Pileus Git - ~andy/linux/blob - 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 "nouveau_fbcon.h"
  31 #include "dispnv04/hw.h"
  32 #include "nouveau_crtc.h"
  33 #include "nouveau_dma.h"
  34 #include "nouveau_gem.h"
  35 #include "nouveau_connector.h"
  36 #include "nv50_display.h"
  37
  38 #include "nouveau_fence.h"
  39
  40 #include <engine/disp.h>
  41
  42 #include <core/class.h>
  43
  44 static int
  45 nouveau_display_vblank_handler(void *data, int head)
  46 {
  47         struct nouveau_drm *drm = data;
  48         drm_handle_vblank(drm->dev, head);
  49         return NVKM_EVENT_KEEP;
  50 }
  51
  52 int
  53 nouveau_display_vblank_enable(struct drm_device *dev, int head)
  54 {
  55         struct nouveau_display *disp = nouveau_display(dev);
  56         if (disp) {
  57                 nouveau_event_get(disp->vblank[head]);
  58                 return 0;
  59         }
  60         return -EIO;
  61 }
  62
  63 void
  64 nouveau_display_vblank_disable(struct drm_device *dev, int head)
  65 {
  66         struct nouveau_display *disp = nouveau_display(dev);
  67         if (disp)
  68                 nouveau_event_put(disp->vblank[head]);
  69 }
  70
  71 static inline int
  72 calc(int blanks, int blanke, int total, int line)
  73 {
  74         if (blanke >= blanks) {
  75                 if (line >= blanks)
  76                         line -= total;
  77         } else {
  78                 if (line >= blanks)
  79                         line -= total;
  80                 line -= blanke + 1;
  81         }
  82         return line;
  83 }
  84
  85 int
  86 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
  87                                 ktime_t *stime, ktime_t *etime)
  88 {
  89         const u32 mthd = NV04_DISP_SCANOUTPOS + nouveau_crtc(crtc)->index;
  90         struct nouveau_display *disp = nouveau_display(crtc->dev);
  91         struct nv04_display_scanoutpos args;
  92         int ret, retry = 1;
  93
  94         do {
  95                 ret = nv_exec(disp->core, mthd, &args, sizeof(args));
  96                 if (ret != 0)
  97                         return 0;
  98
  99                 if (args.vline) {
 100                         ret |= DRM_SCANOUTPOS_ACCURATE;
 101                         ret |= DRM_SCANOUTPOS_VALID;
 102                         break;
 103                 }
 104
 105                 if (retry) ndelay(crtc->linedur_ns);
 106         } while (retry--);
 107
 108         *hpos = calc(args.hblanks, args.hblanke, args.htotal, args.hline);
 109         *vpos = calc(args.vblanks, args.vblanke, args.vtotal, args.vline);
 110         if (stime) *stime = ns_to_ktime(args.time[0]);
 111         if (etime) *etime = ns_to_ktime(args.time[1]);
 112
 113         if (*vpos < 0)
 114                 ret |= DRM_SCANOUTPOS_INVBL;
 115         return ret;
 116 }
 117
 118 int
 119 nouveau_display_scanoutpos(struct drm_device *dev, int head, unsigned int flags,
 120                            int *vpos, int *hpos, ktime_t *stime, ktime_t *etime)
 121 {
 122         struct drm_crtc *crtc;
 123
 124         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 125                 if (nouveau_crtc(crtc)->index == head) {
 126                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 127                                                                stime, etime);
 128                 }
 129         }
 130
 131         return 0;
 132 }
 133
 134 int
 135 nouveau_display_vblstamp(struct drm_device *dev, int head, int *max_error,
 136                          struct timeval *time, unsigned flags)
 137 {
 138         struct drm_crtc *crtc;
 139
 140         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 141                 if (nouveau_crtc(crtc)->index == head) {
 142                         return drm_calc_vbltimestamp_from_scanoutpos(dev,
 143                                         head, max_error, time, flags, crtc,
 144                                         &crtc->hwmode);
 145                 }
 146         }
 147
 148         return -EINVAL;
 149 }
 150
 151 static void
 152 nouveau_display_vblank_fini(struct drm_device *dev)
 153 {
 154         struct nouveau_display *disp = nouveau_display(dev);
 155         int i;
 156
 157         drm_vblank_cleanup(dev);
 158
 159         if (disp->vblank) {
 160                 for (i = 0; i < dev->mode_config.num_crtc; i++)
 161                         nouveau_event_ref(NULL, &disp->vblank[i]);
 162                 kfree(disp->vblank);
 163                 disp->vblank = NULL;
 164         }
 165 }
 166
 167 static int
 168 nouveau_display_vblank_init(struct drm_device *dev)
 169 {
 170         struct nouveau_display *disp = nouveau_display(dev);
 171         struct nouveau_drm *drm = nouveau_drm(dev);
 172         struct nouveau_disp *pdisp = nouveau_disp(drm->device);
 173         int ret, i;
 174
 175         disp->vblank = kzalloc(dev->mode_config.num_crtc *
 176                                sizeof(*disp->vblank), GFP_KERNEL);
 177         if (!disp->vblank)
 178                 return -ENOMEM;
 179
 180         for (i = 0; i < dev->mode_config.num_crtc; i++) {
 181                 ret = nouveau_event_new(pdisp->vblank, i,
 182                                         nouveau_display_vblank_handler,
 183                                         drm, &disp->vblank[i]);
 184                 if (ret) {
 185                         nouveau_display_vblank_fini(dev);
 186                         return ret;
 187                 }
 188         }
 189
 190         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 191         if (ret) {
 192                 nouveau_display_vblank_fini(dev);
 193                 return ret;
 194         }
 195
 196         return 0;
 197 }
 198
 199 static void
 200 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 201 {
 202         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 203
 204         if (fb->nvbo)
 205                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 206
 207         drm_framebuffer_cleanup(drm_fb);
 208         kfree(fb);
 209 }
 210
 211 static int
 212 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 213                                        struct drm_file *file_priv,
 214                                        unsigned int *handle)
 215 {
 216         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 217
 218         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 219 }
 220
 221 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 222         .destroy = nouveau_user_framebuffer_destroy,
 223         .create_handle = nouveau_user_framebuffer_create_handle,
 224 };
 225
 226 int
 227 nouveau_framebuffer_init(struct drm_device *dev,
 228                          struct nouveau_framebuffer *nv_fb,
 229                          struct drm_mode_fb_cmd2 *mode_cmd,
 230                          struct nouveau_bo *nvbo)
 231 {
 232         struct nouveau_drm *drm = nouveau_drm(dev);
 233         struct drm_framebuffer *fb = &nv_fb->base;
 234         int ret;
 235
 236         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
 237         nv_fb->nvbo = nvbo;
 238
 239         if (nv_device(drm->device)->card_type >= NV_50) {
 240                 u32 tile_flags = nouveau_bo_tile_layout(nvbo);
 241                 if (tile_flags == 0x7a00 ||
 242                     tile_flags == 0xfe00)
 243                         nv_fb->r_dma = NvEvoFB32;
 244                 else
 245                 if (tile_flags == 0x7000)
 246                         nv_fb->r_dma = NvEvoFB16;
 247                 else
 248                         nv_fb->r_dma = NvEvoVRAM_LP;
 249
 250                 switch (fb->depth) {
 251                 case  8: nv_fb->r_format = 0x1e00; break;
 252                 case 15: nv_fb->r_format = 0xe900; break;
 253                 case 16: nv_fb->r_format = 0xe800; break;
 254                 case 24:
 255                 case 32: nv_fb->r_format = 0xcf00; break;
 256                 case 30: nv_fb->r_format = 0xd100; break;
 257                 default:
 258                          NV_ERROR(drm, "unknown depth %d\n", fb->depth);
 259                          return -EINVAL;
 260                 }
 261
 262                 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) {
 263                         NV_ERROR(drm, "framebuffer requires contiguous bo\n");
 264                         return -EINVAL;
 265                 }
 266
 267                 if (nv_device(drm->device)->chipset == 0x50)
 268                         nv_fb->r_format |= (tile_flags << 8);
 269
 270                 if (!tile_flags) {
 271                         if (nv_device(drm->device)->card_type < NV_D0)
 272                                 nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
 273                         else
 274                                 nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
 275                 } else {
 276                         u32 mode = nvbo->tile_mode;
 277                         if (nv_device(drm->device)->card_type >= NV_C0)
 278                                 mode >>= 4;
 279                         nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
 280                 }
 281         }
 282
 283         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 284         if (ret) {
 285                 return ret;
 286         }
 287
 288         return 0;
 289 }
 290
 291 static struct drm_framebuffer *
 292 nouveau_user_framebuffer_create(struct drm_device *dev,
 293                                 struct drm_file *file_priv,
 294                                 struct drm_mode_fb_cmd2 *mode_cmd)
 295 {
 296         struct nouveau_framebuffer *nouveau_fb;
 297         struct drm_gem_object *gem;
 298         int ret = -ENOMEM;
 299
 300         gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 301         if (!gem)
 302                 return ERR_PTR(-ENOENT);
 303
 304         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 305         if (!nouveau_fb)
 306                 goto err_unref;
 307
 308         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 309         if (ret)
 310                 goto err;
 311
 312         return &nouveau_fb->base;
 313
 314 err:
 315         kfree(nouveau_fb);
 316 err_unref:
 317         drm_gem_object_unreference(gem);
 318         return ERR_PTR(ret);
 319 }
 320
 321 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 322         .fb_create = nouveau_user_framebuffer_create,
 323         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 324 };
 325
 326
 327 struct nouveau_drm_prop_enum_list {
 328         u8 gen_mask;
 329         int type;
 330         char *name;
 331 };
 332
 333 static struct nouveau_drm_prop_enum_list underscan[] = {
 334         { 6, UNDERSCAN_AUTO, "auto" },
 335         { 6, UNDERSCAN_OFF, "off" },
 336         { 6, UNDERSCAN_ON, "on" },
 337         {}
 338 };
 339
 340 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 341         { 7, DITHERING_MODE_AUTO, "auto" },
 342         { 7, DITHERING_MODE_OFF, "off" },
 343         { 1, DITHERING_MODE_ON, "on" },
 344         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 345         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 346         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 347         {}
 348 };
 349
 350 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 351         { 6, DITHERING_DEPTH_AUTO, "auto" },
 352         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 353         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 354         {}
 355 };
 356
 357 #define PROP_ENUM(p,gen,n,list) do {                                           \
 358         struct nouveau_drm_prop_enum_list *l = (list);                         \
 359         int c = 0;                                                             \
 360         while (l->gen_mask) {                                                  \
 361                 if (l->gen_mask & (1 << (gen)))                                \
 362                         c++;                                                   \
 363                 l++;                                                           \
 364         }                                                                      \
 365         if (c) {                                                               \
 366                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 367                 l = (list);                                                    \
 368                 c = 0;                                                         \
 369                 while (p && l->gen_mask) {                                     \
 370                         if (l->gen_mask & (1 << (gen))) {                      \
 371                                 drm_property_add_enum(p, c, l->type, l->name); \
 372                                 c++;                                           \
 373                         }                                                      \
 374                         l++;                                                   \
 375                 }                                                              \
 376         }                                                                      \
 377 } while(0)
 378
 379 int
 380 nouveau_display_init(struct drm_device *dev)
 381 {
 382         struct nouveau_display *disp = nouveau_display(dev);
 383         struct drm_connector *connector;
 384         int ret;
 385
 386         ret = disp->init(dev);
 387         if (ret)
 388                 return ret;
 389
 390         /* enable polling for external displays */
 391         drm_kms_helper_poll_enable(dev);
 392
 393         /* enable hotplug interrupts */
 394         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 395                 struct nouveau_connector *conn = nouveau_connector(connector);
 396                 if (conn->hpd_func) nouveau_event_get(conn->hpd_func);
 397         }
 398
 399         return ret;
 400 }
 401
 402 void
 403 nouveau_display_fini(struct drm_device *dev)
 404 {
 405         struct nouveau_display *disp = nouveau_display(dev);
 406         struct drm_connector *connector;
 407
 408         /* disable hotplug interrupts */
 409         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 410                 struct nouveau_connector *conn = nouveau_connector(connector);
 411                 if (conn->hpd_func) nouveau_event_put(conn->hpd_func);
 412         }
 413
 414         drm_kms_helper_poll_disable(dev);
 415         disp->fini(dev);
 416 }
 417
 418 int
 419 nouveau_display_create(struct drm_device *dev)
 420 {
 421         struct nouveau_drm *drm = nouveau_drm(dev);
 422         struct nouveau_display *disp;
 423         int ret, gen;
 424
 425         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 426         if (!disp)
 427                 return -ENOMEM;
 428
 429         drm_mode_config_init(dev);
 430         drm_mode_create_scaling_mode_property(dev);
 431         drm_mode_create_dvi_i_properties(dev);
 432
 433         if (nv_device(drm->device)->card_type < NV_50)
 434                 gen = 0;
 435         else
 436         if (nv_device(drm->device)->card_type < NV_D0)
 437                 gen = 1;
 438         else
 439                 gen = 2;
 440
 441         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 442         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 443         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 444
 445         disp->underscan_hborder_property =
 446                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 447
 448         disp->underscan_vborder_property =
 449                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 450
 451         if (gen >= 1) {
 452                 /* -90..+90 */
 453                 disp->vibrant_hue_property =
 454                         drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 455
 456                 /* -100..+100 */
 457                 disp->color_vibrance_property =
 458                         drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 459         }
 460
 461         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 462         dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
 463
 464         dev->mode_config.min_width = 0;
 465         dev->mode_config.min_height = 0;
 466         if (nv_device(drm->device)->card_type < NV_10) {
 467                 dev->mode_config.max_width = 2048;
 468                 dev->mode_config.max_height = 2048;
 469         } else
 470         if (nv_device(drm->device)->card_type < NV_50) {
 471                 dev->mode_config.max_width = 4096;
 472                 dev->mode_config.max_height = 4096;
 473         } else {
 474                 dev->mode_config.max_width = 8192;
 475                 dev->mode_config.max_height = 8192;
 476         }
 477
 478         dev->mode_config.preferred_depth = 24;
 479         dev->mode_config.prefer_shadow = 1;
 480
 481         if (nv_device(drm->device)->chipset < 0x11)
 482                 dev->mode_config.async_page_flip = false;
 483         else
 484                 dev->mode_config.async_page_flip = true;
 485
 486         drm_kms_helper_poll_init(dev);
 487         drm_kms_helper_poll_disable(dev);
 488
 489         if (drm->vbios.dcb.entries) {
 490                 static const u16 oclass[] = {
 491                         NVF0_DISP_CLASS,
 492                         NVE0_DISP_CLASS,
 493                         NVD0_DISP_CLASS,
 494                         NVA3_DISP_CLASS,
 495                         NV94_DISP_CLASS,
 496                         NVA0_DISP_CLASS,
 497                         NV84_DISP_CLASS,
 498                         NV50_DISP_CLASS,
 499                         NV04_DISP_CLASS,
 500                 };
 501                 int i;
 502
 503                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 504                         ret = nouveau_object_new(nv_object(drm), NVDRM_DEVICE,
 505                                                  NVDRM_DISPLAY, oclass[i],
 506                                                  NULL, 0, &disp->core);
 507                 }
 508
 509                 if (ret == 0) {
 510                         if (nv_mclass(disp->core) < NV50_DISP_CLASS)
 511                                 ret = nv04_display_create(dev);
 512                         else
 513                                 ret = nv50_display_create(dev);
 514                 }
 515         } else {
 516                 ret = 0;
 517         }
 518
 519         if (ret)
 520                 goto disp_create_err;
 521
 522         if (dev->mode_config.num_crtc) {
 523                 ret = nouveau_display_vblank_init(dev);
 524                 if (ret)
 525                         goto vblank_err;
 526         }
 527
 528         nouveau_backlight_init(dev);
 529         return 0;
 530
 531 vblank_err:
 532         disp->dtor(dev);
 533 disp_create_err:
 534         drm_kms_helper_poll_fini(dev);
 535         drm_mode_config_cleanup(dev);
 536         return ret;
 537 }
 538
 539 void
 540 nouveau_display_destroy(struct drm_device *dev)
 541 {
 542         struct nouveau_display *disp = nouveau_display(dev);
 543         struct nouveau_drm *drm = nouveau_drm(dev);
 544
 545         nouveau_backlight_exit(dev);
 546         nouveau_display_vblank_fini(dev);
 547
 548         drm_kms_helper_poll_fini(dev);
 549         drm_mode_config_cleanup(dev);
 550
 551         if (disp->dtor)
 552                 disp->dtor(dev);
 553
 554         nouveau_object_del(nv_object(drm), NVDRM_DEVICE, NVDRM_DISPLAY);
 555
 556         nouveau_drm(dev)->display = NULL;
 557         kfree(disp);
 558 }
 559
 560 int
 561 nouveau_display_suspend(struct drm_device *dev)
 562 {
 563         struct nouveau_drm *drm = nouveau_drm(dev);
 564         struct drm_crtc *crtc;
 565
 566         nouveau_display_fini(dev);
 567
 568         NV_INFO(drm, "unpinning framebuffer(s)...\n");
 569         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 570                 struct nouveau_framebuffer *nouveau_fb;
 571
 572                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 573                 if (!nouveau_fb || !nouveau_fb->nvbo)
 574                         continue;
 575
 576                 nouveau_bo_unpin(nouveau_fb->nvbo);
 577         }
 578
 579         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 580                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 581
 582                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 583                 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 584         }
 585
 586         return 0;
 587 }
 588
 589 void
 590 nouveau_display_repin(struct drm_device *dev)
 591 {
 592         struct nouveau_drm *drm = nouveau_drm(dev);
 593         struct drm_crtc *crtc;
 594         int ret;
 595
 596         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 597                 struct nouveau_framebuffer *nouveau_fb;
 598
 599                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 600                 if (!nouveau_fb || !nouveau_fb->nvbo)
 601                         continue;
 602
 603                 nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
 604         }
 605
 606         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 607                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 608
 609                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
 610                 if (!ret)
 611                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 612                 if (ret)
 613                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 614         }
 615 }
 616
 617 void
 618 nouveau_display_resume(struct drm_device *dev)
 619 {
 620         struct drm_crtc *crtc;
 621         nouveau_display_init(dev);
 622
 623         /* Force CLUT to get re-loaded during modeset */
 624         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 625                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 626
 627                 nv_crtc->lut.depth = 0;
 628         }
 629
 630         drm_helper_resume_force_mode(dev);
 631
 632         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 633                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 634                 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
 635
 636                 nv_crtc->cursor.set_offset(nv_crtc, offset);
 637                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 638                                                  nv_crtc->cursor_saved_y);
 639         }
 640 }
 641
 642 static int
 643 nouveau_page_flip_emit(struct nouveau_channel *chan,
 644                        struct nouveau_bo *old_bo,
 645                        struct nouveau_bo *new_bo,
 646                        struct nouveau_page_flip_state *s,
 647                        struct nouveau_fence **pfence)
 648 {
 649         struct nouveau_fence_chan *fctx = chan->fence;
 650         struct nouveau_drm *drm = chan->drm;
 651         struct drm_device *dev = drm->dev;
 652         unsigned long flags;
 653         int ret;
 654
 655         /* Queue it to the pending list */
 656         spin_lock_irqsave(&dev->event_lock, flags);
 657         list_add_tail(&s->head, &fctx->flip);
 658         spin_unlock_irqrestore(&dev->event_lock, flags);
 659
 660         /* Synchronize with the old framebuffer */
 661         ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
 662         if (ret)
 663                 goto fail;
 664
 665         /* Emit the pageflip */
 666         ret = RING_SPACE(chan, 2);
 667         if (ret)
 668                 goto fail;
 669
 670         if (nv_device(drm->device)->card_type < NV_C0)
 671                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 672         else
 673                 BEGIN_NVC0(chan, FermiSw, NV_SW_PAGE_FLIP, 1);
 674         OUT_RING  (chan, 0x00000000);
 675         FIRE_RING (chan);
 676
 677         ret = nouveau_fence_new(chan, false, pfence);
 678         if (ret)
 679                 goto fail;
 680
 681         return 0;
 682 fail:
 683         spin_lock_irqsave(&dev->event_lock, flags);
 684         list_del(&s->head);
 685         spin_unlock_irqrestore(&dev->event_lock, flags);
 686         return ret;
 687 }
 688
 689 int
 690 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 691                        struct drm_pending_vblank_event *event, u32 flags)
 692 {
 693         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 694         struct drm_device *dev = crtc->dev;
 695         struct nouveau_drm *drm = nouveau_drm(dev);
 696         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->fb)->nvbo;
 697         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 698         struct nouveau_page_flip_state *s;
 699         struct nouveau_channel *chan = drm->channel;
 700         struct nouveau_fence *fence;
 701         int ret;
 702
 703         if (!drm->channel)
 704                 return -ENODEV;
 705
 706         s = kzalloc(sizeof(*s), GFP_KERNEL);
 707         if (!s)
 708                 return -ENOMEM;
 709
 710         if (new_bo != old_bo) {
 711                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
 712                 if (ret)
 713                         goto fail_free;
 714         }
 715
 716         mutex_lock(&chan->cli->mutex);
 717
 718         /* synchronise rendering channel with the kernel's channel */
 719         spin_lock(&new_bo->bo.bdev->fence_lock);
 720         fence = nouveau_fence_ref(new_bo->bo.sync_obj);
 721         spin_unlock(&new_bo->bo.bdev->fence_lock);
 722         ret = nouveau_fence_sync(fence, chan);
 723         nouveau_fence_unref(&fence);
 724         if (ret)
 725                 goto fail_unpin;
 726
 727         ret = ttm_bo_reserve(&old_bo->bo, true, false, false, NULL);
 728         if (ret)
 729                 goto fail_unpin;
 730
 731         /* Initialize a page flip struct */
 732         *s = (struct nouveau_page_flip_state)
 733                 { { }, event, nouveau_crtc(crtc)->index,
 734                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 735                   new_bo->bo.offset };
 736
 737         /* Emit a page flip */
 738         if (nv_device(drm->device)->card_type >= NV_50) {
 739                 ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
 740                 if (ret)
 741                         goto fail_unreserve;
 742         } else {
 743                 struct nv04_display *dispnv04 = nv04_display(dev);
 744                 int head = nouveau_crtc(crtc)->index;
 745
 746                 if (swap_interval) {
 747                         ret = RING_SPACE(chan, 8);
 748                         if (ret)
 749                                 goto fail_unreserve;
 750
 751                         BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 752                         OUT_RING  (chan, 0);
 753                         BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 754                         OUT_RING  (chan, head);
 755                         BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 756                         OUT_RING  (chan, 0);
 757                         BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 758                         OUT_RING  (chan, 0);
 759                 }
 760
 761                 nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 762         }
 763
 764         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 765         mutex_unlock(&chan->cli->mutex);
 766         if (ret)
 767                 goto fail_unreserve;
 768
 769         /* Update the crtc struct and cleanup */
 770         crtc->fb = fb;
 771
 772         nouveau_bo_fence(old_bo, fence);
 773         ttm_bo_unreserve(&old_bo->bo);
 774         if (old_bo != new_bo)
 775                 nouveau_bo_unpin(old_bo);
 776         nouveau_fence_unref(&fence);
 777         return 0;
 778
 779 fail_unreserve:
 780         ttm_bo_unreserve(&old_bo->bo);
 781 fail_unpin:
 782         mutex_unlock(&chan->cli->mutex);
 783         if (old_bo != new_bo)
 784                 nouveau_bo_unpin(new_bo);
 785 fail_free:
 786         kfree(s);
 787         return ret;
 788 }
 789
 790 int
 791 nouveau_finish_page_flip(struct nouveau_channel *chan,
 792                          struct nouveau_page_flip_state *ps)
 793 {
 794         struct nouveau_fence_chan *fctx = chan->fence;
 795         struct nouveau_drm *drm = chan->drm;
 796         struct drm_device *dev = drm->dev;
 797         struct nouveau_page_flip_state *s;
 798         unsigned long flags;
 799
 800         spin_lock_irqsave(&dev->event_lock, flags);
 801
 802         if (list_empty(&fctx->flip)) {
 803                 NV_ERROR(drm, "unexpected pageflip\n");
 804                 spin_unlock_irqrestore(&dev->event_lock, flags);
 805                 return -EINVAL;
 806         }
 807
 808         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 809         if (s->event)
 810                 drm_send_vblank_event(dev, s->crtc, s->event);
 811
 812         list_del(&s->head);
 813         if (ps)
 814                 *ps = *s;
 815         kfree(s);
 816
 817         spin_unlock_irqrestore(&dev->event_lock, flags);
 818         return 0;
 819 }
 820
 821 int
 822 nouveau_flip_complete(void *data)
 823 {
 824         struct nouveau_channel *chan = data;
 825         struct nouveau_drm *drm = chan->drm;
 826         struct nouveau_page_flip_state state;
 827
 828         if (!nouveau_finish_page_flip(chan, &state)) {
 829                 if (nv_device(drm->device)->card_type < NV_50) {
 830                         nv_set_crtc_base(drm->dev, state.crtc, state.offset +
 831                                          state.y * state.pitch +
 832                                          state.x * state.bpp / 8);
 833                 }
 834         }
 835
 836         return 0;
 837 }
 838
 839 int
 840 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 841                             struct drm_mode_create_dumb *args)
 842 {
 843         struct nouveau_bo *bo;
 844         int ret;
 845
 846         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 847         args->size = args->pitch * args->height;
 848         args->size = roundup(args->size, PAGE_SIZE);
 849
 850         ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 851         if (ret)
 852                 return ret;
 853
 854         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 855         drm_gem_object_unreference_unlocked(&bo->gem);
 856         return ret;
 857 }
 858
 859 int
 860 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 861                                 struct drm_device *dev,
 862                                 uint32_t handle, uint64_t *poffset)
 863 {
 864         struct drm_gem_object *gem;
 865
 866         gem = drm_gem_object_lookup(dev, file_priv, handle);
 867         if (gem) {
 868                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 869                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
 870                 drm_gem_object_unreference_unlocked(gem);
 871                 return 0;
 872         }
 873
 874         return -ENOENT;
 875 }