Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Test cases for functions and macros in bits.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <kunit/test.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/bits.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) static void genmask_test(struct kunit *test)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	KUNIT_EXPECT_EQ(test, 1ul, GENMASK(0, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	KUNIT_EXPECT_EQ(test, 3ul, GENMASK(1, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	KUNIT_EXPECT_EQ(test, 6ul, GENMASK(2, 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	KUNIT_EXPECT_EQ(test, 0xFFFFFFFFul, GENMASK(31, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #ifdef TEST_GENMASK_FAILURES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	/* these should fail compilation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	GENMASK(0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	GENMASK(0, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	GENMASK(9, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static void genmask_ull_test(struct kunit *test)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	KUNIT_EXPECT_EQ(test, 1ull, GENMASK_ULL(0, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	KUNIT_EXPECT_EQ(test, 3ull, GENMASK_ULL(1, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	KUNIT_EXPECT_EQ(test, 0x000000ffffe00000ull, GENMASK_ULL(39, 21));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_ULL(63, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #ifdef TEST_GENMASK_FAILURES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	/* these should fail compilation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	GENMASK_ULL(0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	GENMASK_ULL(0, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	GENMASK_ULL(9, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static void genmask_input_check_test(struct kunit *test)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	unsigned int x, y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	int z, w;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	/* Unknown input */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(x, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(0, x));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(x, y));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(z, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(0, z));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(z, w));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	/* Valid input */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(1, 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(39, 21));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static struct kunit_case bits_test_cases[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	KUNIT_CASE(genmask_test),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	KUNIT_CASE(genmask_ull_test),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	KUNIT_CASE(genmask_input_check_test),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	{}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static struct kunit_suite bits_test_suite = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	.name = "bits-test",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 	.test_cases = bits_test_cases,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) kunit_test_suite(bits_test_suite);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) MODULE_LICENSE("GPL");