[Intel-xe] [PATCH 4/5] drm/xe: Initial selftests for xe_guc

[Michal Wajdeczko]

Add few very basic mock and live selftests for the xe_guc.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
 .../xe/selftests/live/xe_guc_live_selftest.c  | 54 +++++++++++++++++++
 .../xe/selftests/mock/xe_guc_mock_selftest.c  | 30 +++++++++++
 drivers/gpu/drm/xe/xe_guc.c                   |  6 +++
 3 files changed, 90 insertions(+)
 create mode 100644 drivers/gpu/drm/xe/selftests/live/xe_guc_live_selftest.c
 create mode 100644 drivers/gpu/drm/xe/selftests/mock/xe_guc_mock_selftest.c

diff --git a/drivers/gpu/drm/xe/selftests/live/xe_guc_live_selftest.c b/drivers/gpu/drm/xe/selftests/live/xe_guc_live_selftest.c
new file mode 100644
index 000000000000..eefda6af1cce
--- /dev/null
+++ b/drivers/gpu/drm/xe/selftests/live/xe_guc_live_selftest.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0 AND MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include <kunit/test.h>
+
+#include "selftests/xe_selftests.h"
+
+static void test_guc_fw(struct kunit *test)
+{
+	struct xe_guc *guc = test->priv;
+
+	KUNIT_EXPECT_TRUE(test, xe_uc_fw_is_supported(&guc->fw));
+	KUNIT_EXPECT_TRUE(test, xe_uc_fw_is_enabled(&guc->fw));
+	KUNIT_EXPECT_TRUE(test, xe_uc_fw_is_available(&guc->fw));
+	KUNIT_EXPECT_TRUE(test, xe_uc_fw_is_running(&guc->fw));
+}
+
+static int guc_send_unknown_action(struct xe_guc *guc)
+{
+	u32 request[] = {
+		FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
+		FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
+		FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, 0xDEAD),
+	};
+
+	return xe_guc_mmio_send(guc, request, ARRAY_SIZE(request));
+}
+
+static void test_guc_rejects_unknown_action(struct kunit *test)
+{
+	struct xe_guc *guc = test->priv;
+
+	kunit_skip(test, "XE_BUG_ON(guc->ct.enabled)");
+	KUNIT_EXPECT_NE(test, 0, guc_send_unknown_action(guc));
+}
+
+static struct kunit_case guc_live_test_cases[] = {
+	KUNIT_CASE(test_guc_fw),
+	KUNIT_CASE(test_guc_rejects_unknown_action),
+	{}
+};
+
+static struct kunit_suite guc_live_suite = {
+	.name = "guc_live",
+	.test_cases = guc_live_test_cases,
+
+	.suite_init = init_xe_live_selftest_suite,
+	.init = init_xe_guc_selftest,
+	.exit = exit_xe_guc_selftest,
+};
+
+kunit_test_suite(guc_live_suite);
diff --git a/drivers/gpu/drm/xe/selftests/mock/xe_guc_mock_selftest.c b/drivers/gpu/drm/xe/selftests/mock/xe_guc_mock_selftest.c
new file mode 100644
index 000000000000..c10c91b5971f
--- /dev/null
+++ b/drivers/gpu/drm/xe/selftests/mock/xe_guc_mock_selftest.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0 AND MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include <kunit/test.h>
+
+#include "selftests/xe_selftests.h"
+
+static void test_basic(struct kunit *test)
+{
+	struct xe_guc *guc = test->priv;
+
+	KUNIT_ASSERT_NOT_NULL(test, guc);
+}
+
+static struct kunit_case guc_mock_test_cases[] = {
+	KUNIT_CASE(test_basic),
+	{}
+};
+
+static struct kunit_suite guc_mock_suite = {
+	.name = "guc_mock",
+	.test_cases = guc_mock_test_cases,
+
+	.init = init_xe_guc_selftest,
+	.exit = exit_xe_guc_selftest,
+};
+
+kunit_test_suite(guc_mock_suite);
diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c
index 58b9841616e4..86fbac466788 100644
--- a/drivers/gpu/drm/xe/xe_guc.c
+++ b/drivers/gpu/drm/xe/xe_guc.c
@@ -871,3 +871,9 @@ void xe_guc_print_info(struct xe_guc *guc, struct drm_printer *p)
 	xe_guc_ct_print(&guc->ct, p);
 	xe_guc_submit_print(guc, p);
 }
+
+#if IS_ENABLED(CONFIG_DRM_XE_SELFTESTS_MOCK)
+#include "selftests/mock/xe_guc_mock_selftest.c"
+#elif IS_ENABLED(CONFIG_DRM_XE_SELFTESTS_LIVE)
+#include "selftests/live/xe_guc_live_selftest.c"
+#endif
-- 
2.25.1