bool igt_force_reset(struct drm_i915_private *i915)
{
i915_gem_set_wedged(i915);
i915_reset(i915, 0, NULL);
return !i915_reset_failed(i915);
}
static int igt_global_reset(void *arg)
{
struct drm_i915_private *i915 = arg;
unsigned int reset_count;
int err = 0;
/* Check that we can issue a global GPU reset */
igt_global_reset_lock(i915);
reset_count = i915_reset_count(&i915->gpu_error);
i915_reset(i915, ALL_ENGINES, NULL);
if (i915_reset_count(&i915->gpu_error) == reset_count) {
pr_err("No GPU reset recorded!\n");
err = -EINVAL;
}
igt_global_reset_unlock(i915);
if (i915_reset_failed(i915))
err = -EIO;
return err;
}
static int igt_global_reset(void *arg)
{
struct drm_i915_private *i915 = arg;
unsigned int reset_count;
int err = 0;
/* Check that we can issue a global GPU reset */
igt_global_reset_lock(i915);
set_bit(I915_RESET_HANDOFF, &i915->gpu_error.flags);
mutex_lock(&i915->drm.struct_mutex);
reset_count = i915_reset_count(&i915->gpu_error);
i915_reset(i915, ALL_ENGINES, NULL);
if (i915_reset_count(&i915->gpu_error) == reset_count) {
pr_err("No GPU reset recorded!\n");
err = -EINVAL;
}
mutex_unlock(&i915->drm.struct_mutex);
GEM_BUG_ON(test_bit(I915_RESET_HANDOFF, &i915->gpu_error.flags));
igt_global_reset_unlock(i915);
if (i915_terminally_wedged(&i915->gpu_error))
err = -EIO;
return err;
}
static int igt_wedged_reset(void *arg)
{
struct drm_i915_private *i915 = arg;
intel_wakeref_t wakeref;
/* Check that we can recover a wedged device with a GPU reset */
igt_global_reset_lock(i915);
wakeref = intel_runtime_pm_get(i915);
i915_gem_set_wedged(i915);
GEM_BUG_ON(!i915_reset_failed(i915));
i915_reset(i915, ALL_ENGINES, NULL);
intel_runtime_pm_put(i915, wakeref);
igt_global_reset_unlock(i915);
return i915_reset_failed(i915) ? -EIO : 0;
}
