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 #include <linux/types.h>
28
29 struct pci_dev;
30 struct drm_i915_private;
31
32 struct i915_selftest {
33 unsigned long timeout_jiffies;
34 unsigned int timeout_ms;
35 unsigned int random_seed;
36 char *filter;
37 int mock;
38 int live;
39 int perf;
40 };
41
42 #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
43 #include <linux/fault-inject.h>
44
45 extern struct i915_selftest i915_selftest;
46
47 int i915_mock_selftests(void);
48 int i915_live_selftests(struct pci_dev *pdev);
49 int i915_perf_selftests(struct pci_dev *pdev);
50
51 /* We extract the function declarations from i915_mock_selftests.h and
52 * i915_live_selftests.h Add your unit test declarations there!
53 *
54 * Mock unit tests are run very early upon module load, before the driver
55 * is probed. All hardware interactions, as well as other subsystems, must
56 * be "mocked".
57 *
58 * Live unit tests are run after the driver is loaded - all hardware
59 * interactions are real.
60 */
61 #define selftest(name, func) int func(void);
62 #include "selftests/i915_mock_selftests.h"
63 #undef selftest
64 #define selftest(name, func) int func(struct drm_i915_private *i915);
65 #include "selftests/i915_live_selftests.h"
66 #include "selftests/i915_perf_selftests.h"
67 #undef selftest
68
69 struct i915_subtest {
70 int (*func)(void *data);
71 const char *name;
72 };
73
74 int __i915_nop_setup(void *data);
75 int __i915_nop_teardown(int err, void *data);
76
77 int __i915_live_setup(void *data);
78 int __i915_live_teardown(int err, void *data);
79
80 int __intel_gt_live_setup(void *data);
81 int __intel_gt_live_teardown(int err, void *data);
82
83 int __i915_subtests(const char *caller,
84 int (*setup)(void *data),
85 int (*teardown)(int err, void *data),
86 const struct i915_subtest *st,
87 unsigned int count,
88 void *data);
89 #define i915_subtests(T, data) \
90 __i915_subtests(__func__, \
91 __i915_nop_setup, __i915_nop_teardown, \
92 T, ARRAY_SIZE(T), data)
93 #define i915_live_subtests(T, data) ({ \
94 typecheck(struct drm_i915_private *, data); \
95 (data)->gt[0]->uc.guc.submission_state.sched_disable_delay_ms = 0; \
96 __i915_subtests(__func__, \
97 __i915_live_setup, __i915_live_teardown, \
98 T, ARRAY_SIZE(T), data); \
99 })
100 #define intel_gt_live_subtests(T, data) ({ \
101 typecheck(struct intel_gt *, data); \
102 (data)->uc.guc.submission_state.sched_disable_delay_ms = 0; \
103 __i915_subtests(__func__, \
104 __intel_gt_live_setup, __intel_gt_live_teardown, \
105 T, ARRAY_SIZE(T), data); \
106 })
107
108 #define SUBTEST(x) { x, #x }
109
110 #define I915_SELFTEST_DECLARE(x) x
111 #define I915_SELFTEST_ONLY(x) unlikely(x)
112 #define I915_SELFTEST_EXPORT
113
114 #else /* !IS_ENABLED(CONFIG_DRM_I915_SELFTEST) */
115
i915_mock_selftests(void)116 static inline int i915_mock_selftests(void) { return 0; }
i915_live_selftests(struct pci_dev * pdev)117 static inline int i915_live_selftests(struct pci_dev *pdev) { return 0; }
i915_perf_selftests(struct pci_dev * pdev)118 static inline int i915_perf_selftests(struct pci_dev *pdev) { return 0; }
119
120 #define I915_SELFTEST_DECLARE(x)
121 #define I915_SELFTEST_ONLY(x) 0
122 #define I915_SELFTEST_EXPORT static
123
124 #endif
125
126 /* Using the i915_selftest_ prefix becomes a little unwieldy with the helpers.
127 * Instead we use the igt_ shorthand, in reference to the intel-gpu-tools
128 * suite of uabi test cases (which includes a test runner for our selftests).
129 */
130
131 #define IGT_TIMEOUT(name__) \
132 unsigned long name__ = jiffies + i915_selftest.timeout_jiffies
133
134 __printf(2, 3)
135 bool __igt_timeout(unsigned long timeout, const char *fmt, ...);
136
137 #define igt_timeout(t, fmt, ...) \
138 __igt_timeout((t), KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
139
140 void igt_hexdump(const void *buf, size_t len);
141
142 #endif /* !__I915_SELFTEST_H__ */
143