// SPDX-License-Identifier: GPL-2.0-only /* * Test cases for bitmap API. */ #define pr_fmt(fmt) … #include <linux/bitmap.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/printk.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/uaccess.h> #include "../tools/testing/selftests/kselftest_module.h" #define EXP1_IN_BITS … KSTM_MODULE_GLOBALS(…); static char pbl_buffer[PAGE_SIZE] __initdata; static char print_buf[PAGE_SIZE * 2] __initdata; static const unsigned long exp1[] __initconst = …; static const unsigned long exp2[] __initconst = …; /* Fibonacci sequence */ static const unsigned long exp2_to_exp3_mask[] __initconst = …; /* exp3_0_1 = (exp2[0] & ~exp2_to_exp3_mask) | (exp2[1] & exp2_to_exp3_mask) */ static const unsigned long exp3_0_1[] __initconst = …; /* exp3_1_0 = (exp2[1] & ~exp2_to_exp3_mask) | (exp2[0] & exp2_to_exp3_mask) */ static const unsigned long exp3_1_0[] __initconst = …; static bool __init __check_eq_ulong(const char *srcfile, unsigned int line, const unsigned long exp_ulong, unsigned long x) { … } static bool __init __check_eq_bitmap(const char *srcfile, unsigned int line, const unsigned long *exp_bmap, const unsigned long *bmap, unsigned int nbits) { … } static bool __init __check_eq_pbl(const char *srcfile, unsigned int line, const char *expected_pbl, const unsigned long *bitmap, unsigned int nbits) { … } static bool __init __check_eq_u32_array(const char *srcfile, unsigned int line, const u32 *exp_arr, unsigned int exp_len, const u32 *arr, unsigned int len) __used; static bool __init __check_eq_u32_array(const char *srcfile, unsigned int line, const u32 *exp_arr, unsigned int exp_len, const u32 *arr, unsigned int len) { … } static bool __init __check_eq_clump8(const char *srcfile, unsigned int line, const unsigned int offset, const unsigned int size, const unsigned char *const clump_exp, const unsigned long *const clump) { … } static bool __init __check_eq_str(const char *srcfile, unsigned int line, const char *exp_str, const char *str, unsigned int len) { … } #define __expect_eq(suffix, ...) … #define expect_eq_ulong(...) … #define expect_eq_uint(x, y) … #define expect_eq_bitmap(...) … #define expect_eq_pbl(...) … #define expect_eq_u32_array(...) … #define expect_eq_clump8(...) … #define expect_eq_str(...) … static void __init test_zero_clear(void) { … } static void __init test_find_nth_bit(void) { … } static void __init test_fill_set(void) { … } static void __init test_copy(void) { … } static void __init test_bitmap_region(void) { … } #define EXP2_IN_BITS … static void __init test_replace(void) { … } static const unsigned long sg_mask[] __initconst = …; static const unsigned long sg_src[] __initconst = …; static const unsigned long sg_gather_exp[] __initconst = …; static const unsigned long sg_scatter_exp[] __initconst = …; static void __init test_bitmap_sg(void) { … } #define PARSE_TIME … #define NO_LEN … struct test_bitmap_parselist{ … }; static const struct test_bitmap_parselist parselist_tests[] __initconst = …; static void __init test_bitmap_parselist(void) { … } static void __init test_bitmap_printlist(void) { … } static const unsigned long parse_test[] __initconst = …; static const unsigned long parse_test2[] __initconst = …; static const struct test_bitmap_parselist parse_tests[] __initconst = …; static void __init test_bitmap_parse(void) { … } static void __init test_bitmap_arr32(void) { … } static void __init test_bitmap_arr64(void) { … } static void noinline __init test_mem_optimisations(void) { … } static const unsigned char clump_exp[] __initconst = …; static void __init test_for_each_set_clump8(void) { … } static void __init test_for_each_set_bit_wrap(void) { … } static void __init test_for_each_set_bit(void) { … } static void __init test_for_each_set_bit_from(void) { … } static void __init test_for_each_clear_bit(void) { … } static void __init test_for_each_clear_bit_from(void) { … } static void __init test_for_each_set_bitrange(void) { … } static void __init test_for_each_clear_bitrange(void) { … } static void __init test_for_each_set_bitrange_from(void) { … } static void __init test_for_each_clear_bitrange_from(void) { … } struct test_bitmap_cut { … }; static struct test_bitmap_cut test_cut[] = …; static void __init test_bitmap_cut(void) { … } struct test_bitmap_print { … }; static const unsigned long small_bitmap[] __initconst = …; static const char small_mask[] __initconst = …; static const char small_list[] __initconst = …; static const unsigned long large_bitmap[] __initconst = …; static const char large_mask[] __initconst = …; static const char large_list[] __initconst = …/* more than 4KB */ "0,4,8,12,16,20,24,28,32-33,36-37,40-41,44-45,48-49,52-53,56-57,60-61,64,68,72,76,80,84,88,92,96-97,100-101,104-1" "05,108-109,112-113,116-117,120-121,124-125,128,132,136,140,144,148,152,156,160-161,164-165,168-169,172-173,176-1" "77,180-181,184-185,188-189,192,196,200,204,208,212,216,220,224-225,228-229,232-233,236-237,240-241,244-245,248-2" "49,252-253,256,260,264,268,272,276,280,284,288-289,292-293,296-297,300-301,304-305,308-309,312-313,316-317,320,3" "24,328,332,336,340,344,348,352-353,356-357,360-361,364-365,368-369,372-373,376-377,380-381,384,388,392,396,400,4" "04,408,412,416-417,420-421,424-425,428-429,432-433,436-437,440-441,444-445,448,452,456,460,464,468,472,476,480-4" "81,484-485,488-489,492-493,496-497,500-501,504-505,508-509,512,516,520,524,528,532,536,540,544-545,548-549,552-5" "53,556-557,560-561,564-565,568-569,572-573,576,580,584,588,592,596,600,604,608-609,612-613,616-617,620-621,624-6" "25,628-629,632-633,636-637,640,644,648,652,656,660,664,668,672-673,676-677,680-681,684-685,688-689,692-693,696-6" "97,700-701,704,708,712,716,720,724,728,732,736-737,740-741,744-745,748-749,752-753,756-757,760-761,764-765,768,7" "72,776,780,784,788,792,796,800-801,804-805,808-809,812-813,816-817,820-821,824-825,828-829,832,836,840,844,848,8" "52,856,860,864-865,868-869,872-873,876-877,880-881,884-885,888-889,892-893,896,900,904,908,912,916,920,924,928-9" "29,932-933,936-937,940-941,944-945,948-949,952-953,956-957,960,964,968,972,976,980,984,988,992-993,996-997,1000-" "1001,1004-1005,1008-1009,1012-1013,1016-1017,1020-1021,1024,1028,1032,1036,1040,1044,1048,1052,1056-1057,1060-10" "61,1064-1065,1068-1069,1072-1073,1076-1077,1080-1081,1084-1085,1088,1092,1096,1100,1104,1108,1112,1116,1120-1121" ",1124-1125,1128-1129,1132-1133,1136-1137,1140-1141,1144-1145,1148-1149,1152,1156,1160,1164,1168,1172,1176,1180,1" "184-1185,1188-1189,1192-1193,1196-1197,1200-1201,1204-1205,1208-1209,1212-1213,1216,1220,1224,1228,1232,1236,124" "0,1244,1248-1249,1252-1253,1256-1257,1260-1261,1264-1265,1268-1269,1272-1273,1276-1277,1280,1284,1288,1292,1296," "1300,1304,1308,1312-1313,1316-1317,1320-1321,1324-1325,1328-1329,1332-1333,1336-1337,1340-1341,1344,1348,1352,13" "56,1360,1364,1368,1372,1376-1377,1380-1381,1384-1385,1388-1389,1392-1393,1396-1397,1400-1401,1404-1405,1408,1412" ",1416,1420,1424,1428,1432,1436,1440-1441,1444-1445,1448-1449,1452-1453,1456-1457,1460-1461,1464-1465,1468-1469,1" "472,1476,1480,1484,1488,1492,1496,1500,1504-1505,1508-1509,1512-1513,1516-1517,1520-1521,1524-1525,1528-1529,153" "2-1533,1536,1540,1544,1548,1552,1556,1560,1564,1568-1569,1572-1573,1576-1577,1580-1581,1584-1585,1588-1589,1592-" "1593,1596-1597,1600,1604,1608,1612,1616,1620,1624,1628,1632-1633,1636-1637,1640-1641,1644-1645,1648-1649,1652-16" "53,1656-1657,1660-1661,1664,1668,1672,1676,1680,1684,1688,1692,1696-1697,1700-1701,1704-1705,1708-1709,1712-1713" ",1716-1717,1720-1721,1724-1725,1728,1732,1736,1740,1744,1748,1752,1756,1760-1761,1764-1765,1768-1769,1772-1773,1" "776-1777,1780-1781,1784-1785,1788-1789,1792,1796,1800,1804,1808,1812,1816,1820,1824-1825,1828-1829,1832-1833,183" "6-1837,1840-1841,1844-1845,1848-1849,1852-1853,1856,1860,1864,1868,1872,1876,1880,1884,1888-1889,1892-1893,1896-" "1897,1900-1901,1904-1905,1908-1909,1912-1913,1916-1917,1920,1924,1928,1932,1936,1940,1944,1948,1952-1953,1956-19" "57,1960-1961,1964-1965,1968-1969,1972-1973,1976-1977,1980-1981,1984,1988,1992,1996,2000,2004,2008,2012,2016-2017" ",2020-2021,2024-2025,2028-2029,2032-2033,2036-2037,2040-2041,2044-2045,2048,2052,2056,2060,2064,2068,2072,2076,2" "080-2081,2084-2085,2088-2089,2092-2093,2096-2097,2100-2101,2104-2105,2108-2109,2112,2116,2120,2124,2128,2132,213" "6,2140,2144-2145,2148-2149,2152-2153,2156-2157,2160-2161,2164-2165,2168-2169,2172-2173,2176,2180,2184,2188,2192," "2196,2200,2204,2208-2209,2212-2213,2216-2217,2220-2221,2224-2225,2228-2229,2232-2233,2236-2237,2240,2244,2248,22" "52,2256,2260,2264,2268,2272-2273,2276-2277,2280-2281,2284-2285,2288-2289,2292-2293,2296-2297,2300-2301,2304,2308" ",2312,2316,2320,2324,2328,2332,2336-2337,2340-2341,2344-2345,2348-2349,2352-2353,2356-2357,2360-2361,2364-2365,2" "368,2372,2376,2380,2384,2388,2392,2396,2400-2401,2404-2405,2408-2409,2412-2413,2416-2417,2420-2421,2424-2425,242" "8-2429,2432,2436,2440,2444,2448,2452,2456,2460,2464-2465,2468-2469,2472-2473,2476-2477,2480-2481,2484-2485,2488-" "2489,2492-2493,2496,2500,2504,2508,2512,2516,2520,2524,2528-2529,2532-2533,2536-2537,2540-2541,2544-2545,2548-25" "49,2552-2553,2556-2557\n"; static const struct test_bitmap_print test_print[] __initconst = …; static void __init test_bitmap_print_buf(void) { … } /* * FIXME: Clang breaks compile-time evaluations when KASAN and GCOV are enabled. * To workaround it, GCOV is force-disabled in Makefile for this configuration. */ static void __init test_bitmap_const_eval(void) { … } /* * Test bitmap should be big enough to include the cases when start is not in * the first word, and start+nbits lands in the following word. */ #define TEST_BIT_LEN … /* * Helper function to test bitmap_write() overwriting the chosen byte pattern. */ static void __init test_bitmap_write_helper(const char *pattern) { … } static void __init test_bitmap_read_write(void) { … } static void __init test_bitmap_read_perf(void) { … } static void __init test_bitmap_write_perf(void) { … } #undef TEST_BIT_LEN static void __init selftest(void) { … } KSTM_MODULE_LOADERS(test_bitmap); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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