc->vblank);
 186                 if (ret) {
 187                         nouveau_display_vblank_fini(dev);
 188                         return ret;
 189                 }
 190         }
 191
 192         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 193         if (ret) {
 194                 nouveau_display_vblank_fini(dev);
 195                 return ret;
 196         }
 197
 198         return 0;
 199 }
 200
 201 static void
 202 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 203 {
 204         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 205
 206         if (fb->nvbo)
 207                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 208
 209         drm_framebuffer_cleanup(drm_fb);
 210         kfree(fb);
 211 }
 212
 213 static int
 214 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 215                                        struct drm_file *file_priv,
 216                                        unsigned int *handle)
 217 {
 218         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 219
 220         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 221 }
 222
 223 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 224         .destroy = nouveau_user_framebuffer_destroy,
 225         .create_handle = nouveau_user_framebuffer_create_handle,
 226 };
 227
 228 int
 229 nouveau_framebuffer_new(struct drm_device *dev,
 230                         const struct drm_mode_fb_cmd2 *mode_cmd,
 231                         struct nouveau_bo *nvbo,
 232                         struct nouveau_framebuffer **pfb)
 233 {
 234         struct nouveau_drm *drm = nouveau_drm(dev);
 235         struct nouveau_framebuffer *fb;
 236         int ret;
 237
 238         /* YUV overlays have special requirements pre-NV50 */
 239         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
 240
 241             (mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
 242              mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
 243              mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
 244              mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
 245             (mode_cmd->pitches[0] & 0x3f || /* align 64 */
 246              mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
 247              (mode_cmd->pitches[1] && /* pitches for planes must match */
 248               mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
 249                 struct drm_format_name_buf format_name;
 250                 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n",
 251                               drm_get_format_name(mode_cmd->pixel_format,
 252                                                   &format_name),
 253                               mode_cmd->pitches[0],
 254                               mode_cmd->pitches[1]);
 255                 return -EINVAL;
 256         }
 257
 258         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 259                 return -ENOMEM;
 260
 261         drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
 262         fb->nvbo = nvbo;
 263
 264         ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
 265         if (ret)
 266                 kfree(fb);
 267         return ret;
 268 }
 269
 270 struct drm_framebuffer *
 271 nouveau_user_framebuffer_create(struct drm_device *dev,
 272                                 struct drm_file *file_priv,
 273                                 const struct drm_mode_fb_cmd2 *mode_cmd)
 274 {
 275         struct nouveau_framebuffer *fb;
 276         struct nouveau_bo *nvbo;
 277         struct drm_gem_object *gem;
 278         int ret;
 279
 280         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 281         if (!gem)
 282                 return ERR_PTR(-ENOENT);
 283         nvbo = nouveau_gem_object(gem);
 284
 285         ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
 286         if (ret == 0)
 287                 return &fb->base;
 288
 289         drm_gem_object_unreference_unlocked(gem);
 290         return ERR_PTR(ret);
 291 }
 292
 293 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 294         .fb_create = nouveau_user_framebuffer_create,
 295         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 296 };
 297
 298
 299 struct nouveau_drm_prop_enum_list {
 300         u8 gen_mask;
 301         int type;
 302         char *name;
 303 };
 304
 305 static struct nouveau_drm_prop_enum_list underscan[] = {
 306         { 6, UNDERSCAN_AUTO, "auto" },
 307         { 6, UNDERSCAN_OFF, "off" },
 308         { 6, UNDERSCAN_ON, "on" },
 309         {}
 310 };
 311
 312 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 313         { 7, DITHERING_MODE_AUTO, "auto" },
 314         { 7, DITHERING_MODE_OFF, "off" },
 315         { 1, DITHERING_MODE_ON, "on" },
 316         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 317         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 318         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 319         {}
 320 };
 321
 322 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 323         { 6, DITHERING_DEPTH_AUTO, "auto" },
 324         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 325         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 326         {}
 327 };
 328
 329 #define PROP_ENUM(p,gen,n,list) do {                                           \
 330         struct nouveau_drm_prop_enum_list *l = (list);                         \
 331         int c = 0;                                                             \
 332         while (l->gen_mask) {                                                  \
 333                 if (l->gen_mask & (1 << (gen)))                                \
 334                         c++;                                                   \
 335                 l++;                                                           \
 336         }                                                                      \
 337         if (c) {                                                               \
 338                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 339                 l = (list);                                                    \
 340                 c = 0;                                                         \
 341                 while (p && l->gen_mask) {                                     \
 342                         if (l->gen_mask & (1 << (gen))) {                      \
 343                                 drm_property_add_enum(p, c, l->type, l->name); \
 344                                 c++;                                           \
 345                         }                                                      \
 346                         l++;                                                   \
 347                 }                                                              \
 348         }                                                                      \
 349 } while(0)
 350
 351 static void
 352 nouveau_display_hpd_work(struct work_struct *work)
 353 {
 354         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 355
 356         pm_runtime_get_sync(drm->dev->dev);
 357
 358         drm_helper_hpd_irq_event(drm->dev);
 359
 360         pm_runtime_mark_last_busy(drm->dev->dev);
 361         pm_runtime_put_sync(drm->dev->dev);
 362 }
 363
 364 #ifdef CONFIG_ACPI
 365
 366 /*
 367  * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
 368  * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
 369  * This should be dropped once that is merged.
 370  */
 371 #ifndef ACPI_VIDEO_NOTIFY_PROBE
 372 #define ACPI_VIDEO_NOTIFY_PROBE                 0x81
 373 #endif
 374
 375 static int
 376 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 377                           void *data)
 378 {
 379         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 380         struct acpi_bus_event *info = data;
 381         int ret;
 382
 383         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 384                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 385                         ret = pm_runtime_get(drm->dev->dev);
 386                         if (ret == 1 || ret == -EACCES) {
 387                                 /* If the GPU is already awake, or in a state
 388                                  * where we can't wake it up, it can handle
 389                                  * it's own hotplug events.
 390                                  */
 391                                 pm_runtime_put_autosuspend(drm->dev->dev);
 392                         } else if (ret == 0) {
 393                                 /* This may be the only indication we receive
 394                                  * of a connector hotplug on a runtime
 395                                  * suspended GPU, schedule hpd_work to check.
 396                                  */
 397                                 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 398                                 schedule_work(&drm->hpd_work);
 399                                 pm_runtime_put_noidle(drm->dev->dev);
 400                         } else {
 401                                 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 402                                         ret);
 403                         }
 404
 405                         /* acpi-video should not generate keypresses for this */
 406                         return NOTIFY_BAD;
 407                 }
 408         }
 409
 410         return NOTIFY_DONE;
 411 }
 412 #endif
 413
 414 int
 415 nouveau_display_init(struct drm_device *dev)
 416 {
 417         struct nouveau_display *disp = nouveau_display(dev);
 418         struct nouveau_drm *drm = nouveau_drm(dev);
 419         struct drm_connector *connector;
 420         struct drm_connector_list_iter conn_iter;
 421         int ret;
 422
 423         ret = disp->init(dev);
 424         if (ret)
 425                 return ret;
 426
 427         /* enable connector detection and polling for connectors without HPD
 428          * support
 429          */
 430         drm_kms_helper_poll_enable(dev);
 431
 432         /* enable hotplug interrupts */
 433         drm_connector_list_iter_begin(dev, &conn_iter);
 434         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 435                 struct nouveau_connector *conn = nouveau_connector(connector);
 436                 nvif_notify_get(&conn->hpd);
 437         }
 438         drm_connector_list_iter_end(&conn_iter);
 439
 440         /* enable flip completion events */
 441         nvif_notify_get(&drm->flip);
 442         return ret;
 443 }
 444
 445 void
 446 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 447 {
 448         struct nouveau_display *disp = nouveau_display(dev);
 449         struct nouveau_drm *drm = nouveau_drm(dev);
 450         struct drm_connector *connector;
 451         struct drm_connector_list_iter conn_iter;
 452
 453         if (!suspend) {
 454                 if (drm_drv_uses_atomic_modeset(dev))
 455                         drm_atomic_helper_shutdown(dev);
 456                 else
 457                         drm_crtc_force_disable_all(dev);
 458         }
 459
 460         /* disable flip completion events */
 461         nvif_notify_put(&drm->flip);
 462
 463         /* disable hotplug interrupts */
 464         drm_connector_list_iter_begin(dev, &conn_iter);
 465         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 466                 struct nouveau_connector *conn = nouveau_connector(connector);
 467                 nvif_notify_put(&conn->hpd);
 468         }
 469         drm_connector_list_iter_end(&conn_iter);
 470
 471         if (!runtime)
 472                 cancel_work_sync(&drm->hpd_work);
 473
 474         drm_kms_helper_poll_disable(dev);
 475         disp->fini(dev);
 476 }
 477
 478 static void
 479 nouveau_display_create_properties(struct drm_device *dev)
 480 {
 481         struct nouveau_display *disp = nouveau_display(dev);
 482         int gen;
 483
 484         if (disp->disp.oclass < NV50_DISP)
 485                 gen = 0;
 486         else
 487         if (disp->disp.oclass < GF110_DISP)
 488                 gen = 1;
 489         else
 490                 gen = 2;
 491
 492         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 493         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 494         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 495
 496         disp->underscan_hborder_property =
 497                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 498
 499         disp->underscan_vborder_property =
 500                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 501
 502         if (gen < 1)
 503                 return;
 504
 505         /* -90..+90 */
 506         disp->vibrant_hue_property =
 507                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 508
 509         /* -100..+100 */
 510         disp->color_vibrance_property =
 511                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 512 }
 513
 514 int
 515 nouveau_display_create(struct drm_device *dev)
 516 {
 517         struct nouveau_drm *drm = nouveau_drm(dev);
 518         struct nvkm_device *device = nvxx_device(&drm->client.device);
 519         struct nouveau_display *disp;
 520         int ret;
 521
 522         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 523         if (!disp)
 524                 return -ENOMEM;
 525
 526         drm_mode_config_init(dev);
 527         drm_mode_create_scaling_mode_property(dev);
 528         drm_mode_create_dvi_i_properties(dev);
 529
 530         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 531         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 532
 533         dev->mode_config.min_width = 0;
 534         dev->mode_config.min_height = 0;
 535         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 536                 dev->mode_config.max_width = 2048;
 537                 dev->mode_config.max_height = 2048;
 538         } else
 539         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 540                 dev->mode_config.max_width = 4096;
 541                 dev->mode_config.max_height = 4096;
 542         } else
 543         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 544                 dev->mode_config.max_width = 8192;
 545                 dev->mode_config.max_height = 8192;
 546         } else {
 547                 dev->mode_config.max_width = 16384;
 548                 dev->mode_config.max_height = 16384;
 549         }
 550
 551         dev->mode_config.preferred_depth = 24;
 552         dev->mode_config.prefer_shadow = 1;
 553
 554         if (drm->client.device.info.chipset < 0x11)
 555                 dev->mode_config.async_page_flip = false;
 556         else
 557                 dev->mode_config.async_page_flip = true;
 558
 559         drm_kms_helper_poll_init(dev);
 560         drm_kms_helper_poll_disable(dev);
 561
 562         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 563                 static const u16 oclass[] = {
 564                         GP102_DISP,
 565                         GP100_DISP,
 566                         GM200_DISP,
 567                         GM107_DISP,
 568                         GK110_DISP,
 569                         GK104_DISP,
 570                         GF110_DISP,
 571                         GT214_DISP,
 572                         GT206_DISP,
 573                         GT200_DISP,
 574                         G82_DISP,
 575                         NV50_DISP,
 576                         NV04_DISP,
 577                 };
 578                 int i;
 579
 580                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 581                         ret = nvif_object_init(&drm->client.device.object, 0,
 582                                                oclass[i], NULL, 0, &disp->disp);
 583                 }
 584
 585                 if (ret == 0) {
 586                         nouveau_display_create_properties(dev);
 587                         if (disp->disp.oclass < NV50_DISP)
 588                                 ret = nv04_display_create(dev);
 589                         else
 590                                 ret = nv50_display_create(dev);
 591                 }
 592         } else {
 593                 ret = 0;
 594         }
 595
 596         if (ret)
 597                 goto disp_create_err;
 598
 599         drm_mode_config_reset(dev);
 600
 601         if (dev->mode_config.num_crtc) {
 602                 ret = nouveau_display_vblank_init(dev);
 603                 if (ret)
 604                         goto vblank_err;
 605         }
 606
 607         nouveau_backlight_init(dev);
 608         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 609 #ifdef CONFIG_ACPI
 610         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 611         register_acpi_notifier(&drm->acpi_nb);
 612 #endif
 613
 614         return 0;
 615
 616 vblank_err:
 617         disp->dtor(dev);
 618 disp_create_err:
 619         drm_kms_helper_poll_fini(dev);
 620         drm_mode_config_cleanup(dev);
 621         return ret;
 622 }
 623
 624 void
 625 nouveau_display_destroy(struct drm_device *dev)
 626 {
 627         struct nouveau_display *disp = nouveau_display(dev);
 628
 629 #ifdef CONFIG_ACPI
 630         unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
 631 #endif
 632         nouveau_backlight_exit(dev);
 633         nouveau_display_vblank_fini(dev);
 634
 635         drm_kms_helper_poll_fini(dev);
 636         drm_mode_config_cleanup(dev);
 637
 638         if (disp->dtor)
 639                 disp->dtor(dev);
 640
 641         nvif_object_fini(&disp->disp);
 642
 643         nouveau_drm(dev)->display = NULL;
 644         kfree(disp);
 645 }
 646
 647 int
 648 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 649 {
 650         struct nouveau_display *disp = nouveau_display(dev);
 651         struct drm_crtc *crtc;
 652
 653         if (drm_drv_uses_atomic_modeset(dev)) {
 654                 if (!runtime) {
 655                         disp->suspend = drm_atomic_helper_suspend(dev);
 656                         if (IS_ERR(disp->suspend)) {
 657                                 int ret = PTR_ERR(disp->suspend);
 658                                 disp->suspend = NULL;
 659                                 return ret;
 660                         }
 661                 }
 662
 663                 nouveau_display_fini(dev, true, runtime);
 664                 return 0;
 665         }
 666
 667         nouveau_display_fini(dev, true, runtime);
 668
 669         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 670                 struct nouveau_framebuffer *nouveau_fb;
 671
 672                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 673                 if (!nouveau_fb || !nouveau_fb->nvbo)
 674                         continue;
 675
 676                 nouveau_bo_unpin(nouveau_fb->nvbo);
 677         }
 678
 679         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 680                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 681                 if (nv_crtc->cursor.nvbo) {
 682                         if (nv_crtc->cursor.set_offset)
 683                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 684                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 685                 }
 686         }
 687
 688         return 0;
 689 }
 690
 691 void
 692 nouveau_display_resume(struct drm_device *dev, bool runtime)
 693 {
 694         struct nouveau_display *disp = nouveau_display(dev);
 695         struct nouveau_drm *drm = nouveau_drm(dev);
 696         struct drm_crtc *crtc;
 697         int ret;
 698
 699         if (drm_drv_uses_atomic_modeset(dev)) {
 700                 nouveau_display_init(dev);
 701                 if (disp->suspend) {
 702                         drm_atomic_helper_resume(dev, disp->suspend);
 703                         disp->suspend = NULL;
 704                 }
 705                 return;
 706         }
 707
 708         /* re-pin fb/cursors */
 709         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 710                 struct nouveau_framebuffer *nouveau_fb;
 711
 712                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 713                 if (!nouveau_fb || !nouveau_fb->nvbo)
 714                         continue;
 715
 716                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 717                 if (ret)
 718                         NV_ERROR(drm, "Could not pin framebuffer\n");
 719         }
 720
 721         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 722                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 723                 if (!nv_crtc->cursor.nvbo)
 724                         continue;
 725
 726                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 727                 if (!ret && nv_crtc->cursor.set_offset)
 728                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 729                 if (ret)
 730                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 731         }
 732
 733         nouveau_display_init(dev);
 734
 735         /* Force CLUT to get re-loaded during modeset */
 736         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 737                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 738
 739                 nv_crtc->lut.depth = 0;
 740         }
 741
 742         /* This should ensure we don't hit a locking problem when someone
 743          * wakes us up via a connector.  We should never go into suspend
 744          * while the display is on anyways.
 745          */
 746         if (runtime)
 747                 return;
 748
 749         drm_helper_resume_force_mode(dev);
 750
 751         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 752                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 753
 754                 if (!nv_crtc->cursor.nvbo)
 755                         continue;
 756
 757                 if (nv_crtc->cursor.set_offset)
 758                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 759                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 760                                                  nv_crtc->cursor_saved_y);
 761         }
 762 }
 763
 764 static int
 765 nouveau_page_flip_emit(struct nouveau_channel *chan,
 766                        struct nouveau_bo *old_bo,
 767                        struct nouveau_bo *new_bo,
 768                        struct nouveau_page_flip_state *s,
 769                        struct nouveau_fence **pfence)
 770 {
 771         struct nouveau_fence_chan *fctx = chan->fence;
 772         struct nouveau_drm *drm = chan->drm;
 773         struct drm_device *dev = drm->dev;
 774         unsigned long flags;
 775         int ret;
 776
 777         /* Queue it to the pending list */
 778         spin_lock_irqsave(&dev->event_lock, flags);
 779         list_add_tail(&s->head, &fctx->flip);
 780         spin_unlock_irqrestore(&dev->event_lock, flags);
 781
 782         /* Synchronize with the old framebuffer */
 783         ret = nouveau_fence_sync(old_bo, chan, false, false);
 784         if (ret)
 785                 goto fail;
 786
 787         /* Emit the pageflip */
 788         ret = RING_SPACE(chan, 2);
 789         if (ret)
 790                 goto fail;
 791
 792         BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 793         OUT_RING  (chan, 0x00000000);
 794         FIRE_RING (chan);
 795
 796         ret = nouveau_fence_new(chan, false, pfence);
 797         if (ret)
 798                 goto fail;
 799
 800         return 0;
 801 fail:
 802         spin_lock_irqsave(&dev->event_lock, flags);
 803         list_del(&s->head);
 804         spin_unlock_irqrestore(&dev->event_lock, flags);
 805         return ret;
 806 }
 807
 808 int
 809 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 810                        struct drm_pending_vblank_event *event, u32 flags,
 811                        struct drm_modeset_acquire_ctx *ctx)
 812 {
 813         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 814         struct drm_device *dev = crtc->dev;
 815         struct nouveau_drm *drm = nouveau_drm(dev);
 816         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 817         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 818         struct nouveau_page_flip_state *s;
 819         struct nouveau_channel *chan;
 820         struct nouveau_cli *cli;
 821         struct nouveau_fence *fence;
 822         struct nv04_display *dispnv04 = nv04_display(dev);
 823         int head = nouveau_crtc(crtc)->index;
 824         int ret;
 825
 826         chan = drm->channel;
 827         if (!chan)
 828                 return -ENODEV;
 829         cli = (void *)chan->user.client;
 830
 831         s = kzalloc(sizeof(*s), GFP_KERNEL);
 832         if (!s)
 833                 return -ENOMEM;
 834
 835         if (new_bo != old_bo) {
 836                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 837                 if (ret)
 838                         goto fail_free;
 839         }
 840
 841         mutex_lock(&cli->mutex);
 842         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
 843         if (ret)
 844                 goto fail_unpin;
 845
 846         /* synchronise rendering channel with the kernel's channel */
 847         ret = nouveau_fence_sync(new_bo, chan, false, true);
 848         if (ret) {
 849                 ttm_bo_unreserve(&new_bo->bo);
 850                 goto fail_unpin;
 851         }
 852
 853         if (new_bo != old_bo) {
 854                 ttm_bo_unreserve(&new_bo->bo);
 855
 856                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
 857                 if (ret)
 858                         goto fail_unpin;
 859         }
 860
 861         /* Initialize a page flip struct */
 862         *s = (struct nouveau_page_flip_state)
 863                 { { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
 864                   new_bo->bo.offset };
 865
 866         /* Keep vblanks on during flip, for the target crtc of this flip */
 867         drm_crtc_vblank_get(crtc);
 868
 869         /* Emit a page flip */
 870         if (swap_interval) {
 871                 ret = RING_SPACE(chan, 8);
 872                 if (ret)
 873                         goto fail_unreserve;
 874
 875                 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 876                 OUT_RING  (chan, 0);
 877                 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 878                 OUT_RING  (chan, head);
 879                 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 880                 OUT_RING  (chan, 0);
 881                 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 882                 OUT_RING  (chan, 0);
 883         }
 884
 885         nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 886
 887         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 888         if (ret)
 889                 goto fail_unreserve;
 890         mutex_unlock(&cli->mutex);
 891
 892         /* Update the crtc struct and cleanup */
 893         crtc->primary->fb = fb;
 894
 895         nouveau_bo_fence(old_bo, fence, false);
 896         ttm_bo_unreserve(&old_bo->bo);
 897         if (old_bo != new_bo)
 898                 nouveau_bo_unpin(old_bo);
 899         nouveau_fence_unref(&fence);
 900         return 0;
 901
 902 fail_unreserve:
 903         drm_crtc_vblank_put(crtc);
 904         ttm_bo_unreserve(&old_bo->bo);
 905 fail_unpin:
 906         mutex_unlock(&cli->mutex);
 907         if (old_bo != new_bo)
 908                 nouveau_bo_unpin(new_bo);
 909 fail_free:
 910         kfree(s);
 911         return ret;
 912 }
 913
 914 int
 915 nouveau_finish_page_flip(struct nouveau_channel *chan,
 916                          struct nouveau_page_flip_state *ps)
 917 {
 918         struct nouveau_fence_chan *fctx = chan->fence;
 919         struct nouveau_drm *drm = chan->drm;
 920         struct drm_device *dev = drm->dev;
 921         struct nouveau_page_flip_state *s;
 922         unsigned long flags;
 923
 924         spin_lock_irqsave(&dev->event_lock, flags);
 925
 926         if (list_empty(&fctx->flip)) {
 927                 NV_ERROR(drm, "unexpected pageflip\n");
 928                 spin_unlock_irqrestore(&dev->event_lock, flags);
 929                 return -EINVAL;
 930         }
 931
 932         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 933         if (s->event) {
 934                 drm_crtc_arm_vblank_event(s->crtc, s->event);
 935         } else {
 936                 /* Give up ownership of vblank for page-flipped crtc */
 937                 drm_crtc_vblank_put(s->crtc);
 938         }
 939
 940         list_del(&s->head);
 941         if (ps)
 942                 *ps = *s;
 943         kfree(s);
 944
 945         spin_unlock_irqrestore(&dev->event_lock, flags);
 946         return 0;
 947 }
 948
 949 int
 950 nouveau_flip_complete(struct nvif_notify *notify)
 951 {
 952         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
 953         struct nouveau_channel *chan = drm->channel;
 954         struct nouveau_page_flip_state state;
 955
 956         if (!nouveau_finish_page_flip(chan, &state)) {
 957                 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
 958                                  state.offset + state.crtc->y *
 959                                  state.pitch + state.crtc->x *
 960                                  state.bpp / 8);
 961         }
 962
 963         return NVIF_NOTIFY_KEEP;
 964 }
 965
 966 int
 967 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 968                             struct drm_mode_create_dumb *args)
 969 {
 970         struct nouveau_cli *cli = nouveau_cli(file_priv);
 971         struct nouveau_bo *bo;
 972         uint32_t domain;
 973         int ret;
 974
 975         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 976         args->size = args->pitch * args->height;
 977         args->size = roundup(args->size, PAGE_SIZE);
 978
 979         /* Use VRAM if there is any ; otherwise fallback to system memory */
 980         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 981                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 982         else
 983                 domain = NOUVEAU_GEM_DOMAIN_GART;
 984
 985         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 986         if (ret)
 987                 return ret;
 988
 989         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 990         drm_gem_object_unreference_unlocked(&bo->gem);
 991         return ret;
 992 }
 993
 994 int
 995 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 996                                 struct drm_device *dev,
 997                                 uint32_t handle, uint64_t *poffset)
 998 {
 999         struct drm_gem_object *gem;
1000
1001         gem = drm_gem_object_lookup(file_priv, handle);
1002         if (gem) {
1003                 struct nouveau_bo *bo = nouveau_gem_object(gem);
1004                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
1005                 drm_gem_object_unreference_unlocked(gem);
1006                 return 0;
1007         }
1008
1009         return -ENOENT;
1010 }