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

DEFINITIONS

1. igt_flush_test

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright © 2018 Intel Corporation
   5  */
   6 
   7 #include "gem/i915_gem_context.h"
   8 #include "gt/intel_gt.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, unsigned int flags)
  16 {
  17         int ret = intel_gt_is_wedged(&i915->gt) ? -EIO : 0;
  18         int repeat = !!(flags & I915_WAIT_LOCKED);
  19 
  20         cond_resched();
  21 
  22         do {
  23                 if (i915_gem_wait_for_idle(i915, flags, HZ / 5) == -ETIME) {
  24                         pr_err("%pS timed out, cancelling all further testing.\n",
  25                                __builtin_return_address(0));
  26 
  27                         GEM_TRACE("%pS timed out.\n",
  28                                   __builtin_return_address(0));
  29                         GEM_TRACE_DUMP();
  30 
  31                         intel_gt_set_wedged(&i915->gt);
  32                         repeat = 0;
  33                         ret = -EIO;
  34                 }
  35 
  36                 /* Ensure we also flush after wedging. */
  37                 if (flags & I915_WAIT_LOCKED)
  38                         i915_retire_requests(i915);
  39         } while (repeat--);
  40 
  41         return ret;
  42 }