Commit | Line | Data |
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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
5fd003f5 | 2 | /* |
780ff33b | 3 | * Test cases for bitmap API. |
5fd003f5 DD |
4 | */ |
5 | ||
6 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
7 | ||
8 | #include <linux/bitmap.h> | |
9 | #include <linux/init.h> | |
10 | #include <linux/kernel.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/printk.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/string.h> | |
6ea86bdf | 15 | #include <linux/uaccess.h> |
5fd003f5 | 16 | |
6b1a4d5b TH |
17 | #include "../tools/testing/selftests/kselftest_module.h" |
18 | ||
4e89a787 | 19 | KSTM_MODULE_GLOBALS(); |
5fd003f5 DD |
20 | |
21 | static char pbl_buffer[PAGE_SIZE] __initdata; | |
291f93ca | 22 | static char print_buf[PAGE_SIZE * 2] __initdata; |
5fd003f5 | 23 | |
c21dd8a7 AS |
24 | static const unsigned long exp1[] __initconst = { |
25 | BITMAP_FROM_U64(1), | |
26 | BITMAP_FROM_U64(2), | |
27 | BITMAP_FROM_U64(0x0000ffff), | |
28 | BITMAP_FROM_U64(0xffff0000), | |
29 | BITMAP_FROM_U64(0x55555555), | |
30 | BITMAP_FROM_U64(0xaaaaaaaa), | |
31 | BITMAP_FROM_U64(0x11111111), | |
32 | BITMAP_FROM_U64(0x22222222), | |
33 | BITMAP_FROM_U64(0xffffffff), | |
34 | BITMAP_FROM_U64(0xfffffffe), | |
35 | BITMAP_FROM_U64(0x3333333311111111ULL), | |
36 | BITMAP_FROM_U64(0xffffffff77777777ULL), | |
37 | BITMAP_FROM_U64(0), | |
97330db3 PG |
38 | BITMAP_FROM_U64(0x00008000), |
39 | BITMAP_FROM_U64(0x80000000), | |
c21dd8a7 AS |
40 | }; |
41 | ||
42 | static const unsigned long exp2[] __initconst = { | |
43 | BITMAP_FROM_U64(0x3333333311111111ULL), | |
44 | BITMAP_FROM_U64(0xffffffff77777777ULL), | |
45 | }; | |
5fd003f5 | 46 | |
30544ed5 AS |
47 | /* Fibonacci sequence */ |
48 | static const unsigned long exp2_to_exp3_mask[] __initconst = { | |
49 | BITMAP_FROM_U64(0x008000020020212eULL), | |
50 | }; | |
51 | /* exp3_0_1 = (exp2[0] & ~exp2_to_exp3_mask) | (exp2[1] & exp2_to_exp3_mask) */ | |
52 | static const unsigned long exp3_0_1[] __initconst = { | |
53 | BITMAP_FROM_U64(0x33b3333311313137ULL), | |
54 | }; | |
55 | /* exp3_1_0 = (exp2[1] & ~exp2_to_exp3_mask) | (exp2[0] & exp2_to_exp3_mask) */ | |
56 | static const unsigned long exp3_1_0[] __initconst = { | |
57 | BITMAP_FROM_U64(0xff7fffff77575751ULL), | |
58 | }; | |
59 | ||
5fd003f5 DD |
60 | static bool __init |
61 | __check_eq_uint(const char *srcfile, unsigned int line, | |
62 | const unsigned int exp_uint, unsigned int x) | |
63 | { | |
64 | if (exp_uint != x) { | |
3aa56885 | 65 | pr_err("[%s:%u] expected %u, got %u\n", |
5fd003f5 DD |
66 | srcfile, line, exp_uint, x); |
67 | return false; | |
68 | } | |
69 | return true; | |
70 | } | |
71 | ||
72 | ||
73 | static bool __init | |
74 | __check_eq_bitmap(const char *srcfile, unsigned int line, | |
3aa56885 YN |
75 | const unsigned long *exp_bmap, const unsigned long *bmap, |
76 | unsigned int nbits) | |
5fd003f5 | 77 | { |
5fd003f5 DD |
78 | if (!bitmap_equal(exp_bmap, bmap, nbits)) { |
79 | pr_warn("[%s:%u] bitmaps contents differ: expected \"%*pbl\", got \"%*pbl\"\n", | |
80 | srcfile, line, | |
3aa56885 | 81 | nbits, exp_bmap, nbits, bmap); |
5fd003f5 DD |
82 | return false; |
83 | } | |
84 | return true; | |
85 | } | |
86 | ||
87 | static bool __init | |
88 | __check_eq_pbl(const char *srcfile, unsigned int line, | |
89 | const char *expected_pbl, | |
90 | const unsigned long *bitmap, unsigned int nbits) | |
91 | { | |
92 | snprintf(pbl_buffer, sizeof(pbl_buffer), "%*pbl", nbits, bitmap); | |
93 | if (strcmp(expected_pbl, pbl_buffer)) { | |
94 | pr_warn("[%s:%u] expected \"%s\", got \"%s\"\n", | |
95 | srcfile, line, | |
96 | expected_pbl, pbl_buffer); | |
97 | return false; | |
98 | } | |
99 | return true; | |
100 | } | |
101 | ||
3aa56885 YN |
102 | static bool __init |
103 | __check_eq_u32_array(const char *srcfile, unsigned int line, | |
104 | const u32 *exp_arr, unsigned int exp_len, | |
105 | const u32 *arr, unsigned int len) __used; | |
5fd003f5 DD |
106 | static bool __init |
107 | __check_eq_u32_array(const char *srcfile, unsigned int line, | |
108 | const u32 *exp_arr, unsigned int exp_len, | |
109 | const u32 *arr, unsigned int len) | |
110 | { | |
111 | if (exp_len != len) { | |
112 | pr_warn("[%s:%u] array length differ: expected %u, got %u\n", | |
113 | srcfile, line, | |
114 | exp_len, len); | |
115 | return false; | |
116 | } | |
117 | ||
118 | if (memcmp(exp_arr, arr, len*sizeof(*arr))) { | |
119 | pr_warn("[%s:%u] array contents differ\n", srcfile, line); | |
120 | print_hex_dump(KERN_WARNING, " exp: ", DUMP_PREFIX_OFFSET, | |
121 | 32, 4, exp_arr, exp_len*sizeof(*exp_arr), false); | |
122 | print_hex_dump(KERN_WARNING, " got: ", DUMP_PREFIX_OFFSET, | |
123 | 32, 4, arr, len*sizeof(*arr), false); | |
124 | return false; | |
125 | } | |
126 | ||
127 | return true; | |
128 | } | |
129 | ||
e4aa168d WBG |
130 | static bool __init __check_eq_clump8(const char *srcfile, unsigned int line, |
131 | const unsigned int offset, | |
132 | const unsigned int size, | |
133 | const unsigned char *const clump_exp, | |
134 | const unsigned long *const clump) | |
135 | { | |
136 | unsigned long exp; | |
137 | ||
138 | if (offset >= size) { | |
139 | pr_warn("[%s:%u] bit offset for clump out-of-bounds: expected less than %u, got %u\n", | |
140 | srcfile, line, size, offset); | |
141 | return false; | |
142 | } | |
143 | ||
144 | exp = clump_exp[offset / 8]; | |
145 | if (!exp) { | |
146 | pr_warn("[%s:%u] bit offset for zero clump: expected nonzero clump, got bit offset %u with clump value 0", | |
147 | srcfile, line, offset); | |
148 | return false; | |
149 | } | |
150 | ||
151 | if (*clump != exp) { | |
152 | pr_warn("[%s:%u] expected clump value of 0x%lX, got clump value of 0x%lX", | |
153 | srcfile, line, exp, *clump); | |
154 | return false; | |
155 | } | |
156 | ||
157 | return true; | |
158 | } | |
159 | ||
291f93ca BS |
160 | static bool __init |
161 | __check_eq_str(const char *srcfile, unsigned int line, | |
162 | const char *exp_str, const char *str, | |
163 | unsigned int len) | |
164 | { | |
165 | bool eq; | |
166 | ||
167 | eq = strncmp(exp_str, str, len) == 0; | |
168 | if (!eq) | |
169 | pr_err("[%s:%u] expected %s, got %s\n", srcfile, line, exp_str, str); | |
170 | ||
171 | return eq; | |
172 | } | |
173 | ||
5fd003f5 DD |
174 | #define __expect_eq(suffix, ...) \ |
175 | ({ \ | |
176 | int result = 0; \ | |
177 | total_tests++; \ | |
178 | if (!__check_eq_ ## suffix(__FILE__, __LINE__, \ | |
179 | ##__VA_ARGS__)) { \ | |
180 | failed_tests++; \ | |
181 | result = 1; \ | |
182 | } \ | |
183 | result; \ | |
184 | }) | |
185 | ||
186 | #define expect_eq_uint(...) __expect_eq(uint, ##__VA_ARGS__) | |
187 | #define expect_eq_bitmap(...) __expect_eq(bitmap, ##__VA_ARGS__) | |
188 | #define expect_eq_pbl(...) __expect_eq(pbl, ##__VA_ARGS__) | |
189 | #define expect_eq_u32_array(...) __expect_eq(u32_array, ##__VA_ARGS__) | |
e4aa168d | 190 | #define expect_eq_clump8(...) __expect_eq(clump8, ##__VA_ARGS__) |
291f93ca | 191 | #define expect_eq_str(...) __expect_eq(str, ##__VA_ARGS__) |
5fd003f5 | 192 | |
ee3527bd AS |
193 | static void __init test_zero_clear(void) |
194 | { | |
195 | DECLARE_BITMAP(bmap, 1024); | |
196 | ||
197 | /* Known way to set all bits */ | |
198 | memset(bmap, 0xff, 128); | |
199 | ||
200 | expect_eq_pbl("0-22", bmap, 23); | |
201 | expect_eq_pbl("0-1023", bmap, 1024); | |
202 | ||
203 | /* single-word bitmaps */ | |
204 | bitmap_clear(bmap, 0, 9); | |
205 | expect_eq_pbl("9-1023", bmap, 1024); | |
206 | ||
207 | bitmap_zero(bmap, 35); | |
208 | expect_eq_pbl("64-1023", bmap, 1024); | |
209 | ||
210 | /* cross boundaries operations */ | |
211 | bitmap_clear(bmap, 79, 19); | |
212 | expect_eq_pbl("64-78,98-1023", bmap, 1024); | |
213 | ||
214 | bitmap_zero(bmap, 115); | |
215 | expect_eq_pbl("128-1023", bmap, 1024); | |
216 | ||
217 | /* Zeroing entire area */ | |
218 | bitmap_zero(bmap, 1024); | |
219 | expect_eq_pbl("", bmap, 1024); | |
220 | } | |
221 | ||
978f369c AS |
222 | static void __init test_fill_set(void) |
223 | { | |
224 | DECLARE_BITMAP(bmap, 1024); | |
225 | ||
226 | /* Known way to clear all bits */ | |
227 | memset(bmap, 0x00, 128); | |
228 | ||
229 | expect_eq_pbl("", bmap, 23); | |
230 | expect_eq_pbl("", bmap, 1024); | |
231 | ||
232 | /* single-word bitmaps */ | |
233 | bitmap_set(bmap, 0, 9); | |
234 | expect_eq_pbl("0-8", bmap, 1024); | |
235 | ||
236 | bitmap_fill(bmap, 35); | |
237 | expect_eq_pbl("0-63", bmap, 1024); | |
238 | ||
239 | /* cross boundaries operations */ | |
240 | bitmap_set(bmap, 79, 19); | |
241 | expect_eq_pbl("0-63,79-97", bmap, 1024); | |
242 | ||
243 | bitmap_fill(bmap, 115); | |
244 | expect_eq_pbl("0-127", bmap, 1024); | |
245 | ||
246 | /* Zeroing entire area */ | |
247 | bitmap_fill(bmap, 1024); | |
248 | expect_eq_pbl("0-1023", bmap, 1024); | |
249 | } | |
250 | ||
fe81814c | 251 | static void __init test_copy(void) |
5fd003f5 DD |
252 | { |
253 | DECLARE_BITMAP(bmap1, 1024); | |
254 | DECLARE_BITMAP(bmap2, 1024); | |
255 | ||
256 | bitmap_zero(bmap1, 1024); | |
257 | bitmap_zero(bmap2, 1024); | |
258 | ||
259 | /* single-word bitmaps */ | |
fe81814c | 260 | bitmap_set(bmap1, 0, 19); |
5fd003f5 DD |
261 | bitmap_copy(bmap2, bmap1, 23); |
262 | expect_eq_pbl("0-18", bmap2, 1024); | |
263 | ||
fe81814c | 264 | bitmap_set(bmap2, 0, 23); |
5fd003f5 DD |
265 | bitmap_copy(bmap2, bmap1, 23); |
266 | expect_eq_pbl("0-18", bmap2, 1024); | |
267 | ||
5fd003f5 | 268 | /* multi-word bitmaps */ |
fe81814c | 269 | bitmap_set(bmap1, 0, 109); |
5fd003f5 DD |
270 | bitmap_copy(bmap2, bmap1, 1024); |
271 | expect_eq_pbl("0-108", bmap2, 1024); | |
272 | ||
273 | bitmap_fill(bmap2, 1024); | |
5fd003f5 DD |
274 | bitmap_copy(bmap2, bmap1, 1024); |
275 | expect_eq_pbl("0-108", bmap2, 1024); | |
276 | ||
277 | /* the following tests assume a 32- or 64-bit arch (even 128b | |
278 | * if we care) | |
279 | */ | |
280 | ||
281 | bitmap_fill(bmap2, 1024); | |
282 | bitmap_copy(bmap2, bmap1, 109); /* ... but 0-padded til word length */ | |
283 | expect_eq_pbl("0-108,128-1023", bmap2, 1024); | |
284 | ||
285 | bitmap_fill(bmap2, 1024); | |
286 | bitmap_copy(bmap2, bmap1, 97); /* ... but aligned on word length */ | |
287 | expect_eq_pbl("0-108,128-1023", bmap2, 1024); | |
5fd003f5 DD |
288 | } |
289 | ||
30544ed5 AS |
290 | #define EXP2_IN_BITS (sizeof(exp2) * 8) |
291 | ||
292 | static void __init test_replace(void) | |
293 | { | |
294 | unsigned int nbits = 64; | |
69334ca5 | 295 | unsigned int nlongs = DIV_ROUND_UP(nbits, BITS_PER_LONG); |
30544ed5 AS |
296 | DECLARE_BITMAP(bmap, 1024); |
297 | ||
caa7f776 AS |
298 | BUILD_BUG_ON(EXP2_IN_BITS < nbits * 2); |
299 | ||
30544ed5 | 300 | bitmap_zero(bmap, 1024); |
69334ca5 | 301 | bitmap_replace(bmap, &exp2[0 * nlongs], &exp2[1 * nlongs], exp2_to_exp3_mask, nbits); |
30544ed5 AS |
302 | expect_eq_bitmap(bmap, exp3_0_1, nbits); |
303 | ||
304 | bitmap_zero(bmap, 1024); | |
69334ca5 | 305 | bitmap_replace(bmap, &exp2[1 * nlongs], &exp2[0 * nlongs], exp2_to_exp3_mask, nbits); |
30544ed5 AS |
306 | expect_eq_bitmap(bmap, exp3_1_0, nbits); |
307 | ||
308 | bitmap_fill(bmap, 1024); | |
69334ca5 | 309 | bitmap_replace(bmap, &exp2[0 * nlongs], &exp2[1 * nlongs], exp2_to_exp3_mask, nbits); |
30544ed5 AS |
310 | expect_eq_bitmap(bmap, exp3_0_1, nbits); |
311 | ||
312 | bitmap_fill(bmap, 1024); | |
69334ca5 | 313 | bitmap_replace(bmap, &exp2[1 * nlongs], &exp2[0 * nlongs], exp2_to_exp3_mask, nbits); |
30544ed5 AS |
314 | expect_eq_bitmap(bmap, exp3_1_0, nbits); |
315 | } | |
316 | ||
7eb2e94e YN |
317 | #define PARSE_TIME 0x1 |
318 | #define NO_LEN 0x2 | |
6df0d464 YN |
319 | |
320 | struct test_bitmap_parselist{ | |
321 | const int errno; | |
322 | const char *in; | |
323 | const unsigned long *expected; | |
324 | const int nbits; | |
325 | const int flags; | |
326 | }; | |
327 | ||
6df0d464 | 328 | static const struct test_bitmap_parselist parselist_tests[] __initconst = { |
60ef6900 YN |
329 | #define step (sizeof(u64) / sizeof(unsigned long)) |
330 | ||
0ee312e3 AS |
331 | {0, "0", &exp1[0], 8, 0}, |
332 | {0, "1", &exp1[1 * step], 8, 0}, | |
333 | {0, "0-15", &exp1[2 * step], 32, 0}, | |
334 | {0, "16-31", &exp1[3 * step], 32, 0}, | |
335 | {0, "0-31:1/2", &exp1[4 * step], 32, 0}, | |
336 | {0, "1-31:1/2", &exp1[5 * step], 32, 0}, | |
337 | {0, "0-31:1/4", &exp1[6 * step], 32, 0}, | |
338 | {0, "1-31:1/4", &exp1[7 * step], 32, 0}, | |
339 | {0, "0-31:4/4", &exp1[8 * step], 32, 0}, | |
340 | {0, "1-31:4/4", &exp1[9 * step], 32, 0}, | |
341 | {0, "0-31:1/4,32-63:2/4", &exp1[10 * step], 64, 0}, | |
342 | {0, "0-31:3/4,32-63:4/4", &exp1[11 * step], 64, 0}, | |
343 | {0, " ,, 0-31:3/4 ,, 32-63:4/4 ,, ", &exp1[11 * step], 64, 0}, | |
6df0d464 YN |
344 | |
345 | {0, "0-31:1/4,32-63:2/4,64-95:3/4,96-127:4/4", exp2, 128, 0}, | |
346 | ||
347 | {0, "0-2047:128/256", NULL, 2048, PARSE_TIME}, | |
348 | ||
0ee312e3 AS |
349 | {0, "", &exp1[12 * step], 8, 0}, |
350 | {0, "\n", &exp1[12 * step], 8, 0}, | |
351 | {0, ",, ,, , , ,", &exp1[12 * step], 8, 0}, | |
352 | {0, " , ,, , , ", &exp1[12 * step], 8, 0}, | |
353 | {0, " , ,, , , \n", &exp1[12 * step], 8, 0}, | |
a4ab5050 | 354 | |
97330db3 PG |
355 | {0, "0-0", &exp1[0], 32, 0}, |
356 | {0, "1-1", &exp1[1 * step], 32, 0}, | |
357 | {0, "15-15", &exp1[13 * step], 32, 0}, | |
358 | {0, "31-31", &exp1[14 * step], 32, 0}, | |
359 | ||
360 | {0, "0-0:0/1", &exp1[12 * step], 32, 0}, | |
361 | {0, "0-0:1/1", &exp1[0], 32, 0}, | |
362 | {0, "0-0:1/31", &exp1[0], 32, 0}, | |
363 | {0, "0-0:31/31", &exp1[0], 32, 0}, | |
364 | {0, "1-1:1/1", &exp1[1 * step], 32, 0}, | |
365 | {0, "0-15:16/31", &exp1[2 * step], 32, 0}, | |
366 | {0, "15-15:1/2", &exp1[13 * step], 32, 0}, | |
367 | {0, "15-15:31/31", &exp1[13 * step], 32, 0}, | |
368 | {0, "15-31:1/31", &exp1[13 * step], 32, 0}, | |
369 | {0, "16-31:16/31", &exp1[3 * step], 32, 0}, | |
370 | {0, "31-31:31/31", &exp1[14 * step], 32, 0}, | |
371 | ||
99c58d1a PG |
372 | {0, "N-N", &exp1[14 * step], 32, 0}, |
373 | {0, "0-0:1/N", &exp1[0], 32, 0}, | |
374 | {0, "0-0:N/N", &exp1[0], 32, 0}, | |
375 | {0, "0-15:16/N", &exp1[2 * step], 32, 0}, | |
376 | {0, "15-15:N/N", &exp1[13 * step], 32, 0}, | |
377 | {0, "15-N:1/N", &exp1[13 * step], 32, 0}, | |
378 | {0, "16-N:16/N", &exp1[3 * step], 32, 0}, | |
379 | {0, "N-N:N/N", &exp1[14 * step], 32, 0}, | |
380 | ||
381 | {0, "0-N:1/3,1-N:1/3,2-N:1/3", &exp1[8 * step], 32, 0}, | |
97330db3 PG |
382 | {0, "0-31:1/3,1-31:1/3,2-31:1/3", &exp1[8 * step], 32, 0}, |
383 | {0, "1-10:8/12,8-31:24/29,0-31:0/3", &exp1[9 * step], 32, 0}, | |
384 | ||
b18def12 YN |
385 | {0, "all", &exp1[8 * step], 32, 0}, |
386 | {0, "0, 1, all, ", &exp1[8 * step], 32, 0}, | |
387 | {0, "all:1/2", &exp1[4 * step], 32, 0}, | |
388 | {0, "ALL:1/2", &exp1[4 * step], 32, 0}, | |
389 | {-EINVAL, "al", NULL, 8, 0}, | |
390 | {-EINVAL, "alll", NULL, 8, 0}, | |
391 | ||
6df0d464 YN |
392 | {-EINVAL, "-1", NULL, 8, 0}, |
393 | {-EINVAL, "-0", NULL, 8, 0}, | |
394 | {-EINVAL, "10-1", NULL, 8, 0}, | |
6fef5905 PG |
395 | {-ERANGE, "8-8", NULL, 8, 0}, |
396 | {-ERANGE, "0-31", NULL, 8, 0}, | |
494215fb PG |
397 | {-EINVAL, "0-31:", NULL, 32, 0}, |
398 | {-EINVAL, "0-31:0", NULL, 32, 0}, | |
399 | {-EINVAL, "0-31:0/", NULL, 32, 0}, | |
400 | {-EINVAL, "0-31:0/0", NULL, 32, 0}, | |
401 | {-EINVAL, "0-31:1/0", NULL, 32, 0}, | |
402 | {-EINVAL, "0-31:10/1", NULL, 32, 0}, | |
a4ab5050 YN |
403 | {-EOVERFLOW, "0-98765432123456789:10/1", NULL, 8, 0}, |
404 | ||
405 | {-EINVAL, "a-31", NULL, 8, 0}, | |
406 | {-EINVAL, "0-a1", NULL, 8, 0}, | |
407 | {-EINVAL, "a-31:10/1", NULL, 8, 0}, | |
408 | {-EINVAL, "0-31:a/1", NULL, 8, 0}, | |
409 | {-EINVAL, "0-\n", NULL, 8, 0}, | |
54224044 | 410 | |
6df0d464 YN |
411 | }; |
412 | ||
81b1e242 | 413 | static void __init test_bitmap_parselist(void) |
6df0d464 YN |
414 | { |
415 | int i; | |
416 | int err; | |
0c2111a5 | 417 | ktime_t time; |
6df0d464 YN |
418 | DECLARE_BITMAP(bmap, 2048); |
419 | ||
420 | for (i = 0; i < ARRAY_SIZE(parselist_tests); i++) { | |
421 | #define ptest parselist_tests[i] | |
422 | ||
81b1e242 CH |
423 | time = ktime_get(); |
424 | err = bitmap_parselist(ptest.in, bmap, ptest.nbits); | |
425 | time = ktime_get() - time; | |
6df0d464 YN |
426 | |
427 | if (err != ptest.errno) { | |
81b1e242 CH |
428 | pr_err("parselist: %d: input is %s, errno is %d, expected %d\n", |
429 | i, ptest.in, err, ptest.errno); | |
6df0d464 YN |
430 | continue; |
431 | } | |
432 | ||
433 | if (!err && ptest.expected | |
434 | && !__bitmap_equal(bmap, ptest.expected, ptest.nbits)) { | |
81b1e242 CH |
435 | pr_err("parselist: %d: input is %s, result is 0x%lx, expected 0x%lx\n", |
436 | i, ptest.in, bmap[0], | |
6ea86bdf | 437 | *ptest.expected); |
6df0d464 YN |
438 | continue; |
439 | } | |
440 | ||
441 | if (ptest.flags & PARSE_TIME) | |
81b1e242 CH |
442 | pr_err("parselist: %d: input is '%s' OK, Time: %llu\n", |
443 | i, ptest.in, time); | |
54224044 AS |
444 | |
445 | #undef ptest | |
6df0d464 YN |
446 | } |
447 | } | |
448 | ||
db731300 YN |
449 | static void __init test_bitmap_printlist(void) |
450 | { | |
451 | unsigned long *bmap = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
452 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
453 | char expected[256]; | |
454 | int ret, slen; | |
455 | ktime_t time; | |
456 | ||
457 | if (!buf || !bmap) | |
458 | goto out; | |
459 | ||
460 | memset(bmap, -1, PAGE_SIZE); | |
461 | slen = snprintf(expected, 256, "0-%ld", PAGE_SIZE * 8 - 1); | |
462 | if (slen < 0) | |
463 | goto out; | |
464 | ||
465 | time = ktime_get(); | |
466 | ret = bitmap_print_to_pagebuf(true, buf, bmap, PAGE_SIZE * 8); | |
467 | time = ktime_get() - time; | |
468 | ||
469 | if (ret != slen + 1) { | |
470 | pr_err("bitmap_print_to_pagebuf: result is %d, expected %d\n", ret, slen); | |
471 | goto out; | |
472 | } | |
473 | ||
474 | if (strncmp(buf, expected, slen)) { | |
475 | pr_err("bitmap_print_to_pagebuf: result is %s, expected %s\n", buf, expected); | |
476 | goto out; | |
477 | } | |
478 | ||
479 | pr_err("bitmap_print_to_pagebuf: input is '%s', Time: %llu\n", buf, time); | |
480 | out: | |
481 | kfree(buf); | |
482 | kfree(bmap); | |
483 | } | |
484 | ||
7eb2e94e YN |
485 | static const unsigned long parse_test[] __initconst = { |
486 | BITMAP_FROM_U64(0), | |
487 | BITMAP_FROM_U64(1), | |
488 | BITMAP_FROM_U64(0xdeadbeef), | |
489 | BITMAP_FROM_U64(0x100000000ULL), | |
490 | }; | |
491 | ||
492 | static const unsigned long parse_test2[] __initconst = { | |
493 | BITMAP_FROM_U64(0x100000000ULL), BITMAP_FROM_U64(0xdeadbeef), | |
494 | BITMAP_FROM_U64(0x100000000ULL), BITMAP_FROM_U64(0xbaadf00ddeadbeef), | |
495 | BITMAP_FROM_U64(0x100000000ULL), BITMAP_FROM_U64(0x0badf00ddeadbeef), | |
496 | }; | |
497 | ||
498 | static const struct test_bitmap_parselist parse_tests[] __initconst = { | |
809e308f YN |
499 | {0, "", &parse_test[0 * step], 32, 0}, |
500 | {0, " ", &parse_test[0 * step], 32, 0}, | |
7eb2e94e | 501 | {0, "0", &parse_test[0 * step], 32, 0}, |
809e308f | 502 | {0, "0\n", &parse_test[0 * step], 32, 0}, |
7eb2e94e YN |
503 | {0, "1", &parse_test[1 * step], 32, 0}, |
504 | {0, "deadbeef", &parse_test[2 * step], 32, 0}, | |
505 | {0, "1,0", &parse_test[3 * step], 33, 0}, | |
809e308f | 506 | {0, "deadbeef,\n,0,1", &parse_test[2 * step], 96, 0}, |
7eb2e94e YN |
507 | |
508 | {0, "deadbeef,1,0", &parse_test2[0 * 2 * step], 96, 0}, | |
509 | {0, "baadf00d,deadbeef,1,0", &parse_test2[1 * 2 * step], 128, 0}, | |
510 | {0, "badf00d,deadbeef,1,0", &parse_test2[2 * 2 * step], 124, 0}, | |
809e308f YN |
511 | {0, "badf00d,deadbeef,1,0", &parse_test2[2 * 2 * step], 124, NO_LEN}, |
512 | {0, " badf00d,deadbeef,1,0 ", &parse_test2[2 * 2 * step], 124, 0}, | |
513 | {0, " , badf00d,deadbeef,1,0 , ", &parse_test2[2 * 2 * step], 124, 0}, | |
514 | {0, " , badf00d, ,, ,,deadbeef,1,0 , ", &parse_test2[2 * 2 * step], 124, 0}, | |
7eb2e94e YN |
515 | |
516 | {-EINVAL, "goodfood,deadbeef,1,0", NULL, 128, 0}, | |
517 | {-EOVERFLOW, "3,0", NULL, 33, 0}, | |
518 | {-EOVERFLOW, "123badf00d,deadbeef,1,0", NULL, 128, 0}, | |
519 | {-EOVERFLOW, "badf00d,deadbeef,1,0", NULL, 90, 0}, | |
520 | {-EOVERFLOW, "fbadf00d,deadbeef,1,0", NULL, 95, 0}, | |
521 | {-EOVERFLOW, "badf00d,deadbeef,1,0", NULL, 100, 0}, | |
522 | #undef step | |
523 | }; | |
524 | ||
81b1e242 | 525 | static void __init test_bitmap_parse(void) |
7eb2e94e YN |
526 | { |
527 | int i; | |
528 | int err; | |
529 | ktime_t time; | |
530 | DECLARE_BITMAP(bmap, 2048); | |
7eb2e94e YN |
531 | |
532 | for (i = 0; i < ARRAY_SIZE(parse_tests); i++) { | |
533 | struct test_bitmap_parselist test = parse_tests[i]; | |
81b1e242 | 534 | size_t len = test.flags & NO_LEN ? UINT_MAX : strlen(test.in); |
7eb2e94e | 535 | |
81b1e242 CH |
536 | time = ktime_get(); |
537 | err = bitmap_parse(test.in, len, bmap, test.nbits); | |
538 | time = ktime_get() - time; | |
7eb2e94e YN |
539 | |
540 | if (err != test.errno) { | |
81b1e242 CH |
541 | pr_err("parse: %d: input is %s, errno is %d, expected %d\n", |
542 | i, test.in, err, test.errno); | |
7eb2e94e YN |
543 | continue; |
544 | } | |
545 | ||
546 | if (!err && test.expected | |
547 | && !__bitmap_equal(bmap, test.expected, test.nbits)) { | |
81b1e242 CH |
548 | pr_err("parse: %d: input is %s, result is 0x%lx, expected 0x%lx\n", |
549 | i, test.in, bmap[0], | |
7eb2e94e YN |
550 | *test.expected); |
551 | continue; | |
552 | } | |
553 | ||
554 | if (test.flags & PARSE_TIME) | |
81b1e242 CH |
555 | pr_err("parse: %d: input is '%s' OK, Time: %llu\n", |
556 | i, test.in, time); | |
7eb2e94e YN |
557 | } |
558 | } | |
559 | ||
0ee312e3 | 560 | #define EXP1_IN_BITS (sizeof(exp1) * 8) |
f6f66c1b | 561 | |
3aa56885 | 562 | static void __init test_bitmap_arr32(void) |
5fd003f5 | 563 | { |
f6f66c1b | 564 | unsigned int nbits, next_bit; |
a4881d1c AS |
565 | u32 arr[EXP1_IN_BITS / 32]; |
566 | DECLARE_BITMAP(bmap2, EXP1_IN_BITS); | |
3aa56885 YN |
567 | |
568 | memset(arr, 0xa5, sizeof(arr)); | |
569 | ||
a4881d1c | 570 | for (nbits = 0; nbits < EXP1_IN_BITS; ++nbits) { |
0ee312e3 | 571 | bitmap_to_arr32(arr, exp1, nbits); |
3aa56885 | 572 | bitmap_from_arr32(bmap2, arr, nbits); |
0ee312e3 | 573 | expect_eq_bitmap(bmap2, exp1, nbits); |
3aa56885 YN |
574 | |
575 | next_bit = find_next_bit(bmap2, | |
576 | round_up(nbits, BITS_PER_LONG), nbits); | |
577 | if (next_bit < round_up(nbits, BITS_PER_LONG)) | |
578 | pr_err("bitmap_copy_arr32(nbits == %d:" | |
579 | " tail is not safely cleared: %d\n", | |
580 | nbits, next_bit); | |
581 | ||
a4881d1c | 582 | if (nbits < EXP1_IN_BITS - 32) |
3aa56885 YN |
583 | expect_eq_uint(arr[DIV_ROUND_UP(nbits, 32)], |
584 | 0xa5a5a5a5); | |
5fd003f5 DD |
585 | } |
586 | } | |
587 | ||
3cc78125 MW |
588 | static void noinline __init test_mem_optimisations(void) |
589 | { | |
590 | DECLARE_BITMAP(bmap1, 1024); | |
591 | DECLARE_BITMAP(bmap2, 1024); | |
592 | unsigned int start, nbits; | |
593 | ||
594 | for (start = 0; start < 1024; start += 8) { | |
3cc78125 | 595 | for (nbits = 0; nbits < 1024 - start; nbits += 8) { |
1e3054b9 MW |
596 | memset(bmap1, 0x5a, sizeof(bmap1)); |
597 | memset(bmap2, 0x5a, sizeof(bmap2)); | |
598 | ||
3cc78125 MW |
599 | bitmap_set(bmap1, start, nbits); |
600 | __bitmap_set(bmap2, start, nbits); | |
1e3054b9 | 601 | if (!bitmap_equal(bmap1, bmap2, 1024)) { |
3cc78125 | 602 | printk("set not equal %d %d\n", start, nbits); |
1e3054b9 MW |
603 | failed_tests++; |
604 | } | |
605 | if (!__bitmap_equal(bmap1, bmap2, 1024)) { | |
3cc78125 | 606 | printk("set not __equal %d %d\n", start, nbits); |
1e3054b9 MW |
607 | failed_tests++; |
608 | } | |
3cc78125 MW |
609 | |
610 | bitmap_clear(bmap1, start, nbits); | |
611 | __bitmap_clear(bmap2, start, nbits); | |
1e3054b9 | 612 | if (!bitmap_equal(bmap1, bmap2, 1024)) { |
3cc78125 | 613 | printk("clear not equal %d %d\n", start, nbits); |
1e3054b9 MW |
614 | failed_tests++; |
615 | } | |
616 | if (!__bitmap_equal(bmap1, bmap2, 1024)) { | |
3cc78125 MW |
617 | printk("clear not __equal %d %d\n", start, |
618 | nbits); | |
1e3054b9 MW |
619 | failed_tests++; |
620 | } | |
3cc78125 MW |
621 | } |
622 | } | |
623 | } | |
624 | ||
e4aa168d WBG |
625 | static const unsigned char clump_exp[] __initconst = { |
626 | 0x01, /* 1 bit set */ | |
627 | 0x02, /* non-edge 1 bit set */ | |
628 | 0x00, /* zero bits set */ | |
629 | 0x38, /* 3 bits set across 4-bit boundary */ | |
630 | 0x38, /* Repeated clump */ | |
631 | 0x0F, /* 4 bits set */ | |
632 | 0xFF, /* all bits set */ | |
633 | 0x05, /* non-adjacent 2 bits set */ | |
634 | }; | |
635 | ||
636 | static void __init test_for_each_set_clump8(void) | |
637 | { | |
638 | #define CLUMP_EXP_NUMBITS 64 | |
639 | DECLARE_BITMAP(bits, CLUMP_EXP_NUMBITS); | |
640 | unsigned int start; | |
641 | unsigned long clump; | |
642 | ||
643 | /* set bitmap to test case */ | |
644 | bitmap_zero(bits, CLUMP_EXP_NUMBITS); | |
645 | bitmap_set(bits, 0, 1); /* 0x01 */ | |
646 | bitmap_set(bits, 9, 1); /* 0x02 */ | |
647 | bitmap_set(bits, 27, 3); /* 0x28 */ | |
648 | bitmap_set(bits, 35, 3); /* 0x28 */ | |
649 | bitmap_set(bits, 40, 4); /* 0x0F */ | |
650 | bitmap_set(bits, 48, 8); /* 0xFF */ | |
651 | bitmap_set(bits, 56, 1); /* 0x05 - part 1 */ | |
652 | bitmap_set(bits, 58, 1); /* 0x05 - part 2 */ | |
653 | ||
654 | for_each_set_clump8(start, clump, bits, CLUMP_EXP_NUMBITS) | |
655 | expect_eq_clump8(start, CLUMP_EXP_NUMBITS, clump_exp, &clump); | |
656 | } | |
657 | ||
bcb32a1d SB |
658 | struct test_bitmap_cut { |
659 | unsigned int first; | |
660 | unsigned int cut; | |
661 | unsigned int nbits; | |
662 | unsigned long in[4]; | |
663 | unsigned long expected[4]; | |
664 | }; | |
665 | ||
666 | static struct test_bitmap_cut test_cut[] = { | |
667 | { 0, 0, 8, { 0x0000000aUL, }, { 0x0000000aUL, }, }, | |
668 | { 0, 0, 32, { 0xdadadeadUL, }, { 0xdadadeadUL, }, }, | |
669 | { 0, 3, 8, { 0x000000aaUL, }, { 0x00000015UL, }, }, | |
670 | { 3, 3, 8, { 0x000000aaUL, }, { 0x00000012UL, }, }, | |
671 | { 0, 1, 32, { 0xa5a5a5a5UL, }, { 0x52d2d2d2UL, }, }, | |
672 | { 0, 8, 32, { 0xdeadc0deUL, }, { 0x00deadc0UL, }, }, | |
673 | { 1, 1, 32, { 0x5a5a5a5aUL, }, { 0x2d2d2d2cUL, }, }, | |
674 | { 0, 15, 32, { 0xa5a5a5a5UL, }, { 0x00014b4bUL, }, }, | |
675 | { 0, 16, 32, { 0xa5a5a5a5UL, }, { 0x0000a5a5UL, }, }, | |
676 | { 15, 15, 32, { 0xa5a5a5a5UL, }, { 0x000125a5UL, }, }, | |
677 | { 15, 16, 32, { 0xa5a5a5a5UL, }, { 0x0000a5a5UL, }, }, | |
678 | { 16, 15, 32, { 0xa5a5a5a5UL, }, { 0x0001a5a5UL, }, }, | |
679 | ||
680 | { BITS_PER_LONG, BITS_PER_LONG, BITS_PER_LONG, | |
681 | { 0xa5a5a5a5UL, 0xa5a5a5a5UL, }, | |
682 | { 0xa5a5a5a5UL, 0xa5a5a5a5UL, }, | |
683 | }, | |
684 | { 1, BITS_PER_LONG - 1, BITS_PER_LONG, | |
685 | { 0xa5a5a5a5UL, 0xa5a5a5a5UL, }, | |
686 | { 0x00000001UL, 0x00000001UL, }, | |
687 | }, | |
688 | ||
689 | { 0, BITS_PER_LONG * 2, BITS_PER_LONG * 2 + 1, | |
690 | { 0xa5a5a5a5UL, 0x00000001UL, 0x00000001UL, 0x00000001UL }, | |
691 | { 0x00000001UL, }, | |
692 | }, | |
693 | { 16, BITS_PER_LONG * 2 + 1, BITS_PER_LONG * 2 + 1 + 16, | |
694 | { 0x0000ffffUL, 0x5a5a5a5aUL, 0x5a5a5a5aUL, 0x5a5a5a5aUL }, | |
695 | { 0x2d2dffffUL, }, | |
696 | }, | |
697 | }; | |
698 | ||
699 | static void __init test_bitmap_cut(void) | |
700 | { | |
701 | unsigned long b[5], *in = &b[1], *out = &b[0]; /* Partial overlap */ | |
702 | int i; | |
703 | ||
704 | for (i = 0; i < ARRAY_SIZE(test_cut); i++) { | |
705 | struct test_bitmap_cut *t = &test_cut[i]; | |
706 | ||
707 | memcpy(in, t->in, sizeof(t->in)); | |
708 | ||
709 | bitmap_cut(out, in, t->first, t->cut, t->nbits); | |
710 | ||
711 | expect_eq_bitmap(t->expected, out, t->nbits); | |
712 | } | |
713 | } | |
714 | ||
291f93ca BS |
715 | struct test_bitmap_print { |
716 | const unsigned long *bitmap; | |
717 | unsigned long nbits; | |
718 | const char *mask; | |
719 | const char *list; | |
720 | }; | |
721 | ||
722 | static const unsigned long small_bitmap[] __initconst = { | |
723 | BITMAP_FROM_U64(0x3333333311111111ULL), | |
724 | }; | |
725 | ||
726 | static const char small_mask[] __initconst = "33333333,11111111\n"; | |
727 | static const char small_list[] __initconst = "0,4,8,12,16,20,24,28,32-33,36-37,40-41,44-45,48-49,52-53,56-57,60-61\n"; | |
728 | ||
729 | static const unsigned long large_bitmap[] __initconst = { | |
730 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
731 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
732 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
733 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
734 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
735 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
736 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
737 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
738 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
739 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
740 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
741 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
742 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
743 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
744 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
745 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
746 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
747 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
748 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
749 | BITMAP_FROM_U64(0x3333333311111111ULL), BITMAP_FROM_U64(0x3333333311111111ULL), | |
750 | }; | |
751 | ||
752 | static const char large_mask[] __initconst = "33333333,11111111,33333333,11111111," | |
753 | "33333333,11111111,33333333,11111111," | |
754 | "33333333,11111111,33333333,11111111," | |
755 | "33333333,11111111,33333333,11111111," | |
756 | "33333333,11111111,33333333,11111111," | |
757 | "33333333,11111111,33333333,11111111," | |
758 | "33333333,11111111,33333333,11111111," | |
759 | "33333333,11111111,33333333,11111111," | |
760 | "33333333,11111111,33333333,11111111," | |
761 | "33333333,11111111,33333333,11111111," | |
762 | "33333333,11111111,33333333,11111111," | |
763 | "33333333,11111111,33333333,11111111," | |
764 | "33333333,11111111,33333333,11111111," | |
765 | "33333333,11111111,33333333,11111111," | |
766 | "33333333,11111111,33333333,11111111," | |
767 | "33333333,11111111,33333333,11111111," | |
768 | "33333333,11111111,33333333,11111111," | |
769 | "33333333,11111111,33333333,11111111," | |
770 | "33333333,11111111,33333333,11111111," | |
771 | "33333333,11111111,33333333,11111111\n"; | |
772 | ||
773 | static const char large_list[] __initconst = /* more than 4KB */ | |
774 | "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" | |
775 | "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" | |
776 | "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" | |
777 | "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" | |
778 | "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" | |
779 | "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" | |
780 | "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" | |
781 | "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" | |
782 | "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" | |
783 | "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" | |
784 | "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" | |
785 | "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" | |
786 | "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-" | |
787 | "1001,1004-1005,1008-1009,1012-1013,1016-1017,1020-1021,1024,1028,1032,1036,1040,1044,1048,1052,1056-1057,1060-10" | |
788 | "61,1064-1065,1068-1069,1072-1073,1076-1077,1080-1081,1084-1085,1088,1092,1096,1100,1104,1108,1112,1116,1120-1121" | |
789 | ",1124-1125,1128-1129,1132-1133,1136-1137,1140-1141,1144-1145,1148-1149,1152,1156,1160,1164,1168,1172,1176,1180,1" | |
790 | "184-1185,1188-1189,1192-1193,1196-1197,1200-1201,1204-1205,1208-1209,1212-1213,1216,1220,1224,1228,1232,1236,124" | |
791 | "0,1244,1248-1249,1252-1253,1256-1257,1260-1261,1264-1265,1268-1269,1272-1273,1276-1277,1280,1284,1288,1292,1296," | |
792 | "1300,1304,1308,1312-1313,1316-1317,1320-1321,1324-1325,1328-1329,1332-1333,1336-1337,1340-1341,1344,1348,1352,13" | |
793 | "56,1360,1364,1368,1372,1376-1377,1380-1381,1384-1385,1388-1389,1392-1393,1396-1397,1400-1401,1404-1405,1408,1412" | |
794 | ",1416,1420,1424,1428,1432,1436,1440-1441,1444-1445,1448-1449,1452-1453,1456-1457,1460-1461,1464-1465,1468-1469,1" | |
795 | "472,1476,1480,1484,1488,1492,1496,1500,1504-1505,1508-1509,1512-1513,1516-1517,1520-1521,1524-1525,1528-1529,153" | |
796 | "2-1533,1536,1540,1544,1548,1552,1556,1560,1564,1568-1569,1572-1573,1576-1577,1580-1581,1584-1585,1588-1589,1592-" | |
797 | "1593,1596-1597,1600,1604,1608,1612,1616,1620,1624,1628,1632-1633,1636-1637,1640-1641,1644-1645,1648-1649,1652-16" | |
798 | "53,1656-1657,1660-1661,1664,1668,1672,1676,1680,1684,1688,1692,1696-1697,1700-1701,1704-1705,1708-1709,1712-1713" | |
799 | ",1716-1717,1720-1721,1724-1725,1728,1732,1736,1740,1744,1748,1752,1756,1760-1761,1764-1765,1768-1769,1772-1773,1" | |
800 | "776-1777,1780-1781,1784-1785,1788-1789,1792,1796,1800,1804,1808,1812,1816,1820,1824-1825,1828-1829,1832-1833,183" | |
801 | "6-1837,1840-1841,1844-1845,1848-1849,1852-1853,1856,1860,1864,1868,1872,1876,1880,1884,1888-1889,1892-1893,1896-" | |
802 | "1897,1900-1901,1904-1905,1908-1909,1912-1913,1916-1917,1920,1924,1928,1932,1936,1940,1944,1948,1952-1953,1956-19" | |
803 | "57,1960-1961,1964-1965,1968-1969,1972-1973,1976-1977,1980-1981,1984,1988,1992,1996,2000,2004,2008,2012,2016-2017" | |
804 | ",2020-2021,2024-2025,2028-2029,2032-2033,2036-2037,2040-2041,2044-2045,2048,2052,2056,2060,2064,2068,2072,2076,2" | |
805 | "080-2081,2084-2085,2088-2089,2092-2093,2096-2097,2100-2101,2104-2105,2108-2109,2112,2116,2120,2124,2128,2132,213" | |
806 | "6,2140,2144-2145,2148-2149,2152-2153,2156-2157,2160-2161,2164-2165,2168-2169,2172-2173,2176,2180,2184,2188,2192," | |
807 | "2196,2200,2204,2208-2209,2212-2213,2216-2217,2220-2221,2224-2225,2228-2229,2232-2233,2236-2237,2240,2244,2248,22" | |
808 | "52,2256,2260,2264,2268,2272-2273,2276-2277,2280-2281,2284-2285,2288-2289,2292-2293,2296-2297,2300-2301,2304,2308" | |
809 | ",2312,2316,2320,2324,2328,2332,2336-2337,2340-2341,2344-2345,2348-2349,2352-2353,2356-2357,2360-2361,2364-2365,2" | |
810 | "368,2372,2376,2380,2384,2388,2392,2396,2400-2401,2404-2405,2408-2409,2412-2413,2416-2417,2420-2421,2424-2425,242" | |
811 | "8-2429,2432,2436,2440,2444,2448,2452,2456,2460,2464-2465,2468-2469,2472-2473,2476-2477,2480-2481,2484-2485,2488-" | |
812 | "2489,2492-2493,2496,2500,2504,2508,2512,2516,2520,2524,2528-2529,2532-2533,2536-2537,2540-2541,2544-2545,2548-25" | |
813 | "49,2552-2553,2556-2557\n"; | |
814 | ||
815 | static const struct test_bitmap_print test_print[] __initconst = { | |
816 | { small_bitmap, sizeof(small_bitmap) * BITS_PER_BYTE, small_mask, small_list }, | |
817 | { large_bitmap, sizeof(large_bitmap) * BITS_PER_BYTE, large_mask, large_list }, | |
818 | }; | |
819 | ||
820 | static void __init test_bitmap_print_buf(void) | |
821 | { | |
822 | int i; | |
823 | ||
824 | for (i = 0; i < ARRAY_SIZE(test_print); i++) { | |
825 | const struct test_bitmap_print *t = &test_print[i]; | |
826 | int n; | |
827 | ||
828 | n = bitmap_print_bitmask_to_buf(print_buf, t->bitmap, t->nbits, | |
829 | 0, 2 * PAGE_SIZE); | |
830 | expect_eq_uint(strlen(t->mask) + 1, n); | |
831 | expect_eq_str(t->mask, print_buf, n); | |
832 | ||
833 | n = bitmap_print_list_to_buf(print_buf, t->bitmap, t->nbits, | |
834 | 0, 2 * PAGE_SIZE); | |
835 | expect_eq_uint(strlen(t->list) + 1, n); | |
836 | expect_eq_str(t->list, print_buf, n); | |
837 | ||
838 | /* test by non-zero offset */ | |
839 | if (strlen(t->list) > PAGE_SIZE) { | |
840 | n = bitmap_print_list_to_buf(print_buf, t->bitmap, t->nbits, | |
841 | PAGE_SIZE, PAGE_SIZE); | |
842 | expect_eq_uint(strlen(t->list) + 1 - PAGE_SIZE, n); | |
843 | expect_eq_str(t->list + PAGE_SIZE, print_buf, n); | |
844 | } | |
845 | } | |
846 | } | |
847 | ||
6b1a4d5b | 848 | static void __init selftest(void) |
5fd003f5 | 849 | { |
ee3527bd | 850 | test_zero_clear(); |
978f369c | 851 | test_fill_set(); |
fe81814c | 852 | test_copy(); |
30544ed5 | 853 | test_replace(); |
3aa56885 | 854 | test_bitmap_arr32(); |
7eb2e94e | 855 | test_bitmap_parse(); |
6df0d464 | 856 | test_bitmap_parselist(); |
db731300 | 857 | test_bitmap_printlist(); |
3cc78125 | 858 | test_mem_optimisations(); |
e4aa168d | 859 | test_for_each_set_clump8(); |
bcb32a1d | 860 | test_bitmap_cut(); |
291f93ca | 861 | test_bitmap_print_buf(); |
5fd003f5 DD |
862 | } |
863 | ||
6b1a4d5b | 864 | KSTM_MODULE_LOADERS(test_bitmap); |
5fd003f5 DD |
865 | MODULE_AUTHOR("david decotigny <david.decotigny@googlers.com>"); |
866 | MODULE_LICENSE("GPL"); |