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6cca22ed CW |
1 | /* |
2 | * Copyright © 2016 Intel Corporation | |
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 DEALINGS | |
21 | * IN THE SOFTWARE. | |
22 | * | |
23 | */ | |
24 | ||
25 | #include "../i915_selftest.h" | |
26 | ||
27 | #include "mock_gem_device.h" | |
28 | #include "mock_dmabuf.h" | |
29 | ||
30 | static int igt_dmabuf_export(void *arg) | |
31 | { | |
32 | struct drm_i915_private *i915 = arg; | |
33 | struct drm_i915_gem_object *obj; | |
34 | struct dma_buf *dmabuf; | |
35 | ||
36 | obj = i915_gem_object_create(i915, PAGE_SIZE); | |
37 | if (IS_ERR(obj)) | |
38 | return PTR_ERR(obj); | |
39 | ||
40 | dmabuf = i915_gem_prime_export(&i915->drm, &obj->base, 0); | |
41 | i915_gem_object_put(obj); | |
42 | if (IS_ERR(dmabuf)) { | |
43 | pr_err("i915_gem_prime_export failed with err=%d\n", | |
44 | (int)PTR_ERR(dmabuf)); | |
45 | return PTR_ERR(dmabuf); | |
46 | } | |
47 | ||
48 | dma_buf_put(dmabuf); | |
49 | return 0; | |
50 | } | |
51 | ||
52 | static int igt_dmabuf_import_self(void *arg) | |
53 | { | |
54 | struct drm_i915_private *i915 = arg; | |
55 | struct drm_i915_gem_object *obj; | |
56 | struct drm_gem_object *import; | |
57 | struct dma_buf *dmabuf; | |
58 | int err; | |
59 | ||
60 | obj = i915_gem_object_create(i915, PAGE_SIZE); | |
61 | if (IS_ERR(obj)) | |
62 | return PTR_ERR(obj); | |
63 | ||
64 | dmabuf = i915_gem_prime_export(&i915->drm, &obj->base, 0); | |
65 | if (IS_ERR(dmabuf)) { | |
66 | pr_err("i915_gem_prime_export failed with err=%d\n", | |
67 | (int)PTR_ERR(dmabuf)); | |
68 | err = PTR_ERR(dmabuf); | |
69 | goto out; | |
70 | } | |
71 | ||
72 | import = i915_gem_prime_import(&i915->drm, dmabuf); | |
73 | if (IS_ERR(import)) { | |
74 | pr_err("i915_gem_prime_import failed with err=%d\n", | |
75 | (int)PTR_ERR(import)); | |
76 | err = PTR_ERR(import); | |
77 | goto out_dmabuf; | |
78 | } | |
79 | ||
80 | if (import != &obj->base) { | |
81 | pr_err("i915_gem_prime_import created a new object!\n"); | |
82 | err = -EINVAL; | |
83 | goto out_import; | |
84 | } | |
85 | ||
86 | err = 0; | |
87 | out_import: | |
88 | i915_gem_object_put(to_intel_bo(import)); | |
89 | out_dmabuf: | |
90 | dma_buf_put(dmabuf); | |
91 | out: | |
92 | i915_gem_object_put(obj); | |
93 | return err; | |
94 | } | |
95 | ||
96 | static int igt_dmabuf_import(void *arg) | |
97 | { | |
98 | struct drm_i915_private *i915 = arg; | |
99 | struct drm_i915_gem_object *obj; | |
100 | struct dma_buf *dmabuf; | |
101 | void *obj_map, *dma_map; | |
102 | u32 pattern[] = { 0, 0xaa, 0xcc, 0x55, 0xff }; | |
103 | int err, i; | |
104 | ||
105 | dmabuf = mock_dmabuf(1); | |
106 | if (IS_ERR(dmabuf)) | |
107 | return PTR_ERR(dmabuf); | |
108 | ||
109 | obj = to_intel_bo(i915_gem_prime_import(&i915->drm, dmabuf)); | |
110 | if (IS_ERR(obj)) { | |
111 | pr_err("i915_gem_prime_import failed with err=%d\n", | |
112 | (int)PTR_ERR(obj)); | |
113 | err = PTR_ERR(obj); | |
114 | goto out_dmabuf; | |
115 | } | |
116 | ||
117 | if (obj->base.dev != &i915->drm) { | |
118 | pr_err("i915_gem_prime_import created a non-i915 object!\n"); | |
119 | err = -EINVAL; | |
120 | goto out_obj; | |
121 | } | |
122 | ||
123 | if (obj->base.size != PAGE_SIZE) { | |
124 | pr_err("i915_gem_prime_import is wrong size found %lld, expected %ld\n", | |
125 | (long long)obj->base.size, PAGE_SIZE); | |
126 | err = -EINVAL; | |
127 | goto out_obj; | |
128 | } | |
129 | ||
130 | dma_map = dma_buf_vmap(dmabuf); | |
131 | if (!dma_map) { | |
132 | pr_err("dma_buf_vmap failed\n"); | |
133 | err = -ENOMEM; | |
134 | goto out_obj; | |
135 | } | |
136 | ||
137 | if (0) { /* Can not yet map dmabuf */ | |
138 | obj_map = i915_gem_object_pin_map(obj, I915_MAP_WB); | |
139 | if (IS_ERR(obj_map)) { | |
140 | err = PTR_ERR(obj_map); | |
141 | pr_err("i915_gem_object_pin_map failed with err=%d\n", err); | |
142 | goto out_dma_map; | |
143 | } | |
144 | ||
145 | for (i = 0; i < ARRAY_SIZE(pattern); i++) { | |
146 | memset(dma_map, pattern[i], PAGE_SIZE); | |
147 | if (memchr_inv(obj_map, pattern[i], PAGE_SIZE)) { | |
148 | err = -EINVAL; | |
149 | pr_err("imported vmap not all set to %x!\n", pattern[i]); | |
150 | i915_gem_object_unpin_map(obj); | |
151 | goto out_dma_map; | |
152 | } | |
153 | } | |
154 | ||
155 | for (i = 0; i < ARRAY_SIZE(pattern); i++) { | |
156 | memset(obj_map, pattern[i], PAGE_SIZE); | |
157 | if (memchr_inv(dma_map, pattern[i], PAGE_SIZE)) { | |
158 | err = -EINVAL; | |
159 | pr_err("exported vmap not all set to %x!\n", pattern[i]); | |
160 | i915_gem_object_unpin_map(obj); | |
161 | goto out_dma_map; | |
162 | } | |
163 | } | |
164 | ||
165 | i915_gem_object_unpin_map(obj); | |
166 | } | |
167 | ||
168 | err = 0; | |
169 | out_dma_map: | |
170 | dma_buf_vunmap(dmabuf, dma_map); | |
171 | out_obj: | |
172 | i915_gem_object_put(obj); | |
173 | out_dmabuf: | |
174 | dma_buf_put(dmabuf); | |
175 | return err; | |
176 | } | |
177 | ||
178 | static int igt_dmabuf_import_ownership(void *arg) | |
179 | { | |
180 | struct drm_i915_private *i915 = arg; | |
181 | struct drm_i915_gem_object *obj; | |
182 | struct dma_buf *dmabuf; | |
183 | void *ptr; | |
184 | int err; | |
185 | ||
186 | dmabuf = mock_dmabuf(1); | |
187 | if (IS_ERR(dmabuf)) | |
188 | return PTR_ERR(dmabuf); | |
189 | ||
190 | ptr = dma_buf_vmap(dmabuf); | |
191 | if (!ptr) { | |
192 | pr_err("dma_buf_vmap failed\n"); | |
193 | err = -ENOMEM; | |
194 | goto err_dmabuf; | |
195 | } | |
196 | ||
197 | memset(ptr, 0xc5, PAGE_SIZE); | |
198 | dma_buf_vunmap(dmabuf, ptr); | |
199 | ||
200 | obj = to_intel_bo(i915_gem_prime_import(&i915->drm, dmabuf)); | |
201 | if (IS_ERR(obj)) { | |
202 | pr_err("i915_gem_prime_import failed with err=%d\n", | |
203 | (int)PTR_ERR(obj)); | |
204 | err = PTR_ERR(obj); | |
205 | goto err_dmabuf; | |
206 | } | |
207 | ||
208 | dma_buf_put(dmabuf); | |
209 | ||
210 | err = i915_gem_object_pin_pages(obj); | |
211 | if (err) { | |
212 | pr_err("i915_gem_object_pin_pages failed with err=%d\n", err); | |
213 | goto out_obj; | |
214 | } | |
215 | ||
216 | err = 0; | |
217 | i915_gem_object_unpin_pages(obj); | |
218 | out_obj: | |
219 | i915_gem_object_put(obj); | |
220 | return err; | |
221 | ||
222 | err_dmabuf: | |
223 | dma_buf_put(dmabuf); | |
224 | return err; | |
225 | } | |
226 | ||
227 | static int igt_dmabuf_export_vmap(void *arg) | |
228 | { | |
229 | struct drm_i915_private *i915 = arg; | |
230 | struct drm_i915_gem_object *obj; | |
231 | struct dma_buf *dmabuf; | |
232 | void *ptr; | |
233 | int err; | |
234 | ||
235 | obj = i915_gem_object_create(i915, PAGE_SIZE); | |
236 | if (IS_ERR(obj)) | |
237 | return PTR_ERR(obj); | |
238 | ||
239 | dmabuf = i915_gem_prime_export(&i915->drm, &obj->base, 0); | |
240 | if (IS_ERR(dmabuf)) { | |
241 | pr_err("i915_gem_prime_export failed with err=%d\n", | |
242 | (int)PTR_ERR(dmabuf)); | |
243 | err = PTR_ERR(dmabuf); | |
244 | goto err_obj; | |
245 | } | |
246 | i915_gem_object_put(obj); | |
247 | ||
248 | ptr = dma_buf_vmap(dmabuf); | |
7c3f5317 CJ |
249 | if (!ptr) { |
250 | pr_err("dma_buf_vmap failed\n"); | |
251 | err = -ENOMEM; | |
6cca22ed CW |
252 | goto out; |
253 | } | |
254 | ||
255 | if (memchr_inv(ptr, 0, dmabuf->size)) { | |
256 | pr_err("Exported object not initialiased to zero!\n"); | |
257 | err = -EINVAL; | |
258 | goto out; | |
259 | } | |
260 | ||
261 | memset(ptr, 0xc5, dmabuf->size); | |
262 | ||
263 | err = 0; | |
264 | dma_buf_vunmap(dmabuf, ptr); | |
265 | out: | |
266 | dma_buf_put(dmabuf); | |
267 | return err; | |
268 | ||
269 | err_obj: | |
270 | i915_gem_object_put(obj); | |
271 | return err; | |
272 | } | |
273 | ||
c944a308 CW |
274 | static int igt_dmabuf_export_kmap(void *arg) |
275 | { | |
276 | struct drm_i915_private *i915 = arg; | |
277 | struct drm_i915_gem_object *obj; | |
278 | struct dma_buf *dmabuf; | |
279 | void *ptr; | |
280 | int err; | |
281 | ||
282 | obj = i915_gem_object_create(i915, 2*PAGE_SIZE); | |
283 | if (IS_ERR(obj)) | |
284 | return PTR_ERR(obj); | |
285 | ||
286 | dmabuf = i915_gem_prime_export(&i915->drm, &obj->base, 0); | |
287 | i915_gem_object_put(obj); | |
288 | if (IS_ERR(dmabuf)) { | |
289 | err = PTR_ERR(dmabuf); | |
290 | pr_err("i915_gem_prime_export failed with err=%d\n", err); | |
291 | return err; | |
292 | } | |
293 | ||
294 | ptr = dma_buf_kmap(dmabuf, 0); | |
295 | if (!ptr) { | |
296 | pr_err("dma_buf_kmap failed\n"); | |
297 | err = -ENOMEM; | |
298 | goto err; | |
299 | } | |
300 | ||
301 | if (memchr_inv(ptr, 0, PAGE_SIZE)) { | |
302 | dma_buf_kunmap(dmabuf, 0, ptr); | |
303 | pr_err("Exported page[0] not initialiased to zero!\n"); | |
304 | err = -EINVAL; | |
305 | goto err; | |
306 | } | |
307 | ||
308 | memset(ptr, 0xc5, PAGE_SIZE); | |
309 | dma_buf_kunmap(dmabuf, 0, ptr); | |
310 | ||
311 | ptr = i915_gem_object_pin_map(obj, I915_MAP_WB); | |
312 | if (IS_ERR(ptr)) { | |
313 | err = PTR_ERR(ptr); | |
314 | pr_err("i915_gem_object_pin_map failed with err=%d\n", err); | |
315 | goto err; | |
316 | } | |
317 | memset(ptr + PAGE_SIZE, 0xaa, PAGE_SIZE); | |
318 | i915_gem_object_unpin_map(obj); | |
319 | ||
320 | ptr = dma_buf_kmap(dmabuf, 1); | |
321 | if (!ptr) { | |
322 | pr_err("dma_buf_kmap failed\n"); | |
323 | err = -ENOMEM; | |
324 | goto err; | |
325 | } | |
326 | ||
327 | if (memchr_inv(ptr, 0xaa, PAGE_SIZE)) { | |
328 | dma_buf_kunmap(dmabuf, 1, ptr); | |
329 | pr_err("Exported page[1] not set to 0xaa!\n"); | |
330 | err = -EINVAL; | |
331 | goto err; | |
332 | } | |
333 | ||
334 | memset(ptr, 0xc5, PAGE_SIZE); | |
335 | dma_buf_kunmap(dmabuf, 1, ptr); | |
336 | ||
337 | ptr = dma_buf_kmap(dmabuf, 0); | |
338 | if (!ptr) { | |
339 | pr_err("dma_buf_kmap failed\n"); | |
340 | err = -ENOMEM; | |
341 | goto err; | |
342 | } | |
343 | if (memchr_inv(ptr, 0xc5, PAGE_SIZE)) { | |
344 | dma_buf_kunmap(dmabuf, 0, ptr); | |
345 | pr_err("Exported page[0] did not retain 0xc5!\n"); | |
346 | err = -EINVAL; | |
347 | goto err; | |
348 | } | |
349 | dma_buf_kunmap(dmabuf, 0, ptr); | |
350 | ||
351 | ptr = dma_buf_kmap(dmabuf, 2); | |
352 | if (ptr) { | |
353 | pr_err("Erroneously kmapped beyond the end of the object!\n"); | |
354 | dma_buf_kunmap(dmabuf, 2, ptr); | |
355 | err = -EINVAL; | |
356 | goto err; | |
357 | } | |
358 | ||
359 | ptr = dma_buf_kmap(dmabuf, -1); | |
360 | if (ptr) { | |
361 | pr_err("Erroneously kmapped before the start of the object!\n"); | |
362 | dma_buf_kunmap(dmabuf, -1, ptr); | |
363 | err = -EINVAL; | |
364 | goto err; | |
365 | } | |
366 | ||
367 | err = 0; | |
368 | err: | |
369 | dma_buf_put(dmabuf); | |
370 | return err; | |
371 | } | |
372 | ||
6cca22ed CW |
373 | int i915_gem_dmabuf_mock_selftests(void) |
374 | { | |
375 | static const struct i915_subtest tests[] = { | |
376 | SUBTEST(igt_dmabuf_export), | |
377 | SUBTEST(igt_dmabuf_import_self), | |
378 | SUBTEST(igt_dmabuf_import), | |
379 | SUBTEST(igt_dmabuf_import_ownership), | |
380 | SUBTEST(igt_dmabuf_export_vmap), | |
c944a308 | 381 | SUBTEST(igt_dmabuf_export_kmap), |
6cca22ed CW |
382 | }; |
383 | struct drm_i915_private *i915; | |
384 | int err; | |
385 | ||
386 | i915 = mock_gem_device(); | |
387 | if (!i915) | |
388 | return -ENOMEM; | |
389 | ||
390 | err = i915_subtests(tests, i915); | |
391 | ||
392 | drm_dev_unref(&i915->drm); | |
393 | return err; | |
394 | } | |
ced01afd CW |
395 | |
396 | int i915_gem_dmabuf_live_selftests(struct drm_i915_private *i915) | |
397 | { | |
398 | static const struct i915_subtest tests[] = { | |
399 | SUBTEST(igt_dmabuf_export), | |
400 | }; | |
401 | ||
402 | return i915_subtests(tests, i915); | |
403 | } |