mem2node.c

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#include <linux/compiler.h>
#include <linux/bitmap.h>
#include "cpumap.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 cpu_map *map = cpu_map__new(str);
    unsigned long *bm = NULL;
    int i;

    bm = bitmap_alloc(nbits);

    if (map && bm) {
        bitmap_zero(bm, nbits);

        for (i = 0; i < map->nr; i++) {
            set_bit(map->map[i], bm);
        }
    }

    if (map)
        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++)
        free(nodes[i].set);

    mem2node__exit(&map);
    return 0;
}