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24#include <linux/random.h>
25
26#include "gt/intel_gt_pm.h"
27#include "i915_driver.h"
28#include "i915_drv.h"
29#include "i915_selftest.h"
30
31#include "igt_flush_test.h"
32
33struct i915_selftest i915_selftest __read_mostly = {
34 .timeout_ms = 500,
35};
36
37int i915_mock_sanitycheck(void)
38{
39 pr_info(DRIVER_NAME ": %s() - ok!\n", __func__);
40 return 0;
41}
42
43int i915_live_sanitycheck(struct drm_i915_private *i915)
44{
45 pr_info("%s: %s() - ok!\n", i915->drm.driver->name, __func__);
46 return 0;
47}
48
49enum {
50#define selftest(name, func) mock_##name,
51#include "i915_mock_selftests.h"
52#undef selftest
53};
54
55enum {
56#define selftest(name, func) live_##name,
57#include "i915_live_selftests.h"
58#undef selftest
59};
60
61enum {
62#define selftest(name, func) perf_##name,
63#include "i915_perf_selftests.h"
64#undef selftest
65};
66
67struct selftest {
68 bool enabled;
69 const char *name;
70 union {
71 int (*mock)(void);
72 int (*live)(struct drm_i915_private *);
73 };
74};
75
76#define selftest(n, f) [mock_##n] = { .name = #n, { .mock = f } },
77static struct selftest mock_selftests[] = {
78#include "i915_mock_selftests.h"
79};
80#undef selftest
81
82#define selftest(n, f) [live_##n] = { .name = #n, { .live = f } },
83static struct selftest live_selftests[] = {
84#include "i915_live_selftests.h"
85};
86#undef selftest
87
88#define selftest(n, f) [perf_##n] = { .name = #n, { .live = f } },
89static struct selftest perf_selftests[] = {
90#include "i915_perf_selftests.h"
91};
92#undef selftest
93
94
95#define selftest(n, func) selftest_0(n, func, param(n))
96#define param(n) __PASTE(igt__, __PASTE(__LINE__, __mock_##n))
97#define selftest_0(n, func, id) \
98module_param_named(id, mock_selftests[mock_##n].enabled, bool, 0400);
99#include "i915_mock_selftests.h"
100#undef selftest_0
101#undef param
102
103#define param(n) __PASTE(igt__, __PASTE(__LINE__, __live_##n))
104#define selftest_0(n, func, id) \
105module_param_named(id, live_selftests[live_##n].enabled, bool, 0400);
106#include "i915_live_selftests.h"
107#undef selftest_0
108#undef param
109
110#define param(n) __PASTE(igt__, __PASTE(__LINE__, __perf_##n))
111#define selftest_0(n, func, id) \
112module_param_named(id, perf_selftests[perf_##n].enabled, bool, 0400);
113#include "i915_perf_selftests.h"
114#undef selftest_0
115#undef param
116#undef selftest
117
118static void set_default_test_all(struct selftest *st, unsigned int count)
119{
120 unsigned int i;
121
122 for (i = 0; i < count; i++)
123 if (st[i].enabled)
124 return;
125
126 for (i = 0; i < count; i++)
127 st[i].enabled = true;
128}
129
130static int __run_selftests(const char *name,
131 struct selftest *st,
132 unsigned int count,
133 void *data)
134{
135 int err = 0;
136
137 while (!i915_selftest.random_seed)
138 i915_selftest.random_seed = get_random_int();
139
140 i915_selftest.timeout_jiffies =
141 i915_selftest.timeout_ms ?
142 msecs_to_jiffies_timeout(i915_selftest.timeout_ms) :
143 MAX_SCHEDULE_TIMEOUT;
144
145 set_default_test_all(st, count);
146
147 pr_info(DRIVER_NAME ": Performing %s selftests with st_random_seed=0x%x st_timeout=%u\n",
148 name, i915_selftest.random_seed, i915_selftest.timeout_ms);
149
150
151 for (; count--; st++) {
152 if (!st->enabled)
153 continue;
154
155 cond_resched();
156 if (signal_pending(current))
157 return -EINTR;
158
159 pr_info(DRIVER_NAME ": Running %s\n", st->name);
160 if (data)
161 err = st->live(data);
162 else
163 err = st->mock();
164 if (err == -EINTR && !signal_pending(current))
165 err = 0;
166 if (err)
167 break;
168 }
169
170 if (WARN(err > 0 || err == -ENOTTY,
171 "%s returned %d, conflicting with selftest's magic values!\n",
172 st->name, err))
173 err = -1;
174
175 return err;
176}
177
178#define run_selftests(x, data) \
179 __run_selftests(#x, x##_selftests, ARRAY_SIZE(x##_selftests), data)
180
181int i915_mock_selftests(void)
182{
183 int err;
184
185 if (!i915_selftest.mock)
186 return 0;
187
188 err = run_selftests(mock, NULL);
189 if (err) {
190 i915_selftest.mock = err;
191 return 1;
192 }
193
194 if (i915_selftest.mock < 0) {
195 i915_selftest.mock = -ENOTTY;
196 return 1;
197 }
198
199 return 0;
200}
201
202int i915_live_selftests(struct pci_dev *pdev)
203{
204 int err;
205
206 if (!i915_selftest.live)
207 return 0;
208
209 err = run_selftests(live, pdev_to_i915(pdev));
210 if (err) {
211 i915_selftest.live = err;
212 return err;
213 }
214
215 if (i915_selftest.live < 0) {
216 i915_selftest.live = -ENOTTY;
217 return 1;
218 }
219
220 return 0;
221}
222
223int i915_perf_selftests(struct pci_dev *pdev)
224{
225 int err;
226
227 if (!i915_selftest.perf)
228 return 0;
229
230 err = run_selftests(perf, pdev_to_i915(pdev));
231 if (err) {
232 i915_selftest.perf = err;
233 return err;
234 }
235
236 if (i915_selftest.perf < 0) {
237 i915_selftest.perf = -ENOTTY;
238 return 1;
239 }
240
241 return 0;
242}
243
244static bool apply_subtest_filter(const char *caller, const char *name)
245{
246 char *filter, *sep, *tok;
247 bool result = true;
248
249 filter = kstrdup(i915_selftest.filter, GFP_KERNEL);
250 for (sep = filter; (tok = strsep(&sep, ","));) {
251 bool allow = true;
252 char *sl;
253
254 if (*tok == '!') {
255 allow = false;
256 tok++;
257 }
258
259 if (*tok == '\0')
260 continue;
261
262 sl = strchr(tok, '/');
263 if (sl) {
264 *sl++ = '\0';
265 if (strcmp(tok, caller)) {
266 if (allow)
267 result = false;
268 continue;
269 }
270 tok = sl;
271 }
272
273 if (strcmp(tok, name)) {
274 if (allow)
275 result = false;
276 continue;
277 }
278
279 result = allow;
280 break;
281 }
282 kfree(filter);
283
284 return result;
285}
286
287int __i915_nop_setup(void *data)
288{
289 return 0;
290}
291
292int __i915_nop_teardown(int err, void *data)
293{
294 return err;
295}
296
297int __i915_live_setup(void *data)
298{
299 struct drm_i915_private *i915 = data;
300
301
302 if (intel_gt_pm_wait_for_idle(to_gt(i915)))
303 return -EIO;
304
305 return intel_gt_terminally_wedged(to_gt(i915));
306}
307
308int __i915_live_teardown(int err, void *data)
309{
310 struct drm_i915_private *i915 = data;
311
312 if (igt_flush_test(i915))
313 err = -EIO;
314
315 i915_gem_drain_freed_objects(i915);
316
317 return err;
318}
319
320int __intel_gt_live_setup(void *data)
321{
322 struct intel_gt *gt = data;
323
324
325 if (intel_gt_pm_wait_for_idle(gt))
326 return -EIO;
327
328 return intel_gt_terminally_wedged(gt);
329}
330
331int __intel_gt_live_teardown(int err, void *data)
332{
333 struct intel_gt *gt = data;
334
335 if (igt_flush_test(gt->i915))
336 err = -EIO;
337
338 i915_gem_drain_freed_objects(gt->i915);
339
340 return err;
341}
342
343int __i915_subtests(const char *caller,
344 int (*setup)(void *data),
345 int (*teardown)(int err, void *data),
346 const struct i915_subtest *st,
347 unsigned int count,
348 void *data)
349{
350 int err;
351
352 for (; count--; st++) {
353 cond_resched();
354 if (signal_pending(current))
355 return -EINTR;
356
357 if (!apply_subtest_filter(caller, st->name))
358 continue;
359
360 err = setup(data);
361 if (err) {
362 pr_err(DRIVER_NAME "/%s: setup failed for %s\n",
363 caller, st->name);
364 return err;
365 }
366
367 pr_info(DRIVER_NAME ": Running %s/%s\n", caller, st->name);
368 GEM_TRACE("Running %s/%s\n", caller, st->name);
369
370 err = teardown(st->func(data), data);
371 if (err && err != -EINTR) {
372 pr_err(DRIVER_NAME "/%s: %s failed with error %d\n",
373 caller, st->name, err);
374 return err;
375 }
376 }
377
378 return 0;
379}
380
381bool __igt_timeout(unsigned long timeout, const char *fmt, ...)
382{
383 va_list va;
384
385 if (!signal_pending(current)) {
386 cond_resched();
387 if (time_before(jiffies, timeout))
388 return false;
389 }
390
391 if (fmt) {
392 va_start(va, fmt);
393 vprintk(fmt, va);
394 va_end(va);
395 }
396
397 return true;
398}
399
400void igt_hexdump(const void *buf, size_t len)
401{
402 const size_t rowsize = 8 * sizeof(u32);
403 const void *prev = NULL;
404 bool skip = false;
405 size_t pos;
406
407 for (pos = 0; pos < len; pos += rowsize) {
408 char line[128];
409
410 if (prev && !memcmp(prev, buf + pos, rowsize)) {
411 if (!skip) {
412 pr_info("*\n");
413 skip = true;
414 }
415 continue;
416 }
417
418 WARN_ON_ONCE(hex_dump_to_buffer(buf + pos, len - pos,
419 rowsize, sizeof(u32),
420 line, sizeof(line),
421 false) >= sizeof(line));
422 pr_info("[%04zx] %s\n", pos, line);
423
424 prev = buf + pos;
425 skip = false;
426 }
427}
428
429module_param_named(st_random_seed, i915_selftest.random_seed, uint, 0400);
430module_param_named(st_timeout, i915_selftest.timeout_ms, uint, 0400);
431module_param_named(st_filter, i915_selftest.filter, charp, 0400);
432
433module_param_named_unsafe(mock_selftests, i915_selftest.mock, int, 0400);
434MODULE_PARM_DESC(mock_selftests, "Run selftests before loading, using mock hardware (0:disabled [default], 1:run tests then load driver, -1:run tests then leave dummy module)");
435
436module_param_named_unsafe(live_selftests, i915_selftest.live, int, 0400);
437MODULE_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)");
438
439module_param_named_unsafe(perf_selftests, i915_selftest.perf, int, 0400);
440MODULE_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)");
441
