]>
Commit | Line | Data |
---|---|---|
771fe6b9 JG |
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 | * Modularization | |
28 | */ | |
29 | ||
30 | #include <linux/module.h> | |
31 | #include <linux/kernel.h> | |
32 | #include <linux/errno.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/mm.h> | |
35 | #include <linux/tty.h> | |
36 | #include <linux/slab.h> | |
37 | #include <linux/delay.h> | |
38 | #include <linux/fb.h> | |
39 | #include <linux/init.h> | |
40 | ||
41 | #include "drmP.h" | |
42 | #include "drm.h" | |
43 | #include "drm_crtc.h" | |
44 | #include "drm_crtc_helper.h" | |
45 | #include "radeon_drm.h" | |
46 | #include "radeon.h" | |
47 | ||
48 | struct radeon_fb_device { | |
49 | struct radeon_device *rdev; | |
50 | struct drm_display_mode *mode; | |
51 | struct radeon_framebuffer *rfb; | |
52 | int crtc_count; | |
53 | /* crtc currently bound to this */ | |
54 | uint32_t crtc_ids[2]; | |
55 | }; | |
56 | ||
57 | static int radeonfb_setcolreg(unsigned regno, | |
58 | unsigned red, | |
59 | unsigned green, | |
60 | unsigned blue, | |
61 | unsigned transp, | |
62 | struct fb_info *info) | |
63 | { | |
64 | struct radeon_fb_device *rfbdev = info->par; | |
65 | struct drm_device *dev = rfbdev->rdev->ddev; | |
66 | struct drm_crtc *crtc; | |
67 | int i; | |
68 | ||
69 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
70 | struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); | |
71 | struct drm_mode_set *modeset = &radeon_crtc->mode_set; | |
72 | struct drm_framebuffer *fb = modeset->fb; | |
73 | ||
74 | for (i = 0; i < rfbdev->crtc_count; i++) { | |
75 | if (crtc->base.id == rfbdev->crtc_ids[i]) { | |
76 | break; | |
77 | } | |
78 | } | |
79 | if (i == rfbdev->crtc_count) { | |
80 | continue; | |
81 | } | |
82 | if (regno > 255) { | |
83 | return 1; | |
84 | } | |
85 | if (fb->depth == 8) { | |
86 | radeon_crtc_fb_gamma_set(crtc, red, green, blue, regno); | |
87 | return 0; | |
88 | } | |
89 | ||
90 | if (regno < 16) { | |
91 | switch (fb->depth) { | |
92 | case 15: | |
93 | fb->pseudo_palette[regno] = ((red & 0xf800) >> 1) | | |
94 | ((green & 0xf800) >> 6) | | |
95 | ((blue & 0xf800) >> 11); | |
96 | break; | |
97 | case 16: | |
98 | fb->pseudo_palette[regno] = (red & 0xf800) | | |
99 | ((green & 0xfc00) >> 5) | | |
100 | ((blue & 0xf800) >> 11); | |
101 | break; | |
102 | case 24: | |
103 | case 32: | |
104 | fb->pseudo_palette[regno] = ((red & 0xff00) << 8) | | |
105 | (green & 0xff00) | | |
106 | ((blue & 0xff00) >> 8); | |
107 | break; | |
108 | } | |
109 | } | |
110 | } | |
111 | return 0; | |
112 | } | |
113 | ||
114 | static int radeonfb_check_var(struct fb_var_screeninfo *var, | |
115 | struct fb_info *info) | |
116 | { | |
117 | struct radeon_fb_device *rfbdev = info->par; | |
118 | struct radeon_framebuffer *rfb = rfbdev->rfb; | |
119 | struct drm_framebuffer *fb = &rfb->base; | |
120 | int depth; | |
121 | ||
122 | if (var->pixclock == -1 || !var->pixclock) { | |
123 | return -EINVAL; | |
124 | } | |
125 | /* Need to resize the fb object !!! */ | |
126 | if (var->xres > fb->width || var->yres > fb->height) { | |
127 | DRM_ERROR("Requested width/height is greater than current fb " | |
128 | "object %dx%d > %dx%d\n", var->xres, var->yres, | |
129 | fb->width, fb->height); | |
130 | DRM_ERROR("Need resizing code.\n"); | |
131 | return -EINVAL; | |
132 | } | |
133 | ||
134 | switch (var->bits_per_pixel) { | |
135 | case 16: | |
136 | depth = (var->green.length == 6) ? 16 : 15; | |
137 | break; | |
138 | case 32: | |
139 | depth = (var->transp.length > 0) ? 32 : 24; | |
140 | break; | |
141 | default: | |
142 | depth = var->bits_per_pixel; | |
143 | break; | |
144 | } | |
145 | ||
146 | switch (depth) { | |
147 | case 8: | |
148 | var->red.offset = 0; | |
149 | var->green.offset = 0; | |
150 | var->blue.offset = 0; | |
151 | var->red.length = 8; | |
152 | var->green.length = 8; | |
153 | var->blue.length = 8; | |
154 | var->transp.length = 0; | |
155 | var->transp.offset = 0; | |
156 | break; | |
157 | case 15: | |
158 | var->red.offset = 10; | |
159 | var->green.offset = 5; | |
160 | var->blue.offset = 0; | |
161 | var->red.length = 5; | |
162 | var->green.length = 5; | |
163 | var->blue.length = 5; | |
164 | var->transp.length = 1; | |
165 | var->transp.offset = 15; | |
166 | break; | |
167 | case 16: | |
168 | var->red.offset = 11; | |
169 | var->green.offset = 5; | |
170 | var->blue.offset = 0; | |
171 | var->red.length = 5; | |
172 | var->green.length = 6; | |
173 | var->blue.length = 5; | |
174 | var->transp.length = 0; | |
175 | var->transp.offset = 0; | |
176 | break; | |
177 | case 24: | |
178 | var->red.offset = 16; | |
179 | var->green.offset = 8; | |
180 | var->blue.offset = 0; | |
181 | var->red.length = 8; | |
182 | var->green.length = 8; | |
183 | var->blue.length = 8; | |
184 | var->transp.length = 0; | |
185 | var->transp.offset = 0; | |
186 | break; | |
187 | case 32: | |
188 | var->red.offset = 16; | |
189 | var->green.offset = 8; | |
190 | var->blue.offset = 0; | |
191 | var->red.length = 8; | |
192 | var->green.length = 8; | |
193 | var->blue.length = 8; | |
194 | var->transp.length = 8; | |
195 | var->transp.offset = 24; | |
196 | break; | |
197 | default: | |
198 | return -EINVAL; | |
199 | } | |
200 | return 0; | |
201 | } | |
202 | ||
203 | /* this will let fbcon do the mode init */ | |
204 | static int radeonfb_set_par(struct fb_info *info) | |
205 | { | |
206 | struct radeon_fb_device *rfbdev = info->par; | |
207 | struct drm_device *dev = rfbdev->rdev->ddev; | |
208 | struct fb_var_screeninfo *var = &info->var; | |
209 | struct drm_crtc *crtc; | |
210 | int ret; | |
211 | int i; | |
212 | ||
213 | if (var->pixclock != -1) { | |
214 | DRM_ERROR("PIXEL CLCOK SET\n"); | |
215 | return -EINVAL; | |
216 | } | |
217 | ||
218 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
219 | struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); | |
220 | ||
221 | for (i = 0; i < rfbdev->crtc_count; i++) { | |
222 | if (crtc->base.id == rfbdev->crtc_ids[i]) { | |
223 | break; | |
224 | } | |
225 | } | |
226 | if (i == rfbdev->crtc_count) { | |
227 | continue; | |
228 | } | |
229 | if (crtc->fb == radeon_crtc->mode_set.fb) { | |
230 | mutex_lock(&dev->mode_config.mutex); | |
231 | ret = crtc->funcs->set_config(&radeon_crtc->mode_set); | |
232 | mutex_unlock(&dev->mode_config.mutex); | |
233 | if (ret) { | |
234 | return ret; | |
235 | } | |
236 | } | |
237 | } | |
238 | return 0; | |
239 | } | |
240 | ||
241 | static int radeonfb_pan_display(struct fb_var_screeninfo *var, | |
242 | struct fb_info *info) | |
243 | { | |
244 | struct radeon_fb_device *rfbdev = info->par; | |
245 | struct drm_device *dev = rfbdev->rdev->ddev; | |
246 | struct drm_mode_set *modeset; | |
247 | struct drm_crtc *crtc; | |
248 | struct radeon_crtc *radeon_crtc; | |
249 | int ret = 0; | |
250 | int i; | |
251 | ||
252 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
253 | for (i = 0; i < rfbdev->crtc_count; i++) { | |
254 | if (crtc->base.id == rfbdev->crtc_ids[i]) { | |
255 | break; | |
256 | } | |
257 | } | |
258 | ||
259 | if (i == rfbdev->crtc_count) { | |
260 | continue; | |
261 | } | |
262 | ||
263 | radeon_crtc = to_radeon_crtc(crtc); | |
264 | modeset = &radeon_crtc->mode_set; | |
265 | ||
266 | modeset->x = var->xoffset; | |
267 | modeset->y = var->yoffset; | |
268 | ||
269 | if (modeset->num_connectors) { | |
270 | mutex_lock(&dev->mode_config.mutex); | |
271 | ret = crtc->funcs->set_config(modeset); | |
272 | mutex_unlock(&dev->mode_config.mutex); | |
273 | if (!ret) { | |
274 | info->var.xoffset = var->xoffset; | |
275 | info->var.yoffset = var->yoffset; | |
276 | } | |
277 | } | |
278 | } | |
279 | return ret; | |
280 | } | |
281 | ||
282 | static void radeonfb_on(struct fb_info *info) | |
283 | { | |
284 | struct radeon_fb_device *rfbdev = info->par; | |
285 | struct drm_device *dev = rfbdev->rdev->ddev; | |
286 | struct drm_crtc *crtc; | |
287 | struct drm_encoder *encoder; | |
288 | int i; | |
289 | ||
290 | /* | |
291 | * For each CRTC in this fb, find all associated encoders | |
292 | * and turn them off, then turn off the CRTC. | |
293 | */ | |
294 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
295 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
296 | ||
297 | for (i = 0; i < rfbdev->crtc_count; i++) { | |
298 | if (crtc->base.id == rfbdev->crtc_ids[i]) { | |
299 | break; | |
300 | } | |
301 | } | |
302 | ||
303 | mutex_lock(&dev->mode_config.mutex); | |
304 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); | |
305 | mutex_unlock(&dev->mode_config.mutex); | |
306 | ||
307 | /* Found a CRTC on this fb, now find encoders */ | |
308 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
309 | if (encoder->crtc == crtc) { | |
310 | struct drm_encoder_helper_funcs *encoder_funcs; | |
311 | ||
312 | encoder_funcs = encoder->helper_private; | |
313 | mutex_lock(&dev->mode_config.mutex); | |
314 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); | |
315 | mutex_unlock(&dev->mode_config.mutex); | |
316 | } | |
317 | } | |
318 | } | |
319 | } | |
320 | ||
321 | static void radeonfb_off(struct fb_info *info, int dpms_mode) | |
322 | { | |
323 | struct radeon_fb_device *rfbdev = info->par; | |
324 | struct drm_device *dev = rfbdev->rdev->ddev; | |
325 | struct drm_crtc *crtc; | |
326 | struct drm_encoder *encoder; | |
327 | int i; | |
328 | ||
329 | /* | |
330 | * For each CRTC in this fb, find all associated encoders | |
331 | * and turn them off, then turn off the CRTC. | |
332 | */ | |
333 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
334 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
335 | ||
336 | for (i = 0; i < rfbdev->crtc_count; i++) { | |
337 | if (crtc->base.id == rfbdev->crtc_ids[i]) { | |
338 | break; | |
339 | } | |
340 | } | |
341 | ||
342 | /* Found a CRTC on this fb, now find encoders */ | |
343 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
344 | if (encoder->crtc == crtc) { | |
345 | struct drm_encoder_helper_funcs *encoder_funcs; | |
346 | ||
347 | encoder_funcs = encoder->helper_private; | |
348 | mutex_lock(&dev->mode_config.mutex); | |
349 | encoder_funcs->dpms(encoder, dpms_mode); | |
350 | mutex_unlock(&dev->mode_config.mutex); | |
351 | } | |
352 | } | |
353 | if (dpms_mode == DRM_MODE_DPMS_OFF) { | |
354 | mutex_lock(&dev->mode_config.mutex); | |
355 | crtc_funcs->dpms(crtc, dpms_mode); | |
356 | mutex_unlock(&dev->mode_config.mutex); | |
357 | } | |
358 | } | |
359 | } | |
360 | ||
361 | int radeonfb_blank(int blank, struct fb_info *info) | |
362 | { | |
363 | switch (blank) { | |
364 | case FB_BLANK_UNBLANK: | |
365 | radeonfb_on(info); | |
366 | break; | |
367 | case FB_BLANK_NORMAL: | |
368 | radeonfb_off(info, DRM_MODE_DPMS_STANDBY); | |
369 | break; | |
370 | case FB_BLANK_HSYNC_SUSPEND: | |
371 | radeonfb_off(info, DRM_MODE_DPMS_STANDBY); | |
372 | break; | |
373 | case FB_BLANK_VSYNC_SUSPEND: | |
374 | radeonfb_off(info, DRM_MODE_DPMS_SUSPEND); | |
375 | break; | |
376 | case FB_BLANK_POWERDOWN: | |
377 | radeonfb_off(info, DRM_MODE_DPMS_OFF); | |
378 | break; | |
379 | } | |
380 | return 0; | |
381 | } | |
382 | ||
383 | static struct fb_ops radeonfb_ops = { | |
384 | .owner = THIS_MODULE, | |
385 | .fb_check_var = radeonfb_check_var, | |
386 | .fb_set_par = radeonfb_set_par, | |
387 | .fb_setcolreg = radeonfb_setcolreg, | |
388 | .fb_fillrect = cfb_fillrect, | |
389 | .fb_copyarea = cfb_copyarea, | |
390 | .fb_imageblit = cfb_imageblit, | |
391 | .fb_pan_display = radeonfb_pan_display, | |
392 | .fb_blank = radeonfb_blank, | |
393 | }; | |
394 | ||
395 | /** | |
396 | * Curretly it is assumed that the old framebuffer is reused. | |
397 | * | |
398 | * LOCKING | |
399 | * caller should hold the mode config lock. | |
400 | * | |
401 | */ | |
402 | int radeonfb_resize(struct drm_device *dev, struct drm_crtc *crtc) | |
403 | { | |
404 | struct fb_info *info; | |
405 | struct drm_framebuffer *fb; | |
406 | struct drm_display_mode *mode = crtc->desired_mode; | |
407 | ||
408 | fb = crtc->fb; | |
409 | if (fb == NULL) { | |
410 | return 1; | |
411 | } | |
412 | info = fb->fbdev; | |
413 | if (info == NULL) { | |
414 | return 1; | |
415 | } | |
416 | if (mode == NULL) { | |
417 | return 1; | |
418 | } | |
419 | info->var.xres = mode->hdisplay; | |
420 | info->var.right_margin = mode->hsync_start - mode->hdisplay; | |
421 | info->var.hsync_len = mode->hsync_end - mode->hsync_start; | |
422 | info->var.left_margin = mode->htotal - mode->hsync_end; | |
423 | info->var.yres = mode->vdisplay; | |
424 | info->var.lower_margin = mode->vsync_start - mode->vdisplay; | |
425 | info->var.vsync_len = mode->vsync_end - mode->vsync_start; | |
426 | info->var.upper_margin = mode->vtotal - mode->vsync_end; | |
427 | info->var.pixclock = 10000000 / mode->htotal * 1000 / mode->vtotal * 100; | |
428 | /* avoid overflow */ | |
429 | info->var.pixclock = info->var.pixclock * 1000 / mode->vrefresh; | |
430 | ||
431 | return 0; | |
432 | } | |
433 | EXPORT_SYMBOL(radeonfb_resize); | |
434 | ||
435 | static struct drm_mode_set panic_mode; | |
436 | ||
437 | int radeonfb_panic(struct notifier_block *n, unsigned long ununsed, | |
438 | void *panic_str) | |
439 | { | |
440 | DRM_ERROR("panic occurred, switching back to text console\n"); | |
441 | drm_crtc_helper_set_config(&panic_mode); | |
442 | return 0; | |
443 | } | |
444 | EXPORT_SYMBOL(radeonfb_panic); | |
445 | ||
446 | static struct notifier_block paniced = { | |
447 | .notifier_call = radeonfb_panic, | |
448 | }; | |
449 | ||
450 | static int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp) | |
451 | { | |
452 | int aligned = width; | |
453 | int align_large = (ASIC_IS_AVIVO(rdev)); | |
454 | int pitch_mask = 0; | |
455 | ||
456 | switch (bpp / 8) { | |
457 | case 1: | |
458 | pitch_mask = align_large ? 255 : 127; | |
459 | break; | |
460 | case 2: | |
461 | pitch_mask = align_large ? 127 : 31; | |
462 | break; | |
463 | case 3: | |
464 | case 4: | |
465 | pitch_mask = align_large ? 63 : 15; | |
466 | break; | |
467 | } | |
468 | ||
469 | aligned += pitch_mask; | |
470 | aligned &= ~pitch_mask; | |
471 | return aligned; | |
472 | } | |
473 | ||
474 | int radeonfb_create(struct radeon_device *rdev, | |
475 | uint32_t fb_width, uint32_t fb_height, | |
476 | uint32_t surface_width, uint32_t surface_height, | |
477 | struct radeon_framebuffer **rfb_p) | |
478 | { | |
479 | struct fb_info *info; | |
480 | struct radeon_fb_device *rfbdev; | |
481 | struct drm_framebuffer *fb; | |
482 | struct radeon_framebuffer *rfb; | |
483 | struct drm_mode_fb_cmd mode_cmd; | |
484 | struct drm_gem_object *gobj = NULL; | |
485 | struct radeon_object *robj = NULL; | |
486 | struct device *device = &rdev->pdev->dev; | |
487 | int size, aligned_size, ret; | |
488 | void *fbptr = NULL; | |
489 | ||
490 | mode_cmd.width = surface_width; | |
491 | mode_cmd.height = surface_height; | |
492 | mode_cmd.bpp = 32; | |
493 | /* need to align pitch with crtc limits */ | |
494 | mode_cmd.pitch = radeon_align_pitch(rdev, mode_cmd.width, mode_cmd.bpp) * ((mode_cmd.bpp + 1) / 8); | |
495 | mode_cmd.depth = 24; | |
496 | ||
497 | size = mode_cmd.pitch * mode_cmd.height; | |
498 | aligned_size = ALIGN(size, PAGE_SIZE); | |
499 | ||
500 | ret = radeon_gem_object_create(rdev, aligned_size, 0, | |
501 | RADEON_GEM_DOMAIN_VRAM, | |
502 | false, ttm_bo_type_kernel, | |
503 | false, &gobj); | |
504 | if (ret) { | |
505 | printk(KERN_ERR "failed to allocate framebuffer\n"); | |
506 | ret = -ENOMEM; | |
507 | goto out; | |
508 | } | |
509 | robj = gobj->driver_private; | |
510 | ||
511 | mutex_lock(&rdev->ddev->struct_mutex); | |
512 | fb = radeon_framebuffer_create(rdev->ddev, &mode_cmd, gobj); | |
513 | if (fb == NULL) { | |
514 | DRM_ERROR("failed to allocate fb.\n"); | |
515 | ret = -ENOMEM; | |
516 | goto out_unref; | |
517 | } | |
518 | ||
519 | list_add(&fb->filp_head, &rdev->ddev->mode_config.fb_kernel_list); | |
520 | ||
521 | rfb = to_radeon_framebuffer(fb); | |
522 | *rfb_p = rfb; | |
523 | rdev->fbdev_rfb = rfb; | |
524 | ||
525 | info = framebuffer_alloc(sizeof(struct radeon_fb_device), device); | |
526 | if (info == NULL) { | |
527 | ret = -ENOMEM; | |
528 | goto out_unref; | |
529 | } | |
530 | rfbdev = info->par; | |
531 | ||
532 | ret = radeon_object_kmap(robj, &fbptr); | |
533 | if (ret) { | |
534 | goto out_unref; | |
535 | } | |
536 | ||
537 | strcpy(info->fix.id, "radeondrmfb"); | |
538 | info->fix.type = FB_TYPE_PACKED_PIXELS; | |
539 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
540 | info->fix.type_aux = 0; | |
541 | info->fix.xpanstep = 1; /* doing it in hw */ | |
542 | info->fix.ypanstep = 1; /* doing it in hw */ | |
543 | info->fix.ywrapstep = 0; | |
544 | info->fix.accel = FB_ACCEL_I830; | |
545 | info->fix.type_aux = 0; | |
546 | info->flags = FBINFO_DEFAULT; | |
547 | info->fbops = &radeonfb_ops; | |
548 | info->fix.line_length = fb->pitch; | |
549 | info->screen_base = fbptr; | |
550 | info->fix.smem_start = (unsigned long)fbptr; | |
551 | info->fix.smem_len = size; | |
552 | info->screen_base = fbptr; | |
553 | info->screen_size = size; | |
554 | info->pseudo_palette = fb->pseudo_palette; | |
555 | info->var.xres_virtual = fb->width; | |
556 | info->var.yres_virtual = fb->height; | |
557 | info->var.bits_per_pixel = fb->bits_per_pixel; | |
558 | info->var.xoffset = 0; | |
559 | info->var.yoffset = 0; | |
560 | info->var.activate = FB_ACTIVATE_NOW; | |
561 | info->var.height = -1; | |
562 | info->var.width = -1; | |
563 | info->var.xres = fb_width; | |
564 | info->var.yres = fb_height; | |
565 | info->fix.mmio_start = pci_resource_start(rdev->pdev, 2); | |
566 | info->fix.mmio_len = pci_resource_len(rdev->pdev, 2); | |
567 | info->pixmap.size = 64*1024; | |
568 | info->pixmap.buf_align = 8; | |
569 | info->pixmap.access_align = 32; | |
570 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
571 | info->pixmap.scan_align = 1; | |
572 | if (info->screen_base == NULL) { | |
573 | ret = -ENOSPC; | |
574 | goto out_unref; | |
575 | } | |
576 | DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start); | |
577 | DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base); | |
578 | DRM_INFO("size %lu\n", (unsigned long)size); | |
579 | DRM_INFO("fb depth is %d\n", fb->depth); | |
580 | DRM_INFO(" pitch is %d\n", fb->pitch); | |
581 | ||
582 | switch (fb->depth) { | |
583 | case 8: | |
584 | info->var.red.offset = 0; | |
585 | info->var.green.offset = 0; | |
586 | info->var.blue.offset = 0; | |
587 | info->var.red.length = 8; /* 8bit DAC */ | |
588 | info->var.green.length = 8; | |
589 | info->var.blue.length = 8; | |
590 | info->var.transp.offset = 0; | |
591 | info->var.transp.length = 0; | |
592 | break; | |
593 | case 15: | |
594 | info->var.red.offset = 10; | |
595 | info->var.green.offset = 5; | |
596 | info->var.blue.offset = 0; | |
597 | info->var.red.length = 5; | |
598 | info->var.green.length = 5; | |
599 | info->var.blue.length = 5; | |
600 | info->var.transp.offset = 15; | |
601 | info->var.transp.length = 1; | |
602 | break; | |
603 | case 16: | |
604 | info->var.red.offset = 11; | |
605 | info->var.green.offset = 5; | |
606 | info->var.blue.offset = 0; | |
607 | info->var.red.length = 5; | |
608 | info->var.green.length = 6; | |
609 | info->var.blue.length = 5; | |
610 | info->var.transp.offset = 0; | |
611 | break; | |
612 | case 24: | |
613 | info->var.red.offset = 16; | |
614 | info->var.green.offset = 8; | |
615 | info->var.blue.offset = 0; | |
616 | info->var.red.length = 8; | |
617 | info->var.green.length = 8; | |
618 | info->var.blue.length = 8; | |
619 | info->var.transp.offset = 0; | |
620 | info->var.transp.length = 0; | |
621 | break; | |
622 | case 32: | |
623 | info->var.red.offset = 16; | |
624 | info->var.green.offset = 8; | |
625 | info->var.blue.offset = 0; | |
626 | info->var.red.length = 8; | |
627 | info->var.green.length = 8; | |
628 | info->var.blue.length = 8; | |
629 | info->var.transp.offset = 24; | |
630 | info->var.transp.length = 8; | |
631 | break; | |
632 | default: | |
633 | break; | |
634 | } | |
635 | ||
636 | fb->fbdev = info; | |
637 | rfbdev->rfb = rfb; | |
638 | rfbdev->rdev = rdev; | |
639 | ||
640 | mutex_unlock(&rdev->ddev->struct_mutex); | |
641 | return 0; | |
642 | ||
643 | out_unref: | |
644 | if (robj) { | |
645 | radeon_object_kunmap(robj); | |
646 | } | |
647 | if (ret) { | |
648 | list_del(&fb->filp_head); | |
649 | drm_gem_object_unreference(gobj); | |
650 | drm_framebuffer_cleanup(fb); | |
651 | kfree(fb); | |
652 | } | |
653 | drm_gem_object_unreference(gobj); | |
654 | mutex_unlock(&rdev->ddev->struct_mutex); | |
655 | out: | |
656 | return ret; | |
657 | } | |
658 | ||
659 | static int radeonfb_single_fb_probe(struct radeon_device *rdev) | |
660 | { | |
661 | struct drm_crtc *crtc; | |
662 | struct drm_connector *connector; | |
663 | unsigned int fb_width = (unsigned)-1, fb_height = (unsigned)-1; | |
664 | unsigned int surface_width = 0, surface_height = 0; | |
665 | int new_fb = 0; | |
666 | int crtc_count = 0; | |
667 | int ret, i, conn_count = 0; | |
668 | struct radeon_framebuffer *rfb; | |
669 | struct fb_info *info; | |
670 | struct radeon_fb_device *rfbdev; | |
671 | struct drm_mode_set *modeset = NULL; | |
672 | ||
673 | /* first up get a count of crtcs now in use and new min/maxes width/heights */ | |
674 | list_for_each_entry(crtc, &rdev->ddev->mode_config.crtc_list, head) { | |
675 | if (drm_helper_crtc_in_use(crtc)) { | |
676 | if (crtc->desired_mode) { | |
677 | if (crtc->desired_mode->hdisplay < fb_width) | |
678 | fb_width = crtc->desired_mode->hdisplay; | |
679 | ||
680 | if (crtc->desired_mode->vdisplay < fb_height) | |
681 | fb_height = crtc->desired_mode->vdisplay; | |
682 | ||
683 | if (crtc->desired_mode->hdisplay > surface_width) | |
684 | surface_width = crtc->desired_mode->hdisplay; | |
685 | ||
686 | if (crtc->desired_mode->vdisplay > surface_height) | |
687 | surface_height = crtc->desired_mode->vdisplay; | |
688 | } | |
689 | crtc_count++; | |
690 | } | |
691 | } | |
692 | ||
693 | if (crtc_count == 0 || fb_width == -1 || fb_height == -1) { | |
694 | /* hmm everyone went away - assume VGA cable just fell out | |
695 | and will come back later. */ | |
696 | return 0; | |
697 | } | |
698 | ||
699 | /* do we have an fb already? */ | |
700 | if (list_empty(&rdev->ddev->mode_config.fb_kernel_list)) { | |
701 | /* create an fb if we don't have one */ | |
702 | ret = radeonfb_create(rdev, fb_width, fb_height, surface_width, surface_height, &rfb); | |
703 | if (ret) { | |
704 | return -EINVAL; | |
705 | } | |
706 | new_fb = 1; | |
707 | } else { | |
708 | struct drm_framebuffer *fb; | |
709 | fb = list_first_entry(&rdev->ddev->mode_config.fb_kernel_list, struct drm_framebuffer, filp_head); | |
710 | rfb = to_radeon_framebuffer(fb); | |
711 | ||
712 | /* if someone hotplugs something bigger than we have already allocated, we are pwned. | |
713 | As really we can't resize an fbdev that is in the wild currently due to fbdev | |
714 | not really being designed for the lower layers moving stuff around under it. | |
715 | - so in the grand style of things - punt. */ | |
716 | if ((fb->width < surface_width) || (fb->height < surface_height)) { | |
717 | DRM_ERROR("Framebuffer not large enough to scale console onto.\n"); | |
718 | return -EINVAL; | |
719 | } | |
720 | } | |
721 | ||
722 | info = rfb->base.fbdev; | |
723 | rdev->fbdev_info = info; | |
724 | rfbdev = info->par; | |
725 | ||
726 | crtc_count = 0; | |
727 | /* okay we need to setup new connector sets in the crtcs */ | |
728 | list_for_each_entry(crtc, &rdev->ddev->mode_config.crtc_list, head) { | |
729 | struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); | |
730 | modeset = &radeon_crtc->mode_set; | |
731 | modeset->fb = &rfb->base; | |
732 | conn_count = 0; | |
733 | list_for_each_entry(connector, &rdev->ddev->mode_config.connector_list, head) { | |
734 | if (connector->encoder) | |
735 | if (connector->encoder->crtc == modeset->crtc) { | |
736 | modeset->connectors[conn_count] = connector; | |
737 | conn_count++; | |
738 | if (conn_count > RADEONFB_CONN_LIMIT) | |
739 | BUG(); | |
740 | } | |
741 | } | |
742 | ||
743 | for (i = conn_count; i < RADEONFB_CONN_LIMIT; i++) | |
744 | modeset->connectors[i] = NULL; | |
745 | ||
746 | ||
747 | rfbdev->crtc_ids[crtc_count++] = crtc->base.id; | |
748 | ||
749 | modeset->num_connectors = conn_count; | |
750 | if (modeset->crtc->desired_mode) { | |
751 | if (modeset->mode) { | |
752 | drm_mode_destroy(rdev->ddev, modeset->mode); | |
753 | } | |
754 | modeset->mode = drm_mode_duplicate(rdev->ddev, | |
755 | modeset->crtc->desired_mode); | |
756 | } | |
757 | } | |
758 | rfbdev->crtc_count = crtc_count; | |
759 | ||
760 | if (new_fb) { | |
761 | info->var.pixclock = -1; | |
762 | if (register_framebuffer(info) < 0) | |
763 | return -EINVAL; | |
764 | } else { | |
765 | radeonfb_set_par(info); | |
766 | } | |
767 | printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, | |
768 | info->fix.id); | |
769 | ||
770 | /* Switch back to kernel console on panic */ | |
771 | panic_mode = *modeset; | |
772 | atomic_notifier_chain_register(&panic_notifier_list, &paniced); | |
773 | printk(KERN_INFO "registered panic notifier\n"); | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
778 | int radeonfb_probe(struct drm_device *dev) | |
779 | { | |
780 | int ret; | |
781 | ||
782 | /* something has changed in the lower levels of hell - deal with it | |
783 | here */ | |
784 | ||
785 | /* two modes : a) 1 fb to rule all crtcs. | |
786 | b) one fb per crtc. | |
787 | two actions 1) new connected device | |
788 | 2) device removed. | |
789 | case a/1 : if the fb surface isn't big enough - resize the surface fb. | |
790 | if the fb size isn't big enough - resize fb into surface. | |
791 | if everything big enough configure the new crtc/etc. | |
792 | case a/2 : undo the configuration | |
793 | possibly resize down the fb to fit the new configuration. | |
794 | case b/1 : see if it is on a new crtc - setup a new fb and add it. | |
795 | case b/2 : teardown the new fb. | |
796 | */ | |
797 | ret = radeonfb_single_fb_probe(dev->dev_private); | |
798 | return ret; | |
799 | } | |
800 | EXPORT_SYMBOL(radeonfb_probe); | |
801 | ||
802 | int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb) | |
803 | { | |
804 | struct fb_info *info; | |
805 | struct radeon_framebuffer *rfb = to_radeon_framebuffer(fb); | |
806 | struct radeon_object *robj; | |
807 | ||
808 | if (!fb) { | |
809 | return -EINVAL; | |
810 | } | |
811 | info = fb->fbdev; | |
812 | if (info) { | |
813 | robj = rfb->obj->driver_private; | |
814 | unregister_framebuffer(info); | |
815 | radeon_object_kunmap(robj); | |
816 | framebuffer_release(info); | |
817 | } | |
818 | ||
819 | printk(KERN_INFO "unregistered panic notifier\n"); | |
820 | atomic_notifier_chain_unregister(&panic_notifier_list, &paniced); | |
821 | memset(&panic_mode, 0, sizeof(struct drm_mode_set)); | |
822 | return 0; | |
823 | } | |
824 | EXPORT_SYMBOL(radeonfb_remove); | |
825 | MODULE_LICENSE("GPL"); |