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f64122c1 DA |
1 | /* |
2 | * Copyright 2013 Red Hat Inc. | |
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 shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Dave Airlie | |
23 | * Alon Levy | |
24 | */ | |
25 | ||
26 | #include "qxl_drv.h" | |
27 | #include "qxl_object.h" | |
28 | ||
29 | /* | |
30 | * TODO: allocating a new gem(in qxl_bo) for each request. | |
31 | * This is wasteful since bo's are page aligned. | |
32 | */ | |
6d01f1f5 DA |
33 | static int qxl_alloc_ioctl(struct drm_device *dev, void *data, |
34 | struct drm_file *file_priv) | |
f64122c1 DA |
35 | { |
36 | struct qxl_device *qdev = dev->dev_private; | |
37 | struct drm_qxl_alloc *qxl_alloc = data; | |
38 | int ret; | |
39 | struct qxl_bo *qobj; | |
40 | uint32_t handle; | |
41 | u32 domain = QXL_GEM_DOMAIN_VRAM; | |
42 | ||
43 | if (qxl_alloc->size == 0) { | |
44 | DRM_ERROR("invalid size %d\n", qxl_alloc->size); | |
45 | return -EINVAL; | |
46 | } | |
47 | ret = qxl_gem_object_create_with_handle(qdev, file_priv, | |
48 | domain, | |
49 | qxl_alloc->size, | |
50 | NULL, | |
51 | &qobj, &handle); | |
52 | if (ret) { | |
53 | DRM_ERROR("%s: failed to create gem ret=%d\n", | |
54 | __func__, ret); | |
55 | return -ENOMEM; | |
56 | } | |
57 | qxl_alloc->handle = handle; | |
58 | return 0; | |
59 | } | |
60 | ||
6d01f1f5 DA |
61 | static int qxl_map_ioctl(struct drm_device *dev, void *data, |
62 | struct drm_file *file_priv) | |
f64122c1 DA |
63 | { |
64 | struct qxl_device *qdev = dev->dev_private; | |
65 | struct drm_qxl_map *qxl_map = data; | |
66 | ||
67 | return qxl_mode_dumb_mmap(file_priv, qdev->ddev, qxl_map->handle, | |
68 | &qxl_map->offset); | |
69 | } | |
70 | ||
71 | /* | |
72 | * dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's | |
73 | * are on vram). | |
74 | * *(dst + dst_off) = qxl_bo_physical_address(src, src_off) | |
75 | */ | |
76 | static void | |
77 | apply_reloc(struct qxl_device *qdev, struct qxl_bo *dst, uint64_t dst_off, | |
78 | struct qxl_bo *src, uint64_t src_off) | |
79 | { | |
80 | void *reloc_page; | |
81 | ||
82 | reloc_page = qxl_bo_kmap_atomic_page(qdev, dst, dst_off & PAGE_MASK); | |
83 | *(uint64_t *)(reloc_page + (dst_off & ~PAGE_MASK)) = qxl_bo_physical_address(qdev, | |
84 | src, src_off); | |
85 | qxl_bo_kunmap_atomic_page(qdev, dst, reloc_page); | |
86 | } | |
87 | ||
88 | static void | |
89 | apply_surf_reloc(struct qxl_device *qdev, struct qxl_bo *dst, uint64_t dst_off, | |
90 | struct qxl_bo *src) | |
91 | { | |
92 | uint32_t id = 0; | |
93 | void *reloc_page; | |
94 | ||
95 | if (src && !src->is_primary) | |
96 | id = src->surface_id; | |
97 | ||
98 | reloc_page = qxl_bo_kmap_atomic_page(qdev, dst, dst_off & PAGE_MASK); | |
99 | *(uint32_t *)(reloc_page + (dst_off & ~PAGE_MASK)) = id; | |
100 | qxl_bo_kunmap_atomic_page(qdev, dst, reloc_page); | |
101 | } | |
102 | ||
103 | /* return holding the reference to this object */ | |
6d01f1f5 DA |
104 | static struct qxl_bo *qxlhw_handle_to_bo(struct qxl_device *qdev, |
105 | struct drm_file *file_priv, uint64_t handle, | |
106 | struct qxl_reloc_list *reloc_list) | |
f64122c1 DA |
107 | { |
108 | struct drm_gem_object *gobj; | |
109 | struct qxl_bo *qobj; | |
110 | int ret; | |
111 | ||
112 | gobj = drm_gem_object_lookup(qdev->ddev, file_priv, handle); | |
113 | if (!gobj) { | |
114 | DRM_ERROR("bad bo handle %lld\n", handle); | |
115 | return NULL; | |
116 | } | |
117 | qobj = gem_to_qxl_bo(gobj); | |
118 | ||
119 | ret = qxl_bo_list_add(reloc_list, qobj); | |
120 | if (ret) | |
121 | return NULL; | |
122 | ||
123 | return qobj; | |
124 | } | |
125 | ||
126 | /* | |
127 | * Usage of execbuffer: | |
128 | * Relocations need to take into account the full QXLDrawable size. | |
129 | * However, the command as passed from user space must *not* contain the initial | |
130 | * QXLReleaseInfo struct (first XXX bytes) | |
131 | */ | |
6d01f1f5 DA |
132 | static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, |
133 | struct drm_file *file_priv) | |
f64122c1 DA |
134 | { |
135 | struct qxl_device *qdev = dev->dev_private; | |
136 | struct drm_qxl_execbuffer *execbuffer = data; | |
137 | struct drm_qxl_command user_cmd; | |
138 | int cmd_num; | |
139 | struct qxl_bo *reloc_src_bo; | |
140 | struct qxl_bo *reloc_dst_bo; | |
141 | struct drm_qxl_reloc reloc; | |
142 | void *fb_cmd; | |
143 | int i, ret; | |
144 | struct qxl_reloc_list reloc_list; | |
145 | int unwritten; | |
146 | uint32_t reloc_dst_offset; | |
147 | INIT_LIST_HEAD(&reloc_list.bos); | |
148 | ||
149 | for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) { | |
150 | struct qxl_release *release; | |
151 | struct qxl_bo *cmd_bo; | |
152 | int release_type; | |
153 | struct drm_qxl_command *commands = | |
970fa986 | 154 | (struct drm_qxl_command *)(uintptr_t)execbuffer->commands; |
f64122c1 DA |
155 | |
156 | if (DRM_COPY_FROM_USER(&user_cmd, &commands[cmd_num], | |
157 | sizeof(user_cmd))) | |
158 | return -EFAULT; | |
159 | switch (user_cmd.type) { | |
160 | case QXL_CMD_DRAW: | |
161 | release_type = QXL_RELEASE_DRAWABLE; | |
162 | break; | |
163 | case QXL_CMD_SURFACE: | |
164 | case QXL_CMD_CURSOR: | |
165 | default: | |
166 | DRM_DEBUG("Only draw commands in execbuffers\n"); | |
167 | return -EINVAL; | |
168 | break; | |
169 | } | |
170 | ||
171 | if (user_cmd.command_size > PAGE_SIZE - sizeof(union qxl_release_info)) | |
172 | return -EINVAL; | |
173 | ||
18097b91 DA |
174 | if (!access_ok(VERIFY_READ, |
175 | (void *)(unsigned long)user_cmd.command, | |
176 | user_cmd.command_size)) | |
177 | return -EFAULT; | |
178 | ||
f64122c1 DA |
179 | ret = qxl_alloc_release_reserved(qdev, |
180 | sizeof(union qxl_release_info) + | |
181 | user_cmd.command_size, | |
182 | release_type, | |
183 | &release, | |
184 | &cmd_bo); | |
185 | if (ret) | |
186 | return ret; | |
187 | ||
188 | /* TODO copy slow path code from i915 */ | |
189 | fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE)); | |
190 | unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)user_cmd.command, user_cmd.command_size); | |
c9272155 DA |
191 | |
192 | { | |
193 | struct qxl_drawable *draw = fb_cmd; | |
194 | ||
195 | draw->mm_time = qdev->rom->mm_clock; | |
196 | } | |
f64122c1 DA |
197 | qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd); |
198 | if (unwritten) { | |
199 | DRM_ERROR("got unwritten %d\n", unwritten); | |
200 | qxl_release_unreserve(qdev, release); | |
201 | qxl_release_free(qdev, release); | |
202 | return -EFAULT; | |
203 | } | |
204 | ||
205 | for (i = 0 ; i < user_cmd.relocs_num; ++i) { | |
206 | if (DRM_COPY_FROM_USER(&reloc, | |
970fa986 | 207 | &((struct drm_qxl_reloc *)(uintptr_t)user_cmd.relocs)[i], |
f64122c1 DA |
208 | sizeof(reloc))) { |
209 | qxl_bo_list_unreserve(&reloc_list, true); | |
210 | qxl_release_unreserve(qdev, release); | |
211 | qxl_release_free(qdev, release); | |
212 | return -EFAULT; | |
213 | } | |
214 | ||
215 | /* add the bos to the list of bos to validate - | |
216 | need to validate first then process relocs? */ | |
217 | if (reloc.dst_handle) { | |
218 | reloc_dst_bo = qxlhw_handle_to_bo(qdev, file_priv, | |
219 | reloc.dst_handle, &reloc_list); | |
220 | if (!reloc_dst_bo) { | |
221 | qxl_bo_list_unreserve(&reloc_list, true); | |
222 | qxl_release_unreserve(qdev, release); | |
223 | qxl_release_free(qdev, release); | |
224 | return -EINVAL; | |
225 | } | |
226 | reloc_dst_offset = 0; | |
227 | } else { | |
228 | reloc_dst_bo = cmd_bo; | |
229 | reloc_dst_offset = release->release_offset; | |
230 | } | |
231 | ||
232 | /* reserve and validate the reloc dst bo */ | |
233 | if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle > 0) { | |
234 | reloc_src_bo = | |
235 | qxlhw_handle_to_bo(qdev, file_priv, | |
236 | reloc.src_handle, &reloc_list); | |
237 | if (!reloc_src_bo) { | |
238 | if (reloc_dst_bo != cmd_bo) | |
239 | drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base); | |
240 | qxl_bo_list_unreserve(&reloc_list, true); | |
241 | qxl_release_unreserve(qdev, release); | |
242 | qxl_release_free(qdev, release); | |
243 | return -EINVAL; | |
244 | } | |
245 | } else | |
246 | reloc_src_bo = NULL; | |
247 | if (reloc.reloc_type == QXL_RELOC_TYPE_BO) { | |
248 | apply_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset, | |
249 | reloc_src_bo, reloc.src_offset); | |
250 | } else if (reloc.reloc_type == QXL_RELOC_TYPE_SURF) { | |
251 | apply_surf_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset, reloc_src_bo); | |
252 | } else { | |
253 | DRM_ERROR("unknown reloc type %d\n", reloc.reloc_type); | |
254 | return -EINVAL; | |
255 | } | |
256 | ||
257 | if (reloc_src_bo && reloc_src_bo != cmd_bo) { | |
258 | qxl_release_add_res(qdev, release, reloc_src_bo); | |
259 | drm_gem_object_unreference_unlocked(&reloc_src_bo->gem_base); | |
260 | } | |
261 | ||
262 | if (reloc_dst_bo != cmd_bo) | |
263 | drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base); | |
264 | } | |
265 | qxl_fence_releaseable(qdev, release); | |
266 | ||
267 | ret = qxl_push_command_ring_release(qdev, release, user_cmd.type, true); | |
268 | if (ret == -ERESTARTSYS) { | |
269 | qxl_release_unreserve(qdev, release); | |
270 | qxl_release_free(qdev, release); | |
271 | qxl_bo_list_unreserve(&reloc_list, true); | |
272 | return ret; | |
273 | } | |
274 | qxl_release_unreserve(qdev, release); | |
275 | } | |
276 | qxl_bo_list_unreserve(&reloc_list, 0); | |
277 | return 0; | |
278 | } | |
279 | ||
6d01f1f5 DA |
280 | static int qxl_update_area_ioctl(struct drm_device *dev, void *data, |
281 | struct drm_file *file) | |
f64122c1 DA |
282 | { |
283 | struct qxl_device *qdev = dev->dev_private; | |
284 | struct drm_qxl_update_area *update_area = data; | |
285 | struct qxl_rect area = {.left = update_area->left, | |
286 | .top = update_area->top, | |
287 | .right = update_area->right, | |
288 | .bottom = update_area->bottom}; | |
289 | int ret; | |
290 | struct drm_gem_object *gobj = NULL; | |
291 | struct qxl_bo *qobj = NULL; | |
292 | ||
293 | if (update_area->left >= update_area->right || | |
294 | update_area->top >= update_area->bottom) | |
295 | return -EINVAL; | |
296 | ||
297 | gobj = drm_gem_object_lookup(dev, file, update_area->handle); | |
298 | if (gobj == NULL) | |
299 | return -ENOENT; | |
300 | ||
301 | qobj = gem_to_qxl_bo(gobj); | |
302 | ||
303 | ret = qxl_bo_reserve(qobj, false); | |
304 | if (ret) | |
305 | goto out; | |
306 | ||
307 | if (!qobj->pin_count) { | |
b90ed1e9 | 308 | qxl_ttm_placement_from_domain(qobj, qobj->type); |
f64122c1 DA |
309 | ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, |
310 | true, false); | |
311 | if (unlikely(ret)) | |
312 | goto out; | |
313 | } | |
314 | ||
315 | ret = qxl_bo_check_id(qdev, qobj); | |
316 | if (ret) | |
317 | goto out2; | |
318 | if (!qobj->surface_id) | |
319 | DRM_ERROR("got update area for surface with no id %d\n", update_area->handle); | |
320 | ret = qxl_io_update_area(qdev, qobj, &area); | |
321 | ||
322 | out2: | |
323 | qxl_bo_unreserve(qobj); | |
324 | ||
325 | out: | |
326 | drm_gem_object_unreference_unlocked(gobj); | |
327 | return ret; | |
328 | } | |
329 | ||
330 | static int qxl_getparam_ioctl(struct drm_device *dev, void *data, | |
331 | struct drm_file *file_priv) | |
332 | { | |
333 | struct qxl_device *qdev = dev->dev_private; | |
334 | struct drm_qxl_getparam *param = data; | |
335 | ||
336 | switch (param->param) { | |
337 | case QXL_PARAM_NUM_SURFACES: | |
338 | param->value = qdev->rom->n_surfaces; | |
339 | break; | |
340 | case QXL_PARAM_MAX_RELOCS: | |
341 | param->value = QXL_MAX_RES; | |
342 | break; | |
343 | default: | |
344 | return -EINVAL; | |
345 | } | |
346 | return 0; | |
347 | } | |
348 | ||
349 | static int qxl_clientcap_ioctl(struct drm_device *dev, void *data, | |
350 | struct drm_file *file_priv) | |
351 | { | |
352 | struct qxl_device *qdev = dev->dev_private; | |
353 | struct drm_qxl_clientcap *param = data; | |
354 | int byte, idx; | |
355 | ||
356 | byte = param->index / 8; | |
357 | idx = param->index % 8; | |
358 | ||
359 | if (qdev->pdev->revision < 4) | |
360 | return -ENOSYS; | |
361 | ||
62c8ba7c | 362 | if (byte >= 58) |
f64122c1 DA |
363 | return -ENOSYS; |
364 | ||
365 | if (qdev->rom->client_capabilities[byte] & (1 << idx)) | |
366 | return 0; | |
367 | return -ENOSYS; | |
368 | } | |
369 | ||
370 | static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data, | |
371 | struct drm_file *file) | |
372 | { | |
373 | struct qxl_device *qdev = dev->dev_private; | |
374 | struct drm_qxl_alloc_surf *param = data; | |
375 | struct qxl_bo *qobj; | |
376 | int handle; | |
377 | int ret; | |
378 | int size, actual_stride; | |
379 | struct qxl_surface surf; | |
380 | ||
381 | /* work out size allocate bo with handle */ | |
382 | actual_stride = param->stride < 0 ? -param->stride : param->stride; | |
383 | size = actual_stride * param->height + actual_stride; | |
384 | ||
385 | surf.format = param->format; | |
386 | surf.width = param->width; | |
387 | surf.height = param->height; | |
388 | surf.stride = param->stride; | |
389 | surf.data = 0; | |
390 | ||
391 | ret = qxl_gem_object_create_with_handle(qdev, file, | |
392 | QXL_GEM_DOMAIN_SURFACE, | |
393 | size, | |
394 | &surf, | |
395 | &qobj, &handle); | |
396 | if (ret) { | |
397 | DRM_ERROR("%s: failed to create gem ret=%d\n", | |
398 | __func__, ret); | |
399 | return -ENOMEM; | |
400 | } else | |
401 | param->handle = handle; | |
402 | return ret; | |
403 | } | |
404 | ||
baa70943 | 405 | const struct drm_ioctl_desc qxl_ioctls[] = { |
f64122c1 DA |
406 | DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH|DRM_UNLOCKED), |
407 | ||
408 | DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH|DRM_UNLOCKED), | |
409 | ||
410 | DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl, | |
411 | DRM_AUTH|DRM_UNLOCKED), | |
412 | DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl, | |
413 | DRM_AUTH|DRM_UNLOCKED), | |
414 | DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl, | |
415 | DRM_AUTH|DRM_UNLOCKED), | |
416 | DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl, | |
417 | DRM_AUTH|DRM_UNLOCKED), | |
418 | ||
419 | DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl, | |
420 | DRM_AUTH|DRM_UNLOCKED), | |
421 | }; | |
422 | ||
423 | int qxl_max_ioctls = DRM_ARRAY_SIZE(qxl_ioctls); |