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drm/xe/tests: Add helpers for use in live tests

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Instead of iterating over available Xe devices within a testcase,
without being able to distinguish potential failures from different
devices on system with many Xe devices, introduce helpers that will
allow to treat each Xe device as a parameter for the testcase like:

static void bar(struct kunit *test)
{
	struct xe_device *xe = test->priv;
	...
}

struct kunit_case foo_live_tests[] = {
	KUNIT_CASE_PARAM(bar, xe_pci_live_device_gen_param),
	{}
};

struct kunit_suite foo_suite = {
	.name = "foo_live",
	.test_cases = foo_live_tests,
	.init = xe_kunit_helper_xe_device_live_test_init,
};

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240720142528.530-3-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko
2024-07-20 16:25:23 +02:00
parent bd40536ae3
commit 8bfab7cd83
4 changed files with 73 additions and 0 deletions
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39
drivers/gpu/drm/xe/tests/xe_kunit_helpers.c
View File

@@ -12,7 +12,9 @@
#include "tests/xe_kunit_helpers.h"
#include "tests/xe_pci_test.h"
#include "xe_device.h"
#include "xe_device_types.h"
#include "xe_pm.h"
/**
* xe_kunit_helper_alloc_xe_device - Allocate a &xe_device for a KUnit test.
@@ -88,3 +90,40 @@ int xe_kunit_helper_xe_device_test_init(struct kunit *test)
return 0;
}
EXPORT_SYMBOL_IF_KUNIT(xe_kunit_helper_xe_device_test_init);
KUNIT_DEFINE_ACTION_WRAPPER(put_xe_pm_runtime, xe_pm_runtime_put, struct xe_device *);
/**
* xe_kunit_helper_xe_device_live_test_init - Prepare a &xe_device for
* use in a live KUnit test.
* @test: the &kunit where live &xe_device will be used
*
* This function expects pointer to the &xe_device in the &test.param_value,
* like it is prepared by the &xe_pci_live_device_gen_param and stores that
* pointer as &kunit.priv to allow the test code to access it.
*
* This function makes sure that device is not wedged and then resumes it
* to avoid waking up the device inside the test. It uses deferred cleanup
* action to release a runtime_pm reference.
*
* This function can be used as custom implementation of &kunit_suite.init.
*
* This function uses KUNIT_ASSERT to detect any failures.
*
* Return: Always 0.
*/
int xe_kunit_helper_xe_device_live_test_init(struct kunit *test)
{
struct xe_device *xe = xe_device_const_cast(test->param_value);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xe);
kunit_info(test, "running on %s device\n", xe->info.platform_name);
KUNIT_ASSERT_FALSE(test, xe_device_wedged(xe));
xe_pm_runtime_get(xe);
KUNIT_ASSERT_EQ(test, 0, kunit_add_action_or_reset(test, put_xe_pm_runtime, xe));
test->priv = xe;
return 0;
}
EXPORT_SYMBOL_IF_KUNIT(xe_kunit_helper_xe_device_live_test_init);