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/fb.h>
36 #include <linux/init.h>
37 #include <linux/screen_info.h>
38 #include <linux/vga_switcheroo.h>
39 #include <linux/console.h>
40
41 #include <drm/drmP.h>
42 #include <drm/drm_crtc.h>
43 #include <drm/drm_crtc_helper.h>
44 #include <drm/drm_fb_helper.h>
45
46 #include "nouveau_drm.h"
47 #include "nouveau_gem.h"
48 #include "nouveau_bo.h"
49 #include "nouveau_fbcon.h"
50 #include "nouveau_chan.h"
51
52 #include "nouveau_crtc.h"
53
54 MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration");
55 int nouveau_nofbaccel = 0;
56 module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);
57
58 static void
nouveau_fbcon_fillrect(struct fb_info * info,const struct fb_fillrect * rect)59 nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
60 {
61 struct nouveau_fbdev *fbcon = info->par;
62 struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
63 struct nvif_device *device = &drm->device;
64 int ret;
65
66 if (info->state != FBINFO_STATE_RUNNING)
67 return;
68
69 ret = -ENODEV;
70 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
71 mutex_trylock(&drm->client.mutex)) {
72 if (device->info.family < NV_DEVICE_INFO_V0_TESLA)
73 ret = nv04_fbcon_fillrect(info, rect);
74 else
75 if (device->info.family < NV_DEVICE_INFO_V0_FERMI)
76 ret = nv50_fbcon_fillrect(info, rect);
77 else
78 ret = nvc0_fbcon_fillrect(info, rect);
79 mutex_unlock(&drm->client.mutex);
80 }
81
82 if (ret == 0)
83 return;
84
85 if (ret != -ENODEV)
86 nouveau_fbcon_gpu_lockup(info);
87 cfb_fillrect(info, rect);
88 }
89
90 static void
nouveau_fbcon_copyarea(struct fb_info * info,const struct fb_copyarea * image)91 nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
92 {
93 struct nouveau_fbdev *fbcon = info->par;
94 struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
95 struct nvif_device *device = &drm->device;
96 int ret;
97
98 if (info->state != FBINFO_STATE_RUNNING)
99 return;
100
101 ret = -ENODEV;
102 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
103 mutex_trylock(&drm->client.mutex)) {
104 if (device->info.family < NV_DEVICE_INFO_V0_TESLA)
105 ret = nv04_fbcon_copyarea(info, image);
106 else
107 if (device->info.family < NV_DEVICE_INFO_V0_FERMI)
108 ret = nv50_fbcon_copyarea(info, image);
109 else
110 ret = nvc0_fbcon_copyarea(info, image);
111 mutex_unlock(&drm->client.mutex);
112 }
113
114 if (ret == 0)
115 return;
116
117 if (ret != -ENODEV)
118 nouveau_fbcon_gpu_lockup(info);
119 cfb_copyarea(info, image);
120 }
121
122 static void
nouveau_fbcon_imageblit(struct fb_info * info,const struct fb_image * image)123 nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
124 {
125 struct nouveau_fbdev *fbcon = info->par;
126 struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
127 struct nvif_device *device = &drm->device;
128 int ret;
129
130 if (info->state != FBINFO_STATE_RUNNING)
131 return;
132
133 ret = -ENODEV;
134 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
135 mutex_trylock(&drm->client.mutex)) {
136 if (device->info.family < NV_DEVICE_INFO_V0_TESLA)
137 ret = nv04_fbcon_imageblit(info, image);
138 else
139 if (device->info.family < NV_DEVICE_INFO_V0_FERMI)
140 ret = nv50_fbcon_imageblit(info, image);
141 else
142 ret = nvc0_fbcon_imageblit(info, image);
143 mutex_unlock(&drm->client.mutex);
144 }
145
146 if (ret == 0)
147 return;
148
149 if (ret != -ENODEV)
150 nouveau_fbcon_gpu_lockup(info);
151 cfb_imageblit(info, image);
152 }
153
154 static int
nouveau_fbcon_sync(struct fb_info * info)155 nouveau_fbcon_sync(struct fb_info *info)
156 {
157 struct nouveau_fbdev *fbcon = info->par;
158 struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
159 struct nouveau_channel *chan = drm->channel;
160 int ret;
161
162 if (!chan || !chan->accel_done || in_interrupt() ||
163 info->state != FBINFO_STATE_RUNNING ||
164 info->flags & FBINFO_HWACCEL_DISABLED)
165 return 0;
166
167 if (!mutex_trylock(&drm->client.mutex))
168 return 0;
169
170 ret = nouveau_channel_idle(chan);
171 mutex_unlock(&drm->client.mutex);
172 if (ret) {
173 nouveau_fbcon_gpu_lockup(info);
174 return 0;
175 }
176
177 chan->accel_done = false;
178 return 0;
179 }
180
181 static int
nouveau_fbcon_open(struct fb_info * info,int user)182 nouveau_fbcon_open(struct fb_info *info, int user)
183 {
184 struct nouveau_fbdev *fbcon = info->par;
185 struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
186 int ret = pm_runtime_get_sync(drm->dev->dev);
187 if (ret < 0 && ret != -EACCES)
188 return ret;
189 return 0;
190 }
191
192 static int
nouveau_fbcon_release(struct fb_info * info,int user)193 nouveau_fbcon_release(struct fb_info *info, int user)
194 {
195 struct nouveau_fbdev *fbcon = info->par;
196 struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
197 pm_runtime_put(drm->dev->dev);
198 return 0;
199 }
200
201 static struct fb_ops nouveau_fbcon_ops = {
202 .owner = THIS_MODULE,
203 .fb_open = nouveau_fbcon_open,
204 .fb_release = nouveau_fbcon_release,
205 .fb_check_var = drm_fb_helper_check_var,
206 .fb_set_par = drm_fb_helper_set_par,
207 .fb_fillrect = nouveau_fbcon_fillrect,
208 .fb_copyarea = nouveau_fbcon_copyarea,
209 .fb_imageblit = nouveau_fbcon_imageblit,
210 .fb_sync = nouveau_fbcon_sync,
211 .fb_pan_display = drm_fb_helper_pan_display,
212 .fb_blank = drm_fb_helper_blank,
213 .fb_setcmap = drm_fb_helper_setcmap,
214 .fb_debug_enter = drm_fb_helper_debug_enter,
215 .fb_debug_leave = drm_fb_helper_debug_leave,
216 };
217
218 static struct fb_ops nouveau_fbcon_sw_ops = {
219 .owner = THIS_MODULE,
220 .fb_open = nouveau_fbcon_open,
221 .fb_release = nouveau_fbcon_release,
222 .fb_check_var = drm_fb_helper_check_var,
223 .fb_set_par = drm_fb_helper_set_par,
224 .fb_fillrect = cfb_fillrect,
225 .fb_copyarea = cfb_copyarea,
226 .fb_imageblit = cfb_imageblit,
227 .fb_pan_display = drm_fb_helper_pan_display,
228 .fb_blank = drm_fb_helper_blank,
229 .fb_setcmap = drm_fb_helper_setcmap,
230 .fb_debug_enter = drm_fb_helper_debug_enter,
231 .fb_debug_leave = drm_fb_helper_debug_leave,
232 };
233
234 void
nouveau_fbcon_accel_save_disable(struct drm_device * dev)235 nouveau_fbcon_accel_save_disable(struct drm_device *dev)
236 {
237 struct nouveau_drm *drm = nouveau_drm(dev);
238 if (drm->fbcon) {
239 drm->fbcon->saved_flags = drm->fbcon->helper.fbdev->flags;
240 drm->fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
241 }
242 }
243
244 void
nouveau_fbcon_accel_restore(struct drm_device * dev)245 nouveau_fbcon_accel_restore(struct drm_device *dev)
246 {
247 struct nouveau_drm *drm = nouveau_drm(dev);
248 if (drm->fbcon) {
249 drm->fbcon->helper.fbdev->flags = drm->fbcon->saved_flags;
250 }
251 }
252
253 static void
nouveau_fbcon_accel_fini(struct drm_device * dev)254 nouveau_fbcon_accel_fini(struct drm_device *dev)
255 {
256 struct nouveau_drm *drm = nouveau_drm(dev);
257 struct nouveau_fbdev *fbcon = drm->fbcon;
258 if (fbcon && drm->channel) {
259 console_lock();
260 fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
261 console_unlock();
262 nouveau_channel_idle(drm->channel);
263 nvif_object_fini(&fbcon->twod);
264 nvif_object_fini(&fbcon->blit);
265 nvif_object_fini(&fbcon->gdi);
266 nvif_object_fini(&fbcon->patt);
267 nvif_object_fini(&fbcon->rop);
268 nvif_object_fini(&fbcon->clip);
269 nvif_object_fini(&fbcon->surf2d);
270 }
271 }
272
273 static void
nouveau_fbcon_accel_init(struct drm_device * dev)274 nouveau_fbcon_accel_init(struct drm_device *dev)
275 {
276 struct nouveau_drm *drm = nouveau_drm(dev);
277 struct nouveau_fbdev *fbcon = drm->fbcon;
278 struct fb_info *info = fbcon->helper.fbdev;
279 int ret;
280
281 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA)
282 ret = nv04_fbcon_accel_init(info);
283 else
284 if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI)
285 ret = nv50_fbcon_accel_init(info);
286 else
287 ret = nvc0_fbcon_accel_init(info);
288
289 if (ret == 0)
290 info->fbops = &nouveau_fbcon_ops;
291 }
292
nouveau_fbcon_gamma_set(struct drm_crtc * crtc,u16 red,u16 green,u16 blue,int regno)293 static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
294 u16 blue, int regno)
295 {
296 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
297
298 nv_crtc->lut.r[regno] = red;
299 nv_crtc->lut.g[regno] = green;
300 nv_crtc->lut.b[regno] = blue;
301 }
302
nouveau_fbcon_gamma_get(struct drm_crtc * crtc,u16 * red,u16 * green,u16 * blue,int regno)303 static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
304 u16 *blue, int regno)
305 {
306 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
307
308 *red = nv_crtc->lut.r[regno];
309 *green = nv_crtc->lut.g[regno];
310 *blue = nv_crtc->lut.b[regno];
311 }
312
313 static void
nouveau_fbcon_zfill(struct drm_device * dev,struct nouveau_fbdev * fbcon)314 nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *fbcon)
315 {
316 struct fb_info *info = fbcon->helper.fbdev;
317 struct fb_fillrect rect;
318
319 /* Clear the entire fbcon. The drm will program every connector
320 * with it's preferred mode. If the sizes differ, one display will
321 * quite likely have garbage around the console.
322 */
323 rect.dx = rect.dy = 0;
324 rect.width = info->var.xres_virtual;
325 rect.height = info->var.yres_virtual;
326 rect.color = 0;
327 rect.rop = ROP_COPY;
328 info->fbops->fb_fillrect(info, &rect);
329 }
330
331 static int
nouveau_fbcon_create(struct drm_fb_helper * helper,struct drm_fb_helper_surface_size * sizes)332 nouveau_fbcon_create(struct drm_fb_helper *helper,
333 struct drm_fb_helper_surface_size *sizes)
334 {
335 struct nouveau_fbdev *fbcon =
336 container_of(helper, struct nouveau_fbdev, helper);
337 struct drm_device *dev = fbcon->dev;
338 struct nouveau_drm *drm = nouveau_drm(dev);
339 struct nvif_device *device = &drm->device;
340 struct fb_info *info;
341 struct drm_framebuffer *fb;
342 struct nouveau_framebuffer *nouveau_fb;
343 struct nouveau_channel *chan;
344 struct nouveau_bo *nvbo;
345 struct drm_mode_fb_cmd2 mode_cmd;
346 struct pci_dev *pdev = dev->pdev;
347 int size, ret;
348
349 mode_cmd.width = sizes->surface_width;
350 mode_cmd.height = sizes->surface_height;
351
352 mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
353 mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
354
355 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
356 sizes->surface_depth);
357
358 size = mode_cmd.pitches[0] * mode_cmd.height;
359 size = roundup(size, PAGE_SIZE);
360
361 ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
362 0, 0x0000, &nvbo);
363 if (ret) {
364 NV_ERROR(drm, "failed to allocate framebuffer\n");
365 goto out;
366 }
367
368 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
369 if (ret) {
370 NV_ERROR(drm, "failed to pin fb: %d\n", ret);
371 goto out_unref;
372 }
373
374 ret = nouveau_bo_map(nvbo);
375 if (ret) {
376 NV_ERROR(drm, "failed to map fb: %d\n", ret);
377 goto out_unpin;
378 }
379
380 chan = nouveau_nofbaccel ? NULL : drm->channel;
381 if (chan && device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
382 ret = nouveau_bo_vma_add(nvbo, drm->client.vm,
383 &fbcon->nouveau_fb.vma);
384 if (ret) {
385 NV_ERROR(drm, "failed to map fb into chan: %d\n", ret);
386 chan = NULL;
387 }
388 }
389
390 mutex_lock(&dev->struct_mutex);
391
392 info = framebuffer_alloc(0, &pdev->dev);
393 if (!info) {
394 ret = -ENOMEM;
395 goto out_unlock;
396 }
397
398 ret = fb_alloc_cmap(&info->cmap, 256, 0);
399 if (ret) {
400 ret = -ENOMEM;
401 framebuffer_release(info);
402 goto out_unlock;
403 }
404
405 info->par = fbcon;
406
407 nouveau_framebuffer_init(dev, &fbcon->nouveau_fb, &mode_cmd, nvbo);
408
409 nouveau_fb = &fbcon->nouveau_fb;
410 fb = &nouveau_fb->base;
411
412 /* setup helper */
413 fbcon->helper.fb = fb;
414 fbcon->helper.fbdev = info;
415
416 strcpy(info->fix.id, "nouveaufb");
417 if (!chan)
418 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
419 else
420 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
421 FBINFO_HWACCEL_FILLRECT |
422 FBINFO_HWACCEL_IMAGEBLIT;
423 info->flags |= FBINFO_CAN_FORCE_OUTPUT;
424 info->fbops = &nouveau_fbcon_sw_ops;
425 info->fix.smem_start = nvbo->bo.mem.bus.base +
426 nvbo->bo.mem.bus.offset;
427 info->fix.smem_len = size;
428
429 info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
430 info->screen_size = size;
431
432 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
433 drm_fb_helper_fill_var(info, &fbcon->helper, sizes->fb_width, sizes->fb_height);
434
435 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
436
437 mutex_unlock(&dev->struct_mutex);
438
439 if (chan)
440 nouveau_fbcon_accel_init(dev);
441 nouveau_fbcon_zfill(dev, fbcon);
442
443 /* To allow resizeing without swapping buffers */
444 NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
445 nouveau_fb->base.width, nouveau_fb->base.height,
446 nvbo->bo.offset, nvbo);
447
448 vga_switcheroo_client_fb_set(dev->pdev, info);
449 return 0;
450
451 out_unlock:
452 mutex_unlock(&dev->struct_mutex);
453 if (chan)
454 nouveau_bo_vma_del(nvbo, &fbcon->nouveau_fb.vma);
455 nouveau_bo_unmap(nvbo);
456 out_unpin:
457 nouveau_bo_unpin(nvbo);
458 out_unref:
459 nouveau_bo_ref(NULL, &nvbo);
460 out:
461 return ret;
462 }
463
464 void
nouveau_fbcon_output_poll_changed(struct drm_device * dev)465 nouveau_fbcon_output_poll_changed(struct drm_device *dev)
466 {
467 struct nouveau_drm *drm = nouveau_drm(dev);
468 if (drm->fbcon)
469 drm_fb_helper_hotplug_event(&drm->fbcon->helper);
470 }
471
472 static int
nouveau_fbcon_destroy(struct drm_device * dev,struct nouveau_fbdev * fbcon)473 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon)
474 {
475 struct nouveau_framebuffer *nouveau_fb = &fbcon->nouveau_fb;
476 struct fb_info *info;
477
478 if (fbcon->helper.fbdev) {
479 info = fbcon->helper.fbdev;
480 unregister_framebuffer(info);
481 if (info->cmap.len)
482 fb_dealloc_cmap(&info->cmap);
483 framebuffer_release(info);
484 }
485
486 if (nouveau_fb->nvbo) {
487 nouveau_bo_unmap(nouveau_fb->nvbo);
488 nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
489 nouveau_bo_unpin(nouveau_fb->nvbo);
490 drm_gem_object_unreference_unlocked(&nouveau_fb->nvbo->gem);
491 nouveau_fb->nvbo = NULL;
492 }
493 drm_fb_helper_fini(&fbcon->helper);
494 drm_framebuffer_unregister_private(&nouveau_fb->base);
495 drm_framebuffer_cleanup(&nouveau_fb->base);
496 return 0;
497 }
498
nouveau_fbcon_gpu_lockup(struct fb_info * info)499 void nouveau_fbcon_gpu_lockup(struct fb_info *info)
500 {
501 struct nouveau_fbdev *fbcon = info->par;
502 struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
503
504 NV_ERROR(drm, "GPU lockup - switching to software fbcon\n");
505 info->flags |= FBINFO_HWACCEL_DISABLED;
506 }
507
508 static const struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
509 .gamma_set = nouveau_fbcon_gamma_set,
510 .gamma_get = nouveau_fbcon_gamma_get,
511 .fb_probe = nouveau_fbcon_create,
512 };
513
514 static void
nouveau_fbcon_set_suspend_work(struct work_struct * work)515 nouveau_fbcon_set_suspend_work(struct work_struct *work)
516 {
517 struct nouveau_fbdev *fbcon = container_of(work, typeof(*fbcon), work);
518 console_lock();
519 nouveau_fbcon_accel_restore(fbcon->dev);
520 nouveau_fbcon_zfill(fbcon->dev, fbcon);
521 fb_set_suspend(fbcon->helper.fbdev, FBINFO_STATE_RUNNING);
522 console_unlock();
523 }
524
525 int
nouveau_fbcon_init(struct drm_device * dev)526 nouveau_fbcon_init(struct drm_device *dev)
527 {
528 struct nouveau_drm *drm = nouveau_drm(dev);
529 struct nouveau_fbdev *fbcon;
530 int preferred_bpp;
531 int ret;
532
533 if (!dev->mode_config.num_crtc ||
534 (dev->pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
535 return 0;
536
537 fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
538 if (!fbcon)
539 return -ENOMEM;
540
541 INIT_WORK(&fbcon->work, nouveau_fbcon_set_suspend_work);
542 fbcon->dev = dev;
543 drm->fbcon = fbcon;
544
545 drm_fb_helper_prepare(dev, &fbcon->helper, &nouveau_fbcon_helper_funcs);
546
547 ret = drm_fb_helper_init(dev, &fbcon->helper,
548 dev->mode_config.num_crtc, 4);
549 if (ret)
550 goto free;
551
552 ret = drm_fb_helper_single_add_all_connectors(&fbcon->helper);
553 if (ret)
554 goto fini;
555
556 if (drm->device.info.ram_size <= 32 * 1024 * 1024)
557 preferred_bpp = 8;
558 else
559 if (drm->device.info.ram_size <= 64 * 1024 * 1024)
560 preferred_bpp = 16;
561 else
562 preferred_bpp = 32;
563
564 /* disable all the possible outputs/crtcs before entering KMS mode */
565 drm_helper_disable_unused_functions(dev);
566
567 ret = drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp);
568 if (ret)
569 goto fini;
570
571 if (fbcon->helper.fbdev)
572 fbcon->helper.fbdev->pixmap.buf_align = 4;
573 return 0;
574
575 fini:
576 drm_fb_helper_fini(&fbcon->helper);
577 free:
578 kfree(fbcon);
579 return ret;
580 }
581
582 void
nouveau_fbcon_fini(struct drm_device * dev)583 nouveau_fbcon_fini(struct drm_device *dev)
584 {
585 struct nouveau_drm *drm = nouveau_drm(dev);
586
587 if (!drm->fbcon)
588 return;
589
590 nouveau_fbcon_accel_fini(dev);
591 nouveau_fbcon_destroy(dev, drm->fbcon);
592 kfree(drm->fbcon);
593 drm->fbcon = NULL;
594 }
595
596 void
nouveau_fbcon_set_suspend(struct drm_device * dev,int state)597 nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
598 {
599 struct nouveau_drm *drm = nouveau_drm(dev);
600 if (drm->fbcon) {
601 if (state == FBINFO_STATE_RUNNING) {
602 schedule_work(&drm->fbcon->work);
603 return;
604 }
605 flush_work(&drm->fbcon->work);
606 console_lock();
607 fb_set_suspend(drm->fbcon->helper.fbdev, state);
608 nouveau_fbcon_accel_save_disable(dev);
609 console_unlock();
610 }
611 }
612