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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, | |
be64c2bb CB |
107 | .fb_debug_enter = drm_fb_helper_debug_enter, |
108 | .fb_debug_leave = drm_fb_helper_debug_leave, | |
6ee73861 BS |
109 | }; |
110 | ||
126b5440 MK |
111 | static struct fb_ops nv04_fbcon_ops = { |
112 | .owner = THIS_MODULE, | |
113 | .fb_check_var = drm_fb_helper_check_var, | |
114 | .fb_set_par = drm_fb_helper_set_par, | |
126b5440 MK |
115 | .fb_fillrect = nv04_fbcon_fillrect, |
116 | .fb_copyarea = nv04_fbcon_copyarea, | |
117 | .fb_imageblit = nv04_fbcon_imageblit, | |
118 | .fb_sync = nouveau_fbcon_sync, | |
119 | .fb_pan_display = drm_fb_helper_pan_display, | |
120 | .fb_blank = drm_fb_helper_blank, | |
121 | .fb_setcmap = drm_fb_helper_setcmap, | |
be64c2bb CB |
122 | .fb_debug_enter = drm_fb_helper_debug_enter, |
123 | .fb_debug_leave = drm_fb_helper_debug_leave, | |
126b5440 MK |
124 | }; |
125 | ||
126 | static struct fb_ops nv50_fbcon_ops = { | |
127 | .owner = THIS_MODULE, | |
128 | .fb_check_var = drm_fb_helper_check_var, | |
129 | .fb_set_par = drm_fb_helper_set_par, | |
126b5440 MK |
130 | .fb_fillrect = nv50_fbcon_fillrect, |
131 | .fb_copyarea = nv50_fbcon_copyarea, | |
132 | .fb_imageblit = nv50_fbcon_imageblit, | |
133 | .fb_sync = nouveau_fbcon_sync, | |
134 | .fb_pan_display = drm_fb_helper_pan_display, | |
135 | .fb_blank = drm_fb_helper_blank, | |
136 | .fb_setcmap = drm_fb_helper_setcmap, | |
be64c2bb CB |
137 | .fb_debug_enter = drm_fb_helper_debug_enter, |
138 | .fb_debug_leave = drm_fb_helper_debug_leave, | |
126b5440 MK |
139 | }; |
140 | ||
6ee73861 BS |
141 | static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, |
142 | u16 blue, int regno) | |
143 | { | |
144 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
145 | ||
146 | nv_crtc->lut.r[regno] = red; | |
147 | nv_crtc->lut.g[regno] = green; | |
148 | nv_crtc->lut.b[regno] = blue; | |
149 | } | |
150 | ||
151 | static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, | |
152 | u16 *blue, int regno) | |
153 | { | |
154 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
155 | ||
156 | *red = nv_crtc->lut.r[regno]; | |
157 | *green = nv_crtc->lut.g[regno]; | |
158 | *blue = nv_crtc->lut.b[regno]; | |
159 | } | |
160 | ||
38651674 | 161 | static void |
8be48d92 | 162 | nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev) |
6ee73861 | 163 | { |
8be48d92 | 164 | struct fb_info *info = nfbdev->helper.fbdev; |
6ee73861 BS |
165 | struct fb_fillrect rect; |
166 | ||
167 | /* Clear the entire fbcon. The drm will program every connector | |
168 | * with it's preferred mode. If the sizes differ, one display will | |
169 | * quite likely have garbage around the console. | |
170 | */ | |
171 | rect.dx = rect.dy = 0; | |
172 | rect.width = info->var.xres_virtual; | |
173 | rect.height = info->var.yres_virtual; | |
174 | rect.color = 0; | |
175 | rect.rop = ROP_COPY; | |
176 | info->fbops->fb_fillrect(info, &rect); | |
177 | } | |
178 | ||
179 | static int | |
8be48d92 DA |
180 | nouveau_fbcon_create(struct nouveau_fbdev *nfbdev, |
181 | struct drm_fb_helper_surface_size *sizes) | |
6ee73861 | 182 | { |
8be48d92 | 183 | struct drm_device *dev = nfbdev->dev; |
6ee73861 BS |
184 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
185 | struct fb_info *info; | |
6ee73861 BS |
186 | struct drm_framebuffer *fb; |
187 | struct nouveau_framebuffer *nouveau_fb; | |
188 | struct nouveau_bo *nvbo; | |
189 | struct drm_mode_fb_cmd mode_cmd; | |
1471ca9a MS |
190 | struct pci_dev *pdev = dev->pdev; |
191 | struct device *device = &pdev->dev; | |
6ee73861 BS |
192 | int size, ret; |
193 | ||
38651674 DA |
194 | mode_cmd.width = sizes->surface_width; |
195 | mode_cmd.height = sizes->surface_height; | |
6ee73861 | 196 | |
38651674 | 197 | mode_cmd.bpp = sizes->surface_bpp; |
6ee73861 | 198 | mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3); |
1c7059e4 | 199 | mode_cmd.pitch = roundup(mode_cmd.pitch, 256); |
38651674 | 200 | mode_cmd.depth = sizes->surface_depth; |
6ee73861 BS |
201 | |
202 | size = mode_cmd.pitch * mode_cmd.height; | |
1c7059e4 | 203 | size = roundup(size, PAGE_SIZE); |
6ee73861 BS |
204 | |
205 | ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM, | |
206 | 0, 0x0000, false, true, &nvbo); | |
207 | if (ret) { | |
208 | NV_ERROR(dev, "failed to allocate framebuffer\n"); | |
209 | goto out; | |
210 | } | |
211 | ||
212 | ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM); | |
213 | if (ret) { | |
214 | NV_ERROR(dev, "failed to pin fb: %d\n", ret); | |
215 | nouveau_bo_ref(NULL, &nvbo); | |
216 | goto out; | |
217 | } | |
218 | ||
219 | ret = nouveau_bo_map(nvbo); | |
220 | if (ret) { | |
221 | NV_ERROR(dev, "failed to map fb: %d\n", ret); | |
222 | nouveau_bo_unpin(nvbo); | |
223 | nouveau_bo_ref(NULL, &nvbo); | |
224 | goto out; | |
225 | } | |
226 | ||
227 | mutex_lock(&dev->struct_mutex); | |
228 | ||
8be48d92 | 229 | info = framebuffer_alloc(0, device); |
6ee73861 | 230 | if (!info) { |
6ee73861 | 231 | ret = -ENOMEM; |
6ee73861 BS |
232 | goto out_unref; |
233 | } | |
234 | ||
4abe3520 DA |
235 | ret = fb_alloc_cmap(&info->cmap, 256, 0); |
236 | if (ret) { | |
6ee73861 BS |
237 | ret = -ENOMEM; |
238 | goto out_unref; | |
239 | } | |
240 | ||
8be48d92 | 241 | info->par = nfbdev; |
38651674 | 242 | |
8be48d92 | 243 | nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo); |
38651674 | 244 | |
8be48d92 DA |
245 | nouveau_fb = &nfbdev->nouveau_fb; |
246 | fb = &nouveau_fb->base; | |
38651674 | 247 | |
8be48d92 DA |
248 | /* setup helper */ |
249 | nfbdev->helper.fb = fb; | |
250 | nfbdev->helper.fbdev = info; | |
6ee73861 BS |
251 | |
252 | strcpy(info->fix.id, "nouveaufb"); | |
a32ed69d MK |
253 | if (nouveau_nofbaccel) |
254 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED; | |
255 | else | |
256 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | | |
257 | FBINFO_HWACCEL_FILLRECT | | |
258 | FBINFO_HWACCEL_IMAGEBLIT; | |
8fd4bd22 | 259 | info->flags |= FBINFO_CAN_FORCE_OUTPUT; |
6ee73861 BS |
260 | info->fbops = &nouveau_fbcon_ops; |
261 | info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset - | |
262 | dev_priv->vm_vram_base; | |
263 | info->fix.smem_len = size; | |
264 | ||
265 | info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo); | |
266 | info->screen_size = size; | |
267 | ||
268 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); | |
8be48d92 | 269 | drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height); |
6ee73861 BS |
270 | |
271 | /* FIXME: we really shouldn't expose mmio space at all */ | |
1471ca9a MS |
272 | info->fix.mmio_start = pci_resource_start(pdev, 1); |
273 | info->fix.mmio_len = pci_resource_len(pdev, 1); | |
6ee73861 BS |
274 | |
275 | /* Set aperture base/size for vesafb takeover */ | |
06415c56 | 276 | info->apertures = dev_priv->apertures; |
1471ca9a MS |
277 | if (!info->apertures) { |
278 | ret = -ENOMEM; | |
279 | goto out_unref; | |
280 | } | |
281 | ||
6ee73861 BS |
282 | info->pixmap.size = 64*1024; |
283 | info->pixmap.buf_align = 8; | |
284 | info->pixmap.access_align = 32; | |
285 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
286 | info->pixmap.scan_align = 1; | |
287 | ||
a32ed69d | 288 | if (dev_priv->channel && !nouveau_nofbaccel) { |
0735f62e | 289 | switch (dev_priv->card_type) { |
4b223eef BS |
290 | case NV_C0: |
291 | break; | |
0735f62e BS |
292 | case NV_50: |
293 | nv50_fbcon_accel_init(info); | |
126b5440 | 294 | info->fbops = &nv50_fbcon_ops; |
0735f62e BS |
295 | break; |
296 | default: | |
297 | nv04_fbcon_accel_init(info); | |
126b5440 | 298 | info->fbops = &nv04_fbcon_ops; |
0735f62e BS |
299 | break; |
300 | }; | |
301 | } | |
6ee73861 | 302 | |
8be48d92 | 303 | nouveau_fbcon_zfill(dev, nfbdev); |
6ee73861 BS |
304 | |
305 | /* To allow resizeing without swapping buffers */ | |
306 | NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n", | |
307 | nouveau_fb->base.width, | |
308 | nouveau_fb->base.height, | |
309 | nvbo->bo.offset, nvbo); | |
310 | ||
311 | mutex_unlock(&dev->struct_mutex); | |
6a9ee8af | 312 | vga_switcheroo_client_fb_set(dev->pdev, info); |
6ee73861 BS |
313 | return 0; |
314 | ||
315 | out_unref: | |
316 | mutex_unlock(&dev->struct_mutex); | |
317 | out: | |
318 | return ret; | |
319 | } | |
320 | ||
38651674 | 321 | static int |
8be48d92 DA |
322 | nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper, |
323 | struct drm_fb_helper_surface_size *sizes) | |
6ee73861 | 324 | { |
8be48d92 | 325 | struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper; |
38651674 DA |
326 | int new_fb = 0; |
327 | int ret; | |
328 | ||
8be48d92 DA |
329 | if (!helper->fb) { |
330 | ret = nouveau_fbcon_create(nfbdev, sizes); | |
38651674 DA |
331 | if (ret) |
332 | return ret; | |
38651674 | 333 | new_fb = 1; |
38651674 | 334 | } |
38651674 DA |
335 | return new_fb; |
336 | } | |
6ee73861 | 337 | |
eb1f8e4f DA |
338 | void |
339 | nouveau_fbcon_output_poll_changed(struct drm_device *dev) | |
6ee73861 | 340 | { |
4abe3520 | 341 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
eb1f8e4f | 342 | drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper); |
6ee73861 BS |
343 | } |
344 | ||
6e86e041 | 345 | static int |
8be48d92 | 346 | nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev) |
6ee73861 | 347 | { |
8be48d92 | 348 | struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb; |
6ee73861 BS |
349 | struct fb_info *info; |
350 | ||
8be48d92 DA |
351 | if (nfbdev->helper.fbdev) { |
352 | info = nfbdev->helper.fbdev; | |
6ee73861 | 353 | unregister_framebuffer(info); |
4abe3520 DA |
354 | if (info->cmap.len) |
355 | fb_dealloc_cmap(&info->cmap); | |
8be48d92 DA |
356 | framebuffer_release(info); |
357 | } | |
6ee73861 | 358 | |
8be48d92 | 359 | if (nouveau_fb->nvbo) { |
6ee73861 | 360 | nouveau_bo_unmap(nouveau_fb->nvbo); |
bc9025bd | 361 | drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem); |
6ee73861 | 362 | nouveau_fb->nvbo = NULL; |
6ee73861 | 363 | } |
4abe3520 | 364 | drm_fb_helper_fini(&nfbdev->helper); |
38651674 | 365 | drm_framebuffer_cleanup(&nouveau_fb->base); |
6ee73861 BS |
366 | return 0; |
367 | } | |
846975a9 MS |
368 | |
369 | void nouveau_fbcon_gpu_lockup(struct fb_info *info) | |
370 | { | |
8be48d92 DA |
371 | struct nouveau_fbdev *nfbdev = info->par; |
372 | struct drm_device *dev = nfbdev->dev; | |
846975a9 MS |
373 | |
374 | NV_ERROR(dev, "GPU lockup - switching to software fbcon\n"); | |
375 | info->flags |= FBINFO_HWACCEL_DISABLED; | |
376 | } | |
38651674 | 377 | |
4abe3520 DA |
378 | static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = { |
379 | .gamma_set = nouveau_fbcon_gamma_set, | |
380 | .gamma_get = nouveau_fbcon_gamma_get, | |
381 | .fb_probe = nouveau_fbcon_find_or_create_single, | |
4abe3520 DA |
382 | }; |
383 | ||
384 | ||
38651674 DA |
385 | int nouveau_fbcon_init(struct drm_device *dev) |
386 | { | |
8be48d92 DA |
387 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
388 | struct nouveau_fbdev *nfbdev; | |
5a79395b | 389 | int ret; |
8be48d92 DA |
390 | |
391 | nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL); | |
392 | if (!nfbdev) | |
393 | return -ENOMEM; | |
394 | ||
395 | nfbdev->dev = dev; | |
396 | dev_priv->nfbdev = nfbdev; | |
4abe3520 | 397 | nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs; |
8be48d92 | 398 | |
77144554 FJ |
399 | ret = drm_fb_helper_init(dev, &nfbdev->helper, |
400 | nv_two_heads(dev) ? 2 : 1, 4); | |
5a79395b CW |
401 | if (ret) { |
402 | kfree(nfbdev); | |
403 | return ret; | |
404 | } | |
405 | ||
0b4c0f3f | 406 | drm_fb_helper_single_add_all_connectors(&nfbdev->helper); |
4abe3520 | 407 | drm_fb_helper_initial_config(&nfbdev->helper, 32); |
38651674 DA |
408 | return 0; |
409 | } | |
410 | ||
411 | void nouveau_fbcon_fini(struct drm_device *dev) | |
412 | { | |
413 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
8be48d92 DA |
414 | |
415 | if (!dev_priv->nfbdev) | |
416 | return; | |
417 | ||
38651674 | 418 | nouveau_fbcon_destroy(dev, dev_priv->nfbdev); |
8be48d92 | 419 | kfree(dev_priv->nfbdev); |
38651674 DA |
420 | dev_priv->nfbdev = NULL; |
421 | } | |
422 | ||
423 | void nouveau_fbcon_save_disable_accel(struct drm_device *dev) | |
424 | { | |
425 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
426 | ||
427 | dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags; | |
428 | dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED; | |
429 | } | |
430 | ||
431 | void nouveau_fbcon_restore_accel(struct drm_device *dev) | |
432 | { | |
433 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
434 | dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags; | |
435 | } | |
436 | ||
437 | void nouveau_fbcon_set_suspend(struct drm_device *dev, int state) | |
438 | { | |
439 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
440 | fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state); | |
441 | } | |
442 | ||
443 | void nouveau_fbcon_zfill_all(struct drm_device *dev) | |
444 | { | |
445 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
446 | nouveau_fbcon_zfill(dev, dev_priv->nfbdev); | |
447 | } |