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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 : : __i915_subtests(__func__, \
96 : : __i915_live_setup, __i915_live_teardown, \
97 : : T, ARRAY_SIZE(T), data); \
98 : : })
99 : : #define intel_gt_live_subtests(T, data) ({ \
100 : : typecheck(struct intel_gt *, data); \
101 : : __i915_subtests(__func__, \
102 : : __intel_gt_live_setup, __intel_gt_live_teardown, \
103 : : T, ARRAY_SIZE(T), data); \
104 : : })
105 : :
106 : : #define SUBTEST(x) { x, #x }
107 : :
108 : : #define I915_SELFTEST_DECLARE(x) x
109 : : #define I915_SELFTEST_ONLY(x) unlikely(x)
110 : :
111 : : #else /* !IS_ENABLED(CONFIG_DRM_I915_SELFTEST) */
112 : :
113 [ - + ]: 30 : static inline int i915_mock_selftests(void) { return 0; }
114 : : static inline int i915_live_selftests(struct pci_dev *pdev) { return 0; }
115 : : static inline int i915_perf_selftests(struct pci_dev *pdev) { return 0; }
116 : :
117 : : #define I915_SELFTEST_DECLARE(x)
118 : : #define I915_SELFTEST_ONLY(x) 0
119 : :
120 : : #endif
121 : :
122 : : /* Using the i915_selftest_ prefix becomes a little unwieldy with the helpers.
123 : : * Instead we use the igt_ shorthand, in reference to the intel-gpu-tools
124 : : * suite of uabi test cases (which includes a test runner for our selftests).
125 : : */
126 : :
127 : : #define IGT_TIMEOUT(name__) \
128 : : unsigned long name__ = jiffies + i915_selftest.timeout_jiffies
129 : :
130 : : __printf(2, 3)
131 : : bool __igt_timeout(unsigned long timeout, const char *fmt, ...);
132 : :
133 : : #define igt_timeout(t, fmt, ...) \
134 : : __igt_timeout((t), KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
135 : :
136 : : #endif /* !__I915_SELFTEST_H__ */
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