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 #ifndef XSERVER_LIBPCIACCESS
  49 #error "libpciaccess needed"
  50 #endif
  51
  52 #include <pciaccess.h>
  53
  54 #include "state_tracker/drm_driver.h"
  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     OPTION_DEBUG_FALLBACK,
  83     OPTION_THROTTLE_SWAP,
  84     OPTION_THROTTLE_DIRTY,
  85     OPTION_3D_ACCEL
  86 } drv_option_enums;
  87
  88 static const OptionInfoRec drv_options[] = {
  89     {OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE},
  90     {OPTION_2D_ACCEL, "2DAccel", OPTV_BOOLEAN, {0}, FALSE},
  91     {OPTION_DEBUG_FALLBACK, "DebugFallback", OPTV_BOOLEAN, {0}, FALSE},
  92     {OPTION_THROTTLE_SWAP, "SwapThrottling", OPTV_BOOLEAN, {0}, FALSE},
  93     {OPTION_THROTTLE_DIRTY, "DirtyThrottling", OPTV_BOOLEAN, {0}, FALSE},
  94     {OPTION_3D_ACCEL, "3DAccel", OPTV_BOOLEAN, {0}, FALSE},
  95     {-1, NULL, OPTV_NONE, {0}, FALSE}
  96 };
  97
  98
  99 /*
 100  * Exported Xorg driver functions to winsys
 101  */
 102
 103 const OptionInfoRec *
 104 xorg_tracker_available_options(int chipid, int busid)
 105 {
 106     return drv_options;
 107 }
 108
 109 void
 110 xorg_tracker_set_functions(ScrnInfoPtr scrn)
 111 {
 112     scrn->PreInit = drv_pre_init;
 113     scrn->ScreenInit = drv_screen_init;
 114     scrn->SwitchMode = drv_switch_mode;
 115     scrn->AdjustFrame = drv_adjust_frame;
 116     scrn->EnterVT = drv_enter_vt;
 117     scrn->LeaveVT = drv_leave_vt;
 118     scrn->FreeScreen = drv_free_screen;
 119     scrn->ValidMode = drv_valid_mode;
 120 }
 121
 122 Bool
 123 xorg_tracker_have_modesetting(ScrnInfoPtr pScrn, struct pci_device *device)
 124 {
 125     char *BusID = xalloc(64);
 126     sprintf(BusID, "pci:%04x:%02x:%02x.%d",
 127             device->domain, device->bus,
 128             device->dev, device->func);
 129
 130     if (drmCheckModesettingSupported(BusID)) {
 131         xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
 132                        "Drm modesetting not supported %s\n", BusID);
 133         xfree(BusID);
 134         return FALSE;
 135     }
 136
 137     xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
 138                    "Drm modesetting supported on %s\n", BusID);
 139
 140     xfree(BusID);
 141     return TRUE;
 142 }
 143
 144
 145 /*
 146  * Internal function definitions
 147  */
 148
 149 static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn);
 150 static Bool drv_close_screen(int scrnIndex, ScreenPtr pScreen);
 151
 152
 153 /*
 154  * Internal functions
 155  */
 156
 157 static Bool
 158 drv_get_rec(ScrnInfoPtr pScrn)
 159 {
 160     if (pScrn->driverPrivate)
 161         return TRUE;
 162
 163     pScrn->driverPrivate = xnfcalloc(1, sizeof(modesettingRec));
 164
 165     return TRUE;
 166 }
 167
 168 static void
 169 drv_free_rec(ScrnInfoPtr pScrn)
 170 {
 171     if (!pScrn)
 172         return;
 173
 174     if (!pScrn->driverPrivate)
 175         return;
 176
 177     xfree(pScrn->driverPrivate);
 178
 179     pScrn->driverPrivate = NULL;
 180 }
 181
 182 static void
 183 drv_probe_ddc(ScrnInfoPtr pScrn, int index)
 184 {
 185     ConfiguredMonitor = NULL;
 186 }
 187
 188 static Bool
 189 drv_crtc_resize(ScrnInfoPtr pScrn, int width, int height)
 190 {
 191     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 192     modesettingPtr ms = modesettingPTR(pScrn);
 193     CustomizerPtr cust = ms->cust;
 194     ScreenPtr pScreen = pScrn->pScreen;
 195     int old_width, old_height;
 196     PixmapPtr rootPixmap;
 197     int i;
 198
 199     if (width == pScrn->virtualX && height == pScrn->virtualY)
 200         return TRUE;
 201
 202     if (cust && cust->winsys_check_fb_size &&
 203         !cust->winsys_check_fb_size(cust, width*pScrn->bitsPerPixel / 8,
 204                                     height)) {
 205         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 206                    "Requested framebuffer size %dx%dx%d will not fit "
 207                    "in display memory.\n",
 208                    width, height, pScrn->bitsPerPixel);
 209         return FALSE;
 210     }
 211
 212     old_width = pScrn->virtualX;
 213     old_height = pScrn->virtualY;
 214     pScrn->virtualX = width;
 215     pScrn->virtualY = height;
 216
 217     /* ms->create_front_buffer will remove the old front buffer */
 218
 219     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 220     if (!pScreen->ModifyPixmapHeader(rootPixmap, width, height, -1, -1, -1, NULL))
 221         goto error_modify;
 222
 223     pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
 224
 225     if (!ms->create_front_buffer(pScrn) || !ms->bind_front_buffer(pScrn))
 226         goto error_create;
 227
 228     /*
 229      * create && bind will turn off all crtc(s) in the kernel so we need to
 230      * re-enable all the crtcs again. For real HW we might want to do this
 231      * before destroying the old framebuffer.
 232      */
 233     for (i = 0; i < xf86_config->num_crtc; i++) {
 234         xf86CrtcPtr crtc = xf86_config->crtc[i];
 235
 236         if (!crtc->enabled)
 237             continue;
 238
 239         crtc->funcs->set_mode_major(crtc, &crtc->mode, crtc->rotation, crtc->x, crtc->y);
 240     }
 241
 242     return TRUE;
 243
 244     /*
 245      * This is the error recovery path.
 246      */
 247 error_create:
 248     if (!pScreen->ModifyPixmapHeader(rootPixmap, old_width, old_height, -1, -1, -1, NULL))
 249         FatalError("failed to resize rootPixmap error path\n");
 250
 251     pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
 252
 253 error_modify:
 254     pScrn->virtualX = old_width;
 255     pScrn->virtualY = old_height;
 256
 257     if (ms->create_front_buffer(pScrn) && ms->bind_front_buffer(pScrn))
 258         return FALSE;
 259
 260     FatalError("failed to setup old framebuffer\n");
 261     return FALSE;
 262 }
 263
 264 static const xf86CrtcConfigFuncsRec crtc_config_funcs = {
 265     .resize = drv_crtc_resize
 266 };
 267
 268 static Bool
 269 drv_init_drm(ScrnInfoPtr pScrn)
 270 {
 271     modesettingPtr ms = modesettingPTR(pScrn);
 272
 273     /* deal with server regeneration */
 274     if (ms->fd < 0) {
 275         char *BusID;
 276
 277         BusID = xalloc(64);
 278         sprintf(BusID, "PCI:%d:%d:%d",
 279                 ((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
 280                 ms->PciInfo->dev, ms->PciInfo->func
 281             );
 282
 283
 284         ms->fd = drmOpen(driver_descriptor.driver_name, BusID);
 285         ms->isMaster = TRUE;
 286         xfree(BusID);
 287
 288         if (ms->fd >= 0)
 289             return TRUE;
 290
 291         return FALSE;
 292     }
 293
 294     return TRUE;
 295 }
 296
 297 static Bool
 298 drv_init_resource_management(ScrnInfoPtr pScrn)
 299 {
 300     modesettingPtr ms = modesettingPTR(pScrn);
 301     /*
 302     ScreenPtr pScreen = pScrn->pScreen;
 303     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
 304     Bool fbAccessDisabled;
 305     CARD8 *fbstart;
 306      */
 307
 308     if (ms->screen || ms->kms)
 309         return TRUE;
 310
 311     if (!ms->no3D)
 312         ms->screen = driver_descriptor.create_screen(ms->fd);
 313
 314     if (ms->screen)
 315         return TRUE;
 316
 317 #ifdef HAVE_LIBKMS
 318     if (!kms_create(ms->fd, &ms->kms))
 319         return TRUE;
 320 #endif
 321
 322     return FALSE;
 323 }
 324
 325 static void
 326 drv_cleanup_fences(ScrnInfoPtr pScrn)
 327 {
 328     modesettingPtr ms = modesettingPTR(pScrn);
 329     int i;
 330
 331     assert(ms->screen);
 332
 333     for (i = 0; i < XORG_NR_FENCES; i++) {
 334         if (ms->fence[i]) {
 335             ms->screen->fence_finish(ms->screen, ms->fence[i], 0);
 336             ms->screen->fence_reference(ms->screen, &ms->fence[i], NULL);
 337         }
 338     }
 339 }
 340
 341 static Bool
 342 drv_pre_init(ScrnInfoPtr pScrn, int flags)
 343 {
 344     xf86CrtcConfigPtr xf86_config;
 345     modesettingPtr ms;
 346     rgb defaultWeight = { 0, 0, 0 };
 347     EntityInfoPtr pEnt;
 348     EntPtr msEnt = NULL;
 349     CustomizerPtr cust;
 350     Bool use3D;
 351
 352     if (pScrn->numEntities != 1)
 353         return FALSE;
 354
 355     pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
 356
 357     if (flags & PROBE_DETECT) {
 358         drv_probe_ddc(pScrn, pEnt->index);
 359         return TRUE;
 360     }
 361
 362     cust = (CustomizerPtr) pScrn->driverPrivate;
 363     pScrn->driverPrivate = NULL;
 364
 365     /* Allocate driverPrivate */
 366     if (!drv_get_rec(pScrn))
 367         return FALSE;
 368
 369     ms = modesettingPTR(pScrn);
 370     ms->pEnt = pEnt;
 371     ms->cust = cust;
 372
 373     pScrn->displayWidth = 640;         /* default it */
 374
 375     if (ms->pEnt->location.type != BUS_PCI)
 376         return FALSE;
 377
 378     ms->PciInfo = xf86GetPciInfoForEntity(ms->pEnt->index);
 379
 380     /* Allocate an entity private if necessary */
 381     if (xf86IsEntityShared(pScrn->entityList[0])) {
 382         FatalError("Entity");
 383 #if 0
 384         msEnt = xf86GetEntityPrivate(pScrn->entityList[0],
 385                                      modesettingEntityIndex)->ptr;
 386         ms->entityPrivate = msEnt;
 387 #else
 388         (void)msEnt;
 389 #endif
 390     } else
 391         ms->entityPrivate = NULL;
 392
 393     if (xf86IsEntityShared(pScrn->entityList[0])) {
 394         if (xf86IsPrimInitDone(pScrn->entityList[0])) {
 395             /* do something */
 396         } else {
 397             xf86SetPrimInitDone(pScrn->entityList[0]);
 398         }
 399     }
 400
 401     ms->fd = -1;
 402     if (!drv_init_drm(pScrn))
 403         return FALSE;
 404
 405     use3D = cust ? !cust->no_3d : TRUE;
 406     ms->from_3D = xf86GetOptValBool(ms->Options, OPTION_3D_ACCEL,
 407                                     &use3D) ?
 408         X_CONFIG : X_PROBED;
 409
 410     ms->no3D = !use3D;
 411
 412     if (!drv_init_resource_management(pScrn)) {
 413         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Could not init "
 414                                                "Gallium3D or libKMS.");
 415         return FALSE;
 416     }
 417
 418     pScrn->monitor = pScrn->confScreen->monitor;
 419     pScrn->progClock = TRUE;
 420     pScrn->rgbBits = 8;
 421
 422     if (!xf86SetDepthBpp
 423         (pScrn, 0, 0, 0,
 424          PreferConvert24to32 | SupportConvert24to32 | Support32bppFb))
 425         return FALSE;
 426
 427     switch (pScrn->depth) {
 428     case 15:
 429     case 16:
 430     case 24:
 431         break;
 432     default:
 433         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 434                    "Given depth (%d) is not supported by the driver\n",
 435                    pScrn->depth);
 436         return FALSE;
 437     }
 438     xf86PrintDepthBpp(pScrn);
 439
 440     if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
 441         return FALSE;
 442     if (!xf86SetDefaultVisual(pScrn, -1))
 443         return FALSE;
 444
 445     /* Process the options */
 446     xf86CollectOptions(pScrn, NULL);
 447     if (!(ms->Options = xalloc(sizeof(drv_options))))
 448         return FALSE;
 449     memcpy(ms->Options, drv_options, sizeof(drv_options));
 450     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, ms->Options);
 451
 452     /* Allocate an xf86CrtcConfig */
 453     xf86CrtcConfigInit(pScrn, &crtc_config_funcs);
 454     xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 455
 456     /* get max width and height */
 457     {
 458         drmModeResPtr res;
 459         int max_width, max_height;
 460
 461         res = drmModeGetResources(ms->fd);
 462         max_width = res->max_width;
 463         max_height = res->max_height;
 464
 465         if (ms->screen) {
 466             int max;
 467
 468             max = ms->screen->get_param(ms->screen,
 469                                         PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
 470             max = 1 << (max - 1);
 471             max_width = max < max_width ? max : max_width;
 472             max_height = max < max_height ? max : max_height;
 473         }
 474
 475         xf86CrtcSetSizeRange(pScrn, res->min_width,
 476                              res->min_height, max_width, max_height);
 477         xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
 478                    "Min width %d, Max Width %d.\n",
 479                    res->min_width, max_width);
 480         xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
 481                    "Min height %d, Max Height %d.\n",
 482                    res->min_height, max_height);
 483         drmModeFreeResources(res);
 484     }
 485
 486
 487     if (xf86ReturnOptValBool(ms->Options, OPTION_SW_CURSOR, FALSE)) {
 488         ms->SWCursor = TRUE;
 489     }
 490
 491     xorg_crtc_init(pScrn);
 492     xorg_output_init(pScrn);
 493
 494     if (cust && cust->winsys_pre_init && !cust->winsys_pre_init(cust, ms->fd))
 495         return FALSE;
 496
 497     if (!xf86InitialConfiguration(pScrn, TRUE)) {
 498         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes.\n");
 499         return FALSE;
 500     }
 501
 502     /*
 503      * If the driver can do gamma correction, it should call xf86SetGamma() here.
 504      */
 505     {
 506         Gamma zeros = { 0.0, 0.0, 0.0 };
 507
 508         if (!xf86SetGamma(pScrn, zeros)) {
 509             return FALSE;
 510         }
 511     }
 512
 513     if (pScrn->modes == NULL) {
 514         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No modes.\n");
 515         return FALSE;
 516     }
 517
 518     pScrn->currentMode = pScrn->modes;
 519
 520     /* Set display resolution */
 521     xf86SetDpi(pScrn, 0, 0);
 522
 523     /* Load the required sub modules */
 524     if (!xf86LoadSubModule(pScrn, "fb"))
 525         return FALSE;
 526
 527     /* XXX: these aren't needed when we are using libkms */
 528     if (!xf86LoadSubModule(pScrn, "exa"))
 529         return FALSE;
 530
 531 #ifdef DRI2
 532     if (!xf86LoadSubModule(pScrn, "dri2"))
 533         return FALSE;
 534 #endif
 535
 536     return TRUE;
 537 }
 538
 539 static void drv_block_handler(int i, pointer blockData, pointer pTimeout,
 540                               pointer pReadmask)
 541 {
 542     ScreenPtr pScreen = screenInfo.screens[i];
 543     modesettingPtr ms = modesettingPTR(xf86Screens[pScreen->myNum]);
 544
 545     pScreen->BlockHandler = ms->blockHandler;
 546     pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);
 547     pScreen->BlockHandler = drv_block_handler;
 548
 549     if (ms->ctx) {
 550        int j;
 551
 552        ms->ctx->flush(ms->ctx, PIPE_FLUSH_RENDER_CACHE,
 553                       ms->dirtyThrottling ?
 554                       &ms->fence[XORG_NR_FENCES-1] :
 555                       NULL);
 556
 557        if (ms->dirtyThrottling) {
 558            if (ms->fence[0])
 559                ms->ctx->screen->fence_finish(ms->ctx->screen,
 560                                              ms->fence[0], 0);
 561
 562            /* The amount of rendering generated by a block handler can be
 563             * quite small.  Let us get a fair way ahead of hardware before
 564             * throttling.
 565             */
 566            for (j = 0; j < XORG_NR_FENCES - 1; j++)
 567                ms->screen->fence_reference(ms->screen,
 568                                            &ms->fence[j],
 569                                            ms->fence[j+1]);
 570
 571            ms->screen->fence_reference(ms->screen,
 572                                        &ms->fence[XORG_NR_FENCES-1],
 573                                        NULL);
 574        }
 575     }
 576
 577
 578 #ifdef DRM_MODE_FEATURE_DIRTYFB
 579     {
 580         RegionPtr dirty = DamageRegion(ms->damage);
 581         unsigned num_cliprects = REGION_NUM_RECTS(dirty);
 582
 583         if (num_cliprects) {
 584             drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
 585             BoxPtr rect = REGION_RECTS(dirty);
 586             int i, ret;
 587
 588             /* XXX no need for copy? */
 589             for (i = 0; i < num_cliprects; i++, rect++) {
 590                 clip[i].x1 = rect->x1;
 591                 clip[i].y1 = rect->y1;
 592                 clip[i].x2 = rect->x2;
 593                 clip[i].y2 = rect->y2;
 594             }
 595
 596             /* TODO query connector property to see if this is needed */
 597             ret = drmModeDirtyFB(ms->fd, ms->fb_id, clip, num_cliprects);
 598             if (ret) {
 599                 debug_printf("%s: failed to send dirty (%i, %s)\n",
 600                              __func__, ret, strerror(-ret));
 601             }
 602
 603             DamageEmpty(ms->damage);
 604         }
 605     }
 606 #endif
 607 }
 608
 609 static Bool
 610 drv_create_screen_resources(ScreenPtr pScreen)
 611 {
 612     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 613     modesettingPtr ms = modesettingPTR(pScrn);
 614     PixmapPtr rootPixmap;
 615     Bool ret;
 616
 617     ms->noEvict = TRUE;
 618
 619     pScreen->CreateScreenResources = ms->createScreenResources;
 620     ret = pScreen->CreateScreenResources(pScreen);
 621     pScreen->CreateScreenResources = drv_create_screen_resources;
 622
 623     ms->bind_front_buffer(pScrn);
 624
 625     ms->noEvict = FALSE;
 626
 627     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 628
 629 #ifdef DRM_MODE_FEATURE_DIRTYFB
 630     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 631     ms->damage = DamageCreate(NULL, NULL, DamageReportNone, TRUE,
 632                               pScreen, rootPixmap);
 633
 634     if (ms->damage) {
 635        DamageRegister(&rootPixmap->drawable, ms->damage);
 636
 637        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Damage tracking initialized\n");
 638     } else {
 639        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 640                   "Failed to create screen damage record\n");
 641        return FALSE;
 642     }
 643 #else
 644     (void)rootPixmap;
 645 #endif
 646
 647     return ret;
 648 }
 649
 650 static Bool
 651 drv_set_master(ScrnInfoPtr pScrn)
 652 {
 653     modesettingPtr ms = modesettingPTR(pScrn);
 654
 655     if (!ms->isMaster && drmSetMaster(ms->fd) != 0) {
 656         if (errno == EINVAL) {
 657             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 658                        "drmSetMaster failed: 2.6.29 or newer kernel required for "
 659                        "multi-server DRI\n");
 660         } else {
 661             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 662                        "drmSetMaster failed: %s\n", strerror(errno));
 663         }
 664         return FALSE;
 665     }
 666
 667     ms->isMaster = TRUE;
 668     return TRUE;
 669 }
 670
 671
 672 static Bool
 673 drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 674 {
 675     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 676     modesettingPtr ms = modesettingPTR(pScrn);
 677     VisualPtr visual;
 678     CustomizerPtr cust = ms->cust;
 679     MessageType from_st;
 680     MessageType from_dt;
 681
 682     if (!drv_set_master(pScrn))
 683         return FALSE;
 684
 685     if (!drv_init_front_buffer_functions(pScrn)) {
 686         FatalError("Could not init front buffer manager");
 687         return FALSE;
 688     }
 689
 690     pScrn->pScreen = pScreen;
 691
 692     /* HW dependent - FIXME */
 693     pScrn->displayWidth = pScrn->virtualX;
 694
 695     miClearVisualTypes();
 696
 697     if (!miSetVisualTypes(pScrn->depth,
 698                           miGetDefaultVisualMask(pScrn->depth),
 699                           pScrn->rgbBits, pScrn->defaultVisual))
 700         return FALSE;
 701
 702     if (!miSetPixmapDepths())
 703         return FALSE;
 704
 705     pScrn->memPhysBase = 0;
 706     pScrn->fbOffset = 0;
 707
 708     if (!fbScreenInit(pScreen, NULL,
 709                       pScrn->virtualX, pScrn->virtualY,
 710                       pScrn->xDpi, pScrn->yDpi,
 711                       pScrn->displayWidth, pScrn->bitsPerPixel))
 712         return FALSE;
 713
 714     if (pScrn->bitsPerPixel > 8) {
 715         /* Fixup RGB ordering */
 716         visual = pScreen->visuals + pScreen->numVisuals;
 717         while (--visual >= pScreen->visuals) {
 718             if ((visual->class | DynamicClass) == DirectColor) {
 719                 visual->offsetRed = pScrn->offset.red;
 720                 visual->offsetGreen = pScrn->offset.green;
 721                 visual->offsetBlue = pScrn->offset.blue;
 722                 visual->redMask = pScrn->mask.red;
 723                 visual->greenMask = pScrn->mask.green;
 724                 visual->blueMask = pScrn->mask.blue;
 725             }
 726         }
 727     }
 728
 729     fbPictureInit(pScreen, NULL, 0);
 730
 731     ms->blockHandler = pScreen->BlockHandler;
 732     pScreen->BlockHandler = drv_block_handler;
 733     ms->createScreenResources = pScreen->CreateScreenResources;
 734     pScreen->CreateScreenResources = drv_create_screen_resources;
 735
 736     xf86SetBlackWhitePixels(pScreen);
 737
 738     ms->accelerate_2d = xf86ReturnOptValBool(ms->Options, OPTION_2D_ACCEL, FALSE);
 739     ms->debug_fallback = xf86ReturnOptValBool(ms->Options, OPTION_DEBUG_FALLBACK, ms->accelerate_2d);
 740
 741     if (cust && cust->winsys_screen_init)
 742         cust->winsys_screen_init(cust);
 743
 744     ms->swapThrottling = cust ?  cust->swap_throttling : TRUE;
 745     from_st = xf86GetOptValBool(ms->Options, OPTION_THROTTLE_SWAP,
 746                                 &ms->swapThrottling) ?
 747         X_CONFIG : X_DEFAULT;
 748
 749     ms->dirtyThrottling = cust ?  cust->dirty_throttling : TRUE;
 750     from_dt = xf86GetOptValBool(ms->Options, OPTION_THROTTLE_DIRTY,
 751                                 &ms->dirtyThrottling) ?
 752         X_CONFIG : X_DEFAULT;
 753
 754     if (ms->screen) {
 755         ms->exa = xorg_exa_init(pScrn, ms->accelerate_2d);
 756
 757         xorg_xv_init(pScreen);
 758 #ifdef DRI2
 759         xorg_dri2_init(pScreen);
 760 #endif
 761     }
 762
 763     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 764     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "# Usefull debugging info follows #\n");
 765     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 766     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Using %s backend\n",
 767                ms->screen ? "Gallium3D" : "libkms");
 768     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "2D Acceleration is %s\n",
 769                ms->screen && ms->accelerate_2d ? "enabled" : "disabled");
 770     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Fallback debugging is %s\n",
 771                ms->debug_fallback ? "enabled" : "disabled");
 772 #ifdef DRI2
 773     xf86DrvMsg(pScrn->scrnIndex, ms->from_3D, "3D Acceleration is %s\n",
 774                ms->screen ? "enabled" : "disabled");
 775 #else
 776     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "3D Acceleration is disabled\n");
 777 #endif
 778     xf86DrvMsg(pScrn->scrnIndex, from_st, "Swap Throttling is %s.\n",
 779                ms->swapThrottling ? "enabled" : "disabled");
 780     xf86DrvMsg(pScrn->scrnIndex, from_dt, "Dirty Throttling is %s.\n",
 781                ms->dirtyThrottling ? "enabled" : "disabled");
 782
 783     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 784
 785     miInitializeBackingStore(pScreen);
 786     xf86SetBackingStore(pScreen);
 787     xf86SetSilkenMouse(pScreen);
 788     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
 789
 790     /* Need to extend HWcursor support to handle mask interleave */
 791     if (!ms->SWCursor)
 792         xf86_cursors_init(pScreen, 64, 64,
 793                           HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 |
 794                           HARDWARE_CURSOR_ARGB);
 795
 796     /* Must force it before EnterVT, so we are in control of VT and
 797      * later memory should be bound when allocating, e.g rotate_mem */
 798     pScrn->vtSema = TRUE;
 799
 800     pScreen->SaveScreen = xf86SaveScreen;
 801     ms->CloseScreen = pScreen->CloseScreen;
 802     pScreen->CloseScreen = drv_close_screen;
 803
 804     if (!xf86CrtcScreenInit(pScreen))
 805         return FALSE;
 806
 807     if (!miCreateDefColormap(pScreen))
 808         return FALSE;
 809
 810     xf86DPMSInit(pScreen, xf86DPMSSet, 0);
 811
 812     if (serverGeneration == 1)
 813         xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
 814
 815     return drv_enter_vt(scrnIndex, 1);
 816 }
 817
 818 static void
 819 drv_adjust_frame(int scrnIndex, int x, int y, int flags)
 820 {
 821     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 822     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 823     xf86OutputPtr output = config->output[config->compat_output];
 824     xf86CrtcPtr crtc = output->crtc;
 825
 826     if (crtc && crtc->enabled) {
 827         crtc->funcs->set_mode_major(crtc, pScrn->currentMode,
 828                                     RR_Rotate_0, x, y);
 829         crtc->x = output->initial_x + x;
 830         crtc->y = output->initial_y + y;
 831     }
 832 }
 833
 834 static void
 835 drv_free_screen(int scrnIndex, int flags)
 836 {
 837     drv_free_rec(xf86Screens[scrnIndex]);
 838 }
 839
 840 static void
 841 drv_leave_vt(int scrnIndex, int flags)
 842 {
 843     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 844     modesettingPtr ms = modesettingPTR(pScrn);
 845     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 846     CustomizerPtr cust = ms->cust;
 847     int o;
 848
 849     if (cust && cust->winsys_leave_vt)
 850         cust->winsys_leave_vt(cust);
 851
 852     for (o = 0; o < config->num_crtc; o++) {
 853         xf86CrtcPtr crtc = config->crtc[o];
 854
 855         xorg_crtc_cursor_destroy(crtc);
 856
 857         if (crtc->rotatedPixmap || crtc->rotatedData) {
 858             crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
 859                                         crtc->rotatedData);
 860             crtc->rotatedPixmap = NULL;
 861             crtc->rotatedData = NULL;
 862         }
 863     }
 864
 865     drmModeRmFB(ms->fd, ms->fb_id);
 866     ms->fb_id = -1;
 867
 868     /* idle hardware */
 869     if (!ms->kms)
 870         drv_cleanup_fences(pScrn);
 871
 872     if (drmDropMaster(ms->fd))
 873         xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 874                    "drmDropMaster failed: %s\n", strerror(errno));
 875
 876     ms->isMaster = FALSE;
 877     pScrn->vtSema = FALSE;
 878 }
 879
 880 /*
 881  * This gets called when gaining control of the VT, and from ScreenInit().
 882  */
 883 static Bool
 884 drv_enter_vt(int scrnIndex, int flags)
 885 {
 886     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 887     modesettingPtr ms = modesettingPTR(pScrn);
 888     CustomizerPtr cust = ms->cust;
 889
 890     if (!drv_set_master(pScrn))
 891         return FALSE;
 892
 893     if (!ms->create_front_buffer(pScrn))
 894         return FALSE;
 895
 896     if (!flags && !ms->bind_front_buffer(pScrn))
 897         return FALSE;
 898
 899     if (!xf86SetDesiredModes(pScrn))
 900         return FALSE;
 901
 902     if (cust && cust->winsys_enter_vt)
 903         cust->winsys_enter_vt(cust);
 904
 905     return TRUE;
 906 }
 907
 908 static Bool
 909 drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags)
 910 {
 911     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 912
 913     return xf86SetSingleMode(pScrn, mode, RR_Rotate_0);
 914 }
 915
 916 static Bool
 917 drv_close_screen(int scrnIndex, ScreenPtr pScreen)
 918 {
 919     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 920     modesettingPtr ms = modesettingPTR(pScrn);
 921     CustomizerPtr cust = ms->cust;
 922
 923     if (ms->cursor) {
 924        FreeCursor(ms->cursor, None);
 925        ms->cursor = NULL;
 926     }
 927
 928     if (cust && cust->winsys_screen_close)
 929         cust->winsys_screen_close(cust);
 930
 931 #ifdef DRI2
 932     if (ms->screen)
 933         xorg_dri2_close(pScreen);
 934 #endif
 935
 936     pScreen->BlockHandler = ms->blockHandler;
 937     pScreen->CreateScreenResources = ms->createScreenResources;
 938
 939 #ifdef DRM_MODE_FEATURE_DIRTYFB
 940     if (ms->damage) {
 941         DamageUnregister(&pScreen->GetScreenPixmap(pScreen)->drawable, ms->damage);
 942         DamageDestroy(ms->damage);
 943         ms->damage = NULL;
 944     }
 945 #endif
 946
 947     drmModeRmFB(ms->fd, ms->fb_id);
 948     ms->destroy_front_buffer(pScrn);
 949
 950     if (ms->exa)
 951         xorg_exa_close(pScrn);
 952     ms->exa = NULL;
 953
 954     /* calls drop master make sure we don't talk to 3D HW after that */
 955     if (pScrn->vtSema) {
 956         drv_leave_vt(scrnIndex, 0);
 957     }
 958
 959     pScrn->vtSema = FALSE;
 960     pScreen->CloseScreen = ms->CloseScreen;
 961
 962     return (*pScreen->CloseScreen) (scrnIndex, pScreen);
 963 }
 964
 965 static ModeStatus
 966 drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
 967 {
 968     return MODE_OK;
 969 }
 970
 971
 972 /*
 973  * Front buffer backing store functions.
 974  */
 975
 976 static Bool
 977 drv_destroy_front_buffer_ga3d(ScrnInfoPtr pScrn)
 978 {
 979     modesettingPtr ms = modesettingPTR(pScrn);
 980
 981     if (!ms->root_texture)
 982         return TRUE;
 983
 984     if (ms->fb_id != -1) {
 985         drmModeRmFB(ms->fd, ms->fb_id);
 986         ms->fb_id = -1;
 987     }
 988
 989     pipe_resource_reference(&ms->root_texture, NULL);
 990     return TRUE;
 991 }
 992
 993 static Bool
 994 drv_create_front_buffer_ga3d(ScrnInfoPtr pScrn)
 995 {
 996     modesettingPtr ms = modesettingPTR(pScrn);
 997     struct pipe_resource *tex;
 998     struct winsys_handle whandle;
 999     unsigned fb_id;
1000     int ret;
1001
1002     ms->noEvict = TRUE;
1003
1004     tex = xorg_exa_create_root_texture(pScrn, pScrn->virtualX, pScrn->virtualY,
1005                                        pScrn->depth, pScrn->bitsPerPixel);
1006
1007     if (!tex)
1008         return FALSE;
1009
1010     memset(&whandle, 0, sizeof(whandle));
1011     whandle.type = DRM_API_HANDLE_TYPE_KMS;
1012
1013     if (!ms->screen->resource_get_handle(ms->screen, tex, &whandle))
1014         goto err_destroy;
1015
1016     ret = drmModeAddFB(ms->fd,
1017                        pScrn->virtualX,
1018                        pScrn->virtualY,
1019                        pScrn->depth,
1020                        pScrn->bitsPerPixel,
1021                        whandle.stride,
1022                        whandle.handle,
1023                        &fb_id);
1024     if (ret) {
1025         debug_printf("%s: failed to create framebuffer (%i, %s)\n",
1026                      __func__, ret, strerror(-ret));
1027         goto err_destroy;
1028     }
1029
1030     if (!drv_destroy_front_buffer_ga3d(pScrn))
1031         FatalError("%s: failed to take down old framebuffer\n", __func__);
1032
1033     pScrn->frameX0 = 0;
1034     pScrn->frameY0 = 0;
1035     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
1036
1037     pipe_resource_reference(&ms->root_texture, tex);
1038     pipe_resource_reference(&tex, NULL);
1039     ms->fb_id = fb_id;
1040
1041     return TRUE;
1042
1043 err_destroy:
1044     pipe_resource_reference(&tex, NULL);
1045     return FALSE;
1046 }
1047
1048 static Bool
1049 drv_bind_front_buffer_ga3d(ScrnInfoPtr pScrn)
1050 {
1051     modesettingPtr ms = modesettingPTR(pScrn);
1052     ScreenPtr pScreen = pScrn->pScreen;
1053     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1054     struct pipe_resource *check;
1055
1056     xorg_exa_set_displayed_usage(rootPixmap);
1057     xorg_exa_set_shared_usage(rootPixmap);
1058     xorg_exa_set_texture(rootPixmap, ms->root_texture);
1059     if (!pScreen->ModifyPixmapHeader(rootPixmap, -1, -1, -1, -1, -1, NULL))
1060         FatalError("Couldn't adjust screen pixmap\n");
1061
1062     check = xorg_exa_get_texture(rootPixmap);
1063     if (ms->root_texture != check)
1064         FatalError("Created new root texture\n");
1065
1066     pipe_resource_reference(&check, NULL);
1067     return TRUE;
1068 }
1069
1070 #ifdef HAVE_LIBKMS
1071 static Bool
1072 drv_destroy_front_buffer_kms(ScrnInfoPtr pScrn)
1073 {
1074     modesettingPtr ms = modesettingPTR(pScrn);
1075     ScreenPtr pScreen = pScrn->pScreen;
1076     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1077
1078     /* XXX Do something with the rootPixmap.
1079      * This currently works fine but if we are getting crashes in
1080      * the fb functions after VT switches maybe look more into it.
1081      */
1082     (void)rootPixmap;
1083
1084     if (!ms->root_bo)
1085         return TRUE;
1086
1087     if (ms->fb_id != -1) {
1088         drmModeRmFB(ms->fd, ms->fb_id);
1089         ms->fb_id = -1;
1090     }
1091
1092     kms_bo_unmap(ms->root_bo);
1093     kms_bo_destroy(&ms->root_bo);
1094     return TRUE;
1095 }
1096
1097 static Bool
1098 drv_create_front_buffer_kms(ScrnInfoPtr pScrn)
1099 {
1100     modesettingPtr ms = modesettingPTR(pScrn);
1101     unsigned handle, stride;
1102     struct kms_bo *bo;
1103     unsigned attr[8];
1104     unsigned fb_id;
1105     int ret;
1106
1107     attr[0] = KMS_BO_TYPE;
1108 #ifdef KMS_BO_TYPE_SCANOUT_X8R8G8B8
1109     attr[1] = KMS_BO_TYPE_SCANOUT_X8R8G8B8;
1110 #else
1111     attr[1] = KMS_BO_TYPE_SCANOUT;
1112 #endif
1113     attr[2] = KMS_WIDTH;
1114     attr[3] = pScrn->virtualX;
1115     attr[4] = KMS_HEIGHT;
1116     attr[5] = pScrn->virtualY;
1117     attr[6] = 0;
1118
1119     if (kms_bo_create(ms->kms, attr, &bo))
1120         return FALSE;
1121
1122     if (kms_bo_get_prop(bo, KMS_PITCH, &stride))
1123         goto err_destroy;
1124
1125     if (kms_bo_get_prop(bo, KMS_HANDLE, &handle))
1126         goto err_destroy;
1127
1128     ret = drmModeAddFB(ms->fd,
1129                        pScrn->virtualX,
1130                        pScrn->virtualY,
1131                        pScrn->depth,
1132                        pScrn->bitsPerPixel,
1133                        stride,
1134                        handle,
1135                        &fb_id);
1136     if (ret) {
1137         debug_printf("%s: failed to create framebuffer (%i, %s)",
1138                      __func__, ret, strerror(-ret));
1139         goto err_destroy;
1140     }
1141
1142     if (!drv_destroy_front_buffer_kms(pScrn))
1143         FatalError("%s: could not takedown old bo", __func__);
1144
1145     pScrn->frameX0 = 0;
1146     pScrn->frameY0 = 0;
1147     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
1148     ms->root_bo = bo;
1149     ms->fb_id = fb_id;
1150
1151     return TRUE;
1152
1153 err_destroy:
1154     kms_bo_destroy(&bo);
1155     return FALSE;
1156 }
1157
1158 static Bool
1159 drv_bind_front_buffer_kms(ScrnInfoPtr pScrn)
1160 {
1161     modesettingPtr ms = modesettingPTR(pScrn);
1162     ScreenPtr pScreen = pScrn->pScreen;
1163     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1164     unsigned stride;
1165     void *ptr;
1166
1167     if (kms_bo_get_prop(ms->root_bo, KMS_PITCH, &stride))
1168         return FALSE;
1169
1170     if (kms_bo_map(ms->root_bo, &ptr))
1171         goto err_destroy;
1172
1173     pScreen->ModifyPixmapHeader(rootPixmap,
1174                                 pScrn->virtualX,
1175                                 pScrn->virtualY,
1176                                 pScreen->rootDepth,
1177                                 pScrn->bitsPerPixel,
1178                                 stride,
1179                                 ptr);
1180
1181     /* This a hack to work around EnableDisableFBAccess setting the pointer
1182      * the real fix would be to replace pScrn->EnableDisableFBAccess hook
1183      * and set the rootPixmap->devPrivate.ptr to something valid before that.
1184      *
1185      * But in its infinit visdome something uses either this some times before
1186      * that, so our hook doesn't get called before the crash happens.
1187      */
1188     pScrn->pixmapPrivate.ptr = ptr;
1189
1190     return TRUE;
1191
1192 err_destroy:
1193     kms_bo_destroy(&ms->root_bo);
1194     return FALSE;
1195 }
1196 #endif /* HAVE_LIBKMS */
1197
1198 static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn)
1199 {
1200     modesettingPtr ms = modesettingPTR(pScrn);
1201     if (ms->screen) {
1202         ms->destroy_front_buffer = drv_destroy_front_buffer_ga3d;
1203         ms->create_front_buffer = drv_create_front_buffer_ga3d;
1204         ms->bind_front_buffer = drv_bind_front_buffer_ga3d;
1205 #ifdef HAVE_LIBKMS
1206     } else if (ms->kms) {
1207         ms->destroy_front_buffer = drv_destroy_front_buffer_kms;
1208         ms->create_front_buffer = drv_create_front_buffer_kms;
1209         ms->bind_front_buffer = drv_bind_front_buffer_kms;
1210 #endif
1211     } else
1212         return FALSE;
1213
1214     return TRUE;
1215 }
1216
1217 CustomizerPtr xorg_customizer(ScrnInfoPtr pScrn)
1218 {
1219     return modesettingPTR(pScrn)->cust;
1220 }
1221
1222 Bool xorg_has_gallium(ScrnInfoPtr pScrn)
1223 {
1224     return modesettingPTR(pScrn)->screen != NULL;
1225 }
1226
1227 /* vim: set sw=4 ts=8 sts=4: */