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