info->pLibDRMVersion = drmGetLibVersion(info->drmFD);    if (info->pLibDRMVersion == NULL) {	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,		   "[dri] RADEONDRIGetVersion failed because libDRM is really "		   "way to old to even get a version number out of it.\n"		   "[dri] Disabling DRI.\n");	return FALSE;    }    if (info->pLibDRMVersion->version_major != 1 ||	info->pLibDRMVersion->version_minor < 2) {	    /* incompatible drm library version */	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,		   "[dri] RADEONDRIGetVersion failed because of a "		   "version mismatch.\n"		   "[dri] libdrm.a module version is %d.%d.%d but "		   "version 1.2.x is needed.\n"		   "[dri] Disabling DRI.\n",		   info->pLibDRMVersion->version_major,		   info->pLibDRMVersion->version_minor,		   info->pLibDRMVersion->version_patchlevel);	drmFreeVersion(info->pLibDRMVersion);	info->pLibDRMVersion = NULL;	return FALSE;    }    /* Create a bus Id */    if (xf86LoaderCheckSymbol("DRICreatePCIBusID")) {	busId = DRICreatePCIBusID(info->PciInfo);    } else {	busId = xalloc(64);	sprintf(busId,		"PCI:%d:%d:%d",		info->PciInfo->bus,		info->PciInfo->device,		info->PciInfo->func);    }    /* Low level DRM open */    fd = drmOpen(RADEON_DRIVER_NAME, busId);    xfree(busId);    if (fd < 0) {	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,		   "[dri] RADEONDRIGetVersion failed to open the DRM\n"		   "[dri] Disabling DRI.\n");	return FALSE;    }    /* Get DRM version & close DRM */    info->pKernelDRMVersion = drmGetVersion(fd);    drmClose(fd);    if (info->pKernelDRMVersion == NULL) {	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,		   "[dri] RADEONDRIGetVersion failed to get the DRM version\n"		   "[dri] Disabling DRI.\n");	return FALSE;    }    /* Now check if we qualify */    if (info->ChipFamily >= CHIP_FAMILY_R300) {        req_minor = 17;        req_patch = 0;    } else if (info->IsIGP) {        req_minor = 10;	req_patch = 0;    } else { /* Many problems have been reported with 1.7 in the 2.4 kernel */	req_minor = 8;	req_patch = 0;    }    /* We don't, bummer ! */    if (info->pKernelDRMVersion->version_major != 1 ||	info->pKernelDRMVersion->version_minor < req_minor ||	(info->pKernelDRMVersion->version_minor == req_minor &&	 info->pKernelDRMVersion->version_patchlevel < req_patch)) {        /* Incompatible drm version */	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,		   "[dri] RADEONDRIGetVersion failed because of a version "		   "mismatch.\n"		   "[dri] radeon.o kernel module version is %d.%d.%d "		   "but version 1.%d.%d or newer is needed.\n"		   "[dri] Disabling DRI.\n",		   info->pKernelDRMVersion->version_major,		   info->pKernelDRMVersion->version_minor,		   info->pKernelDRMVersion->version_patchlevel,		   req_minor,		   req_patch);	drmFreeVersion(info->pKernelDRMVersion);	info->pKernelDRMVersion = NULL;	return FALSE;    }    return TRUE;}/* Initialize the screen-specific data structures for the DRI and the * Radeon.  This is the main entry point to the device-specific * initialization code.  It calls device-independent DRI functions to * create the DRI data structures and initialize the DRI state. */Bool RADEONDRIScreenInit(ScreenPtr pScreen){    ScrnInfoPtr    pScrn   = xf86Screens[pScreen->myNum];    RADEONInfoPtr  info    = RADEONPTR(pScrn);    DRIInfoPtr     pDRIInfo;    RADEONDRIPtr   pRADEONDRI;    info->DRICloseScreen = NULL;    switch (info->CurrentLayout.pixel_code) {    case 8:    case 15:    case 24:	/* These modes are not supported (yet). */	xf86DrvMsg(pScreen->myNum, X_ERROR,		   "[dri] RADEONInitVisualConfigs failed "		   "(depth %d not supported).  "		   "Disabling DRI.\n", info->CurrentLayout.pixel_code);	return FALSE;	/* Only 16 and 32 color depths are supports currently. */    case 16:    case 32:	break;    }    radeon_drm_page_size = getpagesize();    /* Create the DRI data structure, and fill it in before calling the     * DRIScreenInit().     */    if (!(pDRIInfo = DRICreateInfoRec())) return FALSE;    info->pDRIInfo                       = pDRIInfo;    pDRIInfo->drmDriverName              = RADEON_DRIVER_NAME;    if ( (info->ChipFamily >= CHIP_FAMILY_R300) ) {       pDRIInfo->clientDriverName        = R300_DRIVER_NAME;    } else        if ( info->ChipFamily >= CHIP_FAMILY_R200 )       pDRIInfo->clientDriverName	 = R200_DRIVER_NAME;    else        pDRIInfo->clientDriverName	 = RADEON_DRIVER_NAME;    if (xf86LoaderCheckSymbol("DRICreatePCIBusID")) {	pDRIInfo->busIdString = DRICreatePCIBusID(info->PciInfo);    } else {	pDRIInfo->busIdString            = xalloc(64);	sprintf(pDRIInfo->busIdString,		"PCI:%d:%d:%d",		info->PciInfo->bus,		info->PciInfo->device,		info->PciInfo->func);    }    pDRIInfo->ddxDriverMajorVersion      = info->allowColorTiling ?    				RADEON_VERSION_MAJOR_TILED : RADEON_VERSION_MAJOR;    pDRIInfo->ddxDriverMinorVersion      = RADEON_VERSION_MINOR;    pDRIInfo->ddxDriverPatchVersion      = RADEON_VERSION_PATCH;    pDRIInfo->frameBufferPhysicalAddress = (void *)info->LinearAddr;    pDRIInfo->frameBufferSize            = info->FbMapSize - info->FbSecureSize;    pDRIInfo->frameBufferStride          = (pScrn->displayWidth *					    info->CurrentLayout.pixel_bytes);    pDRIInfo->ddxDrawableTableEntry      = RADEON_MAX_DRAWABLES;    pDRIInfo->maxDrawableTableEntry      = (SAREA_MAX_DRAWABLES					    < RADEON_MAX_DRAWABLES					    ? SAREA_MAX_DRAWABLES					    : RADEON_MAX_DRAWABLES);    /* kill DRIAdjustFrame. We adjust sarea frame info ourselves to work       correctly with pageflip + mergedfb/color tiling */    pDRIInfo->wrap.AdjustFrame = NULL;#ifdef PER_CONTEXT_SAREA    /* This is only here for testing per-context SAREAs.  When used, the       magic number below would be properly defined in a header file. */    info->perctx_sarea_size = 64 * 1024;#endif#ifdef NOT_DONE    /* FIXME: Need to extend DRI protocol to pass this size back to     * client for SAREA mapping that includes a device private record     */    pDRIInfo->SAREASize = ((sizeof(XF86DRISAREARec) + 0xfff)			   & 0x1000); /* round to page */    /* + shared memory device private rec */#else    /* For now the mapping works by using a fixed size defined     * in the SAREA header     */    if (sizeof(XF86DRISAREARec)+sizeof(RADEONSAREAPriv) > SAREA_MAX) {	ErrorF("Data does not fit in SAREA\n");	return FALSE;    }    pDRIInfo->SAREASize = SAREA_MAX;#endif    if (!(pRADEONDRI = (RADEONDRIPtr)xcalloc(sizeof(RADEONDRIRec),1))) {	DRIDestroyInfoRec(info->pDRIInfo);	info->pDRIInfo = NULL;	return FALSE;    }    pDRIInfo->devPrivate     = pRADEONDRI;    pDRIInfo->devPrivateSize = sizeof(RADEONDRIRec);    pDRIInfo->contextSize    = sizeof(RADEONDRIContextRec);    pDRIInfo->CreateContext  = RADEONCreateContext;    pDRIInfo->DestroyContext = RADEONDestroyContext;    pDRIInfo->SwapContext    = RADEONDRISwapContext;    pDRIInfo->InitBuffers    = RADEONDRIInitBuffers;    pDRIInfo->MoveBuffers    = RADEONDRIMoveBuffers;    pDRIInfo->bufferRequests = DRI_ALL_WINDOWS;    pDRIInfo->TransitionTo2d = RADEONDRITransitionTo2d;    pDRIInfo->TransitionTo3d = RADEONDRITransitionTo3d;    pDRIInfo->TransitionSingleToMulti3D = RADEONDRITransitionSingleToMulti3d;    pDRIInfo->TransitionMultiToSingle3D = RADEONDRITransitionMultiToSingle3d;    pDRIInfo->createDummyCtx     = TRUE;    pDRIInfo->createDummyCtxPriv = FALSE;    if (!DRIScreenInit(pScreen, pDRIInfo, &info->drmFD)) {	xf86DrvMsg(pScreen->myNum, X_ERROR,		   "[dri] DRIScreenInit failed.  Disabling DRI.\n");	xfree(pDRIInfo->devPrivate);	pDRIInfo->devPrivate = NULL;	DRIDestroyInfoRec(pDRIInfo);	pDRIInfo = NULL;	return FALSE;    }				/* Initialize AGP */    if (info->cardType==CARD_AGP && !RADEONDRIAgpInit(info, pScreen)) {	xf86DrvMsg(pScreen->myNum, X_ERROR,		   "[agp] AGP failed to initialize. Disabling the DRI.\n" );	xf86DrvMsg(pScreen->myNum, X_INFO,		   "[agp] You may want to make sure the agpgart kernel "		   "module\nis loaded before the radeon kernel module.\n");	RADEONDRICloseScreen(pScreen);	return FALSE;    }				/* Initialize PCI */    if ((info->cardType!=CARD_AGP) && !RADEONDRIPciInit(info, pScreen)) {	xf86DrvMsg(pScreen->myNum, X_ERROR,		   "[pci] PCI failed to initialize. Disabling the DRI.\n" );	RADEONDRICloseScreen(pScreen);	return FALSE;    }				/* DRIScreenInit doesn't add all the				 * common mappings.  Add additional				 * mappings here.				 */    if (!RADEONDRIMapInit(info, pScreen)) {	RADEONDRICloseScreen(pScreen);	return FALSE;    }				/* DRIScreenInit adds the frame buffer				   map, but we need it as well */    {	void *scratch_ptr;        int scratch_int;	DRIGetDeviceInfo(pScreen, &info->fbHandle,                         &scratch_int, &scratch_int,                         &scratch_int, &scratch_int,                         &scratch_ptr);    }				/* FIXME: When are these mappings unmapped? */    if (!RADEONInitVisualConfigs(pScreen)) {	RADEONDRICloseScreen(pScreen);	return FALSE;    }    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "[dri] Visual configs initialized\n");    return TRUE;}static Bool RADEONDRIDoCloseScreen(int scrnIndex, ScreenPtr pScreen){    ScrnInfoPtr    pScrn = xf86Screens[pScreen->myNum];    RADEONInfoPtr  info  = RADEONPTR(pScrn);    RADEONDRICloseScreen(pScreen);    pScreen->CloseScreen = info->DRICloseScreen;    return (*pScreen->CloseScreen)(scrnIndex, pScreen);}/* Finish initializing the device-dependent DRI state, and call * DRIFinishScreenInit() to complete the device-independent DRI * initialization. */Bool RADEONDRIFinishScreenInit(ScreenPtr pScreen){    ScrnInfoPtr         pScrn = xf86Screens[pScreen->myNum];    RADEONInfoPtr       info  = RADEONPTR(pScrn);    RADEONSAREAPrivPtr  pSAREAPriv;    RADEONDRIPtr        pRADEONDRI;    info->pDRIInfo->driverSwapMethod = DRI_HIDE_X_CONTEXT;    /* info->pDRIInfo->driverSwapMethod = DRI_SERVER_SWAP; */    /* NOTE: DRIFinishScreenInit must be called before *DRIKernelInit     * because *DRIKernelInit requires that the hardware lock is held by     * the X server, and the first time the hardware lock is grabbed is     * in DRIFinishScreenInit.     */    if (!DRIFinishScreenInit(pScreen)) {	RADEONDRICloseScreen(pScreen);	return FALSE;    }    /* Initialize the kernel data structures */    if (!RADEONDRIKernelInit(info, pScreen)) {	RADEONDRICloseScreen(pScreen);	return FALSE;    }    /* Initialize the vertex buffers list */    if (!RADEONDRIBufInit(info, pScreen)) {	RADEONDRICloseScreen(pScreen);	return FALSE;    }    /* Initialize IRQ */    RADEONDRIIrqInit(info, pScreen);    /* Initialize kernel GART memory manager */    RADEONDRIGartHeapInit(info, pScreen);    /* Initialize and start the CP if required */    RADEONDRICPInit(pScrn);    /* Initialize the SAREA private data structure */    pSAREAPriv = (RADEONSAREAPrivPtr)DRIGetSAREAPrivate(pScreen);    memset(pSAREAPriv, 0, sizeof(*pSAREAPriv));    pRADEONDRI                    = (RADEONDRIPtr)info->pDRIInfo->devPrivate;    pRADEONDRI->deviceID          = info->Chipset;    pRADEONDRI->width             = pScrn->virtualX;    pRADEONDRI->height            = pScrn->virtualY;    pRADEONDRI->depth             = pScrn->depth;    pRADEONDRI->bpp               = pScrn->bitsPerPixel;    pRADEONDRI->IsPCI             = (info->cardType!=CARD_AGP);    pRADEONDRI->AGPMode           = info->agpMode;    pRADEONDRI->frontOffset       = info->frontOffset;    pRADEONDRI->frontPitch        = info->frontPitch;    pRADEONDRI->backOffset        = info->backOffset;    pRADEONDRI->backPitch         = info->backPitch;    pRADEONDRI->depthOffset       = info->depthOffset;    pRADEONDRI->depthPitch        = info->depthPitch;    pRADEONDRI->textureOffset     = info->textureOffset;    pRADEONDRI->textureSize       = info->textureSize;    pRADEONDRI->log2TexGran       = info->log2TexGran;    pRADEONDRI->registerHandle    = info->registerHandle;    pRADEONDRI->registerSize      = info->registerSize;    pRADEONDRI->statusHandle      = info->ringReadPtrHandle;    pRADEONDRI->statusSize        = info->ringReadMapSize;    pRADEONDRI->gartTexHandle     = info->gartTexHandle;    pRADEONDRI->gartTexMapSize    = info->gartTexMapSize;    pRADEONDRI->log2GARTTexGran   = info->log2GARTTexGran;    pRADEONDRI->gartTexOffset     = info->gartTexStart;    pRADEONDRI->sarea_priv_offset = sizeof(XF86DRISAREARec);#ifdef PER_CONTEXT_SAREA    /* Set per-context SAREA size */    pRADEONDRI->perctx_sarea_size = info->perctx_sarea_size;#endif    info->directRenderingInited = TRUE;    /* Wrap CloseScreen */    info->DRICloseScreen = pScreen->CloseScreen;    pScreen->CloseScreen = RADEONDRIDoCloseScreen;    return TRUE;}void RADEONDRIInitPageFlip(ScreenPtr pScreen){    ScrnInfoPtr         pScrn = xf86Screens[pScreen->myNum];    RADEONInfoPtr       info  = RADEONPTR(pScrn);#ifdef USE_XAA   /* Have shadowfb run only while there is 3d active. This must happen late,     * after XAAInit has been called      */    if (!info->useEXA) {	if (!ShadowFBInit( pScreen, RADEONDRIRefreshArea )) {	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,		       "ShadowFB init failed, Page Flipping disabled\n");	    info->allowPageFlip = 0;	} else	    xf86DrvMsg(pScrn->scrnIndex, X_INFO,		       "ShadowFB initialized for Page Flipping\n");    } else#endif /* USE_XAA */    {       info->allowPageFlip = 0;    }}/** * This function will attempt to get the Radeon hardware back into shape * after a resume from disc. * * Charl P. Botha <http://cpbotha.net>