Commit | Line | Data |
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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 | ||
cbdded7f | 67 | return qxl_mode_dumb_mmap(file_priv, &qdev->ddev, qxl_map->handle, |
f64122c1 DA |
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 */ | |
a8ad0bd8 | 110 | static int qxlhw_handle_to_bo(struct drm_file *file_priv, uint64_t handle, |
ef131696 | 111 | struct qxl_release *release, struct qxl_bo **qbo_p) |
f64122c1 DA |
112 | { |
113 | struct drm_gem_object *gobj; | |
114 | struct qxl_bo *qobj; | |
115 | int ret; | |
116 | ||
a8ad0bd8 | 117 | gobj = drm_gem_object_lookup(file_priv, handle); |
8002db63 | 118 | if (!gobj) |
ef131696 | 119 | return -EINVAL; |
8002db63 | 120 | |
f64122c1 DA |
121 | qobj = gem_to_qxl_bo(gobj); |
122 | ||
8002db63 | 123 | ret = qxl_release_list_add(release, qobj); |
2793c1d7 | 124 | drm_gem_object_put_unlocked(gobj); |
74d9a633 | 125 | if (ret) |
ef131696 | 126 | return ret; |
f64122c1 | 127 | |
ef131696 FZ |
128 | *qbo_p = qobj; |
129 | return 0; | |
f64122c1 DA |
130 | } |
131 | ||
132 | /* | |
133 | * Usage of execbuffer: | |
134 | * Relocations need to take into account the full QXLDrawable size. | |
135 | * However, the command as passed from user space must *not* contain the initial | |
136 | * QXLReleaseInfo struct (first XXX bytes) | |
137 | */ | |
8002db63 DA |
138 | static int qxl_process_single_command(struct qxl_device *qdev, |
139 | struct drm_qxl_command *cmd, | |
140 | struct drm_file *file_priv) | |
f64122c1 | 141 | { |
8002db63 DA |
142 | struct qxl_reloc_info *reloc_info; |
143 | int release_type; | |
144 | struct qxl_release *release; | |
145 | struct qxl_bo *cmd_bo; | |
f64122c1 | 146 | void *fb_cmd; |
74d9a633 | 147 | int i, ret, num_relocs; |
f64122c1 | 148 | int unwritten; |
f64122c1 | 149 | |
8002db63 DA |
150 | switch (cmd->type) { |
151 | case QXL_CMD_DRAW: | |
152 | release_type = QXL_RELEASE_DRAWABLE; | |
153 | break; | |
154 | case QXL_CMD_SURFACE: | |
155 | case QXL_CMD_CURSOR: | |
156 | default: | |
157 | DRM_DEBUG("Only draw commands in execbuffers\n"); | |
158 | return -EINVAL; | |
159 | break; | |
160 | } | |
f64122c1 | 161 | |
8002db63 DA |
162 | if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info)) |
163 | return -EINVAL; | |
f64122c1 | 164 | |
8002db63 | 165 | if (!access_ok(VERIFY_READ, |
6545135a | 166 | u64_to_user_ptr(cmd->command), |
8002db63 DA |
167 | cmd->command_size)) |
168 | return -EFAULT; | |
f64122c1 | 169 | |
34855706 GH |
170 | reloc_info = kmalloc_array(cmd->relocs_num, |
171 | sizeof(struct qxl_reloc_info), GFP_KERNEL); | |
8002db63 DA |
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 | 184 | /* TODO copy slow path code from i915 */ |
66c0255c | 185 | fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_MASK)); |
6545135a | 186 | unwritten = __copy_from_user_inatomic_nocache |
66c0255c | 187 | (fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_MASK), |
6545135a | 188 | u64_to_user_ptr(cmd->command), cmd->command_size); |
c9272155 | 189 | |
8002db63 DA |
190 | { |
191 | struct qxl_drawable *draw = fb_cmd; | |
192 | draw->mm_time = qdev->rom->mm_clock; | |
193 | } | |
c9272155 | 194 | |
8002db63 DA |
195 | qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd); |
196 | if (unwritten) { | |
197 | DRM_ERROR("got unwritten %d\n", unwritten); | |
198 | ret = -EFAULT; | |
199 | goto out_free_release; | |
200 | } | |
201 | ||
202 | /* fill out reloc info structs */ | |
203 | num_relocs = 0; | |
204 | for (i = 0; i < cmd->relocs_num; ++i) { | |
205 | struct drm_qxl_reloc reloc; | |
6545135a | 206 | struct drm_qxl_reloc __user *u = u64_to_user_ptr(cmd->relocs); |
8002db63 | 207 | |
6545135a | 208 | if (copy_from_user(&reloc, u + i, sizeof(reloc))) { |
8002db63 DA |
209 | ret = -EFAULT; |
210 | goto out_free_bos; | |
f64122c1 DA |
211 | } |
212 | ||
8002db63 DA |
213 | /* add the bos to the list of bos to validate - |
214 | need to validate first then process relocs? */ | |
215 | if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) { | |
55cc3df0 | 216 | DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type); |
f64122c1 | 217 | |
8002db63 DA |
218 | ret = -EINVAL; |
219 | goto out_free_bos; | |
220 | } | |
221 | reloc_info[i].type = reloc.reloc_type; | |
222 | ||
223 | if (reloc.dst_handle) { | |
a8ad0bd8 | 224 | ret = qxlhw_handle_to_bo(file_priv, reloc.dst_handle, release, |
ef131696 FZ |
225 | &reloc_info[i].dst_bo); |
226 | if (ret) | |
8002db63 | 227 | goto out_free_bos; |
8002db63 DA |
228 | reloc_info[i].dst_offset = reloc.dst_offset; |
229 | } else { | |
230 | reloc_info[i].dst_bo = cmd_bo; | |
231 | reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset; | |
232 | } | |
233 | num_relocs++; | |
234 | ||
235 | /* reserve and validate the reloc dst bo */ | |
ef131696 | 236 | if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) { |
a8ad0bd8 | 237 | ret = qxlhw_handle_to_bo(file_priv, reloc.src_handle, release, |
ef131696 FZ |
238 | &reloc_info[i].src_bo); |
239 | if (ret) | |
8002db63 | 240 | goto out_free_bos; |
8002db63 DA |
241 | reloc_info[i].src_offset = reloc.src_offset; |
242 | } else { | |
243 | reloc_info[i].src_bo = NULL; | |
244 | reloc_info[i].src_offset = 0; | |
245 | } | |
246 | } | |
f64122c1 | 247 | |
8002db63 DA |
248 | /* validate all buffers */ |
249 | ret = qxl_release_reserve_list(release, false); | |
250 | if (ret) | |
251 | goto out_free_bos; | |
f64122c1 | 252 | |
8002db63 DA |
253 | for (i = 0; i < cmd->relocs_num; ++i) { |
254 | if (reloc_info[i].type == QXL_RELOC_TYPE_BO) | |
255 | apply_reloc(qdev, &reloc_info[i]); | |
256 | else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF) | |
257 | apply_surf_reloc(qdev, &reloc_info[i]); | |
258 | } | |
f64122c1 | 259 | |
8002db63 DA |
260 | ret = qxl_push_command_ring_release(qdev, release, cmd->type, true); |
261 | if (ret) | |
262 | qxl_release_backoff_reserve_list(release); | |
263 | else | |
264 | qxl_release_fence_buffer_objects(release); | |
265 | ||
266 | out_free_bos: | |
8002db63 DA |
267 | out_free_release: |
268 | if (ret) | |
269 | qxl_release_free(qdev, release); | |
270 | out_free_reloc: | |
271 | kfree(reloc_info); | |
272 | return ret; | |
273 | } | |
274 | ||
275 | static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, | |
276 | struct drm_file *file_priv) | |
277 | { | |
278 | struct qxl_device *qdev = dev->dev_private; | |
279 | struct drm_qxl_execbuffer *execbuffer = data; | |
280 | struct drm_qxl_command user_cmd; | |
281 | int cmd_num; | |
282 | int ret; | |
283 | ||
284 | for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) { | |
f64122c1 | 285 | |
6545135a GH |
286 | struct drm_qxl_command __user *commands = |
287 | u64_to_user_ptr(execbuffer->commands); | |
8002db63 | 288 | |
6545135a | 289 | if (copy_from_user(&user_cmd, commands + cmd_num, |
8002db63 DA |
290 | sizeof(user_cmd))) |
291 | return -EFAULT; | |
292 | ||
293 | ret = qxl_process_single_command(qdev, &user_cmd, file_priv); | |
294 | if (ret) | |
f64122c1 | 295 | return ret; |
f64122c1 | 296 | } |
f64122c1 DA |
297 | return 0; |
298 | } | |
299 | ||
6d01f1f5 DA |
300 | static int qxl_update_area_ioctl(struct drm_device *dev, void *data, |
301 | struct drm_file *file) | |
f64122c1 DA |
302 | { |
303 | struct qxl_device *qdev = dev->dev_private; | |
304 | struct drm_qxl_update_area *update_area = data; | |
305 | struct qxl_rect area = {.left = update_area->left, | |
306 | .top = update_area->top, | |
307 | .right = update_area->right, | |
308 | .bottom = update_area->bottom}; | |
309 | int ret; | |
310 | struct drm_gem_object *gobj = NULL; | |
311 | struct qxl_bo *qobj = NULL; | |
19be5570 | 312 | struct ttm_operation_ctx ctx = { true, false }; |
f64122c1 DA |
313 | |
314 | if (update_area->left >= update_area->right || | |
315 | update_area->top >= update_area->bottom) | |
316 | return -EINVAL; | |
317 | ||
a8ad0bd8 | 318 | gobj = drm_gem_object_lookup(file, update_area->handle); |
f64122c1 DA |
319 | if (gobj == NULL) |
320 | return -ENOENT; | |
321 | ||
322 | qobj = gem_to_qxl_bo(gobj); | |
323 | ||
324 | ret = qxl_bo_reserve(qobj, false); | |
325 | if (ret) | |
326 | goto out; | |
327 | ||
328 | if (!qobj->pin_count) { | |
4f49ec92 | 329 | qxl_ttm_placement_from_domain(qobj, qobj->type, false); |
19be5570 | 330 | ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, &ctx); |
f64122c1 DA |
331 | if (unlikely(ret)) |
332 | goto out; | |
333 | } | |
334 | ||
335 | ret = qxl_bo_check_id(qdev, qobj); | |
336 | if (ret) | |
337 | goto out2; | |
338 | if (!qobj->surface_id) | |
339 | DRM_ERROR("got update area for surface with no id %d\n", update_area->handle); | |
340 | ret = qxl_io_update_area(qdev, qobj, &area); | |
341 | ||
342 | out2: | |
343 | qxl_bo_unreserve(qobj); | |
344 | ||
345 | out: | |
2793c1d7 | 346 | drm_gem_object_put_unlocked(gobj); |
f64122c1 DA |
347 | return ret; |
348 | } | |
349 | ||
350 | static int qxl_getparam_ioctl(struct drm_device *dev, void *data, | |
351 | struct drm_file *file_priv) | |
352 | { | |
353 | struct qxl_device *qdev = dev->dev_private; | |
354 | struct drm_qxl_getparam *param = data; | |
355 | ||
356 | switch (param->param) { | |
357 | case QXL_PARAM_NUM_SURFACES: | |
358 | param->value = qdev->rom->n_surfaces; | |
359 | break; | |
360 | case QXL_PARAM_MAX_RELOCS: | |
361 | param->value = QXL_MAX_RES; | |
362 | break; | |
363 | default: | |
364 | return -EINVAL; | |
365 | } | |
366 | return 0; | |
367 | } | |
368 | ||
369 | static int qxl_clientcap_ioctl(struct drm_device *dev, void *data, | |
370 | struct drm_file *file_priv) | |
371 | { | |
372 | struct qxl_device *qdev = dev->dev_private; | |
373 | struct drm_qxl_clientcap *param = data; | |
374 | int byte, idx; | |
375 | ||
376 | byte = param->index / 8; | |
377 | idx = param->index % 8; | |
378 | ||
d74d74ae | 379 | if (dev->pdev->revision < 4) |
f64122c1 DA |
380 | return -ENOSYS; |
381 | ||
62c8ba7c | 382 | if (byte >= 58) |
f64122c1 DA |
383 | return -ENOSYS; |
384 | ||
385 | if (qdev->rom->client_capabilities[byte] & (1 << idx)) | |
386 | return 0; | |
387 | return -ENOSYS; | |
388 | } | |
389 | ||
390 | static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data, | |
391 | struct drm_file *file) | |
392 | { | |
393 | struct qxl_device *qdev = dev->dev_private; | |
394 | struct drm_qxl_alloc_surf *param = data; | |
395 | struct qxl_bo *qobj; | |
396 | int handle; | |
397 | int ret; | |
398 | int size, actual_stride; | |
399 | struct qxl_surface surf; | |
400 | ||
401 | /* work out size allocate bo with handle */ | |
402 | actual_stride = param->stride < 0 ? -param->stride : param->stride; | |
403 | size = actual_stride * param->height + actual_stride; | |
404 | ||
405 | surf.format = param->format; | |
406 | surf.width = param->width; | |
407 | surf.height = param->height; | |
408 | surf.stride = param->stride; | |
409 | surf.data = 0; | |
410 | ||
411 | ret = qxl_gem_object_create_with_handle(qdev, file, | |
412 | QXL_GEM_DOMAIN_SURFACE, | |
413 | size, | |
414 | &surf, | |
415 | &qobj, &handle); | |
416 | if (ret) { | |
417 | DRM_ERROR("%s: failed to create gem ret=%d\n", | |
418 | __func__, ret); | |
419 | return -ENOMEM; | |
420 | } else | |
421 | param->handle = handle; | |
422 | return ret; | |
423 | } | |
424 | ||
baa70943 | 425 | const struct drm_ioctl_desc qxl_ioctls[] = { |
f8c47144 | 426 | DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH), |
f64122c1 | 427 | |
f8c47144 | 428 | DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH), |
f64122c1 DA |
429 | |
430 | DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl, | |
f8c47144 | 431 | DRM_AUTH), |
f64122c1 | 432 | DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl, |
f8c47144 | 433 | DRM_AUTH), |
f64122c1 | 434 | DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl, |
f8c47144 | 435 | DRM_AUTH), |
f64122c1 | 436 | DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl, |
f8c47144 | 437 | DRM_AUTH), |
f64122c1 DA |
438 | |
439 | DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl, | |
f8c47144 | 440 | DRM_AUTH), |
f64122c1 DA |
441 | }; |
442 | ||
f95aeb17 | 443 | int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls); |