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 "gem/i915_gem_context.h"
   8
   9 #include "i915_drv.h"
  10 #include "i915_selftest.h"
  11
  12 #include "igt_flush_test.h"
  13
  14 int igt_flush_test(struct drm_i915_private *i915, unsigned int flags)
  15 {
  16         int ret = i915_terminally_wedged(i915) ? -EIO : 0;
  17         int repeat = !!(flags & I915_WAIT_LOCKED);
  18
  19         cond_resched();
  20
  21         do {
  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",
  27                                   __builtin_return_address(0));
  28                         GEM_TRACE_DUMP();
  29
  30                         i915_gem_set_wedged(i915);
  31                         repeat = 0;
  32                         ret = -EIO;
  33                 }
  34
  35                 /* Ensure we also flush after wedging. */
  36                 if (flags & I915_WAIT_LOCKED)
  37                         i915_retire_requests(i915);
  38         } while (repeat--);
  39
  40         return ret;
  41 }