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  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 "xf86cmap.h"
  48. #include "xf86xv.h"
  49. #include "xorgVersion.h"
  50. #ifndef XSERVER_LIBPCIACCESS
  51. #error "libpciaccess needed"
  52. #endif
  53.  
  54. #include <pciaccess.h>
  55.  
  56. #include "state_tracker/drm_driver.h"
  57. #include "pipe/p_context.h"
  58. #include "xorg_tracker.h"
  59. #include "xorg_winsys.h"
  60.  
  61. #ifdef HAVE_LIBKMS
  62. #include "libkms/libkms.h"
  63. #endif
  64.  
  65. /*
  66.  * Functions and symbols exported to Xorg via pointers.
  67.  */
  68.  
  69. static Bool drv_pre_init(ScrnInfoPtr pScrn, int flags);
  70. static Bool drv_screen_init(SCREEN_INIT_ARGS_DECL);
  71. static Bool drv_switch_mode(SWITCH_MODE_ARGS_DECL);
  72. static void drv_adjust_frame(ADJUST_FRAME_ARGS_DECL);
  73. static Bool drv_enter_vt(VT_FUNC_ARGS_DECL);
  74. static Bool drv_enter_vt_flags(ScrnInfoPtr pScrn, int flags);
  75. static void drv_leave_vt(VT_FUNC_ARGS_DECL);
  76. static void drv_free_screen(FREE_SCREEN_ARGS_DECL);
  77. static ModeStatus drv_valid_mode(SCRN_ARG_TYPE arg, DisplayModePtr mode, Bool verbose,
  78.                                  int flags);
  79.  
  80. typedef enum
  81. {
  82.     OPTION_SW_CURSOR,
  83.     OPTION_2D_ACCEL,
  84.     OPTION_DEBUG_FALLBACK,
  85.     OPTION_THROTTLE_SWAP,
  86.     OPTION_THROTTLE_DIRTY,
  87.     OPTION_3D_ACCEL
  88. } drv_option_enums;
  89.  
  90. static const OptionInfoRec drv_options[] = {
  91.     {OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE},
  92.     {OPTION_2D_ACCEL, "2DAccel", OPTV_BOOLEAN, {0}, FALSE},
  93.     {OPTION_DEBUG_FALLBACK, "DebugFallback", OPTV_BOOLEAN, {0}, FALSE},
  94.     {OPTION_THROTTLE_SWAP, "SwapThrottling", OPTV_BOOLEAN, {0}, FALSE},
  95.     {OPTION_THROTTLE_DIRTY, "DirtyThrottling", OPTV_BOOLEAN, {0}, FALSE},
  96.     {OPTION_3D_ACCEL, "3DAccel", OPTV_BOOLEAN, {0}, FALSE},
  97.     {-1, NULL, OPTV_NONE, {0}, FALSE}
  98. };
  99.  
  100.  
  101. /*
  102.  * Exported Xorg driver functions to winsys
  103.  */
  104.  
  105. const OptionInfoRec *
  106. xorg_tracker_available_options(int chipid, int busid)
  107. {
  108.     return drv_options;
  109. }
  110.  
  111. void
  112. xorg_tracker_set_functions(ScrnInfoPtr scrn)
  113. {
  114.     scrn->PreInit = drv_pre_init;
  115.     scrn->ScreenInit = drv_screen_init;
  116.     scrn->SwitchMode = drv_switch_mode;
  117.     scrn->AdjustFrame = drv_adjust_frame;
  118.     scrn->EnterVT = drv_enter_vt;
  119.     scrn->LeaveVT = drv_leave_vt;
  120.     scrn->FreeScreen = drv_free_screen;
  121.     scrn->ValidMode = drv_valid_mode;
  122. }
  123.  
  124. Bool
  125. xorg_tracker_have_modesetting(ScrnInfoPtr pScrn, struct pci_device *device)
  126. {
  127.     char *BusID = malloc(64);
  128.     sprintf(BusID, "pci:%04x:%02x:%02x.%d",
  129.             device->domain, device->bus,
  130.             device->dev, device->func);
  131.  
  132.     if (drmCheckModesettingSupported(BusID)) {
  133.         xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
  134.                        "Drm modesetting not supported %s\n", BusID);
  135.         free(BusID);
  136.         return FALSE;
  137.     }
  138.  
  139.     xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
  140.                    "Drm modesetting supported on %s\n", BusID);
  141.  
  142.     free(BusID);
  143.     return TRUE;
  144. }
  145.  
  146.  
  147. /*
  148.  * Internal function definitions
  149.  */
  150.  
  151. static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn);
  152. static Bool drv_close_screen(CLOSE_SCREEN_ARGS_DECL);
  153.  
  154.  
  155. /*
  156.  * Internal functions
  157.  */
  158.  
  159. static Bool
  160. drv_get_rec(ScrnInfoPtr pScrn)
  161. {
  162.     if (pScrn->driverPrivate)
  163.         return TRUE;
  164.  
  165.     pScrn->driverPrivate = xnfcalloc(1, sizeof(modesettingRec));
  166.  
  167.     return TRUE;
  168. }
  169.  
  170. static void
  171. drv_free_rec(ScrnInfoPtr pScrn)
  172. {
  173.     if (!pScrn)
  174.         return;
  175.  
  176.     if (!pScrn->driverPrivate)
  177.         return;
  178.  
  179.     free(pScrn->driverPrivate);
  180.  
  181.     pScrn->driverPrivate = NULL;
  182. }
  183.  
  184. static void
  185. drv_probe_ddc(ScrnInfoPtr pScrn, int index)
  186. {
  187.     ConfiguredMonitor = NULL;
  188. }
  189.  
  190. static Bool
  191. drv_crtc_resize(ScrnInfoPtr pScrn, int width, int height)
  192. {
  193.     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
  194.     modesettingPtr ms = modesettingPTR(pScrn);
  195.     CustomizerPtr cust = ms->cust;
  196.     ScreenPtr pScreen = pScrn->pScreen;
  197.     int old_width, old_height;
  198.     PixmapPtr rootPixmap;
  199.     int i;
  200.  
  201.     if (width == pScrn->virtualX && height == pScrn->virtualY)
  202.         return TRUE;
  203.  
  204.     if (cust && cust->winsys_check_fb_size &&
  205.         !cust->winsys_check_fb_size(cust, width*pScrn->bitsPerPixel / 8,
  206.                                     height)) {
  207.         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
  208.                    "Requested framebuffer size %dx%dx%d will not fit "
  209.                    "in display memory.\n",
  210.                    width, height, pScrn->bitsPerPixel);
  211.         return FALSE;
  212.     }
  213.  
  214.     old_width = pScrn->virtualX;
  215.     old_height = pScrn->virtualY;
  216.     pScrn->virtualX = width;
  217.     pScrn->virtualY = height;
  218.  
  219.     /* ms->create_front_buffer will remove the old front buffer */
  220.  
  221.     rootPixmap = pScreen->GetScreenPixmap(pScreen);
  222.     if (!pScreen->ModifyPixmapHeader(rootPixmap, width, height, -1, -1, -1, NULL))
  223.         goto error_modify;
  224.  
  225.     pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
  226.  
  227.     if (!ms->create_front_buffer(pScrn) || !ms->bind_front_buffer(pScrn))
  228.         goto error_create;
  229.  
  230.     /*
  231.      * create && bind will turn off all crtc(s) in the kernel so we need to
  232.      * re-enable all the crtcs again. For real HW we might want to do this
  233.      * before destroying the old framebuffer.
  234.      */
  235.     for (i = 0; i < xf86_config->num_crtc; i++) {
  236.         xf86CrtcPtr crtc = xf86_config->crtc[i];
  237.  
  238.         if (!crtc->enabled)
  239.             continue;
  240.  
  241.         crtc->funcs->set_mode_major(crtc, &crtc->mode, crtc->rotation, crtc->x, crtc->y);
  242.     }
  243.  
  244.     return TRUE;
  245.  
  246.     /*
  247.      * This is the error recovery path.
  248.      */
  249. error_create:
  250.     if (!pScreen->ModifyPixmapHeader(rootPixmap, old_width, old_height, -1, -1, -1, NULL))
  251.         FatalError("failed to resize rootPixmap error path\n");
  252.  
  253.     pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
  254.  
  255. error_modify:
  256.     pScrn->virtualX = old_width;
  257.     pScrn->virtualY = old_height;
  258.  
  259.     if (ms->create_front_buffer(pScrn) && ms->bind_front_buffer(pScrn))
  260.         return FALSE;
  261.  
  262.     FatalError("failed to setup old framebuffer\n");
  263.     return FALSE;
  264. }
  265.  
  266. static const xf86CrtcConfigFuncsRec crtc_config_funcs = {
  267.     .resize = drv_crtc_resize
  268. };
  269.  
  270. static Bool
  271. drv_init_drm(ScrnInfoPtr pScrn)
  272. {
  273.     modesettingPtr ms = modesettingPTR(pScrn);
  274.  
  275.     /* deal with server regeneration */
  276.     if (ms->fd < 0) {
  277.         char *BusID;
  278.  
  279.         BusID = malloc(64);
  280.         sprintf(BusID, "PCI:%d:%d:%d",
  281.                 ((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
  282.                 ms->PciInfo->dev, ms->PciInfo->func
  283.             );
  284.  
  285.  
  286.         ms->fd = drmOpen(driver_descriptor.driver_name, BusID);
  287.         ms->isMaster = TRUE;
  288.         free(BusID);
  289.  
  290.         if (ms->fd >= 0)
  291.             return TRUE;
  292.  
  293.         return FALSE;
  294.     }
  295.  
  296.     return TRUE;
  297. }
  298.  
  299. static Bool
  300. drv_init_resource_management(ScrnInfoPtr pScrn)
  301. {
  302.     modesettingPtr ms = modesettingPTR(pScrn);
  303.     /*
  304.     ScreenPtr pScreen = pScrn->pScreen;
  305.     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
  306.     Bool fbAccessDisabled;
  307.     CARD8 *fbstart;
  308.      */
  309.  
  310.     if (ms->screen || ms->kms)
  311.         return TRUE;
  312.  
  313.     if (!ms->no3D)
  314.         ms->screen = driver_descriptor.create_screen(ms->fd);
  315.  
  316.     if (ms->screen)
  317.         return TRUE;
  318.  
  319. #ifdef HAVE_LIBKMS
  320.     if (!kms_create(ms->fd, &ms->kms))
  321.         return TRUE;
  322. #endif
  323.  
  324.     return FALSE;
  325. }
  326.  
  327. static void
  328. drv_cleanup_fences(ScrnInfoPtr pScrn)
  329. {
  330.     modesettingPtr ms = modesettingPTR(pScrn);
  331.     int i;
  332.  
  333.     assert(ms->screen);
  334.  
  335.     for (i = 0; i < XORG_NR_FENCES; i++) {
  336.         if (ms->fence[i]) {
  337.             ms->screen->fence_finish(ms->screen, ms->fence[i],
  338.                                      PIPE_TIMEOUT_INFINITE);
  339.             ms->screen->fence_reference(ms->screen, &ms->fence[i], NULL);
  340.         }
  341.     }
  342. }
  343.  
  344. static Bool
  345. drv_pre_init(ScrnInfoPtr pScrn, int flags)
  346. {
  347.     xf86CrtcConfigPtr xf86_config;
  348.     modesettingPtr ms;
  349.     rgb defaultWeight = { 0, 0, 0 };
  350.     EntityInfoPtr pEnt;
  351.     EntPtr msEnt = NULL;
  352.     CustomizerPtr cust;
  353.     Bool use3D;
  354.  
  355.     if (pScrn->numEntities != 1)
  356.         return FALSE;
  357.  
  358.     pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
  359.  
  360.     if (flags & PROBE_DETECT) {
  361.         drv_probe_ddc(pScrn, pEnt->index);
  362.         return TRUE;
  363.     }
  364.  
  365.     cust = (CustomizerPtr) pScrn->driverPrivate;
  366.     pScrn->driverPrivate = NULL;
  367.  
  368.     /* Allocate driverPrivate */
  369.     if (!drv_get_rec(pScrn))
  370.         return FALSE;
  371.  
  372.     ms = modesettingPTR(pScrn);
  373.     ms->pEnt = pEnt;
  374.     ms->cust = cust;
  375.     ms->fb_id = -1;
  376.  
  377.     pScrn->displayWidth = 640;         /* default it */
  378.  
  379.     if (ms->pEnt->location.type != BUS_PCI)
  380.         return FALSE;
  381.  
  382.     ms->PciInfo = xf86GetPciInfoForEntity(ms->pEnt->index);
  383.  
  384.     /* Allocate an entity private if necessary */
  385.     if (xf86IsEntityShared(pScrn->entityList[0])) {
  386.         FatalError("Entity");
  387. #if 0
  388.         msEnt = xf86GetEntityPrivate(pScrn->entityList[0],
  389.                                      modesettingEntityIndex)->ptr;
  390.         ms->entityPrivate = msEnt;
  391. #else
  392.         (void)msEnt;
  393. #endif
  394.     } else
  395.         ms->entityPrivate = NULL;
  396.  
  397.     if (xf86IsEntityShared(pScrn->entityList[0])) {
  398.         if (xf86IsPrimInitDone(pScrn->entityList[0])) {
  399.             /* do something */
  400.         } else {
  401.             xf86SetPrimInitDone(pScrn->entityList[0]);
  402.         }
  403.     }
  404.  
  405.     ms->fd = -1;
  406.     if (!drv_init_drm(pScrn))
  407.         return FALSE;
  408.  
  409.     pScrn->monitor = pScrn->confScreen->monitor;
  410.     pScrn->progClock = TRUE;
  411.     pScrn->rgbBits = 8;
  412.  
  413.     if (!xf86SetDepthBpp
  414.         (pScrn, 0, 0, 0,
  415.          PreferConvert24to32 | SupportConvert24to32 | Support32bppFb))
  416.         return FALSE;
  417.  
  418.     switch (pScrn->depth) {
  419.     case 8:
  420.     case 15:
  421.     case 16:
  422.     case 24:
  423.         break;
  424.     default:
  425.         xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
  426.                    "Given depth (%d) is not supported by the driver\n",
  427.                    pScrn->depth);
  428.         return FALSE;
  429.     }
  430.     xf86PrintDepthBpp(pScrn);
  431.  
  432.     if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
  433.         return FALSE;
  434.     if (!xf86SetDefaultVisual(pScrn, -1))
  435.         return FALSE;
  436.  
  437.     /* Process the options */
  438.     xf86CollectOptions(pScrn, NULL);
  439.     if (!(ms->Options = malloc(sizeof(drv_options))))
  440.         return FALSE;
  441.     memcpy(ms->Options, drv_options, sizeof(drv_options));
  442.     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, ms->Options);
  443.  
  444.     use3D = cust ? !cust->no_3d : TRUE;
  445.     ms->from_3D = xf86GetOptValBool(ms->Options, OPTION_3D_ACCEL,
  446.                                     &use3D) ?
  447.         X_CONFIG : X_PROBED;
  448.  
  449.     ms->no3D = !use3D;
  450.  
  451.     if (!drv_init_resource_management(pScrn)) {
  452.         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Could not init "
  453.                                                "Gallium3D or libKMS.\n");
  454.         return FALSE;
  455.     }
  456.  
  457.     /* Allocate an xf86CrtcConfig */
  458.     xf86CrtcConfigInit(pScrn, &crtc_config_funcs);
  459.     xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
  460.  
  461.     /* get max width and height */
  462.     {
  463.         drmModeResPtr res;
  464.         int max_width, max_height;
  465.  
  466.         res = drmModeGetResources(ms->fd);
  467.         max_width = res->max_width;
  468.         max_height = res->max_height;
  469.  
  470.         if (ms->screen) {
  471.             int max;
  472.  
  473.             max = ms->screen->get_param(ms->screen,
  474.                                         PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
  475.             max = 1 << (max - 1);
  476.             max_width = max < max_width ? max : max_width;
  477.             max_height = max < max_height ? max : max_height;
  478.         }
  479.  
  480.         xf86CrtcSetSizeRange(pScrn, res->min_width,
  481.                              res->min_height, max_width, max_height);
  482.         xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
  483.                    "Min width %d, Max Width %d.\n",
  484.                    res->min_width, max_width);
  485.         xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
  486.                    "Min height %d, Max Height %d.\n",
  487.                    res->min_height, max_height);
  488.         drmModeFreeResources(res);
  489.     }
  490.  
  491.  
  492.     if (xf86ReturnOptValBool(ms->Options, OPTION_SW_CURSOR, FALSE)) {
  493.         ms->SWCursor = TRUE;
  494.     }
  495.  
  496.     xorg_crtc_init(pScrn);
  497.     xorg_output_init(pScrn);
  498.  
  499.     if (cust && cust->winsys_pre_init && !cust->winsys_pre_init(cust, ms->fd))
  500.         return FALSE;
  501.  
  502.     if (!xf86InitialConfiguration(pScrn, TRUE)) {
  503.         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes.\n");
  504.         return FALSE;
  505.     }
  506.  
  507.     /*
  508.      * If the driver can do gamma correction, it should call xf86SetGamma() here.
  509.      */
  510.     {
  511.         Gamma zeros = { 0.0, 0.0, 0.0 };
  512.  
  513.         if (!xf86SetGamma(pScrn, zeros)) {
  514.             return FALSE;
  515.         }
  516.     }
  517.  
  518.     if (pScrn->modes == NULL) {
  519.         xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No modes.\n");
  520.         return FALSE;
  521.     }
  522.  
  523.     pScrn->currentMode = pScrn->modes;
  524.  
  525.     /* Set display resolution */
  526.     xf86SetDpi(pScrn, 0, 0);
  527.  
  528.     /* Load the required sub modules */
  529.     if (!xf86LoadSubModule(pScrn, "fb"))
  530.         return FALSE;
  531.  
  532.     /* XXX: these aren't needed when we are using libkms */
  533.     if (!xf86LoadSubModule(pScrn, "exa"))
  534.         return FALSE;
  535.  
  536. #ifdef DRI2
  537.     if (!xf86LoadSubModule(pScrn, "dri2"))
  538.         return FALSE;
  539. #endif
  540.  
  541.     return TRUE;
  542. }
  543.  
  544. void xorg_flush(ScreenPtr pScreen)
  545. {
  546.     modesettingPtr ms = modesettingPTR(xf86ScreenToScrn(pScreen));
  547.  
  548.     if (ms->ctx) {
  549.         int j;
  550.  
  551.         ms->ctx->flush(ms->ctx,
  552.                        ms->dirtyThrottling ?
  553.                        &ms->fence[XORG_NR_FENCES-1] :
  554.                        NULL, 0);
  555.        
  556.         if (ms->dirtyThrottling) {
  557.             if (ms->fence[0])
  558.                 ms->ctx->screen->fence_finish(ms->ctx->screen,
  559.                                               ms->fence[0],
  560.                                               PIPE_TIMEOUT_INFINITE);
  561.  
  562.             /* The amount of rendering generated by a block handler can be
  563.              * quite small.  Let us get a fair way ahead of hardware before
  564.              * throttling.
  565.              */
  566.             for (j = 0; j < XORG_NR_FENCES - 1; j++)
  567.                 ms->screen->fence_reference(ms->screen,
  568.                                             &ms->fence[j],
  569.                                             ms->fence[j+1]);
  570.  
  571.             ms->screen->fence_reference(ms->screen,
  572.                                         &ms->fence[XORG_NR_FENCES-1],
  573.                                         NULL);
  574.         }
  575.     }
  576.  
  577. #ifdef DRM_MODE_FEATURE_DIRTYFB
  578.     {
  579.         RegionPtr dirty = DamageRegion(ms->damage);
  580.         unsigned num_cliprects = REGION_NUM_RECTS(dirty);
  581.  
  582.         if (num_cliprects) {
  583.             drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
  584.             BoxPtr rect = REGION_RECTS(dirty);
  585.             int i, ret;
  586.  
  587.             /* XXX no need for copy? */
  588.             for (i = 0; i < num_cliprects; i++, rect++) {
  589.                 clip[i].x1 = rect->x1;
  590.                 clip[i].y1 = rect->y1;
  591.                 clip[i].x2 = rect->x2;
  592.                 clip[i].y2 = rect->y2;
  593.             }
  594.  
  595.             /* TODO query connector property to see if this is needed */
  596.             ret = drmModeDirtyFB(ms->fd, ms->fb_id, clip, num_cliprects);
  597.             if (ret) {
  598.                 debug_printf("%s: failed to send dirty (%i, %s)\n",
  599.                              __func__, ret, strerror(-ret));
  600.             }
  601.  
  602.             DamageEmpty(ms->damage);
  603.         }
  604.     }
  605. #endif
  606. }
  607.  
  608. static void drv_block_handler(BLOCKHANDLER_ARGS_DECL)
  609. {
  610.     SCREEN_PTR(arg);
  611.     modesettingPtr ms = modesettingPTR(xf86ScreenToScrn(pScreen));
  612.  
  613.     pScreen->BlockHandler = ms->blockHandler;
  614.     pScreen->BlockHandler(BLOCKHANDLER_ARGS);
  615.     pScreen->BlockHandler = drv_block_handler;
  616.  
  617.     xorg_flush(pScreen);
  618. }
  619.  
  620. static Bool
  621. drv_create_screen_resources(ScreenPtr pScreen)
  622. {
  623.     ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
  624.     modesettingPtr ms = modesettingPTR(pScrn);
  625.     PixmapPtr rootPixmap;
  626.     Bool ret;
  627.  
  628.     ms->noEvict = TRUE;
  629.  
  630.     pScreen->CreateScreenResources = ms->createScreenResources;
  631.     ret = pScreen->CreateScreenResources(pScreen);
  632.     pScreen->CreateScreenResources = drv_create_screen_resources;
  633.  
  634.     ms->bind_front_buffer(pScrn);
  635.  
  636.     ms->noEvict = FALSE;
  637.  
  638.     drv_adjust_frame(ADJUST_FRAME_ARGS(pScrn, pScrn->frameX0, pScrn->frameY0));
  639.  
  640. #ifdef DRM_MODE_FEATURE_DIRTYFB
  641.     rootPixmap = pScreen->GetScreenPixmap(pScreen);
  642.     ms->damage = DamageCreate(NULL, NULL, DamageReportNone, TRUE,
  643.                               pScreen, rootPixmap);
  644.  
  645.     if (ms->damage) {
  646.        DamageRegister(&rootPixmap->drawable, ms->damage);
  647.  
  648.        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Damage tracking initialized\n");
  649.     } else {
  650.        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
  651.                   "Failed to create screen damage record\n");
  652.        return FALSE;
  653.     }
  654. #else
  655.     (void)rootPixmap;
  656. #endif
  657.  
  658.     return ret;
  659. }
  660.  
  661. static Bool
  662. drv_set_master(ScrnInfoPtr pScrn)
  663. {
  664.     modesettingPtr ms = modesettingPTR(pScrn);
  665.  
  666.     if (!ms->isMaster && drmSetMaster(ms->fd) != 0) {
  667.         if (errno == EINVAL) {
  668.             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
  669.                        "drmSetMaster failed: 2.6.29 or newer kernel required for "
  670.                        "multi-server DRI\n");
  671.         } else {
  672.             xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
  673.                        "drmSetMaster failed: %s\n", strerror(errno));
  674.         }
  675.         return FALSE;
  676.     }
  677.  
  678.     ms->isMaster = TRUE;
  679.     return TRUE;
  680. }
  681.  
  682.  
  683. static void drv_load_palette(ScrnInfoPtr pScrn, int numColors,
  684.                              int *indices, LOCO *colors, VisualPtr pVisual)
  685. {
  686.     xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
  687.     modesettingPtr ms = modesettingPTR(pScrn);
  688.     int index, j, i;
  689.     int c;
  690.  
  691.     switch(pScrn->depth) {
  692.     case 15:
  693.         for (i = 0; i < numColors; i++) {
  694.             index = indices[i];
  695.             for (j = 0; j < 8; j++) {
  696.                 ms->lut_r[index * 8 + j] = colors[index].red << 8;
  697.                 ms->lut_g[index * 8 + j] = colors[index].green << 8;
  698.                 ms->lut_b[index * 8 + j] = colors[index].blue << 8;
  699.             }
  700.         }
  701.         break;
  702.     case 16:
  703.         for (i = 0; i < numColors; i++) {
  704.             index = indices[i];
  705.  
  706.             if (index < 32) {
  707.                 for (j = 0; j < 8; j++) {
  708.                     ms->lut_r[index * 8 + j] = colors[index].red << 8;
  709.                     ms->lut_b[index * 8 + j] = colors[index].blue << 8;
  710.                 }
  711.             }
  712.  
  713.             for (j = 0; j < 4; j++) {
  714.                 ms->lut_g[index * 4 + j] = colors[index].green << 8;
  715.             }
  716.         }
  717.         break;
  718.     default:
  719.         for (i = 0; i < numColors; i++) {
  720.             index = indices[i];
  721.             ms->lut_r[index] = colors[index].red << 8;
  722.             ms->lut_g[index] = colors[index].green << 8;
  723.             ms->lut_b[index] = colors[index].blue << 8;
  724.         }
  725.         break;
  726.     }
  727.  
  728.     for (c = 0; c < xf86_config->num_crtc; c++) {
  729.         xf86CrtcPtr crtc = xf86_config->crtc[c];
  730.  
  731.         /* Make the change through RandR */
  732. #ifdef RANDR_12_INTERFACE
  733.         if (crtc->randr_crtc)
  734.             RRCrtcGammaSet(crtc->randr_crtc, ms->lut_r, ms->lut_g, ms->lut_b);
  735.         else
  736. #endif
  737.             crtc->funcs->gamma_set(crtc, ms->lut_r, ms->lut_g, ms->lut_b, 256);
  738.     }
  739. }
  740.  
  741.  
  742. static Bool
  743. drv_screen_init(SCREEN_INIT_ARGS_DECL)
  744. {
  745.     ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
  746.     modesettingPtr ms = modesettingPTR(pScrn);
  747.     VisualPtr visual;
  748.     CustomizerPtr cust = ms->cust;
  749.     MessageType from_st;
  750.     MessageType from_dt;
  751.  
  752.     if (!drv_set_master(pScrn))
  753.         return FALSE;
  754.  
  755.     if (!drv_init_front_buffer_functions(pScrn)) {
  756.         FatalError("Could not init front buffer manager");
  757.         return FALSE;
  758.     }
  759.  
  760.     pScrn->pScreen = pScreen;
  761.  
  762.     /* HW dependent - FIXME */
  763.     pScrn->displayWidth = pScrn->virtualX;
  764.  
  765.     miClearVisualTypes();
  766.  
  767.     if (!miSetVisualTypes(pScrn->depth,
  768.                           miGetDefaultVisualMask(pScrn->depth),
  769.                           pScrn->rgbBits, pScrn->defaultVisual))
  770.         return FALSE;
  771.  
  772.     if (!miSetPixmapDepths())
  773.         return FALSE;
  774.  
  775.     pScrn->memPhysBase = 0;
  776.     pScrn->fbOffset = 0;
  777.  
  778.     if (!fbScreenInit(pScreen, NULL,
  779.                       pScrn->virtualX, pScrn->virtualY,
  780.                       pScrn->xDpi, pScrn->yDpi,
  781.                       pScrn->displayWidth, pScrn->bitsPerPixel))
  782.         return FALSE;
  783.  
  784.     if (pScrn->bitsPerPixel > 8) {
  785.         /* Fixup RGB ordering */
  786.         visual = pScreen->visuals + pScreen->numVisuals;
  787.         while (--visual >= pScreen->visuals) {
  788.             if ((visual->class | DynamicClass) == DirectColor) {
  789.                 visual->offsetRed = pScrn->offset.red;
  790.                 visual->offsetGreen = pScrn->offset.green;
  791.                 visual->offsetBlue = pScrn->offset.blue;
  792.                 visual->redMask = pScrn->mask.red;
  793.                 visual->greenMask = pScrn->mask.green;
  794.                 visual->blueMask = pScrn->mask.blue;
  795.             }
  796.         }
  797.     }
  798.  
  799.     fbPictureInit(pScreen, NULL, 0);
  800.  
  801.     ms->blockHandler = pScreen->BlockHandler;
  802.     pScreen->BlockHandler = drv_block_handler;
  803.     ms->createScreenResources = pScreen->CreateScreenResources;
  804.     pScreen->CreateScreenResources = drv_create_screen_resources;
  805.  
  806.     xf86SetBlackWhitePixels(pScreen);
  807.  
  808.     ms->accelerate_2d = xf86ReturnOptValBool(ms->Options, OPTION_2D_ACCEL, FALSE);
  809.     ms->debug_fallback = xf86ReturnOptValBool(ms->Options, OPTION_DEBUG_FALLBACK, ms->accelerate_2d);
  810.  
  811.     if (cust && cust->winsys_screen_init)
  812.         cust->winsys_screen_init(cust);
  813.  
  814.     ms->swapThrottling = cust ?  cust->swap_throttling : TRUE;
  815.     from_st = xf86GetOptValBool(ms->Options, OPTION_THROTTLE_SWAP,
  816.                                 &ms->swapThrottling) ?
  817.         X_CONFIG : X_DEFAULT;
  818.  
  819.     ms->dirtyThrottling = cust ?  cust->dirty_throttling : FALSE;
  820.     from_dt = xf86GetOptValBool(ms->Options, OPTION_THROTTLE_DIRTY,
  821.                                 &ms->dirtyThrottling) ?
  822.         X_CONFIG : X_DEFAULT;
  823.  
  824.     if (ms->screen) {
  825.         ms->exa = xorg_exa_init(pScrn, ms->accelerate_2d);
  826.  
  827.         xorg_xv_init(pScreen);
  828. #ifdef DRI2
  829.         xorg_dri2_init(pScreen);
  830. #endif
  831.     }
  832.  
  833.     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "#################################\n");
  834.     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "# Useful debugging info follows #\n");
  835.     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "#################################\n");
  836.     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Using %s backend\n",
  837.                ms->screen ? "Gallium3D" : "libkms");
  838.     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "2D Acceleration is %s\n",
  839.                ms->screen && ms->accelerate_2d ? "enabled" : "disabled");
  840.     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Fallback debugging is %s\n",
  841.                ms->debug_fallback ? "enabled" : "disabled");
  842. #ifdef DRI2
  843.     xf86DrvMsg(pScrn->scrnIndex, ms->from_3D, "3D Acceleration is %s\n",
  844.                ms->screen ? "enabled" : "disabled");
  845. #else
  846.     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "3D Acceleration is disabled\n");
  847. #endif
  848.     xf86DrvMsg(pScrn->scrnIndex, from_st, "Swap Throttling is %s.\n",
  849.                ms->swapThrottling ? "enabled" : "disabled");
  850.     xf86DrvMsg(pScrn->scrnIndex, from_dt, "Dirty Throttling is %s.\n",
  851.                ms->dirtyThrottling ? "enabled" : "disabled");
  852.  
  853.     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
  854.  
  855.     xf86SetBackingStore(pScreen);
  856.     xf86SetSilkenMouse(pScreen);
  857.     miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
  858.  
  859.     /* Need to extend HWcursor support to handle mask interleave */
  860.     if (!ms->SWCursor)
  861.         xf86_cursors_init(pScreen, 64, 64,
  862.                           HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 |
  863.                           HARDWARE_CURSOR_ARGB |
  864.                           ((cust && cust->unhidden_hw_cursor_update) ?
  865.                            HARDWARE_CURSOR_UPDATE_UNHIDDEN : 0));
  866.  
  867.     /* Must force it before EnterVT, so we are in control of VT and
  868.      * later memory should be bound when allocating, e.g rotate_mem */
  869.     pScrn->vtSema = TRUE;
  870.  
  871.     pScreen->SaveScreen = xf86SaveScreen;
  872.     ms->CloseScreen = pScreen->CloseScreen;
  873.     pScreen->CloseScreen = drv_close_screen;
  874.  
  875.     if (!xf86CrtcScreenInit(pScreen))
  876.         return FALSE;
  877.  
  878.     if (!miCreateDefColormap(pScreen))
  879.         return FALSE;
  880.     if (!xf86HandleColormaps(pScreen, 256, 8, drv_load_palette, NULL,
  881.                              CMAP_PALETTED_TRUECOLOR |
  882.                              CMAP_RELOAD_ON_MODE_SWITCH))
  883.         return FALSE;
  884.  
  885.     xf86DPMSInit(pScreen, xf86DPMSSet, 0);
  886.  
  887.     if (serverGeneration == 1)
  888.         xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
  889.  
  890.     return drv_enter_vt_flags(pScrn, 1);
  891. }
  892.  
  893. static void
  894. drv_adjust_frame(ADJUST_FRAME_ARGS_DECL)
  895. {
  896.     SCRN_INFO_PTR(arg);
  897.     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
  898.     xf86OutputPtr output = config->output[config->compat_output];
  899.     xf86CrtcPtr crtc = output->crtc;
  900.  
  901.     if (crtc && crtc->enabled) {
  902.         crtc->funcs->set_mode_major(crtc, pScrn->currentMode,
  903.                                     RR_Rotate_0, x, y);
  904.         crtc->x = output->initial_x + x;
  905.         crtc->y = output->initial_y + y;
  906.     }
  907. }
  908.  
  909. static void
  910. drv_free_screen(FREE_SCREEN_ARGS_DECL)
  911. {
  912.     SCRN_INFO_PTR(arg);
  913.     drv_free_rec(pScrn);
  914. }
  915.  
  916. static void
  917. drv_leave_vt(VT_FUNC_ARGS_DECL)
  918. {
  919.     SCRN_INFO_PTR(arg);
  920.     modesettingPtr ms = modesettingPTR(pScrn);
  921.     xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
  922.     CustomizerPtr cust = ms->cust;
  923.     int o;
  924.  
  925.     if (cust && cust->winsys_leave_vt)
  926.         cust->winsys_leave_vt(cust);
  927.  
  928.     for (o = 0; o < config->num_crtc; o++) {
  929.         xf86CrtcPtr crtc = config->crtc[o];
  930.  
  931.         xorg_crtc_cursor_destroy(crtc);
  932.  
  933.         if (crtc->rotatedPixmap || crtc->rotatedData) {
  934.             crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
  935.                                         crtc->rotatedData);
  936.             crtc->rotatedPixmap = NULL;
  937.             crtc->rotatedData = NULL;
  938.         }
  939.     }
  940.  
  941.     if (ms->fb_id != -1) {
  942.         drmModeRmFB(ms->fd, ms->fb_id);
  943.         ms->fb_id = -1;
  944.     }
  945.  
  946.     /* idle hardware */
  947.     if (!ms->kms)
  948.         drv_cleanup_fences(pScrn);
  949.  
  950.     if (drmDropMaster(ms->fd))
  951.         xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
  952.                    "drmDropMaster failed: %s\n", strerror(errno));
  953.  
  954.     ms->isMaster = FALSE;
  955.     pScrn->vtSema = FALSE;
  956. }
  957.  
  958. /*
  959.  * This gets called when gaining control of the VT, and from ScreenInit().
  960.  */
  961. static Bool
  962. drv_enter_vt_flags(ScrnInfoPtr pScrn, int flags)
  963. {
  964.     modesettingPtr ms = modesettingPTR(pScrn);
  965.     CustomizerPtr cust = ms->cust;
  966.  
  967.     if (!drv_set_master(pScrn))
  968.         return FALSE;
  969.  
  970.     if (!ms->create_front_buffer(pScrn))
  971.         return FALSE;
  972.  
  973.     if (!flags && !ms->bind_front_buffer(pScrn))
  974.         return FALSE;
  975.  
  976.     if (!xf86SetDesiredModes(pScrn))
  977.         return FALSE;
  978.  
  979.     if (cust && cust->winsys_enter_vt)
  980.         cust->winsys_enter_vt(cust);
  981.  
  982.     return TRUE;
  983. }
  984.  
  985. static Bool
  986. drv_enter_vt(VT_FUNC_ARGS_DECL)
  987. {
  988.     SCRN_INFO_PTR(arg);
  989.     return drv_enter_vt_flags(pScrn, 0);
  990. }
  991.  
  992. static Bool
  993. drv_switch_mode(SWITCH_MODE_ARGS_DECL)
  994. {
  995.     SCRN_INFO_PTR(arg);
  996.  
  997.     return xf86SetSingleMode(pScrn, mode, RR_Rotate_0);
  998. }
  999.  
  1000. static Bool
  1001. drv_close_screen(CLOSE_SCREEN_ARGS_DECL)
  1002. {
  1003.     ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
  1004.     modesettingPtr ms = modesettingPTR(pScrn);
  1005.     CustomizerPtr cust = ms->cust;
  1006.  
  1007.     if (ms->cursor) {
  1008.        FreeCursor(ms->cursor, None);
  1009.        ms->cursor = NULL;
  1010.     }
  1011.  
  1012.     if (cust && cust->winsys_screen_close)
  1013.         cust->winsys_screen_close(cust);
  1014.  
  1015. #ifdef DRI2
  1016.     if (ms->screen)
  1017.         xorg_dri2_close(pScreen);
  1018. #endif
  1019.  
  1020.     pScreen->BlockHandler = ms->blockHandler;
  1021.     pScreen->CreateScreenResources = ms->createScreenResources;
  1022.  
  1023. #ifdef DRM_MODE_FEATURE_DIRTYFB
  1024.     if (ms->damage) {
  1025.         DamageUnregister(&pScreen->GetScreenPixmap(pScreen)->drawable, ms->damage);
  1026.         DamageDestroy(ms->damage);
  1027.         ms->damage = NULL;
  1028.     }
  1029. #endif
  1030.  
  1031.     ms->destroy_front_buffer(pScrn);
  1032.  
  1033.     if (ms->exa)
  1034.         xorg_exa_close(pScrn);
  1035.     ms->exa = NULL;
  1036.  
  1037.     /* calls drop master make sure we don't talk to 3D HW after that */
  1038.     if (pScrn->vtSema) {
  1039.         drv_leave_vt(VT_FUNC_ARGS);
  1040.     }
  1041.  
  1042.     pScrn->vtSema = FALSE;
  1043.     pScreen->CloseScreen = ms->CloseScreen;
  1044.  
  1045.     return (*pScreen->CloseScreen) (CLOSE_SCREEN_ARGS);
  1046. }
  1047.  
  1048. static ModeStatus
  1049. drv_valid_mode(SCRN_ARG_TYPE arg, DisplayModePtr mode, Bool verbose, int flags)
  1050. {
  1051.     return MODE_OK;
  1052. }
  1053.  
  1054.  
  1055. /*
  1056.  * Front buffer backing store functions.
  1057.  */
  1058.  
  1059. static Bool
  1060. drv_destroy_front_buffer_ga3d(ScrnInfoPtr pScrn)
  1061. {
  1062.     modesettingPtr ms = modesettingPTR(pScrn);
  1063.  
  1064.     if (!ms->root_texture)
  1065.         return TRUE;
  1066.  
  1067.     if (ms->fb_id != -1) {
  1068.         drmModeRmFB(ms->fd, ms->fb_id);
  1069.         ms->fb_id = -1;
  1070.     }
  1071.  
  1072.     pipe_resource_reference(&ms->root_texture, NULL);
  1073.     return TRUE;
  1074. }
  1075.  
  1076. static Bool
  1077. drv_create_front_buffer_ga3d(ScrnInfoPtr pScrn)
  1078. {
  1079.     modesettingPtr ms = modesettingPTR(pScrn);
  1080.     struct pipe_resource *tex;
  1081.     struct winsys_handle whandle;
  1082.     unsigned fb_id;
  1083.     int ret;
  1084.  
  1085.     ms->noEvict = TRUE;
  1086.  
  1087.     tex = xorg_exa_create_root_texture(pScrn, pScrn->virtualX, pScrn->virtualY,
  1088.                                        pScrn->depth, pScrn->bitsPerPixel);
  1089.  
  1090.     if (!tex)
  1091.         return FALSE;
  1092.  
  1093.     memset(&whandle, 0, sizeof(whandle));
  1094.     whandle.type = DRM_API_HANDLE_TYPE_KMS;
  1095.  
  1096.     if (!ms->screen->resource_get_handle(ms->screen, tex, &whandle))
  1097.         goto err_destroy;
  1098.  
  1099.     ret = drmModeAddFB(ms->fd,
  1100.                        pScrn->virtualX,
  1101.                        pScrn->virtualY,
  1102.                        pScrn->depth,
  1103.                        pScrn->bitsPerPixel,
  1104.                        whandle.stride,
  1105.                        whandle.handle,
  1106.                        &fb_id);
  1107.     if (ret) {
  1108.         debug_printf("%s: failed to create framebuffer (%i, %s)\n",
  1109.                      __func__, ret, strerror(-ret));
  1110.         goto err_destroy;
  1111.     }
  1112.  
  1113.     if (!drv_destroy_front_buffer_ga3d(pScrn))
  1114.         FatalError("%s: failed to take down old framebuffer\n", __func__);
  1115.  
  1116.     pScrn->frameX0 = 0;
  1117.     pScrn->frameY0 = 0;
  1118.     drv_adjust_frame(ADJUST_FRAME_ARGS(pScrn, pScrn->frameX0, pScrn->frameY0));
  1119.  
  1120.     pipe_resource_reference(&ms->root_texture, tex);
  1121.     pipe_resource_reference(&tex, NULL);
  1122.     ms->fb_id = fb_id;
  1123.  
  1124.     return TRUE;
  1125.  
  1126. err_destroy:
  1127.     pipe_resource_reference(&tex, NULL);
  1128.     return FALSE;
  1129. }
  1130.  
  1131. static Bool
  1132. drv_bind_front_buffer_ga3d(ScrnInfoPtr pScrn)
  1133. {
  1134.     modesettingPtr ms = modesettingPTR(pScrn);
  1135.     ScreenPtr pScreen = pScrn->pScreen;
  1136.     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
  1137.     struct pipe_resource *check;
  1138.  
  1139.     xorg_exa_set_displayed_usage(rootPixmap);
  1140.     xorg_exa_set_shared_usage(rootPixmap);
  1141.     xorg_exa_set_texture(rootPixmap, ms->root_texture);
  1142.     if (!pScreen->ModifyPixmapHeader(rootPixmap, -1, -1, -1, -1, -1, NULL))
  1143.         FatalError("Couldn't adjust screen pixmap\n");
  1144.  
  1145.     check = xorg_exa_get_texture(rootPixmap);
  1146.     if (ms->root_texture != check)
  1147.         FatalError("Created new root texture\n");
  1148.  
  1149.     pipe_resource_reference(&check, NULL);
  1150.     return TRUE;
  1151. }
  1152.  
  1153. #ifdef HAVE_LIBKMS
  1154. static Bool
  1155. drv_destroy_front_buffer_kms(ScrnInfoPtr pScrn)
  1156. {
  1157.     modesettingPtr ms = modesettingPTR(pScrn);
  1158.     ScreenPtr pScreen = pScrn->pScreen;
  1159.     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
  1160.  
  1161.     /* XXX Do something with the rootPixmap.
  1162.      * This currently works fine but if we are getting crashes in
  1163.      * the fb functions after VT switches maybe look more into it.
  1164.      */
  1165.     (void)rootPixmap;
  1166.  
  1167.     if (!ms->root_bo)
  1168.         return TRUE;
  1169.  
  1170.     if (ms->fb_id != -1) {
  1171.         drmModeRmFB(ms->fd, ms->fb_id);
  1172.         ms->fb_id = -1;
  1173.     }
  1174.  
  1175.     kms_bo_unmap(ms->root_bo);
  1176.     kms_bo_destroy(&ms->root_bo);
  1177.     return TRUE;
  1178. }
  1179.  
  1180. static Bool
  1181. drv_create_front_buffer_kms(ScrnInfoPtr pScrn)
  1182. {
  1183.     modesettingPtr ms = modesettingPTR(pScrn);
  1184.     unsigned handle, stride;
  1185.     struct kms_bo *bo;
  1186.     unsigned attr[8];
  1187.     unsigned fb_id;
  1188.     int ret;
  1189.  
  1190.     attr[0] = KMS_BO_TYPE;
  1191. #ifdef KMS_BO_TYPE_SCANOUT_X8R8G8B8
  1192.     attr[1] = KMS_BO_TYPE_SCANOUT_X8R8G8B8;
  1193. #else
  1194.     attr[1] = KMS_BO_TYPE_SCANOUT;
  1195. #endif
  1196.     attr[2] = KMS_WIDTH;
  1197.     attr[3] = pScrn->virtualX;
  1198.     attr[4] = KMS_HEIGHT;
  1199.     attr[5] = pScrn->virtualY;
  1200.     attr[6] = 0;
  1201.  
  1202.     if (kms_bo_create(ms->kms, attr, &bo))
  1203.         return FALSE;
  1204.  
  1205.     if (kms_bo_get_prop(bo, KMS_PITCH, &stride))
  1206.         goto err_destroy;
  1207.  
  1208.     if (kms_bo_get_prop(bo, KMS_HANDLE, &handle))
  1209.         goto err_destroy;
  1210.  
  1211.     ret = drmModeAddFB(ms->fd,
  1212.                        pScrn->virtualX,
  1213.                        pScrn->virtualY,
  1214.                        pScrn->depth,
  1215.                        pScrn->bitsPerPixel,
  1216.                        stride,
  1217.                        handle,
  1218.                        &fb_id);
  1219.     if (ret) {
  1220.         debug_printf("%s: failed to create framebuffer (%i, %s)",
  1221.                      __func__, ret, strerror(-ret));
  1222.         goto err_destroy;
  1223.     }
  1224.  
  1225.     if (!drv_destroy_front_buffer_kms(pScrn))
  1226.         FatalError("%s: could not takedown old bo", __func__);
  1227.  
  1228.     pScrn->frameX0 = 0;
  1229.     pScrn->frameY0 = 0;
  1230.     drv_adjust_frame(ADJUST_FRAME_ARGS(pScrn, pScrn->frameX0, pScrn->frameY0));
  1231.     ms->root_bo = bo;
  1232.     ms->fb_id = fb_id;
  1233.  
  1234.     return TRUE;
  1235.  
  1236. err_destroy:
  1237.     kms_bo_destroy(&bo);
  1238.     return FALSE;
  1239. }
  1240.  
  1241. static Bool
  1242. drv_bind_front_buffer_kms(ScrnInfoPtr pScrn)
  1243. {
  1244.     modesettingPtr ms = modesettingPTR(pScrn);
  1245.     ScreenPtr pScreen = pScrn->pScreen;
  1246.     PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
  1247.     unsigned stride;
  1248.     void *ptr;
  1249.  
  1250.     if (kms_bo_get_prop(ms->root_bo, KMS_PITCH, &stride))
  1251.         return FALSE;
  1252.  
  1253.     if (kms_bo_map(ms->root_bo, &ptr))
  1254.         goto err_destroy;
  1255.  
  1256.     pScreen->ModifyPixmapHeader(rootPixmap,
  1257.                                 pScrn->virtualX,
  1258.                                 pScrn->virtualY,
  1259.                                 pScreen->rootDepth,
  1260.                                 pScrn->bitsPerPixel,
  1261.                                 stride,
  1262.                                 ptr);
  1263.  
  1264. #if (XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(1, 9, 99, 1, 0))
  1265.  
  1266.     /* This a hack to work around EnableDisableFBAccess setting the pointer
  1267.      * the real fix would be to replace pScrn->EnableDisableFBAccess hook
  1268.      * and set the rootPixmap->devPrivate.ptr to something valid before that.
  1269.      *
  1270.      * But in its infinit visdome something uses either this some times before
  1271.      * that, so our hook doesn't get called before the crash happens.
  1272.      */
  1273.     pScrn->pixmapPrivate.ptr = ptr;
  1274.  
  1275. #endif
  1276.  
  1277.     return TRUE;
  1278.  
  1279. err_destroy:
  1280.     kms_bo_destroy(&ms->root_bo);
  1281.     return FALSE;
  1282. }
  1283. #endif /* HAVE_LIBKMS */
  1284.  
  1285. static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn)
  1286. {
  1287.     modesettingPtr ms = modesettingPTR(pScrn);
  1288.     if (ms->screen) {
  1289.         ms->destroy_front_buffer = drv_destroy_front_buffer_ga3d;
  1290.         ms->create_front_buffer = drv_create_front_buffer_ga3d;
  1291.         ms->bind_front_buffer = drv_bind_front_buffer_ga3d;
  1292. #ifdef HAVE_LIBKMS
  1293.     } else if (ms->kms) {
  1294.         ms->destroy_front_buffer = drv_destroy_front_buffer_kms;
  1295.         ms->create_front_buffer = drv_create_front_buffer_kms;
  1296.         ms->bind_front_buffer = drv_bind_front_buffer_kms;
  1297. #endif
  1298.     } else
  1299.         return FALSE;
  1300.  
  1301.     return TRUE;
  1302. }
  1303.  
  1304. CustomizerPtr xorg_customizer(ScrnInfoPtr pScrn)
  1305. {
  1306.     return modesettingPTR(pScrn)->cust;
  1307. }
  1308.  
  1309. Bool xorg_has_gallium(ScrnInfoPtr pScrn)
  1310. {
  1311.     return modesettingPTR(pScrn)->screen != NULL;
  1312. }
  1313.  
  1314. /* vim: set sw=4 ts=8 sts=4: */
  1315.