| Chris Wilson | 50f0033 | 2016-12-22 08:36:09 +0000 | [diff] [blame] | 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 | #include <linux/compiler.h> |
| 25 | |
| 26 | #define selftest(name, func) __idx_##name, |
| 27 | enum { |
| 28 | #include TESTS |
| 29 | }; |
| 30 | #undef selftest |
| 31 | |
| 32 | #define selftest(n, f) [__idx_##n] = { .name = #n, .func = f }, |
| 33 | static struct drm_selftest { |
| 34 | bool enabled; |
| 35 | const char *name; |
| 36 | int (*func)(void *); |
| 37 | } selftests[] = { |
| 38 | #include TESTS |
| 39 | }; |
| 40 | #undef selftest |
| 41 | |
| 42 | /* Embed the line number into the parameter name so that we can order tests */ |
| 43 | #define param(n) __PASTE(igt__, __PASTE(__PASTE(__LINE__, __), n)) |
| 44 | #define selftest_0(n, func, id) \ |
| 45 | module_param_named(id, selftests[__idx_##n].enabled, bool, 0400); |
| 46 | #define selftest(n, func) selftest_0(n, func, param(n)) |
| 47 | #include TESTS |
| 48 | #undef selftest |
| 49 | |
| 50 | static void set_default_test_all(struct drm_selftest *st, unsigned long count) |
| 51 | { |
| 52 | unsigned long i; |
| 53 | |
| 54 | for (i = 0; i < count; i++) |
| 55 | if (st[i].enabled) |
| 56 | return; |
| 57 | |
| 58 | for (i = 0; i < count; i++) |
| 59 | st[i].enabled = true; |
| 60 | } |
| 61 | |
| 62 | static int run_selftests(struct drm_selftest *st, |
| 63 | unsigned long count, |
| 64 | void *data) |
| 65 | { |
| 66 | int err = 0; |
| 67 | |
| 68 | set_default_test_all(st, count); |
| 69 | |
| 70 | /* Tests are listed in natural order in drm_*_selftests.h */ |
| 71 | for (; count--; st++) { |
| 72 | if (!st->enabled) |
| 73 | continue; |
| 74 | |
| 75 | pr_debug("drm: Running %s\n", st->name); |
| 76 | err = st->func(data); |
| 77 | if (err) |
| 78 | break; |
| 79 | } |
| 80 | |
| 81 | if (WARN(err > 0 || err == -ENOTTY, |
| 82 | "%s returned %d, conflicting with selftest's magic values!\n", |
| 83 | st->name, err)) |
| 84 | err = -1; |
| 85 | |
| 86 | rcu_barrier(); |
| 87 | return err; |
| 88 | } |
| 89 | |
| 90 | static int __maybe_unused |
| 91 | __drm_subtests(const char *caller, |
| 92 | const struct drm_subtest *st, |
| 93 | int count, |
| 94 | void *data) |
| 95 | { |
| 96 | int err; |
| 97 | |
| 98 | for (; count--; st++) { |
| 99 | pr_debug("Running %s/%s\n", caller, st->name); |
| 100 | err = st->func(data); |
| 101 | if (err) { |
| 102 | pr_err("%s: %s failed with error %d\n", |
| 103 | caller, st->name, err); |
| 104 | return err; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | return 0; |
| 109 | } |