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 #ifndef __I915_SELFTEST_H__ 25 #define __I915_SELFTEST_H__ 26 27 struct pci_dev; 28 struct drm_i915_private; 29 30 struct i915_selftest { 31 unsigned long timeout_jiffies; 32 unsigned int timeout_ms; 33 unsigned int random_seed; 34 int mock; 35 int live; 36 }; 37 38 #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) 39 #include <linux/fault-inject.h> 40 41 extern struct i915_selftest i915_selftest; 42 43 int i915_mock_selftests(void); 44 int i915_live_selftests(struct pci_dev *pdev); 45 46 /* We extract the function declarations from i915_mock_selftests.h and 47 * i915_live_selftests.h Add your unit test declarations there! 48 * 49 * Mock unit tests are run very early upon module load, before the driver 50 * is probed. All hardware interactions, as well as other subsystems, must 51 * be "mocked". 52 * 53 * Live unit tests are run after the driver is loaded - all hardware 54 * interactions are real. 55 */ 56 #define selftest(name, func) int func(void); 57 #include "selftests/i915_mock_selftests.h" 58 #undef selftest 59 #define selftest(name, func) int func(struct drm_i915_private *i915); 60 #include "selftests/i915_live_selftests.h" 61 #undef selftest 62 63 struct i915_subtest { 64 int (*func)(void *data); 65 const char *name; 66 }; 67 68 int __i915_subtests(const char *caller, 69 const struct i915_subtest *st, 70 unsigned int count, 71 void *data); 72 #define i915_subtests(T, data) \ 73 __i915_subtests(__func__, T, ARRAY_SIZE(T), data) 74 75 #define SUBTEST(x) { x, #x } 76 77 #define I915_SELFTEST_DECLARE(x) x 78 #define I915_SELFTEST_ONLY(x) unlikely(x) 79 80 #else /* !IS_ENABLED(CONFIG_DRM_I915_SELFTEST) */ 81 82 static inline int i915_mock_selftests(void) { return 0; } 83 static inline int i915_live_selftests(struct pci_dev *pdev) { return 0; } 84 85 #define I915_SELFTEST_DECLARE(x) 86 #define I915_SELFTEST_ONLY(x) 0 87 88 #endif 89 90 /* Using the i915_selftest_ prefix becomes a little unwieldy with the helpers. 91 * Instead we use the igt_ shorthand, in reference to the intel-gpu-tools 92 * suite of uabi test cases (which includes a test runner for our selftests). 93 */ 94 95 #define IGT_TIMEOUT(name__) \ 96 unsigned long name__ = jiffies + i915_selftest.timeout_jiffies 97 98 __printf(2, 3) 99 bool __igt_timeout(unsigned long timeout, const char *fmt, ...); 100 101 #define igt_timeout(t, fmt, ...) \ 102 __igt_timeout((t), KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) 103 104 #endif /* !__I915_SELFTEST_H__ */ 105