1 // SPDX-License-Identifier: GPL-2.0-or-later
10 #include <linux/init.h>
72 #define TEST_ARGS(bit, op, init, ret, expect, args...)		\  argument
74 	atomic##bit##_set(&v, init);				\
79 #define XCHG_FAMILY_TEST(bit, init, new)				\  argument
81 	FAMILY_TEST(TEST_ARGS, bit, xchg, init, init, new, new);	\
84 #define CMPXCHG_FAMILY_TEST(bit, init, new, wrong)			\  argument
87 			init, init, new, init, new);			\
89 			init, init, init, wrong, new);			\
101 			i, (i) - one, (i) - one);	\
115 	TEST(, add, +=, -one);  in test_atomic()
116 	TEST(, sub, -=, onestwos);  in test_atomic()
117 	TEST(, sub, -=, -one);  in test_atomic()
124 	RETURN_FAMILY_TEST(, add_return, +=, -one);  in test_atomic()
125 	RETURN_FAMILY_TEST(, sub_return, -=, onestwos);  in test_atomic()
126 	RETURN_FAMILY_TEST(, sub_return, -=, -one);  in test_atomic()
129 	FETCH_FAMILY_TEST(, fetch_add, +=, -one);  in test_atomic()
130 	FETCH_FAMILY_TEST(, fetch_sub, -=, onestwos);  in test_atomic()
131 	FETCH_FAMILY_TEST(, fetch_sub, -=, -one);  in test_atomic()
146 #define INIT(c) do { atomic64_set(&v, c); r = c; } while (0)  macro
167 	TEST(64, add, +=, -one);  in test_atomic64()
168 	TEST(64, sub, -=, onestwos);  in test_atomic64()
169 	TEST(64, sub, -=, -one);  in test_atomic64()
176 	RETURN_FAMILY_TEST(64, add_return, +=, -one);  in test_atomic64()
177 	RETURN_FAMILY_TEST(64, sub_return, -=, onestwos);  in test_atomic64()
178 	RETURN_FAMILY_TEST(64, sub_return, -=, -one);  in test_atomic64()
181 	FETCH_FAMILY_TEST(64, fetch_add, +=, -one);  in test_atomic64()
182 	FETCH_FAMILY_TEST(64, fetch_sub, -=, onestwos);  in test_atomic64()
183 	FETCH_FAMILY_TEST(64, fetch_sub, -=, -one);  in test_atomic64()
190 	INIT(v0);  in test_atomic64()
195 	INIT(v0);  in test_atomic64()
197 	r -= one;  in test_atomic64()
206 	INIT(v0);  in test_atomic64()
210 	INIT(v0);  in test_atomic64()
215 	INIT(onestwos);  in test_atomic64()
216 	BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));  in test_atomic64()
217 	r -= one;  in test_atomic64()
220 	INIT(0);  in test_atomic64()
221 	BUG_ON(atomic64_dec_if_positive(&v) != -one);  in test_atomic64()
224 	INIT(-one);  in test_atomic64()
225 	BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));  in test_atomic64()
228 	INIT(onestwos);  in test_atomic64()
233 	INIT(0);  in test_atomic64()
237 	INIT(-one);  in test_atomic64()
243 	INIT(v3);  in test_atomic64()
256 		"x86-64",  in test_atomics_init()