2 * Copyright © 2007 David Airlie
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:
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
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.
27 #include <linux/module.h>
28 #include <linux/kernel.h>
29 #include <linux/errno.h>
30 #include <linux/string.h>
32 #include <linux/tty.h>
33 #include <linux/sysrq.h>
34 #include <linux/delay.h>
36 #include <linux/init.h>
37 #include <linux/screen_info.h>
38 #include <linux/vga_switcheroo.h>
39 #include <linux/console.h>
44 #include "drm_crtc_helper.h"
45 #include "drm_fb_helper.h"
47 #include "nouveau_drm.h"
48 #include "nouveau_gem.h"
49 #include "nouveau_bo.h"
50 #include "nouveau_fb.h"
51 #include "nouveau_fbcon.h"
52 #include "nouveau_chan.h"
54 #include "nouveau_crtc.h"
56 #include <core/client.h>
57 #include <core/device.h>
59 #include <subdev/fb.h>
61 MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration");
62 static int nouveau_nofbaccel = 0;
63 module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);
66 nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
68 struct nouveau_fbdev *fbcon = info->par;
69 struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
70 struct nouveau_device *device = nv_device(drm->device);
73 if (info->state != FBINFO_STATE_RUNNING)
77 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
78 mutex_trylock(&drm->client.mutex)) {
79 if (device->card_type < NV_50)
80 ret = nv04_fbcon_fillrect(info, rect);
82 if (device->card_type < NV_C0)
83 ret = nv50_fbcon_fillrect(info, rect);
85 ret = nvc0_fbcon_fillrect(info, rect);
86 mutex_unlock(&drm->client.mutex);
93 nouveau_fbcon_gpu_lockup(info);
94 cfb_fillrect(info, rect);
98 nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
100 struct nouveau_fbdev *fbcon = info->par;
101 struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
102 struct nouveau_device *device = nv_device(drm->device);
105 if (info->state != FBINFO_STATE_RUNNING)
109 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
110 mutex_trylock(&drm->client.mutex)) {
111 if (device->card_type < NV_50)
112 ret = nv04_fbcon_copyarea(info, image);
114 if (device->card_type < NV_C0)
115 ret = nv50_fbcon_copyarea(info, image);
117 ret = nvc0_fbcon_copyarea(info, image);
118 mutex_unlock(&drm->client.mutex);
125 nouveau_fbcon_gpu_lockup(info);
126 cfb_copyarea(info, image);
130 nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
132 struct nouveau_fbdev *fbcon = info->par;
133 struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
134 struct nouveau_device *device = nv_device(drm->device);
137 if (info->state != FBINFO_STATE_RUNNING)
141 if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
142 mutex_trylock(&drm->client.mutex)) {
143 if (device->card_type < NV_50)
144 ret = nv04_fbcon_imageblit(info, image);
146 if (device->card_type < NV_C0)
147 ret = nv50_fbcon_imageblit(info, image);
149 ret = nvc0_fbcon_imageblit(info, image);
150 mutex_unlock(&drm->client.mutex);
157 nouveau_fbcon_gpu_lockup(info);
158 cfb_imageblit(info, image);
162 nouveau_fbcon_sync(struct fb_info *info)
164 struct nouveau_fbdev *fbcon = info->par;
165 struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
166 struct nouveau_channel *chan = drm->channel;
169 if (!chan || !chan->accel_done || in_interrupt() ||
170 info->state != FBINFO_STATE_RUNNING ||
171 info->flags & FBINFO_HWACCEL_DISABLED)
174 if (!mutex_trylock(&drm->client.mutex))
177 ret = nouveau_channel_idle(chan);
178 mutex_unlock(&drm->client.mutex);
180 nouveau_fbcon_gpu_lockup(info);
184 chan->accel_done = false;
188 static struct fb_ops nouveau_fbcon_ops = {
189 .owner = THIS_MODULE,
190 .fb_check_var = drm_fb_helper_check_var,
191 .fb_set_par = drm_fb_helper_set_par,
192 .fb_fillrect = nouveau_fbcon_fillrect,
193 .fb_copyarea = nouveau_fbcon_copyarea,
194 .fb_imageblit = nouveau_fbcon_imageblit,
195 .fb_sync = nouveau_fbcon_sync,
196 .fb_pan_display = drm_fb_helper_pan_display,
197 .fb_blank = drm_fb_helper_blank,
198 .fb_setcmap = drm_fb_helper_setcmap,
199 .fb_debug_enter = drm_fb_helper_debug_enter,
200 .fb_debug_leave = drm_fb_helper_debug_leave,
203 static struct fb_ops nouveau_fbcon_sw_ops = {
204 .owner = THIS_MODULE,
205 .fb_check_var = drm_fb_helper_check_var,
206 .fb_set_par = drm_fb_helper_set_par,
207 .fb_fillrect = cfb_fillrect,
208 .fb_copyarea = cfb_copyarea,
209 .fb_imageblit = cfb_imageblit,
210 .fb_pan_display = drm_fb_helper_pan_display,
211 .fb_blank = drm_fb_helper_blank,
212 .fb_setcmap = drm_fb_helper_setcmap,
213 .fb_debug_enter = drm_fb_helper_debug_enter,
214 .fb_debug_leave = drm_fb_helper_debug_leave,
217 static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
220 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
222 nv_crtc->lut.r[regno] = red;
223 nv_crtc->lut.g[regno] = green;
224 nv_crtc->lut.b[regno] = blue;
227 static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
228 u16 *blue, int regno)
230 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
232 *red = nv_crtc->lut.r[regno];
233 *green = nv_crtc->lut.g[regno];
234 *blue = nv_crtc->lut.b[regno];
238 nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *fbcon)
240 struct fb_info *info = fbcon->helper.fbdev;
241 struct fb_fillrect rect;
243 /* Clear the entire fbcon. The drm will program every connector
244 * with it's preferred mode. If the sizes differ, one display will
245 * quite likely have garbage around the console.
247 rect.dx = rect.dy = 0;
248 rect.width = info->var.xres_virtual;
249 rect.height = info->var.yres_virtual;
252 info->fbops->fb_fillrect(info, &rect);
256 nouveau_fbcon_create(struct nouveau_fbdev *fbcon,
257 struct drm_fb_helper_surface_size *sizes)
259 struct drm_device *dev = fbcon->dev;
260 struct nouveau_drm *drm = nouveau_newpriv(dev);
261 struct nouveau_device *device = nv_device(drm->device);
262 struct fb_info *info;
263 struct drm_framebuffer *fb;
264 struct nouveau_framebuffer *nouveau_fb;
265 struct nouveau_channel *chan;
266 struct nouveau_bo *nvbo;
267 struct drm_mode_fb_cmd2 mode_cmd;
268 struct pci_dev *pdev = dev->pdev;
271 mode_cmd.width = sizes->surface_width;
272 mode_cmd.height = sizes->surface_height;
274 mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
275 mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
277 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
278 sizes->surface_depth);
280 size = mode_cmd.pitches[0] * mode_cmd.height;
281 size = roundup(size, PAGE_SIZE);
283 ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
286 NV_ERROR(drm, "failed to allocate framebuffer\n");
290 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
292 NV_ERROR(drm, "failed to pin fb: %d\n", ret);
293 nouveau_bo_ref(NULL, &nvbo);
297 ret = nouveau_bo_map(nvbo);
299 NV_ERROR(drm, "failed to map fb: %d\n", ret);
300 nouveau_bo_unpin(nvbo);
301 nouveau_bo_ref(NULL, &nvbo);
305 chan = nouveau_nofbaccel ? NULL : drm->channel;
306 if (chan && device->card_type >= NV_50) {
307 ret = nouveau_bo_vma_add(nvbo, nv_client(chan->cli)->vm,
308 &fbcon->nouveau_fb.vma);
310 NV_ERROR(drm, "failed to map fb into chan: %d\n", ret);
315 mutex_lock(&dev->struct_mutex);
317 info = framebuffer_alloc(0, &pdev->dev);
323 ret = fb_alloc_cmap(&info->cmap, 256, 0);
331 nouveau_framebuffer_init(dev, &fbcon->nouveau_fb, &mode_cmd, nvbo);
333 nouveau_fb = &fbcon->nouveau_fb;
334 fb = &nouveau_fb->base;
337 fbcon->helper.fb = fb;
338 fbcon->helper.fbdev = info;
340 strcpy(info->fix.id, "nouveaufb");
341 if (nouveau_nofbaccel)
342 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
344 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
345 FBINFO_HWACCEL_FILLRECT |
346 FBINFO_HWACCEL_IMAGEBLIT;
347 info->flags |= FBINFO_CAN_FORCE_OUTPUT;
348 info->fbops = &nouveau_fbcon_sw_ops;
349 info->fix.smem_start = nvbo->bo.mem.bus.base +
350 nvbo->bo.mem.bus.offset;
351 info->fix.smem_len = size;
353 info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
354 info->screen_size = size;
356 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
357 drm_fb_helper_fill_var(info, &fbcon->helper, sizes->fb_width, sizes->fb_height);
359 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
361 mutex_unlock(&dev->struct_mutex);
365 if (device->card_type < NV_50)
366 ret = nv04_fbcon_accel_init(info);
368 if (device->card_type < NV_C0)
369 ret = nv50_fbcon_accel_init(info);
371 ret = nvc0_fbcon_accel_init(info);
374 info->fbops = &nouveau_fbcon_ops;
377 nouveau_fbcon_zfill(dev, fbcon);
379 /* To allow resizeing without swapping buffers */
380 NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
381 nouveau_fb->base.width, nouveau_fb->base.height,
382 nvbo->bo.offset, nvbo);
384 vga_switcheroo_client_fb_set(dev->pdev, info);
388 mutex_unlock(&dev->struct_mutex);
394 nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
395 struct drm_fb_helper_surface_size *sizes)
397 struct nouveau_fbdev *fbcon = (struct nouveau_fbdev *)helper;
402 ret = nouveau_fbcon_create(fbcon, sizes);
411 nouveau_fbcon_output_poll_changed(struct drm_device *dev)
413 struct nouveau_drm *drm = nouveau_newpriv(dev);
414 drm_fb_helper_hotplug_event(&drm->fbcon->helper);
418 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon)
420 struct nouveau_framebuffer *nouveau_fb = &fbcon->nouveau_fb;
421 struct fb_info *info;
423 if (fbcon->helper.fbdev) {
424 info = fbcon->helper.fbdev;
425 unregister_framebuffer(info);
427 fb_dealloc_cmap(&info->cmap);
428 framebuffer_release(info);
431 if (nouveau_fb->nvbo) {
432 nouveau_bo_unmap(nouveau_fb->nvbo);
433 nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
434 drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
435 nouveau_fb->nvbo = NULL;
437 drm_fb_helper_fini(&fbcon->helper);
438 drm_framebuffer_cleanup(&nouveau_fb->base);
442 void nouveau_fbcon_gpu_lockup(struct fb_info *info)
444 struct nouveau_fbdev *fbcon = info->par;
445 struct nouveau_drm *drm = nouveau_newpriv(fbcon->dev);
447 NV_ERROR(drm, "GPU lockup - switching to software fbcon\n");
448 info->flags |= FBINFO_HWACCEL_DISABLED;
451 static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
452 .gamma_set = nouveau_fbcon_gamma_set,
453 .gamma_get = nouveau_fbcon_gamma_get,
454 .fb_probe = nouveau_fbcon_find_or_create_single,
459 nouveau_fbcon_init(struct drm_device *dev)
461 struct nouveau_drm *drm = nouveau_newpriv(dev);
462 struct nouveau_fb *pfb = nouveau_fb(drm->device);
463 struct nouveau_fbdev *fbcon;
467 if (!dev->mode_config.num_crtc)
470 fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
476 fbcon->helper.funcs = &nouveau_fbcon_helper_funcs;
478 ret = drm_fb_helper_init(dev, &fbcon->helper,
479 dev->mode_config.num_crtc, 4);
485 drm_fb_helper_single_add_all_connectors(&fbcon->helper);
487 if (pfb->ram.size <= 32 * 1024 * 1024)
490 if (pfb->ram.size <= 64 * 1024 * 1024)
495 drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp);
500 nouveau_fbcon_fini(struct drm_device *dev)
502 struct nouveau_drm *drm = nouveau_newpriv(dev);
507 nouveau_fbcon_destroy(dev, drm->fbcon);
512 void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
514 struct nouveau_drm *drm = nouveau_newpriv(dev);
516 drm->fbcon->saved_flags = drm->fbcon->helper.fbdev->flags;
517 drm->fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
520 void nouveau_fbcon_restore_accel(struct drm_device *dev)
522 struct nouveau_drm *drm = nouveau_newpriv(dev);
523 drm->fbcon->helper.fbdev->flags = drm->fbcon->saved_flags;
526 void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
528 struct nouveau_drm *drm = nouveau_newpriv(dev);
531 nouveau_fbcon_save_disable_accel(dev);
532 fb_set_suspend(drm->fbcon->helper.fbdev, state);
534 nouveau_fbcon_restore_accel(dev);
538 void nouveau_fbcon_zfill_all(struct drm_device *dev)
540 struct nouveau_drm *drm = nouveau_newpriv(dev);
541 nouveau_fbcon_zfill(dev, drm->fbcon);