| 1 | /* |
|---|---|
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright © 2018 Intel Corporation |
| 5 | */ |
| 6 | |
| 7 | #include "gt/intel_gt.h" |
| 8 | #include "gt/intel_gt_requests.h" |
| 9 | |
| 10 | #include "i915_drv.h" |
| 11 | #include "i915_selftest.h" |
| 12 | |
| 13 | #include "igt_flush_test.h" |
| 14 | |
| 15 | int igt_flush_test(struct drm_i915_private *i915) |
| 16 | { |
| 17 | struct intel_gt *gt; |
| 18 | unsigned int i; |
| 19 | int ret = 0; |
| 20 | |
| 21 | for_each_gt(gt, i915, i) { |
| 22 | struct intel_engine_cs *engine; |
| 23 | unsigned long timeout_ms = 0; |
| 24 | unsigned int id; |
| 25 | |
| 26 | if (intel_gt_is_wedged(gt)) |
| 27 | ret = -EIO; |
| 28 | |
| 29 | for_each_engine(engine, gt, id) { |
| 30 | if (engine->props.preempt_timeout_ms > timeout_ms) |
| 31 | timeout_ms = engine->props.preempt_timeout_ms; |
| 32 | } |
| 33 | |
| 34 | cond_resched(); |
| 35 | |
| 36 | /* 2x longest preempt timeout, experimentally determined */ |
| 37 | if (intel_gt_wait_for_idle(gt, HZ * timeout_ms / 500) == -ETIME) { |
| 38 | pr_err("%pS timed out, cancelling all further testing.\n", |
| 39 | __builtin_return_address(0)); |
| 40 | |
| 41 | GEM_TRACE("%pS timed out.\n", |
| 42 | __builtin_return_address(0)); |
| 43 | GEM_TRACE_DUMP(); |
| 44 | |
| 45 | intel_gt_set_wedged(gt); |
| 46 | ret = -EIO; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | return ret; |
| 51 | } |
| 52 |