1 /*
2 * Copyright © 2007 David Airlie
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * David Airlie
25 */
26
27 #include <linux/module.h>
28 #include <linux/kernel.h>
29 #include <linux/errno.h>
30 #include <linux/string.h>
31 #include <linux/mm.h>
32 #include <linux/tty.h>
33 #include <linux/sysrq.h>
34 #include <linux/delay.h>
35 #include <linux/init.h>
36 #include <linux/screen_info.h>
37 #include <linux/vga_switcheroo.h>
38 #include <linux/console.h>
39
40 #include <drm/drm_crtc.h>
41 #include <drm/drm_crtc_helper.h>
42 #include <drm/drm_probe_helper.h>
43 #include <drm/drm_fb_helper.h>
44 #include <drm/drm_fourcc.h>
45 #include <drm/drm_atomic.h>
46
47 #include "nouveau_drv.h"
48 #include "nouveau_gem.h"
49 #include "nouveau_bo.h"
50 #include "nouveau_fbcon.h"
51 #include "nouveau_chan.h"
52 #include "nouveau_vmm.h"
53
54 #include "nouveau_crtc.h"
55
56 MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration");
57 int nouveau_nofbaccel = 0;
58 module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);
59
60 MODULE_PARM_DESC(fbcon_bpp, "fbcon bits-per-pixel (default: auto)");
61 static int nouveau_fbcon_bpp;
62 module_param_named(fbcon_bpp, nouveau_fbcon_bpp, int, 0400);
63
64 static void
nouveau_fbcon_fillrect(struct fb_info * info,const struct fb_fillrect * rect)65 nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
66 {
67 struct nouveau_fbdev *fbcon = info->par;
68 struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev);
69 struct nvif_device *device = &drm->client.device;
70 int ret;
71
72 if (info->state != FBINFO_STATE_RUNNING)
73 return;
74
75 ret = -ENODEV;
76 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
77 mutex_trylock(&drm->client.mutex)) {
78 if (device->info.family < NV_DEVICE_INFO_V0_TESLA)
79 ret = nv04_fbcon_fillrect(info, rect);
80 else
81 if (device->info.family < NV_DEVICE_INFO_V0_FERMI)
82 ret = nv50_fbcon_fillrect(info, rect);
83 else
84 ret = nvc0_fbcon_fillrect(info, rect);
85 mutex_unlock(&drm->client.mutex);
86 }
87
88 if (ret == 0)
89 return;
90
91 if (ret != -ENODEV)
92 nouveau_fbcon_gpu_lockup(info);
93 drm_fb_helper_cfb_fillrect(info, rect);
94 }
95
96 static void
nouveau_fbcon_copyarea(struct fb_info * info,const struct fb_copyarea * image)97 nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
98 {
99 struct nouveau_fbdev *fbcon = info->par;
100 struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev);
101 struct nvif_device *device = &drm->client.device;
102 int ret;
103
104 if (info->state != FBINFO_STATE_RUNNING)
105 return;
106
107 ret = -ENODEV;
108 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
109 mutex_trylock(&drm->client.mutex)) {
110 if (device->info.family < NV_DEVICE_INFO_V0_TESLA)
111 ret = nv04_fbcon_copyarea(info, image);
112 else
113 if (device->info.family < NV_DEVICE_INFO_V0_FERMI)
114 ret = nv50_fbcon_copyarea(info, image);
115 else
116 ret = nvc0_fbcon_copyarea(info, image);
117 mutex_unlock(&drm->client.mutex);
118 }
119
120 if (ret == 0)
121 return;
122
123 if (ret != -ENODEV)
124 nouveau_fbcon_gpu_lockup(info);
125 drm_fb_helper_cfb_copyarea(info, image);
126 }
127
128 static void
nouveau_fbcon_imageblit(struct fb_info * info,const struct fb_image * image)129 nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
130 {
131 struct nouveau_fbdev *fbcon = info->par;
132 struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev);
133 struct nvif_device *device = &drm->client.device;
134 int ret;
135
136 if (info->state != FBINFO_STATE_RUNNING)
137 return;
138
139 ret = -ENODEV;
140 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
141 mutex_trylock(&drm->client.mutex)) {
142 if (device->info.family < NV_DEVICE_INFO_V0_TESLA)
143 ret = nv04_fbcon_imageblit(info, image);
144 else
145 if (device->info.family < NV_DEVICE_INFO_V0_FERMI)
146 ret = nv50_fbcon_imageblit(info, image);
147 else
148 ret = nvc0_fbcon_imageblit(info, image);
149 mutex_unlock(&drm->client.mutex);
150 }
151
152 if (ret == 0)
153 return;
154
155 if (ret != -ENODEV)
156 nouveau_fbcon_gpu_lockup(info);
157 drm_fb_helper_cfb_imageblit(info, image);
158 }
159
160 static int
nouveau_fbcon_sync(struct fb_info * info)161 nouveau_fbcon_sync(struct fb_info *info)
162 {
163 struct nouveau_fbdev *fbcon = info->par;
164 struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev);
165 struct nouveau_channel *chan = drm->channel;
166 int ret;
167
168 if (!chan || !chan->accel_done || in_interrupt() ||
169 info->state != FBINFO_STATE_RUNNING ||
170 info->flags & FBINFO_HWACCEL_DISABLED)
171 return 0;
172
173 if (!mutex_trylock(&drm->client.mutex))
174 return 0;
175
176 ret = nouveau_channel_idle(chan);
177 mutex_unlock(&drm->client.mutex);
178 if (ret) {
179 nouveau_fbcon_gpu_lockup(info);
180 return 0;
181 }
182
183 chan->accel_done = false;
184 return 0;
185 }
186
187 static int
nouveau_fbcon_open(struct fb_info * info,int user)188 nouveau_fbcon_open(struct fb_info *info, int user)
189 {
190 struct nouveau_fbdev *fbcon = info->par;
191 struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev);
192 int ret = pm_runtime_get_sync(drm->dev->dev);
193 if (ret < 0 && ret != -EACCES) {
194 pm_runtime_put(drm->dev->dev);
195 return ret;
196 }
197 return 0;
198 }
199
200 static int
nouveau_fbcon_release(struct fb_info * info,int user)201 nouveau_fbcon_release(struct fb_info *info, int user)
202 {
203 struct nouveau_fbdev *fbcon = info->par;
204 struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev);
205 pm_runtime_put(drm->dev->dev);
206 return 0;
207 }
208
209 static const struct fb_ops nouveau_fbcon_ops = {
210 .owner = THIS_MODULE,
211 DRM_FB_HELPER_DEFAULT_OPS,
212 .fb_open = nouveau_fbcon_open,
213 .fb_release = nouveau_fbcon_release,
214 .fb_fillrect = nouveau_fbcon_fillrect,
215 .fb_copyarea = nouveau_fbcon_copyarea,
216 .fb_imageblit = nouveau_fbcon_imageblit,
217 .fb_sync = nouveau_fbcon_sync,
218 };
219
220 static const struct fb_ops nouveau_fbcon_sw_ops = {
221 .owner = THIS_MODULE,
222 DRM_FB_HELPER_DEFAULT_OPS,
223 .fb_open = nouveau_fbcon_open,
224 .fb_release = nouveau_fbcon_release,
225 .fb_fillrect = drm_fb_helper_cfb_fillrect,
226 .fb_copyarea = drm_fb_helper_cfb_copyarea,
227 .fb_imageblit = drm_fb_helper_cfb_imageblit,
228 };
229
230 void
nouveau_fbcon_accel_save_disable(struct drm_device * dev)231 nouveau_fbcon_accel_save_disable(struct drm_device *dev)
232 {
233 struct nouveau_drm *drm = nouveau_drm(dev);
234 if (drm->fbcon && drm->fbcon->helper.fbdev) {
235 drm->fbcon->saved_flags = drm->fbcon->helper.fbdev->flags;
236 drm->fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
237 }
238 }
239
240 void
nouveau_fbcon_accel_restore(struct drm_device * dev)241 nouveau_fbcon_accel_restore(struct drm_device *dev)
242 {
243 struct nouveau_drm *drm = nouveau_drm(dev);
244 if (drm->fbcon && drm->fbcon->helper.fbdev) {
245 drm->fbcon->helper.fbdev->flags = drm->fbcon->saved_flags;
246 }
247 }
248
249 static void
nouveau_fbcon_accel_fini(struct drm_device * dev)250 nouveau_fbcon_accel_fini(struct drm_device *dev)
251 {
252 struct nouveau_drm *drm = nouveau_drm(dev);
253 struct nouveau_fbdev *fbcon = drm->fbcon;
254 if (fbcon && drm->channel) {
255 console_lock();
256 if (fbcon->helper.fbdev)
257 fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
258 console_unlock();
259 nouveau_channel_idle(drm->channel);
260 nvif_object_dtor(&fbcon->twod);
261 nvif_object_dtor(&fbcon->blit);
262 nvif_object_dtor(&fbcon->gdi);
263 nvif_object_dtor(&fbcon->patt);
264 nvif_object_dtor(&fbcon->rop);
265 nvif_object_dtor(&fbcon->clip);
266 nvif_object_dtor(&fbcon->surf2d);
267 }
268 }
269
270 static void
nouveau_fbcon_accel_init(struct drm_device * dev)271 nouveau_fbcon_accel_init(struct drm_device *dev)
272 {
273 struct nouveau_drm *drm = nouveau_drm(dev);
274 struct nouveau_fbdev *fbcon = drm->fbcon;
275 struct fb_info *info = fbcon->helper.fbdev;
276 int ret;
277
278 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA)
279 ret = nv04_fbcon_accel_init(info);
280 else
281 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
282 ret = nv50_fbcon_accel_init(info);
283 else
284 ret = nvc0_fbcon_accel_init(info);
285
286 if (ret == 0)
287 info->fbops = &nouveau_fbcon_ops;
288 }
289
290 static void
nouveau_fbcon_zfill(struct drm_device * dev,struct nouveau_fbdev * fbcon)291 nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *fbcon)
292 {
293 struct fb_info *info = fbcon->helper.fbdev;
294 struct fb_fillrect rect;
295
296 /* Clear the entire fbcon. The drm will program every connector
297 * with it's preferred mode. If the sizes differ, one display will
298 * quite likely have garbage around the console.
299 */
300 rect.dx = rect.dy = 0;
301 rect.width = info->var.xres_virtual;
302 rect.height = info->var.yres_virtual;
303 rect.color = 0;
304 rect.rop = ROP_COPY;
305 info->fbops->fb_fillrect(info, &rect);
306 }
307
308 static int
nouveau_fbcon_create(struct drm_fb_helper * helper,struct drm_fb_helper_surface_size * sizes)309 nouveau_fbcon_create(struct drm_fb_helper *helper,
310 struct drm_fb_helper_surface_size *sizes)
311 {
312 struct nouveau_fbdev *fbcon =
313 container_of(helper, struct nouveau_fbdev, helper);
314 struct drm_device *dev = fbcon->helper.dev;
315 struct nouveau_drm *drm = nouveau_drm(dev);
316 struct nvif_device *device = &drm->client.device;
317 struct fb_info *info;
318 struct drm_framebuffer *fb;
319 struct nouveau_channel *chan;
320 struct nouveau_bo *nvbo;
321 struct drm_mode_fb_cmd2 mode_cmd = {};
322 int ret;
323
324 mode_cmd.width = sizes->surface_width;
325 mode_cmd.height = sizes->surface_height;
326
327 mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
328 mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
329
330 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
331 sizes->surface_depth);
332
333 ret = nouveau_gem_new(&drm->client, mode_cmd.pitches[0] *
334 mode_cmd.height, 0, NOUVEAU_GEM_DOMAIN_VRAM,
335 0, 0x0000, &nvbo);
336 if (ret) {
337 NV_ERROR(drm, "failed to allocate framebuffer\n");
338 goto out;
339 }
340
341 ret = nouveau_framebuffer_new(dev, &mode_cmd, &nvbo->bo.base, &fb);
342 if (ret)
343 goto out_unref;
344
345 ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, false);
346 if (ret) {
347 NV_ERROR(drm, "failed to pin fb: %d\n", ret);
348 goto out_unref;
349 }
350
351 ret = nouveau_bo_map(nvbo);
352 if (ret) {
353 NV_ERROR(drm, "failed to map fb: %d\n", ret);
354 goto out_unpin;
355 }
356
357 chan = nouveau_nofbaccel ? NULL : drm->channel;
358 if (chan && device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
359 ret = nouveau_vma_new(nvbo, chan->vmm, &fbcon->vma);
360 if (ret) {
361 NV_ERROR(drm, "failed to map fb into chan: %d\n", ret);
362 chan = NULL;
363 }
364 }
365
366 info = drm_fb_helper_alloc_fbi(helper);
367 if (IS_ERR(info)) {
368 ret = PTR_ERR(info);
369 goto out_unlock;
370 }
371
372 /* setup helper */
373 fbcon->helper.fb = fb;
374
375 if (!chan)
376 info->flags = FBINFO_HWACCEL_DISABLED;
377 else
378 info->flags = FBINFO_HWACCEL_COPYAREA |
379 FBINFO_HWACCEL_FILLRECT |
380 FBINFO_HWACCEL_IMAGEBLIT;
381 info->fbops = &nouveau_fbcon_sw_ops;
382 info->fix.smem_start = nvbo->bo.resource->bus.offset;
383 info->fix.smem_len = nvbo->bo.base.size;
384
385 info->screen_base = nvbo_kmap_obj_iovirtual(nvbo);
386 info->screen_size = nvbo->bo.base.size;
387
388 drm_fb_helper_fill_info(info, &fbcon->helper, sizes);
389
390 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
391
392 if (chan)
393 nouveau_fbcon_accel_init(dev);
394 nouveau_fbcon_zfill(dev, fbcon);
395
396 /* To allow resizeing without swapping buffers */
397 NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
398 fb->width, fb->height, nvbo->offset, nvbo);
399
400 if (dev_is_pci(dev->dev))
401 vga_switcheroo_client_fb_set(to_pci_dev(dev->dev), info);
402
403 return 0;
404
405 out_unlock:
406 if (chan)
407 nouveau_vma_del(&fbcon->vma);
408 nouveau_bo_unmap(nvbo);
409 out_unpin:
410 nouveau_bo_unpin(nvbo);
411 out_unref:
412 nouveau_bo_ref(NULL, &nvbo);
413 out:
414 return ret;
415 }
416
417 static int
nouveau_fbcon_destroy(struct drm_device * dev,struct nouveau_fbdev * fbcon)418 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon)
419 {
420 struct drm_framebuffer *fb = fbcon->helper.fb;
421 struct nouveau_bo *nvbo;
422
423 drm_fb_helper_unregister_fbi(&fbcon->helper);
424 drm_fb_helper_fini(&fbcon->helper);
425
426 if (fb && fb->obj[0]) {
427 nvbo = nouveau_gem_object(fb->obj[0]);
428 nouveau_vma_del(&fbcon->vma);
429 nouveau_bo_unmap(nvbo);
430 nouveau_bo_unpin(nvbo);
431 drm_framebuffer_put(fb);
432 }
433
434 return 0;
435 }
436
nouveau_fbcon_gpu_lockup(struct fb_info * info)437 void nouveau_fbcon_gpu_lockup(struct fb_info *info)
438 {
439 struct nouveau_fbdev *fbcon = info->par;
440 struct nouveau_drm *drm = nouveau_drm(fbcon->helper.dev);
441
442 NV_ERROR(drm, "GPU lockup - switching to software fbcon\n");
443 info->flags |= FBINFO_HWACCEL_DISABLED;
444 }
445
446 static const struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
447 .fb_probe = nouveau_fbcon_create,
448 };
449
450 static void
nouveau_fbcon_set_suspend_work(struct work_struct * work)451 nouveau_fbcon_set_suspend_work(struct work_struct *work)
452 {
453 struct nouveau_drm *drm = container_of(work, typeof(*drm), fbcon_work);
454 int state = READ_ONCE(drm->fbcon_new_state);
455
456 if (state == FBINFO_STATE_RUNNING)
457 pm_runtime_get_sync(drm->dev->dev);
458
459 console_lock();
460 if (state == FBINFO_STATE_RUNNING)
461 nouveau_fbcon_accel_restore(drm->dev);
462 drm_fb_helper_set_suspend(&drm->fbcon->helper, state);
463 if (state != FBINFO_STATE_RUNNING)
464 nouveau_fbcon_accel_save_disable(drm->dev);
465 console_unlock();
466
467 if (state == FBINFO_STATE_RUNNING) {
468 nouveau_fbcon_hotplug_resume(drm->fbcon);
469 pm_runtime_mark_last_busy(drm->dev->dev);
470 pm_runtime_put_autosuspend(drm->dev->dev);
471 }
472 }
473
474 void
nouveau_fbcon_set_suspend(struct drm_device * dev,int state)475 nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
476 {
477 struct nouveau_drm *drm = nouveau_drm(dev);
478
479 if (!drm->fbcon)
480 return;
481
482 drm->fbcon_new_state = state;
483 /* Since runtime resume can happen as a result of a sysfs operation,
484 * it's possible we already have the console locked. So handle fbcon
485 * init/deinit from a seperate work thread
486 */
487 schedule_work(&drm->fbcon_work);
488 }
489
490 void
nouveau_fbcon_output_poll_changed(struct drm_device * dev)491 nouveau_fbcon_output_poll_changed(struct drm_device *dev)
492 {
493 struct nouveau_drm *drm = nouveau_drm(dev);
494 struct nouveau_fbdev *fbcon = drm->fbcon;
495 int ret;
496
497 if (!fbcon)
498 return;
499
500 mutex_lock(&fbcon->hotplug_lock);
501
502 ret = pm_runtime_get(dev->dev);
503 if (ret == 1 || ret == -EACCES) {
504 drm_fb_helper_hotplug_event(&fbcon->helper);
505
506 pm_runtime_mark_last_busy(dev->dev);
507 pm_runtime_put_autosuspend(dev->dev);
508 } else if (ret == 0) {
509 /* If the GPU was already in the process of suspending before
510 * this event happened, then we can't block here as we'll
511 * deadlock the runtime pmops since they wait for us to
512 * finish. So, just defer this event for when we runtime
513 * resume again. It will be handled by fbcon_work.
514 */
515 NV_DEBUG(drm, "fbcon HPD event deferred until runtime resume\n");
516 fbcon->hotplug_waiting = true;
517 pm_runtime_put_noidle(drm->dev->dev);
518 } else {
519 DRM_WARN("fbcon HPD event lost due to RPM failure: %d\n",
520 ret);
521 }
522
523 mutex_unlock(&fbcon->hotplug_lock);
524 }
525
526 void
nouveau_fbcon_hotplug_resume(struct nouveau_fbdev * fbcon)527 nouveau_fbcon_hotplug_resume(struct nouveau_fbdev *fbcon)
528 {
529 struct nouveau_drm *drm;
530
531 if (!fbcon)
532 return;
533 drm = nouveau_drm(fbcon->helper.dev);
534
535 mutex_lock(&fbcon->hotplug_lock);
536 if (fbcon->hotplug_waiting) {
537 fbcon->hotplug_waiting = false;
538
539 NV_DEBUG(drm, "Handling deferred fbcon HPD events\n");
540 drm_fb_helper_hotplug_event(&fbcon->helper);
541 }
542 mutex_unlock(&fbcon->hotplug_lock);
543 }
544
545 int
nouveau_fbcon_init(struct drm_device * dev)546 nouveau_fbcon_init(struct drm_device *dev)
547 {
548 struct nouveau_drm *drm = nouveau_drm(dev);
549 struct nouveau_fbdev *fbcon;
550 int preferred_bpp = nouveau_fbcon_bpp;
551 int ret;
552
553 if (!dev->mode_config.num_crtc ||
554 (to_pci_dev(dev->dev)->class >> 8) != PCI_CLASS_DISPLAY_VGA)
555 return 0;
556
557 fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
558 if (!fbcon)
559 return -ENOMEM;
560
561 drm->fbcon = fbcon;
562 INIT_WORK(&drm->fbcon_work, nouveau_fbcon_set_suspend_work);
563 mutex_init(&fbcon->hotplug_lock);
564
565 drm_fb_helper_prepare(dev, &fbcon->helper, &nouveau_fbcon_helper_funcs);
566
567 ret = drm_fb_helper_init(dev, &fbcon->helper);
568 if (ret)
569 goto free;
570
571 if (preferred_bpp != 8 && preferred_bpp != 16 && preferred_bpp != 32) {
572 if (drm->client.device.info.ram_size <= 32 * 1024 * 1024)
573 preferred_bpp = 8;
574 else
575 if (drm->client.device.info.ram_size <= 64 * 1024 * 1024)
576 preferred_bpp = 16;
577 else
578 preferred_bpp = 32;
579 }
580
581 /* disable all the possible outputs/crtcs before entering KMS mode */
582 if (!drm_drv_uses_atomic_modeset(dev))
583 drm_helper_disable_unused_functions(dev);
584
585 ret = drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp);
586 if (ret)
587 goto fini;
588
589 if (fbcon->helper.fbdev)
590 fbcon->helper.fbdev->pixmap.buf_align = 4;
591 return 0;
592
593 fini:
594 drm_fb_helper_fini(&fbcon->helper);
595 free:
596 kfree(fbcon);
597 drm->fbcon = NULL;
598 return ret;
599 }
600
601 void
nouveau_fbcon_fini(struct drm_device * dev)602 nouveau_fbcon_fini(struct drm_device *dev)
603 {
604 struct nouveau_drm *drm = nouveau_drm(dev);
605
606 if (!drm->fbcon)
607 return;
608
609 drm_kms_helper_poll_fini(dev);
610 nouveau_fbcon_accel_fini(dev);
611 nouveau_fbcon_destroy(dev, drm->fbcon);
612 kfree(drm->fbcon);
613 drm->fbcon = NULL;
614 }
615