gpu: nvgpu: unit: Add unit testing FW

Full documentation for this is in the unit testing
confluence page.

JIRA NVGPU-525
Bug 2261555

Change-Id: I463e6267eb0eb12b7313f8b275266e8faabe5ccf
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1683915
GVS: Gerrit_Virtual_Submit
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

userspace/src/unit_main.c

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2018, 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.
+ */
+
+/**
+ * NvGpu unit testing framework!
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <unit/io.h>
+#include <unit/core.h>
+#include <unit/args.h>
+#include <unit/module.h>
+#include <unit/results.h>
+
+int main(int argc, char **argv)
+{
+	struct unit_fw *fw;
+	int ret;
+
+	fw = malloc(sizeof(*fw));
+	if (!fw)
+		return 1;
+
+	memset(fw, 0, sizeof(*fw));
+
+	ret = core_parse_args(fw, argc, argv);
+	if (ret) {
+		core_err(fw, "Enable to parse args.\n");
+		core_err(fw, "Exiting!\n");
+		return 1;
+	}
+
+	core_vbs(fw, 1, "Welcome to the nvgpu unit testing framework!\n");
+
+	if (args(fw)->help) {
+		core_print_help(fw);
+		return 1;
+	}
+
+	ret = core_load_nvgpu(fw);
+	if (ret != 0)
+		return ret;
+
+	fw->modules = core_load_modules(fw);
+	if (fw->modules == NULL)
+		return -1;
+
+	ret = core_exec(fw);
+	if (ret != 0)
+		return ret;
+
+	core_print_test_status(fw);
+
+	return 0;
+}