src/gallium/state_trackers/xorg/xorg_driver.c

   1 /*
   2  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * 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, sub license, 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 portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  *
  26  * Author: Alan Hourihane <alanh@tungstengraphics.com>
  27  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  28  *
  29  */
  30
  31
  32 #include "xorg-server.h"
  33 #include "xf86.h"
  34 #include "xf86_OSproc.h"
  35 #include "compiler.h"
  36 #include "xf86PciInfo.h"
  37 #include "xf86Pci.h"
  38 #include "mipointer.h"
  39 #include "micmap.h"
  40 #include <X11/extensions/randr.h>
  41 #include "fb.h"
  42 #include "edid.h"
  43 #include "xf86i2c.h"
  44 #include "xf86Crtc.h"
  45 #include "miscstruct.h"
  46 #include "dixstruct.h"
  47 #include "xf86xv.h"
  48 #include <X11/extensions/Xv.h>
  49 #ifndef XSERVER_LIBPCIACCESS
  50 #error "libpciaccess needed"
  51 #endif
  52
  53 #include <pciaccess.h>
  54
  55 #include "pipe/p_context.h"
  56 #include "xorg_tracker.h"
  57 #include "xorg_winsys.h"
  58
  59 #ifdef HAVE_LIBKMS
  60 #include "libkms.h"
  61 #endif
  62
  63 /*
  64  * Functions and symbols exported to Xorg via pointers.
  65  */
  66
  67 static Bool drv_pre_init(ScrnInfoPtr pScrn, int flags);
  68 static Bool drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc,
  69                             char **argv);
  70 static Bool drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags);
  71 static void drv_adjust_frame(int scrnIndex, int x, int y, int flags);
  72 static Bool drv_enter_vt(int scrnIndex, int flags);
  73 static void drv_leave_vt(int scrnIndex, int flags);
  74 static void drv_free_screen(int scrnIndex, int flags);
  75 static ModeStatus drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose,
  76                                  int flags);
  77
  78 typedef enum
  79 {
  80     OPTION_SW_CURSOR,
  81     OPTION_2D_ACCEL,
  82 } drv_option_enums;
  83
  84 static const OptionInfoRec drv_options[] = {
  85     {OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE},
  86     {OPTION_2D_ACCEL, "2DAccel", OPTV_BOOLEAN, {0}, FALSE},
  87     {-1, NULL, OPTV_NONE, {0}, FALSE}
  88 };
  89
  90
  91 /*
  92  * Exported Xorg driver functions to winsys
  93  */
  94
  95 const OptionInfoRec *
  96 xorg_tracker_available_options(int chipid, int busid)
  97 {
  98     return drv_options;
  99 }
 100
 101 void
 102 xorg_tracker_set_functions(ScrnInfoPtr scrn)
 103 {
 104     scrn->PreInit = drv_pre_init;
 105     scrn->ScreenInit = drv_screen_init;
 106     scrn->SwitchMode = drv_switch_mode;
 107     scrn->AdjustFrame = drv_adjust_frame;
 108     scrn->EnterVT = drv_enter_vt;
 109     scrn->LeaveVT = drv_leave_vt;
 110     scrn->FreeScreen = drv_free_screen;
 111     scrn->ValidMode = drv_valid_mode;
 112 }
 113
 114
 115 /*
 116  * Internal function definitions
 117  */
 118
 119 static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn);
 120 static Bool drv_close_screen(int scrnIndex, ScreenPtr pScreen);
 121 static Bool drv_save_hw_state(ScrnInfoPtr pScrn);
 122 static Bool drv_restore_hw_state(ScrnInfoPtr pScrn);
 123
 124
 125 /*
 126  * Internal functions
 127  */
 128
 129 static Bool
 130 drv_get_rec(ScrnInfoPtr pScrn)
 131 {
 132     if (pScrn->driverPrivate)
 133         return TRUE;
 134
 135     pScrn->driverPrivate = xnfcalloc(sizeof(modesettingRec), 1);
 136
 137     return TRUE;
 138 }
 139
 140 static void
 141 drv_free_rec(ScrnInfoPtr pScrn)
 142 {
 143     if (!pScrn)
 144         return;
 145
 146     if (!pScrn->driverPrivate)
 147         return;
 148
 149     xfree(pScrn->driverPrivate);
 150
 151     pScrn->driverPrivate = NULL;
 152 }
 153
 154 static void
 155 drv_probe_ddc(ScrnInfoPtr pScrn, int index)
 156 {
 157     ConfiguredMonitor = NULL;
 158 }
 159
 160 static Bool
 161 drv_crtc_resize(ScrnInfoPtr pScrn, int width, int height)
 162 {
 163     modesettingPtr ms = modesettingPTR(pScrn);
 164     PixmapPtr rootPixmap;
 165     ScreenPtr pScreen = pScrn->pScreen;
 166
 167     if (width == pScrn->virtualX && height == pScrn->virtualY)
 168         return TRUE;
 169
 170     pScrn->virtualX = width;
 171     pScrn->virtualY = height;
 172
 173     /*
 174      * Remove the old framebuffer & texture.
 175      */
 176     drmModeRmFB(ms->fd, ms->fb_id);
 177     if (!ms->destroy_front_buffer(pScrn))
 178         FatalError("failed to destroy front buffer\n");
 179
 180     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 181     if (!pScreen->ModifyPixmapHeader(rootPixmap, width, height, -1, -1, -1, NULL))
 182         return FALSE;
 183
 184     /* HW dependent - FIXME */
 185     pScrn->displayWidth = pScrn->virtualX;
 186
 187     /* now create new frontbuffer */
 188     return ms->create_front_buffer(pScrn) && ms->bind_front_buffer(pScrn);
 189 }
 190
 191 static const xf86CrtcConfigFuncsRec crtc_config_funcs = {
 192     .resize = drv_crtc_resize
 193 };
 194
 195 static Bool
 196 drv_init_drm(ScrnInfoPtr pScrn)
 197 {
 198     modesettingPtr ms = modesettingPTR(pScrn);
 199
 200     /* deal with server regeneration */
 201     if (ms->fd < 0) {
 202         char *BusID;
 203
 204         BusID = xalloc(64);
 205         sprintf(BusID, "PCI:%d:%d:%d",
 206                 ((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
 207                 ms->PciInfo->dev, ms->PciInfo->func
 208             );
 209
 210         ms->fd = drmOpen(NULL, BusID);
 211
 212         if (ms->fd < 0)
 213             return FALSE;
 214     }
 215
 216     return TRUE;
 217 }
 218
 219 static Bool
 220 drv_init_resource_management(ScrnInfoPtr pScrn)
 221 {
 222     modesettingPtr ms = modesettingPTR(pScrn);
 223
 224     if (ms->screen || ms->kms)
 225         return TRUE;
 226
 227     ms->api = drm_api_create();
 228     if (ms->api) {
 229         ms->screen = ms->api->create_screen(ms->api, ms->fd, NULL);
 230
 231         if (ms->screen)
 232             return TRUE;
 233
 234         if (ms->api->destroy)
 235             ms->api->destroy(ms->api);
 236
 237         ms->api = NULL;
 238     }
 239
 240 #ifdef HAVE_LIBKMS
 241     if (!kms_create(ms->fd, &ms->kms))
 242         return TRUE;
 243 #endif
 244
 245     return FALSE;
 246 }
 247
 248 static Bool
 249 drv_close_resource_management(ScrnInfoPtr pScrn)
 250 {
 251     modesettingPtr ms = modesettingPTR(pScrn);
 252
 253     if (ms->screen)
 254         ms->screen->destroy(ms->screen);
 255     ms->screen = NULL;
 256
 257     if (ms->api && ms->api->destroy)
 258         ms->api->destroy(ms->api);
 259     ms->api = NULL;
 260
 261 #ifdef HAVE_LIBKMS
 262     if (ms->kms)
 263         kms_destroy(&ms->kms);
 264 #endif
 265
 266     return TRUE;
 267 }
 268
 269 static Bool
 270 drv_pre_init(ScrnInfoPtr pScrn, int flags)
 271 {
 272     xf86CrtcConfigPtr xf86_config;
 273     modesettingPtr ms;
 274     rgb defaultWeight = { 0, 0, 0 };
 275     EntityInfoPtr pEnt;
 276     EntPtr msEnt = NULL;
 277     int max_width, max_height;
 278
 279     if (pScrn->numEntities != 1)
 280         return FALSE;
 281
 282     pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
 283
 284     if (flags & PROBE_DETECT) {
 285         drv_probe_ddc(pScrn, pEnt->index);
 286         return TRUE;
 287     }
 288
 289     /* Allocate driverPrivate */
 290     if (!drv_get_rec(pScrn))
 291         return FALSE;
 292
 293     ms = modesettingPTR(pScrn);
 294     ms->SaveGeneration = -1;
 295     ms->pEnt = pEnt;
 296
 297     pScrn->displayWidth = 640;         /* default it */
 298
 299     if (ms->pEnt->location.type != BUS_PCI)
 300         return FALSE;
 301
 302     ms->PciInfo = xf86GetPciInfoForEntity(ms->pEnt->index);
 303
 304     /* Allocate an entity private if necessary */
 305     if (xf86IsEntityShared(pScrn->entityList[0])) {
 306         FatalError("Entity");
 307 #if 0
 308         msEnt = xf86GetEntityPrivate(pScrn->entityList[0],
 309                                      modesettingEntityIndex)->ptr;
 310         ms->entityPrivate = msEnt;
 311 #else
 312         (void)msEnt;
 313 #endif
 314     } else
 315         ms->entityPrivate = NULL;
 316
 317     if (xf86IsEntityShared(pScrn->entityList[0])) {
 318         if (xf86IsPrimInitDone(pScrn->entityList[0])) {
 319             /* do something */
 320         } else {
 321             xf86SetPrimInitDone(pScrn->entityList[0]);
 322         }
 323     }
 324
 325     ms->fd = -1;
 326     ms->api = NULL;
 327     if (!drv_init_drm(pScrn))
 328         return FALSE;
 329
 330     pScrn->monitor = pScrn->confScreen->monitor;
 331     pScrn->progClock = TRUE;
 332     pScrn->rgbBits = 8;
 333
 334     if (!xf86SetDepthBpp
 335         (pScrn, 0, 0, 0,
 336          PreferConvert24to32 | SupportConvert24to32 | Support32bppFb))
 337         return FALSE;
 338
 339     switch (pScrn->depth) {
 340     case 15:
 341     case 16:
 342     case 24:
 343         break;
 344     default:
 345         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 346                    "Given depth (%d) is not supported by the driver\n",
 347                    pScrn->depth);
 348         return FALSE;
 349     }
 350     xf86PrintDepthBpp(pScrn);
 351
 352     if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
 353         return FALSE;
 354     if (!xf86SetDefaultVisual(pScrn, -1))
 355         return FALSE;
 356
 357     /* Process the options */
 358     xf86CollectOptions(pScrn, NULL);
 359     if (!(ms->Options = xalloc(sizeof(drv_options))))
 360         return FALSE;
 361     memcpy(ms->Options, drv_options, sizeof(drv_options));
 362     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, ms->Options);
 363
 364     /* Allocate an xf86CrtcConfig */
 365     xf86CrtcConfigInit(pScrn, &crtc_config_funcs);
 366     xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 367
 368     max_width = 8192;
 369     max_height = 8192;
 370     xf86CrtcSetSizeRange(pScrn, 320, 200, max_width, max_height);
 371
 372     if (xf86ReturnOptValBool(ms->Options, OPTION_SW_CURSOR, FALSE)) {
 373         ms->SWCursor = TRUE;
 374     }
 375
 376     drv_save_hw_state(pScrn);
 377
 378     xorg_crtc_init(pScrn);
 379     xorg_output_init(pScrn);
 380
 381     if (!xf86InitialConfiguration(pScrn, TRUE)) {
 382         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes.\n");
 383         drv_restore_hw_state(pScrn);
 384         return FALSE;
 385     }
 386
 387     drv_restore_hw_state(pScrn);
 388
 389     /*
 390      * If the driver can do gamma correction, it should call xf86SetGamma() here.
 391      */
 392     {
 393         Gamma zeros = { 0.0, 0.0, 0.0 };
 394
 395         if (!xf86SetGamma(pScrn, zeros)) {
 396             return FALSE;
 397         }
 398     }
 399
 400     if (pScrn->modes == NULL) {
 401         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No modes.\n");
 402         return FALSE;
 403     }
 404
 405     pScrn->currentMode = pScrn->modes;
 406
 407     /* Set display resolution */
 408     xf86SetDpi(pScrn, 0, 0);
 409
 410     /* Load the required sub modules */
 411     if (!xf86LoadSubModule(pScrn, "fb"))
 412         return FALSE;
 413
 414     /* XXX: these aren't needed when we are using libkms */
 415     if (!xf86LoadSubModule(pScrn, "exa"))
 416         return FALSE;
 417
 418 #ifdef DRI2
 419     if (!xf86LoadSubModule(pScrn, "dri2"))
 420         return FALSE;
 421 #endif
 422
 423     return TRUE;
 424 }
 425
 426 static Bool
 427 drv_save_hw_state(ScrnInfoPtr pScrn)
 428 {
 429     /*xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);*/
 430
 431     return TRUE;
 432 }
 433
 434 static Bool
 435 drv_restore_hw_state(ScrnInfoPtr pScrn)
 436 {
 437     /*xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);*/
 438
 439     return TRUE;
 440 }
 441
 442 static void drv_block_handler(int i, pointer blockData, pointer pTimeout,
 443                               pointer pReadmask)
 444 {
 445     ScreenPtr pScreen = screenInfo.screens[i];
 446     modesettingPtr ms = modesettingPTR(xf86Screens[pScreen->myNum]);
 447
 448     pScreen->BlockHandler = ms->blockHandler;
 449     pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);
 450     pScreen->BlockHandler = drv_block_handler;
 451
 452     if (ms->ctx) {
 453        int j;
 454
 455        ms->ctx->flush(ms->ctx, PIPE_FLUSH_RENDER_CACHE, &ms->fence[XORG_NR_FENCES-1]);
 456
 457        if (ms->fence[0])
 458           ms->ctx->screen->fence_finish(ms->ctx->screen, ms->fence[0], 0);
 459
 460        /* The amount of rendering generated by a block handler can be
 461         * quite small.  Let us get a fair way ahead of hardware before
 462         * throttling.
 463         */
 464        for (j = 0; j < XORG_NR_FENCES; j++)
 465           ms->screen->fence_reference(ms->screen,
 466                                       &ms->fence[j],
 467                                       ms->fence[j+1]);
 468
 469        ms->screen->fence_reference(ms->screen,
 470                                    &ms->fence[XORG_NR_FENCES-1],
 471                                    NULL);
 472     }
 473
 474
 475 #ifdef DRM_MODE_FEATURE_DIRTYFB
 476     {
 477         RegionPtr dirty = DamageRegion(ms->damage);
 478         unsigned num_cliprects = REGION_NUM_RECTS(dirty);
 479
 480         if (num_cliprects) {
 481             drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
 482             BoxPtr rect = REGION_RECTS(dirty);
 483             int i, ret;
 484
 485             /* XXX no need for copy? */
 486             for (i = 0; i < num_cliprects; i++, rect++) {
 487                 clip[i].x1 = rect->x1;
 488                 clip[i].y1 = rect->y1;
 489                 clip[i].x2 = rect->x2;
 490                 clip[i].y2 = rect->y2;
 491             }
 492
 493             /* TODO query connector property to see if this is needed */
 494             ret = drmModeDirtyFB(ms->fd, ms->fb_id, clip, num_cliprects);
 495             if (ret) {
 496                 debug_printf("%s: failed to send dirty (%i, %s)\n",
 497                              __func__, ret, strerror(-ret));
 498             }
 499
 500             DamageEmpty(ms->damage);
 501         }
 502     }
 503 #endif
 504 }
 505
 506 static Bool
 507 drv_create_screen_resources(ScreenPtr pScreen)
 508 {
 509     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 510     modesettingPtr ms = modesettingPTR(pScrn);
 511     PixmapPtr rootPixmap;
 512     Bool ret;
 513
 514     ms->noEvict = TRUE;
 515
 516     pScreen->CreateScreenResources = ms->createScreenResources;
 517     ret = pScreen->CreateScreenResources(pScreen);
 518     pScreen->CreateScreenResources = drv_create_screen_resources;
 519
 520     ms->bind_front_buffer(pScrn);
 521
 522     ms->noEvict = FALSE;
 523
 524     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 525
 526 #ifdef DRM_MODE_FEATURE_DIRTYFB
 527     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 528     ms->damage = DamageCreate(NULL, NULL, DamageReportNone, TRUE,
 529                               pScreen, rootPixmap);
 530
 531     if (ms->damage) {
 532        DamageRegister(&rootPixmap->drawable, ms->damage);
 533
 534        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Damage tracking initialized\n");
 535     } else {
 536        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 537                   "Failed to create screen damage record\n");
 538        return FALSE;
 539     }
 540 #else
 541     (void)rootPixmap;
 542 #endif
 543
 544     return ret;
 545 }
 546
 547 static Bool
 548 drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 549 {
 550     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 551     modesettingPtr ms = modesettingPTR(pScrn);
 552     VisualPtr visual;
 553
 554     if (!drv_init_drm(pScrn)) {
 555         FatalError("Could not init DRM");
 556         return FALSE;
 557     }
 558
 559     if (!drv_init_resource_management(pScrn)) {
 560         FatalError("Could not init resource management (!pipe_screen && !libkms)");
 561         return FALSE;
 562     }
 563
 564     if (!drv_init_front_buffer_functions(pScrn)) {
 565         FatalError("Could not init front buffer manager");
 566         return FALSE;
 567     }
 568
 569     pScrn->pScreen = pScreen;
 570
 571     /* HW dependent - FIXME */
 572     pScrn->displayWidth = pScrn->virtualX;
 573
 574     miClearVisualTypes();
 575
 576     if (!miSetVisualTypes(pScrn->depth,
 577                           miGetDefaultVisualMask(pScrn->depth),
 578                           pScrn->rgbBits, pScrn->defaultVisual))
 579         return FALSE;
 580
 581     if (!miSetPixmapDepths())
 582         return FALSE;
 583
 584     pScrn->memPhysBase = 0;
 585     pScrn->fbOffset = 0;
 586
 587     if (!fbScreenInit(pScreen, NULL,
 588                       pScrn->virtualX, pScrn->virtualY,
 589                       pScrn->xDpi, pScrn->yDpi,
 590                       pScrn->displayWidth, pScrn->bitsPerPixel))
 591         return FALSE;
 592
 593     if (pScrn->bitsPerPixel > 8) {
 594         /* Fixup RGB ordering */
 595         visual = pScreen->visuals + pScreen->numVisuals;
 596         while (--visual >= pScreen->visuals) {
 597             if ((visual->class | DynamicClass) == DirectColor) {
 598                 visual->offsetRed = pScrn->offset.red;
 599                 visual->offsetGreen = pScrn->offset.green;
 600                 visual->offsetBlue = pScrn->offset.blue;
 601                 visual->redMask = pScrn->mask.red;
 602                 visual->greenMask = pScrn->mask.green;
 603                 visual->blueMask = pScrn->mask.blue;
 604             }
 605         }
 606     }
 607
 608     fbPictureInit(pScreen, NULL, 0);
 609
 610     ms->blockHandler = pScreen->BlockHandler;
 611     pScreen->BlockHandler = drv_block_handler;
 612     ms->createScreenResources = pScreen->CreateScreenResources;
 613     pScreen->CreateScreenResources = drv_create_screen_resources;
 614
 615     xf86SetBlackWhitePixels(pScreen);
 616
 617     if (ms->screen) {
 618         ms->exa = xorg_exa_init(pScrn, xf86ReturnOptValBool(ms->Options,
 619                                                             OPTION_2D_ACCEL, TRUE));
 620         ms->debug_fallback = debug_get_bool_option("XORG_DEBUG_FALLBACK", TRUE);
 621
 622         xorg_xv_init(pScreen);
 623 #ifdef DRI2
 624         xorg_dri2_init(pScreen);
 625 #endif
 626     }
 627
 628     miInitializeBackingStore(pScreen);
 629     xf86SetBackingStore(pScreen);
 630     xf86SetSilkenMouse(pScreen);
 631     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
 632
 633     /* Need to extend HWcursor support to handle mask interleave */
 634     if (!ms->SWCursor)
 635         xf86_cursors_init(pScreen, 64, 64,
 636                           HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 |
 637                           HARDWARE_CURSOR_ARGB);
 638
 639     /* Must force it before EnterVT, so we are in control of VT and
 640      * later memory should be bound when allocating, e.g rotate_mem */
 641     pScrn->vtSema = TRUE;
 642
 643     pScreen->SaveScreen = xf86SaveScreen;
 644     ms->CloseScreen = pScreen->CloseScreen;
 645     pScreen->CloseScreen = drv_close_screen;
 646
 647     if (!xf86CrtcScreenInit(pScreen))
 648         return FALSE;
 649
 650     if (!miCreateDefColormap(pScreen))
 651         return FALSE;
 652
 653     xf86DPMSInit(pScreen, xf86DPMSSet, 0);
 654
 655     if (serverGeneration == 1)
 656         xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
 657
 658     if (ms->winsys_screen_init)
 659         ms->winsys_screen_init(pScrn);
 660
 661     return drv_enter_vt(scrnIndex, 1);
 662 }
 663
 664 static void
 665 drv_adjust_frame(int scrnIndex, int x, int y, int flags)
 666 {
 667     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 668     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 669     xf86OutputPtr output = config->output[config->compat_output];
 670     xf86CrtcPtr crtc = output->crtc;
 671
 672     if (crtc && crtc->enabled) {
 673         crtc->funcs->set_mode_major(crtc, pScrn->currentMode,
 674                                     RR_Rotate_0, x, y);
 675         crtc->x = output->initial_x + x;
 676         crtc->y = output->initial_y + y;
 677     }
 678 }
 679
 680 static void
 681 drv_free_screen(int scrnIndex, int flags)
 682 {
 683     drv_free_rec(xf86Screens[scrnIndex]);
 684 }
 685
 686 static void
 687 drv_leave_vt(int scrnIndex, int flags)
 688 {
 689     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 690     modesettingPtr ms = modesettingPTR(pScrn);
 691     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 692     int o;
 693
 694     if (ms->winsys_leave_vt)
 695         ms->winsys_leave_vt(pScrn);
 696
 697     for (o = 0; o < config->num_crtc; o++) {
 698         xf86CrtcPtr crtc = config->crtc[o];
 699
 700         xorg_crtc_cursor_destroy(crtc);
 701
 702         if (crtc->rotatedPixmap || crtc->rotatedData) {
 703             crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
 704                                         crtc->rotatedData);
 705             crtc->rotatedPixmap = NULL;
 706             crtc->rotatedData = NULL;
 707         }
 708     }
 709
 710     drmModeRmFB(ms->fd, ms->fb_id);
 711
 712     drv_restore_hw_state(pScrn);
 713
 714     if (drmDropMaster(ms->fd))
 715         xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 716                    "drmDropMaster failed: %s\n", strerror(errno));
 717
 718     pScrn->vtSema = FALSE;
 719 }
 720
 721 /*
 722  * This gets called when gaining control of the VT, and from ScreenInit().
 723  */
 724 static Bool
 725 drv_enter_vt(int scrnIndex, int flags)
 726 {
 727     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 728     modesettingPtr ms = modesettingPTR(pScrn);
 729
 730     if (drmSetMaster(ms->fd)) {
 731         if (errno == EINVAL) {
 732             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 733                        "drmSetMaster failed: 2.6.29 or newer kernel required for "
 734                        "multi-server DRI\n");
 735         } else {
 736             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 737                        "drmSetMaster failed: %s\n", strerror(errno));
 738         }
 739     }
 740
 741     /*
 742      * Only save state once per server generation since that's what most
 743      * drivers do.  Could change this to save state at each VT enter.
 744      */
 745     if (ms->SaveGeneration != serverGeneration) {
 746         ms->SaveGeneration = serverGeneration;
 747         drv_save_hw_state(pScrn);
 748     }
 749
 750     if (!ms->create_front_buffer(pScrn))
 751         return FALSE;
 752
 753     if (!flags && !ms->bind_front_buffer(pScrn))
 754         return FALSE;
 755
 756     if (!xf86SetDesiredModes(pScrn))
 757         return FALSE;
 758
 759     if (ms->winsys_enter_vt)
 760         ms->winsys_enter_vt(pScrn);
 761
 762     return TRUE;
 763 }
 764
 765 static Bool
 766 drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags)
 767 {
 768     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 769
 770     return xf86SetSingleMode(pScrn, mode, RR_Rotate_0);
 771 }
 772
 773 static Bool
 774 drv_close_screen(int scrnIndex, ScreenPtr pScreen)
 775 {
 776     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 777     modesettingPtr ms = modesettingPTR(pScrn);
 778
 779     if (pScrn->vtSema) {
 780         drv_leave_vt(scrnIndex, 0);
 781     }
 782
 783     if (ms->winsys_screen_close)
 784         ms->winsys_screen_close(pScrn);
 785
 786 #ifdef DRI2
 787     if (ms->screen)
 788         xorg_dri2_close(pScreen);
 789 #endif
 790
 791     pScreen->BlockHandler = ms->blockHandler;
 792     pScreen->CreateScreenResources = ms->createScreenResources;
 793
 794 #ifdef DRM_MODE_FEATURE_DIRTYFB
 795     if (ms->damage) {
 796         DamageUnregister(&pScreen->GetScreenPixmap(pScreen)->drawable, ms->damage);
 797         DamageDestroy(ms->damage);
 798         ms->damage = NULL;
 799     }
 800 #endif
 801
 802     drmModeRmFB(ms->fd, ms->fb_id);
 803     ms->destroy_front_buffer(pScrn);
 804
 805     if (ms->exa)
 806         xorg_exa_close(pScrn);
 807     ms->exa = NULL;
 808
 809     drv_close_resource_management(pScrn);
 810
 811     drmClose(ms->fd);
 812     ms->fd = -1;
 813
 814     pScrn->vtSema = FALSE;
 815     pScreen->CloseScreen = ms->CloseScreen;
 816     return (*pScreen->CloseScreen) (scrnIndex, pScreen);
 817 }
 818
 819 static ModeStatus
 820 drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
 821 {
 822     return MODE_OK;
 823 }
 824
 825
 826 /*
 827  * Front buffer backing store functions.
 828  */
 829
 830 static Bool
 831 drv_destroy_front_buffer_ga3d(ScrnInfoPtr pScrn)
 832 {
 833     modesettingPtr ms = modesettingPTR(pScrn);
 834     pipe_texture_reference(&ms->root_texture, NULL);
 835     return TRUE;
 836 }
 837
 838 static Bool
 839 drv_create_front_buffer_ga3d(ScrnInfoPtr pScrn)
 840 {
 841     modesettingPtr ms = modesettingPTR(pScrn);
 842     unsigned handle, stride;
 843     struct pipe_texture *tex;
 844     int ret;
 845
 846     ms->noEvict = TRUE;
 847
 848     tex = xorg_exa_create_root_texture(pScrn, pScrn->virtualX, pScrn->virtualY,
 849                                        pScrn->depth, pScrn->bitsPerPixel);
 850
 851     if (!tex)
 852         return FALSE;
 853
 854     if (!ms->api->local_handle_from_texture(ms->api, ms->screen,
 855                                             tex,
 856                                             &stride,
 857                                             &handle))
 858         goto err_destroy;
 859
 860     ret = drmModeAddFB(ms->fd,
 861                        pScrn->virtualX,
 862                        pScrn->virtualY,
 863                        pScrn->depth,
 864                        pScrn->bitsPerPixel,
 865                        stride,
 866                        handle,
 867                        &ms->fb_id);
 868     if (ret) {
 869         debug_printf("%s: failed to create framebuffer (%i, %s)",
 870                      __func__, ret, strerror(-ret));
 871         goto err_destroy;
 872     }
 873
 874     pScrn->frameX0 = 0;
 875     pScrn->frameY0 = 0;
 876     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 877
 878     pipe_texture_reference(&ms->root_texture, tex);
 879     pipe_texture_reference(&tex, NULL);
 880
 881     return TRUE;
 882
 883 err_destroy:
 884     pipe_texture_reference(&tex, NULL);
 885     return FALSE;
 886 }
 887
 888 static Bool
 889 drv_bind_front_buffer_ga3d(ScrnInfoPtr pScrn)
 890 {
 891     modesettingPtr ms = modesettingPTR(pScrn);
 892     ScreenPtr pScreen = pScrn->pScreen;
 893     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
 894     struct pipe_texture *check;
 895
 896     xorg_exa_set_displayed_usage(rootPixmap);
 897     xorg_exa_set_shared_usage(rootPixmap);
 898     xorg_exa_set_texture(rootPixmap, ms->root_texture);
 899     if (!pScreen->ModifyPixmapHeader(rootPixmap, -1, -1, -1, -1, -1, NULL))
 900         FatalError("Couldn't adjust screen pixmap\n");
 901
 902     check = xorg_exa_get_texture(rootPixmap);
 903     if (ms->root_texture != check)
 904         FatalError("Created new root texture\n");
 905
 906     pipe_texture_reference(&check, NULL);
 907     return TRUE;
 908 }
 909
 910 #ifdef HAVE_LIBKMS
 911 static Bool
 912 drv_destroy_front_buffer_kms(ScrnInfoPtr pScrn)
 913 {
 914     modesettingPtr ms = modesettingPTR(pScrn);
 915     ScreenPtr pScreen = pScrn->pScreen;
 916     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
 917
 918     if (!ms->root_bo)
 919         return TRUE;
 920
 921     kms_bo_unmap(ms->root_bo);
 922     kms_bo_destroy(&ms->root_bo);
 923     return TRUE;
 924 }
 925
 926 static Bool
 927 drv_create_front_buffer_kms(ScrnInfoPtr pScrn)
 928 {
 929     modesettingPtr ms = modesettingPTR(pScrn);
 930     unsigned handle, stride;
 931     struct kms_bo *bo;
 932     unsigned attr[8];
 933     int ret;
 934
 935     attr[0] = KMS_BO_TYPE;
 936     attr[1] = KMS_BO_TYPE_SCANOUT;
 937     attr[2] = KMS_WIDTH;
 938     attr[3] = pScrn->virtualX;
 939     attr[4] = KMS_HEIGHT;
 940     attr[5] = pScrn->virtualY;
 941     attr[6] = 0;
 942
 943     if (kms_bo_create(ms->kms, attr, &bo))
 944         return FALSE;
 945
 946     if (kms_bo_get_prop(bo, KMS_PITCH, &stride))
 947         goto err_destroy;
 948
 949     if (kms_bo_get_prop(bo, KMS_HANDLE, &handle))
 950         goto err_destroy;
 951
 952     ret = drmModeAddFB(ms->fd,
 953                        pScrn->virtualX,
 954                        pScrn->virtualY,
 955                        pScrn->depth,
 956                        pScrn->bitsPerPixel,
 957                        stride,
 958                        handle,
 959                        &ms->fb_id);
 960     if (ret) {
 961         debug_printf("%s: failed to create framebuffer (%i, %s)",
 962                      __func__, ret, strerror(-ret));
 963         goto err_destroy;
 964     }
 965
 966     pScrn->frameX0 = 0;
 967     pScrn->frameY0 = 0;
 968     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 969     ms->root_bo = bo;
 970
 971     return TRUE;
 972
 973 err_destroy:
 974     kms_bo_destroy(&bo);
 975     return FALSE;
 976 }
 977
 978 static Bool
 979 drv_bind_front_buffer_kms(ScrnInfoPtr pScrn)
 980 {
 981     modesettingPtr ms = modesettingPTR(pScrn);
 982     ScreenPtr pScreen = pScrn->pScreen;
 983     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
 984     unsigned stride;
 985     void *ptr;
 986
 987     if (kms_bo_get_prop(ms->root_bo, KMS_PITCH, &stride))
 988         return FALSE;
 989
 990     if (kms_bo_map(ms->root_bo, &ptr))
 991         goto err_destroy;
 992
 993     pScreen->ModifyPixmapHeader(rootPixmap,
 994                                 pScreen->width,
 995                                 pScreen->height,
 996                                 pScreen->rootDepth,
 997                                 pScrn->bitsPerPixel,
 998                                 stride,
 999                                 ptr);
1000     return TRUE;
1001
1002 err_destroy:
1003     kms_bo_destroy(&ms->root_bo);
1004     return FALSE;
1005 }
1006 #endif /* HAVE_LIBKMS */
1007
1008 static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn)
1009 {
1010     modesettingPtr ms = modesettingPTR(pScrn);
1011     if (ms->screen) {
1012         ms->destroy_front_buffer = drv_destroy_front_buffer_ga3d;
1013         ms->create_front_buffer = drv_create_front_buffer_ga3d;
1014         ms->bind_front_buffer = drv_bind_front_buffer_ga3d;
1015 #ifdef HAVE_LIBKMS
1016     } else if (ms->kms) {
1017         ms->destroy_front_buffer = drv_destroy_front_buffer_kms;
1018         ms->create_front_buffer = drv_create_front_buffer_kms;
1019         ms->bind_front_buffer = drv_bind_front_buffer_kms;
1020 #endif
1021     } else
1022         return FALSE;
1023
1024     return TRUE;
1025 }
1026
1027 /* vim: set sw=4 ts=8 sts=4: */