| 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(e: &event, config: 0x84918F); |
| 30 | |
| 31 | FAIL_IF(event_open(e: &event)); |
| 32 | |
| 33 | for (i = 0; i < MALLOC_SIZE; i += 0x10000) |
| 34 | p[i] = i; |
| 35 | |
| 36 | event_read(e: &event); |
| 37 | event_report(e: &event); |
| 38 | |
| 39 | FAIL_IF(event.result.running == 0); |
| 40 | FAIL_IF(event.result.enabled == 0); |
| 41 | |
| 42 | event_close(e: &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 |