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 "pipe/p_context.h"
  55 #include "xorg_tracker.h"
  56 #include "xorg_winsys.h"
  57
  58 #ifdef HAVE_LIBKMS
  59 #include "libkms.h"
  60 #endif
  61
  62 /*
  63  * Functions and symbols exported to Xorg via pointers.
  64  */
  65
  66 static Bool drv_pre_init(ScrnInfoPtr pScrn, int flags);
  67 static Bool drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc,
  68                             char **argv);
  69 static Bool drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags);
  70 static void drv_adjust_frame(int scrnIndex, int x, int y, int flags);
  71 static Bool drv_enter_vt(int scrnIndex, int flags);
  72 static void drv_leave_vt(int scrnIndex, int flags);
  73 static void drv_free_screen(int scrnIndex, int flags);
  74 static ModeStatus drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose,
  75                                  int flags);
  76
  77 typedef enum
  78 {
  79     OPTION_SW_CURSOR,
  80     OPTION_2D_ACCEL,
  81     OPTION_DEBUG_FALLBACK,
  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     {OPTION_DEBUG_FALLBACK, "DebugFallback", OPTV_BOOLEAN, {0}, FALSE},
  88     {-1, NULL, OPTV_NONE, {0}, FALSE}
  89 };
  90
  91
  92 /*
  93  * Exported Xorg driver functions to winsys
  94  */
  95
  96 const OptionInfoRec *
  97 xorg_tracker_available_options(int chipid, int busid)
  98 {
  99     return drv_options;
 100 }
 101
 102 void
 103 xorg_tracker_set_functions(ScrnInfoPtr scrn)
 104 {
 105     scrn->PreInit = drv_pre_init;
 106     scrn->ScreenInit = drv_screen_init;
 107     scrn->SwitchMode = drv_switch_mode;
 108     scrn->AdjustFrame = drv_adjust_frame;
 109     scrn->EnterVT = drv_enter_vt;
 110     scrn->LeaveVT = drv_leave_vt;
 111     scrn->FreeScreen = drv_free_screen;
 112     scrn->ValidMode = drv_valid_mode;
 113 }
 114
 115 Bool
 116 xorg_tracker_have_modesetting(ScrnInfoPtr pScrn, struct pci_device *device)
 117 {
 118     char *BusID = xalloc(64);
 119     sprintf(BusID, "pci:%04x:%02x:%02x.%d",
 120             device->domain, device->bus,
 121             device->dev, device->func);
 122
 123     if (drmCheckModesettingSupported(BusID)) {
 124         xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
 125                        "Drm modesetting not supported %s\n", BusID);
 126         xfree(BusID);
 127         return FALSE;
 128     }
 129
 130     xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
 131                    "Drm modesetting supported on %s\n", BusID);
 132
 133     xfree(BusID);
 134     return TRUE;
 135 }
 136
 137
 138 /*
 139  * Internal function definitions
 140  */
 141
 142 static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn);
 143 static Bool drv_close_screen(int scrnIndex, ScreenPtr pScreen);
 144 static Bool drv_save_hw_state(ScrnInfoPtr pScrn);
 145 static Bool drv_restore_hw_state(ScrnInfoPtr pScrn);
 146
 147
 148 /*
 149  * Internal functions
 150  */
 151
 152 static Bool
 153 drv_get_rec(ScrnInfoPtr pScrn)
 154 {
 155     if (pScrn->driverPrivate)
 156         return TRUE;
 157
 158     pScrn->driverPrivate = xnfcalloc(1, sizeof(modesettingRec));
 159
 160     return TRUE;
 161 }
 162
 163 static void
 164 drv_free_rec(ScrnInfoPtr pScrn)
 165 {
 166     if (!pScrn)
 167         return;
 168
 169     if (!pScrn->driverPrivate)
 170         return;
 171
 172     xfree(pScrn->driverPrivate);
 173
 174     pScrn->driverPrivate = NULL;
 175 }
 176
 177 static void
 178 drv_probe_ddc(ScrnInfoPtr pScrn, int index)
 179 {
 180     ConfiguredMonitor = NULL;
 181 }
 182
 183 static Bool
 184 drv_crtc_resize(ScrnInfoPtr pScrn, int width, int height)
 185 {
 186     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 187     modesettingPtr ms = modesettingPTR(pScrn);
 188     ScreenPtr pScreen = pScrn->pScreen;
 189     int old_width, old_height;
 190     PixmapPtr rootPixmap;
 191     int i;
 192
 193     if (width == pScrn->virtualX && height == pScrn->virtualY)
 194         return TRUE;
 195
 196     old_width = pScrn->virtualX;
 197     old_height = pScrn->virtualY;
 198     pScrn->virtualX = width;
 199     pScrn->virtualY = height;
 200
 201     /* ms->create_front_buffer will remove the old front buffer */
 202
 203     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 204     if (!pScreen->ModifyPixmapHeader(rootPixmap, width, height, -1, -1, -1, NULL))
 205         goto error_modify;
 206
 207     pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
 208
 209     if (!ms->create_front_buffer(pScrn) || !ms->bind_front_buffer(pScrn))
 210         goto error_create;
 211
 212     /*
 213      * create && bind will turn off all crtc(s) in the kernel so we need to
 214      * re-enable all the crtcs again. For real HW we might want to do this
 215      * before destroying the old framebuffer.
 216      */
 217     for (i = 0; i < xf86_config->num_crtc; i++) {
 218         xf86CrtcPtr crtc = xf86_config->crtc[i];
 219
 220         if (!crtc->enabled)
 221             continue;
 222
 223         crtc->funcs->set_mode_major(crtc, &crtc->mode, crtc->rotation, crtc->x, crtc->y);
 224     }
 225
 226     return TRUE;
 227
 228     /*
 229      * This is the error recovery path.
 230      */
 231 error_create:
 232     if (!pScreen->ModifyPixmapHeader(rootPixmap, old_width, old_height, -1, -1, -1, NULL))
 233         FatalError("failed to resize rootPixmap error path\n");
 234
 235     pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
 236
 237 error_modify:
 238     pScrn->virtualX = old_width;
 239     pScrn->virtualY = old_height;
 240
 241     if (ms->create_front_buffer(pScrn) && ms->bind_front_buffer(pScrn))
 242         return FALSE;
 243
 244     FatalError("failed to setup old framebuffer\n");
 245     return FALSE;
 246 }
 247
 248 static const xf86CrtcConfigFuncsRec crtc_config_funcs = {
 249     .resize = drv_crtc_resize
 250 };
 251
 252 static Bool
 253 drv_init_drm(ScrnInfoPtr pScrn)
 254 {
 255     modesettingPtr ms = modesettingPTR(pScrn);
 256
 257     /* deal with server regeneration */
 258     if (ms->fd < 0) {
 259         char *BusID;
 260
 261         BusID = xalloc(64);
 262         sprintf(BusID, "PCI:%d:%d:%d",
 263                 ((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
 264                 ms->PciInfo->dev, ms->PciInfo->func
 265             );
 266
 267
 268         ms->api = drm_api_create();
 269         ms->fd = drmOpen(ms->api ? ms->api->driver_name : NULL, BusID);
 270         xfree(BusID);
 271
 272         if (ms->fd >= 0)
 273             return TRUE;
 274
 275         if (ms->api && ms->api->destroy)
 276             ms->api->destroy(ms->api);
 277
 278         ms->api = NULL;
 279
 280         return FALSE;
 281     }
 282
 283     return TRUE;
 284 }
 285
 286 static Bool
 287 drv_close_drm(ScrnInfoPtr pScrn)
 288 {
 289     modesettingPtr ms = modesettingPTR(pScrn);
 290
 291     if (ms->api && ms->api->destroy)
 292         ms->api->destroy(ms->api);
 293     ms->api = NULL;
 294
 295     drmClose(ms->fd);
 296     ms->fd = -1;
 297
 298     return TRUE;
 299 }
 300
 301 static Bool
 302 drv_init_resource_management(ScrnInfoPtr pScrn)
 303 {
 304     modesettingPtr ms = modesettingPTR(pScrn);
 305     /*
 306     ScreenPtr pScreen = pScrn->pScreen;
 307     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
 308     Bool fbAccessDisabled;
 309     CARD8 *fbstart;
 310      */
 311
 312     if (ms->screen || ms->kms)
 313         return TRUE;
 314
 315     if (ms->api) {
 316         ms->screen = ms->api->create_screen(ms->api, ms->fd, NULL);
 317
 318         if (ms->screen)
 319             return TRUE;
 320
 321         if (ms->api->destroy)
 322             ms->api->destroy(ms->api);
 323
 324         ms->api = NULL;
 325     }
 326
 327 #ifdef HAVE_LIBKMS
 328     if (!kms_create(ms->fd, &ms->kms))
 329         return TRUE;
 330 #endif
 331
 332     return FALSE;
 333 }
 334
 335 static Bool
 336 drv_close_resource_management(ScrnInfoPtr pScrn)
 337 {
 338     modesettingPtr ms = modesettingPTR(pScrn);
 339     int i;
 340
 341     if (ms->screen) {
 342         assert(ms->ctx == NULL);
 343
 344         for (i = 0; i < XORG_NR_FENCES; i++) {
 345             if (ms->fence[i]) {
 346                 ms->screen->fence_finish(ms->screen, ms->fence[i], 0);
 347                 ms->screen->fence_reference(ms->screen, &ms->fence[i], NULL);
 348             }
 349         }
 350         ms->screen->destroy(ms->screen);
 351     }
 352     ms->screen = NULL;
 353
 354 #ifdef HAVE_LIBKMS
 355     if (ms->kms)
 356         kms_destroy(&ms->kms);
 357 #endif
 358
 359     return TRUE;
 360 }
 361
 362 static Bool
 363 drv_pre_init(ScrnInfoPtr pScrn, int flags)
 364 {
 365     xf86CrtcConfigPtr xf86_config;
 366     modesettingPtr ms;
 367     rgb defaultWeight = { 0, 0, 0 };
 368     EntityInfoPtr pEnt;
 369     EntPtr msEnt = NULL;
 370     int max_width, max_height;
 371     CustomizerPtr cust;
 372
 373     if (pScrn->numEntities != 1)
 374         return FALSE;
 375
 376     pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
 377
 378     if (flags & PROBE_DETECT) {
 379         drv_probe_ddc(pScrn, pEnt->index);
 380         return TRUE;
 381     }
 382
 383     cust = (CustomizerPtr) pScrn->driverPrivate;
 384     pScrn->driverPrivate = NULL;
 385
 386     /* Allocate driverPrivate */
 387     if (!drv_get_rec(pScrn))
 388         return FALSE;
 389
 390     ms = modesettingPTR(pScrn);
 391     ms->SaveGeneration = -1;
 392     ms->pEnt = pEnt;
 393     ms->cust = cust;
 394
 395     pScrn->displayWidth = 640;         /* default it */
 396
 397     if (ms->pEnt->location.type != BUS_PCI)
 398         return FALSE;
 399
 400     ms->PciInfo = xf86GetPciInfoForEntity(ms->pEnt->index);
 401
 402     /* Allocate an entity private if necessary */
 403     if (xf86IsEntityShared(pScrn->entityList[0])) {
 404         FatalError("Entity");
 405 #if 0
 406         msEnt = xf86GetEntityPrivate(pScrn->entityList[0],
 407                                      modesettingEntityIndex)->ptr;
 408         ms->entityPrivate = msEnt;
 409 #else
 410         (void)msEnt;
 411 #endif
 412     } else
 413         ms->entityPrivate = NULL;
 414
 415     if (xf86IsEntityShared(pScrn->entityList[0])) {
 416         if (xf86IsPrimInitDone(pScrn->entityList[0])) {
 417             /* do something */
 418         } else {
 419             xf86SetPrimInitDone(pScrn->entityList[0]);
 420         }
 421     }
 422
 423     ms->fd = -1;
 424     ms->api = NULL;
 425     if (!drv_init_drm(pScrn))
 426         return FALSE;
 427
 428     pScrn->monitor = pScrn->confScreen->monitor;
 429     pScrn->progClock = TRUE;
 430     pScrn->rgbBits = 8;
 431
 432     if (!xf86SetDepthBpp
 433         (pScrn, 0, 0, 0,
 434          PreferConvert24to32 | SupportConvert24to32 | Support32bppFb))
 435         return FALSE;
 436
 437     switch (pScrn->depth) {
 438     case 15:
 439     case 16:
 440     case 24:
 441         break;
 442     default:
 443         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 444                    "Given depth (%d) is not supported by the driver\n",
 445                    pScrn->depth);
 446         return FALSE;
 447     }
 448     xf86PrintDepthBpp(pScrn);
 449
 450     if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
 451         return FALSE;
 452     if (!xf86SetDefaultVisual(pScrn, -1))
 453         return FALSE;
 454
 455     /* Process the options */
 456     xf86CollectOptions(pScrn, NULL);
 457     if (!(ms->Options = xalloc(sizeof(drv_options))))
 458         return FALSE;
 459     memcpy(ms->Options, drv_options, sizeof(drv_options));
 460     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, ms->Options);
 461
 462     /* Allocate an xf86CrtcConfig */
 463     xf86CrtcConfigInit(pScrn, &crtc_config_funcs);
 464     xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 465
 466     max_width = 2048;  /* A very low default */
 467     max_height = 2048; /* see screen_init */
 468     xf86CrtcSetSizeRange(pScrn, 320, 200, max_width, max_height);
 469
 470     if (xf86ReturnOptValBool(ms->Options, OPTION_SW_CURSOR, FALSE)) {
 471         ms->SWCursor = TRUE;
 472     }
 473
 474     drv_save_hw_state(pScrn);
 475
 476     xorg_crtc_init(pScrn);
 477     xorg_output_init(pScrn);
 478
 479     if (!xf86InitialConfiguration(pScrn, TRUE)) {
 480         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes.\n");
 481         drv_restore_hw_state(pScrn);
 482         return FALSE;
 483     }
 484
 485     drv_restore_hw_state(pScrn);
 486
 487     /*
 488      * If the driver can do gamma correction, it should call xf86SetGamma() here.
 489      */
 490     {
 491         Gamma zeros = { 0.0, 0.0, 0.0 };
 492
 493         if (!xf86SetGamma(pScrn, zeros)) {
 494             return FALSE;
 495         }
 496     }
 497
 498     if (pScrn->modes == NULL) {
 499         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No modes.\n");
 500         return FALSE;
 501     }
 502
 503     pScrn->currentMode = pScrn->modes;
 504
 505     /* Set display resolution */
 506     xf86SetDpi(pScrn, 0, 0);
 507
 508     /* Load the required sub modules */
 509     if (!xf86LoadSubModule(pScrn, "fb"))
 510         return FALSE;
 511
 512     /* XXX: these aren't needed when we are using libkms */
 513     if (!xf86LoadSubModule(pScrn, "exa"))
 514         return FALSE;
 515
 516 #ifdef DRI2
 517     if (!xf86LoadSubModule(pScrn, "dri2"))
 518         return FALSE;
 519 #endif
 520
 521     return TRUE;
 522 }
 523
 524 static Bool
 525 drv_save_hw_state(ScrnInfoPtr pScrn)
 526 {
 527     /*xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);*/
 528
 529     return TRUE;
 530 }
 531
 532 static Bool
 533 drv_restore_hw_state(ScrnInfoPtr pScrn)
 534 {
 535     /*xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);*/
 536
 537     return TRUE;
 538 }
 539
 540 static void drv_block_handler(int i, pointer blockData, pointer pTimeout,
 541                               pointer pReadmask)
 542 {
 543     ScreenPtr pScreen = screenInfo.screens[i];
 544     modesettingPtr ms = modesettingPTR(xf86Screens[pScreen->myNum]);
 545
 546     pScreen->BlockHandler = ms->blockHandler;
 547     pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);
 548     pScreen->BlockHandler = drv_block_handler;
 549
 550     if (ms->ctx) {
 551        int j;
 552
 553        ms->ctx->flush(ms->ctx, PIPE_FLUSH_RENDER_CACHE, &ms->fence[XORG_NR_FENCES-1]);
 554
 555        if (ms->fence[0])
 556           ms->ctx->screen->fence_finish(ms->ctx->screen, ms->fence[0], 0);
 557
 558        /* The amount of rendering generated by a block handler can be
 559         * quite small.  Let us get a fair way ahead of hardware before
 560         * throttling.
 561         */
 562        for (j = 0; j < XORG_NR_FENCES - 1; j++)
 563           ms->screen->fence_reference(ms->screen,
 564                                       &ms->fence[j],
 565                                       ms->fence[j+1]);
 566
 567        ms->screen->fence_reference(ms->screen,
 568                                    &ms->fence[XORG_NR_FENCES-1],
 569                                    NULL);
 570     }
 571
 572
 573 #ifdef DRM_MODE_FEATURE_DIRTYFB
 574     {
 575         RegionPtr dirty = DamageRegion(ms->damage);
 576         unsigned num_cliprects = REGION_NUM_RECTS(dirty);
 577
 578         if (num_cliprects) {
 579             drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
 580             BoxPtr rect = REGION_RECTS(dirty);
 581             int i, ret;
 582
 583             /* XXX no need for copy? */
 584             for (i = 0; i < num_cliprects; i++, rect++) {
 585                 clip[i].x1 = rect->x1;
 586                 clip[i].y1 = rect->y1;
 587                 clip[i].x2 = rect->x2;
 588                 clip[i].y2 = rect->y2;
 589             }
 590
 591             /* TODO query connector property to see if this is needed */
 592             ret = drmModeDirtyFB(ms->fd, ms->fb_id, clip, num_cliprects);
 593             if (ret) {
 594                 debug_printf("%s: failed to send dirty (%i, %s)\n",
 595                              __func__, ret, strerror(-ret));
 596             }
 597
 598             DamageEmpty(ms->damage);
 599         }
 600     }
 601 #endif
 602 }
 603
 604 static Bool
 605 drv_create_screen_resources(ScreenPtr pScreen)
 606 {
 607     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 608     modesettingPtr ms = modesettingPTR(pScrn);
 609     PixmapPtr rootPixmap;
 610     Bool ret;
 611
 612     ms->noEvict = TRUE;
 613
 614     pScreen->CreateScreenResources = ms->createScreenResources;
 615     ret = pScreen->CreateScreenResources(pScreen);
 616     pScreen->CreateScreenResources = drv_create_screen_resources;
 617
 618     ms->bind_front_buffer(pScrn);
 619
 620     ms->noEvict = FALSE;
 621
 622     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 623
 624 #ifdef DRM_MODE_FEATURE_DIRTYFB
 625     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 626     ms->damage = DamageCreate(NULL, NULL, DamageReportNone, TRUE,
 627                               pScreen, rootPixmap);
 628
 629     if (ms->damage) {
 630        DamageRegister(&rootPixmap->drawable, ms->damage);
 631
 632        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Damage tracking initialized\n");
 633     } else {
 634        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 635                   "Failed to create screen damage record\n");
 636        return FALSE;
 637     }
 638 #else
 639     (void)rootPixmap;
 640 #endif
 641
 642     return ret;
 643 }
 644
 645 static Bool
 646 drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 647 {
 648     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 649     modesettingPtr ms = modesettingPTR(pScrn);
 650     unsigned max_width, max_height;
 651     VisualPtr visual;
 652     CustomizerPtr cust = ms->cust;
 653
 654     if (!drv_init_drm(pScrn)) {
 655         FatalError("Could not init DRM");
 656         return FALSE;
 657     }
 658
 659     if (!drv_init_resource_management(pScrn)) {
 660         FatalError("Could not init resource management (!pipe_screen && !libkms)");
 661         return FALSE;
 662     }
 663
 664     if (!drv_init_front_buffer_functions(pScrn)) {
 665         FatalError("Could not init front buffer manager");
 666         return FALSE;
 667     }
 668
 669     /* get max width and height */
 670     {
 671         drmModeResPtr res;
 672         res = drmModeGetResources(ms->fd);
 673         max_width = res->max_width;
 674         max_height = res->max_height;
 675         drmModeFreeResources(res);
 676     }
 677
 678     if (ms->screen) {
 679         float maxf;
 680         int max;
 681         maxf = ms->screen->get_paramf(ms->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
 682         max = (1 << (int)(maxf - 1.0f));
 683         max_width = max < max_width ? max : max_width;
 684         max_height = max < max_height ? max : max_height;
 685     }
 686
 687     xf86CrtcSetSizeRange(pScrn, 1, 1, max_width, max_height);
 688
 689     pScrn->pScreen = pScreen;
 690
 691     /* HW dependent - FIXME */
 692     pScrn->displayWidth = pScrn->virtualX;
 693
 694     miClearVisualTypes();
 695
 696     if (!miSetVisualTypes(pScrn->depth,
 697                           miGetDefaultVisualMask(pScrn->depth),
 698                           pScrn->rgbBits, pScrn->defaultVisual))
 699         return FALSE;
 700
 701     if (!miSetPixmapDepths())
 702         return FALSE;
 703
 704     pScrn->memPhysBase = 0;
 705     pScrn->fbOffset = 0;
 706
 707     if (!fbScreenInit(pScreen, NULL,
 708                       pScrn->virtualX, pScrn->virtualY,
 709                       pScrn->xDpi, pScrn->yDpi,
 710                       pScrn->displayWidth, pScrn->bitsPerPixel))
 711         return FALSE;
 712
 713     if (pScrn->bitsPerPixel > 8) {
 714         /* Fixup RGB ordering */
 715         visual = pScreen->visuals + pScreen->numVisuals;
 716         while (--visual >= pScreen->visuals) {
 717             if ((visual->class | DynamicClass) == DirectColor) {
 718                 visual->offsetRed = pScrn->offset.red;
 719                 visual->offsetGreen = pScrn->offset.green;
 720                 visual->offsetBlue = pScrn->offset.blue;
 721                 visual->redMask = pScrn->mask.red;
 722                 visual->greenMask = pScrn->mask.green;
 723                 visual->blueMask = pScrn->mask.blue;
 724             }
 725         }
 726     }
 727
 728     fbPictureInit(pScreen, NULL, 0);
 729
 730     ms->blockHandler = pScreen->BlockHandler;
 731     pScreen->BlockHandler = drv_block_handler;
 732     ms->createScreenResources = pScreen->CreateScreenResources;
 733     pScreen->CreateScreenResources = drv_create_screen_resources;
 734
 735     xf86SetBlackWhitePixels(pScreen);
 736
 737     ms->accelerate_2d = xf86ReturnOptValBool(ms->Options, OPTION_2D_ACCEL, FALSE);
 738     ms->debug_fallback = xf86ReturnOptValBool(ms->Options, OPTION_DEBUG_FALLBACK, ms->accelerate_2d);
 739
 740     if (ms->screen) {
 741         ms->exa = xorg_exa_init(pScrn, ms->accelerate_2d);
 742
 743         xorg_xv_init(pScreen);
 744 #ifdef DRI2
 745         xorg_dri2_init(pScreen);
 746 #endif
 747     }
 748
 749     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 750     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "# Usefull debugging info follows #\n");
 751     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 752     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Using %s backend\n",
 753                ms->screen ? "Gallium3D" : "libkms");
 754     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "2D Acceleration is %s\n",
 755                ms->screen && ms->accelerate_2d ? "enabled" : "disabled");
 756     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Fallback debugging is %s\n",
 757                ms->debug_fallback ? "enabled" : "disabled");
 758 #ifdef DRI2
 759     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "3D Acceleration is %s\n",
 760                ms->screen ? "enabled" : "disabled");
 761 #else
 762     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "3D Acceleration is disabled\n");
 763 #endif
 764     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 765
 766     miInitializeBackingStore(pScreen);
 767     xf86SetBackingStore(pScreen);
 768     xf86SetSilkenMouse(pScreen);
 769     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
 770
 771     /* Need to extend HWcursor support to handle mask interleave */
 772     if (!ms->SWCursor)
 773         xf86_cursors_init(pScreen, 64, 64,
 774                           HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 |
 775                           HARDWARE_CURSOR_ARGB);
 776
 777     /* Must force it before EnterVT, so we are in control of VT and
 778      * later memory should be bound when allocating, e.g rotate_mem */
 779     pScrn->vtSema = TRUE;
 780
 781     pScreen->SaveScreen = xf86SaveScreen;
 782     ms->CloseScreen = pScreen->CloseScreen;
 783     pScreen->CloseScreen = drv_close_screen;
 784
 785     if (!xf86CrtcScreenInit(pScreen))
 786         return FALSE;
 787
 788     if (!miCreateDefColormap(pScreen))
 789         return FALSE;
 790
 791     xf86DPMSInit(pScreen, xf86DPMSSet, 0);
 792
 793     if (serverGeneration == 1)
 794         xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
 795
 796     if (cust && cust->winsys_screen_init)
 797         cust->winsys_screen_init(cust, ms->fd);
 798
 799     return drv_enter_vt(scrnIndex, 1);
 800 }
 801
 802 static void
 803 drv_adjust_frame(int scrnIndex, int x, int y, int flags)
 804 {
 805     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 806     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 807     xf86OutputPtr output = config->output[config->compat_output];
 808     xf86CrtcPtr crtc = output->crtc;
 809
 810     if (crtc && crtc->enabled) {
 811         crtc->funcs->set_mode_major(crtc, pScrn->currentMode,
 812                                     RR_Rotate_0, x, y);
 813         crtc->x = output->initial_x + x;
 814         crtc->y = output->initial_y + y;
 815     }
 816 }
 817
 818 static void
 819 drv_free_screen(int scrnIndex, int flags)
 820 {
 821     drv_free_rec(xf86Screens[scrnIndex]);
 822 }
 823
 824 static void
 825 drv_leave_vt(int scrnIndex, int flags)
 826 {
 827     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 828     modesettingPtr ms = modesettingPTR(pScrn);
 829     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 830     CustomizerPtr cust = ms->cust;
 831     int o;
 832
 833     if (cust && cust->winsys_leave_vt)
 834         cust->winsys_leave_vt(cust);
 835
 836     for (o = 0; o < config->num_crtc; o++) {
 837         xf86CrtcPtr crtc = config->crtc[o];
 838
 839         xorg_crtc_cursor_destroy(crtc);
 840
 841         if (crtc->rotatedPixmap || crtc->rotatedData) {
 842             crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
 843                                         crtc->rotatedData);
 844             crtc->rotatedPixmap = NULL;
 845             crtc->rotatedData = NULL;
 846         }
 847     }
 848
 849     drmModeRmFB(ms->fd, ms->fb_id);
 850     ms->fb_id = -1;
 851
 852     drv_restore_hw_state(pScrn);
 853
 854     if (drmDropMaster(ms->fd))
 855         xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 856                    "drmDropMaster failed: %s\n", strerror(errno));
 857
 858     pScrn->vtSema = FALSE;
 859 }
 860
 861 /*
 862  * This gets called when gaining control of the VT, and from ScreenInit().
 863  */
 864 static Bool
 865 drv_enter_vt(int scrnIndex, int flags)
 866 {
 867     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 868     modesettingPtr ms = modesettingPTR(pScrn);
 869     CustomizerPtr cust = ms->cust;
 870
 871     if (drmSetMaster(ms->fd)) {
 872         if (errno == EINVAL) {
 873             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 874                        "drmSetMaster failed: 2.6.29 or newer kernel required for "
 875                        "multi-server DRI\n");
 876         } else {
 877             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 878                        "drmSetMaster failed: %s\n", strerror(errno));
 879         }
 880     }
 881
 882     /*
 883      * Only save state once per server generation since that's what most
 884      * drivers do.  Could change this to save state at each VT enter.
 885      */
 886     if (ms->SaveGeneration != serverGeneration) {
 887         ms->SaveGeneration = serverGeneration;
 888         drv_save_hw_state(pScrn);
 889     }
 890
 891     if (!ms->create_front_buffer(pScrn))
 892         return FALSE;
 893
 894     if (!flags && !ms->bind_front_buffer(pScrn))
 895         return FALSE;
 896
 897     if (!xf86SetDesiredModes(pScrn))
 898         return FALSE;
 899
 900     if (cust && cust->winsys_enter_vt)
 901         cust->winsys_enter_vt(cust);
 902
 903     return TRUE;
 904 }
 905
 906 static Bool
 907 drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags)
 908 {
 909     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 910
 911     return xf86SetSingleMode(pScrn, mode, RR_Rotate_0);
 912 }
 913
 914 static Bool
 915 drv_close_screen(int scrnIndex, ScreenPtr pScreen)
 916 {
 917     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 918     modesettingPtr ms = modesettingPTR(pScrn);
 919     CustomizerPtr cust = ms->cust;
 920
 921     if (pScrn->vtSema) {
 922         drv_leave_vt(scrnIndex, 0);
 923     }
 924
 925     if (cust && cust->winsys_screen_close)
 926         cust->winsys_screen_close(cust);
 927
 928 #ifdef DRI2
 929     if (ms->screen)
 930         xorg_dri2_close(pScreen);
 931 #endif
 932
 933     pScreen->BlockHandler = ms->blockHandler;
 934     pScreen->CreateScreenResources = ms->createScreenResources;
 935
 936 #ifdef DRM_MODE_FEATURE_DIRTYFB
 937     if (ms->damage) {
 938         DamageUnregister(&pScreen->GetScreenPixmap(pScreen)->drawable, ms->damage);
 939         DamageDestroy(ms->damage);
 940         ms->damage = NULL;
 941     }
 942 #endif
 943
 944     drmModeRmFB(ms->fd, ms->fb_id);
 945     ms->destroy_front_buffer(pScrn);
 946
 947     if (ms->exa)
 948         xorg_exa_close(pScrn);
 949     ms->exa = NULL;
 950
 951     drv_close_resource_management(pScrn);
 952
 953     drv_close_drm(pScrn);
 954
 955     pScrn->vtSema = FALSE;
 956     pScreen->CloseScreen = ms->CloseScreen;
 957     return (*pScreen->CloseScreen) (scrnIndex, pScreen);
 958 }
 959
 960 static ModeStatus
 961 drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
 962 {
 963     return MODE_OK;
 964 }
 965
 966
 967 /*
 968  * Front buffer backing store functions.
 969  */
 970
 971 static Bool
 972 drv_destroy_front_buffer_ga3d(ScrnInfoPtr pScrn)
 973 {
 974     modesettingPtr ms = modesettingPTR(pScrn);
 975
 976     if (!ms->root_texture)
 977         return TRUE;
 978
 979     if (ms->fb_id != -1) {
 980         drmModeRmFB(ms->fd, ms->fb_id);
 981         ms->fb_id = -1;
 982     }
 983
 984     pipe_texture_reference(&ms->root_texture, NULL);
 985     return TRUE;
 986 }
 987
 988 static Bool
 989 drv_create_front_buffer_ga3d(ScrnInfoPtr pScrn)
 990 {
 991     modesettingPtr ms = modesettingPTR(pScrn);
 992     struct pipe_texture *tex;
 993     struct winsys_handle whandle;
 994     unsigned fb_id;
 995     int ret;
 996
 997     ms->noEvict = TRUE;
 998
 999     tex = xorg_exa_create_root_texture(pScrn, pScrn->virtualX, pScrn->virtualY,
1000                                        pScrn->depth, pScrn->bitsPerPixel);
1001
1002     if (!tex)
1003         return FALSE;
1004
1005     memset(&whandle, 0, sizeof(whandle));
1006     whandle.type = DRM_API_HANDLE_TYPE_KMS;
1007
1008     if (!ms->screen->texture_get_handle(ms->screen, tex, &whandle))
1009         goto err_destroy;
1010
1011     ret = drmModeAddFB(ms->fd,
1012                        pScrn->virtualX,
1013                        pScrn->virtualY,
1014                        pScrn->depth,
1015                        pScrn->bitsPerPixel,
1016                        whandle.stride,
1017                        whandle.handle,
1018                        &fb_id);
1019     if (ret) {
1020         debug_printf("%s: failed to create framebuffer (%i, %s)\n",
1021                      __func__, ret, strerror(-ret));
1022         goto err_destroy;
1023     }
1024
1025     if (!drv_destroy_front_buffer_ga3d(pScrn))
1026         FatalError("%s: failed to take down old framebuffer\n", __func__);
1027
1028     pScrn->frameX0 = 0;
1029     pScrn->frameY0 = 0;
1030     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
1031
1032     pipe_texture_reference(&ms->root_texture, tex);
1033     pipe_texture_reference(&tex, NULL);
1034     ms->fb_id = fb_id;
1035
1036     return TRUE;
1037
1038 err_destroy:
1039     pipe_texture_reference(&tex, NULL);
1040     return FALSE;
1041 }
1042
1043 static Bool
1044 drv_bind_front_buffer_ga3d(ScrnInfoPtr pScrn)
1045 {
1046     modesettingPtr ms = modesettingPTR(pScrn);
1047     ScreenPtr pScreen = pScrn->pScreen;
1048     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1049     struct pipe_texture *check;
1050
1051     xorg_exa_set_displayed_usage(rootPixmap);
1052     xorg_exa_set_shared_usage(rootPixmap);
1053     xorg_exa_set_texture(rootPixmap, ms->root_texture);
1054     if (!pScreen->ModifyPixmapHeader(rootPixmap, -1, -1, -1, -1, -1, NULL))
1055         FatalError("Couldn't adjust screen pixmap\n");
1056
1057     check = xorg_exa_get_texture(rootPixmap);
1058     if (ms->root_texture != check)
1059         FatalError("Created new root texture\n");
1060
1061     pipe_texture_reference(&check, NULL);
1062     return TRUE;
1063 }
1064
1065 #ifdef HAVE_LIBKMS
1066 static Bool
1067 drv_destroy_front_buffer_kms(ScrnInfoPtr pScrn)
1068 {
1069     modesettingPtr ms = modesettingPTR(pScrn);
1070     ScreenPtr pScreen = pScrn->pScreen;
1071     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1072
1073     /* XXX Do something with the rootPixmap.
1074      * This currently works fine but if we are getting crashes in
1075      * the fb functions after VT switches maybe look more into it.
1076      */
1077     (void)rootPixmap;
1078
1079     if (!ms->root_bo)
1080         return TRUE;
1081
1082     if (ms->fb_id != -1) {
1083         drmModeRmFB(ms->fd, ms->fb_id);
1084         ms->fb_id = -1;
1085     }
1086
1087     kms_bo_unmap(ms->root_bo);
1088     kms_bo_destroy(&ms->root_bo);
1089     return TRUE;
1090 }
1091
1092 static Bool
1093 drv_create_front_buffer_kms(ScrnInfoPtr pScrn)
1094 {
1095     modesettingPtr ms = modesettingPTR(pScrn);
1096     unsigned handle, stride;
1097     struct kms_bo *bo;
1098     unsigned attr[8];
1099     unsigned fb_id;
1100     int ret;
1101
1102     attr[0] = KMS_BO_TYPE;
1103 #ifdef KMS_BO_TYPE_SCANOUT_X8R8G8B8
1104     attr[1] = KMS_BO_TYPE_SCANOUT_X8R8G8B8;
1105 #else
1106     attr[1] = KMS_BO_TYPE_SCANOUT;
1107 #endif
1108     attr[2] = KMS_WIDTH;
1109     attr[3] = pScrn->virtualX;
1110     attr[4] = KMS_HEIGHT;
1111     attr[5] = pScrn->virtualY;
1112     attr[6] = 0;
1113
1114     if (kms_bo_create(ms->kms, attr, &bo))
1115         return FALSE;
1116
1117     if (kms_bo_get_prop(bo, KMS_PITCH, &stride))
1118         goto err_destroy;
1119
1120     if (kms_bo_get_prop(bo, KMS_HANDLE, &handle))
1121         goto err_destroy;
1122
1123     ret = drmModeAddFB(ms->fd,
1124                        pScrn->virtualX,
1125                        pScrn->virtualY,
1126                        pScrn->depth,
1127                        pScrn->bitsPerPixel,
1128                        stride,
1129                        handle,
1130                        &fb_id);
1131     if (ret) {
1132         debug_printf("%s: failed to create framebuffer (%i, %s)",
1133                      __func__, ret, strerror(-ret));
1134         goto err_destroy;
1135     }
1136
1137     if (!drv_destroy_front_buffer_kms(pScrn))
1138         FatalError("%s: could not takedown old bo", __func__);
1139
1140     pScrn->frameX0 = 0;
1141     pScrn->frameY0 = 0;
1142     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
1143     ms->root_bo = bo;
1144     ms->fb_id = fb_id;
1145
1146     return TRUE;
1147
1148 err_destroy:
1149     kms_bo_destroy(&bo);
1150     return FALSE;
1151 }
1152
1153 static Bool
1154 drv_bind_front_buffer_kms(ScrnInfoPtr pScrn)
1155 {
1156     modesettingPtr ms = modesettingPTR(pScrn);
1157     ScreenPtr pScreen = pScrn->pScreen;
1158     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1159     unsigned stride;
1160     void *ptr;
1161
1162     if (kms_bo_get_prop(ms->root_bo, KMS_PITCH, &stride))
1163         return FALSE;
1164
1165     if (kms_bo_map(ms->root_bo, &ptr))
1166         goto err_destroy;
1167
1168     pScreen->ModifyPixmapHeader(rootPixmap,
1169                                 pScrn->virtualX,
1170                                 pScrn->virtualY,
1171                                 pScreen->rootDepth,
1172                                 pScrn->bitsPerPixel,
1173                                 stride,
1174                                 ptr);
1175
1176     /* This a hack to work around EnableDisableFBAccess setting the pointer
1177      * the real fix would be to replace pScrn->EnableDisableFBAccess hook
1178      * and set the rootPixmap->devPrivate.ptr to something valid before that.
1179      *
1180      * But in its infinit visdome something uses either this some times before
1181      * that, so our hook doesn't get called before the crash happens.
1182      */
1183     pScrn->pixmapPrivate.ptr = ptr;
1184
1185     return TRUE;
1186
1187 err_destroy:
1188     kms_bo_destroy(&ms->root_bo);
1189     return FALSE;
1190 }
1191 #endif /* HAVE_LIBKMS */
1192
1193 static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn)
1194 {
1195     modesettingPtr ms = modesettingPTR(pScrn);
1196     if (ms->screen) {
1197         ms->destroy_front_buffer = drv_destroy_front_buffer_ga3d;
1198         ms->create_front_buffer = drv_create_front_buffer_ga3d;
1199         ms->bind_front_buffer = drv_bind_front_buffer_ga3d;
1200 #ifdef HAVE_LIBKMS
1201     } else if (ms->kms) {
1202         ms->destroy_front_buffer = drv_destroy_front_buffer_kms;
1203         ms->create_front_buffer = drv_create_front_buffer_kms;
1204         ms->bind_front_buffer = drv_bind_front_buffer_kms;
1205 #endif
1206     } else
1207         return FALSE;
1208
1209     return TRUE;
1210 }
1211
1212 CustomizerPtr xorg_customizer(ScrnInfoPtr pScrn)
1213 {
1214     return modesettingPTR(pScrn)->cust;
1215 }
1216
1217 Bool xorg_has_gallium(ScrnInfoPtr pScrn)
1218 {
1219     return modesettingPTR(pScrn)->screen != NULL;
1220 }
1221
1222 /* vim: set sw=4 ts=8 sts=4: */