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 "drmP.h"
  28 #include "drm_crtc_helper.h"
  29
  30 #include "nouveau_fbcon.h"
  31 #include "nouveau_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 <subdev/bios/gpio.h>
  41 #include <subdev/gpio.h>
  42 #include <engine/disp.h>
  43
  44 static void
  45 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
  46 {
  47         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  48
  49         if (fb->nvbo)
  50                 drm_gem_object_unreference_unlocked(fb->nvbo->gem);
  51
  52         drm_framebuffer_cleanup(drm_fb);
  53         kfree(fb);
  54 }
  55
  56 static int
  57 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
  58                                        struct drm_file *file_priv,
  59                                        unsigned int *handle)
  60 {
  61         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
  62
  63         return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle);
  64 }
  65
  66 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
  67         .destroy = nouveau_user_framebuffer_destroy,
  68         .create_handle = nouveau_user_framebuffer_create_handle,
  69 };
  70
  71 int
  72 nouveau_framebuffer_init(struct drm_device *dev,
  73                          struct nouveau_framebuffer *nv_fb,
  74                          struct drm_mode_fb_cmd2 *mode_cmd,
  75                          struct nouveau_bo *nvbo)
  76 {
  77         struct nouveau_drm *drm = nouveau_drm(dev);
  78         struct drm_framebuffer *fb = &nv_fb->base;
  79         int ret;
  80
  81         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
  82         if (ret) {
  83                 return ret;
  84         }
  85
  86         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
  87         nv_fb->nvbo = nvbo;
  88
  89         if (nv_device(drm->device)->card_type >= NV_50) {
  90                 u32 tile_flags = nouveau_bo_tile_layout(nvbo);
  91                 if (tile_flags == 0x7a00 ||
  92                     tile_flags == 0xfe00)
  93                         nv_fb->r_dma = NvEvoFB32;
  94                 else
  95                 if (tile_flags == 0x7000)
  96                         nv_fb->r_dma = NvEvoFB16;
  97                 else
  98                         nv_fb->r_dma = NvEvoVRAM_LP;
  99
 100                 switch (fb->depth) {
 101                 case  8: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_8; break;
 102                 case 15: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_15; break;
 103                 case 16: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_16; break;
 104                 case 24:
 105                 case 32: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_24; break;
 106                 case 30: nv_fb->r_format = NV50_EVO_CRTC_FB_DEPTH_30; break;
 107                 default:
 108                          NV_ERROR(drm, "unknown depth %d\n", fb->depth);
 109                          return -EINVAL;
 110                 }
 111
 112                 if (nv_device(drm->device)->chipset == 0x50)
 113                         nv_fb->r_format |= (tile_flags << 8);
 114
 115                 if (!tile_flags) {
 116                         if (nv_device(drm->device)->card_type < NV_D0)
 117                                 nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
 118                         else
 119                                 nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
 120                 } else {
 121                         u32 mode = nvbo->tile_mode;
 122                         if (nv_device(drm->device)->card_type >= NV_C0)
 123                                 mode >>= 4;
 124                         nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
 125                 }
 126         }
 127
 128         return 0;
 129 }
 130
 131 static struct drm_framebuffer *
 132 nouveau_user_framebuffer_create(struct drm_device *dev,
 133                                 struct drm_file *file_priv,
 134                                 struct drm_mode_fb_cmd2 *mode_cmd)
 135 {
 136         struct nouveau_framebuffer *nouveau_fb;
 137         struct drm_gem_object *gem;
 138         int ret;
 139
 140         gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 141         if (!gem)
 142                 return ERR_PTR(-ENOENT);
 143
 144         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 145         if (!nouveau_fb)
 146                 return ERR_PTR(-ENOMEM);
 147
 148         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 149         if (ret) {
 150                 drm_gem_object_unreference(gem);
 151                 return ERR_PTR(ret);
 152         }
 153
 154         return &nouveau_fb->base;
 155 }
 156
 157 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 158         .fb_create = nouveau_user_framebuffer_create,
 159         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 160 };
 161
 162
 163 struct nouveau_drm_prop_enum_list {
 164         u8 gen_mask;
 165         int type;
 166         char *name;
 167 };
 168
 169 static struct nouveau_drm_prop_enum_list underscan[] = {
 170         { 6, UNDERSCAN_AUTO, "auto" },
 171         { 6, UNDERSCAN_OFF, "off" },
 172         { 6, UNDERSCAN_ON, "on" },
 173         {}
 174 };
 175
 176 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 177         { 7, DITHERING_MODE_AUTO, "auto" },
 178         { 7, DITHERING_MODE_OFF, "off" },
 179         { 1, DITHERING_MODE_ON, "on" },
 180         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 181         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 182         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 183         {}
 184 };
 185
 186 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 187         { 6, DITHERING_DEPTH_AUTO, "auto" },
 188         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 189         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 190         {}
 191 };
 192
 193 #define PROP_ENUM(p,gen,n,list) do {                                           \
 194         struct nouveau_drm_prop_enum_list *l = (list);                         \
 195         int c = 0;                                                             \
 196         while (l->gen_mask) {                                                  \
 197                 if (l->gen_mask & (1 << (gen)))                                \
 198                         c++;                                                   \
 199                 l++;                                                           \
 200         }                                                                      \
 201         if (c) {                                                               \
 202                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 203                 l = (list);                                                    \
 204                 c = 0;                                                         \
 205                 while (p && l->gen_mask) {                                     \
 206                         if (l->gen_mask & (1 << (gen))) {                      \
 207                                 drm_property_add_enum(p, c, l->type, l->name); \
 208                                 c++;                                           \
 209                         }                                                      \
 210                         l++;                                                   \
 211                 }                                                              \
 212         }                                                                      \
 213 } while(0)
 214
 215 int
 216 nouveau_display_init(struct drm_device *dev)
 217 {
 218         struct nouveau_drm *drm = nouveau_drm(dev);
 219         struct nouveau_display *disp = nouveau_display(dev);
 220         struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
 221         struct drm_connector *connector;
 222         int ret;
 223
 224         ret = disp->init(dev);
 225         if (ret)
 226                 return ret;
 227
 228         /* power on internal panel if it's not already.  the init tables of
 229          * some vbios default this to off for some reason, causing the
 230          * panel to not work after resume
 231          */
 232         if (gpio && gpio->get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff) == 0) {
 233                 gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
 234                 msleep(300);
 235         }
 236
 237         /* enable polling for external displays */
 238         drm_kms_helper_poll_enable(dev);
 239
 240         /* enable hotplug interrupts */
 241         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 242                 struct nouveau_connector *conn = nouveau_connector(connector);
 243                 if (gpio)
 244                         gpio->irq(gpio, 0, conn->hpd, 0xff, true);
 245         }
 246
 247         return ret;
 248 }
 249
 250 void
 251 nouveau_display_fini(struct drm_device *dev)
 252 {
 253         struct nouveau_drm *drm = nouveau_drm(dev);
 254         struct nouveau_display *disp = nouveau_display(dev);
 255         struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
 256         struct drm_connector *connector;
 257
 258         /* disable hotplug interrupts */
 259         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 260                 struct nouveau_connector *conn = nouveau_connector(connector);
 261                 if (gpio)
 262                         gpio->irq(gpio, 0, conn->hpd, 0xff, false);
 263         }
 264
 265         drm_kms_helper_poll_disable(dev);
 266         disp->fini(dev);
 267 }
 268
 269 static void
 270 nouveau_display_vblank_notify(void *data, int crtc)
 271 {
 272         drm_handle_vblank(data, crtc);
 273 }
 274
 275 static void
 276 nouveau_display_vblank_get(void *data, int crtc)
 277 {
 278         drm_vblank_get(data, crtc);
 279 }
 280
 281 static void
 282 nouveau_display_vblank_put(void *data, int crtc)
 283 {
 284         drm_vblank_put(data, crtc);
 285 }
 286
 287 int
 288 nouveau_display_create(struct drm_device *dev)
 289 {
 290         struct nouveau_drm *drm = nouveau_drm(dev);
 291         struct nouveau_disp *pdisp = nouveau_disp(drm->device);
 292         struct nouveau_display *disp;
 293         int ret, gen;
 294
 295         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 296         if (!disp)
 297                 return -ENOMEM;
 298
 299         pdisp->vblank.data = dev;
 300         pdisp->vblank.notify = nouveau_display_vblank_notify;
 301         pdisp->vblank.get = nouveau_display_vblank_get;
 302         pdisp->vblank.put = nouveau_display_vblank_put;
 303
 304         drm_mode_config_init(dev);
 305         drm_mode_create_scaling_mode_property(dev);
 306         drm_mode_create_dvi_i_properties(dev);
 307
 308         if (nv_device(drm->device)->card_type < NV_50)
 309                 gen = 0;
 310         else
 311         if (nv_device(drm->device)->card_type < NV_D0)
 312                 gen = 1;
 313         else
 314                 gen = 2;
 315
 316         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 317         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 318         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 319
 320         disp->underscan_hborder_property =
 321                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 322
 323         disp->underscan_vborder_property =
 324                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 325
 326         if (gen == 1) {
 327                 disp->vibrant_hue_property =
 328                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
 329                                             "vibrant hue", 2);
 330                 disp->vibrant_hue_property->values[0] = 0;
 331                 disp->vibrant_hue_property->values[1] = 180; /* -90..+90 */
 332
 333                 disp->color_vibrance_property =
 334                         drm_property_create(dev, DRM_MODE_PROP_RANGE,
 335                                             "color vibrance", 2);
 336                 disp->color_vibrance_property->values[0] = 0;
 337                 disp->color_vibrance_property->values[1] = 200; /* -100..+100 */
 338         }
 339
 340         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 341         dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
 342
 343         dev->mode_config.min_width = 0;
 344         dev->mode_config.min_height = 0;
 345         if (nv_device(drm->device)->card_type < NV_10) {
 346                 dev->mode_config.max_width = 2048;
 347                 dev->mode_config.max_height = 2048;
 348         } else
 349         if (nv_device(drm->device)->card_type < NV_50) {
 350                 dev->mode_config.max_width = 4096;
 351                 dev->mode_config.max_height = 4096;
 352         } else {
 353                 dev->mode_config.max_width = 8192;
 354                 dev->mode_config.max_height = 8192;
 355         }
 356
 357         dev->mode_config.preferred_depth = 24;
 358         dev->mode_config.prefer_shadow = 1;
 359
 360         drm_kms_helper_poll_init(dev);
 361         drm_kms_helper_poll_disable(dev);
 362
 363         if (nv_device(drm->device)->card_type < NV_50)
 364                 ret = nv04_display_create(dev);
 365         else
 366         if (nv_device(drm->device)->card_type < NV_D0)
 367                 ret = nv50_display_create(dev);
 368         else
 369                 ret = nvd0_display_create(dev);
 370         if (ret)
 371                 goto disp_create_err;
 372
 373         if (dev->mode_config.num_crtc) {
 374                 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 375                 if (ret)
 376                         goto vblank_err;
 377         }
 378
 379         nouveau_backlight_init(dev);
 380         return 0;
 381
 382 vblank_err:
 383         disp->dtor(dev);
 384 disp_create_err:
 385         drm_kms_helper_poll_fini(dev);
 386         drm_mode_config_cleanup(dev);
 387         return ret;
 388 }
 389
 390 void
 391 nouveau_display_destroy(struct drm_device *dev)
 392 {
 393         struct nouveau_display *disp = nouveau_display(dev);
 394
 395         nouveau_backlight_exit(dev);
 396         drm_vblank_cleanup(dev);
 397
 398         disp->dtor(dev);
 399
 400         drm_kms_helper_poll_fini(dev);
 401         drm_mode_config_cleanup(dev);
 402         nouveau_drm(dev)->display = NULL;
 403         kfree(disp);
 404 }
 405
 406 int
 407 nouveau_display_suspend(struct drm_device *dev)
 408 {
 409         struct nouveau_drm *drm = nouveau_drm(dev);
 410         struct drm_crtc *crtc;
 411
 412         nouveau_display_fini(dev);
 413
 414         NV_INFO(drm, "unpinning framebuffer(s)...\n");
 415         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 416                 struct nouveau_framebuffer *nouveau_fb;
 417
 418                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 419                 if (!nouveau_fb || !nouveau_fb->nvbo)
 420                         continue;
 421
 422                 nouveau_bo_unpin(nouveau_fb->nvbo);
 423         }
 424
 425         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 426                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 427
 428                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 429                 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 430         }
 431
 432         return 0;
 433 }
 434
 435 void
 436 nouveau_display_resume(struct drm_device *dev)
 437 {
 438         struct nouveau_drm *drm = nouveau_drm(dev);
 439         struct drm_crtc *crtc;
 440         int ret;
 441
 442         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 443                 struct nouveau_framebuffer *nouveau_fb;
 444
 445                 nouveau_fb = nouveau_framebuffer(crtc->fb);
 446                 if (!nouveau_fb || !nouveau_fb->nvbo)
 447                         continue;
 448
 449                 nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
 450         }
 451
 452         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 453                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 454
 455                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
 456                 if (!ret)
 457                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 458                 if (ret)
 459                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 460         }
 461
 462         nouveau_fbcon_set_suspend(dev, 0);
 463         nouveau_fbcon_zfill_all(dev);
 464
 465         nouveau_display_init(dev);
 466
 467         /* Force CLUT to get re-loaded during modeset */
 468         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 469                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 470
 471                 nv_crtc->lut.depth = 0;
 472         }
 473
 474         drm_helper_resume_force_mode(dev);
 475
 476         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 477                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 478                 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
 479
 480                 nv_crtc->cursor.set_offset(nv_crtc, offset);
 481                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 482                                                  nv_crtc->cursor_saved_y);
 483         }
 484 }
 485
 486 int
 487 nouveau_vblank_enable(struct drm_device *dev, int crtc)
 488 {
 489         struct nouveau_device *device = nouveau_dev(dev);
 490
 491         if (device->card_type >= NV_D0)
 492                 nv_mask(device, 0x6100c0 + (crtc * 0x800), 1, 1);
 493         else
 494         if (device->card_type >= NV_50)
 495                 nv_mask(device, NV50_PDISPLAY_INTR_EN_1, 0,
 496                         NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_(crtc));
 497         else
 498                 NVWriteCRTC(dev, crtc, NV_PCRTC_INTR_EN_0,
 499                             NV_PCRTC_INTR_0_VBLANK);
 500
 501         return 0;
 502 }
 503
 504 void
 505 nouveau_vblank_disable(struct drm_device *dev, int crtc)
 506 {
 507         struct nouveau_device *device = nouveau_dev(dev);
 508
 509         if (device->card_type >= NV_D0)
 510                 nv_mask(device, 0x6100c0 + (crtc * 0x800), 1, 0);
 511         else
 512         if (device->card_type >= NV_50)
 513                 nv_mask(device, NV50_PDISPLAY_INTR_EN_1,
 514                         NV50_PDISPLAY_INTR_EN_1_VBLANK_CRTC_(crtc), 0);
 515         else
 516                 NVWriteCRTC(dev, crtc, NV_PCRTC_INTR_EN_0, 0);
 517 }
 518
 519 static int
 520 nouveau_page_flip_reserve(struct nouveau_bo *old_bo,
 521                           struct nouveau_bo *new_bo)
 522 {
 523         int ret;
 524
 525         ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
 526         if (ret)
 527                 return ret;
 528
 529         ret = ttm_bo_reserve(&new_bo->bo, false, false, false, 0);
 530         if (ret)
 531                 goto fail;
 532
 533         if (likely(old_bo != new_bo)) {
 534                 ret = ttm_bo_reserve(&old_bo->bo, false, false, false, 0);
 535                 if (ret)
 536                         goto fail_unreserve;
 537         }
 538
 539         return 0;
 540
 541 fail_unreserve:
 542         ttm_bo_unreserve(&new_bo->bo);
 543 fail:
 544         nouveau_bo_unpin(new_bo);
 545         return ret;
 546 }
 547
 548 static void
 549 nouveau_page_flip_unreserve(struct nouveau_bo *old_bo,
 550                             struct nouveau_bo *new_bo,
 551                             struct nouveau_fence *fence)
 552 {
 553         nouveau_bo_fence(new_bo, fence);
 554         ttm_bo_unreserve(&new_bo->bo);
 555
 556         if (likely(old_bo != new_bo)) {
 557                 nouveau_bo_fence(old_bo, fence);
 558                 ttm_bo_unreserve(&old_bo->bo);
 559         }
 560
 561         nouveau_bo_unpin(old_bo);
 562 }
 563
 564 static int
 565 nouveau_page_flip_emit(struct nouveau_channel *chan,
 566                        struct nouveau_bo *old_bo,
 567                        struct nouveau_bo *new_bo,
 568                        struct nouveau_page_flip_state *s,
 569                        struct nouveau_fence **pfence)
 570 {
 571         struct nouveau_fence_chan *fctx = chan->fence;
 572         struct nouveau_drm *drm = chan->drm;
 573         struct drm_device *dev = drm->dev;
 574         unsigned long flags;
 575         int ret;
 576
 577         /* Queue it to the pending list */
 578         spin_lock_irqsave(&dev->event_lock, flags);
 579         list_add_tail(&s->head, &fctx->flip);
 580         spin_unlock_irqrestore(&dev->event_lock, flags);
 581
 582         /* Synchronize with the old framebuffer */
 583         ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
 584         if (ret)
 585                 goto fail;
 586
 587         /* Emit the pageflip */
 588         ret = RING_SPACE(chan, 3);
 589         if (ret)
 590                 goto fail;
 591
 592         if (nv_device(drm->device)->card_type < NV_C0) {
 593                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 594                 OUT_RING  (chan, 0x00000000);
 595                 OUT_RING  (chan, 0x00000000);
 596         } else {
 597                 BEGIN_NVC0(chan, 0, NV10_SUBCHAN_REF_CNT, 1);
 598                 OUT_RING  (chan, 0);
 599                 BEGIN_IMC0(chan, 0, NVSW_SUBCHAN_PAGE_FLIP, 0x0000);
 600         }
 601         FIRE_RING (chan);
 602
 603         ret = nouveau_fence_new(chan, pfence);
 604         if (ret)
 605                 goto fail;
 606
 607         return 0;
 608 fail:
 609         spin_lock_irqsave(&dev->event_lock, flags);
 610         list_del(&s->head);
 611         spin_unlock_irqrestore(&dev->event_lock, flags);
 612         return ret;
 613 }
 614
 615 int
 616 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 617                        struct drm_pending_vblank_event *event)
 618 {
 619         struct drm_device *dev = crtc->dev;
 620         struct nouveau_drm *drm = nouveau_drm(dev);
 621         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->fb)->nvbo;
 622         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 623         struct nouveau_page_flip_state *s;
 624         struct nouveau_channel *chan = NULL;
 625         struct nouveau_fence *fence;
 626         int ret;
 627
 628         if (!drm->channel)
 629                 return -ENODEV;
 630
 631         s = kzalloc(sizeof(*s), GFP_KERNEL);
 632         if (!s)
 633                 return -ENOMEM;
 634
 635         /* Don't let the buffers go away while we flip */
 636         ret = nouveau_page_flip_reserve(old_bo, new_bo);
 637         if (ret)
 638                 goto fail_free;
 639
 640         /* Initialize a page flip struct */
 641         *s = (struct nouveau_page_flip_state)
 642                 { { }, event, nouveau_crtc(crtc)->index,
 643                   fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 644                   new_bo->bo.offset };
 645
 646         /* Choose the channel the flip will be handled in */
 647         fence = new_bo->bo.sync_obj;
 648         if (fence)
 649                 chan = fence->channel;
 650         if (!chan)
 651                 chan = drm->channel;
 652         mutex_lock(&chan->cli->mutex);
 653
 654         /* Emit a page flip */
 655         if (nv_device(drm->device)->card_type >= NV_50) {
 656                 if (nv_device(drm->device)->card_type >= NV_D0)
 657                         ret = nvd0_display_flip_next(crtc, fb, chan, 0);
 658                 else
 659                         ret = nv50_display_flip_next(crtc, fb, chan);
 660                 if (ret) {
 661                         mutex_unlock(&chan->cli->mutex);
 662                         goto fail_unreserve;
 663                 }
 664         }
 665
 666         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 667         mutex_unlock(&chan->cli->mutex);
 668         if (ret)
 669                 goto fail_unreserve;
 670
 671         /* Update the crtc struct and cleanup */
 672         crtc->fb = fb;
 673
 674         nouveau_page_flip_unreserve(old_bo, new_bo, fence);
 675         nouveau_fence_unref(&fence);
 676         return 0;
 677
 678 fail_unreserve:
 679         nouveau_page_flip_unreserve(old_bo, new_bo, NULL);
 680 fail_free:
 681         kfree(s);
 682         return ret;
 683 }
 684
 685 int
 686 nouveau_finish_page_flip(struct nouveau_channel *chan,
 687                          struct nouveau_page_flip_state *ps)
 688 {
 689         struct nouveau_fence_chan *fctx = chan->fence;
 690         struct nouveau_drm *drm = chan->drm;
 691         struct drm_device *dev = drm->dev;
 692         struct nouveau_page_flip_state *s;
 693         unsigned long flags;
 694
 695         spin_lock_irqsave(&dev->event_lock, flags);
 696
 697         if (list_empty(&fctx->flip)) {
 698                 NV_ERROR(drm, "unexpected pageflip\n");
 699                 spin_unlock_irqrestore(&dev->event_lock, flags);
 700                 return -EINVAL;
 701         }
 702
 703         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 704         if (s->event) {
 705                 struct drm_pending_vblank_event *e = s->event;
 706                 struct timeval now;
 707
 708                 do_gettimeofday(&now);
 709                 e->event.sequence = 0;
 710                 e->event.tv_sec = now.tv_sec;
 711                 e->event.tv_usec = now.tv_usec;
 712                 list_add_tail(&e->base.link, &e->base.file_priv->event_list);
 713                 wake_up_interruptible(&e->base.file_priv->event_wait);
 714         }
 715
 716         list_del(&s->head);
 717         if (ps)
 718                 *ps = *s;
 719         kfree(s);
 720
 721         spin_unlock_irqrestore(&dev->event_lock, flags);
 722         return 0;
 723 }
 724
 725 int
 726 nouveau_flip_complete(void *data)
 727 {
 728         struct nouveau_channel *chan = data;
 729         struct nouveau_drm *drm = chan->drm;
 730         struct nouveau_page_flip_state state;
 731
 732         if (!nouveau_finish_page_flip(chan, &state)) {
 733                 if (nv_device(drm->device)->card_type < NV_50) {
 734                         nv_set_crtc_base(drm->dev, state.crtc, state.offset +
 735                                          state.y * state.pitch +
 736                                          state.x * state.bpp / 8);
 737                 }
 738         }
 739
 740         return 0;
 741 }
 742
 743 int
 744 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 745                             struct drm_mode_create_dumb *args)
 746 {
 747         struct nouveau_bo *bo;
 748         int ret;
 749
 750         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 751         args->size = args->pitch * args->height;
 752         args->size = roundup(args->size, PAGE_SIZE);
 753
 754         ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 755         if (ret)
 756                 return ret;
 757
 758         ret = drm_gem_handle_create(file_priv, bo->gem, &args->handle);
 759         drm_gem_object_unreference_unlocked(bo->gem);
 760         return ret;
 761 }
 762
 763 int
 764 nouveau_display_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
 765                              uint32_t handle)
 766 {
 767         return drm_gem_handle_delete(file_priv, handle);
 768 }
 769
 770 int
 771 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 772                                 struct drm_device *dev,
 773                                 uint32_t handle, uint64_t *poffset)
 774 {
 775         struct drm_gem_object *gem;
 776
 777         gem = drm_gem_object_lookup(dev, file_priv, handle);
 778         if (gem) {
 779                 struct nouveau_bo *bo = gem->driver_private;
 780                 *poffset = bo->bo.addr_space_offset;
 781                 drm_gem_object_unreference_unlocked(gem);
 782                 return 0;
 783         }
 784
 785         return -ENOENT;
 786 }