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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
40#include "drmP.h"
41#include "drm.h"
42#include "drm_crtc.h"
43#include "drm_crtc_helper.h"
44#include "drm_fb_helper.h"
45#include "nouveau_drv.h"
46#include "nouveau_drm.h"
47#include "nouveau_crtc.h"
48#include "nouveau_fb.h"
49#include "nouveau_fbcon.h"
50#include "nouveau_dma.h"
51
52static void
53nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
54{
55 struct nouveau_fbdev *nfbdev = info->par;
56 struct drm_device *dev = nfbdev->dev;
57 struct drm_nouveau_private *dev_priv = dev->dev_private;
58 int ret;
59
60 if (info->state != FBINFO_STATE_RUNNING)
61 return;
62
63 ret = -ENODEV;
64 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
65 mutex_trylock(&dev_priv->channel->mutex)) {
66 if (dev_priv->card_type < NV_50)
67 ret = nv04_fbcon_fillrect(info, rect);
68 else
69 if (dev_priv->card_type < NV_C0)
70 ret = nv50_fbcon_fillrect(info, rect);
71 else
72 ret = nvc0_fbcon_fillrect(info, rect);
73 mutex_unlock(&dev_priv->channel->mutex);
74 }
75
76 if (ret == 0)
77 return;
78
79 if (ret != -ENODEV)
80 nouveau_fbcon_gpu_lockup(info);
81 cfb_fillrect(info, rect);
82}
83
84static void
85nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
86{
87 struct nouveau_fbdev *nfbdev = info->par;
88 struct drm_device *dev = nfbdev->dev;
89 struct drm_nouveau_private *dev_priv = dev->dev_private;
90 int ret;
91
92 if (info->state != FBINFO_STATE_RUNNING)
93 return;
94
95 ret = -ENODEV;
96 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
97 mutex_trylock(&dev_priv->channel->mutex)) {
98 if (dev_priv->card_type < NV_50)
99 ret = nv04_fbcon_copyarea(info, image);
100 else
101 if (dev_priv->card_type < NV_C0)
102 ret = nv50_fbcon_copyarea(info, image);
103 else
104 ret = nvc0_fbcon_copyarea(info, image);
105 mutex_unlock(&dev_priv->channel->mutex);
106 }
107
108 if (ret == 0)
109 return;
110
111 if (ret != -ENODEV)
112 nouveau_fbcon_gpu_lockup(info);
113 cfb_copyarea(info, image);
114}
115
116static void
117nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
118{
119 struct nouveau_fbdev *nfbdev = info->par;
120 struct drm_device *dev = nfbdev->dev;
121 struct drm_nouveau_private *dev_priv = dev->dev_private;
122 int ret;
123
124 if (info->state != FBINFO_STATE_RUNNING)
125 return;
126
127 ret = -ENODEV;
128 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
129 mutex_trylock(&dev_priv->channel->mutex)) {
130 if (dev_priv->card_type < NV_50)
131 ret = nv04_fbcon_imageblit(info, image);
132 else
133 if (dev_priv->card_type < NV_C0)
134 ret = nv50_fbcon_imageblit(info, image);
135 else
136 ret = nvc0_fbcon_imageblit(info, image);
137 mutex_unlock(&dev_priv->channel->mutex);
138 }
139
140 if (ret == 0)
141 return;
142
143 if (ret != -ENODEV)
144 nouveau_fbcon_gpu_lockup(info);
145 cfb_imageblit(info, image);
146}
147
148static int
149nouveau_fbcon_sync(struct fb_info *info)
150{
151 struct nouveau_fbdev *nfbdev = info->par;
152 struct drm_device *dev = nfbdev->dev;
153 struct drm_nouveau_private *dev_priv = dev->dev_private;
154 struct nouveau_channel *chan = dev_priv->channel;
155 int ret, i;
156
157 if (!chan || !chan->accel_done || in_interrupt() ||
158 info->state != FBINFO_STATE_RUNNING ||
159 info->flags & FBINFO_HWACCEL_DISABLED)
160 return 0;
161
162 if (!mutex_trylock(&chan->mutex))
163 return 0;
164
165 ret = RING_SPACE(chan, 4);
166 if (ret) {
167 mutex_unlock(&chan->mutex);
168 nouveau_fbcon_gpu_lockup(info);
169 return 0;
170 }
171
172 if (dev_priv->card_type >= NV_C0) {
173 BEGIN_NVC0(chan, 2, NvSub2D, 0x010c, 1);
174 OUT_RING (chan, 0);
175 BEGIN_NVC0(chan, 2, NvSub2D, 0x0100, 1);
176 OUT_RING (chan, 0);
177 } else {
178 BEGIN_RING(chan, 0, 0x0104, 1);
179 OUT_RING (chan, 0);
180 BEGIN_RING(chan, 0, 0x0100, 1);
181 OUT_RING (chan, 0);
182 }
183
184 nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy/4 + 3, 0xffffffff);
185 FIRE_RING(chan);
186 mutex_unlock(&chan->mutex);
187
188 ret = -EBUSY;
189 for (i = 0; i < 100000; i++) {
190 if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy/4 + 3)) {
191 ret = 0;
192 break;
193 }
194 DRM_UDELAY(1);
195 }
196
197 if (ret) {
198 nouveau_fbcon_gpu_lockup(info);
199 return 0;
200 }
201
202 chan->accel_done = false;
203 return 0;
204}
205
206static struct fb_ops nouveau_fbcon_ops = {
207 .owner = THIS_MODULE,
208 .fb_check_var = drm_fb_helper_check_var,
209 .fb_set_par = drm_fb_helper_set_par,
210 .fb_fillrect = nouveau_fbcon_fillrect,
211 .fb_copyarea = nouveau_fbcon_copyarea,
212 .fb_imageblit = nouveau_fbcon_imageblit,
213 .fb_sync = nouveau_fbcon_sync,
214 .fb_pan_display = drm_fb_helper_pan_display,
215 .fb_blank = drm_fb_helper_blank,
216 .fb_setcmap = drm_fb_helper_setcmap,
217 .fb_debug_enter = drm_fb_helper_debug_enter,
218 .fb_debug_leave = drm_fb_helper_debug_leave,
219};
220
221static struct fb_ops nouveau_fbcon_sw_ops = {
222 .owner = THIS_MODULE,
223 .fb_check_var = drm_fb_helper_check_var,
224 .fb_set_par = drm_fb_helper_set_par,
225 .fb_fillrect = cfb_fillrect,
226 .fb_copyarea = cfb_copyarea,
227 .fb_imageblit = cfb_imageblit,
228 .fb_pan_display = drm_fb_helper_pan_display,
229 .fb_blank = drm_fb_helper_blank,
230 .fb_setcmap = drm_fb_helper_setcmap,
231 .fb_debug_enter = drm_fb_helper_debug_enter,
232 .fb_debug_leave = drm_fb_helper_debug_leave,
233};
234
235static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
236 u16 blue, int regno)
237{
238 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
239
240 nv_crtc->lut.r[regno] = red;
241 nv_crtc->lut.g[regno] = green;
242 nv_crtc->lut.b[regno] = blue;
243}
244
245static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
246 u16 *blue, int regno)
247{
248 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
249
250 *red = nv_crtc->lut.r[regno];
251 *green = nv_crtc->lut.g[regno];
252 *blue = nv_crtc->lut.b[regno];
253}
254
255static void
256nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
257{
258 struct fb_info *info = nfbdev->helper.fbdev;
259 struct fb_fillrect rect;
260
261 /* Clear the entire fbcon. The drm will program every connector
262 * with it's preferred mode. If the sizes differ, one display will
263 * quite likely have garbage around the console.
264 */
265 rect.dx = rect.dy = 0;
266 rect.width = info->var.xres_virtual;
267 rect.height = info->var.yres_virtual;
268 rect.color = 0;
269 rect.rop = ROP_COPY;
270 info->fbops->fb_fillrect(info, &rect);
271}
272
273static int
274nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
275 struct drm_fb_helper_surface_size *sizes)
276{
277 struct drm_device *dev = nfbdev->dev;
278 struct drm_nouveau_private *dev_priv = dev->dev_private;
279 struct fb_info *info;
280 struct drm_framebuffer *fb;
281 struct nouveau_framebuffer *nouveau_fb;
282 struct nouveau_channel *chan;
283 struct nouveau_bo *nvbo;
284 struct drm_mode_fb_cmd mode_cmd;
285 struct pci_dev *pdev = dev->pdev;
286 struct device *device = &pdev->dev;
287 int size, ret;
288
289 mode_cmd.width = sizes->surface_width;
290 mode_cmd.height = sizes->surface_height;
291
292 mode_cmd.bpp = sizes->surface_bpp;
293 mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3);
294 mode_cmd.pitch = roundup(mode_cmd.pitch, 256);
295 mode_cmd.depth = sizes->surface_depth;
296
297 size = mode_cmd.pitch * mode_cmd.height;
298 size = roundup(size, PAGE_SIZE);
299
300 ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
301 0, 0x0000, &nvbo);
302 if (ret) {
303 NV_ERROR(dev, "failed to allocate framebuffer\n");
304 goto out;
305 }
306
307 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
308 if (ret) {
309 NV_ERROR(dev, "failed to pin fb: %d\n", ret);
310 nouveau_bo_ref(NULL, &nvbo);
311 goto out;
312 }
313
314 ret = nouveau_bo_map(nvbo);
315 if (ret) {
316 NV_ERROR(dev, "failed to map fb: %d\n", ret);
317 nouveau_bo_unpin(nvbo);
318 nouveau_bo_ref(NULL, &nvbo);
319 goto out;
320 }
321
322 chan = nouveau_nofbaccel ? NULL : dev_priv->channel;
323 if (chan && dev_priv->card_type >= NV_50) {
324 ret = nouveau_bo_vma_add(nvbo, chan->vm, &nfbdev->nouveau_fb.vma);
325 if (ret) {
326 NV_ERROR(dev, "failed to map fb into chan: %d\n", ret);
327 chan = NULL;
328 }
329 }
330
331 mutex_lock(&dev->struct_mutex);
332
333 info = framebuffer_alloc(0, device);
334 if (!info) {
335 ret = -ENOMEM;
336 goto out_unref;
337 }
338
339 ret = fb_alloc_cmap(&info->cmap, 256, 0);
340 if (ret) {
341 ret = -ENOMEM;
342 goto out_unref;
343 }
344
345 info->par = nfbdev;
346
347 nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo);
348
349 nouveau_fb = &nfbdev->nouveau_fb;
350 fb = &nouveau_fb->base;
351
352 /* setup helper */
353 nfbdev->helper.fb = fb;
354 nfbdev->helper.fbdev = info;
355
356 strcpy(info->fix.id, "nouveaufb");
357 if (nouveau_nofbaccel)
358 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
359 else
360 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
361 FBINFO_HWACCEL_FILLRECT |
362 FBINFO_HWACCEL_IMAGEBLIT;
363 info->flags |= FBINFO_CAN_FORCE_OUTPUT;
364 info->fbops = &nouveau_fbcon_sw_ops;
365 info->fix.smem_start = nvbo->bo.mem.bus.base +
366 nvbo->bo.mem.bus.offset;
367 info->fix.smem_len = size;
368
369 info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
370 info->screen_size = size;
371
372 drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
373 drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
374
375 /* Set aperture base/size for vesafb takeover */
376 info->apertures = dev_priv->apertures;
377 if (!info->apertures) {
378 ret = -ENOMEM;
379 goto out_unref;
380 }
381
382 info->pixmap.size = 64*1024;
383 info->pixmap.buf_align = 8;
384 info->pixmap.access_align = 32;
385 info->pixmap.flags = FB_PIXMAP_SYSTEM;
386 info->pixmap.scan_align = 1;
387
388 mutex_unlock(&dev->struct_mutex);
389
390 if (dev_priv->channel && !nouveau_nofbaccel) {
391 ret = -ENODEV;
392 if (dev_priv->card_type < NV_50)
393 ret = nv04_fbcon_accel_init(info);
394 else
395 if (dev_priv->card_type < NV_C0)
396 ret = nv50_fbcon_accel_init(info);
397 else
398 ret = nvc0_fbcon_accel_init(info);
399
400 if (ret == 0)
401 info->fbops = &nouveau_fbcon_ops;
402 }
403
404 nouveau_fbcon_zfill(dev, nfbdev);
405
406 /* To allow resizeing without swapping buffers */
407 NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
408 nouveau_fb->base.width,
409 nouveau_fb->base.height,
410 nvbo->bo.offset, nvbo);
411
412 vga_switcheroo_client_fb_set(dev->pdev, info);
413 return 0;
414
415out_unref:
416 mutex_unlock(&dev->struct_mutex);
417out:
418 return ret;
419}
420
421static int
422nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
423 struct drm_fb_helper_surface_size *sizes)
424{
425 struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper;
426 int new_fb = 0;
427 int ret;
428
429 if (!helper->fb) {
430 ret = nouveau_fbcon_create(nfbdev, sizes);
431 if (ret)
432 return ret;
433 new_fb = 1;
434 }
435 return new_fb;
436}
437
438void
439nouveau_fbcon_output_poll_changed(struct drm_device *dev)
440{
441 struct drm_nouveau_private *dev_priv = dev->dev_private;
442 drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper);
443}
444
445static int
446nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
447{
448 struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb;
449 struct fb_info *info;
450
451 if (nfbdev->helper.fbdev) {
452 info = nfbdev->helper.fbdev;
453 unregister_framebuffer(info);
454 if (info->cmap.len)
455 fb_dealloc_cmap(&info->cmap);
456 framebuffer_release(info);
457 }
458
459 if (nouveau_fb->nvbo) {
460 nouveau_bo_unmap(nouveau_fb->nvbo);
461 nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
462 drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
463 nouveau_fb->nvbo = NULL;
464 }
465 drm_fb_helper_fini(&nfbdev->helper);
466 drm_framebuffer_cleanup(&nouveau_fb->base);
467 return 0;
468}
469
470void nouveau_fbcon_gpu_lockup(struct fb_info *info)
471{
472 struct nouveau_fbdev *nfbdev = info->par;
473 struct drm_device *dev = nfbdev->dev;
474
475 NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
476 info->flags |= FBINFO_HWACCEL_DISABLED;
477}
478
479static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
480 .gamma_set = nouveau_fbcon_gamma_set,
481 .gamma_get = nouveau_fbcon_gamma_get,
482 .fb_probe = nouveau_fbcon_find_or_create_single,
483};
484
485
486int nouveau_fbcon_init(struct drm_device *dev)
487{
488 struct drm_nouveau_private *dev_priv = dev->dev_private;
489 struct nouveau_fbdev *nfbdev;
490 int ret;
491
492 nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
493 if (!nfbdev)
494 return -ENOMEM;
495
496 nfbdev->dev = dev;
497 dev_priv->nfbdev = nfbdev;
498 nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs;
499
500 ret = drm_fb_helper_init(dev, &nfbdev->helper,
501 nv_two_heads(dev) ? 2 : 1, 4);
502 if (ret) {
503 kfree(nfbdev);
504 return ret;
505 }
506
507 drm_fb_helper_single_add_all_connectors(&nfbdev->helper);
508 drm_fb_helper_initial_config(&nfbdev->helper, 32);
509 return 0;
510}
511
512void nouveau_fbcon_fini(struct drm_device *dev)
513{
514 struct drm_nouveau_private *dev_priv = dev->dev_private;
515
516 if (!dev_priv->nfbdev)
517 return;
518
519 nouveau_fbcon_destroy(dev, dev_priv->nfbdev);
520 kfree(dev_priv->nfbdev);
521 dev_priv->nfbdev = NULL;
522}
523
524void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
525{
526 struct drm_nouveau_private *dev_priv = dev->dev_private;
527
528 dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags;
529 dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
530}
531
532void nouveau_fbcon_restore_accel(struct drm_device *dev)
533{
534 struct drm_nouveau_private *dev_priv = dev->dev_private;
535 dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags;
536}
537
538void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
539{
540 struct drm_nouveau_private *dev_priv = dev->dev_private;
541 fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
542}
543
544void nouveau_fbcon_zfill_all(struct drm_device *dev)
545{
546 struct drm_nouveau_private *dev_priv = dev->dev_private;
547 nouveau_fbcon_zfill(dev, dev_priv->nfbdev);
548}
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 "drmP.h"
42#include "drm.h"
43#include "drm_crtc.h"
44#include "drm_crtc_helper.h"
45#include "drm_fb_helper.h"
46#include "nouveau_drv.h"
47#include "nouveau_drm.h"
48#include "nouveau_crtc.h"
49#include "nouveau_fb.h"
50#include "nouveau_fbcon.h"
51#include "nouveau_dma.h"
52
53static void
54nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
55{
56 struct nouveau_fbdev *nfbdev = info->par;
57 struct drm_device *dev = nfbdev->dev;
58 struct drm_nouveau_private *dev_priv = dev->dev_private;
59 int ret;
60
61 if (info->state != FBINFO_STATE_RUNNING)
62 return;
63
64 ret = -ENODEV;
65 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
66 mutex_trylock(&dev_priv->channel->mutex)) {
67 if (dev_priv->card_type < NV_50)
68 ret = nv04_fbcon_fillrect(info, rect);
69 else
70 if (dev_priv->card_type < NV_C0)
71 ret = nv50_fbcon_fillrect(info, rect);
72 else
73 ret = nvc0_fbcon_fillrect(info, rect);
74 mutex_unlock(&dev_priv->channel->mutex);
75 }
76
77 if (ret == 0)
78 return;
79
80 if (ret != -ENODEV)
81 nouveau_fbcon_gpu_lockup(info);
82 cfb_fillrect(info, rect);
83}
84
85static void
86nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
87{
88 struct nouveau_fbdev *nfbdev = info->par;
89 struct drm_device *dev = nfbdev->dev;
90 struct drm_nouveau_private *dev_priv = dev->dev_private;
91 int ret;
92
93 if (info->state != FBINFO_STATE_RUNNING)
94 return;
95
96 ret = -ENODEV;
97 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
98 mutex_trylock(&dev_priv->channel->mutex)) {
99 if (dev_priv->card_type < NV_50)
100 ret = nv04_fbcon_copyarea(info, image);
101 else
102 if (dev_priv->card_type < NV_C0)
103 ret = nv50_fbcon_copyarea(info, image);
104 else
105 ret = nvc0_fbcon_copyarea(info, image);
106 mutex_unlock(&dev_priv->channel->mutex);
107 }
108
109 if (ret == 0)
110 return;
111
112 if (ret != -ENODEV)
113 nouveau_fbcon_gpu_lockup(info);
114 cfb_copyarea(info, image);
115}
116
117static void
118nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
119{
120 struct nouveau_fbdev *nfbdev = info->par;
121 struct drm_device *dev = nfbdev->dev;
122 struct drm_nouveau_private *dev_priv = dev->dev_private;
123 int ret;
124
125 if (info->state != FBINFO_STATE_RUNNING)
126 return;
127
128 ret = -ENODEV;
129 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
130 mutex_trylock(&dev_priv->channel->mutex)) {
131 if (dev_priv->card_type < NV_50)
132 ret = nv04_fbcon_imageblit(info, image);
133 else
134 if (dev_priv->card_type < NV_C0)
135 ret = nv50_fbcon_imageblit(info, image);
136 else
137 ret = nvc0_fbcon_imageblit(info, image);
138 mutex_unlock(&dev_priv->channel->mutex);
139 }
140
141 if (ret == 0)
142 return;
143
144 if (ret != -ENODEV)
145 nouveau_fbcon_gpu_lockup(info);
146 cfb_imageblit(info, image);
147}
148
149static int
150nouveau_fbcon_sync(struct fb_info *info)
151{
152 struct nouveau_fbdev *nfbdev = info->par;
153 struct drm_device *dev = nfbdev->dev;
154 struct drm_nouveau_private *dev_priv = dev->dev_private;
155 struct nouveau_channel *chan = dev_priv->channel;
156 int ret;
157
158 if (!chan || !chan->accel_done || in_interrupt() ||
159 info->state != FBINFO_STATE_RUNNING ||
160 info->flags & FBINFO_HWACCEL_DISABLED)
161 return 0;
162
163 if (!mutex_trylock(&chan->mutex))
164 return 0;
165
166 ret = nouveau_channel_idle(chan);
167 mutex_unlock(&chan->mutex);
168 if (ret) {
169 nouveau_fbcon_gpu_lockup(info);
170 return 0;
171 }
172
173 chan->accel_done = false;
174 return 0;
175}
176
177static struct fb_ops nouveau_fbcon_ops = {
178 .owner = THIS_MODULE,
179 .fb_check_var = drm_fb_helper_check_var,
180 .fb_set_par = drm_fb_helper_set_par,
181 .fb_fillrect = nouveau_fbcon_fillrect,
182 .fb_copyarea = nouveau_fbcon_copyarea,
183 .fb_imageblit = nouveau_fbcon_imageblit,
184 .fb_sync = nouveau_fbcon_sync,
185 .fb_pan_display = drm_fb_helper_pan_display,
186 .fb_blank = drm_fb_helper_blank,
187 .fb_setcmap = drm_fb_helper_setcmap,
188 .fb_debug_enter = drm_fb_helper_debug_enter,
189 .fb_debug_leave = drm_fb_helper_debug_leave,
190};
191
192static struct fb_ops nouveau_fbcon_sw_ops = {
193 .owner = THIS_MODULE,
194 .fb_check_var = drm_fb_helper_check_var,
195 .fb_set_par = drm_fb_helper_set_par,
196 .fb_fillrect = cfb_fillrect,
197 .fb_copyarea = cfb_copyarea,
198 .fb_imageblit = cfb_imageblit,
199 .fb_pan_display = drm_fb_helper_pan_display,
200 .fb_blank = drm_fb_helper_blank,
201 .fb_setcmap = drm_fb_helper_setcmap,
202 .fb_debug_enter = drm_fb_helper_debug_enter,
203 .fb_debug_leave = drm_fb_helper_debug_leave,
204};
205
206static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
207 u16 blue, int regno)
208{
209 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
210
211 nv_crtc->lut.r[regno] = red;
212 nv_crtc->lut.g[regno] = green;
213 nv_crtc->lut.b[regno] = blue;
214}
215
216static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
217 u16 *blue, int regno)
218{
219 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
220
221 *red = nv_crtc->lut.r[regno];
222 *green = nv_crtc->lut.g[regno];
223 *blue = nv_crtc->lut.b[regno];
224}
225
226static void
227nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
228{
229 struct fb_info *info = nfbdev->helper.fbdev;
230 struct fb_fillrect rect;
231
232 /* Clear the entire fbcon. The drm will program every connector
233 * with it's preferred mode. If the sizes differ, one display will
234 * quite likely have garbage around the console.
235 */
236 rect.dx = rect.dy = 0;
237 rect.width = info->var.xres_virtual;
238 rect.height = info->var.yres_virtual;
239 rect.color = 0;
240 rect.rop = ROP_COPY;
241 info->fbops->fb_fillrect(info, &rect);
242}
243
244static int
245nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
246 struct drm_fb_helper_surface_size *sizes)
247{
248 struct drm_device *dev = nfbdev->dev;
249 struct drm_nouveau_private *dev_priv = dev->dev_private;
250 struct fb_info *info;
251 struct drm_framebuffer *fb;
252 struct nouveau_framebuffer *nouveau_fb;
253 struct nouveau_channel *chan;
254 struct nouveau_bo *nvbo;
255 struct drm_mode_fb_cmd2 mode_cmd;
256 struct pci_dev *pdev = dev->pdev;
257 struct device *device = &pdev->dev;
258 int size, ret;
259
260 mode_cmd.width = sizes->surface_width;
261 mode_cmd.height = sizes->surface_height;
262
263 mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
264 mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
265
266 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
267 sizes->surface_depth);
268
269 size = mode_cmd.pitches[0] * mode_cmd.height;
270 size = roundup(size, PAGE_SIZE);
271
272 ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
273 0, 0x0000, &nvbo);
274 if (ret) {
275 NV_ERROR(dev, "failed to allocate framebuffer\n");
276 goto out;
277 }
278
279 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
280 if (ret) {
281 NV_ERROR(dev, "failed to pin fb: %d\n", ret);
282 nouveau_bo_ref(NULL, &nvbo);
283 goto out;
284 }
285
286 ret = nouveau_bo_map(nvbo);
287 if (ret) {
288 NV_ERROR(dev, "failed to map fb: %d\n", ret);
289 nouveau_bo_unpin(nvbo);
290 nouveau_bo_ref(NULL, &nvbo);
291 goto out;
292 }
293
294 chan = nouveau_nofbaccel ? NULL : dev_priv->channel;
295 if (chan && dev_priv->card_type >= NV_50) {
296 ret = nouveau_bo_vma_add(nvbo, chan->vm, &nfbdev->nouveau_fb.vma);
297 if (ret) {
298 NV_ERROR(dev, "failed to map fb into chan: %d\n", ret);
299 chan = NULL;
300 }
301 }
302
303 mutex_lock(&dev->struct_mutex);
304
305 info = framebuffer_alloc(0, device);
306 if (!info) {
307 ret = -ENOMEM;
308 goto out_unref;
309 }
310
311 ret = fb_alloc_cmap(&info->cmap, 256, 0);
312 if (ret) {
313 ret = -ENOMEM;
314 goto out_unref;
315 }
316
317 info->par = nfbdev;
318
319 nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo);
320
321 nouveau_fb = &nfbdev->nouveau_fb;
322 fb = &nouveau_fb->base;
323
324 /* setup helper */
325 nfbdev->helper.fb = fb;
326 nfbdev->helper.fbdev = info;
327
328 strcpy(info->fix.id, "nouveaufb");
329 if (nouveau_nofbaccel)
330 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
331 else
332 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
333 FBINFO_HWACCEL_FILLRECT |
334 FBINFO_HWACCEL_IMAGEBLIT;
335 info->flags |= FBINFO_CAN_FORCE_OUTPUT;
336 info->fbops = &nouveau_fbcon_sw_ops;
337 info->fix.smem_start = nvbo->bo.mem.bus.base +
338 nvbo->bo.mem.bus.offset;
339 info->fix.smem_len = size;
340
341 info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
342 info->screen_size = size;
343
344 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
345 drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
346
347 /* Set aperture base/size for vesafb takeover */
348 info->apertures = dev_priv->apertures;
349 if (!info->apertures) {
350 ret = -ENOMEM;
351 goto out_unref;
352 }
353
354 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
355
356 mutex_unlock(&dev->struct_mutex);
357
358 if (dev_priv->channel && !nouveau_nofbaccel) {
359 ret = -ENODEV;
360 if (dev_priv->card_type < NV_50)
361 ret = nv04_fbcon_accel_init(info);
362 else
363 if (dev_priv->card_type < NV_C0)
364 ret = nv50_fbcon_accel_init(info);
365 else
366 ret = nvc0_fbcon_accel_init(info);
367
368 if (ret == 0)
369 info->fbops = &nouveau_fbcon_ops;
370 }
371
372 nouveau_fbcon_zfill(dev, nfbdev);
373
374 /* To allow resizeing without swapping buffers */
375 NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
376 nouveau_fb->base.width,
377 nouveau_fb->base.height,
378 nvbo->bo.offset, nvbo);
379
380 vga_switcheroo_client_fb_set(dev->pdev, info);
381 return 0;
382
383out_unref:
384 mutex_unlock(&dev->struct_mutex);
385out:
386 return ret;
387}
388
389static int
390nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
391 struct drm_fb_helper_surface_size *sizes)
392{
393 struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper;
394 int new_fb = 0;
395 int ret;
396
397 if (!helper->fb) {
398 ret = nouveau_fbcon_create(nfbdev, sizes);
399 if (ret)
400 return ret;
401 new_fb = 1;
402 }
403 return new_fb;
404}
405
406void
407nouveau_fbcon_output_poll_changed(struct drm_device *dev)
408{
409 struct drm_nouveau_private *dev_priv = dev->dev_private;
410 drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper);
411}
412
413static int
414nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
415{
416 struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb;
417 struct fb_info *info;
418
419 if (nfbdev->helper.fbdev) {
420 info = nfbdev->helper.fbdev;
421 unregister_framebuffer(info);
422 if (info->cmap.len)
423 fb_dealloc_cmap(&info->cmap);
424 framebuffer_release(info);
425 }
426
427 if (nouveau_fb->nvbo) {
428 nouveau_bo_unmap(nouveau_fb->nvbo);
429 nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
430 drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
431 nouveau_fb->nvbo = NULL;
432 }
433 drm_fb_helper_fini(&nfbdev->helper);
434 drm_framebuffer_cleanup(&nouveau_fb->base);
435 return 0;
436}
437
438void nouveau_fbcon_gpu_lockup(struct fb_info *info)
439{
440 struct nouveau_fbdev *nfbdev = info->par;
441 struct drm_device *dev = nfbdev->dev;
442
443 NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
444 info->flags |= FBINFO_HWACCEL_DISABLED;
445}
446
447static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
448 .gamma_set = nouveau_fbcon_gamma_set,
449 .gamma_get = nouveau_fbcon_gamma_get,
450 .fb_probe = nouveau_fbcon_find_or_create_single,
451};
452
453
454int nouveau_fbcon_init(struct drm_device *dev)
455{
456 struct drm_nouveau_private *dev_priv = dev->dev_private;
457 struct nouveau_fbdev *nfbdev;
458 int preferred_bpp;
459 int ret;
460
461 nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
462 if (!nfbdev)
463 return -ENOMEM;
464
465 nfbdev->dev = dev;
466 dev_priv->nfbdev = nfbdev;
467 nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs;
468
469 ret = drm_fb_helper_init(dev, &nfbdev->helper,
470 dev->mode_config.num_crtc, 4);
471 if (ret) {
472 kfree(nfbdev);
473 return ret;
474 }
475
476 drm_fb_helper_single_add_all_connectors(&nfbdev->helper);
477
478 if (dev_priv->vram_size <= 32 * 1024 * 1024)
479 preferred_bpp = 8;
480 else if (dev_priv->vram_size <= 64 * 1024 * 1024)
481 preferred_bpp = 16;
482 else
483 preferred_bpp = 32;
484
485 drm_fb_helper_initial_config(&nfbdev->helper, preferred_bpp);
486 return 0;
487}
488
489void nouveau_fbcon_fini(struct drm_device *dev)
490{
491 struct drm_nouveau_private *dev_priv = dev->dev_private;
492
493 if (!dev_priv->nfbdev)
494 return;
495
496 nouveau_fbcon_destroy(dev, dev_priv->nfbdev);
497 kfree(dev_priv->nfbdev);
498 dev_priv->nfbdev = NULL;
499}
500
501void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
502{
503 struct drm_nouveau_private *dev_priv = dev->dev_private;
504
505 dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags;
506 dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
507}
508
509void nouveau_fbcon_restore_accel(struct drm_device *dev)
510{
511 struct drm_nouveau_private *dev_priv = dev->dev_private;
512 dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags;
513}
514
515void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
516{
517 struct drm_nouveau_private *dev_priv = dev->dev_private;
518 console_lock();
519 if (state == 0)
520 nouveau_fbcon_save_disable_accel(dev);
521 fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
522 if (state == 1)
523 nouveau_fbcon_restore_accel(dev);
524 console_unlock();
525}
526
527void nouveau_fbcon_zfill_all(struct drm_device *dev)
528{
529 struct drm_nouveau_private *dev_priv = dev->dev_private;
530 nouveau_fbcon_zfill(dev, dev_priv->nfbdev);
531}