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 igt_flush_test(struct drm_i915_private * i915)15int 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