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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> | |
6a9ee8af | 39 | #include <linux/vga_switcheroo.h> |
6ee73861 BS |
40 | |
41 | #include "drmP.h" | |
42 | #include "drm.h" | |
43 | #include "drm_crtc.h" | |
44 | #include "drm_crtc_helper.h" | |
45 | #include "drm_fb_helper.h" | |
46 | #include "nouveau_drv.h" | |
47 | #include "nouveau_drm.h" | |
48 | #include "nouveau_crtc.h" | |
49 | #include "nouveau_fb.h" | |
50 | #include "nouveau_fbcon.h" | |
51 | #include "nouveau_dma.h" | |
52 | ||
53 | static int | |
54 | nouveau_fbcon_sync(struct fb_info *info) | |
55 | { | |
56 | struct nouveau_fbcon_par *par = info->par; | |
57 | struct drm_device *dev = par->dev; | |
58 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
59 | struct nouveau_channel *chan = dev_priv->channel; | |
60 | int ret, i; | |
61 | ||
0735f62e | 62 | if (!chan || !chan->accel_done || |
6ee73861 BS |
63 | info->state != FBINFO_STATE_RUNNING || |
64 | info->flags & FBINFO_HWACCEL_DISABLED) | |
65 | return 0; | |
66 | ||
67 | if (RING_SPACE(chan, 4)) { | |
846975a9 | 68 | nouveau_fbcon_gpu_lockup(info); |
6ee73861 BS |
69 | return 0; |
70 | } | |
71 | ||
72 | BEGIN_RING(chan, 0, 0x0104, 1); | |
73 | OUT_RING(chan, 0); | |
74 | BEGIN_RING(chan, 0, 0x0100, 1); | |
75 | OUT_RING(chan, 0); | |
76 | nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy + 3, 0xffffffff); | |
77 | FIRE_RING(chan); | |
78 | ||
79 | ret = -EBUSY; | |
80 | for (i = 0; i < 100000; i++) { | |
81 | if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy + 3)) { | |
82 | ret = 0; | |
83 | break; | |
84 | } | |
85 | DRM_UDELAY(1); | |
86 | } | |
87 | ||
88 | if (ret) { | |
846975a9 | 89 | nouveau_fbcon_gpu_lockup(info); |
6ee73861 BS |
90 | return 0; |
91 | } | |
92 | ||
93 | chan->accel_done = false; | |
94 | return 0; | |
95 | } | |
96 | ||
97 | static struct fb_ops nouveau_fbcon_ops = { | |
98 | .owner = THIS_MODULE, | |
99 | .fb_check_var = drm_fb_helper_check_var, | |
100 | .fb_set_par = drm_fb_helper_set_par, | |
101 | .fb_setcolreg = drm_fb_helper_setcolreg, | |
102 | .fb_fillrect = cfb_fillrect, | |
103 | .fb_copyarea = cfb_copyarea, | |
104 | .fb_imageblit = cfb_imageblit, | |
105 | .fb_sync = nouveau_fbcon_sync, | |
106 | .fb_pan_display = drm_fb_helper_pan_display, | |
107 | .fb_blank = drm_fb_helper_blank, | |
108 | .fb_setcmap = drm_fb_helper_setcmap, | |
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, | |
115 | .fb_setcolreg = drm_fb_helper_setcolreg, | |
116 | .fb_fillrect = nv04_fbcon_fillrect, | |
117 | .fb_copyarea = nv04_fbcon_copyarea, | |
118 | .fb_imageblit = nv04_fbcon_imageblit, | |
119 | .fb_sync = nouveau_fbcon_sync, | |
120 | .fb_pan_display = drm_fb_helper_pan_display, | |
121 | .fb_blank = drm_fb_helper_blank, | |
122 | .fb_setcmap = drm_fb_helper_setcmap, | |
123 | }; | |
124 | ||
125 | static struct fb_ops nv50_fbcon_ops = { | |
126 | .owner = THIS_MODULE, | |
127 | .fb_check_var = drm_fb_helper_check_var, | |
128 | .fb_set_par = drm_fb_helper_set_par, | |
129 | .fb_setcolreg = drm_fb_helper_setcolreg, | |
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, | |
137 | }; | |
138 | ||
6ee73861 BS |
139 | static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, |
140 | u16 blue, int regno) | |
141 | { | |
142 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
143 | ||
144 | nv_crtc->lut.r[regno] = red; | |
145 | nv_crtc->lut.g[regno] = green; | |
146 | nv_crtc->lut.b[regno] = blue; | |
147 | } | |
148 | ||
149 | static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, | |
150 | u16 *blue, int regno) | |
151 | { | |
152 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
153 | ||
154 | *red = nv_crtc->lut.r[regno]; | |
155 | *green = nv_crtc->lut.g[regno]; | |
156 | *blue = nv_crtc->lut.b[regno]; | |
157 | } | |
158 | ||
159 | static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = { | |
160 | .gamma_set = nouveau_fbcon_gamma_set, | |
161 | .gamma_get = nouveau_fbcon_gamma_get | |
162 | }; | |
163 | ||
164 | #if defined(__i386__) || defined(__x86_64__) | |
165 | static bool | |
166 | nouveau_fbcon_has_vesafb_or_efifb(struct drm_device *dev) | |
167 | { | |
168 | struct pci_dev *pdev = dev->pdev; | |
169 | int ramin; | |
170 | ||
171 | if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB && | |
172 | screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) | |
173 | return false; | |
174 | ||
175 | if (screen_info.lfb_base < pci_resource_start(pdev, 1)) | |
176 | goto not_fb; | |
177 | ||
178 | if (screen_info.lfb_base + screen_info.lfb_size >= | |
179 | pci_resource_start(pdev, 1) + pci_resource_len(pdev, 1)) | |
180 | goto not_fb; | |
181 | ||
182 | return true; | |
183 | not_fb: | |
184 | ramin = 2; | |
185 | if (pci_resource_len(pdev, ramin) == 0) { | |
186 | ramin = 3; | |
187 | if (pci_resource_len(pdev, ramin) == 0) | |
188 | return false; | |
189 | } | |
190 | ||
191 | if (screen_info.lfb_base < pci_resource_start(pdev, ramin)) | |
192 | return false; | |
193 | ||
194 | if (screen_info.lfb_base + screen_info.lfb_size >= | |
195 | pci_resource_start(pdev, ramin) + pci_resource_len(pdev, ramin)) | |
196 | return false; | |
197 | ||
198 | return true; | |
199 | } | |
200 | #endif | |
201 | ||
202 | void | |
203 | nouveau_fbcon_zfill(struct drm_device *dev) | |
204 | { | |
205 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
206 | struct fb_info *info = dev_priv->fbdev_info; | |
207 | struct fb_fillrect rect; | |
208 | ||
209 | /* Clear the entire fbcon. The drm will program every connector | |
210 | * with it's preferred mode. If the sizes differ, one display will | |
211 | * quite likely have garbage around the console. | |
212 | */ | |
213 | rect.dx = rect.dy = 0; | |
214 | rect.width = info->var.xres_virtual; | |
215 | rect.height = info->var.yres_virtual; | |
216 | rect.color = 0; | |
217 | rect.rop = ROP_COPY; | |
218 | info->fbops->fb_fillrect(info, &rect); | |
219 | } | |
220 | ||
221 | static int | |
222 | nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width, | |
223 | uint32_t fb_height, uint32_t surface_width, | |
224 | uint32_t surface_height, uint32_t surface_depth, | |
225 | uint32_t surface_bpp, struct drm_framebuffer **pfb) | |
226 | { | |
227 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
228 | struct fb_info *info; | |
229 | struct nouveau_fbcon_par *par; | |
230 | struct drm_framebuffer *fb; | |
231 | struct nouveau_framebuffer *nouveau_fb; | |
232 | struct nouveau_bo *nvbo; | |
233 | struct drm_mode_fb_cmd mode_cmd; | |
234 | struct device *device = &dev->pdev->dev; | |
235 | int size, ret; | |
236 | ||
237 | mode_cmd.width = surface_width; | |
238 | mode_cmd.height = surface_height; | |
239 | ||
240 | mode_cmd.bpp = surface_bpp; | |
241 | mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3); | |
1c7059e4 | 242 | mode_cmd.pitch = roundup(mode_cmd.pitch, 256); |
6ee73861 BS |
243 | mode_cmd.depth = surface_depth; |
244 | ||
245 | size = mode_cmd.pitch * mode_cmd.height; | |
1c7059e4 | 246 | size = roundup(size, PAGE_SIZE); |
6ee73861 BS |
247 | |
248 | ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM, | |
249 | 0, 0x0000, false, true, &nvbo); | |
250 | if (ret) { | |
251 | NV_ERROR(dev, "failed to allocate framebuffer\n"); | |
252 | goto out; | |
253 | } | |
254 | ||
255 | ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM); | |
256 | if (ret) { | |
257 | NV_ERROR(dev, "failed to pin fb: %d\n", ret); | |
258 | nouveau_bo_ref(NULL, &nvbo); | |
259 | goto out; | |
260 | } | |
261 | ||
262 | ret = nouveau_bo_map(nvbo); | |
263 | if (ret) { | |
264 | NV_ERROR(dev, "failed to map fb: %d\n", ret); | |
265 | nouveau_bo_unpin(nvbo); | |
266 | nouveau_bo_ref(NULL, &nvbo); | |
267 | goto out; | |
268 | } | |
269 | ||
270 | mutex_lock(&dev->struct_mutex); | |
271 | ||
272 | fb = nouveau_framebuffer_create(dev, nvbo, &mode_cmd); | |
273 | if (!fb) { | |
274 | ret = -ENOMEM; | |
275 | NV_ERROR(dev, "failed to allocate fb.\n"); | |
276 | goto out_unref; | |
277 | } | |
278 | ||
279 | list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list); | |
280 | ||
281 | nouveau_fb = nouveau_framebuffer(fb); | |
282 | *pfb = fb; | |
283 | ||
284 | info = framebuffer_alloc(sizeof(struct nouveau_fbcon_par), device); | |
285 | if (!info) { | |
286 | ret = -ENOMEM; | |
287 | goto out_unref; | |
288 | } | |
289 | ||
290 | par = info->par; | |
291 | par->helper.funcs = &nouveau_fbcon_helper_funcs; | |
292 | par->helper.dev = dev; | |
293 | ret = drm_fb_helper_init_crtc_count(&par->helper, 2, 4); | |
294 | if (ret) | |
295 | goto out_unref; | |
296 | dev_priv->fbdev_info = info; | |
297 | ||
298 | strcpy(info->fix.id, "nouveaufb"); | |
a32ed69d MK |
299 | if (nouveau_nofbaccel) |
300 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED; | |
301 | else | |
302 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | | |
303 | FBINFO_HWACCEL_FILLRECT | | |
304 | FBINFO_HWACCEL_IMAGEBLIT; | |
6ee73861 BS |
305 | info->fbops = &nouveau_fbcon_ops; |
306 | info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset - | |
307 | dev_priv->vm_vram_base; | |
308 | info->fix.smem_len = size; | |
309 | ||
310 | info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo); | |
311 | info->screen_size = size; | |
312 | ||
313 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); | |
314 | drm_fb_helper_fill_var(info, fb, fb_width, fb_height); | |
315 | ||
316 | /* FIXME: we really shouldn't expose mmio space at all */ | |
317 | info->fix.mmio_start = pci_resource_start(dev->pdev, 1); | |
318 | info->fix.mmio_len = pci_resource_len(dev->pdev, 1); | |
319 | ||
320 | /* Set aperture base/size for vesafb takeover */ | |
321 | #if defined(__i386__) || defined(__x86_64__) | |
322 | if (nouveau_fbcon_has_vesafb_or_efifb(dev)) { | |
323 | /* Some NVIDIA VBIOS' are stupid and decide to put the | |
324 | * framebuffer in the middle of the PRAMIN BAR for | |
325 | * whatever reason. We need to know the exact lfb_base | |
326 | * to get vesafb kicked off, and the only reliable way | |
327 | * we have left is to find out lfb_base the same way | |
328 | * vesafb did. | |
329 | */ | |
330 | info->aperture_base = screen_info.lfb_base; | |
331 | info->aperture_size = screen_info.lfb_size; | |
332 | if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) | |
333 | info->aperture_size *= 65536; | |
334 | } else | |
335 | #endif | |
336 | { | |
337 | info->aperture_base = info->fix.mmio_start; | |
338 | info->aperture_size = info->fix.mmio_len; | |
339 | } | |
340 | ||
341 | info->pixmap.size = 64*1024; | |
342 | info->pixmap.buf_align = 8; | |
343 | info->pixmap.access_align = 32; | |
344 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
345 | info->pixmap.scan_align = 1; | |
346 | ||
347 | fb->fbdev = info; | |
348 | ||
349 | par->nouveau_fb = nouveau_fb; | |
350 | par->dev = dev; | |
351 | ||
a32ed69d | 352 | if (dev_priv->channel && !nouveau_nofbaccel) { |
0735f62e BS |
353 | switch (dev_priv->card_type) { |
354 | case NV_50: | |
355 | nv50_fbcon_accel_init(info); | |
126b5440 | 356 | info->fbops = &nv50_fbcon_ops; |
0735f62e BS |
357 | break; |
358 | default: | |
359 | nv04_fbcon_accel_init(info); | |
126b5440 | 360 | info->fbops = &nv04_fbcon_ops; |
0735f62e BS |
361 | break; |
362 | }; | |
363 | } | |
6ee73861 BS |
364 | |
365 | nouveau_fbcon_zfill(dev); | |
366 | ||
367 | /* To allow resizeing without swapping buffers */ | |
368 | NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n", | |
369 | nouveau_fb->base.width, | |
370 | nouveau_fb->base.height, | |
371 | nvbo->bo.offset, nvbo); | |
372 | ||
373 | mutex_unlock(&dev->struct_mutex); | |
6a9ee8af | 374 | vga_switcheroo_client_fb_set(dev->pdev, info); |
6ee73861 BS |
375 | return 0; |
376 | ||
377 | out_unref: | |
378 | mutex_unlock(&dev->struct_mutex); | |
379 | out: | |
380 | return ret; | |
381 | } | |
382 | ||
383 | int | |
384 | nouveau_fbcon_probe(struct drm_device *dev) | |
385 | { | |
ef2bb506 | 386 | NV_DEBUG_KMS(dev, "\n"); |
6ee73861 BS |
387 | |
388 | return drm_fb_helper_single_fb_probe(dev, 32, nouveau_fbcon_create); | |
389 | } | |
390 | ||
391 | int | |
392 | nouveau_fbcon_remove(struct drm_device *dev, struct drm_framebuffer *fb) | |
393 | { | |
394 | struct nouveau_framebuffer *nouveau_fb = nouveau_framebuffer(fb); | |
395 | struct fb_info *info; | |
396 | ||
397 | if (!fb) | |
398 | return -EINVAL; | |
399 | ||
400 | info = fb->fbdev; | |
401 | if (info) { | |
402 | struct nouveau_fbcon_par *par = info->par; | |
403 | ||
404 | unregister_framebuffer(info); | |
405 | nouveau_bo_unmap(nouveau_fb->nvbo); | |
bc9025bd | 406 | drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem); |
6ee73861 | 407 | nouveau_fb->nvbo = NULL; |
6ee73861 BS |
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 | } |