LXR linux/tools/testing/selftests/powerpc/pmu/l3_bank

   1/*
   2 * Copyright 2014, Michael Ellerman, IBM Corp.
   3 * Licensed under GPLv2.
   4 */
   5
   6#include <stdio.h>
   7#include <stdlib.h>
   8
   9#include "event.h"
  10#include "utils.h"
  11
  12#define MALLOC_SIZE     (0x10000 * 10)  /* Ought to be enough .. */
  13
  14/*
  15 * Tests that the L3 bank handling is correct. We fixed it in commit e9aaac1.
  16 */
  17static int l3_bank_test(void)
  18{
  19        struct event event;
  20        char *p;
  21        int i;
  22
  23        p = malloc(MALLOC_SIZE);
  24        FAIL_IF(!p);
  25
  26        event_init(&event, 0x84918F);
  27
  28        FAIL_IF(event_open(&event));
  29
  30        for (i = 0; i < MALLOC_SIZE; i += 0x10000)
  31                p[i] = i;
  32
  33        event_read(&event);
  34        event_report(&event);
  35
  36        FAIL_IF(event.result.running == 0);
  37        FAIL_IF(event.result.enabled == 0);
  38
  39        event_close(&event);
  40        free(p);
  41
  42        return 0;
  43}
  44
  45int main(void)
  46{
  47        return test_harness(l3_bank_test, "l3_bank_test");
  48}
  49