perf/tests/mem2node.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 #include <linux/compiler.h>
0003 #include <linux/bitmap.h>
0004 #include <linux/kernel.h>
0005 #include <linux/zalloc.h>
0006 #include <perf/cpumap.h>
0007 #include <internal/cpumap.h>
0008 #include "debug.h"
0009 #include "env.h"
0010 #include "mem2node.h"
0011 #include "tests.h"
0012
0013 static struct node {
0014     int      node;
0015     const char  *map;
0016 } test_nodes[] = {
0017     { .node = 0, .map = "0"     },
0018     { .node = 1, .map = "1-2"   },
0019     { .node = 3, .map = "5-7,9" },
0020 };
0021
0022 #define T TEST_ASSERT_VAL
0023
0024 static unsigned long *get_bitmap(const char *str, int nbits)
0025 {
0026     struct perf_cpu_map *map = perf_cpu_map__new(str);
0027     unsigned long *bm = NULL;
0028
0029     bm = bitmap_zalloc(nbits);
0030
0031     if (map && bm) {
0032         struct perf_cpu cpu;
0033         int i;
0034
0035         perf_cpu_map__for_each_cpu(cpu, i, map)
0036             set_bit(cpu.cpu, bm);
0037     }
0038
0039     if (map)
0040         perf_cpu_map__put(map);
0041     else
0042         free(bm);
0043
0044     return bm && map ? bm : NULL;
0045 }
0046
0047 static int test__mem2node(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
0048 {
0049     struct mem2node map;
0050     struct memory_node nodes[3];
0051     struct perf_env env = {
0052         .memory_nodes    = (struct memory_node *) &nodes[0],
0053         .nr_memory_nodes = ARRAY_SIZE(nodes),
0054         .memory_bsize    = 0x100,
0055     };
0056     unsigned int i;
0057
0058     for (i = 0; i < ARRAY_SIZE(nodes); i++) {
0059         nodes[i].node = test_nodes[i].node;
0060         nodes[i].size = 10;
0061
0062         T("failed: alloc bitmap",
0063           (nodes[i].set = get_bitmap(test_nodes[i].map, 10)));
0064     }
0065
0066     T("failed: mem2node__init", !mem2node__init(&map, &env));
0067     T("failed: mem2node__node",  0 == mem2node__node(&map,   0x50));
0068     T("failed: mem2node__node",  1 == mem2node__node(&map,  0x100));
0069     T("failed: mem2node__node",  1 == mem2node__node(&map,  0x250));
0070     T("failed: mem2node__node",  3 == mem2node__node(&map,  0x500));
0071     T("failed: mem2node__node",  3 == mem2node__node(&map,  0x650));
0072     T("failed: mem2node__node", -1 == mem2node__node(&map,  0x450));
0073     T("failed: mem2node__node", -1 == mem2node__node(&map, 0x1050));
0074
0075     for (i = 0; i < ARRAY_SIZE(nodes); i++)
0076         zfree(&nodes[i].set);
0077
0078     mem2node__exit(&map);
0079     return 0;
0080 }
0081
0082 DEFINE_SUITE("mem2node", mem2node);