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>
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 = RING_SPACE(chan, 4);
167 mutex_unlock(&chan->mutex);
168 nouveau_fbcon_gpu_lockup(info);
172 if (dev_priv->card_type >= NV_C0) {
173 BEGIN_NVC0(chan, 2, NvSub2D, 0x010c, 1);
175 BEGIN_NVC0(chan, 2, NvSub2D, 0x0100, 1);
178 BEGIN_RING(chan, 0, 0x0104, 1);
180 BEGIN_RING(chan, 0, 0x0100, 1);
184 nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy/4 + 3, 0xffffffff);
186 mutex_unlock(&chan->mutex);
189 for (i = 0; i < 100000; i++) {
190 if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy/4 + 3)) {
198 nouveau_fbcon_gpu_lockup(info);
202 chan->accel_done = false;
206 static 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,
221 static 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,
235 static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
238 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
240 nv_crtc->lut.r[regno] = red;
241 nv_crtc->lut.g[regno] = green;
242 nv_crtc->lut.b[regno] = blue;
245 static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
246 u16 *blue, int regno)
248 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
250 *red = nv_crtc->lut.r[regno];
251 *green = nv_crtc->lut.g[regno];
252 *blue = nv_crtc->lut.b[regno];
256 nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
258 struct fb_info *info = nfbdev->helper.fbdev;
259 struct fb_fillrect rect;
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.
265 rect.dx = rect.dy = 0;
266 rect.width = info->var.xres_virtual;
267 rect.height = info->var.yres_virtual;
270 info->fbops->fb_fillrect(info, &rect);
274 nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
275 struct drm_fb_helper_surface_size *sizes)
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_bo *nvbo;
283 struct drm_mode_fb_cmd mode_cmd;
284 struct pci_dev *pdev = dev->pdev;
285 struct device *device = &pdev->dev;
288 mode_cmd.width = sizes->surface_width;
289 mode_cmd.height = sizes->surface_height;
291 mode_cmd.bpp = sizes->surface_bpp;
292 mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3);
293 mode_cmd.pitch = roundup(mode_cmd.pitch, 256);
294 mode_cmd.depth = sizes->surface_depth;
296 size = mode_cmd.pitch * mode_cmd.height;
297 size = roundup(size, PAGE_SIZE);
299 ret = nouveau_gem_new(dev, dev_priv->channel, size, 0,
300 NOUVEAU_GEM_DOMAIN_VRAM, 0, 0x0000, &nvbo);
302 NV_ERROR(dev, "failed to allocate framebuffer\n");
306 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
308 NV_ERROR(dev, "failed to pin fb: %d\n", ret);
309 nouveau_bo_ref(NULL, &nvbo);
313 ret = nouveau_bo_map(nvbo);
315 NV_ERROR(dev, "failed to map fb: %d\n", ret);
316 nouveau_bo_unpin(nvbo);
317 nouveau_bo_ref(NULL, &nvbo);
321 mutex_lock(&dev->struct_mutex);
323 info = framebuffer_alloc(0, device);
329 ret = fb_alloc_cmap(&info->cmap, 256, 0);
337 nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo);
339 nouveau_fb = &nfbdev->nouveau_fb;
340 fb = &nouveau_fb->base;
343 nfbdev->helper.fb = fb;
344 nfbdev->helper.fbdev = info;
346 strcpy(info->fix.id, "nouveaufb");
347 if (nouveau_nofbaccel)
348 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
350 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
351 FBINFO_HWACCEL_FILLRECT |
352 FBINFO_HWACCEL_IMAGEBLIT;
353 info->flags |= FBINFO_CAN_FORCE_OUTPUT;
354 info->fbops = &nouveau_fbcon_sw_ops;
355 info->fix.smem_start = nvbo->bo.mem.bus.base +
356 nvbo->bo.mem.bus.offset;
357 info->fix.smem_len = size;
359 info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
360 info->screen_size = size;
362 drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
363 drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
365 /* Set aperture base/size for vesafb takeover */
366 info->apertures = dev_priv->apertures;
367 if (!info->apertures) {
372 info->pixmap.size = 64*1024;
373 info->pixmap.buf_align = 8;
374 info->pixmap.access_align = 32;
375 info->pixmap.flags = FB_PIXMAP_SYSTEM;
376 info->pixmap.scan_align = 1;
378 mutex_unlock(&dev->struct_mutex);
380 if (dev_priv->channel && !nouveau_nofbaccel) {
382 if (dev_priv->card_type < NV_50)
383 ret = nv04_fbcon_accel_init(info);
385 if (dev_priv->card_type < NV_C0)
386 ret = nv50_fbcon_accel_init(info);
388 ret = nvc0_fbcon_accel_init(info);
391 info->fbops = &nouveau_fbcon_ops;
394 nouveau_fbcon_zfill(dev, nfbdev);
396 /* To allow resizeing without swapping buffers */
397 NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
398 nouveau_fb->base.width,
399 nouveau_fb->base.height,
400 nvbo->bo.offset, nvbo);
402 vga_switcheroo_client_fb_set(dev->pdev, info);
406 mutex_unlock(&dev->struct_mutex);
412 nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
413 struct drm_fb_helper_surface_size *sizes)
415 struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper;
420 ret = nouveau_fbcon_create(nfbdev, sizes);
429 nouveau_fbcon_output_poll_changed(struct drm_device *dev)
431 struct drm_nouveau_private *dev_priv = dev->dev_private;
432 drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper);
436 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
438 struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb;
439 struct fb_info *info;
441 if (nfbdev->helper.fbdev) {
442 info = nfbdev->helper.fbdev;
443 unregister_framebuffer(info);
445 fb_dealloc_cmap(&info->cmap);
446 framebuffer_release(info);
449 if (nouveau_fb->nvbo) {
450 nouveau_bo_unmap(nouveau_fb->nvbo);
451 drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
452 nouveau_fb->nvbo = NULL;
454 drm_fb_helper_fini(&nfbdev->helper);
455 drm_framebuffer_cleanup(&nouveau_fb->base);
459 void nouveau_fbcon_gpu_lockup(struct fb_info *info)
461 struct nouveau_fbdev *nfbdev = info->par;
462 struct drm_device *dev = nfbdev->dev;
464 NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
465 info->flags |= FBINFO_HWACCEL_DISABLED;
468 static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
469 .gamma_set = nouveau_fbcon_gamma_set,
470 .gamma_get = nouveau_fbcon_gamma_get,
471 .fb_probe = nouveau_fbcon_find_or_create_single,
475 int nouveau_fbcon_init(struct drm_device *dev)
477 struct drm_nouveau_private *dev_priv = dev->dev_private;
478 struct nouveau_fbdev *nfbdev;
481 nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
486 dev_priv->nfbdev = nfbdev;
487 nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs;
489 ret = drm_fb_helper_init(dev, &nfbdev->helper,
490 nv_two_heads(dev) ? 2 : 1, 4);
496 drm_fb_helper_single_add_all_connectors(&nfbdev->helper);
497 drm_fb_helper_initial_config(&nfbdev->helper, 32);
501 void nouveau_fbcon_fini(struct drm_device *dev)
503 struct drm_nouveau_private *dev_priv = dev->dev_private;
505 if (!dev_priv->nfbdev)
508 nouveau_fbcon_destroy(dev, dev_priv->nfbdev);
509 kfree(dev_priv->nfbdev);
510 dev_priv->nfbdev = NULL;
513 void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
515 struct drm_nouveau_private *dev_priv = dev->dev_private;
517 dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags;
518 dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
521 void nouveau_fbcon_restore_accel(struct drm_device *dev)
523 struct drm_nouveau_private *dev_priv = dev->dev_private;
524 dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags;
527 void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
529 struct drm_nouveau_private *dev_priv = dev->dev_private;
530 fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
533 void nouveau_fbcon_zfill_all(struct drm_device *dev)
535 struct drm_nouveau_private *dev_priv = dev->dev_private;
536 nouveau_fbcon_zfill(dev, dev_priv->nfbdev);