xorg_driver.c revision b1ef3e08634e3c382c5dc10c3000427a8f7a4bfa 
1/*
2 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 *
26 * Author: Alan Hourihane <alanh@tungstengraphics.com>
27 * Author: Jakob Bornecrantz <wallbraker@gmail.com>
28 *
29 */
30
31
32#include "xorg-server.h"
33#include "xf86.h"
34#include "xf86_OSproc.h"
35#include "compiler.h"
36#include "xf86PciInfo.h"
37#include "xf86Pci.h"
38#include "mipointer.h"
39#include "micmap.h"
40#include <X11/extensions/randr.h>
41#include "fb.h"
42#include "edid.h"
43#include "xf86i2c.h"
44#include "xf86Crtc.h"
45#include "miscstruct.h"
46#include "dixstruct.h"
47#include "xf86xv.h"
48#ifndef XSERVER_LIBPCIACCESS
49#error "libpciaccess needed"
50#endif
51
52#include <pciaccess.h>
53
54#include "state_tracker/drm_driver.h"
55#include "pipe/p_context.h"
56#include "xorg_tracker.h"
57#include "xorg_winsys.h"
58
59#ifdef HAVE_LIBKMS
60#include "libkms.h"
61#endif
62
63/*
64 * Functions and symbols exported to Xorg via pointers.
65 */
66
67static Bool drv_pre_init(ScrnInfoPtr pScrn, int flags);
68static Bool drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc,
69			    char **argv);
70static Bool drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags);
71static void drv_adjust_frame(int scrnIndex, int x, int y, int flags);
72static Bool drv_enter_vt(int scrnIndex, int flags);
73static void drv_leave_vt(int scrnIndex, int flags);
74static void drv_free_screen(int scrnIndex, int flags);
75static ModeStatus drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose,
76			         int flags);
77
78typedef enum
79{
80    OPTION_SW_CURSOR,
81    OPTION_2D_ACCEL,
82    OPTION_DEBUG_FALLBACK,
83    OPTION_THROTTLE_SWAP,
84    OPTION_THROTTLE_DIRTY,
85    OPTION_3D_ACCEL
86} drv_option_enums;
87
88static const OptionInfoRec drv_options[] = {
89    {OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE},
90    {OPTION_2D_ACCEL, "2DAccel", OPTV_BOOLEAN, {0}, FALSE},
91    {OPTION_DEBUG_FALLBACK, "DebugFallback", OPTV_BOOLEAN, {0}, FALSE},
92    {OPTION_THROTTLE_SWAP, "SwapThrottling", OPTV_BOOLEAN, {0}, FALSE},
93    {OPTION_THROTTLE_DIRTY, "DirtyThrottling", OPTV_BOOLEAN, {0}, FALSE},
94    {OPTION_3D_ACCEL, "3DAccel", OPTV_BOOLEAN, {0}, FALSE},
95    {-1, NULL, OPTV_NONE, {0}, FALSE}
96};
97
98
99/*
100 * Exported Xorg driver functions to winsys
101 */
102
103const OptionInfoRec *
104xorg_tracker_available_options(int chipid, int busid)
105{
106    return drv_options;
107}
108
109void
110xorg_tracker_set_functions(ScrnInfoPtr scrn)
111{
112    scrn->PreInit = drv_pre_init;
113    scrn->ScreenInit = drv_screen_init;
114    scrn->SwitchMode = drv_switch_mode;
115    scrn->AdjustFrame = drv_adjust_frame;
116    scrn->EnterVT = drv_enter_vt;
117    scrn->LeaveVT = drv_leave_vt;
118    scrn->FreeScreen = drv_free_screen;
119    scrn->ValidMode = drv_valid_mode;
120}
121
122Bool
123xorg_tracker_have_modesetting(ScrnInfoPtr pScrn, struct pci_device *device)
124{
125    char *BusID = xalloc(64);
126    sprintf(BusID, "pci:%04x:%02x:%02x.%d",
127	    device->domain, device->bus,
128	    device->dev, device->func);
129
130    if (drmCheckModesettingSupported(BusID)) {
131	xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
132		       "Drm modesetting not supported %s\n", BusID);
133	xfree(BusID);
134	return FALSE;
135    }
136
137    xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 0,
138		   "Drm modesetting supported on %s\n", BusID);
139
140    xfree(BusID);
141    return TRUE;
142}
143
144
145/*
146 * Internal function definitions
147 */
148
149static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn);
150static Bool drv_close_screen(int scrnIndex, ScreenPtr pScreen);
151
152
153/*
154 * Internal functions
155 */
156
157static Bool
158drv_get_rec(ScrnInfoPtr pScrn)
159{
160    if (pScrn->driverPrivate)
161	return TRUE;
162
163    pScrn->driverPrivate = xnfcalloc(1, sizeof(modesettingRec));
164
165    return TRUE;
166}
167
168static void
169drv_free_rec(ScrnInfoPtr pScrn)
170{
171    if (!pScrn)
172	return;
173
174    if (!pScrn->driverPrivate)
175	return;
176
177    xfree(pScrn->driverPrivate);
178
179    pScrn->driverPrivate = NULL;
180}
181
182static void
183drv_probe_ddc(ScrnInfoPtr pScrn, int index)
184{
185    ConfiguredMonitor = NULL;
186}
187
188static Bool
189drv_crtc_resize(ScrnInfoPtr pScrn, int width, int height)
190{
191    xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
192    modesettingPtr ms = modesettingPTR(pScrn);
193    CustomizerPtr cust = ms->cust;
194    ScreenPtr pScreen = pScrn->pScreen;
195    int old_width, old_height;
196    PixmapPtr rootPixmap;
197    int i;
198
199    if (width == pScrn->virtualX && height == pScrn->virtualY)
200	return TRUE;
201
202    if (cust && cust->winsys_check_fb_size &&
203	!cust->winsys_check_fb_size(cust, width*pScrn->bitsPerPixel / 8,
204				    height)) {
205	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
206		   "Requested framebuffer size %dx%dx%d will not fit "
207		   "in display memory.\n",
208		   width, height, pScrn->bitsPerPixel);
209	return FALSE;
210    }
211
212    old_width = pScrn->virtualX;
213    old_height = pScrn->virtualY;
214    pScrn->virtualX = width;
215    pScrn->virtualY = height;
216
217    /* ms->create_front_buffer will remove the old front buffer */
218
219    rootPixmap = pScreen->GetScreenPixmap(pScreen);
220    if (!pScreen->ModifyPixmapHeader(rootPixmap, width, height, -1, -1, -1, NULL))
221	goto error_modify;
222
223    pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
224
225    if (!ms->create_front_buffer(pScrn) || !ms->bind_front_buffer(pScrn))
226	goto error_create;
227
228    /*
229     * create && bind will turn off all crtc(s) in the kernel so we need to
230     * re-enable all the crtcs again. For real HW we might want to do this
231     * before destroying the old framebuffer.
232     */
233    for (i = 0; i < xf86_config->num_crtc; i++) {
234	xf86CrtcPtr crtc = xf86_config->crtc[i];
235
236	if (!crtc->enabled)
237	    continue;
238
239	crtc->funcs->set_mode_major(crtc, &crtc->mode, crtc->rotation, crtc->x, crtc->y);
240    }
241
242    return TRUE;
243
244    /*
245     * This is the error recovery path.
246     */
247error_create:
248    if (!pScreen->ModifyPixmapHeader(rootPixmap, old_width, old_height, -1, -1, -1, NULL))
249	FatalError("failed to resize rootPixmap error path\n");
250
251    pScrn->displayWidth = rootPixmap->devKind / (rootPixmap->drawable.bitsPerPixel / 8);
252
253error_modify:
254    pScrn->virtualX = old_width;
255    pScrn->virtualY = old_height;
256
257    if (ms->create_front_buffer(pScrn) && ms->bind_front_buffer(pScrn))
258	return FALSE;
259
260    FatalError("failed to setup old framebuffer\n");
261    return FALSE;
262}
263
264static const xf86CrtcConfigFuncsRec crtc_config_funcs = {
265    .resize = drv_crtc_resize
266};
267
268static Bool
269drv_init_drm(ScrnInfoPtr pScrn)
270{
271    modesettingPtr ms = modesettingPTR(pScrn);
272
273    /* deal with server regeneration */
274    if (ms->fd < 0) {
275	char *BusID;
276
277	BusID = xalloc(64);
278	sprintf(BusID, "PCI:%d:%d:%d",
279		((ms->PciInfo->domain << 8) | ms->PciInfo->bus),
280		ms->PciInfo->dev, ms->PciInfo->func
281	    );
282
283
284	ms->fd = drmOpen(driver_descriptor.driver_name, BusID);
285	ms->isMaster = TRUE;
286	xfree(BusID);
287
288	if (ms->fd >= 0)
289	    return TRUE;
290
291	return FALSE;
292    }
293
294    return TRUE;
295}
296
297static Bool
298drv_init_resource_management(ScrnInfoPtr pScrn)
299{
300    modesettingPtr ms = modesettingPTR(pScrn);
301    /*
302    ScreenPtr pScreen = pScrn->pScreen;
303    PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
304    Bool fbAccessDisabled;
305    CARD8 *fbstart;
306     */
307
308    if (ms->screen || ms->kms)
309	return TRUE;
310
311    if (!ms->no3D)
312	ms->screen = driver_descriptor.create_screen(ms->fd);
313
314    if (ms->screen)
315	return TRUE;
316
317#ifdef HAVE_LIBKMS
318    if (!kms_create(ms->fd, &ms->kms))
319	return TRUE;
320#endif
321
322    return FALSE;
323}
324
325static void
326drv_cleanup_fences(ScrnInfoPtr pScrn)
327{
328    modesettingPtr ms = modesettingPTR(pScrn);
329    int i;
330
331    assert(ms->screen);
332
333    for (i = 0; i < XORG_NR_FENCES; i++) {
334	if (ms->fence[i]) {
335	    ms->screen->fence_finish(ms->screen, ms->fence[i], 0);
336	    ms->screen->fence_reference(ms->screen, &ms->fence[i], NULL);
337	}
338    }
339}
340
341static Bool
342drv_pre_init(ScrnInfoPtr pScrn, int flags)
343{
344    xf86CrtcConfigPtr xf86_config;
345    modesettingPtr ms;
346    rgb defaultWeight = { 0, 0, 0 };
347    EntityInfoPtr pEnt;
348    EntPtr msEnt = NULL;
349    CustomizerPtr cust;
350    Bool use3D;
351
352    if (pScrn->numEntities != 1)
353	return FALSE;
354
355    pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
356
357    if (flags & PROBE_DETECT) {
358	drv_probe_ddc(pScrn, pEnt->index);
359	return TRUE;
360    }
361
362    cust = (CustomizerPtr) pScrn->driverPrivate;
363    pScrn->driverPrivate = NULL;
364
365    /* Allocate driverPrivate */
366    if (!drv_get_rec(pScrn))
367	return FALSE;
368
369    ms = modesettingPTR(pScrn);
370    ms->pEnt = pEnt;
371    ms->cust = cust;
372
373    pScrn->displayWidth = 640;	       /* default it */
374
375    if (ms->pEnt->location.type != BUS_PCI)
376	return FALSE;
377
378    ms->PciInfo = xf86GetPciInfoForEntity(ms->pEnt->index);
379
380    /* Allocate an entity private if necessary */
381    if (xf86IsEntityShared(pScrn->entityList[0])) {
382	FatalError("Entity");
383#if 0
384	msEnt = xf86GetEntityPrivate(pScrn->entityList[0],
385				     modesettingEntityIndex)->ptr;
386	ms->entityPrivate = msEnt;
387#else
388	(void)msEnt;
389#endif
390    } else
391	ms->entityPrivate = NULL;
392
393    if (xf86IsEntityShared(pScrn->entityList[0])) {
394	if (xf86IsPrimInitDone(pScrn->entityList[0])) {
395	    /* do something */
396	} else {
397	    xf86SetPrimInitDone(pScrn->entityList[0]);
398	}
399    }
400
401    ms->fd = -1;
402    if (!drv_init_drm(pScrn))
403	return FALSE;
404
405    use3D = cust ? !cust->no_3d : TRUE;
406    ms->from_3D = xf86GetOptValBool(ms->Options, OPTION_3D_ACCEL,
407				    &use3D) ?
408	X_CONFIG : X_PROBED;
409
410    ms->no3D = !use3D;
411
412    if (!drv_init_resource_management(pScrn)) {
413	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Could not init "
414					       "Gallium3D or libKMS.");
415	return FALSE;
416    }
417
418    pScrn->monitor = pScrn->confScreen->monitor;
419    pScrn->progClock = TRUE;
420    pScrn->rgbBits = 8;
421
422    if (!xf86SetDepthBpp
423	(pScrn, 0, 0, 0,
424	 PreferConvert24to32 | SupportConvert24to32 | Support32bppFb))
425	return FALSE;
426
427    switch (pScrn->depth) {
428    case 15:
429    case 16:
430    case 24:
431	break;
432    default:
433	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
434		   "Given depth (%d) is not supported by the driver\n",
435		   pScrn->depth);
436	return FALSE;
437    }
438    xf86PrintDepthBpp(pScrn);
439
440    if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
441	return FALSE;
442    if (!xf86SetDefaultVisual(pScrn, -1))
443	return FALSE;
444
445    /* Process the options */
446    xf86CollectOptions(pScrn, NULL);
447    if (!(ms->Options = xalloc(sizeof(drv_options))))
448	return FALSE;
449    memcpy(ms->Options, drv_options, sizeof(drv_options));
450    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, ms->Options);
451
452    /* Allocate an xf86CrtcConfig */
453    xf86CrtcConfigInit(pScrn, &crtc_config_funcs);
454    xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
455
456    /* get max width and height */
457    {
458	drmModeResPtr res;
459	int max_width, max_height;
460
461	res = drmModeGetResources(ms->fd);
462	max_width = res->max_width;
463	max_height = res->max_height;
464
465	if (ms->screen) {
466	    int max;
467
468	    max = ms->screen->get_param(ms->screen,
469					PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
470	    max = 1 << (max - 1);
471	    max_width = max < max_width ? max : max_width;
472	    max_height = max < max_height ? max : max_height;
473	}
474
475	xf86CrtcSetSizeRange(pScrn, res->min_width,
476			     res->min_height, max_width, max_height);
477	xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
478		   "Min width %d, Max Width %d.\n",
479		   res->min_width, max_width);
480	xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
481		   "Min height %d, Max Height %d.\n",
482		   res->min_height, max_height);
483	drmModeFreeResources(res);
484    }
485
486
487    if (xf86ReturnOptValBool(ms->Options, OPTION_SW_CURSOR, FALSE)) {
488	ms->SWCursor = TRUE;
489    }
490
491    xorg_crtc_init(pScrn);
492    xorg_output_init(pScrn);
493
494    if (cust && cust->winsys_pre_init && !cust->winsys_pre_init(cust, ms->fd))
495	return FALSE;
496
497    if (!xf86InitialConfiguration(pScrn, TRUE)) {
498	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes.\n");
499	return FALSE;
500    }
501
502    /*
503     * If the driver can do gamma correction, it should call xf86SetGamma() here.
504     */
505    {
506	Gamma zeros = { 0.0, 0.0, 0.0 };
507
508	if (!xf86SetGamma(pScrn, zeros)) {
509	    return FALSE;
510	}
511    }
512
513    if (pScrn->modes == NULL) {
514	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No modes.\n");
515	return FALSE;
516    }
517
518    pScrn->currentMode = pScrn->modes;
519
520    /* Set display resolution */
521    xf86SetDpi(pScrn, 0, 0);
522
523    /* Load the required sub modules */
524    if (!xf86LoadSubModule(pScrn, "fb"))
525	return FALSE;
526
527    /* XXX: these aren't needed when we are using libkms */
528    if (!xf86LoadSubModule(pScrn, "exa"))
529	return FALSE;
530
531#ifdef DRI2
532    if (!xf86LoadSubModule(pScrn, "dri2"))
533	return FALSE;
534#endif
535
536    return TRUE;
537}
538
539static void drv_block_handler(int i, pointer blockData, pointer pTimeout,
540                              pointer pReadmask)
541{
542    ScreenPtr pScreen = screenInfo.screens[i];
543    modesettingPtr ms = modesettingPTR(xf86Screens[pScreen->myNum]);
544
545    pScreen->BlockHandler = ms->blockHandler;
546    pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);
547    pScreen->BlockHandler = drv_block_handler;
548
549    if (ms->ctx) {
550       int j;
551
552       ms->ctx->flush(ms->ctx, PIPE_FLUSH_RENDER_CACHE,
553		      ms->dirtyThrottling ?
554		      &ms->fence[XORG_NR_FENCES-1] :
555		      NULL);
556
557       if (ms->dirtyThrottling) {
558	   if (ms->fence[0])
559	       ms->ctx->screen->fence_finish(ms->ctx->screen,
560					     ms->fence[0], 0);
561
562	   /* The amount of rendering generated by a block handler can be
563	    * quite small.  Let us get a fair way ahead of hardware before
564	    * throttling.
565	    */
566	   for (j = 0; j < XORG_NR_FENCES - 1; j++)
567	       ms->screen->fence_reference(ms->screen,
568					   &ms->fence[j],
569					   ms->fence[j+1]);
570
571	   ms->screen->fence_reference(ms->screen,
572				       &ms->fence[XORG_NR_FENCES-1],
573				       NULL);
574       }
575    }
576
577
578#ifdef DRM_MODE_FEATURE_DIRTYFB
579    {
580	RegionPtr dirty = DamageRegion(ms->damage);
581	unsigned num_cliprects = REGION_NUM_RECTS(dirty);
582
583	if (num_cliprects) {
584	    drmModeClip *clip = alloca(num_cliprects * sizeof(drmModeClip));
585	    BoxPtr rect = REGION_RECTS(dirty);
586	    int i, ret;
587
588	    /* XXX no need for copy? */
589	    for (i = 0; i < num_cliprects; i++, rect++) {
590		clip[i].x1 = rect->x1;
591		clip[i].y1 = rect->y1;
592		clip[i].x2 = rect->x2;
593		clip[i].y2 = rect->y2;
594	    }
595
596	    /* TODO query connector property to see if this is needed */
597	    ret = drmModeDirtyFB(ms->fd, ms->fb_id, clip, num_cliprects);
598	    if (ret) {
599		debug_printf("%s: failed to send dirty (%i, %s)\n",
600			     __func__, ret, strerror(-ret));
601	    }
602
603	    DamageEmpty(ms->damage);
604	}
605    }
606#endif
607}
608
609static Bool
610drv_create_screen_resources(ScreenPtr pScreen)
611{
612    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
613    modesettingPtr ms = modesettingPTR(pScrn);
614    PixmapPtr rootPixmap;
615    Bool ret;
616
617    ms->noEvict = TRUE;
618
619    pScreen->CreateScreenResources = ms->createScreenResources;
620    ret = pScreen->CreateScreenResources(pScreen);
621    pScreen->CreateScreenResources = drv_create_screen_resources;
622
623    ms->bind_front_buffer(pScrn);
624
625    ms->noEvict = FALSE;
626
627    drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
628
629#ifdef DRM_MODE_FEATURE_DIRTYFB
630    rootPixmap = pScreen->GetScreenPixmap(pScreen);
631    ms->damage = DamageCreate(NULL, NULL, DamageReportNone, TRUE,
632                              pScreen, rootPixmap);
633
634    if (ms->damage) {
635       DamageRegister(&rootPixmap->drawable, ms->damage);
636
637       xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Damage tracking initialized\n");
638    } else {
639       xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
640                  "Failed to create screen damage record\n");
641       return FALSE;
642    }
643#else
644    (void)rootPixmap;
645#endif
646
647    return ret;
648}
649
650static Bool
651drv_set_master(ScrnInfoPtr pScrn)
652{
653    modesettingPtr ms = modesettingPTR(pScrn);
654
655    if (!ms->isMaster && drmSetMaster(ms->fd) != 0) {
656	if (errno == EINVAL) {
657	    xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
658		       "drmSetMaster failed: 2.6.29 or newer kernel required for "
659		       "multi-server DRI\n");
660	} else {
661	    xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
662		       "drmSetMaster failed: %s\n", strerror(errno));
663	}
664	return FALSE;
665    }
666
667    ms->isMaster = TRUE;
668    return TRUE;
669}
670
671
672static Bool
673drv_screen_init(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
674{
675    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
676    modesettingPtr ms = modesettingPTR(pScrn);
677    VisualPtr visual;
678    CustomizerPtr cust = ms->cust;
679    MessageType from_st;
680    MessageType from_dt;
681
682    if (!drv_set_master(pScrn))
683	return FALSE;
684
685    if (!drv_init_front_buffer_functions(pScrn)) {
686	FatalError("Could not init front buffer manager");
687	return FALSE;
688    }
689
690    pScrn->pScreen = pScreen;
691
692    /* HW dependent - FIXME */
693    pScrn->displayWidth = pScrn->virtualX;
694
695    miClearVisualTypes();
696
697    if (!miSetVisualTypes(pScrn->depth,
698			  miGetDefaultVisualMask(pScrn->depth),
699			  pScrn->rgbBits, pScrn->defaultVisual))
700	return FALSE;
701
702    if (!miSetPixmapDepths())
703	return FALSE;
704
705    pScrn->memPhysBase = 0;
706    pScrn->fbOffset = 0;
707
708    if (!fbScreenInit(pScreen, NULL,
709		      pScrn->virtualX, pScrn->virtualY,
710		      pScrn->xDpi, pScrn->yDpi,
711		      pScrn->displayWidth, pScrn->bitsPerPixel))
712	return FALSE;
713
714    if (pScrn->bitsPerPixel > 8) {
715	/* Fixup RGB ordering */
716	visual = pScreen->visuals + pScreen->numVisuals;
717	while (--visual >= pScreen->visuals) {
718	    if ((visual->class | DynamicClass) == DirectColor) {
719		visual->offsetRed = pScrn->offset.red;
720		visual->offsetGreen = pScrn->offset.green;
721		visual->offsetBlue = pScrn->offset.blue;
722		visual->redMask = pScrn->mask.red;
723		visual->greenMask = pScrn->mask.green;
724		visual->blueMask = pScrn->mask.blue;
725	    }
726	}
727    }
728
729    fbPictureInit(pScreen, NULL, 0);
730
731    ms->blockHandler = pScreen->BlockHandler;
732    pScreen->BlockHandler = drv_block_handler;
733    ms->createScreenResources = pScreen->CreateScreenResources;
734    pScreen->CreateScreenResources = drv_create_screen_resources;
735
736    xf86SetBlackWhitePixels(pScreen);
737
738    ms->accelerate_2d = xf86ReturnOptValBool(ms->Options, OPTION_2D_ACCEL, FALSE);
739    ms->debug_fallback = xf86ReturnOptValBool(ms->Options, OPTION_DEBUG_FALLBACK, ms->accelerate_2d);
740
741    if (cust && cust->winsys_screen_init)
742	cust->winsys_screen_init(cust);
743
744    ms->swapThrottling = cust ?  cust->swap_throttling : TRUE;
745    from_st = xf86GetOptValBool(ms->Options, OPTION_THROTTLE_SWAP,
746				&ms->swapThrottling) ?
747	X_CONFIG : X_DEFAULT;
748
749    ms->dirtyThrottling = cust ?  cust->dirty_throttling : TRUE;
750    from_dt = xf86GetOptValBool(ms->Options, OPTION_THROTTLE_DIRTY,
751				&ms->dirtyThrottling) ?
752	X_CONFIG : X_DEFAULT;
753
754    if (ms->screen) {
755	ms->exa = xorg_exa_init(pScrn, ms->accelerate_2d);
756
757	xorg_xv_init(pScreen);
758#ifdef DRI2
759	xorg_dri2_init(pScreen);
760#endif
761    }
762
763    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
764    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "# Usefull debugging info follows #\n");
765    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
766    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Using %s backend\n",
767	       ms->screen ? "Gallium3D" : "libkms");
768    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "2D Acceleration is %s\n",
769	       ms->screen && ms->accelerate_2d ? "enabled" : "disabled");
770    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Fallback debugging is %s\n",
771	       ms->debug_fallback ? "enabled" : "disabled");
772#ifdef DRI2
773    xf86DrvMsg(pScrn->scrnIndex, ms->from_3D, "3D Acceleration is %s\n",
774	       ms->screen ? "enabled" : "disabled");
775#else
776    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "3D Acceleration is disabled\n");
777#endif
778    xf86DrvMsg(pScrn->scrnIndex, from_st, "Swap Throttling is %s.\n",
779	       ms->swapThrottling ? "enabled" : "disabled");
780    xf86DrvMsg(pScrn->scrnIndex, from_dt, "Dirty Throttling is %s.\n",
781	       ms->dirtyThrottling ? "enabled" : "disabled");
782
783    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "##################################\n");
784
785    miInitializeBackingStore(pScreen);
786    xf86SetBackingStore(pScreen);
787    xf86SetSilkenMouse(pScreen);
788    miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
789
790    /* Need to extend HWcursor support to handle mask interleave */
791    if (!ms->SWCursor)
792	xf86_cursors_init(pScreen, 64, 64,
793			  HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 |
794			  HARDWARE_CURSOR_ARGB);
795
796    /* Must force it before EnterVT, so we are in control of VT and
797     * later memory should be bound when allocating, e.g rotate_mem */
798    pScrn->vtSema = TRUE;
799
800    pScreen->SaveScreen = xf86SaveScreen;
801    ms->CloseScreen = pScreen->CloseScreen;
802    pScreen->CloseScreen = drv_close_screen;
803
804    if (!xf86CrtcScreenInit(pScreen))
805	return FALSE;
806
807    if (!miCreateDefColormap(pScreen))
808	return FALSE;
809
810    xf86DPMSInit(pScreen, xf86DPMSSet, 0);
811
812    if (serverGeneration == 1)
813	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
814
815    return drv_enter_vt(scrnIndex, 1);
816}
817
818static void
819drv_adjust_frame(int scrnIndex, int x, int y, int flags)
820{
821    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
822    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
823    xf86OutputPtr output = config->output[config->compat_output];
824    xf86CrtcPtr crtc = output->crtc;
825
826    if (crtc && crtc->enabled) {
827	crtc->funcs->set_mode_major(crtc, pScrn->currentMode,
828				    RR_Rotate_0, x, y);
829	crtc->x = output->initial_x + x;
830	crtc->y = output->initial_y + y;
831    }
832}
833
834static void
835drv_free_screen(int scrnIndex, int flags)
836{
837    drv_free_rec(xf86Screens[scrnIndex]);
838}
839
840static void
841drv_leave_vt(int scrnIndex, int flags)
842{
843    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
844    modesettingPtr ms = modesettingPTR(pScrn);
845    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
846    CustomizerPtr cust = ms->cust;
847    int o;
848
849    if (cust && cust->winsys_leave_vt)
850	cust->winsys_leave_vt(cust);
851
852    for (o = 0; o < config->num_crtc; o++) {
853	xf86CrtcPtr crtc = config->crtc[o];
854
855	xorg_crtc_cursor_destroy(crtc);
856
857	if (crtc->rotatedPixmap || crtc->rotatedData) {
858	    crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
859					crtc->rotatedData);
860	    crtc->rotatedPixmap = NULL;
861	    crtc->rotatedData = NULL;
862	}
863    }
864
865    drmModeRmFB(ms->fd, ms->fb_id);
866    ms->fb_id = -1;
867
868    /* idle hardware */
869    if (!ms->kms)
870	drv_cleanup_fences(pScrn);
871
872    if (drmDropMaster(ms->fd))
873	xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
874		   "drmDropMaster failed: %s\n", strerror(errno));
875
876    ms->isMaster = FALSE;
877    pScrn->vtSema = FALSE;
878}
879
880/*
881 * This gets called when gaining control of the VT, and from ScreenInit().
882 */
883static Bool
884drv_enter_vt(int scrnIndex, int flags)
885{
886    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
887    modesettingPtr ms = modesettingPTR(pScrn);
888    CustomizerPtr cust = ms->cust;
889
890    if (!drv_set_master(pScrn))
891	return FALSE;
892
893    if (!ms->create_front_buffer(pScrn))
894	return FALSE;
895
896    if (!flags && !ms->bind_front_buffer(pScrn))
897	return FALSE;
898
899    if (!xf86SetDesiredModes(pScrn))
900	return FALSE;
901
902    if (cust && cust->winsys_enter_vt)
903	cust->winsys_enter_vt(cust);
904
905    return TRUE;
906}
907
908static Bool
909drv_switch_mode(int scrnIndex, DisplayModePtr mode, int flags)
910{
911    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
912
913    return xf86SetSingleMode(pScrn, mode, RR_Rotate_0);
914}
915
916static Bool
917drv_close_screen(int scrnIndex, ScreenPtr pScreen)
918{
919    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
920    modesettingPtr ms = modesettingPTR(pScrn);
921    CustomizerPtr cust = ms->cust;
922
923    if (ms->cursor) {
924       FreeCursor(ms->cursor, None);
925       ms->cursor = NULL;
926    }
927
928    if (cust && cust->winsys_screen_close)
929	cust->winsys_screen_close(cust);
930
931#ifdef DRI2
932    if (ms->screen)
933	xorg_dri2_close(pScreen);
934#endif
935
936    pScreen->BlockHandler = ms->blockHandler;
937    pScreen->CreateScreenResources = ms->createScreenResources;
938
939#ifdef DRM_MODE_FEATURE_DIRTYFB
940    if (ms->damage) {
941	DamageUnregister(&pScreen->GetScreenPixmap(pScreen)->drawable, ms->damage);
942	DamageDestroy(ms->damage);
943	ms->damage = NULL;
944    }
945#endif
946
947    drmModeRmFB(ms->fd, ms->fb_id);
948    ms->destroy_front_buffer(pScrn);
949
950    if (ms->exa)
951	xorg_exa_close(pScrn);
952    ms->exa = NULL;
953
954    /* calls drop master make sure we don't talk to 3D HW after that */
955    if (pScrn->vtSema) {
956	drv_leave_vt(scrnIndex, 0);
957    }
958
959    pScrn->vtSema = FALSE;
960    pScreen->CloseScreen = ms->CloseScreen;
961
962    return (*pScreen->CloseScreen) (scrnIndex, pScreen);
963}
964
965static ModeStatus
966drv_valid_mode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
967{
968    return MODE_OK;
969}
970
971
972/*
973 * Front buffer backing store functions.
974 */
975
976static Bool
977drv_destroy_front_buffer_ga3d(ScrnInfoPtr pScrn)
978{
979    modesettingPtr ms = modesettingPTR(pScrn);
980
981    if (!ms->root_texture)
982	return TRUE;
983
984    if (ms->fb_id != -1) {
985	drmModeRmFB(ms->fd, ms->fb_id);
986	ms->fb_id = -1;
987    }
988
989    pipe_resource_reference(&ms->root_texture, NULL);
990    return TRUE;
991}
992
993static Bool
994drv_create_front_buffer_ga3d(ScrnInfoPtr pScrn)
995{
996    modesettingPtr ms = modesettingPTR(pScrn);
997    struct pipe_resource *tex;
998    struct winsys_handle whandle;
999    unsigned fb_id;
1000    int ret;
1001
1002    ms->noEvict = TRUE;
1003
1004    tex = xorg_exa_create_root_texture(pScrn, pScrn->virtualX, pScrn->virtualY,
1005				       pScrn->depth, pScrn->bitsPerPixel);
1006
1007    if (!tex)
1008	return FALSE;
1009
1010    memset(&whandle, 0, sizeof(whandle));
1011    whandle.type = DRM_API_HANDLE_TYPE_KMS;
1012
1013    if (!ms->screen->resource_get_handle(ms->screen, tex, &whandle))
1014	goto err_destroy;
1015
1016    ret = drmModeAddFB(ms->fd,
1017		       pScrn->virtualX,
1018		       pScrn->virtualY,
1019		       pScrn->depth,
1020		       pScrn->bitsPerPixel,
1021		       whandle.stride,
1022		       whandle.handle,
1023		       &fb_id);
1024    if (ret) {
1025	debug_printf("%s: failed to create framebuffer (%i, %s)\n",
1026		     __func__, ret, strerror(-ret));
1027	goto err_destroy;
1028    }
1029
1030    if (!drv_destroy_front_buffer_ga3d(pScrn))
1031	FatalError("%s: failed to take down old framebuffer\n", __func__);
1032
1033    pScrn->frameX0 = 0;
1034    pScrn->frameY0 = 0;
1035    drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
1036
1037    pipe_resource_reference(&ms->root_texture, tex);
1038    pipe_resource_reference(&tex, NULL);
1039    ms->fb_id = fb_id;
1040
1041    return TRUE;
1042
1043err_destroy:
1044    pipe_resource_reference(&tex, NULL);
1045    return FALSE;
1046}
1047
1048static Bool
1049drv_bind_front_buffer_ga3d(ScrnInfoPtr pScrn)
1050{
1051    modesettingPtr ms = modesettingPTR(pScrn);
1052    ScreenPtr pScreen = pScrn->pScreen;
1053    PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1054    struct pipe_resource *check;
1055
1056    xorg_exa_set_displayed_usage(rootPixmap);
1057    xorg_exa_set_shared_usage(rootPixmap);
1058    xorg_exa_set_texture(rootPixmap, ms->root_texture);
1059    if (!pScreen->ModifyPixmapHeader(rootPixmap, -1, -1, -1, -1, -1, NULL))
1060	FatalError("Couldn't adjust screen pixmap\n");
1061
1062    check = xorg_exa_get_texture(rootPixmap);
1063    if (ms->root_texture != check)
1064	FatalError("Created new root texture\n");
1065
1066    pipe_resource_reference(&check, NULL);
1067    return TRUE;
1068}
1069
1070#ifdef HAVE_LIBKMS
1071static Bool
1072drv_destroy_front_buffer_kms(ScrnInfoPtr pScrn)
1073{
1074    modesettingPtr ms = modesettingPTR(pScrn);
1075    ScreenPtr pScreen = pScrn->pScreen;
1076    PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1077
1078    /* XXX Do something with the rootPixmap.
1079     * This currently works fine but if we are getting crashes in
1080     * the fb functions after VT switches maybe look more into it.
1081     */
1082    (void)rootPixmap;
1083
1084    if (!ms->root_bo)
1085	return TRUE;
1086
1087    if (ms->fb_id != -1) {
1088	drmModeRmFB(ms->fd, ms->fb_id);
1089	ms->fb_id = -1;
1090    }
1091
1092    kms_bo_unmap(ms->root_bo);
1093    kms_bo_destroy(&ms->root_bo);
1094    return TRUE;
1095}
1096
1097static Bool
1098drv_create_front_buffer_kms(ScrnInfoPtr pScrn)
1099{
1100    modesettingPtr ms = modesettingPTR(pScrn);
1101    unsigned handle, stride;
1102    struct kms_bo *bo;
1103    unsigned attr[8];
1104    unsigned fb_id;
1105    int ret;
1106
1107    attr[0] = KMS_BO_TYPE;
1108#ifdef KMS_BO_TYPE_SCANOUT_X8R8G8B8
1109    attr[1] = KMS_BO_TYPE_SCANOUT_X8R8G8B8;
1110#else
1111    attr[1] = KMS_BO_TYPE_SCANOUT;
1112#endif
1113    attr[2] = KMS_WIDTH;
1114    attr[3] = pScrn->virtualX;
1115    attr[4] = KMS_HEIGHT;
1116    attr[5] = pScrn->virtualY;
1117    attr[6] = 0;
1118
1119    if (kms_bo_create(ms->kms, attr, &bo))
1120	return FALSE;
1121
1122    if (kms_bo_get_prop(bo, KMS_PITCH, &stride))
1123	goto err_destroy;
1124
1125    if (kms_bo_get_prop(bo, KMS_HANDLE, &handle))
1126	goto err_destroy;
1127
1128    ret = drmModeAddFB(ms->fd,
1129		       pScrn->virtualX,
1130		       pScrn->virtualY,
1131		       pScrn->depth,
1132		       pScrn->bitsPerPixel,
1133		       stride,
1134		       handle,
1135		       &fb_id);
1136    if (ret) {
1137	debug_printf("%s: failed to create framebuffer (%i, %s)",
1138		     __func__, ret, strerror(-ret));
1139	goto err_destroy;
1140    }
1141
1142    if (!drv_destroy_front_buffer_kms(pScrn))
1143	FatalError("%s: could not takedown old bo", __func__);
1144
1145    pScrn->frameX0 = 0;
1146    pScrn->frameY0 = 0;
1147    drv_adjust_frame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
1148    ms->root_bo = bo;
1149    ms->fb_id = fb_id;
1150
1151    return TRUE;
1152
1153err_destroy:
1154    kms_bo_destroy(&bo);
1155    return FALSE;
1156}
1157
1158static Bool
1159drv_bind_front_buffer_kms(ScrnInfoPtr pScrn)
1160{
1161    modesettingPtr ms = modesettingPTR(pScrn);
1162    ScreenPtr pScreen = pScrn->pScreen;
1163    PixmapPtr rootPixmap = pScreen->GetScreenPixmap(pScreen);
1164    unsigned stride;
1165    void *ptr;
1166
1167    if (kms_bo_get_prop(ms->root_bo, KMS_PITCH, &stride))
1168	return FALSE;
1169
1170    if (kms_bo_map(ms->root_bo, &ptr))
1171	goto err_destroy;
1172
1173    pScreen->ModifyPixmapHeader(rootPixmap,
1174				pScrn->virtualX,
1175				pScrn->virtualY,
1176				pScreen->rootDepth,
1177				pScrn->bitsPerPixel,
1178				stride,
1179				ptr);
1180
1181    /* This a hack to work around EnableDisableFBAccess setting the pointer
1182     * the real fix would be to replace pScrn->EnableDisableFBAccess hook
1183     * and set the rootPixmap->devPrivate.ptr to something valid before that.
1184     *
1185     * But in its infinit visdome something uses either this some times before
1186     * that, so our hook doesn't get called before the crash happens.
1187     */
1188    pScrn->pixmapPrivate.ptr = ptr;
1189
1190    return TRUE;
1191
1192err_destroy:
1193    kms_bo_destroy(&ms->root_bo);
1194    return FALSE;
1195}
1196#endif /* HAVE_LIBKMS */
1197
1198static Bool drv_init_front_buffer_functions(ScrnInfoPtr pScrn)
1199{
1200    modesettingPtr ms = modesettingPTR(pScrn);
1201    if (ms->screen) {
1202	ms->destroy_front_buffer = drv_destroy_front_buffer_ga3d;
1203	ms->create_front_buffer = drv_create_front_buffer_ga3d;
1204	ms->bind_front_buffer = drv_bind_front_buffer_ga3d;
1205#ifdef HAVE_LIBKMS
1206    } else if (ms->kms) {
1207	ms->destroy_front_buffer = drv_destroy_front_buffer_kms;
1208	ms->create_front_buffer = drv_create_front_buffer_kms;
1209	ms->bind_front_buffer = drv_bind_front_buffer_kms;
1210#endif
1211    } else
1212	return FALSE;
1213
1214    return TRUE;
1215}
1216
1217CustomizerPtr xorg_customizer(ScrnInfoPtr pScrn)
1218{
1219    return modesettingPTR(pScrn)->cust;
1220}
1221
1222Bool xorg_has_gallium(ScrnInfoPtr pScrn)
1223{
1224    return modesettingPTR(pScrn)->screen != NULL;
1225}
1226
1227/* vim: set sw=4 ts=8 sts=4: */
1228