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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> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/sysrq.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/fb.h> | |
37 | #include <linux/init.h> | |
38 | #include <linux/screen_info.h> | |
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 | { | |
55 | struct nouveau_fbcon_par *par = info->par; | |
56 | struct drm_device *dev = par->dev; | |
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, | |
100 | .fb_setcolreg = drm_fb_helper_setcolreg, | |
101 | .fb_fillrect = cfb_fillrect, | |
102 | .fb_copyarea = cfb_copyarea, | |
103 | .fb_imageblit = cfb_imageblit, | |
104 | .fb_sync = nouveau_fbcon_sync, | |
105 | .fb_pan_display = drm_fb_helper_pan_display, | |
106 | .fb_blank = drm_fb_helper_blank, | |
107 | .fb_setcmap = drm_fb_helper_setcmap, | |
108 | }; | |
109 | ||
126b5440 MK |
110 | static struct fb_ops nv04_fbcon_ops = { |
111 | .owner = THIS_MODULE, | |
112 | .fb_check_var = drm_fb_helper_check_var, | |
113 | .fb_set_par = drm_fb_helper_set_par, | |
114 | .fb_setcolreg = drm_fb_helper_setcolreg, | |
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, | |
122 | }; | |
123 | ||
124 | static struct fb_ops nv50_fbcon_ops = { | |
125 | .owner = THIS_MODULE, | |
126 | .fb_check_var = drm_fb_helper_check_var, | |
127 | .fb_set_par = drm_fb_helper_set_par, | |
128 | .fb_setcolreg = drm_fb_helper_setcolreg, | |
129 | .fb_fillrect = nv50_fbcon_fillrect, | |
130 | .fb_copyarea = nv50_fbcon_copyarea, | |
131 | .fb_imageblit = nv50_fbcon_imageblit, | |
132 | .fb_sync = nouveau_fbcon_sync, | |
133 | .fb_pan_display = drm_fb_helper_pan_display, | |
134 | .fb_blank = drm_fb_helper_blank, | |
135 | .fb_setcmap = drm_fb_helper_setcmap, | |
136 | }; | |
137 | ||
6ee73861 BS |
138 | static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, |
139 | u16 blue, int regno) | |
140 | { | |
141 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
142 | ||
143 | nv_crtc->lut.r[regno] = red; | |
144 | nv_crtc->lut.g[regno] = green; | |
145 | nv_crtc->lut.b[regno] = blue; | |
146 | } | |
147 | ||
148 | static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, | |
149 | u16 *blue, int regno) | |
150 | { | |
151 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
152 | ||
153 | *red = nv_crtc->lut.r[regno]; | |
154 | *green = nv_crtc->lut.g[regno]; | |
155 | *blue = nv_crtc->lut.b[regno]; | |
156 | } | |
157 | ||
158 | static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = { | |
159 | .gamma_set = nouveau_fbcon_gamma_set, | |
160 | .gamma_get = nouveau_fbcon_gamma_get | |
161 | }; | |
162 | ||
163 | #if defined(__i386__) || defined(__x86_64__) | |
164 | static bool | |
165 | nouveau_fbcon_has_vesafb_or_efifb(struct drm_device *dev) | |
166 | { | |
167 | struct pci_dev *pdev = dev->pdev; | |
168 | int ramin; | |
169 | ||
170 | if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB && | |
171 | screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) | |
172 | return false; | |
173 | ||
174 | if (screen_info.lfb_base < pci_resource_start(pdev, 1)) | |
175 | goto not_fb; | |
176 | ||
177 | if (screen_info.lfb_base + screen_info.lfb_size >= | |
178 | pci_resource_start(pdev, 1) + pci_resource_len(pdev, 1)) | |
179 | goto not_fb; | |
180 | ||
181 | return true; | |
182 | not_fb: | |
183 | ramin = 2; | |
184 | if (pci_resource_len(pdev, ramin) == 0) { | |
185 | ramin = 3; | |
186 | if (pci_resource_len(pdev, ramin) == 0) | |
187 | return false; | |
188 | } | |
189 | ||
190 | if (screen_info.lfb_base < pci_resource_start(pdev, ramin)) | |
191 | return false; | |
192 | ||
193 | if (screen_info.lfb_base + screen_info.lfb_size >= | |
194 | pci_resource_start(pdev, ramin) + pci_resource_len(pdev, ramin)) | |
195 | return false; | |
196 | ||
197 | return true; | |
198 | } | |
199 | #endif | |
200 | ||
201 | void | |
202 | nouveau_fbcon_zfill(struct drm_device *dev) | |
203 | { | |
204 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
205 | struct fb_info *info = dev_priv->fbdev_info; | |
206 | struct fb_fillrect rect; | |
207 | ||
208 | /* Clear the entire fbcon. The drm will program every connector | |
209 | * with it's preferred mode. If the sizes differ, one display will | |
210 | * quite likely have garbage around the console. | |
211 | */ | |
212 | rect.dx = rect.dy = 0; | |
213 | rect.width = info->var.xres_virtual; | |
214 | rect.height = info->var.yres_virtual; | |
215 | rect.color = 0; | |
216 | rect.rop = ROP_COPY; | |
217 | info->fbops->fb_fillrect(info, &rect); | |
218 | } | |
219 | ||
220 | static int | |
221 | nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width, | |
222 | uint32_t fb_height, uint32_t surface_width, | |
223 | uint32_t surface_height, uint32_t surface_depth, | |
224 | uint32_t surface_bpp, struct drm_framebuffer **pfb) | |
225 | { | |
226 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
227 | struct fb_info *info; | |
228 | struct nouveau_fbcon_par *par; | |
229 | struct drm_framebuffer *fb; | |
230 | struct nouveau_framebuffer *nouveau_fb; | |
231 | struct nouveau_bo *nvbo; | |
232 | struct drm_mode_fb_cmd mode_cmd; | |
233 | struct device *device = &dev->pdev->dev; | |
234 | int size, ret; | |
235 | ||
236 | mode_cmd.width = surface_width; | |
237 | mode_cmd.height = surface_height; | |
238 | ||
239 | mode_cmd.bpp = surface_bpp; | |
240 | mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3); | |
1c7059e4 | 241 | mode_cmd.pitch = roundup(mode_cmd.pitch, 256); |
6ee73861 BS |
242 | mode_cmd.depth = surface_depth; |
243 | ||
244 | size = mode_cmd.pitch * mode_cmd.height; | |
1c7059e4 | 245 | size = roundup(size, PAGE_SIZE); |
6ee73861 BS |
246 | |
247 | ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM, | |
248 | 0, 0x0000, false, true, &nvbo); | |
249 | if (ret) { | |
250 | NV_ERROR(dev, "failed to allocate framebuffer\n"); | |
251 | goto out; | |
252 | } | |
253 | ||
254 | ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM); | |
255 | if (ret) { | |
256 | NV_ERROR(dev, "failed to pin fb: %d\n", ret); | |
257 | nouveau_bo_ref(NULL, &nvbo); | |
258 | goto out; | |
259 | } | |
260 | ||
261 | ret = nouveau_bo_map(nvbo); | |
262 | if (ret) { | |
263 | NV_ERROR(dev, "failed to map fb: %d\n", ret); | |
264 | nouveau_bo_unpin(nvbo); | |
265 | nouveau_bo_ref(NULL, &nvbo); | |
266 | goto out; | |
267 | } | |
268 | ||
269 | mutex_lock(&dev->struct_mutex); | |
270 | ||
271 | fb = nouveau_framebuffer_create(dev, nvbo, &mode_cmd); | |
272 | if (!fb) { | |
273 | ret = -ENOMEM; | |
274 | NV_ERROR(dev, "failed to allocate fb.\n"); | |
275 | goto out_unref; | |
276 | } | |
277 | ||
278 | list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list); | |
279 | ||
280 | nouveau_fb = nouveau_framebuffer(fb); | |
281 | *pfb = fb; | |
282 | ||
283 | info = framebuffer_alloc(sizeof(struct nouveau_fbcon_par), device); | |
284 | if (!info) { | |
285 | ret = -ENOMEM; | |
286 | goto out_unref; | |
287 | } | |
288 | ||
289 | par = info->par; | |
290 | par->helper.funcs = &nouveau_fbcon_helper_funcs; | |
291 | par->helper.dev = dev; | |
292 | ret = drm_fb_helper_init_crtc_count(&par->helper, 2, 4); | |
293 | if (ret) | |
294 | goto out_unref; | |
295 | dev_priv->fbdev_info = info; | |
296 | ||
297 | strcpy(info->fix.id, "nouveaufb"); | |
a32ed69d MK |
298 | if (nouveau_nofbaccel) |
299 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED; | |
300 | else | |
301 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | | |
302 | FBINFO_HWACCEL_FILLRECT | | |
303 | FBINFO_HWACCEL_IMAGEBLIT; | |
6ee73861 BS |
304 | info->fbops = &nouveau_fbcon_ops; |
305 | info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset - | |
306 | dev_priv->vm_vram_base; | |
307 | info->fix.smem_len = size; | |
308 | ||
309 | info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo); | |
310 | info->screen_size = size; | |
311 | ||
312 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); | |
313 | drm_fb_helper_fill_var(info, fb, fb_width, fb_height); | |
314 | ||
315 | /* FIXME: we really shouldn't expose mmio space at all */ | |
316 | info->fix.mmio_start = pci_resource_start(dev->pdev, 1); | |
317 | info->fix.mmio_len = pci_resource_len(dev->pdev, 1); | |
318 | ||
319 | /* Set aperture base/size for vesafb takeover */ | |
320 | #if defined(__i386__) || defined(__x86_64__) | |
321 | if (nouveau_fbcon_has_vesafb_or_efifb(dev)) { | |
322 | /* Some NVIDIA VBIOS' are stupid and decide to put the | |
323 | * framebuffer in the middle of the PRAMIN BAR for | |
324 | * whatever reason. We need to know the exact lfb_base | |
325 | * to get vesafb kicked off, and the only reliable way | |
326 | * we have left is to find out lfb_base the same way | |
327 | * vesafb did. | |
328 | */ | |
329 | info->aperture_base = screen_info.lfb_base; | |
330 | info->aperture_size = screen_info.lfb_size; | |
331 | if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) | |
332 | info->aperture_size *= 65536; | |
333 | } else | |
334 | #endif | |
335 | { | |
336 | info->aperture_base = info->fix.mmio_start; | |
337 | info->aperture_size = info->fix.mmio_len; | |
338 | } | |
339 | ||
340 | info->pixmap.size = 64*1024; | |
341 | info->pixmap.buf_align = 8; | |
342 | info->pixmap.access_align = 32; | |
343 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
344 | info->pixmap.scan_align = 1; | |
345 | ||
346 | fb->fbdev = info; | |
347 | ||
348 | par->nouveau_fb = nouveau_fb; | |
349 | par->dev = dev; | |
350 | ||
a32ed69d | 351 | if (dev_priv->channel && !nouveau_nofbaccel) { |
0735f62e BS |
352 | switch (dev_priv->card_type) { |
353 | case NV_50: | |
354 | nv50_fbcon_accel_init(info); | |
126b5440 | 355 | info->fbops = &nv50_fbcon_ops; |
0735f62e BS |
356 | break; |
357 | default: | |
358 | nv04_fbcon_accel_init(info); | |
126b5440 | 359 | info->fbops = &nv04_fbcon_ops; |
0735f62e BS |
360 | break; |
361 | }; | |
362 | } | |
6ee73861 BS |
363 | |
364 | nouveau_fbcon_zfill(dev); | |
365 | ||
366 | /* To allow resizeing without swapping buffers */ | |
367 | NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n", | |
368 | nouveau_fb->base.width, | |
369 | nouveau_fb->base.height, | |
370 | nvbo->bo.offset, nvbo); | |
371 | ||
372 | mutex_unlock(&dev->struct_mutex); | |
373 | return 0; | |
374 | ||
375 | out_unref: | |
376 | mutex_unlock(&dev->struct_mutex); | |
377 | out: | |
378 | return ret; | |
379 | } | |
380 | ||
381 | int | |
382 | nouveau_fbcon_probe(struct drm_device *dev) | |
383 | { | |
ef2bb506 | 384 | NV_DEBUG_KMS(dev, "\n"); |
6ee73861 BS |
385 | |
386 | return drm_fb_helper_single_fb_probe(dev, 32, nouveau_fbcon_create); | |
387 | } | |
388 | ||
389 | int | |
390 | nouveau_fbcon_remove(struct drm_device *dev, struct drm_framebuffer *fb) | |
391 | { | |
392 | struct nouveau_framebuffer *nouveau_fb = nouveau_framebuffer(fb); | |
393 | struct fb_info *info; | |
394 | ||
395 | if (!fb) | |
396 | return -EINVAL; | |
397 | ||
398 | info = fb->fbdev; | |
399 | if (info) { | |
400 | struct nouveau_fbcon_par *par = info->par; | |
401 | ||
402 | unregister_framebuffer(info); | |
403 | nouveau_bo_unmap(nouveau_fb->nvbo); | |
404 | mutex_lock(&dev->struct_mutex); | |
405 | drm_gem_object_unreference(nouveau_fb->nvbo->gem); | |
406 | nouveau_fb->nvbo = NULL; | |
407 | mutex_unlock(&dev->struct_mutex); | |
408 | if (par) | |
409 | drm_fb_helper_free(&par->helper); | |
410 | framebuffer_release(info); | |
411 | } | |
412 | ||
413 | return 0; | |
414 | } | |
846975a9 MS |
415 | |
416 | void nouveau_fbcon_gpu_lockup(struct fb_info *info) | |
417 | { | |
418 | struct nouveau_fbcon_par *par = info->par; | |
419 | struct drm_device *dev = par->dev; | |
420 | ||
421 | NV_ERROR(dev, "GPU lockup - switching to software fbcon\n"); | |
422 | info->flags |= FBINFO_HWACCEL_DISABLED; | |
423 | } |