1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24#include <linux/random.h>
25
26#include "gt/intel_gt_pm.h"
27#include "i915_drv.h"
28#include "i915_selftest.h"
29
30#include "igt_flush_test.h"
31
32struct i915_selftest i915_selftest __read_mostly = {
33 .timeout_ms = 500,
34};
35
36int i915_mock_sanitycheck(void)
37{
38 pr_info(DRIVER_NAME ": %s() - ok!\n", __func__);
39 return 0;
40}
41
42int i915_live_sanitycheck(struct drm_i915_private *i915)
43{
44 pr_info("%s: %s() - ok!\n", i915->drm.driver->name, __func__);
45 return 0;
46}
47
48enum {
49#define selftest(name, func) mock_##name,
50#include "i915_mock_selftests.h"
51#undef selftest
52};
53
54enum {
55#define selftest(name, func) live_##name,
56#include "i915_live_selftests.h"
57#undef selftest
58};
59
60enum {
61#define selftest(name, func) perf_##name,
62#include "i915_perf_selftests.h"
63#undef selftest
64};
65
66struct selftest {
67 bool enabled;
68 const char *name;
69 union {
70 int (*mock)(void);
71 int (*live)(struct drm_i915_private *);
72 };
73};
74
75#define selftest(n, f) [mock_##n] = { .name = #n, { .mock = f } },
76static struct selftest mock_selftests[] = {
77#include "i915_mock_selftests.h"
78};
79#undef selftest
80
81#define selftest(n, f) [live_##n] = { .name = #n, { .live = f } },
82static struct selftest live_selftests[] = {
83#include "i915_live_selftests.h"
84};
85#undef selftest
86
87#define selftest(n, f) [perf_##n] = { .name = #n, { .live = f } },
88static struct selftest perf_selftests[] = {
89#include "i915_perf_selftests.h"
90};
91#undef selftest
92
93
94#define selftest(n, func) selftest_0(n, func, param(n))
95#define param(n) __PASTE(igt__, __PASTE(__LINE__, __mock_##n))
96#define selftest_0(n, func, id) \
97module_param_named(id, mock_selftests[mock_##n].enabled, bool, 0400);
98#include "i915_mock_selftests.h"
99#undef selftest_0
100#undef param
101
102#define param(n) __PASTE(igt__, __PASTE(__LINE__, __live_##n))
103#define selftest_0(n, func, id) \
104module_param_named(id, live_selftests[live_##n].enabled, bool, 0400);
105#include "i915_live_selftests.h"
106#undef selftest_0
107#undef param
108
109#define param(n) __PASTE(igt__, __PASTE(__LINE__, __perf_##n))
110#define selftest_0(n, func, id) \
111module_param_named(id, perf_selftests[perf_##n].enabled, bool, 0400);
112#include "i915_perf_selftests.h"
113#undef selftest_0
114#undef param
115#undef selftest
116
117static void set_default_test_all(struct selftest *st, unsigned int count)
118{
119 unsigned int i;
120
121 for (i = 0; i < count; i++)
122 if (st[i].enabled)
123 return;
124
125 for (i = 0; i < count; i++)
126 st[i].enabled = true;
127}
128
129static int __run_selftests(const char *name,
130 struct selftest *st,
131 unsigned int count,
132 void *data)
133{
134 int err = 0;
135
136 while (!i915_selftest.random_seed)
137 i915_selftest.random_seed = get_random_int();
138
139 i915_selftest.timeout_jiffies =
140 i915_selftest.timeout_ms ?
141 msecs_to_jiffies_timeout(i915_selftest.timeout_ms) :
142 MAX_SCHEDULE_TIMEOUT;
143
144 set_default_test_all(st, count);
145
146 pr_info(DRIVER_NAME ": Performing %s selftests with st_random_seed=0x%x st_timeout=%u\n",
147 name, i915_selftest.random_seed, i915_selftest.timeout_ms);
148
149
150 for (; count--; st++) {
151 if (!st->enabled)
152 continue;
153
154 cond_resched();
155 if (signal_pending(current))
156 return -EINTR;
157
158 pr_info(DRIVER_NAME ": Running %s\n", st->name);
159 if (data)
160 err = st->live(data);
161 else
162 err = st->mock();
163 if (err == -EINTR && !signal_pending(current))
164 err = 0;
165 if (err)
166 break;
167 }
168
169 if (WARN(err > 0 || err == -ENOTTY,
170 "%s returned %d, conflicting with selftest's magic values!\n",
171 st->name, err))
172 err = -1;
173
174 return err;
175}
176
177#define run_selftests(x, data) \
178 __run_selftests(#x, x##_selftests, ARRAY_SIZE(x##_selftests), data)
179
180int i915_mock_selftests(void)
181{
182 int err;
183
184 if (!i915_selftest.mock)
185 return 0;
186
187 err = run_selftests(mock, NULL);
188 if (err) {
189 i915_selftest.mock = err;
190 return err;
191 }
192
193 if (i915_selftest.mock < 0) {
194 i915_selftest.mock = -ENOTTY;
195 return 1;
196 }
197
198 return 0;
199}
200
201int i915_live_selftests(struct pci_dev *pdev)
202{
203 int err;
204
205 if (!i915_selftest.live)
206 return 0;
207
208 err = run_selftests(live, pdev_to_i915(pdev));
209 if (err) {
210 i915_selftest.live = err;
211 return err;
212 }
213
214 if (i915_selftest.live < 0) {
215 i915_selftest.live = -ENOTTY;
216 return 1;
217 }
218
219 return 0;
220}
221
222int i915_perf_selftests(struct pci_dev *pdev)
223{
224 int err;
225
226 if (!i915_selftest.perf)
227 return 0;
228
229 err = run_selftests(perf, pdev_to_i915(pdev));
230 if (err) {
231 i915_selftest.perf = err;
232 return err;
233 }
234
235 if (i915_selftest.perf < 0) {
236 i915_selftest.perf = -ENOTTY;
237 return 1;
238 }
239
240 return 0;
241}
242
243static bool apply_subtest_filter(const char *caller, const char *name)
244{
245 char *filter, *sep, *tok;
246 bool result = true;
247
248 filter = kstrdup(i915_selftest.filter, GFP_KERNEL);
249 for (sep = filter; (tok = strsep(&sep, ","));) {
250 bool allow = true;
251 char *sl;
252
253 if (*tok == '!') {
254 allow = false;
255 tok++;
256 }
257
258 if (*tok == '\0')
259 continue;
260
261 sl = strchr(tok, '/');
262 if (sl) {
263 *sl++ = '\0';
264 if (strcmp(tok, caller)) {
265 if (allow)
266 result = false;
267 continue;
268 }
269 tok = sl;
270 }
271
272 if (strcmp(tok, name)) {
273 if (allow)
274 result = false;
275 continue;
276 }
277
278 result = allow;
279 break;
280 }
281 kfree(filter);
282
283 return result;
284}
285
286int __i915_nop_setup(void *data)
287{
288 return 0;
289}
290
291int __i915_nop_teardown(int err, void *data)
292{
293 return err;
294}
295
296int __i915_live_setup(void *data)
297{
298 struct drm_i915_private *i915 = data;
299
300
301 if (intel_gt_pm_wait_for_idle(&i915->gt))
302 return -EIO;
303
304 return intel_gt_terminally_wedged(&i915->gt);
305}
306
307int __i915_live_teardown(int err, void *data)
308{
309 struct drm_i915_private *i915 = data;
310
311 if (igt_flush_test(i915))
312 err = -EIO;
313
314 i915_gem_drain_freed_objects(i915);
315
316 return err;
317}
318
319int __intel_gt_live_setup(void *data)
320{
321 struct intel_gt *gt = data;
322
323
324 if (intel_gt_pm_wait_for_idle(gt))
325 return -EIO;
326
327 return intel_gt_terminally_wedged(gt);
328}
329
330int __intel_gt_live_teardown(int err, void *data)
331{
332 struct intel_gt *gt = data;
333
334 if (igt_flush_test(gt->i915))
335 err = -EIO;
336
337 i915_gem_drain_freed_objects(gt->i915);
338
339 return err;
340}
341
342int __i915_subtests(const char *caller,
343 int (*setup)(void *data),
344 int (*teardown)(int err, void *data),
345 const struct i915_subtest *st,
346 unsigned int count,
347 void *data)
348{
349 int err;
350
351 for (; count--; st++) {
352 cond_resched();
353 if (signal_pending(current))
354 return -EINTR;
355
356 if (!apply_subtest_filter(caller, st->name))
357 continue;
358
359 err = setup(data);
360 if (err) {
361 pr_err(DRIVER_NAME "/%s: setup failed for %s\n",
362 caller, st->name);
363 return err;
364 }
365
366 pr_info(DRIVER_NAME ": Running %s/%s\n", caller, st->name);
367 GEM_TRACE("Running %s/%s\n", caller, st->name);
368
369 err = teardown(st->func(data), data);
370 if (err && err != -EINTR) {
371 pr_err(DRIVER_NAME "/%s: %s failed with error %d\n",
372 caller, st->name, err);
373 return err;
374 }
375 }
376
377 return 0;
378}
379
380bool __igt_timeout(unsigned long timeout, const char *fmt, ...)
381{
382 va_list va;
383
384 if (!signal_pending(current)) {
385 cond_resched();
386 if (time_before(jiffies, timeout))
387 return false;
388 }
389
390 if (fmt) {
391 va_start(va, fmt);
392 vprintk(fmt, va);
393 va_end(va);
394 }
395
396 return true;
397}
398
399void igt_hexdump(const void *buf, size_t len)
400{
401 const size_t rowsize = 8 * sizeof(u32);
402 const void *prev = NULL;
403 bool skip = false;
404 size_t pos;
405
406 for (pos = 0; pos < len; pos += rowsize) {
407 char line[128];
408
409 if (prev && !memcmp(prev, buf + pos, rowsize)) {
410 if (!skip) {
411 pr_info("*\n");
412 skip = true;
413 }
414 continue;
415 }
416
417 WARN_ON_ONCE(hex_dump_to_buffer(buf + pos, len - pos,
418 rowsize, sizeof(u32),
419 line, sizeof(line),
420 false) >= sizeof(line));
421 pr_info("[%04zx] %s\n", pos, line);
422
423 prev = buf + pos;
424 skip = false;
425 }
426}
427
428module_param_named(st_random_seed, i915_selftest.random_seed, uint, 0400);
429module_param_named(st_timeout, i915_selftest.timeout_ms, uint, 0400);
430module_param_named(st_filter, i915_selftest.filter, charp, 0400);
431
432module_param_named_unsafe(mock_selftests, i915_selftest.mock, int, 0400);
433MODULE_PARM_DESC(mock_selftests, "Run selftests before loading, using mock hardware (0:disabled [default], 1:run tests then load driver, -1:run tests then exit module)");
434
435module_param_named_unsafe(live_selftests, i915_selftest.live, int, 0400);
436MODULE_PARM_DESC(live_selftests, "Run selftests after driver initialisation on the live system (0:disabled [default], 1:run tests then continue, -1:run tests then exit module)");
437
438module_param_named_unsafe(perf_selftests, i915_selftest.perf, int, 0400);
439MODULE_PARM_DESC(perf_selftests, "Run performance orientated selftests after driver initialisation on the live system (0:disabled [default], 1:run tests then continue, -1:run tests then exit module)");
440
