gpu: nvgpu: unit: add static_analysis unit test

Add unit test for common.utils static_analysis unit.

JIRA NVGPU-4825

Change-Id: Id103ab101bbca8424dd7f0d136f1101ddf4bc2b5
Signed-off-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2276814
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

Makefile.umbrella.tmk

@@ -51,6 +51,7 @@ NV_REPOSITORY_COMPONENTS += userspace/units/interface/bsearch
 NV_REPOSITORY_COMPONENTS += userspace/units/interface/lock
 NV_REPOSITORY_COMPONENTS += userspace/units/interface/atomic
 NV_REPOSITORY_COMPONENTS += userspace/units/interface/rbtree
+NV_REPOSITORY_COMPONENTS += userspace/units/interface/static_analysis
 NV_REPOSITORY_COMPONENTS += userspace/units/interface/worker
 NV_REPOSITORY_COMPONENTS += userspace/units/bus
 NV_REPOSITORY_COMPONENTS += userspace/units/pramin

userspace/Makefile.sources

@@ -64,6 +64,7 @@ UNITS :=				\
 	$(UNIT_SRC)/interface/lock	\
 	$(UNIT_SRC)/interface/atomic	\
 	$(UNIT_SRC)/interface/rbtree	\
+	$(UNIT_SRC)/interface/static_analysis	\
 	$(UNIT_SRC)/interface/worker	\
 	$(UNIT_SRC)/mc			\
 	$(UNIT_SRC)/mm/nvgpu_sgt	\

userspace/required_tests.json

@@ -4549,5 +4549,17 @@
         "case": "init",
         "unit": "worker",
         "test_level": 0
+    },
+    {
+        "test": "test_arithmetic",
+        "case": "arithmetic",
+        "unit": "static_analysis",
+        "test_level": 0
+    },
+    {
+        "test": "test_cast",
+        "case": "cast",
+        "unit": "static_analysis",
+        "test_level": 0
     }
 ]

userspace/units/interface/static_analysis/Makefile

@@ -0,0 +1,26 @@
+# 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.
+
+.SUFFIXES:
+
+OBJS   = static_analysis.o
+MODULE = static_analysis
+
+include ../../Makefile.units

userspace/units/interface/static_analysis/Makefile.interface.tmk

@@ -0,0 +1,23 @@
+################################### tell Emacs this is a -*- makefile-gmake -*-
+#
+# Copyright (c) 2020, NVIDIA CORPORATION.  All Rights Reserved.
+#
+# NVIDIA CORPORATION and its licensors retain all intellectual property
+# and proprietary rights in and to this software, related documentation
+# and any modifications thereto.  Any use, reproduction, disclosure or
+# distribution of this software and related documentation without an express
+# license agreement from NVIDIA CORPORATION is strictly prohibited.
+#
+# tmake for SW Mobile component makefile
+#
+###############################################################################
+
+NVGPU_UNIT_NAME=static_analysis
+
+include $(NV_COMPONENT_DIR)/../../Makefile.units.common.interface.tmk
+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 8
+# End:
+# vi: set tabstop=8 noexpandtab:

userspace/units/interface/static_analysis/Makefile.tmk

@@ -0,0 +1,24 @@
+################################### tell Emacs this is a -*- makefile-gmake -*-
+#
+# Copyright (c) 2020, NVIDIA CORPORATION.  All Rights Reserved.
+#
+# NVIDIA CORPORATION and its licensors retain all intellectual property
+# and proprietary rights in and to this software, related documentation
+# and any modifications thereto.  Any use, reproduction, disclosure or
+# distribution of this software and related documentation without an express
+# license agreement from NVIDIA CORPORATION is strictly prohibited.
+#
+# tmake for SW Mobile component makefile
+#
+###############################################################################
+
+NVGPU_UNIT_NAME=static_analysis
+NVGPU_UNIT_SRCS=static_analysis.c
+
+include $(NV_COMPONENT_DIR)/../../Makefile.units.common.tmk
+
+# Local Variables:
+# indent-tabs-mode: t
+# tab-width: 8
+# End:
+# vi: set tabstop=8 noexpandtab:

userspace/units/interface/static_analysis/static_analysis.c

@@ -0,0 +1,274 @@
+/*
+ * 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/static_analysis.h>
+
+#include "static_analysis.h"
+
+int test_arithmetic(struct unit_module *m, struct gk20a *g, void *args)
+{
+	int err;
+
+	/* U8 sub */
+	unit_assert(nvgpu_safe_sub_u8(1, 1) == 0, return UNIT_FAIL);
+	unit_assert(nvgpu_safe_sub_u8(U8_MAX, U8_MAX) == 0,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_sub_u8(0, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U32 add */
+	unit_assert(nvgpu_safe_add_u32(U32_MAX-1, 1) == U32_MAX,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_add_u32(U32_MAX, 0) == U32_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_add_u32(U32_MAX, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S32 add */
+	unit_assert(nvgpu_safe_add_s32(INT_MAX-1, 1) == INT_MAX,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_add_s32(INT_MAX, 0) == INT_MAX,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_add_s32(INT_MIN+1, -1) == INT_MIN,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_add_s32(INT_MAX, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_add_s32(INT_MIN, -1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U32 sub */
+	unit_assert(nvgpu_safe_sub_u32(1, 1) == 0, return UNIT_FAIL);
+	unit_assert(nvgpu_safe_sub_u32(U32_MAX, U32_MAX) == 0,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_sub_u32(0, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S32 sub */
+	unit_assert(nvgpu_safe_sub_s32(INT_MIN+1, 1) == INT_MIN,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_sub_s32(INT_MAX-1, -1) == INT_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_sub_s32(INT_MIN, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_sub_s32(INT_MAX, -1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U32 Mult */
+	unit_assert(nvgpu_safe_mult_u32(0, 0) == 0,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_u32(U32_MAX, 0) == 0,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_u32(U32_MAX, 1) == U32_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_mult_u32(U32_MAX, 2));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U64 add */
+	unit_assert(nvgpu_safe_add_u64(U64_MAX-1, 1) == U64_MAX,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_add_u64(U64_MAX, 0) == U64_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_add_u64(U64_MAX, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S64 add */
+	unit_assert(nvgpu_safe_add_s64(LONG_MAX-1, 1) == LONG_MAX,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_add_s64(LONG_MAX, 0) == LONG_MAX,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_add_s64(LONG_MIN+1, -1) == LONG_MIN,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_add_s64(LONG_MAX, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_add_s64(LONG_MIN, -1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U64 sub */
+	unit_assert(nvgpu_safe_sub_u64(1, 1) == 0, return UNIT_FAIL);
+	unit_assert(nvgpu_safe_sub_u64(U64_MAX, U64_MAX) == 0,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_sub_u64(0, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S64 sub */
+	unit_assert(nvgpu_safe_sub_s64(LONG_MIN+1, 1) == LONG_MIN,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_sub_s64(LONG_MAX-1, -1) == LONG_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_sub_s64(LONG_MIN, 1));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_sub_s64(LONG_MAX, -1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U64 Mult */
+	unit_assert(nvgpu_safe_mult_u64(0, 0) == 0,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_u64(U64_MAX, 0) == 0,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_u64(U64_MAX, 1) == U64_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_mult_u64(U64_MAX, 2));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S64 Mult */
+	unit_assert(nvgpu_safe_mult_s64(LONG_MAX, 1) == LONG_MAX,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_s64(LONG_MAX, -1) == (-1 * LONG_MAX),
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_s64(-1, LONG_MAX) == (-1 * LONG_MAX),
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_s64(0, LONG_MAX) == 0,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_s64(-1, -1) == 1,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_mult_s64(0, -1) == 0,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_mult_s64(LONG_MAX, 2));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_mult_s64(LONG_MAX, -2));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_mult_s64(-1*LONG_MAX, 2));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_mult_s64(-1*LONG_MAX, -2));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	return UNIT_SUCCESS;
+}
+
+int test_cast(struct unit_module *m, struct gk20a *g, void *args)
+{
+	int err;
+
+	/* U64 to U32 */
+	unit_assert(nvgpu_safe_cast_u64_to_u32(U32_MAX) == U32_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u64_to_u32(U64(U32_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U64 to U16 */
+	unit_assert(nvgpu_safe_cast_u64_to_u16(U16_MAX) == U16_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u64_to_u16(U64(U16_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U64 to U8 */
+	unit_assert(nvgpu_safe_cast_u64_to_u8(U8_MAX) == U8_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u64_to_u8(U64(U8_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U64 to S64 */
+	unit_assert(nvgpu_safe_cast_u64_to_s64(LONG_MAX) == LONG_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u64_to_s64(U64(LONG_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U64 to S32 */
+	unit_assert(nvgpu_safe_cast_u64_to_s32(INT_MAX) == INT_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u64_to_s32(U64(INT_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S64 to U64 */
+	unit_assert(nvgpu_safe_cast_s64_to_u64(LONG_MAX) == LONG_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_s64_to_u64(-1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S64 to U32 */
+	unit_assert(nvgpu_safe_cast_s64_to_u32(U32_MAX) == U32_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_s64_to_u32(-1));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_s64_to_u32(U64(U32_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S64 to S32 */
+	unit_assert(nvgpu_safe_cast_s64_to_s32(INT_MAX) == INT_MAX,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_safe_cast_s64_to_s32(INT_MIN) == INT_MIN,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_s64_to_s32(S64(INT_MIN)-1));
+	unit_assert(err != 0, return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_s64_to_s32(S64(INT_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U32 to U16 */
+	unit_assert(nvgpu_safe_cast_u32_to_u16(U16_MAX) == U16_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u32_to_u16(U64(U16_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U32 to U8 */
+	unit_assert(nvgpu_safe_cast_u32_to_u8(U8_MAX) == U8_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u32_to_u8(U64(U8_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U32 to S32 */
+	unit_assert(nvgpu_safe_cast_u32_to_s32(INT_MAX) == INT_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u32_to_s32(U32(INT_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* U32 to S8 */
+	unit_assert(nvgpu_safe_cast_u32_to_s8(SCHAR_MAX) == SCHAR_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_u32_to_s8(U32(SCHAR_MAX)+1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S32 to U64 */
+	unit_assert(nvgpu_safe_cast_s32_to_u64(INT_MAX) == INT_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_s32_to_u64(-1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S32 to U32 */
+	unit_assert(nvgpu_safe_cast_s32_to_u32(INT_MAX) == INT_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_s32_to_u32(-1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* S8 to U8 */
+	unit_assert(nvgpu_safe_cast_s8_to_u8(SCHAR_MAX) == SCHAR_MAX,
+							return UNIT_FAIL);
+	err = EXPECT_BUG((void)nvgpu_safe_cast_s8_to_u8(-1));
+	unit_assert(err != 0, return UNIT_FAIL);
+
+	/* bool to U32 */
+	unit_assert(nvgpu_safe_cast_bool_to_u32(false) == 0, return UNIT_FAIL);
+	unit_assert(nvgpu_safe_cast_bool_to_u32(true) == 1, return UNIT_FAIL);
+
+	return  UNIT_SUCCESS;
+}
+
+struct unit_module_test static_analysis_tests[] = {
+	UNIT_TEST(arithmetic,		test_arithmetic,	NULL, 0),
+	UNIT_TEST(cast,			test_cast,		NULL, 0),
+};
+
+UNIT_MODULE(static_analysis, static_analysis_tests, UNIT_PRIO_NVGPU_TEST);

userspace/units/interface/static_analysis/static_analysis.h

@@ -0,0 +1,91 @@
+/*
+ * 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.
+ */
+
+#ifndef UNIT_STATIC_ANALYSIS_H
+#define UNIT_STATIC_ANALYSIS_H
+
+struct gk20a;
+struct unit_module;
+
+/** @addtogroup SWUTS-interface-static-analysis
+ *  @{
+ *
+ * Software Unit Test Specification for static analysis unit
+ */
+
+/**
+ * Test specification for: test_arithmetic
+ *
+ * Description: Verify functionality of static analysis safe arithmetic APIs.
+ *
+ * Test Type: Feature, Error guessing
+ *
+ * Targets: nvgpu_safe_sub_u8, nvgpu_safe_add_u32, nvgpu_safe_add_s32,
+ *          nvgpu_safe_sub_u32, nvgpu_safe_sub_s32, nvgpu_safe_mult_u32,
+ *          nvgpu_safe_add_u64, nvgpu_safe_add_s64, nvgpu_safe_sub_u64,
+ *          nvgpu_safe_sub_s64, nvgpu_safe_mult_u64, nvgpu_safe_mult_s64
+ *
+ * Input: None
+ *
+ * Steps:
+ * - Call the static analysis arithmetic APIs. Pass in valid values and verify
+ *   correct return.
+ * - Call the static analysis arithmetic APIs. Pass in values beyond type range
+ *   and use EXPECT_BUG() to verify BUG() is called.
+ *
+ * Output: Returns PASS if expected result is met, FAIL otherwise.
+ */
+int test_arithmetic(struct unit_module *m, struct gk20a *g, void *args);
+
+/**
+ * Test specification for: test_cast
+ *
+ * Description: Verify functionality of static analysis safe cast APIs.
+ *
+ * Test Type: Feature, Error guessing
+ *
+ * Targets: nvgpu_safe_cast_u64_to_u32, nvgpu_safe_cast_u64_to_u16,
+ *          nvgpu_safe_cast_u64_to_u8, nvgpu_safe_cast_u64_to_s64,
+ *          nvgpu_safe_cast_u64_to_s32, nvgpu_safe_cast_s64_to_u64,
+ *          nvgpu_safe_cast_s64_to_u32, nvgpu_safe_cast_s64_to_s32,
+ *          nvgpu_safe_cast_u32_to_u16, nvgpu_safe_cast_u32_to_u8,
+ *          nvgpu_safe_cast_u32_to_s32, nvgpu_safe_cast_u32_to_s8,
+ *          nvgpu_safe_cast_s32_to_u64, nvgpu_safe_cast_s32_to_u32,
+ *          nvgpu_safe_cast_s8_to_u8, nvgpu_safe_cast_bool_to_u32
+ *
+ * Input: None
+ *
+ * Steps:
+ * - Call the static analysis arithmetic APIs. Pass in valid values and verify
+ *   correct return.
+ * - Call the static analysis arithmetic APIs. Pass in values beyond type range
+ *   and use EXPECT_BUG() to verify BUG() is called.
+ *
+ * Output: Returns PASS if expected result is met, FAIL otherwise.
+ */
+int test_cast(struct unit_module *m, struct gk20a *g, void *args);
+
+/**
+ * @}
+ */
+
+#endif /* UNIT_WORKER_H */