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f64122c1 DA |
1 | /* |
2 | * Copyright © 2013 Red Hat | |
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 | #include <linux/module.h> | |
f64122c1 DA |
27 | |
28 | #include "drmP.h" | |
29 | #include "drm/drm.h" | |
30 | #include "drm/drm_crtc.h" | |
31 | #include "drm/drm_crtc_helper.h" | |
32 | #include "qxl_drv.h" | |
33 | ||
34 | #include "qxl_object.h" | |
35 | #include "drm_fb_helper.h" | |
36 | ||
37 | #define QXL_DIRTY_DELAY (HZ / 30) | |
38 | ||
39 | struct qxl_fbdev { | |
40 | struct drm_fb_helper helper; | |
41 | struct qxl_framebuffer qfb; | |
f64122c1 DA |
42 | struct qxl_device *qdev; |
43 | ||
0665f9f8 DA |
44 | spinlock_t delayed_ops_lock; |
45 | struct list_head delayed_ops; | |
f64122c1 DA |
46 | void *shadow; |
47 | int size; | |
f64122c1 DA |
48 | }; |
49 | ||
50 | static void qxl_fb_image_init(struct qxl_fb_image *qxl_fb_image, | |
51 | struct qxl_device *qdev, struct fb_info *info, | |
52 | const struct fb_image *image) | |
53 | { | |
54 | qxl_fb_image->qdev = qdev; | |
55 | if (info) { | |
56 | qxl_fb_image->visual = info->fix.visual; | |
57 | if (qxl_fb_image->visual == FB_VISUAL_TRUECOLOR || | |
58 | qxl_fb_image->visual == FB_VISUAL_DIRECTCOLOR) | |
59 | memcpy(&qxl_fb_image->pseudo_palette, | |
60 | info->pseudo_palette, | |
61 | sizeof(qxl_fb_image->pseudo_palette)); | |
62 | } else { | |
63 | /* fallback */ | |
64 | if (image->depth == 1) | |
65 | qxl_fb_image->visual = FB_VISUAL_MONO10; | |
66 | else | |
67 | qxl_fb_image->visual = FB_VISUAL_DIRECTCOLOR; | |
68 | } | |
69 | if (image) { | |
70 | memcpy(&qxl_fb_image->fb_image, image, | |
71 | sizeof(qxl_fb_image->fb_image)); | |
72 | } | |
73 | } | |
74 | ||
0c756134 | 75 | #ifdef CONFIG_DRM_FBDEV_EMULATION |
6d01f1f5 | 76 | static struct fb_deferred_io qxl_defio = { |
f64122c1 | 77 | .delay = QXL_DIRTY_DELAY, |
6819c3c2 | 78 | .deferred_io = drm_fb_helper_deferred_io, |
f64122c1 | 79 | }; |
0c756134 | 80 | #endif |
f64122c1 | 81 | |
f64122c1 DA |
82 | static struct fb_ops qxlfb_ops = { |
83 | .owner = THIS_MODULE, | |
84 | .fb_check_var = drm_fb_helper_check_var, | |
85 | .fb_set_par = drm_fb_helper_set_par, /* TODO: copy vmwgfx */ | |
6819c3c2 NT |
86 | .fb_fillrect = drm_fb_helper_sys_fillrect, |
87 | .fb_copyarea = drm_fb_helper_sys_copyarea, | |
88 | .fb_imageblit = drm_fb_helper_sys_imageblit, | |
f64122c1 DA |
89 | .fb_pan_display = drm_fb_helper_pan_display, |
90 | .fb_blank = drm_fb_helper_blank, | |
91 | .fb_setcmap = drm_fb_helper_setcmap, | |
92 | .fb_debug_enter = drm_fb_helper_debug_enter, | |
93 | .fb_debug_leave = drm_fb_helper_debug_leave, | |
94 | }; | |
95 | ||
96 | static void qxlfb_destroy_pinned_object(struct drm_gem_object *gobj) | |
97 | { | |
98 | struct qxl_bo *qbo = gem_to_qxl_bo(gobj); | |
99 | int ret; | |
100 | ||
101 | ret = qxl_bo_reserve(qbo, false); | |
102 | if (likely(ret == 0)) { | |
103 | qxl_bo_kunmap(qbo); | |
104 | qxl_bo_unpin(qbo); | |
105 | qxl_bo_unreserve(qbo); | |
106 | } | |
107 | drm_gem_object_unreference_unlocked(gobj); | |
108 | } | |
109 | ||
110 | int qxl_get_handle_for_primary_fb(struct qxl_device *qdev, | |
111 | struct drm_file *file_priv, | |
112 | uint32_t *handle) | |
113 | { | |
114 | int r; | |
115 | struct drm_gem_object *gobj = qdev->fbdev_qfb->obj; | |
116 | ||
117 | BUG_ON(!gobj); | |
118 | /* drm_get_handle_create adds a reference - good */ | |
119 | r = drm_gem_handle_create(file_priv, gobj, handle); | |
120 | if (r) | |
121 | return r; | |
122 | return 0; | |
123 | } | |
124 | ||
125 | static int qxlfb_create_pinned_object(struct qxl_fbdev *qfbdev, | |
1eb83451 | 126 | const struct drm_mode_fb_cmd2 *mode_cmd, |
f64122c1 DA |
127 | struct drm_gem_object **gobj_p) |
128 | { | |
129 | struct qxl_device *qdev = qfbdev->qdev; | |
130 | struct drm_gem_object *gobj = NULL; | |
131 | struct qxl_bo *qbo = NULL; | |
132 | int ret; | |
133 | int aligned_size, size; | |
134 | int height = mode_cmd->height; | |
f64122c1 DA |
135 | |
136 | size = mode_cmd->pitches[0] * height; | |
137 | aligned_size = ALIGN(size, PAGE_SIZE); | |
138 | /* TODO: unallocate and reallocate surface0 for real. Hack to just | |
139 | * have a large enough surface0 for 1024x768 Xorg 32bpp mode */ | |
140 | ret = qxl_gem_object_create(qdev, aligned_size, 0, | |
141 | QXL_GEM_DOMAIN_SURFACE, | |
142 | false, /* is discardable */ | |
143 | false, /* is kernel (false means device) */ | |
144 | NULL, | |
145 | &gobj); | |
146 | if (ret) { | |
147 | pr_err("failed to allocate framebuffer (%d)\n", | |
148 | aligned_size); | |
149 | return -ENOMEM; | |
150 | } | |
151 | qbo = gem_to_qxl_bo(gobj); | |
152 | ||
153 | qbo->surf.width = mode_cmd->width; | |
154 | qbo->surf.height = mode_cmd->height; | |
155 | qbo->surf.stride = mode_cmd->pitches[0]; | |
156 | qbo->surf.format = SPICE_SURFACE_FMT_32_xRGB; | |
157 | ret = qxl_bo_reserve(qbo, false); | |
158 | if (unlikely(ret != 0)) | |
159 | goto out_unref; | |
160 | ret = qxl_bo_pin(qbo, QXL_GEM_DOMAIN_SURFACE, NULL); | |
161 | if (ret) { | |
162 | qxl_bo_unreserve(qbo); | |
163 | goto out_unref; | |
164 | } | |
165 | ret = qxl_bo_kmap(qbo, NULL); | |
166 | qxl_bo_unreserve(qbo); /* unreserve, will be mmaped */ | |
167 | if (ret) | |
168 | goto out_unref; | |
169 | ||
170 | *gobj_p = gobj; | |
171 | return 0; | |
172 | out_unref: | |
173 | qxlfb_destroy_pinned_object(gobj); | |
174 | *gobj_p = NULL; | |
175 | return ret; | |
176 | } | |
177 | ||
6819c3c2 NT |
178 | /* |
179 | * FIXME | |
180 | * It should not be necessary to have a special dirty() callback for fbdev. | |
181 | */ | |
182 | static int qxlfb_framebuffer_dirty(struct drm_framebuffer *fb, | |
183 | struct drm_file *file_priv, | |
184 | unsigned flags, unsigned color, | |
185 | struct drm_clip_rect *clips, | |
186 | unsigned num_clips) | |
187 | { | |
188 | struct qxl_device *qdev = fb->dev->dev_private; | |
189 | struct fb_info *info = qdev->fbdev_info; | |
190 | struct qxl_fbdev *qfbdev = info->par; | |
191 | struct qxl_fb_image qxl_fb_image; | |
192 | struct fb_image *image = &qxl_fb_image.fb_image; | |
193 | ||
194 | /* TODO: hard coding 32 bpp */ | |
195 | int stride = qfbdev->qfb.base.pitches[0]; | |
196 | ||
197 | /* | |
198 | * we are using a shadow draw buffer, at qdev->surface0_shadow | |
199 | */ | |
200 | qxl_io_log(qdev, "dirty x[%d, %d], y[%d, %d]", clips->x1, clips->x2, | |
201 | clips->y1, clips->y2); | |
202 | image->dx = clips->x1; | |
203 | image->dy = clips->y1; | |
204 | image->width = clips->x2 - clips->x1; | |
205 | image->height = clips->y2 - clips->y1; | |
206 | image->fg_color = 0xffffffff; /* unused, just to avoid uninitialized | |
207 | warnings */ | |
208 | image->bg_color = 0; | |
209 | image->depth = 32; /* TODO: take from somewhere? */ | |
210 | image->cmap.start = 0; | |
211 | image->cmap.len = 0; | |
212 | image->cmap.red = NULL; | |
213 | image->cmap.green = NULL; | |
214 | image->cmap.blue = NULL; | |
215 | image->cmap.transp = NULL; | |
216 | image->data = qfbdev->shadow + (clips->x1 * 4) + (stride * clips->y1); | |
217 | ||
218 | qxl_fb_image_init(&qxl_fb_image, qdev, info, NULL); | |
219 | qxl_draw_opaque_fb(&qxl_fb_image, stride); | |
220 | ||
221 | return 0; | |
222 | } | |
223 | ||
224 | static const struct drm_framebuffer_funcs qxlfb_fb_funcs = { | |
225 | .destroy = qxl_user_framebuffer_destroy, | |
226 | .dirty = qxlfb_framebuffer_dirty, | |
227 | }; | |
228 | ||
f64122c1 DA |
229 | static int qxlfb_create(struct qxl_fbdev *qfbdev, |
230 | struct drm_fb_helper_surface_size *sizes) | |
231 | { | |
232 | struct qxl_device *qdev = qfbdev->qdev; | |
233 | struct fb_info *info; | |
234 | struct drm_framebuffer *fb = NULL; | |
235 | struct drm_mode_fb_cmd2 mode_cmd; | |
236 | struct drm_gem_object *gobj = NULL; | |
237 | struct qxl_bo *qbo = NULL; | |
f64122c1 DA |
238 | int ret; |
239 | int size; | |
240 | int bpp = sizes->surface_bpp; | |
241 | int depth = sizes->surface_depth; | |
242 | void *shadow; | |
243 | ||
244 | mode_cmd.width = sizes->surface_width; | |
245 | mode_cmd.height = sizes->surface_height; | |
246 | ||
247 | mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 1) / 8), 64); | |
248 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); | |
249 | ||
250 | ret = qxlfb_create_pinned_object(qfbdev, &mode_cmd, &gobj); | |
2d6b1d40 GH |
251 | if (ret < 0) |
252 | return ret; | |
253 | ||
f64122c1 DA |
254 | qbo = gem_to_qxl_bo(gobj); |
255 | QXL_INFO(qdev, "%s: %dx%d %d\n", __func__, mode_cmd.width, | |
256 | mode_cmd.height, mode_cmd.pitches[0]); | |
257 | ||
258 | shadow = vmalloc(mode_cmd.pitches[0] * mode_cmd.height); | |
259 | /* TODO: what's the usual response to memory allocation errors? */ | |
260 | BUG_ON(!shadow); | |
261 | QXL_INFO(qdev, | |
262 | "surface0 at gpu offset %lld, mmap_offset %lld (virt %p, shadow %p)\n", | |
263 | qxl_bo_gpu_offset(qbo), | |
264 | qxl_bo_mmap_offset(qbo), | |
265 | qbo->kptr, | |
266 | shadow); | |
267 | size = mode_cmd.pitches[0] * mode_cmd.height; | |
268 | ||
e7cd84cf AT |
269 | info = drm_fb_helper_alloc_fbi(&qfbdev->helper); |
270 | if (IS_ERR(info)) { | |
271 | ret = PTR_ERR(info); | |
f64122c1 DA |
272 | goto out_unref; |
273 | } | |
274 | ||
275 | info->par = qfbdev; | |
276 | ||
6819c3c2 NT |
277 | qxl_framebuffer_init(qdev->ddev, &qfbdev->qfb, &mode_cmd, gobj, |
278 | &qxlfb_fb_funcs); | |
f64122c1 DA |
279 | |
280 | fb = &qfbdev->qfb.base; | |
281 | ||
282 | /* setup helper with fb data */ | |
283 | qfbdev->helper.fb = fb; | |
e7cd84cf | 284 | |
f64122c1 DA |
285 | qfbdev->shadow = shadow; |
286 | strcpy(info->fix.id, "qxldrmfb"); | |
287 | ||
288 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); | |
289 | ||
290 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT; | |
291 | info->fbops = &qxlfb_ops; | |
292 | ||
293 | /* | |
294 | * TODO: using gobj->size in various places in this function. Not sure | |
295 | * what the difference between the different sizes is. | |
296 | */ | |
297 | info->fix.smem_start = qdev->vram_base; /* TODO - correct? */ | |
298 | info->fix.smem_len = gobj->size; | |
299 | info->screen_base = qfbdev->shadow; | |
300 | info->screen_size = gobj->size; | |
301 | ||
302 | drm_fb_helper_fill_var(info, &qfbdev->helper, sizes->fb_width, | |
303 | sizes->fb_height); | |
304 | ||
305 | /* setup aperture base/size for vesafb takeover */ | |
f64122c1 DA |
306 | info->apertures->ranges[0].base = qdev->ddev->mode_config.fb_base; |
307 | info->apertures->ranges[0].size = qdev->vram_size; | |
308 | ||
309 | info->fix.mmio_start = 0; | |
310 | info->fix.mmio_len = 0; | |
311 | ||
312 | if (info->screen_base == NULL) { | |
313 | ret = -ENOSPC; | |
e7cd84cf | 314 | goto out_destroy_fbi; |
f64122c1 DA |
315 | } |
316 | ||
0c756134 | 317 | #ifdef CONFIG_DRM_FBDEV_EMULATION |
f64122c1 DA |
318 | info->fbdefio = &qxl_defio; |
319 | fb_deferred_io_init(info); | |
0c756134 | 320 | #endif |
f64122c1 DA |
321 | |
322 | qdev->fbdev_info = info; | |
323 | qdev->fbdev_qfb = &qfbdev->qfb; | |
324 | DRM_INFO("fb mappable at 0x%lX, size %lu\n", info->fix.smem_start, (unsigned long)info->screen_size); | |
325 | DRM_INFO("fb: depth %d, pitch %d, width %d, height %d\n", fb->depth, fb->pitches[0], fb->width, fb->height); | |
326 | return 0; | |
327 | ||
e7cd84cf AT |
328 | out_destroy_fbi: |
329 | drm_fb_helper_release_fbi(&qfbdev->helper); | |
f64122c1 DA |
330 | out_unref: |
331 | if (qbo) { | |
332 | ret = qxl_bo_reserve(qbo, false); | |
333 | if (likely(ret == 0)) { | |
334 | qxl_bo_kunmap(qbo); | |
335 | qxl_bo_unpin(qbo); | |
336 | qxl_bo_unreserve(qbo); | |
337 | } | |
338 | } | |
339 | if (fb && ret) { | |
068149ad | 340 | drm_gem_object_unreference_unlocked(gobj); |
f64122c1 DA |
341 | drm_framebuffer_cleanup(fb); |
342 | kfree(fb); | |
343 | } | |
068149ad | 344 | drm_gem_object_unreference_unlocked(gobj); |
f64122c1 DA |
345 | return ret; |
346 | } | |
347 | ||
348 | static int qxl_fb_find_or_create_single( | |
349 | struct drm_fb_helper *helper, | |
350 | struct drm_fb_helper_surface_size *sizes) | |
351 | { | |
f38e34ac FF |
352 | struct qxl_fbdev *qfbdev = |
353 | container_of(helper, struct qxl_fbdev, helper); | |
f64122c1 DA |
354 | int new_fb = 0; |
355 | int ret; | |
356 | ||
357 | if (!helper->fb) { | |
358 | ret = qxlfb_create(qfbdev, sizes); | |
359 | if (ret) | |
360 | return ret; | |
361 | new_fb = 1; | |
362 | } | |
363 | return new_fb; | |
364 | } | |
365 | ||
366 | static int qxl_fbdev_destroy(struct drm_device *dev, struct qxl_fbdev *qfbdev) | |
367 | { | |
f64122c1 DA |
368 | struct qxl_framebuffer *qfb = &qfbdev->qfb; |
369 | ||
e7cd84cf AT |
370 | drm_fb_helper_unregister_fbi(&qfbdev->helper); |
371 | drm_fb_helper_release_fbi(&qfbdev->helper); | |
f64122c1 | 372 | |
f64122c1 DA |
373 | if (qfb->obj) { |
374 | qxlfb_destroy_pinned_object(qfb->obj); | |
375 | qfb->obj = NULL; | |
376 | } | |
377 | drm_fb_helper_fini(&qfbdev->helper); | |
378 | vfree(qfbdev->shadow); | |
379 | drm_framebuffer_cleanup(&qfb->base); | |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
3a493879 | 384 | static const struct drm_fb_helper_funcs qxl_fb_helper_funcs = { |
f64122c1 DA |
385 | .fb_probe = qxl_fb_find_or_create_single, |
386 | }; | |
387 | ||
388 | int qxl_fbdev_init(struct qxl_device *qdev) | |
389 | { | |
390 | struct qxl_fbdev *qfbdev; | |
391 | int bpp_sel = 32; /* TODO: parameter from somewhere? */ | |
392 | int ret; | |
393 | ||
394 | qfbdev = kzalloc(sizeof(struct qxl_fbdev), GFP_KERNEL); | |
395 | if (!qfbdev) | |
396 | return -ENOMEM; | |
397 | ||
398 | qfbdev->qdev = qdev; | |
399 | qdev->mode_info.qfbdev = qfbdev; | |
0665f9f8 DA |
400 | spin_lock_init(&qfbdev->delayed_ops_lock); |
401 | INIT_LIST_HEAD(&qfbdev->delayed_ops); | |
10a23102 TR |
402 | |
403 | drm_fb_helper_prepare(qdev->ddev, &qfbdev->helper, | |
404 | &qxl_fb_helper_funcs); | |
405 | ||
f64122c1 | 406 | ret = drm_fb_helper_init(qdev->ddev, &qfbdev->helper, |
07f8d9bd | 407 | qxl_num_crtc /* num_crtc - QXL supports just 1 */, |
f64122c1 | 408 | QXLFB_CONN_LIMIT); |
01934c2a TR |
409 | if (ret) |
410 | goto free; | |
411 | ||
412 | ret = drm_fb_helper_single_add_all_connectors(&qfbdev->helper); | |
413 | if (ret) | |
414 | goto fini; | |
415 | ||
416 | ret = drm_fb_helper_initial_config(&qfbdev->helper, bpp_sel); | |
417 | if (ret) | |
418 | goto fini; | |
f64122c1 | 419 | |
f64122c1 | 420 | return 0; |
01934c2a TR |
421 | |
422 | fini: | |
423 | drm_fb_helper_fini(&qfbdev->helper); | |
424 | free: | |
425 | kfree(qfbdev); | |
426 | return ret; | |
f64122c1 DA |
427 | } |
428 | ||
429 | void qxl_fbdev_fini(struct qxl_device *qdev) | |
430 | { | |
431 | if (!qdev->mode_info.qfbdev) | |
432 | return; | |
433 | ||
434 | qxl_fbdev_destroy(qdev->ddev, qdev->mode_info.qfbdev); | |
435 | kfree(qdev->mode_info.qfbdev); | |
436 | qdev->mode_info.qfbdev = NULL; | |
437 | } | |
438 | ||
b86487a6 DA |
439 | void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state) |
440 | { | |
e7cd84cf | 441 | drm_fb_helper_set_suspend(&qdev->mode_info.qfbdev->helper, state); |
b86487a6 | 442 | } |
f64122c1 | 443 | |
b86487a6 DA |
444 | bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj) |
445 | { | |
446 | if (qobj == gem_to_qxl_bo(qdev->mode_info.qfbdev->qfb.obj)) | |
447 | return true; | |
448 | return false; | |
449 | } |