Open source GPL/LGPL release

userspace/units/interface/string/nvgpu-string.c

@@ -0,0 +1,111 @@
+/*
+ * 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/string.h>
+
+#include "nvgpu-string.h"
+
+#include <string.h>
+
+int test_memcpy_memcmp(struct unit_module *m, struct gk20a *g, void *args)
+{
+	const size_t len = 10;
+	u8 dest[len];
+	u8 src[len];
+	u8 i;
+
+	for (i = 0; i < len; i++) {
+		dest[i] = 0;
+		src[i] = i;
+	}
+	nvgpu_memcpy(dest, src, len);
+	unit_assert(nvgpu_memcmp(dest, src, len) == 0, return UNIT_FAIL);
+
+	for (i = 0; i < len; i++) {
+		dest[i] = 0;
+	}
+	nvgpu_memcpy(dest, src, len - 1U);
+	unit_assert(nvgpu_memcmp(dest, src, len - 1U) == 0, return UNIT_FAIL);
+	unit_assert(dest[len - 1] == 0, return UNIT_FAIL);
+	unit_assert(nvgpu_memcmp(dest, src, len) != 0, return UNIT_FAIL);
+
+	/* test size==0 */
+	unit_assert(nvgpu_memcmp(dest, src, 0) == 0, return UNIT_FAIL);
+
+	return UNIT_SUCCESS;
+}
+
+int test_strnadd_u32(struct unit_module *m, struct gk20a *g, void *args)
+{
+	const size_t len = 10;
+	char dest[len];
+
+	/* test invalid radices */
+	unit_assert(nvgpu_strnadd_u32(dest, 10U, len, 1U) == 0,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_strnadd_u32(dest, 10U, len, 17U) == 0,
+							return UNIT_FAIL);
+	/* test insufficient space */
+	unit_assert(nvgpu_strnadd_u32(dest, 1000U, 2, 10U) == 0,
+							return UNIT_FAIL);
+	unit_assert(nvgpu_strnadd_u32(dest, 1000U, 4, 10U) == 0,
+							return UNIT_FAIL);
+
+	unit_assert(nvgpu_strnadd_u32(dest, 1000U, len, 10U) == 4,
+							return UNIT_FAIL);
+	unit_assert(strncmp(dest, "1000", 4) == 0, return UNIT_FAIL);
+
+	unit_assert(nvgpu_strnadd_u32(dest, 0xdeadbeef, len, 16U) == 8,
+							return UNIT_FAIL);
+
+	unit_assert(strncmp(dest, "deadbeef", 8) == 0, return UNIT_FAIL);
+
+	return UNIT_SUCCESS;
+}
+
+int test_mem_is_word_aligned(struct unit_module *m, struct gk20a *g, void *args)
+{
+	unit_assert(nvgpu_mem_is_word_aligned(g, (u8 *)0x1000),
+							return UNIT_FAIL);
+	unit_assert(!nvgpu_mem_is_word_aligned(g, (u8 *)0x1001),
+							return UNIT_FAIL);
+	unit_assert(!nvgpu_mem_is_word_aligned(g, (u8 *)0x1002),
+							return UNIT_FAIL);
+	unit_assert(!nvgpu_mem_is_word_aligned(g, (u8 *)0x1003),
+							return UNIT_FAIL);
+	unit_assert(nvgpu_mem_is_word_aligned(g, (u8 *)0x1004),
+							return UNIT_FAIL);
+
+	return UNIT_SUCCESS;
+}
+
+struct unit_module_test string_tests[] = {
+	UNIT_TEST(memcpy_memcmp,	test_memcpy_memcmp,		NULL, 0),
+	UNIT_TEST(strnadd_u32,		test_strnadd_u32,		NULL, 0),
+	UNIT_TEST(mem_is_word_aligned,	test_mem_is_word_aligned,	NULL, 0),
+};
+
+UNIT_MODULE(string, string_tests, UNIT_PRIO_NVGPU_TEST);