gpu: nvgpu: unit: add nvgpu_gk20a test

Add test for common.nvgpu.gk20a unit.

JIRA NVGPU-4818

Change-Id: Iae23d39675789fad141411162774c05f976c9831
Signed-off-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2279562
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

userspace/units/interface/nvgpu_gk20a/nvgpu_gk20a.c

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2020, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * 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 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 <unit/unit.h>
+#include <unit/io.h>
+#include <nvgpu/posix/io.h>
+
+#include <nvgpu/gk20a.h>
+
+#include "nvgpu_gk20a.h"
+
+int test_get_poll_timeout(struct unit_module *m, struct gk20a *g, void *args)
+{
+	const u32 default_timeout = 123456;
+
+	g->poll_timeout_default = default_timeout;
+	unit_assert(nvgpu_get_poll_timeout(g) == default_timeout,
+							return UNIT_FAIL);
+
+	return  UNIT_SUCCESS;
+}
+
+struct unit_module_test nvgpu_gk20a_tests[] = {
+	UNIT_TEST(get_poll_timeout,	test_get_poll_timeout,	NULL, 0),
+};
+
+UNIT_MODULE(nvgpu_gk20a, nvgpu_gk20a_tests, UNIT_PRIO_NVGPU_TEST);