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>
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"
53 nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
55 struct nouveau_fbdev *nfbdev = info->par;
56 struct drm_device *dev = nfbdev->dev;
57 struct drm_nouveau_private *dev_priv = dev->dev_private;
60 if (info->state != FBINFO_STATE_RUNNING)
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);
69 if (dev_priv->card_type < NV_C0)
70 ret = nv50_fbcon_fillrect(info, rect);
72 ret = nvc0_fbcon_fillrect(info, rect);
73 mutex_unlock(&dev_priv->channel->mutex);
80 nouveau_fbcon_gpu_lockup(info);
81 cfb_fillrect(info, rect);
85 nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
87 struct nouveau_fbdev *nfbdev = info->par;
88 struct drm_device *dev = nfbdev->dev;
89 struct drm_nouveau_private *dev_priv = dev->dev_private;
92 if (info->state != FBINFO_STATE_RUNNING)
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);
101 if (dev_priv->card_type < NV_C0)
102 ret = nv50_fbcon_copyarea(info, image);
104 ret = nvc0_fbcon_copyarea(info, image);
105 mutex_unlock(&dev_priv->channel->mutex);
112 nouveau_fbcon_gpu_lockup(info);
113 cfb_copyarea(info, image);
117 nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
119 struct nouveau_fbdev *nfbdev = info->par;
120 struct drm_device *dev = nfbdev->dev;
121 struct drm_nouveau_private *dev_priv = dev->dev_private;
124 if (info->state != FBINFO_STATE_RUNNING)
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);
133 if (dev_priv->card_type < NV_C0)
134 ret = nv50_fbcon_imageblit(info, image);
136 ret = nvc0_fbcon_imageblit(info, image);
137 mutex_unlock(&dev_priv->channel->mutex);
144 nouveau_fbcon_gpu_lockup(info);
145 cfb_imageblit(info, image);
149 nouveau_fbcon_sync(struct fb_info *info)
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;
157 if (!chan || !chan->accel_done || in_interrupt() ||
158 info->state != FBINFO_STATE_RUNNING ||
159 info->flags & FBINFO_HWACCEL_DISABLED)
162 if (!mutex_trylock(&chan->mutex))
165 ret = nouveau_channel_idle(chan);
166 mutex_unlock(&chan->mutex);
168 nouveau_fbcon_gpu_lockup(info);
172 chan->accel_done = false;
176 static struct fb_ops nouveau_fbcon_ops = {
177 .owner = THIS_MODULE,
178 .fb_check_var = drm_fb_helper_check_var,
179 .fb_set_par = drm_fb_helper_set_par,
180 .fb_fillrect = nouveau_fbcon_fillrect,
181 .fb_copyarea = nouveau_fbcon_copyarea,
182 .fb_imageblit = nouveau_fbcon_imageblit,
183 .fb_sync = nouveau_fbcon_sync,
184 .fb_pan_display = drm_fb_helper_pan_display,
185 .fb_blank = drm_fb_helper_blank,
186 .fb_setcmap = drm_fb_helper_setcmap,
187 .fb_debug_enter = drm_fb_helper_debug_enter,
188 .fb_debug_leave = drm_fb_helper_debug_leave,
191 static struct fb_ops nouveau_fbcon_sw_ops = {
192 .owner = THIS_MODULE,
193 .fb_check_var = drm_fb_helper_check_var,
194 .fb_set_par = drm_fb_helper_set_par,
195 .fb_fillrect = cfb_fillrect,
196 .fb_copyarea = cfb_copyarea,
197 .fb_imageblit = cfb_imageblit,
198 .fb_pan_display = drm_fb_helper_pan_display,
199 .fb_blank = drm_fb_helper_blank,
200 .fb_setcmap = drm_fb_helper_setcmap,
201 .fb_debug_enter = drm_fb_helper_debug_enter,
202 .fb_debug_leave = drm_fb_helper_debug_leave,
205 static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
208 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
210 nv_crtc->lut.r[regno] = red;
211 nv_crtc->lut.g[regno] = green;
212 nv_crtc->lut.b[regno] = blue;
215 static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
216 u16 *blue, int regno)
218 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
220 *red = nv_crtc->lut.r[regno];
221 *green = nv_crtc->lut.g[regno];
222 *blue = nv_crtc->lut.b[regno];
226 nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
228 struct fb_info *info = nfbdev->helper.fbdev;
229 struct fb_fillrect rect;
231 /* Clear the entire fbcon. The drm will program every connector
232 * with it's preferred mode. If the sizes differ, one display will
233 * quite likely have garbage around the console.
235 rect.dx = rect.dy = 0;
236 rect.width = info->var.xres_virtual;
237 rect.height = info->var.yres_virtual;
240 info->fbops->fb_fillrect(info, &rect);
244 nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
245 struct drm_fb_helper_surface_size *sizes)
247 struct drm_device *dev = nfbdev->dev;
248 struct drm_nouveau_private *dev_priv = dev->dev_private;
249 struct fb_info *info;
250 struct drm_framebuffer *fb;
251 struct nouveau_framebuffer *nouveau_fb;
252 struct nouveau_channel *chan;
253 struct nouveau_bo *nvbo;
254 struct drm_mode_fb_cmd2 mode_cmd;
255 struct pci_dev *pdev = dev->pdev;
256 struct device *device = &pdev->dev;
259 mode_cmd.width = sizes->surface_width;
260 mode_cmd.height = sizes->surface_height;
262 mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
263 mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
265 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
266 sizes->surface_depth);
268 size = mode_cmd.pitches[0] * mode_cmd.height;
269 size = roundup(size, PAGE_SIZE);
271 ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
274 NV_ERROR(dev, "failed to allocate framebuffer\n");
278 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
280 NV_ERROR(dev, "failed to pin fb: %d\n", ret);
281 nouveau_bo_ref(NULL, &nvbo);
285 ret = nouveau_bo_map(nvbo);
287 NV_ERROR(dev, "failed to map fb: %d\n", ret);
288 nouveau_bo_unpin(nvbo);
289 nouveau_bo_ref(NULL, &nvbo);
293 chan = nouveau_nofbaccel ? NULL : dev_priv->channel;
294 if (chan && dev_priv->card_type >= NV_50) {
295 ret = nouveau_bo_vma_add(nvbo, chan->vm, &nfbdev->nouveau_fb.vma);
297 NV_ERROR(dev, "failed to map fb into chan: %d\n", ret);
302 mutex_lock(&dev->struct_mutex);
304 info = framebuffer_alloc(0, device);
310 ret = fb_alloc_cmap(&info->cmap, 256, 0);
318 nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo);
320 nouveau_fb = &nfbdev->nouveau_fb;
321 fb = &nouveau_fb->base;
324 nfbdev->helper.fb = fb;
325 nfbdev->helper.fbdev = info;
327 strcpy(info->fix.id, "nouveaufb");
328 if (nouveau_nofbaccel)
329 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
331 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
332 FBINFO_HWACCEL_FILLRECT |
333 FBINFO_HWACCEL_IMAGEBLIT;
334 info->flags |= FBINFO_CAN_FORCE_OUTPUT;
335 info->fbops = &nouveau_fbcon_sw_ops;
336 info->fix.smem_start = nvbo->bo.mem.bus.base +
337 nvbo->bo.mem.bus.offset;
338 info->fix.smem_len = size;
340 info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
341 info->screen_size = size;
343 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
344 drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
346 /* Set aperture base/size for vesafb takeover */
347 info->apertures = dev_priv->apertures;
348 if (!info->apertures) {
353 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
355 mutex_unlock(&dev->struct_mutex);
357 if (dev_priv->channel && !nouveau_nofbaccel) {
359 if (dev_priv->card_type < NV_50)
360 ret = nv04_fbcon_accel_init(info);
362 if (dev_priv->card_type < NV_C0)
363 ret = nv50_fbcon_accel_init(info);
365 ret = nvc0_fbcon_accel_init(info);
368 info->fbops = &nouveau_fbcon_ops;
371 nouveau_fbcon_zfill(dev, nfbdev);
373 /* To allow resizeing without swapping buffers */
374 NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
375 nouveau_fb->base.width,
376 nouveau_fb->base.height,
377 nvbo->bo.offset, nvbo);
379 vga_switcheroo_client_fb_set(dev->pdev, info);
383 mutex_unlock(&dev->struct_mutex);
389 nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
390 struct drm_fb_helper_surface_size *sizes)
392 struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper;
397 ret = nouveau_fbcon_create(nfbdev, sizes);
406 nouveau_fbcon_output_poll_changed(struct drm_device *dev)
408 struct drm_nouveau_private *dev_priv = dev->dev_private;
409 drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper);
413 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
415 struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb;
416 struct fb_info *info;
418 if (nfbdev->helper.fbdev) {
419 info = nfbdev->helper.fbdev;
420 unregister_framebuffer(info);
422 fb_dealloc_cmap(&info->cmap);
423 framebuffer_release(info);
426 if (nouveau_fb->nvbo) {
427 nouveau_bo_unmap(nouveau_fb->nvbo);
428 nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
429 drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
430 nouveau_fb->nvbo = NULL;
432 drm_fb_helper_fini(&nfbdev->helper);
433 drm_framebuffer_cleanup(&nouveau_fb->base);
437 void nouveau_fbcon_gpu_lockup(struct fb_info *info)
439 struct nouveau_fbdev *nfbdev = info->par;
440 struct drm_device *dev = nfbdev->dev;
442 NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
443 info->flags |= FBINFO_HWACCEL_DISABLED;
446 static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
447 .gamma_set = nouveau_fbcon_gamma_set,
448 .gamma_get = nouveau_fbcon_gamma_get,
449 .fb_probe = nouveau_fbcon_find_or_create_single,
453 int nouveau_fbcon_init(struct drm_device *dev)
455 struct drm_nouveau_private *dev_priv = dev->dev_private;
456 struct nouveau_fbdev *nfbdev;
460 nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
465 dev_priv->nfbdev = nfbdev;
466 nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs;
468 ret = drm_fb_helper_init(dev, &nfbdev->helper,
469 dev->mode_config.num_crtc, 4);
475 drm_fb_helper_single_add_all_connectors(&nfbdev->helper);
477 if (dev_priv->vram_size <= 32 * 1024 * 1024)
479 else if (dev_priv->vram_size <= 64 * 1024 * 1024)
484 drm_fb_helper_initial_config(&nfbdev->helper, preferred_bpp);
488 void nouveau_fbcon_fini(struct drm_device *dev)
490 struct drm_nouveau_private *dev_priv = dev->dev_private;
492 if (!dev_priv->nfbdev)
495 nouveau_fbcon_destroy(dev, dev_priv->nfbdev);
496 kfree(dev_priv->nfbdev);
497 dev_priv->nfbdev = NULL;
500 void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
502 struct drm_nouveau_private *dev_priv = dev->dev_private;
504 dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags;
505 dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
508 void nouveau_fbcon_restore_accel(struct drm_device *dev)
510 struct drm_nouveau_private *dev_priv = dev->dev_private;
511 dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags;
514 void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
516 struct drm_nouveau_private *dev_priv = dev->dev_private;
519 nouveau_fbcon_save_disable_accel(dev);
520 fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
522 nouveau_fbcon_restore_accel(dev);
526 void nouveau_fbcon_zfill_all(struct drm_device *dev)
528 struct drm_nouveau_private *dev_priv = dev->dev_private;
529 nouveau_fbcon_zfill(dev, dev_priv->nfbdev);