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>

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 */