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6ee73861 BS |
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> | |
6ee73861 BS |
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> | |
6a9ee8af | 38 | #include <linux/vga_switcheroo.h> |
6ee73861 BS |
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 | ||
52 | static int | |
53 | nouveau_fbcon_sync(struct fb_info *info) | |
54 | { | |
8be48d92 DA |
55 | struct nouveau_fbdev *nfbdev = info->par; |
56 | struct drm_device *dev = nfbdev->dev; | |
6ee73861 BS |
57 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
58 | struct nouveau_channel *chan = dev_priv->channel; | |
59 | int ret, i; | |
60 | ||
0735f62e | 61 | if (!chan || !chan->accel_done || |
6ee73861 BS |
62 | info->state != FBINFO_STATE_RUNNING || |
63 | info->flags & FBINFO_HWACCEL_DISABLED) | |
64 | return 0; | |
65 | ||
66 | if (RING_SPACE(chan, 4)) { | |
846975a9 | 67 | nouveau_fbcon_gpu_lockup(info); |
6ee73861 BS |
68 | return 0; |
69 | } | |
70 | ||
71 | BEGIN_RING(chan, 0, 0x0104, 1); | |
72 | OUT_RING(chan, 0); | |
73 | BEGIN_RING(chan, 0, 0x0100, 1); | |
74 | OUT_RING(chan, 0); | |
75 | nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy + 3, 0xffffffff); | |
76 | FIRE_RING(chan); | |
77 | ||
78 | ret = -EBUSY; | |
79 | for (i = 0; i < 100000; i++) { | |
80 | if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy + 3)) { | |
81 | ret = 0; | |
82 | break; | |
83 | } | |
84 | DRM_UDELAY(1); | |
85 | } | |
86 | ||
87 | if (ret) { | |
846975a9 | 88 | nouveau_fbcon_gpu_lockup(info); |
6ee73861 BS |
89 | return 0; |
90 | } | |
91 | ||
92 | chan->accel_done = false; | |
93 | return 0; | |
94 | } | |
95 | ||
96 | static struct fb_ops nouveau_fbcon_ops = { | |
97 | .owner = THIS_MODULE, | |
98 | .fb_check_var = drm_fb_helper_check_var, | |
99 | .fb_set_par = drm_fb_helper_set_par, | |
6ee73861 BS |
100 | .fb_fillrect = cfb_fillrect, |
101 | .fb_copyarea = cfb_copyarea, | |
102 | .fb_imageblit = cfb_imageblit, | |
103 | .fb_sync = nouveau_fbcon_sync, | |
104 | .fb_pan_display = drm_fb_helper_pan_display, | |
105 | .fb_blank = drm_fb_helper_blank, | |
106 | .fb_setcmap = drm_fb_helper_setcmap, | |
107 | }; | |
108 | ||
126b5440 MK |
109 | static struct fb_ops nv04_fbcon_ops = { |
110 | .owner = THIS_MODULE, | |
111 | .fb_check_var = drm_fb_helper_check_var, | |
112 | .fb_set_par = drm_fb_helper_set_par, | |
126b5440 MK |
113 | .fb_fillrect = nv04_fbcon_fillrect, |
114 | .fb_copyarea = nv04_fbcon_copyarea, | |
115 | .fb_imageblit = nv04_fbcon_imageblit, | |
116 | .fb_sync = nouveau_fbcon_sync, | |
117 | .fb_pan_display = drm_fb_helper_pan_display, | |
118 | .fb_blank = drm_fb_helper_blank, | |
119 | .fb_setcmap = drm_fb_helper_setcmap, | |
120 | }; | |
121 | ||
122 | static struct fb_ops nv50_fbcon_ops = { | |
123 | .owner = THIS_MODULE, | |
124 | .fb_check_var = drm_fb_helper_check_var, | |
125 | .fb_set_par = drm_fb_helper_set_par, | |
126b5440 MK |
126 | .fb_fillrect = nv50_fbcon_fillrect, |
127 | .fb_copyarea = nv50_fbcon_copyarea, | |
128 | .fb_imageblit = nv50_fbcon_imageblit, | |
129 | .fb_sync = nouveau_fbcon_sync, | |
130 | .fb_pan_display = drm_fb_helper_pan_display, | |
131 | .fb_blank = drm_fb_helper_blank, | |
132 | .fb_setcmap = drm_fb_helper_setcmap, | |
133 | }; | |
134 | ||
6ee73861 BS |
135 | static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, |
136 | u16 blue, int regno) | |
137 | { | |
138 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
139 | ||
140 | nv_crtc->lut.r[regno] = red; | |
141 | nv_crtc->lut.g[regno] = green; | |
142 | nv_crtc->lut.b[regno] = blue; | |
143 | } | |
144 | ||
145 | static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, | |
146 | u16 *blue, int regno) | |
147 | { | |
148 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
149 | ||
150 | *red = nv_crtc->lut.r[regno]; | |
151 | *green = nv_crtc->lut.g[regno]; | |
152 | *blue = nv_crtc->lut.b[regno]; | |
153 | } | |
154 | ||
38651674 | 155 | static void |
8be48d92 | 156 | nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev) |
6ee73861 | 157 | { |
8be48d92 | 158 | struct fb_info *info = nfbdev->helper.fbdev; |
6ee73861 BS |
159 | struct fb_fillrect rect; |
160 | ||
161 | /* Clear the entire fbcon. The drm will program every connector | |
162 | * with it's preferred mode. If the sizes differ, one display will | |
163 | * quite likely have garbage around the console. | |
164 | */ | |
165 | rect.dx = rect.dy = 0; | |
166 | rect.width = info->var.xres_virtual; | |
167 | rect.height = info->var.yres_virtual; | |
168 | rect.color = 0; | |
169 | rect.rop = ROP_COPY; | |
170 | info->fbops->fb_fillrect(info, &rect); | |
171 | } | |
172 | ||
173 | static int | |
8be48d92 DA |
174 | nouveau_fbcon_create(struct nouveau_fbdev *nfbdev, |
175 | struct drm_fb_helper_surface_size *sizes) | |
6ee73861 | 176 | { |
8be48d92 | 177 | struct drm_device *dev = nfbdev->dev; |
6ee73861 BS |
178 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
179 | struct fb_info *info; | |
6ee73861 BS |
180 | struct drm_framebuffer *fb; |
181 | struct nouveau_framebuffer *nouveau_fb; | |
182 | struct nouveau_bo *nvbo; | |
183 | struct drm_mode_fb_cmd mode_cmd; | |
1471ca9a MS |
184 | struct pci_dev *pdev = dev->pdev; |
185 | struct device *device = &pdev->dev; | |
6ee73861 BS |
186 | int size, ret; |
187 | ||
38651674 DA |
188 | mode_cmd.width = sizes->surface_width; |
189 | mode_cmd.height = sizes->surface_height; | |
6ee73861 | 190 | |
38651674 | 191 | mode_cmd.bpp = sizes->surface_bpp; |
6ee73861 | 192 | mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3); |
1c7059e4 | 193 | mode_cmd.pitch = roundup(mode_cmd.pitch, 256); |
38651674 | 194 | mode_cmd.depth = sizes->surface_depth; |
6ee73861 BS |
195 | |
196 | size = mode_cmd.pitch * mode_cmd.height; | |
1c7059e4 | 197 | size = roundup(size, PAGE_SIZE); |
6ee73861 BS |
198 | |
199 | ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM, | |
200 | 0, 0x0000, false, true, &nvbo); | |
201 | if (ret) { | |
202 | NV_ERROR(dev, "failed to allocate framebuffer\n"); | |
203 | goto out; | |
204 | } | |
205 | ||
206 | ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM); | |
207 | if (ret) { | |
208 | NV_ERROR(dev, "failed to pin fb: %d\n", ret); | |
209 | nouveau_bo_ref(NULL, &nvbo); | |
210 | goto out; | |
211 | } | |
212 | ||
213 | ret = nouveau_bo_map(nvbo); | |
214 | if (ret) { | |
215 | NV_ERROR(dev, "failed to map fb: %d\n", ret); | |
216 | nouveau_bo_unpin(nvbo); | |
217 | nouveau_bo_ref(NULL, &nvbo); | |
218 | goto out; | |
219 | } | |
220 | ||
221 | mutex_lock(&dev->struct_mutex); | |
222 | ||
8be48d92 | 223 | info = framebuffer_alloc(0, device); |
6ee73861 | 224 | if (!info) { |
6ee73861 | 225 | ret = -ENOMEM; |
6ee73861 BS |
226 | goto out_unref; |
227 | } | |
228 | ||
4abe3520 DA |
229 | ret = fb_alloc_cmap(&info->cmap, 256, 0); |
230 | if (ret) { | |
6ee73861 BS |
231 | ret = -ENOMEM; |
232 | goto out_unref; | |
233 | } | |
234 | ||
8be48d92 | 235 | info->par = nfbdev; |
38651674 | 236 | |
8be48d92 | 237 | nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo); |
38651674 | 238 | |
8be48d92 DA |
239 | nouveau_fb = &nfbdev->nouveau_fb; |
240 | fb = &nouveau_fb->base; | |
38651674 | 241 | |
8be48d92 DA |
242 | /* setup helper */ |
243 | nfbdev->helper.fb = fb; | |
244 | nfbdev->helper.fbdev = info; | |
6ee73861 BS |
245 | |
246 | strcpy(info->fix.id, "nouveaufb"); | |
a32ed69d MK |
247 | if (nouveau_nofbaccel) |
248 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED; | |
249 | else | |
250 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | | |
251 | FBINFO_HWACCEL_FILLRECT | | |
252 | FBINFO_HWACCEL_IMAGEBLIT; | |
6ee73861 BS |
253 | info->fbops = &nouveau_fbcon_ops; |
254 | info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset - | |
255 | dev_priv->vm_vram_base; | |
256 | info->fix.smem_len = size; | |
257 | ||
258 | info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo); | |
259 | info->screen_size = size; | |
260 | ||
261 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); | |
8be48d92 | 262 | drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height); |
6ee73861 BS |
263 | |
264 | /* FIXME: we really shouldn't expose mmio space at all */ | |
1471ca9a MS |
265 | info->fix.mmio_start = pci_resource_start(pdev, 1); |
266 | info->fix.mmio_len = pci_resource_len(pdev, 1); | |
6ee73861 BS |
267 | |
268 | /* Set aperture base/size for vesafb takeover */ | |
06415c56 | 269 | info->apertures = dev_priv->apertures; |
1471ca9a MS |
270 | if (!info->apertures) { |
271 | ret = -ENOMEM; | |
272 | goto out_unref; | |
273 | } | |
274 | ||
6ee73861 BS |
275 | info->pixmap.size = 64*1024; |
276 | info->pixmap.buf_align = 8; | |
277 | info->pixmap.access_align = 32; | |
278 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
279 | info->pixmap.scan_align = 1; | |
280 | ||
a32ed69d | 281 | if (dev_priv->channel && !nouveau_nofbaccel) { |
0735f62e BS |
282 | switch (dev_priv->card_type) { |
283 | case NV_50: | |
284 | nv50_fbcon_accel_init(info); | |
126b5440 | 285 | info->fbops = &nv50_fbcon_ops; |
0735f62e BS |
286 | break; |
287 | default: | |
288 | nv04_fbcon_accel_init(info); | |
126b5440 | 289 | info->fbops = &nv04_fbcon_ops; |
0735f62e BS |
290 | break; |
291 | }; | |
292 | } | |
6ee73861 | 293 | |
8be48d92 | 294 | nouveau_fbcon_zfill(dev, nfbdev); |
6ee73861 BS |
295 | |
296 | /* To allow resizeing without swapping buffers */ | |
297 | NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n", | |
298 | nouveau_fb->base.width, | |
299 | nouveau_fb->base.height, | |
300 | nvbo->bo.offset, nvbo); | |
301 | ||
302 | mutex_unlock(&dev->struct_mutex); | |
6a9ee8af | 303 | vga_switcheroo_client_fb_set(dev->pdev, info); |
6ee73861 BS |
304 | return 0; |
305 | ||
306 | out_unref: | |
307 | mutex_unlock(&dev->struct_mutex); | |
308 | out: | |
309 | return ret; | |
310 | } | |
311 | ||
38651674 | 312 | static int |
8be48d92 DA |
313 | nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper, |
314 | struct drm_fb_helper_surface_size *sizes) | |
6ee73861 | 315 | { |
8be48d92 | 316 | struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper; |
38651674 DA |
317 | int new_fb = 0; |
318 | int ret; | |
319 | ||
8be48d92 DA |
320 | if (!helper->fb) { |
321 | ret = nouveau_fbcon_create(nfbdev, sizes); | |
38651674 DA |
322 | if (ret) |
323 | return ret; | |
38651674 | 324 | new_fb = 1; |
38651674 | 325 | } |
38651674 DA |
326 | return new_fb; |
327 | } | |
6ee73861 | 328 | |
eb1f8e4f DA |
329 | void |
330 | nouveau_fbcon_output_poll_changed(struct drm_device *dev) | |
6ee73861 | 331 | { |
4abe3520 | 332 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
eb1f8e4f | 333 | drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper); |
6ee73861 BS |
334 | } |
335 | ||
6e86e041 | 336 | static int |
8be48d92 | 337 | nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev) |
6ee73861 | 338 | { |
8be48d92 | 339 | struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb; |
6ee73861 BS |
340 | struct fb_info *info; |
341 | ||
8be48d92 DA |
342 | if (nfbdev->helper.fbdev) { |
343 | info = nfbdev->helper.fbdev; | |
6ee73861 | 344 | unregister_framebuffer(info); |
4abe3520 DA |
345 | if (info->cmap.len) |
346 | fb_dealloc_cmap(&info->cmap); | |
8be48d92 DA |
347 | framebuffer_release(info); |
348 | } | |
6ee73861 | 349 | |
8be48d92 | 350 | if (nouveau_fb->nvbo) { |
6ee73861 | 351 | nouveau_bo_unmap(nouveau_fb->nvbo); |
bc9025bd | 352 | drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem); |
6ee73861 | 353 | nouveau_fb->nvbo = NULL; |
6ee73861 | 354 | } |
4abe3520 | 355 | drm_fb_helper_fini(&nfbdev->helper); |
38651674 | 356 | drm_framebuffer_cleanup(&nouveau_fb->base); |
6ee73861 BS |
357 | return 0; |
358 | } | |
846975a9 MS |
359 | |
360 | void nouveau_fbcon_gpu_lockup(struct fb_info *info) | |
361 | { | |
8be48d92 DA |
362 | struct nouveau_fbdev *nfbdev = info->par; |
363 | struct drm_device *dev = nfbdev->dev; | |
846975a9 MS |
364 | |
365 | NV_ERROR(dev, "GPU lockup - switching to software fbcon\n"); | |
366 | info->flags |= FBINFO_HWACCEL_DISABLED; | |
367 | } | |
38651674 | 368 | |
4abe3520 DA |
369 | static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = { |
370 | .gamma_set = nouveau_fbcon_gamma_set, | |
371 | .gamma_get = nouveau_fbcon_gamma_get, | |
372 | .fb_probe = nouveau_fbcon_find_or_create_single, | |
4abe3520 DA |
373 | }; |
374 | ||
375 | ||
38651674 DA |
376 | int nouveau_fbcon_init(struct drm_device *dev) |
377 | { | |
8be48d92 DA |
378 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
379 | struct nouveau_fbdev *nfbdev; | |
5a79395b | 380 | int ret; |
8be48d92 DA |
381 | |
382 | nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL); | |
383 | if (!nfbdev) | |
384 | return -ENOMEM; | |
385 | ||
386 | nfbdev->dev = dev; | |
387 | dev_priv->nfbdev = nfbdev; | |
4abe3520 | 388 | nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs; |
8be48d92 | 389 | |
77144554 FJ |
390 | ret = drm_fb_helper_init(dev, &nfbdev->helper, |
391 | nv_two_heads(dev) ? 2 : 1, 4); | |
5a79395b CW |
392 | if (ret) { |
393 | kfree(nfbdev); | |
394 | return ret; | |
395 | } | |
396 | ||
0b4c0f3f | 397 | drm_fb_helper_single_add_all_connectors(&nfbdev->helper); |
4abe3520 | 398 | drm_fb_helper_initial_config(&nfbdev->helper, 32); |
38651674 DA |
399 | return 0; |
400 | } | |
401 | ||
402 | void nouveau_fbcon_fini(struct drm_device *dev) | |
403 | { | |
404 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
8be48d92 DA |
405 | |
406 | if (!dev_priv->nfbdev) | |
407 | return; | |
408 | ||
38651674 | 409 | nouveau_fbcon_destroy(dev, dev_priv->nfbdev); |
8be48d92 | 410 | kfree(dev_priv->nfbdev); |
38651674 DA |
411 | dev_priv->nfbdev = NULL; |
412 | } | |
413 | ||
414 | void nouveau_fbcon_save_disable_accel(struct drm_device *dev) | |
415 | { | |
416 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
417 | ||
418 | dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags; | |
419 | dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED; | |
420 | } | |
421 | ||
422 | void nouveau_fbcon_restore_accel(struct drm_device *dev) | |
423 | { | |
424 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
425 | dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags; | |
426 | } | |
427 | ||
428 | void nouveau_fbcon_set_suspend(struct drm_device *dev, int state) | |
429 | { | |
430 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
431 | fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state); | |
432 | } | |
433 | ||
434 | void nouveau_fbcon_zfill_all(struct drm_device *dev) | |
435 | { | |
436 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
437 | nouveau_fbcon_zfill(dev, dev_priv->nfbdev); | |
438 | } |