drivers/gpu/drm/i915/selftests/igt_flush_test.c

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright © 2018 Intel Corporation
   5  */
   6
   7 #include "../i915_drv.h"
   8
   9 #include "../i915_selftest.h"
  10 #include "igt_flush_test.h"
  11
  12 int igt_flush_test(struct drm_i915_private *i915, unsigned int flags)
  13 {
  14         cond_resched();
  15
  16         if (flags & I915_WAIT_LOCKED &&
  17             i915_gem_switch_to_kernel_context(i915)) {
  18                 pr_err("Failed to switch back to kernel context; declaring wedged\n");
  19                 i915_gem_set_wedged(i915);
  20         }
  21
  22         if (i915_gem_wait_for_idle(i915, flags, HZ / 5) == -ETIME) {
  23                 pr_err("%pS timed out, cancelling all further testing.\n",
  24                        __builtin_return_address(0));
  25
  26                 GEM_TRACE("%pS timed out.\n", __builtin_return_address(0));
  27                 GEM_TRACE_DUMP();
  28
  29                 i915_gem_set_wedged(i915);
  30         }
  31
  32         return i915_terminally_wedged(&i915->gpu_error) ? -EIO : 0;
  33 }