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 "xorgVersion.h"
  49 #ifndef XSERVER_LIBPCIACCESS
  50 #error "libpciaccess needed"
  51 #endif
  52
  53 #include <pciaccess.h>
  54
  55 #include "state_tracker/drm_driver.h"
  56 #include "pipe/p_context.h"
  57 #include "xorg_tracker.h"
  58 #include "xorg_winsys.h"
  59
  60 #ifdef HAVE_LIBKMS
  61 #include "libkms.h"
  62 #endif
  63
  64 /*
  65  * Functions and symbols exported to Xorg via pointers.
  66  */
  67
  68 static Bool drv_pre_init(ScrnInfoPtr pScrn, int flags);
  69 static Bool drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc,
  70                             char **argv);
  71 static Bool drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags);
  72 static void drv_adjust_frame(int scrnIndex, int x, int y, int flags);
  73 static Bool drv_enter_vt(int scrnIndex, int flags);
  74 static void drv_leave_vt(int scrnIndex, int flags);
  75 static void drv_free_screen(int scrnIndex, int flags);
  76 static ModeStatus drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose,
  77                                  int flags);
  78
  79 typedef enum
  80 {
  81     OPTION_SW_CURSOR,
  82     OPTION_2D_ACCEL,
  83     OPTION_DEBUG_FALLBACK,
  84     OPTION_THROTTLE_SWAP,
  85     OPTION_THROTTLE_DIRTY,
  86     OPTION_3D_ACCEL
  87 } drv_option_enums;
  88
  89 static const OptionInfoRec drv_options[] = {
  90     {OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE},
  91     {OPTION_2D_ACCEL, "2DAccel", OPTV_BOOLEAN, {0}, FALSE},
  92     {OPTION_DEBUG_FALLBACK, "DebugFallback", OPTV_BOOLEAN, {0}, FALSE},
  93     {OPTION_THROTTLE_SWAP, "SwapThrottling", OPTV_BOOLEAN, {0}, FALSE},
  94     {OPTION_THROTTLE_DIRTY, "DirtyThrottling", OPTV_BOOLEAN, {0}, FALSE},
  95     {OPTION_3D_ACCEL, "3DAccel", OPTV_BOOLEAN, {0}, FALSE},
  96     {-1, NULL, OPTV_NONE, {0}, FALSE}
  97 };
  98
  99
 100 /*
 101  * Exported Xorg driver functions to winsys
 102  */
 103
 104 const OptionInfoRec *
 105 xorg_tracker_available_options(int chipid, int busid)
 106 {
 107     return drv_options;
 108 }
 109
 110 void
 111 xorg_tracker_set_functions(ScrnInfoPtr scrn)
 112 {
 113     scrn->PreInit = drv_pre_init;
 114     scrn->ScreenInit = drv_screen_init;
 115     scrn->SwitchMode = drv_switch_mode;
 116     scrn->AdjustFrame = drv_adjust_frame;
 117     scrn->EnterVT = drv_enter_vt;
 118     scrn->LeaveVT = drv_leave_vt;
 119     scrn->FreeScreen = drv_free_screen;
 120     scrn->ValidMode = drv_valid_mode;
 121 }
 122
 123 Bool
 124 xorg_tracker_have_modesetting(ScrnInfoPtr pScrn, struct pci_device *device)
 125 {
 126     char *BusID = malloc(64);
 127     sprintf(BusID, "pci:%04x:%02x:%02x.%d",
 128             device->domain, device->bus,
 129             device->dev, device->func);
 130
 131     if (drmCheckModesettingSupported(BusID)) {
 132         xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
 133                        "Drm modesetting not supported %s\n", BusID);
 134         free(BusID);
 135         return FALSE;
 136     }
 137
 138     xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
 139                    "Drm modesetting supported on %s\n", BusID);
 140
 141     free(BusID);
 142     return TRUE;
 143 }
 144
 145
 146 /*
 147  * Internal function definitions
 148  */
 149
 150 static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn);
 151 static Bool drv_close_screen(int scrnIndex, ScreenPtr pScreen);
 152
 153
 154 /*
 155  * Internal functions
 156  */
 157
 158 static Bool
 159 drv_get_rec(ScrnInfoPtr pScrn)
 160 {
 161     if (pScrn->driverPrivate)
 162         return TRUE;
 163
 164     pScrn->driverPrivate = xnfcalloc(1, sizeof(modesettingRec));
 165
 166     return TRUE;
 167 }
 168
 169 static void
 170 drv_free_rec(ScrnInfoPtr pScrn)
 171 {
 172     if (!pScrn)
 173         return;
 174
 175     if (!pScrn->driverPrivate)
 176         return;
 177
 178     free(pScrn->driverPrivate);
 179
 180     pScrn->driverPrivate = NULL;
 181 }
 182
 183 static void
 184 drv_probe_ddc(ScrnInfoPtr pScrn, int index)
 185 {
 186     ConfiguredMonitor = NULL;
 187 }
 188
 189 static Bool
 190 drv_crtc_resize(ScrnInfoPtr pScrn, int width, int height)
 191 {
 192     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 193     modesettingPtr ms = modesettingPTR(pScrn);
 194     CustomizerPtr cust = ms->cust;
 195     ScreenPtr pScreen = pScrn->pScreen;
 196     int old_width, old_height;
 197     PixmapPtr rootPixmap;
 198     int i;
 199
 200     if (width == pScrn->virtualX && height == pScrn->virtualY)
 201         return TRUE;
 202
 203     if (cust && cust->winsys_check_fb_size &&
 204         !cust->winsys_check_fb_size(cust, width*pScrn->bitsPerPixel / 8,
 205                                     height)) {
 206         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 207                    "Requested framebuffer size %dx%dx%d will not fit "
 208                    "in display memory.\n",
 209                    width, height, pScrn->bitsPerPixel);
 210         return FALSE;
 211     }
 212
 213     old_width = pScrn->virtualX;
 214     old_height = pScrn->virtualY;
 215     pScrn->virtualX = width;
 216     pScrn->virtualY = height;
 217
 218     /* ms->create_front_buffer will remove the old front buffer */
 219
 220     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 221     if (!pScreen->ModifyPixmapHeader(rootPixmap, width, height, -1, -1, -1, NULL))
 222         goto error_modify;
 223
 224     pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
 225
 226     if (!ms->create_front_buffer(pScrn) || !ms->bind_front_buffer(pScrn))
 227         goto error_create;
 228
 229     /*
 230      * create && bind will turn off all crtc(s) in the kernel so we need to
 231      * re-enable all the crtcs again. For real HW we might want to do this
 232      * before destroying the old framebuffer.
 233      */
 234     for (i = 0; i < xf86_config->num_crtc; i++) {
 235         xf86CrtcPtr crtc = xf86_config->crtc[i];
 236
 237         if (!crtc->enabled)
 238             continue;
 239
 240         crtc->funcs->set_mode_major(crtc, &crtc->mode, crtc->rotation, crtc->x, crtc->y);
 241     }
 242
 243     return TRUE;
 244
 245     /*
 246      * This is the error recovery path.
 247      */
 248 error_create:
 249     if (!pScreen->ModifyPixmapHeader(rootPixmap, old_width, old_height, -1, -1, -1, NULL))
 250         FatalError("failed to resize rootPixmap error path\n");
 251
 252     pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
 253
 254 error_modify:
 255     pScrn->virtualX = old_width;
 256     pScrn->virtualY = old_height;
 257
 258     if (ms->create_front_buffer(pScrn) && ms->bind_front_buffer(pScrn))
 259         return FALSE;
 260
 261     FatalError("failed to setup old framebuffer\n");
 262     return FALSE;
 263 }
 264
 265 static const xf86CrtcConfigFuncsRec crtc_config_funcs = {
 266     .resize = drv_crtc_resize
 267 };
 268
 269 static Bool
 270 drv_init_drm(ScrnInfoPtr pScrn)
 271 {
 272     modesettingPtr ms = modesettingPTR(pScrn);
 273
 274     /* deal with server regeneration */
 275     if (ms->fd < 0) {
 276         char *BusID;
 277
 278         BusID = malloc(64);
 279         sprintf(BusID, "PCI:%d:%d:%d",
 280                 ((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
 281                 ms->PciInfo->dev, ms->PciInfo->func
 282             );
 283
 284
 285         ms->fd = drmOpen(driver_descriptor.driver_name, BusID);
 286         ms->isMaster = TRUE;
 287         free(BusID);
 288
 289         if (ms->fd >= 0)
 290             return TRUE;
 291
 292         return FALSE;
 293     }
 294
 295     return TRUE;
 296 }
 297
 298 static Bool
 299 drv_init_resource_management(ScrnInfoPtr pScrn)
 300 {
 301     modesettingPtr ms = modesettingPTR(pScrn);
 302     /*
 303     ScreenPtr pScreen = pScrn->pScreen;
 304     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
 305     Bool fbAccessDisabled;
 306     CARD8 *fbstart;
 307      */
 308
 309     if (ms->screen || ms->kms)
 310         return TRUE;
 311
 312     if (!ms->no3D)
 313         ms->screen = driver_descriptor.create_screen(ms->fd);
 314
 315     if (ms->screen)
 316         return TRUE;
 317
 318 #ifdef HAVE_LIBKMS
 319     if (!kms_create(ms->fd, &ms->kms))
 320         return TRUE;
 321 #endif
 322
 323     return FALSE;
 324 }
 325
 326 static void
 327 drv_cleanup_fences(ScrnInfoPtr pScrn)
 328 {
 329     modesettingPtr ms = modesettingPTR(pScrn);
 330     int i;
 331
 332     assert(ms->screen);
 333
 334     for (i = 0; i < XORG_NR_FENCES; i++) {
 335         if (ms->fence[i]) {
 336             ms->screen->fence_finish(ms->screen, ms->fence[i], 0);
 337             ms->screen->fence_reference(ms->screen, &ms->fence[i], NULL);
 338         }
 339     }
 340 }
 341
 342 static Bool
 343 drv_pre_init(ScrnInfoPtr pScrn, int flags)
 344 {
 345     xf86CrtcConfigPtr xf86_config;
 346     modesettingPtr ms;
 347     rgb defaultWeight = { 0, 0, 0 };
 348     EntityInfoPtr pEnt;
 349     EntPtr msEnt = NULL;
 350     CustomizerPtr cust;
 351     Bool use3D;
 352
 353     if (pScrn->numEntities != 1)
 354         return FALSE;
 355
 356     pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
 357
 358     if (flags & PROBE_DETECT) {
 359         drv_probe_ddc(pScrn, pEnt->index);
 360         return TRUE;
 361     }
 362
 363     cust = (CustomizerPtr) pScrn->driverPrivate;
 364     pScrn->driverPrivate = NULL;
 365
 366     /* Allocate driverPrivate */
 367     if (!drv_get_rec(pScrn))
 368         return FALSE;
 369
 370     ms = modesettingPTR(pScrn);
 371     ms->pEnt = pEnt;
 372     ms->cust = cust;
 373     ms->fb_id = -1;
 374
 375     pScrn->displayWidth = 640;         /* default it */
 376
 377     if (ms->pEnt->location.type != BUS_PCI)
 378         return FALSE;
 379
 380     ms->PciInfo = xf86GetPciInfoForEntity(ms->pEnt->index);
 381
 382     /* Allocate an entity private if necessary */
 383     if (xf86IsEntityShared(pScrn->entityList[0])) {
 384         FatalError("Entity");
 385 #if 0
 386         msEnt = xf86GetEntityPrivate(pScrn->entityList[0],
 387                                      modesettingEntityIndex)->ptr;
 388         ms->entityPrivate = msEnt;
 389 #else
 390         (void)msEnt;
 391 #endif
 392     } else
 393         ms->entityPrivate = NULL;
 394
 395     if (xf86IsEntityShared(pScrn->entityList[0])) {
 396         if (xf86IsPrimInitDone(pScrn->entityList[0])) {
 397             /* do something */
 398         } else {
 399             xf86SetPrimInitDone(pScrn->entityList[0]);
 400         }
 401     }
 402
 403     ms->fd = -1;
 404     if (!drv_init_drm(pScrn))
 405         return FALSE;
 406
 407     pScrn->monitor = pScrn->confScreen->monitor;
 408     pScrn->progClock = TRUE;
 409     pScrn->rgbBits = 8;
 410
 411     if (!xf86SetDepthBpp
 412         (pScrn, 0, 0, 0,
 413          PreferConvert24to32 | SupportConvert24to32 | Support32bppFb))
 414         return FALSE;
 415
 416     switch (pScrn->depth) {
 417     case 15:
 418     case 16:
 419     case 24:
 420         break;
 421     default:
 422         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 423                    "Given depth (%d) is not supported by the driver\n",
 424                    pScrn->depth);
 425         return FALSE;
 426     }
 427     xf86PrintDepthBpp(pScrn);
 428
 429     if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
 430         return FALSE;
 431     if (!xf86SetDefaultVisual(pScrn, -1))
 432         return FALSE;
 433
 434     /* Process the options */
 435     xf86CollectOptions(pScrn, NULL);
 436     if (!(ms->Options = malloc(sizeof(drv_options))))
 437         return FALSE;
 438     memcpy(ms->Options, drv_options, sizeof(drv_options));
 439     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, ms->Options);
 440
 441     use3D = cust ? !cust->no_3d : TRUE;
 442     ms->from_3D = xf86GetOptValBool(ms->Options, OPTION_3D_ACCEL,
 443                                     &use3D) ?
 444         X_CONFIG : X_PROBED;
 445
 446     ms->no3D = !use3D;
 447
 448     if (!drv_init_resource_management(pScrn)) {
 449         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Could not init "
 450                                                "Gallium3D or libKMS.\n");
 451         return FALSE;
 452     }
 453
 454     /* Allocate an xf86CrtcConfig */
 455     xf86CrtcConfigInit(pScrn, &crtc_config_funcs);
 456     xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
 457
 458     /* get max width and height */
 459     {
 460         drmModeResPtr res;
 461         int max_width, max_height;
 462
 463         res = drmModeGetResources(ms->fd);
 464         max_width = res->max_width;
 465         max_height = res->max_height;
 466
 467         if (ms->screen) {
 468             int max;
 469
 470             max = ms->screen->get_param(ms->screen,
 471                                         PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
 472             max = 1 << (max - 1);
 473             max_width = max < max_width ? max : max_width;
 474             max_height = max < max_height ? max : max_height;
 475         }
 476
 477         xf86CrtcSetSizeRange(pScrn, res->min_width,
 478                              res->min_height, max_width, max_height);
 479         xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
 480                    "Min width %d, Max Width %d.\n",
 481                    res->min_width, max_width);
 482         xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
 483                    "Min height %d, Max Height %d.\n",
 484                    res->min_height, max_height);
 485         drmModeFreeResources(res);
 486     }
 487
 488
 489     if (xf86ReturnOptValBool(ms->Options, OPTION_SW_CURSOR, FALSE)) {
 490         ms->SWCursor = TRUE;
 491     }
 492
 493     xorg_crtc_init(pScrn);
 494     xorg_output_init(pScrn);
 495
 496     if (cust && cust->winsys_pre_init && !cust->winsys_pre_init(cust, ms->fd))
 497         return FALSE;
 498
 499     if (!xf86InitialConfiguration(pScrn, TRUE)) {
 500         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes.\n");
 501         return FALSE;
 502     }
 503
 504     /*
 505      * If the driver can do gamma correction, it should call xf86SetGamma() here.
 506      */
 507     {
 508         Gamma zeros = { 0.0, 0.0, 0.0 };
 509
 510         if (!xf86SetGamma(pScrn, zeros)) {
 511             return FALSE;
 512         }
 513     }
 514
 515     if (pScrn->modes == NULL) {
 516         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No modes.\n");
 517         return FALSE;
 518     }
 519
 520     pScrn->currentMode = pScrn->modes;
 521
 522     /* Set display resolution */
 523     xf86SetDpi(pScrn, 0, 0);
 524
 525     /* Load the required sub modules */
 526     if (!xf86LoadSubModule(pScrn, "fb"))
 527         return FALSE;
 528
 529     /* XXX: these aren't needed when we are using libkms */
 530     if (!xf86LoadSubModule(pScrn, "exa"))
 531         return FALSE;
 532
 533 #ifdef DRI2
 534     if (!xf86LoadSubModule(pScrn, "dri2"))
 535         return FALSE;
 536 #endif
 537
 538     return TRUE;
 539 }
 540
 541 static void drv_block_handler(int i, pointer blockData, pointer pTimeout,
 542                               pointer pReadmask)
 543 {
 544     ScreenPtr pScreen = screenInfo.screens[i];
 545     modesettingPtr ms = modesettingPTR(xf86Screens[pScreen->myNum]);
 546
 547     pScreen->BlockHandler = ms->blockHandler;
 548     pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);
 549     pScreen->BlockHandler = drv_block_handler;
 550
 551     if (ms->ctx) {
 552        int j;
 553
 554        ms->ctx->flush(ms->ctx, PIPE_FLUSH_RENDER_CACHE,
 555                       ms->dirtyThrottling ?
 556                       &ms->fence[XORG_NR_FENCES-1] :
 557                       NULL);
 558
 559        if (ms->dirtyThrottling) {
 560            if (ms->fence[0])
 561                ms->ctx->screen->fence_finish(ms->ctx->screen,
 562                                              ms->fence[0], 0);
 563
 564            /* The amount of rendering generated by a block handler can be
 565             * quite small.  Let us get a fair way ahead of hardware before
 566             * throttling.
 567             */
 568            for (j = 0; j < XORG_NR_FENCES - 1; j++)
 569                ms->screen->fence_reference(ms->screen,
 570                                            &ms->fence[j],
 571                                            ms->fence[j+1]);
 572
 573            ms->screen->fence_reference(ms->screen,
 574                                        &ms->fence[XORG_NR_FENCES-1],
 575                                        NULL);
 576        }
 577     }
 578
 579
 580 #ifdef DRM_MODE_FEATURE_DIRTYFB
 581     {
 582         RegionPtr dirty = DamageRegion(ms->damage);
 583         unsigned num_cliprects = REGION_NUM_RECTS(dirty);
 584
 585         if (num_cliprects) {
 586             drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
 587             BoxPtr rect = REGION_RECTS(dirty);
 588             int i, ret;
 589
 590             /* XXX no need for copy? */
 591             for (i = 0; i < num_cliprects; i++, rect++) {
 592                 clip[i].x1 = rect->x1;
 593                 clip[i].y1 = rect->y1;
 594                 clip[i].x2 = rect->x2;
 595                 clip[i].y2 = rect->y2;
 596             }
 597
 598             /* TODO query connector property to see if this is needed */
 599             ret = drmModeDirtyFB(ms->fd, ms->fb_id, clip, num_cliprects);
 600             if (ret) {
 601                 debug_printf("%s: failed to send dirty (%i, %s)\n",
 602                              __func__, ret, strerror(-ret));
 603             }
 604
 605             DamageEmpty(ms->damage);
 606         }
 607     }
 608 #endif
 609 }
 610
 611 static Bool
 612 drv_create_screen_resources(ScreenPtr pScreen)
 613 {
 614     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 615     modesettingPtr ms = modesettingPTR(pScrn);
 616     PixmapPtr rootPixmap;
 617     Bool ret;
 618
 619     ms->noEvict = TRUE;
 620
 621     pScreen->CreateScreenResources = ms->createScreenResources;
 622     ret = pScreen->CreateScreenResources(pScreen);
 623     pScreen->CreateScreenResources = drv_create_screen_resources;
 624
 625     ms->bind_front_buffer(pScrn);
 626
 627     ms->noEvict = FALSE;
 628
 629     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
 630
 631 #ifdef DRM_MODE_FEATURE_DIRTYFB
 632     rootPixmap = pScreen->GetScreenPixmap(pScreen);
 633     ms->damage = DamageCreate(NULL, NULL, DamageReportNone, TRUE,
 634                               pScreen, rootPixmap);
 635
 636     if (ms->damage) {
 637        DamageRegister(&rootPixmap->drawable, ms->damage);
 638
 639        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Damage tracking initialized\n");
 640     } else {
 641        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 642                   "Failed to create screen damage record\n");
 643        return FALSE;
 644     }
 645 #else
 646     (void)rootPixmap;
 647 #endif
 648
 649     return ret;
 650 }
 651
 652 static Bool
 653 drv_set_master(ScrnInfoPtr pScrn)
 654 {
 655     modesettingPtr ms = modesettingPTR(pScrn);
 656
 657     if (!ms->isMaster && drmSetMaster(ms->fd) != 0) {
 658         if (errno == EINVAL) {
 659             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 660                        "drmSetMaster failed: 2.6.29 or newer kernel required for "
 661                        "multi-server DRI\n");
 662         } else {
 663             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 664                        "drmSetMaster failed: %s\n", strerror(errno));
 665         }
 666         return FALSE;
 667     }
 668
 669     ms->isMaster = TRUE;
 670     return TRUE;
 671 }
 672
 673
 674 static Bool
 675 drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 676 {
 677     ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 678     modesettingPtr ms = modesettingPTR(pScrn);
 679     VisualPtr visual;
 680     CustomizerPtr cust = ms->cust;
 681     MessageType from_st;
 682     MessageType from_dt;
 683
 684     if (!drv_set_master(pScrn))
 685         return FALSE;
 686
 687     if (!drv_init_front_buffer_functions(pScrn)) {
 688         FatalError("Could not init front buffer manager");
 689         return FALSE;
 690     }
 691
 692     pScrn->pScreen = pScreen;
 693
 694     /* HW dependent - FIXME */
 695     pScrn->displayWidth = pScrn->virtualX;
 696
 697     miClearVisualTypes();
 698
 699     if (!miSetVisualTypes(pScrn->depth,
 700                           miGetDefaultVisualMask(pScrn->depth),
 701                           pScrn->rgbBits, pScrn->defaultVisual))
 702         return FALSE;
 703
 704     if (!miSetPixmapDepths())
 705         return FALSE;
 706
 707     pScrn->memPhysBase = 0;
 708     pScrn->fbOffset = 0;
 709
 710     if (!fbScreenInit(pScreen, NULL,
 711                       pScrn->virtualX, pScrn->virtualY,
 712                       pScrn->xDpi, pScrn->yDpi,
 713                       pScrn->displayWidth, pScrn->bitsPerPixel))
 714         return FALSE;
 715
 716     if (pScrn->bitsPerPixel > 8) {
 717         /* Fixup RGB ordering */
 718         visual = pScreen->visuals + pScreen->numVisuals;
 719         while (--visual >= pScreen->visuals) {
 720             if ((visual->class | DynamicClass) == DirectColor) {
 721                 visual->offsetRed = pScrn->offset.red;
 722                 visual->offsetGreen = pScrn->offset.green;
 723                 visual->offsetBlue = pScrn->offset.blue;
 724                 visual->redMask = pScrn->mask.red;
 725                 visual->greenMask = pScrn->mask.green;
 726                 visual->blueMask = pScrn->mask.blue;
 727             }
 728         }
 729     }
 730
 731     fbPictureInit(pScreen, NULL, 0);
 732
 733     ms->blockHandler = pScreen->BlockHandler;
 734     pScreen->BlockHandler = drv_block_handler;
 735     ms->createScreenResources = pScreen->CreateScreenResources;
 736     pScreen->CreateScreenResources = drv_create_screen_resources;
 737
 738     xf86SetBlackWhitePixels(pScreen);
 739
 740     ms->accelerate_2d = xf86ReturnOptValBool(ms->Options, OPTION_2D_ACCEL, FALSE);
 741     ms->debug_fallback = xf86ReturnOptValBool(ms->Options, OPTION_DEBUG_FALLBACK, ms->accelerate_2d);
 742
 743     if (cust && cust->winsys_screen_init)
 744         cust->winsys_screen_init(cust);
 745
 746     ms->swapThrottling = cust ?  cust->swap_throttling : TRUE;
 747     from_st = xf86GetOptValBool(ms->Options, OPTION_THROTTLE_SWAP,
 748                                 &ms->swapThrottling) ?
 749         X_CONFIG : X_DEFAULT;
 750
 751     ms->dirtyThrottling = cust ?  cust->dirty_throttling : TRUE;
 752     from_dt = xf86GetOptValBool(ms->Options, OPTION_THROTTLE_DIRTY,
 753                                 &ms->dirtyThrottling) ?
 754         X_CONFIG : X_DEFAULT;
 755
 756     if (ms->screen) {
 757         ms->exa = xorg_exa_init(pScrn, ms->accelerate_2d);
 758
 759         xorg_xv_init(pScreen);
 760 #ifdef DRI2
 761         xorg_dri2_init(pScreen);
 762 #endif
 763     }
 764
 765     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 766     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "# Usefull debugging info follows #\n");
 767     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 768     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Using %s backend\n",
 769                ms->screen ? "Gallium3D" : "libkms");
 770     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "2D Acceleration is %s\n",
 771                ms->screen && ms->accelerate_2d ? "enabled" : "disabled");
 772     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Fallback debugging is %s\n",
 773                ms->debug_fallback ? "enabled" : "disabled");
 774 #ifdef DRI2
 775     xf86DrvMsg(pScrn->scrnIndex, ms->from_3D, "3D Acceleration is %s\n",
 776                ms->screen ? "enabled" : "disabled");
 777 #else
 778     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "3D Acceleration is disabled\n");
 779 #endif
 780     xf86DrvMsg(pScrn->scrnIndex, from_st, "Swap Throttling is %s.\n",
 781                ms->swapThrottling ? "enabled" : "disabled");
 782     xf86DrvMsg(pScrn->scrnIndex, from_dt, "Dirty Throttling is %s.\n",
 783                ms->dirtyThrottling ? "enabled" : "disabled");
 784
 785     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
 786
 787     miInitializeBackingStore(pScreen);
 788     xf86SetBackingStore(pScreen);
 789     xf86SetSilkenMouse(pScreen);
 790     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
 791
 792     /* Need to extend HWcursor support to handle mask interleave */
 793     if (!ms->SWCursor)
 794         xf86_cursors_init(pScreen, 64, 64,
 795                           HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 |
 796                           HARDWARE_CURSOR_ARGB |
 797                           ((cust && cust->unhidden_hw_cursor_update) ?
 798                            HARDWARE_CURSOR_UPDATE_UNHIDDEN : 0));
 799
 800     /* Must force it before EnterVT, so we are in control of VT and
 801      * later memory should be bound when allocating, e.g rotate_mem */
 802     pScrn->vtSema = TRUE;
 803
 804     pScreen->SaveScreen = xf86SaveScreen;
 805     ms->CloseScreen = pScreen->CloseScreen;
 806     pScreen->CloseScreen = drv_close_screen;
 807
 808     if (!xf86CrtcScreenInit(pScreen))
 809         return FALSE;
 810
 811     if (!miCreateDefColormap(pScreen))
 812         return FALSE;
 813
 814     xf86DPMSInit(pScreen, xf86DPMSSet, 0);
 815
 816     if (serverGeneration == 1)
 817         xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
 818
 819     return drv_enter_vt(scrnIndex, 1);
 820 }
 821
 822 static void
 823 drv_adjust_frame(int scrnIndex, int x, int y, int flags)
 824 {
 825     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 826     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 827     xf86OutputPtr output = config->output[config->compat_output];
 828     xf86CrtcPtr crtc = output->crtc;
 829
 830     if (crtc && crtc->enabled) {
 831         crtc->funcs->set_mode_major(crtc, pScrn->currentMode,
 832                                     RR_Rotate_0, x, y);
 833         crtc->x = output->initial_x + x;
 834         crtc->y = output->initial_y + y;
 835     }
 836 }
 837
 838 static void
 839 drv_free_screen(int scrnIndex, int flags)
 840 {
 841     drv_free_rec(xf86Screens[scrnIndex]);
 842 }
 843
 844 static void
 845 drv_leave_vt(int scrnIndex, int flags)
 846 {
 847     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 848     modesettingPtr ms = modesettingPTR(pScrn);
 849     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
 850     CustomizerPtr cust = ms->cust;
 851     int o;
 852
 853     if (cust && cust->winsys_leave_vt)
 854         cust->winsys_leave_vt(cust);
 855
 856     for (o = 0; o < config->num_crtc; o++) {
 857         xf86CrtcPtr crtc = config->crtc[o];
 858
 859         xorg_crtc_cursor_destroy(crtc);
 860
 861         if (crtc->rotatedPixmap || crtc->rotatedData) {
 862             crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
 863                                         crtc->rotatedData);
 864             crtc->rotatedPixmap = NULL;
 865             crtc->rotatedData = NULL;
 866         }
 867     }
 868
 869     if (ms->fb_id != -1) {
 870         drmModeRmFB(ms->fd, ms->fb_id);
 871         ms->fb_id = -1;
 872     }
 873
 874     /* idle hardware */
 875     if (!ms->kms)
 876         drv_cleanup_fences(pScrn);
 877
 878     if (drmDropMaster(ms->fd))
 879         xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 880                    "drmDropMaster failed: %s\n", strerror(errno));
 881
 882     ms->isMaster = FALSE;
 883     pScrn->vtSema = FALSE;
 884 }
 885
 886 /*
 887  * This gets called when gaining control of the VT, and from ScreenInit().
 888  */
 889 static Bool
 890 drv_enter_vt(int scrnIndex, int flags)
 891 {
 892     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 893     modesettingPtr ms = modesettingPTR(pScrn);
 894     CustomizerPtr cust = ms->cust;
 895
 896     if (!drv_set_master(pScrn))
 897         return FALSE;
 898
 899     if (!ms->create_front_buffer(pScrn))
 900         return FALSE;
 901
 902     if (!flags && !ms->bind_front_buffer(pScrn))
 903         return FALSE;
 904
 905     if (!xf86SetDesiredModes(pScrn))
 906         return FALSE;
 907
 908     if (cust && cust->winsys_enter_vt)
 909         cust->winsys_enter_vt(cust);
 910
 911     return TRUE;
 912 }
 913
 914 static Bool
 915 drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags)
 916 {
 917     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 918
 919     return xf86SetSingleMode(pScrn, mode, RR_Rotate_0);
 920 }
 921
 922 static Bool
 923 drv_close_screen(int scrnIndex, ScreenPtr pScreen)
 924 {
 925     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
 926     modesettingPtr ms = modesettingPTR(pScrn);
 927     CustomizerPtr cust = ms->cust;
 928
 929     if (ms->cursor) {
 930        FreeCursor(ms->cursor, None);
 931        ms->cursor = NULL;
 932     }
 933
 934     if (cust && cust->winsys_screen_close)
 935         cust->winsys_screen_close(cust);
 936
 937 #ifdef DRI2
 938     if (ms->screen)
 939         xorg_dri2_close(pScreen);
 940 #endif
 941
 942     pScreen->BlockHandler = ms->blockHandler;
 943     pScreen->CreateScreenResources = ms->createScreenResources;
 944
 945 #ifdef DRM_MODE_FEATURE_DIRTYFB
 946     if (ms->damage) {
 947         DamageUnregister(&pScreen->GetScreenPixmap(pScreen)->drawable, ms->damage);
 948         DamageDestroy(ms->damage);
 949         ms->damage = NULL;
 950     }
 951 #endif
 952
 953     ms->destroy_front_buffer(pScrn);
 954
 955     if (ms->exa)
 956         xorg_exa_close(pScrn);
 957     ms->exa = NULL;
 958
 959     /* calls drop master make sure we don't talk to 3D HW after that */
 960     if (pScrn->vtSema) {
 961         drv_leave_vt(scrnIndex, 0);
 962     }
 963
 964     pScrn->vtSema = FALSE;
 965     pScreen->CloseScreen = ms->CloseScreen;
 966
 967     return (*pScreen->CloseScreen) (scrnIndex, pScreen);
 968 }
 969
 970 static ModeStatus
 971 drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
 972 {
 973     return MODE_OK;
 974 }
 975
 976
 977 /*
 978  * Front buffer backing store functions.
 979  */
 980
 981 static Bool
 982 drv_destroy_front_buffer_ga3d(ScrnInfoPtr pScrn)
 983 {
 984     modesettingPtr ms = modesettingPTR(pScrn);
 985
 986     if (!ms->root_texture)
 987         return TRUE;
 988
 989     if (ms->fb_id != -1) {
 990         drmModeRmFB(ms->fd, ms->fb_id);
 991         ms->fb_id = -1;
 992     }
 993
 994     pipe_resource_reference(&ms->root_texture, NULL);
 995     return TRUE;
 996 }
 997
 998 static Bool
 999 drv_create_front_buffer_ga3d(ScrnInfoPtr pScrn)
1000 {
1001     modesettingPtr ms = modesettingPTR(pScrn);
1002     struct pipe_resource *tex;
1003     struct winsys_handle whandle;
1004     unsigned fb_id;
1005     int ret;
1006
1007     ms->noEvict = TRUE;
1008
1009     tex = xorg_exa_create_root_texture(pScrn, pScrn->virtualX, pScrn->virtualY,
1010                                        pScrn->depth, pScrn->bitsPerPixel);
1011
1012     if (!tex)
1013         return FALSE;
1014
1015     memset(&whandle, 0, sizeof(whandle));
1016     whandle.type = DRM_API_HANDLE_TYPE_KMS;
1017
1018     if (!ms->screen->resource_get_handle(ms->screen, tex, &whandle))
1019         goto err_destroy;
1020
1021     ret = drmModeAddFB(ms->fd,
1022                        pScrn->virtualX,
1023                        pScrn->virtualY,
1024                        pScrn->depth,
1025                        pScrn->bitsPerPixel,
1026                        whandle.stride,
1027                        whandle.handle,
1028                        &fb_id);
1029     if (ret) {
1030         debug_printf("%s: failed to create framebuffer (%i, %s)\n",
1031                      __func__, ret, strerror(-ret));
1032         goto err_destroy;
1033     }
1034
1035     if (!drv_destroy_front_buffer_ga3d(pScrn))
1036         FatalError("%s: failed to take down old framebuffer\n", __func__);
1037
1038     pScrn->frameX0 = 0;
1039     pScrn->frameY0 = 0;
1040     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
1041
1042     pipe_resource_reference(&ms->root_texture, tex);
1043     pipe_resource_reference(&tex, NULL);
1044     ms->fb_id = fb_id;
1045
1046     return TRUE;
1047
1048 err_destroy:
1049     pipe_resource_reference(&tex, NULL);
1050     return FALSE;
1051 }
1052
1053 static Bool
1054 drv_bind_front_buffer_ga3d(ScrnInfoPtr pScrn)
1055 {
1056     modesettingPtr ms = modesettingPTR(pScrn);
1057     ScreenPtr pScreen = pScrn->pScreen;
1058     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1059     struct pipe_resource *check;
1060
1061     xorg_exa_set_displayed_usage(rootPixmap);
1062     xorg_exa_set_shared_usage(rootPixmap);
1063     xorg_exa_set_texture(rootPixmap, ms->root_texture);
1064     if (!pScreen->ModifyPixmapHeader(rootPixmap, -1, -1, -1, -1, -1, NULL))
1065         FatalError("Couldn't adjust screen pixmap\n");
1066
1067     check = xorg_exa_get_texture(rootPixmap);
1068     if (ms->root_texture != check)
1069         FatalError("Created new root texture\n");
1070
1071     pipe_resource_reference(&check, NULL);
1072     return TRUE;
1073 }
1074
1075 #ifdef HAVE_LIBKMS
1076 static Bool
1077 drv_destroy_front_buffer_kms(ScrnInfoPtr pScrn)
1078 {
1079     modesettingPtr ms = modesettingPTR(pScrn);
1080     ScreenPtr pScreen = pScrn->pScreen;
1081     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1082
1083     /* XXX Do something with the rootPixmap.
1084      * This currently works fine but if we are getting crashes in
1085      * the fb functions after VT switches maybe look more into it.
1086      */
1087     (void)rootPixmap;
1088
1089     if (!ms->root_bo)
1090         return TRUE;
1091
1092     if (ms->fb_id != -1) {
1093         drmModeRmFB(ms->fd, ms->fb_id);
1094         ms->fb_id = -1;
1095     }
1096
1097     kms_bo_unmap(ms->root_bo);
1098     kms_bo_destroy(&ms->root_bo);
1099     return TRUE;
1100 }
1101
1102 static Bool
1103 drv_create_front_buffer_kms(ScrnInfoPtr pScrn)
1104 {
1105     modesettingPtr ms = modesettingPTR(pScrn);
1106     unsigned handle, stride;
1107     struct kms_bo *bo;
1108     unsigned attr[8];
1109     unsigned fb_id;
1110     int ret;
1111
1112     attr[0] = KMS_BO_TYPE;
1113 #ifdef KMS_BO_TYPE_SCANOUT_X8R8G8B8
1114     attr[1] = KMS_BO_TYPE_SCANOUT_X8R8G8B8;
1115 #else
1116     attr[1] = KMS_BO_TYPE_SCANOUT;
1117 #endif
1118     attr[2] = KMS_WIDTH;
1119     attr[3] = pScrn->virtualX;
1120     attr[4] = KMS_HEIGHT;
1121     attr[5] = pScrn->virtualY;
1122     attr[6] = 0;
1123
1124     if (kms_bo_create(ms->kms, attr, &bo))
1125         return FALSE;
1126
1127     if (kms_bo_get_prop(bo, KMS_PITCH, &stride))
1128         goto err_destroy;
1129
1130     if (kms_bo_get_prop(bo, KMS_HANDLE, &handle))
1131         goto err_destroy;
1132
1133     ret = drmModeAddFB(ms->fd,
1134                        pScrn->virtualX,
1135                        pScrn->virtualY,
1136                        pScrn->depth,
1137                        pScrn->bitsPerPixel,
1138                        stride,
1139                        handle,
1140                        &fb_id);
1141     if (ret) {
1142         debug_printf("%s: failed to create framebuffer (%i, %s)",
1143                      __func__, ret, strerror(-ret));
1144         goto err_destroy;
1145     }
1146
1147     if (!drv_destroy_front_buffer_kms(pScrn))
1148         FatalError("%s: could not takedown old bo", __func__);
1149
1150     pScrn->frameX0 = 0;
1151     pScrn->frameY0 = 0;
1152     drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
1153     ms->root_bo = bo;
1154     ms->fb_id = fb_id;
1155
1156     return TRUE;
1157
1158 err_destroy:
1159     kms_bo_destroy(&bo);
1160     return FALSE;
1161 }
1162
1163 static Bool
1164 drv_bind_front_buffer_kms(ScrnInfoPtr pScrn)
1165 {
1166     modesettingPtr ms = modesettingPTR(pScrn);
1167     ScreenPtr pScreen = pScrn->pScreen;
1168     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1169     unsigned stride;
1170     void *ptr;
1171
1172     if (kms_bo_get_prop(ms->root_bo, KMS_PITCH, &stride))
1173         return FALSE;
1174
1175     if (kms_bo_map(ms->root_bo, &ptr))
1176         goto err_destroy;
1177
1178     pScreen->ModifyPixmapHeader(rootPixmap,
1179                                 pScrn->virtualX,
1180                                 pScrn->virtualY,
1181                                 pScreen->rootDepth,
1182                                 pScrn->bitsPerPixel,
1183                                 stride,
1184                                 ptr);
1185
1186 #if (XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(1, 9, 99, 1, 0))
1187
1188     /* This a hack to work around EnableDisableFBAccess setting the pointer
1189      * the real fix would be to replace pScrn->EnableDisableFBAccess hook
1190      * and set the rootPixmap->devPrivate.ptr to something valid before that.
1191      *
1192      * But in its infinit visdome something uses either this some times before
1193      * that, so our hook doesn't get called before the crash happens.
1194      */
1195     pScrn->pixmapPrivate.ptr = ptr;
1196
1197 #endif
1198
1199     return TRUE;
1200
1201 err_destroy:
1202     kms_bo_destroy(&ms->root_bo);
1203     return FALSE;
1204 }
1205 #endif /* HAVE_LIBKMS */
1206
1207 static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn)
1208 {
1209     modesettingPtr ms = modesettingPTR(pScrn);
1210     if (ms->screen) {
1211         ms->destroy_front_buffer = drv_destroy_front_buffer_ga3d;
1212         ms->create_front_buffer = drv_create_front_buffer_ga3d;
1213         ms->bind_front_buffer = drv_bind_front_buffer_ga3d;
1214 #ifdef HAVE_LIBKMS
1215     } else if (ms->kms) {
1216         ms->destroy_front_buffer = drv_destroy_front_buffer_kms;
1217         ms->create_front_buffer = drv_create_front_buffer_kms;
1218         ms->bind_front_buffer = drv_bind_front_buffer_kms;
1219 #endif
1220     } else
1221         return FALSE;
1222
1223     return TRUE;
1224 }
1225
1226 CustomizerPtr xorg_customizer(ScrnInfoPtr pScrn)
1227 {
1228     return modesettingPTR(pScrn)->cust;
1229 }
1230
1231 Bool xorg_has_gallium(ScrnInfoPtr pScrn)
1232 {
1233     return modesettingPTR(pScrn)->screen != NULL;
1234 }
1235
1236 /* vim: set sw=4 ts=8 sts=4: */