diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_selftest.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_selftest.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_selftest.h b/drivers/gpu/drm/i915/i915_selftest.h new file mode 100644 index 000000000..a73472dd1 --- /dev/null +++ b/drivers/gpu/drm/i915/i915_selftest.h @@ -0,0 +1,104 @@ +/* + * Copyright © 2016 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef __I915_SELFTEST_H__ +#define __I915_SELFTEST_H__ + +struct pci_dev; +struct drm_i915_private; + +struct i915_selftest { + unsigned long timeout_jiffies; + unsigned int timeout_ms; + unsigned int random_seed; + int mock; + int live; +}; + +#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) +#include <linux/fault-inject.h> + +extern struct i915_selftest i915_selftest; + +int i915_mock_selftests(void); +int i915_live_selftests(struct pci_dev *pdev); + +/* We extract the function declarations from i915_mock_selftests.h and + * i915_live_selftests.h Add your unit test declarations there! + * + * Mock unit tests are run very early upon module load, before the driver + * is probed. All hardware interactions, as well as other subsystems, must + * be "mocked". + * + * Live unit tests are run after the driver is loaded - all hardware + * interactions are real. + */ +#define selftest(name, func) int func(void); +#include "selftests/i915_mock_selftests.h" +#undef selftest +#define selftest(name, func) int func(struct drm_i915_private *i915); +#include "selftests/i915_live_selftests.h" +#undef selftest + +struct i915_subtest { + int (*func)(void *data); + const char *name; +}; + +int __i915_subtests(const char *caller, + const struct i915_subtest *st, + unsigned int count, + void *data); +#define i915_subtests(T, data) \ + __i915_subtests(__func__, T, ARRAY_SIZE(T), data) + +#define SUBTEST(x) { x, #x } + +#define I915_SELFTEST_DECLARE(x) x +#define I915_SELFTEST_ONLY(x) unlikely(x) + +#else /* !IS_ENABLED(CONFIG_DRM_I915_SELFTEST) */ + +static inline int i915_mock_selftests(void) { return 0; } +static inline int i915_live_selftests(struct pci_dev *pdev) { return 0; } + +#define I915_SELFTEST_DECLARE(x) +#define I915_SELFTEST_ONLY(x) 0 + +#endif + +/* Using the i915_selftest_ prefix becomes a little unwieldy with the helpers. + * Instead we use the igt_ shorthand, in reference to the intel-gpu-tools + * suite of uabi test cases (which includes a test runner for our selftests). + */ + +#define IGT_TIMEOUT(name__) \ + unsigned long name__ = jiffies + i915_selftest.timeout_jiffies + +__printf(2, 3) +bool __igt_timeout(unsigned long timeout, const char *fmt, ...); + +#define igt_timeout(t, fmt, ...) \ + __igt_timeout((t), KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) + +#endif /* !__I915_SELFTEST_H__ */ |