2 * Copyright © 2016 Intel Corporation
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:
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
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
24 #include <linux/random.h>
26 #include "gt/intel_gt_pm.h"
28 #include "i915_selftest.h"
30 #include "igt_flush_test.h"
32 struct i915_selftest i915_selftest __read_mostly = {
36 int i915_mock_sanitycheck(void)
38 pr_info(DRIVER_NAME ": %s() - ok!\n", __func__);
42 int i915_live_sanitycheck(struct drm_i915_private *i915)
44 pr_info("%s: %s() - ok!\n", i915->drm.driver->name, __func__);
49 #define selftest(name, func) mock_##name,
50 #include "i915_mock_selftests.h"
55 #define selftest(name, func) live_##name,
56 #include "i915_live_selftests.h"
61 #define selftest(name, func) perf_##name,
62 #include "i915_perf_selftests.h"
71 int (*live)(struct drm_i915_private *);
75 #define selftest(n, f) [mock_##n] = { .name = #n, { .mock = f } },
76 static struct selftest mock_selftests[] = {
77 #include "i915_mock_selftests.h"
81 #define selftest(n, f) [live_##n] = { .name = #n, { .live = f } },
82 static struct selftest live_selftests[] = {
83 #include "i915_live_selftests.h"
87 #define selftest(n, f) [perf_##n] = { .name = #n, { .live = f } },
88 static struct selftest perf_selftests[] = {
89 #include "i915_perf_selftests.h"
93 /* Embed the line number into the parameter name so that we can order tests */
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) \
97 module_param_named(id, mock_selftests[mock_##n].enabled, bool, 0400);
98 #include "i915_mock_selftests.h"
102 #define param(n) __PASTE(igt__, __PASTE(__LINE__, __live_##n))
103 #define selftest_0(n, func, id) \
104 module_param_named(id, live_selftests[live_##n].enabled, bool, 0400);
105 #include "i915_live_selftests.h"
109 #define param(n) __PASTE(igt__, __PASTE(__LINE__, __perf_##n))
110 #define selftest_0(n, func, id) \
111 module_param_named(id, perf_selftests[perf_##n].enabled, bool, 0400);
112 #include "i915_perf_selftests.h"
117 static void set_default_test_all(struct selftest *st, unsigned int count)
121 for (i = 0; i < count; i++)
125 for (i = 0; i < count; i++)
126 st[i].enabled = true;
129 static int __run_selftests(const char *name,
136 while (!i915_selftest.random_seed)
137 i915_selftest.random_seed = get_random_int();
139 i915_selftest.timeout_jiffies =
140 i915_selftest.timeout_ms ?
141 msecs_to_jiffies_timeout(i915_selftest.timeout_ms) :
142 MAX_SCHEDULE_TIMEOUT;
144 set_default_test_all(st, count);
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);
149 /* Tests are listed in order in i915_*_selftests.h */
150 for (; count--; st++) {
155 if (signal_pending(current))
158 pr_info(DRIVER_NAME ": Running %s\n", st->name);
160 err = st->live(data);
163 if (err == -EINTR && !signal_pending(current))
169 if (WARN(err > 0 || err == -ENOTTY,
170 "%s returned %d, conflicting with selftest's magic values!\n",
177 #define run_selftests(x, data) \
178 __run_selftests(#x, x##_selftests, ARRAY_SIZE(x##_selftests), data)
180 int i915_mock_selftests(void)
184 if (!i915_selftest.mock)
187 err = run_selftests(mock, NULL);
189 i915_selftest.mock = err;
193 if (i915_selftest.mock < 0) {
194 i915_selftest.mock = -ENOTTY;
201 int i915_live_selftests(struct pci_dev *pdev)
205 if (!i915_selftest.live)
208 err = run_selftests(live, pdev_to_i915(pdev));
210 i915_selftest.live = err;
214 if (i915_selftest.live < 0) {
215 i915_selftest.live = -ENOTTY;
222 int i915_perf_selftests(struct pci_dev *pdev)
226 if (!i915_selftest.perf)
229 err = run_selftests(perf, pdev_to_i915(pdev));
231 i915_selftest.perf = err;
235 if (i915_selftest.perf < 0) {
236 i915_selftest.perf = -ENOTTY;
243 static bool apply_subtest_filter(const char *caller, const char *name)
245 char *filter, *sep, *tok;
248 filter = kstrdup(i915_selftest.filter, GFP_KERNEL);
249 for (sep = filter; (tok = strsep(&sep, ","));) {
261 sl = strchr(tok, '/');
264 if (strcmp(tok, caller)) {
272 if (strcmp(tok, name)) {
286 int __i915_nop_setup(void *data)
291 int __i915_nop_teardown(int err, void *data)
296 int __i915_live_setup(void *data)
298 struct drm_i915_private *i915 = data;
300 /* The selftests expect an idle system */
301 if (intel_gt_pm_wait_for_idle(&i915->gt))
304 return intel_gt_terminally_wedged(&i915->gt);
307 int __i915_live_teardown(int err, void *data)
309 struct drm_i915_private *i915 = data;
311 if (igt_flush_test(i915))
314 i915_gem_drain_freed_objects(i915);
319 int __intel_gt_live_setup(void *data)
321 struct intel_gt *gt = data;
323 /* The selftests expect an idle system */
324 if (intel_gt_pm_wait_for_idle(gt))
327 return intel_gt_terminally_wedged(gt);
330 int __intel_gt_live_teardown(int err, void *data)
332 struct intel_gt *gt = data;
334 if (igt_flush_test(gt->i915))
337 i915_gem_drain_freed_objects(gt->i915);
342 int __i915_subtests(const char *caller,
343 int (*setup)(void *data),
344 int (*teardown)(int err, void *data),
345 const struct i915_subtest *st,
351 for (; count--; st++) {
353 if (signal_pending(current))
356 if (!apply_subtest_filter(caller, st->name))
361 pr_err(DRIVER_NAME "/%s: setup failed for %s\n",
366 pr_info(DRIVER_NAME ": Running %s/%s\n", caller, st->name);
367 GEM_TRACE("Running %s/%s\n", caller, st->name);
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);
380 bool __igt_timeout(unsigned long timeout, const char *fmt, ...)
384 if (!signal_pending(current)) {
386 if (time_before(jiffies, timeout))
399 void igt_hexdump(const void *buf, size_t len)
401 const size_t rowsize = 8 * sizeof(u32);
402 const void *prev = NULL;
406 for (pos = 0; pos < len; pos += rowsize) {
409 if (prev && !memcmp(prev, buf + pos, rowsize)) {
417 WARN_ON_ONCE(hex_dump_to_buffer(buf + pos, len - pos,
418 rowsize, sizeof(u32),
420 false) >= sizeof(line));
421 pr_info("[%04zx] %s\n", pos, line);
428 module_param_named(st_random_seed, i915_selftest.random_seed, uint, 0400);
429 module_param_named(st_timeout, i915_selftest.timeout_ms, uint, 0400);
430 module_param_named(st_filter, i915_selftest.filter, charp, 0400);
432 module_param_named_unsafe(mock_selftests, i915_selftest.mock, int, 0400);
433 MODULE_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)");
435 module_param_named_unsafe(live_selftests, i915_selftest.live, int, 0400);
436 MODULE_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 module_param_named_unsafe(perf_selftests, i915_selftest.perf, int, 0400);
439 MODULE_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)");