1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright 2014, Michael Ellerman, IBM Corp.
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 */
17 static int l3_bank_test(void)
18 {
19 struct event event;
20 char *p;
21 int i;
22
23 // The L3 bank logic is only used on Power8 or later
24 SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
25
26 p = malloc(MALLOC_SIZE);
27 FAIL_IF(!p);
28
29 event_init(&event, 0x84918F);
30
31 FAIL_IF(event_open(&event));
32
33 for (i = 0; i < MALLOC_SIZE; i += 0x10000)
34 p[i] = i;
35
36 event_read(&event);
37 event_report(&event);
38
39 FAIL_IF(event.result.running == 0);
40 FAIL_IF(event.result.enabled == 0);
41
42 event_close(&event);
43 free(p);
44
45 return 0;
46 }
47
48 int main(void)
49 {
50 return test_harness(l3_bank_test, "l3_bank_test");
51 }
52
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