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-rw-r--r--tools/perf/tests/mem2node.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/tools/perf/tests/mem2node.c b/tools/perf/tests/mem2node.c
new file mode 100644
index 000000000..a258bd51f
--- /dev/null
+++ b/tools/perf/tests/mem2node.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+#include <linux/bitmap.h>
+#include <linux/kernel.h>
+#include <linux/zalloc.h>
+#include <perf/cpumap.h>
+#include <internal/cpumap.h>
+#include "debug.h"
+#include "env.h"
+#include "mem2node.h"
+#include "tests.h"
+
+static struct node {
+ int node;
+ const char *map;
+} test_nodes[] = {
+ { .node = 0, .map = "0" },
+ { .node = 1, .map = "1-2" },
+ { .node = 3, .map = "5-7,9" },
+};
+
+#define T TEST_ASSERT_VAL
+
+static unsigned long *get_bitmap(const char *str, int nbits)
+{
+ struct perf_cpu_map *map = perf_cpu_map__new(str);
+ unsigned long *bm = NULL;
+ int i;
+
+ bm = bitmap_alloc(nbits);
+
+ if (map && bm) {
+ for (i = 0; i < map->nr; i++) {
+ set_bit(map->map[i], bm);
+ }
+ }
+
+ if (map)
+ perf_cpu_map__put(map);
+ else
+ free(bm);
+
+ return bm && map ? bm : NULL;
+}
+
+int test__mem2node(struct test *t __maybe_unused, int subtest __maybe_unused)
+{
+ struct mem2node map;
+ struct memory_node nodes[3];
+ struct perf_env env = {
+ .memory_nodes = (struct memory_node *) &nodes[0],
+ .nr_memory_nodes = ARRAY_SIZE(nodes),
+ .memory_bsize = 0x100,
+ };
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(nodes); i++) {
+ nodes[i].node = test_nodes[i].node;
+ nodes[i].size = 10;
+
+ T("failed: alloc bitmap",
+ (nodes[i].set = get_bitmap(test_nodes[i].map, 10)));
+ }
+
+ T("failed: mem2node__init", !mem2node__init(&map, &env));
+ T("failed: mem2node__node", 0 == mem2node__node(&map, 0x50));
+ T("failed: mem2node__node", 1 == mem2node__node(&map, 0x100));
+ T("failed: mem2node__node", 1 == mem2node__node(&map, 0x250));
+ T("failed: mem2node__node", 3 == mem2node__node(&map, 0x500));
+ T("failed: mem2node__node", 3 == mem2node__node(&map, 0x650));
+ T("failed: mem2node__node", -1 == mem2node__node(&map, 0x450));
+ T("failed: mem2node__node", -1 == mem2node__node(&map, 0x1050));
+
+ for (i = 0; i < ARRAY_SIZE(nodes); i++)
+ zfree(&nodes[i].set);
+
+ mem2node__exit(&map);
+ return 0;
+}