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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 | ||
8002db63 DA |
71 | struct qxl_reloc_info { |
72 | int type; | |
73 | struct qxl_bo *dst_bo; | |
74 | uint32_t dst_offset; | |
75 | struct qxl_bo *src_bo; | |
76 | int src_offset; | |
77 | }; | |
78 | ||
f64122c1 DA |
79 | /* |
80 | * dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's | |
81 | * are on vram). | |
82 | * *(dst + dst_off) = qxl_bo_physical_address(src, src_off) | |
83 | */ | |
84 | static void | |
8002db63 | 85 | apply_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info) |
f64122c1 DA |
86 | { |
87 | void *reloc_page; | |
8002db63 DA |
88 | reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK); |
89 | *(uint64_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = qxl_bo_physical_address(qdev, | |
90 | info->src_bo, | |
91 | info->src_offset); | |
92 | qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page); | |
f64122c1 DA |
93 | } |
94 | ||
95 | static void | |
8002db63 | 96 | apply_surf_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info) |
f64122c1 DA |
97 | { |
98 | uint32_t id = 0; | |
99 | void *reloc_page; | |
100 | ||
8002db63 DA |
101 | if (info->src_bo && !info->src_bo->is_primary) |
102 | id = info->src_bo->surface_id; | |
f64122c1 | 103 | |
8002db63 DA |
104 | reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK); |
105 | *(uint32_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = id; | |
106 | qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page); | |
f64122c1 DA |
107 | } |
108 | ||
109 | /* return holding the reference to this object */ | |
ef131696 FZ |
110 | static int qxlhw_handle_to_bo(struct qxl_device *qdev, |
111 | struct drm_file *file_priv, uint64_t handle, | |
112 | struct qxl_release *release, struct qxl_bo **qbo_p) | |
f64122c1 DA |
113 | { |
114 | struct drm_gem_object *gobj; | |
115 | struct qxl_bo *qobj; | |
116 | int ret; | |
117 | ||
118 | gobj = drm_gem_object_lookup(qdev->ddev, file_priv, handle); | |
8002db63 | 119 | if (!gobj) |
ef131696 | 120 | return -EINVAL; |
8002db63 | 121 | |
f64122c1 DA |
122 | qobj = gem_to_qxl_bo(gobj); |
123 | ||
8002db63 | 124 | ret = qxl_release_list_add(release, qobj); |
74d9a633 FZ |
125 | drm_gem_object_unreference_unlocked(gobj); |
126 | if (ret) | |
ef131696 | 127 | return ret; |
f64122c1 | 128 | |
ef131696 FZ |
129 | *qbo_p = qobj; |
130 | return 0; | |
f64122c1 DA |
131 | } |
132 | ||
133 | /* | |
134 | * Usage of execbuffer: | |
135 | * Relocations need to take into account the full QXLDrawable size. | |
136 | * However, the command as passed from user space must *not* contain the initial | |
137 | * QXLReleaseInfo struct (first XXX bytes) | |
138 | */ | |
8002db63 DA |
139 | static int qxl_process_single_command(struct qxl_device *qdev, |
140 | struct drm_qxl_command *cmd, | |
141 | struct drm_file *file_priv) | |
f64122c1 | 142 | { |
8002db63 DA |
143 | struct qxl_reloc_info *reloc_info; |
144 | int release_type; | |
145 | struct qxl_release *release; | |
146 | struct qxl_bo *cmd_bo; | |
f64122c1 | 147 | void *fb_cmd; |
74d9a633 | 148 | int i, ret, num_relocs; |
f64122c1 | 149 | int unwritten; |
f64122c1 | 150 | |
8002db63 DA |
151 | switch (cmd->type) { |
152 | case QXL_CMD_DRAW: | |
153 | release_type = QXL_RELEASE_DRAWABLE; | |
154 | break; | |
155 | case QXL_CMD_SURFACE: | |
156 | case QXL_CMD_CURSOR: | |
157 | default: | |
158 | DRM_DEBUG("Only draw commands in execbuffers\n"); | |
159 | return -EINVAL; | |
160 | break; | |
161 | } | |
f64122c1 | 162 | |
8002db63 DA |
163 | if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info)) |
164 | return -EINVAL; | |
f64122c1 | 165 | |
8002db63 DA |
166 | if (!access_ok(VERIFY_READ, |
167 | (void *)(unsigned long)cmd->command, | |
168 | cmd->command_size)) | |
169 | return -EFAULT; | |
f64122c1 | 170 | |
8002db63 DA |
171 | reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL); |
172 | if (!reloc_info) | |
173 | return -ENOMEM; | |
18097b91 | 174 | |
8002db63 DA |
175 | ret = qxl_alloc_release_reserved(qdev, |
176 | sizeof(union qxl_release_info) + | |
177 | cmd->command_size, | |
178 | release_type, | |
179 | &release, | |
180 | &cmd_bo); | |
181 | if (ret) | |
182 | goto out_free_reloc; | |
f64122c1 | 183 | |
8002db63 DA |
184 | /* TODO copy slow path code from i915 */ |
185 | fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE)); | |
186 | unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size); | |
c9272155 | 187 | |
8002db63 DA |
188 | { |
189 | struct qxl_drawable *draw = fb_cmd; | |
190 | draw->mm_time = qdev->rom->mm_clock; | |
191 | } | |
c9272155 | 192 | |
8002db63 DA |
193 | qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd); |
194 | if (unwritten) { | |
195 | DRM_ERROR("got unwritten %d\n", unwritten); | |
196 | ret = -EFAULT; | |
197 | goto out_free_release; | |
198 | } | |
199 | ||
200 | /* fill out reloc info structs */ | |
201 | num_relocs = 0; | |
202 | for (i = 0; i < cmd->relocs_num; ++i) { | |
203 | struct drm_qxl_reloc reloc; | |
204 | ||
1d6ac185 | 205 | if (copy_from_user(&reloc, |
8002db63 DA |
206 | &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i], |
207 | sizeof(reloc))) { | |
208 | ret = -EFAULT; | |
209 | goto out_free_bos; | |
f64122c1 DA |
210 | } |
211 | ||
8002db63 DA |
212 | /* add the bos to the list of bos to validate - |
213 | need to validate first then process relocs? */ | |
214 | if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) { | |
55cc3df0 | 215 | DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type); |
f64122c1 | 216 | |
8002db63 DA |
217 | ret = -EINVAL; |
218 | goto out_free_bos; | |
219 | } | |
220 | reloc_info[i].type = reloc.reloc_type; | |
221 | ||
222 | if (reloc.dst_handle) { | |
ef131696 FZ |
223 | ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.dst_handle, release, |
224 | &reloc_info[i].dst_bo); | |
225 | if (ret) | |
8002db63 | 226 | goto out_free_bos; |
8002db63 DA |
227 | reloc_info[i].dst_offset = reloc.dst_offset; |
228 | } else { | |
229 | reloc_info[i].dst_bo = cmd_bo; | |
230 | reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset; | |
231 | } | |
232 | num_relocs++; | |
233 | ||
234 | /* reserve and validate the reloc dst bo */ | |
ef131696 FZ |
235 | if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) { |
236 | ret = qxlhw_handle_to_bo(qdev, file_priv, reloc.src_handle, release, | |
237 | &reloc_info[i].src_bo); | |
238 | if (ret) | |
8002db63 | 239 | goto out_free_bos; |
8002db63 DA |
240 | reloc_info[i].src_offset = reloc.src_offset; |
241 | } else { | |
242 | reloc_info[i].src_bo = NULL; | |
243 | reloc_info[i].src_offset = 0; | |
244 | } | |
245 | } | |
f64122c1 | 246 | |
8002db63 DA |
247 | /* validate all buffers */ |
248 | ret = qxl_release_reserve_list(release, false); | |
249 | if (ret) | |
250 | goto out_free_bos; | |
f64122c1 | 251 | |
8002db63 DA |
252 | for (i = 0; i < cmd->relocs_num; ++i) { |
253 | if (reloc_info[i].type == QXL_RELOC_TYPE_BO) | |
254 | apply_reloc(qdev, &reloc_info[i]); | |
255 | else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF) | |
256 | apply_surf_reloc(qdev, &reloc_info[i]); | |
257 | } | |
f64122c1 | 258 | |
8002db63 DA |
259 | ret = qxl_push_command_ring_release(qdev, release, cmd->type, true); |
260 | if (ret) | |
261 | qxl_release_backoff_reserve_list(release); | |
262 | else | |
263 | qxl_release_fence_buffer_objects(release); | |
264 | ||
265 | out_free_bos: | |
8002db63 DA |
266 | out_free_release: |
267 | if (ret) | |
268 | qxl_release_free(qdev, release); | |
269 | out_free_reloc: | |
270 | kfree(reloc_info); | |
271 | return ret; | |
272 | } | |
273 | ||
274 | static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, | |
275 | struct drm_file *file_priv) | |
276 | { | |
277 | struct qxl_device *qdev = dev->dev_private; | |
278 | struct drm_qxl_execbuffer *execbuffer = data; | |
279 | struct drm_qxl_command user_cmd; | |
280 | int cmd_num; | |
281 | int ret; | |
282 | ||
283 | for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) { | |
f64122c1 | 284 | |
8002db63 DA |
285 | struct drm_qxl_command *commands = |
286 | (struct drm_qxl_command *)(uintptr_t)execbuffer->commands; | |
287 | ||
1d6ac185 | 288 | if (copy_from_user(&user_cmd, &commands[cmd_num], |
8002db63 DA |
289 | sizeof(user_cmd))) |
290 | return -EFAULT; | |
291 | ||
292 | ret = qxl_process_single_command(qdev, &user_cmd, file_priv); | |
293 | if (ret) | |
f64122c1 | 294 | return ret; |
f64122c1 | 295 | } |
f64122c1 DA |
296 | return 0; |
297 | } | |
298 | ||
6d01f1f5 DA |
299 | static int qxl_update_area_ioctl(struct drm_device *dev, void *data, |
300 | struct drm_file *file) | |
f64122c1 DA |
301 | { |
302 | struct qxl_device *qdev = dev->dev_private; | |
303 | struct drm_qxl_update_area *update_area = data; | |
304 | struct qxl_rect area = {.left = update_area->left, | |
305 | .top = update_area->top, | |
306 | .right = update_area->right, | |
307 | .bottom = update_area->bottom}; | |
308 | int ret; | |
309 | struct drm_gem_object *gobj = NULL; | |
310 | struct qxl_bo *qobj = NULL; | |
311 | ||
312 | if (update_area->left >= update_area->right || | |
313 | update_area->top >= update_area->bottom) | |
314 | return -EINVAL; | |
315 | ||
316 | gobj = drm_gem_object_lookup(dev, file, update_area->handle); | |
317 | if (gobj == NULL) | |
318 | return -ENOENT; | |
319 | ||
320 | qobj = gem_to_qxl_bo(gobj); | |
321 | ||
322 | ret = qxl_bo_reserve(qobj, false); | |
323 | if (ret) | |
324 | goto out; | |
325 | ||
326 | if (!qobj->pin_count) { | |
4f49ec92 | 327 | qxl_ttm_placement_from_domain(qobj, qobj->type, false); |
f64122c1 DA |
328 | ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, |
329 | true, false); | |
330 | if (unlikely(ret)) | |
331 | goto out; | |
332 | } | |
333 | ||
334 | ret = qxl_bo_check_id(qdev, qobj); | |
335 | if (ret) | |
336 | goto out2; | |
337 | if (!qobj->surface_id) | |
338 | DRM_ERROR("got update area for surface with no id %d\n", update_area->handle); | |
339 | ret = qxl_io_update_area(qdev, qobj, &area); | |
340 | ||
341 | out2: | |
342 | qxl_bo_unreserve(qobj); | |
343 | ||
344 | out: | |
345 | drm_gem_object_unreference_unlocked(gobj); | |
346 | return ret; | |
347 | } | |
348 | ||
349 | static int qxl_getparam_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_getparam *param = data; | |
354 | ||
355 | switch (param->param) { | |
356 | case QXL_PARAM_NUM_SURFACES: | |
357 | param->value = qdev->rom->n_surfaces; | |
358 | break; | |
359 | case QXL_PARAM_MAX_RELOCS: | |
360 | param->value = QXL_MAX_RES; | |
361 | break; | |
362 | default: | |
363 | return -EINVAL; | |
364 | } | |
365 | return 0; | |
366 | } | |
367 | ||
368 | static int qxl_clientcap_ioctl(struct drm_device *dev, void *data, | |
369 | struct drm_file *file_priv) | |
370 | { | |
371 | struct qxl_device *qdev = dev->dev_private; | |
372 | struct drm_qxl_clientcap *param = data; | |
373 | int byte, idx; | |
374 | ||
375 | byte = param->index / 8; | |
376 | idx = param->index % 8; | |
377 | ||
378 | if (qdev->pdev->revision < 4) | |
379 | return -ENOSYS; | |
380 | ||
62c8ba7c | 381 | if (byte >= 58) |
f64122c1 DA |
382 | return -ENOSYS; |
383 | ||
384 | if (qdev->rom->client_capabilities[byte] & (1 << idx)) | |
385 | return 0; | |
386 | return -ENOSYS; | |
387 | } | |
388 | ||
389 | static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data, | |
390 | struct drm_file *file) | |
391 | { | |
392 | struct qxl_device *qdev = dev->dev_private; | |
393 | struct drm_qxl_alloc_surf *param = data; | |
394 | struct qxl_bo *qobj; | |
395 | int handle; | |
396 | int ret; | |
397 | int size, actual_stride; | |
398 | struct qxl_surface surf; | |
399 | ||
400 | /* work out size allocate bo with handle */ | |
401 | actual_stride = param->stride < 0 ? -param->stride : param->stride; | |
402 | size = actual_stride * param->height + actual_stride; | |
403 | ||
404 | surf.format = param->format; | |
405 | surf.width = param->width; | |
406 | surf.height = param->height; | |
407 | surf.stride = param->stride; | |
408 | surf.data = 0; | |
409 | ||
410 | ret = qxl_gem_object_create_with_handle(qdev, file, | |
411 | QXL_GEM_DOMAIN_SURFACE, | |
412 | size, | |
413 | &surf, | |
414 | &qobj, &handle); | |
415 | if (ret) { | |
416 | DRM_ERROR("%s: failed to create gem ret=%d\n", | |
417 | __func__, ret); | |
418 | return -ENOMEM; | |
419 | } else | |
420 | param->handle = handle; | |
421 | return ret; | |
422 | } | |
423 | ||
baa70943 | 424 | const struct drm_ioctl_desc qxl_ioctls[] = { |
f8c47144 | 425 | DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH), |
f64122c1 | 426 | |
f8c47144 | 427 | DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH), |
f64122c1 DA |
428 | |
429 | DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl, | |
f8c47144 | 430 | DRM_AUTH), |
f64122c1 | 431 | DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl, |
f8c47144 | 432 | DRM_AUTH), |
f64122c1 | 433 | DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl, |
f8c47144 | 434 | DRM_AUTH), |
f64122c1 | 435 | DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl, |
f8c47144 | 436 | DRM_AUTH), |
f64122c1 DA |
437 | |
438 | DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl, | |
f8c47144 | 439 | DRM_AUTH), |
f64122c1 DA |
440 | }; |
441 | ||
f95aeb17 | 442 | int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls); |