1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/compiler.h> 3 #include <linux/bitmap.h> 4 #include <linux/kernel.h> 5 #include <linux/zalloc.h> 6 #include <perf/cpumap.h> 7 #include <internal/cpumap.h> 8 #include "debug.h" 9 #include "env.h" 10 #include "mem2node.h" 11 #include "tests.h" 12 13 static struct node { 14 int node; 15 const char *map; 16 } test_nodes[] = { 17 { .node = 0, .map = "0" }, 18 { .node = 1, .map = "1-2" }, 19 { .node = 3, .map = "5-7,9" }, 20 }; 21 22 #define T TEST_ASSERT_VAL 23 24 static unsigned long *get_bitmap(const char *str, int nbits) 25 { 26 struct perf_cpu_map *map = perf_cpu_map__new(str); 27 unsigned long *bm = NULL; 28 int i; 29 30 bm = bitmap_zalloc(nbits); 31 32 if (map && bm) { 33 for (i = 0; i < map->nr; i++) { 34 set_bit(map->map[i], bm); 35 } 36 } 37 38 if (map) 39 perf_cpu_map__put(map); 40 else 41 free(bm); 42 43 return bm && map ? bm : NULL; 44 } 45 46 int test__mem2node(struct test *t __maybe_unused, int subtest __maybe_unused) 47 { 48 struct mem2node map; 49 struct memory_node nodes[3]; 50 struct perf_env env = { 51 .memory_nodes = (struct memory_node *) &nodes[0], 52 .nr_memory_nodes = ARRAY_SIZE(nodes), 53 .memory_bsize = 0x100, 54 }; 55 unsigned int i; 56 57 for (i = 0; i < ARRAY_SIZE(nodes); i++) { 58 nodes[i].node = test_nodes[i].node; 59 nodes[i].size = 10; 60 61 T("failed: alloc bitmap", 62 (nodes[i].set = get_bitmap(test_nodes[i].map, 10))); 63 } 64 65 T("failed: mem2node__init", !mem2node__init(&map, &env)); 66 T("failed: mem2node__node", 0 == mem2node__node(&map, 0x50)); 67 T("failed: mem2node__node", 1 == mem2node__node(&map, 0x100)); 68 T("failed: mem2node__node", 1 == mem2node__node(&map, 0x250)); 69 T("failed: mem2node__node", 3 == mem2node__node(&map, 0x500)); 70 T("failed: mem2node__node", 3 == mem2node__node(&map, 0x650)); 71 T("failed: mem2node__node", -1 == mem2node__node(&map, 0x450)); 72 T("failed: mem2node__node", -1 == mem2node__node(&map, 0x1050)); 73 74 for (i = 0; i < ARRAY_SIZE(nodes); i++) 75 zfree(&nodes[i].set); 76 77 mem2node__exit(&map); 78 return 0; 79 } 80