Commit c835c550 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Add selftests for i915_gem_request



Simple starting point for adding seltests for i915_gem_request, first
mock a device (with engines and contexts) that allows us to construct
and execute a request, along with waiting for the request to complete.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-10-chris@chris-wilson.co.uk
parent 44653988
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+5 −0
Original line number Diff line number Diff line
@@ -1198,3 +1198,8 @@ void i915_gem_retire_requests(struct drm_i915_private *dev_priv)
	for_each_engine(engine, dev_priv, id)
		engine_retire_requests(engine);
}

#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
#include "selftests/mock_request.c"
#include "selftests/i915_gem_request.c"
#endif
+68 −0
Original line number Diff line number Diff line
/*
 * Copyright © 2016 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 *
 */

#include "../i915_selftest.h"

#include "mock_gem_device.h"

static int igt_add_request(void *arg)
{
	struct drm_i915_private *i915 = arg;
	struct drm_i915_gem_request *request;
	int err = -ENOMEM;

	/* Basic preliminary test to create a request and let it loose! */

	mutex_lock(&i915->drm.struct_mutex);
	request = mock_request(i915->engine[RCS],
			       i915->kernel_context,
			       HZ / 10);
	if (!request)
		goto out_unlock;

	i915_add_request(request);

	err = 0;
out_unlock:
	mutex_unlock(&i915->drm.struct_mutex);
	return err;
}

int i915_gem_request_mock_selftests(void)
{
	static const struct i915_subtest tests[] = {
		SUBTEST(igt_add_request),
	};
	struct drm_i915_private *i915;
	int err;

	i915 = mock_gem_device();
	if (!i915)
		return -ENOMEM;

	err = i915_subtests(tests, i915);
	drm_dev_unref(&i915->drm);

	return err;
}
+1 −0
Original line number Diff line number Diff line
@@ -11,3 +11,4 @@
selftest(sanitycheck, i915_mock_sanitycheck) /* keep first (igt selfcheck) */
selftest(scatterlist, scatterlist_mock_selftests)
selftest(breadcrumbs, intel_breadcrumbs_mock_selftests)
selftest(requests, i915_gem_request_mock_selftests)