drm/i915: Add a live seftest for GEM objects (12d30d87) · Commits · 戴 / test

drivers/gpu/drm/i915/selftests/i915_gem_object.c

+49 −0

Original line number	Diff line number	Diff line
		@@ -100,6 +100,46 @@ out:
		return err;
		}

		static int igt_gem_huge(void *arg)
		{
		const unsigned int nreal = 509; /* just to be awkward */
		struct drm_i915_private *i915 = arg;
		struct drm_i915_gem_object *obj;
		unsigned int n;
		int err;

		/* Basic sanitycheck of our huge fake object allocation */

		obj = huge_gem_object(i915,
		nreal * PAGE_SIZE,
		i915->ggtt.base.total + PAGE_SIZE);
		if (IS_ERR(obj))
		return PTR_ERR(obj);

		err = i915_gem_object_pin_pages(obj);
		if (err) {
		pr_err("Failed to allocate %u pages (%lu total), err=%d\n",
		nreal, obj->base.size / PAGE_SIZE, err);
		goto out;
		}

		for (n = 0; n < obj->base.size / PAGE_SIZE; n++) {
		if (i915_gem_object_get_page(obj, n) !=
		i915_gem_object_get_page(obj, n % nreal)) {
		pr_err("Page lookup mismatch at index %u [%u]\n",
		n, n % nreal);
		err = -EINVAL;
		goto out_unpin;
		}
		}

		out_unpin:
		i915_gem_object_unpin_pages(obj);
		out:
		i915_gem_object_put(obj);
		return err;
		}

		int i915_gem_object_mock_selftests(void)
		{
		static const struct i915_subtest tests[] = {
		@@ -118,3 +158,12 @@ int i915_gem_object_mock_selftests(void)
		drm_dev_unref(&i915->drm);
		return err;
		}

		int i915_gem_object_live_selftests(struct drm_i915_private *i915)
		{
		static const struct i915_subtest tests[] = {
		SUBTEST(igt_gem_huge),
		};

		return i915_subtests(tests, i915);
		}

+1 −0

Original line number	Diff line number	Diff line
		@@ -10,3 +10,4 @@
		*/
		selftest(sanitycheck, i915_live_sanitycheck) /* keep first (igt selfcheck) */
		selftest(requests, i915_gem_request_live_selftests)
		selftest(objects, i915_gem_object_live_selftests)