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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 | ||
110 | static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
111 | u16 blue, int regno) | |
112 | { | |
113 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
114 | ||
115 | nv_crtc->lut.r[regno] = red; | |
116 | nv_crtc->lut.g[regno] = green; | |
117 | nv_crtc->lut.b[regno] = blue; | |
118 | } | |
119 | ||
120 | static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, | |
121 | u16 *blue, int regno) | |
122 | { | |
123 | struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); | |
124 | ||
125 | *red = nv_crtc->lut.r[regno]; | |
126 | *green = nv_crtc->lut.g[regno]; | |
127 | *blue = nv_crtc->lut.b[regno]; | |
128 | } | |
129 | ||
130 | static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = { | |
131 | .gamma_set = nouveau_fbcon_gamma_set, | |
132 | .gamma_get = nouveau_fbcon_gamma_get | |
133 | }; | |
134 | ||
135 | #if defined(__i386__) || defined(__x86_64__) | |
136 | static bool | |
137 | nouveau_fbcon_has_vesafb_or_efifb(struct drm_device *dev) | |
138 | { | |
139 | struct pci_dev *pdev = dev->pdev; | |
140 | int ramin; | |
141 | ||
142 | if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB && | |
143 | screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) | |
144 | return false; | |
145 | ||
146 | if (screen_info.lfb_base < pci_resource_start(pdev, 1)) | |
147 | goto not_fb; | |
148 | ||
149 | if (screen_info.lfb_base + screen_info.lfb_size >= | |
150 | pci_resource_start(pdev, 1) + pci_resource_len(pdev, 1)) | |
151 | goto not_fb; | |
152 | ||
153 | return true; | |
154 | not_fb: | |
155 | ramin = 2; | |
156 | if (pci_resource_len(pdev, ramin) == 0) { | |
157 | ramin = 3; | |
158 | if (pci_resource_len(pdev, ramin) == 0) | |
159 | return false; | |
160 | } | |
161 | ||
162 | if (screen_info.lfb_base < pci_resource_start(pdev, ramin)) | |
163 | return false; | |
164 | ||
165 | if (screen_info.lfb_base + screen_info.lfb_size >= | |
166 | pci_resource_start(pdev, ramin) + pci_resource_len(pdev, ramin)) | |
167 | return false; | |
168 | ||
169 | return true; | |
170 | } | |
171 | #endif | |
172 | ||
173 | void | |
174 | nouveau_fbcon_zfill(struct drm_device *dev) | |
175 | { | |
176 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
177 | struct fb_info *info = dev_priv->fbdev_info; | |
178 | struct fb_fillrect rect; | |
179 | ||
180 | /* Clear the entire fbcon. The drm will program every connector | |
181 | * with it's preferred mode. If the sizes differ, one display will | |
182 | * quite likely have garbage around the console. | |
183 | */ | |
184 | rect.dx = rect.dy = 0; | |
185 | rect.width = info->var.xres_virtual; | |
186 | rect.height = info->var.yres_virtual; | |
187 | rect.color = 0; | |
188 | rect.rop = ROP_COPY; | |
189 | info->fbops->fb_fillrect(info, &rect); | |
190 | } | |
191 | ||
192 | static int | |
193 | nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width, | |
194 | uint32_t fb_height, uint32_t surface_width, | |
195 | uint32_t surface_height, uint32_t surface_depth, | |
196 | uint32_t surface_bpp, struct drm_framebuffer **pfb) | |
197 | { | |
198 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
199 | struct fb_info *info; | |
200 | struct nouveau_fbcon_par *par; | |
201 | struct drm_framebuffer *fb; | |
202 | struct nouveau_framebuffer *nouveau_fb; | |
203 | struct nouveau_bo *nvbo; | |
204 | struct drm_mode_fb_cmd mode_cmd; | |
205 | struct device *device = &dev->pdev->dev; | |
206 | int size, ret; | |
207 | ||
208 | mode_cmd.width = surface_width; | |
209 | mode_cmd.height = surface_height; | |
210 | ||
211 | mode_cmd.bpp = surface_bpp; | |
212 | mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3); | |
1c7059e4 | 213 | mode_cmd.pitch = roundup(mode_cmd.pitch, 256); |
6ee73861 BS |
214 | mode_cmd.depth = surface_depth; |
215 | ||
216 | size = mode_cmd.pitch * mode_cmd.height; | |
1c7059e4 | 217 | size = roundup(size, PAGE_SIZE); |
6ee73861 BS |
218 | |
219 | ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM, | |
220 | 0, 0x0000, false, true, &nvbo); | |
221 | if (ret) { | |
222 | NV_ERROR(dev, "failed to allocate framebuffer\n"); | |
223 | goto out; | |
224 | } | |
225 | ||
226 | ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM); | |
227 | if (ret) { | |
228 | NV_ERROR(dev, "failed to pin fb: %d\n", ret); | |
229 | nouveau_bo_ref(NULL, &nvbo); | |
230 | goto out; | |
231 | } | |
232 | ||
233 | ret = nouveau_bo_map(nvbo); | |
234 | if (ret) { | |
235 | NV_ERROR(dev, "failed to map fb: %d\n", ret); | |
236 | nouveau_bo_unpin(nvbo); | |
237 | nouveau_bo_ref(NULL, &nvbo); | |
238 | goto out; | |
239 | } | |
240 | ||
241 | mutex_lock(&dev->struct_mutex); | |
242 | ||
243 | fb = nouveau_framebuffer_create(dev, nvbo, &mode_cmd); | |
244 | if (!fb) { | |
245 | ret = -ENOMEM; | |
246 | NV_ERROR(dev, "failed to allocate fb.\n"); | |
247 | goto out_unref; | |
248 | } | |
249 | ||
250 | list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list); | |
251 | ||
252 | nouveau_fb = nouveau_framebuffer(fb); | |
253 | *pfb = fb; | |
254 | ||
255 | info = framebuffer_alloc(sizeof(struct nouveau_fbcon_par), device); | |
256 | if (!info) { | |
257 | ret = -ENOMEM; | |
258 | goto out_unref; | |
259 | } | |
260 | ||
261 | par = info->par; | |
262 | par->helper.funcs = &nouveau_fbcon_helper_funcs; | |
263 | par->helper.dev = dev; | |
264 | ret = drm_fb_helper_init_crtc_count(&par->helper, 2, 4); | |
265 | if (ret) | |
266 | goto out_unref; | |
267 | dev_priv->fbdev_info = info; | |
268 | ||
269 | strcpy(info->fix.id, "nouveaufb"); | |
a32ed69d MK |
270 | if (nouveau_nofbaccel) |
271 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED; | |
272 | else | |
273 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | | |
274 | FBINFO_HWACCEL_FILLRECT | | |
275 | FBINFO_HWACCEL_IMAGEBLIT; | |
6ee73861 BS |
276 | info->fbops = &nouveau_fbcon_ops; |
277 | info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset - | |
278 | dev_priv->vm_vram_base; | |
279 | info->fix.smem_len = size; | |
280 | ||
281 | info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo); | |
282 | info->screen_size = size; | |
283 | ||
284 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); | |
285 | drm_fb_helper_fill_var(info, fb, fb_width, fb_height); | |
286 | ||
287 | /* FIXME: we really shouldn't expose mmio space at all */ | |
288 | info->fix.mmio_start = pci_resource_start(dev->pdev, 1); | |
289 | info->fix.mmio_len = pci_resource_len(dev->pdev, 1); | |
290 | ||
291 | /* Set aperture base/size for vesafb takeover */ | |
292 | #if defined(__i386__) || defined(__x86_64__) | |
293 | if (nouveau_fbcon_has_vesafb_or_efifb(dev)) { | |
294 | /* Some NVIDIA VBIOS' are stupid and decide to put the | |
295 | * framebuffer in the middle of the PRAMIN BAR for | |
296 | * whatever reason. We need to know the exact lfb_base | |
297 | * to get vesafb kicked off, and the only reliable way | |
298 | * we have left is to find out lfb_base the same way | |
299 | * vesafb did. | |
300 | */ | |
301 | info->aperture_base = screen_info.lfb_base; | |
302 | info->aperture_size = screen_info.lfb_size; | |
303 | if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) | |
304 | info->aperture_size *= 65536; | |
305 | } else | |
306 | #endif | |
307 | { | |
308 | info->aperture_base = info->fix.mmio_start; | |
309 | info->aperture_size = info->fix.mmio_len; | |
310 | } | |
311 | ||
312 | info->pixmap.size = 64*1024; | |
313 | info->pixmap.buf_align = 8; | |
314 | info->pixmap.access_align = 32; | |
315 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
316 | info->pixmap.scan_align = 1; | |
317 | ||
318 | fb->fbdev = info; | |
319 | ||
320 | par->nouveau_fb = nouveau_fb; | |
321 | par->dev = dev; | |
322 | ||
a32ed69d | 323 | if (dev_priv->channel && !nouveau_nofbaccel) { |
0735f62e BS |
324 | switch (dev_priv->card_type) { |
325 | case NV_50: | |
326 | nv50_fbcon_accel_init(info); | |
327 | break; | |
328 | default: | |
329 | nv04_fbcon_accel_init(info); | |
330 | break; | |
331 | }; | |
332 | } | |
6ee73861 BS |
333 | |
334 | nouveau_fbcon_zfill(dev); | |
335 | ||
336 | /* To allow resizeing without swapping buffers */ | |
337 | NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n", | |
338 | nouveau_fb->base.width, | |
339 | nouveau_fb->base.height, | |
340 | nvbo->bo.offset, nvbo); | |
341 | ||
342 | mutex_unlock(&dev->struct_mutex); | |
343 | return 0; | |
344 | ||
345 | out_unref: | |
346 | mutex_unlock(&dev->struct_mutex); | |
347 | out: | |
348 | return ret; | |
349 | } | |
350 | ||
351 | int | |
352 | nouveau_fbcon_probe(struct drm_device *dev) | |
353 | { | |
ef2bb506 | 354 | NV_DEBUG_KMS(dev, "\n"); |
6ee73861 BS |
355 | |
356 | return drm_fb_helper_single_fb_probe(dev, 32, nouveau_fbcon_create); | |
357 | } | |
358 | ||
359 | int | |
360 | nouveau_fbcon_remove(struct drm_device *dev, struct drm_framebuffer *fb) | |
361 | { | |
362 | struct nouveau_framebuffer *nouveau_fb = nouveau_framebuffer(fb); | |
363 | struct fb_info *info; | |
364 | ||
365 | if (!fb) | |
366 | return -EINVAL; | |
367 | ||
368 | info = fb->fbdev; | |
369 | if (info) { | |
370 | struct nouveau_fbcon_par *par = info->par; | |
371 | ||
372 | unregister_framebuffer(info); | |
373 | nouveau_bo_unmap(nouveau_fb->nvbo); | |
374 | mutex_lock(&dev->struct_mutex); | |
375 | drm_gem_object_unreference(nouveau_fb->nvbo->gem); | |
376 | nouveau_fb->nvbo = NULL; | |
377 | mutex_unlock(&dev->struct_mutex); | |
378 | if (par) | |
379 | drm_fb_helper_free(&par->helper); | |
380 | framebuffer_release(info); | |
381 | } | |
382 | ||
383 | return 0; | |
384 | } | |
846975a9 MS |
385 | |
386 | void nouveau_fbcon_gpu_lockup(struct fb_info *info) | |
387 | { | |
388 | struct nouveau_fbcon_par *par = info->par; | |
389 | struct drm_device *dev = par->dev; | |
390 | ||
391 | NV_ERROR(dev, "GPU lockup - switching to software fbcon\n"); | |
392 | info->flags |= FBINFO_HWACCEL_DISABLED; | |
393 | } |