drivers/gpu/drm/nouveau/nouveau_display.c

   1 /*
   2  * Copyright (C) 2008 Maarten Maathuis.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include <drm/drmP.h>
  28 #include <drm/drm_crtc_helper.h>
  29
  30 #include <nvif/class.h>
  31
  32 #include "nouveau_fbcon.h"
  33 #include "dispnv04/hw.h"
  34 #include "nouveau_crtc.h"
  35 #include "nouveau_dma.h"
  36 #include "nouveau_gem.h"
  37 #include "nouveau_connector.h"
  38 #include "nv50_display.h"
  39
  40 #include "nouveau_fence.h"
  41
  42 #include <nvif/event.h>
  43
  44 static int
  45 nouveau_display_vblank_handler(struct nvif_notify *notify)
  46 {
  47         struct nouveau_crtc *nv_crtc =
  48                 container_of(notify, typeof(*nv_crtc), vblank);
  49         drm_handle_vblank(nv_crtc->base.dev, nv_crtc->index);
  50         return NVIF_NOTIFY_KEEP;
  51 }
  52
  53 int
  54 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
  55 {
  56         struct drm_crtc *crtc;
  57         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
  58                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
  59                 if (nv_crtc->index == pipe) {
  60                         nvif_notify_get(&nv_crtc->vblank);
  61                         return 0;
  62                 }
  63         }
  64         return -EINVAL;
  65 }
  66
  67 void
  68 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
  69 {
  70         struct drm_crtc *crtc;
  71         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
  72                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
  73                 if (nv_crtc->index == pipe) {
  74                         nvif_notify_put(&nv_crtc->vblank);
  75                         return;
  76                 }
  77         }
  78 }
  79
  80 static inline int
  81 calc(int blanks, int blanke, int total, int line)
  82 {
  83         if (blanke >= blanks) {
  84                 if (line >= blanks)
  85                         line -= total;
  86         } else {
  87                 if (line >= blanks)
  88                         line -= total;
  89                 line -= blanke + 1;
  90         }
  91         return line;
  92 }
  93
  94 int
  95 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
  96                                 ktime_t *stime, ktime_t *etime)
  97 {
  98         struct {
  99                 struct nv04_disp_mthd_v0 base;
 100                 struct nv04_disp_scanoutpos_v0 scan;
 101         } args = {
 102                 .base.method = NV04_DISP_SCANOUTPOS,
 103                 .base.head = nouveau_crtc(crtc)->index,
 104         };
 105         struct nouveau_display *disp = nouveau_display(crtc->dev);
 106         struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
 107         int ret, retry = 1;
 108
 109         do {
 110                 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
 111                 if (ret != 0)
 112                         return 0;
 113
 114                 if (args.scan.vline) {
 115                         ret |= DRM_SCANOUTPOS_ACCURATE;
 116                         ret |= DRM_SCANOUTPOS_VALID;
 117                         break;
 118                 }
 119
 120                 if (retry) ndelay(vblank->linedur_ns);
 121         } while (retry--);
 122
 123         *hpos = args.scan.hline;
 124         *vpos = calc(args.scan.vblanks, args.scan.vblanke,
 125                      args.scan.vtotal, args.scan.vline);
 126         if (stime) *stime = ns_to_ktime(args.scan.time[0]);
 127         if (etime) *etime = ns_to_ktime(args.scan.time[1]);
 128
 129         if (*vpos < 0)
 130                 ret |= DRM_SCANOUTPOS_IN_VBLANK;
 131         return ret;
 132 }
 133
 134 int
 135 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
 136                            unsigned int flags, int *vpos, int *hpos,
 137                            ktime_t *stime, ktime_t *etime,
 138                            const struct drm_display_mode *mode)
 139 {
 140         struct drm_crtc *crtc;
 141
 142         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 143                 if (nouveau_crtc(crtc)->index == pipe) {
 144                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 145                                                                stime, etime);
 146                 }
 147         }
 148
 149         return 0;
 150 }
 151
 152 int
 153 nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe,
 154                          int *max_error, struct timeval *time, unsigned flags)
 155 {
 156         struct drm_crtc *crtc;
 157
 158         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 159                 if (nouveau_crtc(crtc)->index == pipe) {
 160                         return drm_calc_vbltimestamp_from_scanoutpos(dev,
 161                                         pipe, max_error, time, flags,
 162                                         &crtc->hwmode);
 163                 }
 164         }
 165
 166         return -EINVAL;
 167 }
 168
 169 static void
 170 nouveau_display_vblank_fini(struct drm_device *dev)
 171 {
 172         struct drm_crtc *crtc;
 173
 174         drm_vblank_cleanup(dev);
 175
 176         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 177                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 178                 nvif_notify_fini(&nv_crtc->vblank);
 179         }
 180 }
 181
 182 static int
 183 nouveau_display_vblank_init(struct drm_device *dev)
 184 {
 185         struct nouveau_display *disp = nouveau_display(dev);
 186         struct drm_crtc *crtc;
 187         int ret;
 188
 189         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 190                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 191                 ret = nvif_notify_init(&disp->disp,
 192                                        nouveau_display_vblank_handler, false,
 193                                        NV04_DISP_NTFY_VBLANK,
 194                                        &(struct nvif_notify_head_req_v0) {
 195                                         .head = nv_crtc->index,
 196                                        },
 197                                        sizeof(struct nvif_notify_head_req_v0),
 198                                        sizeof(struct nvif_notify_head_rep_v0),
 199                                        &nv_crtc->vblank);
 200                 if (ret) {
 201                         nouveau_display_vblank_fini(dev);
 202                         return ret;
 203                 }
 204         }
 205
 206         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 207         if (ret) {
 208                 nouveau_display_vblank_fini(dev);
 209                 return ret;
 210         }
 211
 212         return 0;
 213 }
 214
 215 static void
 216 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 217 {
 218         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 219         struct nouveau_display *disp = nouveau_display(drm_fb->dev);
 220
 221         if (disp->fb_dtor)
 222                 disp->fb_dtor(drm_fb);
 223
 224         if (fb->nvbo)
 225                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 226
 227         drm_framebuffer_cleanup(drm_fb);
 228         kfree(fb);
 229 }
 230
 231 static int
 232 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 233                                        struct drm_file *file_priv,
 234                                        unsigned int *handle)
 235 {
 236         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 237
 238         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 239 }
 240
 241 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 242         .destroy = nouveau_user_framebuffer_destroy,
 243         .create_handle = nouveau_user_framebuffer_create_handle,
 244 };
 245
 246 int
 247 nouveau_framebuffer_init(struct drm_device *dev,
 248                          struct nouveau_framebuffer *nv_fb,
 249                          struct drm_mode_fb_cmd2 *mode_cmd,
 250                          struct nouveau_bo *nvbo)
 251 {
 252         struct nouveau_display *disp = nouveau_display(dev);
 253         struct drm_framebuffer *fb = &nv_fb->base;
 254         int ret;
 255
 256         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
 257         nv_fb->nvbo = nvbo;
 258
 259         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 260         if (ret)
 261                 return ret;
 262
 263         if (disp->fb_ctor) {
 264                 ret = disp->fb_ctor(fb);
 265                 if (ret)
 266                         disp->fb_dtor(fb);
 267         }
 268
 269         return ret;
 270 }
 271
 272 static struct drm_framebuffer *
 273 nouveau_user_framebuffer_create(struct drm_device *dev,
 274                                 struct drm_file *file_priv,
 275                                 struct drm_mode_fb_cmd2 *mode_cmd)
 276 {
 277         struct nouveau_framebuffer *nouveau_fb;
 278         struct drm_gem_object *gem;
 279         int ret = -ENOMEM;
 280
 281         gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 282         if (!gem)
 283                 return ERR_PTR(-ENOENT);
 284
 285         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 286         if (!nouveau_fb)
 287                 goto err_unref;
 288
 289         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 290         if (ret)
 291                 goto err;
 292
 293         return &nouveau_fb->base;
 294
 295 err:
 296         kfree(nouveau_fb);
 297 err_unref:
 298         drm_gem_object_unreference(gem);
 299         return ERR_PTR(ret);
 300 }
 301
 302 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 303         .fb_create = nouveau_user_framebuffer_create,
 304         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 305 };
 306
 307
 308 struct nouveau_drm_prop_enum_list {
 309         u8 gen_mask;
 310         int type;
 311         char *name;
 312 };
 313
 314 static struct nouveau_drm_prop_enum_list underscan[] = {
 315         { 6, UNDERSCAN_AUTO, "auto" },
 316         { 6, UNDERSCAN_OFF, "off" },
 317         { 6, UNDERSCAN_ON, "on" },
 318         {}
 319 };
 320
 321 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 322         { 7, DITHERING_MODE_AUTO, "auto" },
 323         { 7, DITHERING_MODE_OFF, "off" },
 324         { 1, DITHERING_MODE_ON, "on" },
 325         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 326         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 327         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 328         {}
 329 };
 330
 331 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 332         { 6, DITHERING_DEPTH_AUTO, "auto" },
 333         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 334         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 335         {}
 336 };
 337
 338 #define PROP_ENUM(p,gen,n,list) do {                                           \
 339         struct nouveau_drm_prop_enum_list *l = (list);                         \
 340         int c = 0;                                                             \
 341         while (l->gen_mask) {                                                  \
 342                 if (l->gen_mask & (1 << (gen)))                                \
 343                         c++;                                                   \
 344                 l++;                                                           \
 345         }                                                                      \
 346         if (c) {                                                               \
 347                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 348                 l = (list);                                                    \
 349                 c = 0;                                                         \
 350                 while (p && l->gen_mask) {                                     \
 351                         if (l->gen_mask & (1 << (gen))) {                      \
 352                                 drm_property_add_enum(p, c, l->type, l->name); \
 353                                 c++;                                           \
 354                         }                                                      \
 355                         l++;                                                   \
 356                 }                                                              \
 357         }                                                                      \
 358 } while(0)
 359
 360 int
 361 nouveau_display_init(struct drm_device *dev)
 362 {
 363         struct nouveau_display *disp = nouveau_display(dev);
 364         struct nouveau_drm *drm = nouveau_drm(dev);
 365         struct drm_connector *connector;
 366         int ret;
 367
 368         ret = disp->init(dev);
 369         if (ret)
 370                 return ret;
 371
 372         /* enable polling for external displays */
 373         drm_kms_helper_poll_enable(dev);
 374
 375         /* enable hotplug interrupts */
 376         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 377                 struct nouveau_connector *conn = nouveau_connector(connector);
 378                 nvif_notify_get(&conn->hpd);
 379         }
 380
 381         /* enable flip completion events */
 382         nvif_notify_get(&drm->flip);
 383         return ret;
 384 }
 385
 386 void
 387 nouveau_display_fini(struct drm_device *dev)
 388 {
 389         struct nouveau_display *disp = nouveau_display(dev);
 390         struct nouveau_drm *drm = nouveau_drm(dev);
 391         struct drm_connector *connector;
 392         int head;
 393
 394         /* Make sure that drm and hw vblank irqs get properly disabled. */
 395         for (head = 0; head < dev->mode_config.num_crtc; head++)
 396                 drm_vblank_off(dev, head);
 397
 398         /* disable flip completion events */
 399         nvif_notify_put(&drm->flip);
 400
 401         /* disable hotplug interrupts */
 402         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 403                 struct nouveau_connector *conn = nouveau_connector(connector);
 404                 nvif_notify_put(&conn->hpd);
 405         }
 406
 407         drm_kms_helper_poll_disable(dev);
 408         disp->fini(dev);
 409 }
 410
 411 static void
 412 nouveau_display_create_properties(struct drm_device *dev)
 413 {
 414         struct nouveau_display *disp = nouveau_display(dev);
 415         int gen;
 416
 417         if (disp->disp.oclass < NV50_DISP)
 418                 gen = 0;
 419         else
 420         if (disp->disp.oclass < GF110_DISP)
 421                 gen = 1;
 422         else
 423                 gen = 2;
 424
 425         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 426         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 427         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 428
 429         disp->underscan_hborder_property =
 430                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 431
 432         disp->underscan_vborder_property =
 433                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 434
 435         if (gen < 1)
 436                 return;
 437
 438         /* -90..+90 */
 439         disp->vibrant_hue_property =
 440                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 441
 442         /* -100..+100 */
 443         disp->color_vibrance_property =
 444                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 445 }
 446
 447 int
 448 nouveau_display_create(struct drm_device *dev)
 449 {
 450         struct nouveau_drm *drm = nouveau_drm(dev);
 451         struct nvkm_device *device = nvxx_device(&drm->device);
 452         struct nouveau_display *disp;
 453         int ret;
 454
 455         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 456         if (!disp)
 457                 return -ENOMEM;
 458
 459         drm_mode_config_init(dev);
 460         drm_mode_create_scaling_mode_property(dev);
 461         drm_mode_create_dvi_i_properties(dev);
 462
 463         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 464         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 465
 466         dev->mode_config.min_width = 0;
 467         dev->mode_config.min_height = 0;
 468         if (drm->device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 469                 dev->mode_config.max_width = 2048;
 470                 dev->mode_config.max_height = 2048;
 471         } else
 472         if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 473                 dev->mode_config.max_width = 4096;
 474                 dev->mode_config.max_height = 4096;
 475         } else
 476         if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 477                 dev->mode_config.max_width = 8192;
 478                 dev->mode_config.max_height = 8192;
 479         } else {
 480                 dev->mode_config.max_width = 16384;
 481                 dev->mode_config.max_height = 16384;
 482         }
 483
 484         dev->mode_config.preferred_depth = 24;
 485         dev->mode_config.prefer_shadow = 1;
 486
 487         if (drm->device.info.chipset < 0x11)
 488                 dev->mode_config.async_page_flip = false;
 489         else
 490                 dev->mode_config.async_page_flip = true;
 491
 492         drm_kms_helper_poll_init(dev);
 493         drm_kms_helper_poll_disable(dev);
 494
 495         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 496                 static const u16 oclass[] = {
 497                         GM204_DISP,
 498                         GM107_DISP,
 499                         GK110_DISP,
 500                         GK104_DISP,
 501                         GF110_DISP,
 502                         GT214_DISP,
 503                         GT206_DISP,
 504                         GT200_DISP,
 505                         G82_DISP,
 506                         NV50_DISP,
 507                         NV04_DISP,
 508                 };
 509                 int i;
 510
 511                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 512                         ret = nvif_object_init(&drm->device.object, 0,
 513                                                oclass[i], NULL, 0, &disp->disp);
 514                 }
 515
 516                 if (ret == 0) {
 517                         nouveau_display_create_properties(dev);
 518                         if (disp->disp.oclass < NV50_DISP)
 519                                 ret = nv04_display_create(dev);
 520                         else
 521                                 ret = nv50_display_create(dev);
 522                 }
 523         } else {
 524                 ret = 0;
 525         }
 526
 527         if (ret)
 528                 goto disp_create_err;
 529
 530         if (dev->mode_config.num_crtc) {
 531                 ret = nouveau_display_vblank_init(dev);
 532                 if (ret)
 533                         goto vblank_err;
 534         }
 535
 536         nouveau_backlight_init(dev);
 537         return 0;
 538
 539 vblank_err:
 540         disp->dtor(dev);
 541 disp_create_err:
 542         drm_kms_helper_poll_fini(dev);
 543         drm_mode_config_cleanup(dev);
 544         return ret;
 545 }
 546
 547 void
 548 nouveau_display_destroy(struct drm_device *dev)
 549 {
 550         struct nouveau_display *disp = nouveau_display(dev);
 551
 552         nouveau_backlight_exit(dev);
 553         nouveau_display_vblank_fini(dev);
 554
 555         drm_kms_helper_poll_fini(dev);
 556         drm_mode_config_cleanup(dev);
 557
 558         if (disp->dtor)
 559                 disp->dtor(dev);
 560
 561         nvif_object_fini(&disp->disp);
 562
 563         nouveau_drm(dev)->display = NULL;
 564         kfree(disp);
 565 }
 566
 567 int
 568 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 569 {
 570         struct drm_crtc *crtc;
 571
 572         nouveau_display_fini(dev);
 573
 574         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 575                 struct nouveau_framebuffer *nouveau_fb;
 576
 577                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 578                 if (!nouveau_fb || !nouveau_fb->nvbo)
 579                         continue;
 580
 581                 nouveau_bo_unpin(nouveau_fb->nvbo);
 582         }
 583
 584         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 585                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 586                 if (nv_crtc->cursor.nvbo) {
 587                         if (nv_crtc->cursor.set_offset)
 588                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 589                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 590                 }
 591         }
 592
 593         return 0;
 594 }
 595
 596 void
 597 nouveau_display_resume(struct drm_device *dev, bool runtime)
 598 {
 599         struct nouveau_drm *drm = nouveau_drm(dev);
 600         struct drm_crtc *crtc;
 601         int ret, head;
 602
 603         /* re-pin fb/cursors */
 604         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 605                 struct nouveau_framebuffer *nouveau_fb;
 606
 607                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 608                 if (!nouveau_fb || !nouveau_fb->nvbo)
 609                         continue;
 610
 611                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 612                 if (ret)
 613                         NV_ERROR(drm, "Could not pin framebuffer\n");
 614         }
 615
 616         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 617                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 618                 if (!nv_crtc->cursor.nvbo)
 619                         continue;
 620
 621                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 622                 if (!ret && nv_crtc->cursor.set_offset)
 623                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 624                 if (ret)
 625                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 626         }
 627
 628         nouveau_display_init(dev);
 629
 630         /* Force CLUT to get re-loaded during modeset */
 631         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 632                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 633
 634                 nv_crtc->lut.depth = 0;
 635         }
 636
 637         /* Make sure that drm and hw vblank irqs get resumed if needed. */
 638         for (head = 0; head < dev->mode_config.num_crtc; head++)
 639                 drm_vblank_on(dev, head);
 640
 641         /* This should ensure we don't hit a locking problem when someone
 642          * wakes us up via a connector.  We should never go into suspend
 643          * while the display is on anyways.
 644          */
 645         if (runtime)
 646                 return;
 647
 648         drm_helper_resume_force_mode(dev);
 649
 650         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 651                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 652
 653                 if (!nv_crtc->cursor.nvbo)
 654                         continue;
 655
 656                 if (nv_crtc->cursor.set_offset)
 657                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 658                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 659                                                  nv_crtc->cursor_saved_y);
 660         }
 661 }
 662
 663 static int
 664 nouveau_page_flip_emit(struct nouveau_channel *chan,
 665                        struct nouveau_bo *old_bo,
 666                        struct nouveau_bo *new_bo,
 667                        struct nouveau_page_flip_state *s,
 668                        struct nouveau_fence **pfence)
 669 {
 670         struct nouveau_fence_chan *fctx = chan->fence;
 671         struct nouveau_drm *drm = chan->drm;
 672         struct drm_device *dev = drm->dev;
 673         unsigned long flags;
 674         int ret;
 675
 676         /* Queue it to the pending list */
 677         spin_lock_irqsave(&dev->event_lock, flags);
 678         list_add_tail(&s->head, &fctx->flip);
 679         spin_unlock_irqrestore(&dev->event_lock, flags);
 680
 681         /* Synchronize with the old framebuffer */
 682         ret = nouveau_fence_sync(old_bo, chan, false, false);
 683         if (ret)
 684                 goto fail;
 685
 686         /* Emit the pageflip */
 687         ret = RING_SPACE(chan, 2);
 688         if (ret)
 689                 goto fail;
 690
 691         if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI)
 692                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 693         else
 694                 BEGIN_NVC0(chan, FermiSw, NV_SW_PAGE_FLIP, 1);
 695         OUT_RING  (chan, 0x00000000);
 696         FIRE_RING (chan);
 697
 698         ret = nouveau_fence_new(chan, false, pfence);
 699         if (ret)
 700                 goto fail;
 701
 702         return 0;
 703 fail:
 704         spin_lock_irqsave(&dev->event_lock, flags);
 705         list_del(&s->head);
 706         spin_unlock_irqrestore(&dev->event_lock, flags);
 707         return ret;
 708 }
 709
 710 int
 711 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 712                        struct drm_pending_vblank_event *event, u32 flags)
 713 {
 714         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 715         struct drm_device *dev = crtc->dev;
 716         struct nouveau_drm *drm = nouveau_drm(dev);
 717         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 718         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 719         struct nouveau_page_flip_state *s;
 720         struct nouveau_channel *chan;
 721         struct nouveau_cli *cli;
 722         struct nouveau_fence *fence;
 723         int ret;
 724
 725         chan = drm->channel;
 726         if (!chan)
 727                 return -ENODEV;
 728         cli = (void *)chan->user.client;
 729
 730         s = kzalloc(sizeof(*s), GFP_KERNEL);
 731         if (!s)
 732                 return -ENOMEM;
 733
 734         if (new_bo != old_bo) {
 735                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 736                 if (ret)
 737                         goto fail_free;
 738         }
 739
 740         mutex_lock(&cli->mutex);
 741         ret = ttm_bo_reserve(&new_bo->bo, true, false, false, NULL);
 742         if (ret)
 743                 goto fail_unpin;
 744
 745         /* synchronise rendering channel with the kernel's channel */
 746         ret = nouveau_fence_sync(new_bo, chan, false, true);
 747         if (ret) {
 748                 ttm_bo_unreserve(&new_bo->bo);
 749                 goto fail_unpin;
 750         }
 751
 752         if (new_bo != old_bo) {
 753                 ttm_bo_unreserve(&new_bo->bo);
 754
 755                 ret = ttm_bo_reserve(&old_bo->bo, true, false, false, NULL);
 756                 if (ret)
 757                         goto fail_unpin;
 758         }
 759
 760         /* Initialize a page flip struct */
 761         *s = (struct nouveau_page_flip_state)
 762                 { { }, event, nouveau_crtc(crtc)->index,
 763                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 764                   new_bo->bo.offset };
 765
 766         /* Keep vblanks on during flip, for the target crtc of this flip */
 767         drm_vblank_get(dev, nouveau_crtc(crtc)->index);
 768
 769         /* Emit a page flip */
 770         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 771                 ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
 772                 if (ret)
 773                         goto fail_unreserve;
 774         } else {
 775                 struct nv04_display *dispnv04 = nv04_display(dev);
 776                 int head = nouveau_crtc(crtc)->index;
 777
 778                 if (swap_interval) {
 779                         ret = RING_SPACE(chan, 8);
 780                         if (ret)
 781                                 goto fail_unreserve;
 782
 783                         BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 784                         OUT_RING  (chan, 0);
 785                         BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 786                         OUT_RING  (chan, head);
 787                         BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 788                         OUT_RING  (chan, 0);
 789                         BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 790                         OUT_RING  (chan, 0);
 791                 }
 792
 793                 nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 794         }
 795
 796         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 797         if (ret)
 798                 goto fail_unreserve;
 799         mutex_unlock(&cli->mutex);
 800
 801         /* Update the crtc struct and cleanup */
 802         crtc->primary->fb = fb;
 803
 804         nouveau_bo_fence(old_bo, fence, false);
 805         ttm_bo_unreserve(&old_bo->bo);
 806         if (old_bo != new_bo)
 807                 nouveau_bo_unpin(old_bo);
 808         nouveau_fence_unref(&fence);
 809         return 0;
 810
 811 fail_unreserve:
 812         drm_vblank_put(dev, nouveau_crtc(crtc)->index);
 813         ttm_bo_unreserve(&old_bo->bo);
 814 fail_unpin:
 815         mutex_unlock(&cli->mutex);
 816         if (old_bo != new_bo)
 817                 nouveau_bo_unpin(new_bo);
 818 fail_free:
 819         kfree(s);
 820         return ret;
 821 }
 822
 823 int
 824 nouveau_finish_page_flip(struct nouveau_channel *chan,
 825                          struct nouveau_page_flip_state *ps)
 826 {
 827         struct nouveau_fence_chan *fctx = chan->fence;
 828         struct nouveau_drm *drm = chan->drm;
 829         struct drm_device *dev = drm->dev;
 830         struct nouveau_page_flip_state *s;
 831         unsigned long flags;
 832
 833         spin_lock_irqsave(&dev->event_lock, flags);
 834
 835         if (list_empty(&fctx->flip)) {
 836                 NV_ERROR(drm, "unexpected pageflip\n");
 837                 spin_unlock_irqrestore(&dev->event_lock, flags);
 838                 return -EINVAL;
 839         }
 840
 841         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 842         if (s->event) {
 843                 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 844                         drm_arm_vblank_event(dev, s->crtc, s->event);
 845                 } else {
 846                         drm_send_vblank_event(dev, s->crtc, s->event);
 847
 848                         /* Give up ownership of vblank for page-flipped crtc */
 849                         drm_vblank_put(dev, s->crtc);
 850                 }
 851         }
 852         else {
 853                 /* Give up ownership of vblank for page-flipped crtc */
 854                 drm_vblank_put(dev, s->crtc);
 855         }
 856
 857         list_del(&s->head);
 858         if (ps)
 859                 *ps = *s;
 860         kfree(s);
 861
 862         spin_unlock_irqrestore(&dev->event_lock, flags);
 863         return 0;
 864 }
 865
 866 int
 867 nouveau_flip_complete(struct nvif_notify *notify)
 868 {
 869         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
 870         struct nouveau_channel *chan = drm->channel;
 871         struct nouveau_page_flip_state state;
 872
 873         if (!nouveau_finish_page_flip(chan, &state)) {
 874                 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 875                         nv_set_crtc_base(drm->dev, state.crtc, state.offset +
 876                                          state.y * state.pitch +
 877                                          state.x * state.bpp / 8);
 878                 }
 879         }
 880
 881         return NVIF_NOTIFY_KEEP;
 882 }
 883
 884 int
 885 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 886                             struct drm_mode_create_dumb *args)
 887 {
 888         struct nouveau_bo *bo;
 889         uint32_t domain;
 890         int ret;
 891
 892         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 893         args->size = args->pitch * args->height;
 894         args->size = roundup(args->size, PAGE_SIZE);
 895
 896         /* Use VRAM if there is any ; otherwise fallback to system memory */
 897         if (nouveau_drm(dev)->device.info.ram_size != 0)
 898                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 899         else
 900                 domain = NOUVEAU_GEM_DOMAIN_GART;
 901
 902         ret = nouveau_gem_new(dev, args->size, 0, domain, 0, 0, &bo);
 903         if (ret)
 904                 return ret;
 905
 906         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 907         drm_gem_object_unreference_unlocked(&bo->gem);
 908         return ret;
 909 }
 910
 911 int
 912 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 913                                 struct drm_device *dev,
 914                                 uint32_t handle, uint64_t *poffset)
 915 {
 916         struct drm_gem_object *gem;
 917
 918         gem = drm_gem_object_lookup(dev, file_priv, handle);
 919         if (gem) {
 920                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 921                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
 922                 drm_gem_object_unreference_unlocked(gem);
 923                 return 0;
 924         }
 925
 926         return -ENOENT;
 927 }