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/include/unit/args.h

@@ -0,0 +1,58 @@
+/*
+ * 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.
+ */
+
+#ifndef __UNIT_ARGS_H__
+#define __UNIT_ARGS_H__
+
+#include <stdbool.h>
+
+/*
+ * Allow defaults to be changed at compile time.
+ */
+#define __stringify(x)			#x
+#define stringify(x)			__stringify(x)
+
+#ifndef __DEFAULT_ARG_UNIT_LOAD_PATH
+#define __DEFAULT_ARG_UNIT_LOAD_PATH	build/units
+#endif
+#define DEFAULT_ARG_UNIT_LOAD_PATH	stringify(__DEFAULT_ARG_UNIT_LOAD_PATH)
+
+struct unit_fw;
+
+struct unit_fw_args {
+	bool		 help;
+	int		 verbose_lvl;
+	bool		 no_color;
+
+	const char	*unit_name;
+	const char	*unit_load_path;
+};
+
+int core_parse_args(struct unit_fw *fw, int argc, char **argv);
+void core_print_help(struct unit_fw *fw);
+
+/*
+ * Convenience for getting the args struct pointer.
+ */
+#define args(fw)		((fw)->args)
+
+#endif