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                 dev->mode_config.max_width = 8192;
 474                 dev->mode_config.max_height = 8192;
 475         }
 476
 477         dev->mode_config.preferred_depth = 24;
 478         dev->mode_config.prefer_shadow = 1;
 479
 480         if (drm->device.info.chipset < 0x11)
 481                 dev->mode_config.async_page_flip = false;
 482         else
 483                 dev->mode_config.async_page_flip = true;
 484
 485         drm_kms_helper_poll_init(dev);
 486         drm_kms_helper_poll_disable(dev);
 487
 488         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 489                 static const u16 oclass[] = {
 490                         GM204_DISP,
 491                         GM107_DISP,
 492                         GK110_DISP,
 493                         GK104_DISP,
 494                         GF110_DISP,
 495                         GT214_DISP,
 496                         GT206_DISP,
 497                         GT200_DISP,
 498                         G82_DISP,
 499                         NV50_DISP,
 500                         NV04_DISP,
 501                 };
 502                 int i;
 503
 504                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 505                         ret = nvif_object_init(&drm->device.object,
 506                                                NVDRM_DISPLAY, oclass[i],
 507                                                NULL, 0, &disp->disp);
 508                 }
 509
 510                 if (ret == 0) {
 511                         nouveau_display_create_properties(dev);
 512                         if (disp->disp.oclass < NV50_DISP)
 513                                 ret = nv04_display_create(dev);
 514                         else
 515                                 ret = nv50_display_create(dev);
 516                 }
 517         } else {
 518                 ret = 0;
 519         }
 520
 521         if (ret)
 522                 goto disp_create_err;
 523
 524         if (dev->mode_config.num_crtc) {
 525                 ret = nouveau_display_vblank_init(dev);
 526                 if (ret)
 527                         goto vblank_err;
 528         }
 529
 530         nouveau_backlight_init(dev);
 531         return 0;
 532
 533 vblank_err:
 534         disp->dtor(dev);
 535 disp_create_err:
 536         drm_kms_helper_poll_fini(dev);
 537         drm_mode_config_cleanup(dev);
 538         return ret;
 539 }
 540
 541 void
 542 nouveau_display_destroy(struct drm_device *dev)
 543 {
 544         struct nouveau_display *disp = nouveau_display(dev);
 545
 546         nouveau_backlight_exit(dev);
 547         nouveau_display_vblank_fini(dev);
 548
 549         drm_kms_helper_poll_fini(dev);
 550         drm_mode_config_cleanup(dev);
 551
 552         if (disp->dtor)
 553                 disp->dtor(dev);
 554
 555         nvif_object_fini(&disp->disp);
 556
 557         nouveau_drm(dev)->display = NULL;
 558         kfree(disp);
 559 }
 560
 561 int
 562 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 563 {
 564         struct drm_crtc *crtc;
 565
 566         nouveau_display_fini(dev);
 567
 568         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 569                 struct nouveau_framebuffer *nouveau_fb;
 570
 571                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 572                 if (!nouveau_fb || !nouveau_fb->nvbo)
 573                         continue;
 574
 575                 nouveau_bo_unpin(nouveau_fb->nvbo);
 576         }
 577
 578         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 579                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 580                 if (nv_crtc->cursor.nvbo) {
 581                         if (nv_crtc->cursor.set_offset)
 582                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 583                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 584                 }
 585         }
 586
 587         return 0;
 588 }
 589
 590 void
 591 nouveau_display_resume(struct drm_device *dev, bool runtime)
 592 {
 593         struct nouveau_drm *drm = nouveau_drm(dev);
 594         struct drm_crtc *crtc;
 595         int ret, head;
 596
 597         /* re-pin fb/cursors */
 598         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 599                 struct nouveau_framebuffer *nouveau_fb;
 600
 601                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 602                 if (!nouveau_fb || !nouveau_fb->nvbo)
 603                         continue;
 604
 605                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 606                 if (ret)
 607                         NV_ERROR(drm, "Could not pin framebuffer\n");
 608         }
 609
 610         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 611                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 612                 if (!nv_crtc->cursor.nvbo)
 613                         continue;
 614
 615                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 616                 if (!ret && nv_crtc->cursor.set_offset)
 617                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 618                 if (ret)
 619                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 620         }
 621
 622         nouveau_display_init(dev);
 623
 624         /* Force CLUT to get re-loaded during modeset */
 625         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 626                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 627
 628                 nv_crtc->lut.depth = 0;
 629         }
 630
 631         /* Make sure that drm and hw vblank irqs get resumed if needed. */
 632         for (head = 0; head < dev->mode_config.num_crtc; head++)
 633                 drm_vblank_on(dev, head);
 634
 635         /* This should ensure we don't hit a locking problem when someone
 636          * wakes us up via a connector.  We should never go into suspend
 637          * while the display is on anyways.
 638          */
 639         if (runtime)
 640                 return;
 641
 642         drm_helper_resume_force_mode(dev);
 643
 644         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 645                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 646
 647                 if (!nv_crtc->cursor.nvbo)
 648                         continue;
 649
 650                 if (nv_crtc->cursor.set_offset)
 651                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 652                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 653                                                  nv_crtc->cursor_saved_y);
 654         }
 655 }
 656
 657 static int
 658 nouveau_page_flip_emit(struct nouveau_channel *chan,
 659                        struct nouveau_bo *old_bo,
 660                        struct nouveau_bo *new_bo,
 661                        struct nouveau_page_flip_state *s,
 662                        struct nouveau_fence **pfence)
 663 {
 664         struct nouveau_fence_chan *fctx = chan->fence;
 665         struct nouveau_drm *drm = chan->drm;
 666         struct drm_device *dev = drm->dev;
 667         unsigned long flags;
 668         int ret;
 669
 670         /* Queue it to the pending list */
 671         spin_lock_irqsave(&dev->event_lock, flags);
 672         list_add_tail(&s->head, &fctx->flip);
 673         spin_unlock_irqrestore(&dev->event_lock, flags);
 674
 675         /* Synchronize with the old framebuffer */
 676         ret = nouveau_fence_sync(old_bo, chan, false, false);
 677         if (ret)
 678                 goto fail;
 679
 680         /* Emit the pageflip */
 681         ret = RING_SPACE(chan, 2);
 682         if (ret)
 683                 goto fail;
 684
 685         if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI)
 686                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 687         else
 688                 BEGIN_NVC0(chan, FermiSw, NV_SW_PAGE_FLIP, 1);
 689         OUT_RING  (chan, 0x00000000);
 690         FIRE_RING (chan);
 691
 692         ret = nouveau_fence_new(chan, false, pfence);
 693         if (ret)
 694                 goto fail;
 695
 696         return 0;
 697 fail:
 698         spin_lock_irqsave(&dev->event_lock, flags);
 699         list_del(&s->head);
 700         spin_unlock_irqrestore(&dev->event_lock, flags);
 701         return ret;
 702 }
 703
 704 int
 705 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 706                        struct drm_pending_vblank_event *event, u32 flags)
 707 {
 708         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 709         struct drm_device *dev = crtc->dev;
 710         struct nouveau_drm *drm = nouveau_drm(dev);
 711         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 712         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 713         struct nouveau_page_flip_state *s;
 714         struct nouveau_channel *chan;
 715         struct nouveau_cli *cli;
 716         struct nouveau_fence *fence;
 717         int ret;
 718
 719         chan = drm->channel;
 720         if (!chan)
 721                 return -ENODEV;
 722         cli = (void *)chan->user.client;
 723
 724         s = kzalloc(sizeof(*s), GFP_KERNEL);
 725         if (!s)
 726                 return -ENOMEM;
 727
 728         if (new_bo != old_bo) {
 729                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 730                 if (ret)
 731                         goto fail_free;
 732         }
 733
 734         mutex_lock(&cli->mutex);
 735         ret = ttm_bo_reserve(&new_bo->bo, true, false, false, NULL);
 736         if (ret)
 737                 goto fail_unpin;
 738
 739         /* synchronise rendering channel with the kernel's channel */
 740         ret = nouveau_fence_sync(new_bo, chan, false, true);
 741         if (ret) {
 742                 ttm_bo_unreserve(&new_bo->bo);
 743                 goto fail_unpin;
 744         }
 745
 746         if (new_bo != old_bo) {
 747                 ttm_bo_unreserve(&new_bo->bo);
 748
 749                 ret = ttm_bo_reserve(&old_bo->bo, true, false, false, NULL);
 750                 if (ret)
 751                         goto fail_unpin;
 752         }
 753
 754         /* Initialize a page flip struct */
 755         *s = (struct nouveau_page_flip_state)
 756                 { { }, event, nouveau_crtc(crtc)->index,
 757                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 758                   new_bo->bo.offset };
 759
 760         /* Keep vblanks on during flip, for the target crtc of this flip */
 761         drm_vblank_get(dev, nouveau_crtc(crtc)->index);
 762
 763         /* Emit a page flip */
 764         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 765                 ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
 766                 if (ret)
 767                         goto fail_unreserve;
 768         } else {
 769                 struct nv04_display *dispnv04 = nv04_display(dev);
 770                 int head = nouveau_crtc(crtc)->index;
 771
 772                 if (swap_interval) {
 773                         ret = RING_SPACE(chan, 8);
 774                         if (ret)
 775                                 goto fail_unreserve;
 776
 777                         BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 778                         OUT_RING  (chan, 0);
 779                         BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 780                         OUT_RING  (chan, head);
 781                         BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 782                         OUT_RING  (chan, 0);
 783                         BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 784                         OUT_RING  (chan, 0);
 785                 }
 786
 787                 nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 788         }
 789
 790         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 791         if (ret)
 792                 goto fail_unreserve;
 793         mutex_unlock(&cli->mutex);
 794
 795         /* Update the crtc struct and cleanup */
 796         crtc->primary->fb = fb;
 797
 798         nouveau_bo_fence(old_bo, fence, false);
 799         ttm_bo_unreserve(&old_bo->bo);
 800         if (old_bo != new_bo)
 801                 nouveau_bo_unpin(old_bo);
 802         nouveau_fence_unref(&fence);
 803         return 0;
 804
 805 fail_unreserve:
 806         drm_vblank_put(dev, nouveau_crtc(crtc)->index);
 807         ttm_bo_unreserve(&old_bo->bo);
 808 fail_unpin:
 809         mutex_unlock(&cli->mutex);
 810         if (old_bo != new_bo)
 811                 nouveau_bo_unpin(new_bo);
 812 fail_free:
 813         kfree(s);
 814         return ret;
 815 }
 816
 817 int
 818 nouveau_finish_page_flip(struct nouveau_channel *chan,
 819                          struct nouveau_page_flip_state *ps)
 820 {
 821         struct nouveau_fence_chan *fctx = chan->fence;
 822         struct nouveau_drm *drm = chan->drm;
 823         struct drm_device *dev = drm->dev;
 824         struct nouveau_page_flip_state *s;
 825         unsigned long flags;
 826         int crtcid = -1;
 827
 828         spin_lock_irqsave(&dev->event_lock, flags);
 829
 830         if (list_empty(&fctx->flip)) {
 831                 NV_ERROR(drm, "unexpected pageflip\n");
 832                 spin_unlock_irqrestore(&dev->event_lock, flags);
 833                 return -EINVAL;
 834         }
 835
 836         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 837         if (s->event) {
 838                 /* Vblank timestamps/counts are only correct on >= NV-50 */
 839                 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
 840                         crtcid = s->crtc;
 841
 842                 drm_send_vblank_event(dev, crtcid, s->event);
 843         }
 844
 845         /* Give up ownership of vblank for page-flipped crtc */
 846         drm_vblank_put(dev, s->crtc);
 847
 848         list_del(&s->head);
 849         if (ps)
 850                 *ps = *s;
 851         kfree(s);
 852
 853         spin_unlock_irqrestore(&dev->event_lock, flags);
 854         return 0;
 855 }
 856
 857 int
 858 nouveau_flip_complete(struct nvif_notify *notify)
 859 {
 860         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
 861         struct nouveau_channel *chan = drm->channel;
 862         struct nouveau_page_flip_state state;
 863
 864         if (!nouveau_finish_page_flip(chan, &state)) {
 865                 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 866                         nv_set_crtc_base(drm->dev, state.crtc, state.offset +
 867                                          state.y * state.pitch +
 868                                          state.x * state.bpp / 8);
 869                 }
 870         }
 871
 872         return NVIF_NOTIFY_KEEP;
 873 }
 874
 875 int
 876 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 877                             struct drm_mode_create_dumb *args)
 878 {
 879         struct nouveau_bo *bo;
 880         uint32_t domain;
 881         int ret;
 882
 883         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 884         args->size = args->pitch * args->height;
 885         args->size = roundup(args->size, PAGE_SIZE);
 886
 887         /* Use VRAM if there is any ; otherwise fallback to system memory */
 888         if (nouveau_drm(dev)->device.info.ram_size != 0)
 889                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 890         else
 891                 domain = NOUVEAU_GEM_DOMAIN_GART;
 892
 893         ret = nouveau_gem_new(dev, args->size, 0, domain, 0, 0, &bo);
 894         if (ret)
 895                 return ret;
 896
 897         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 898         drm_gem_object_unreference_unlocked(&bo->gem);
 899         return ret;
 900 }
 901
 902 int
 903 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 904                                 struct drm_device *dev,
 905                                 uint32_t handle, uint64_t *poffset)
 906 {
 907         struct drm_gem_object *gem;
 908
 909         gem = drm_gem_object_lookup(dev, file_priv, handle);
 910         if (gem) {
 911                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 912                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
 913                 drm_gem_object_unreference_unlocked(gem);
 914                 return 0;
 915         }
 916
 917         return -ENOENT;
 918 }