2 * Copyright 2014, Michael Ellerman, IBM Corp.
3 * Licensed under GPLv2.
14 * Test counting multiple events using EBBs.
16 int multi_counter(void)
18 struct event events
[6];
21 event_init_named(&events
[0], 0x1001C, "PM_CMPLU_STALL_THRD");
22 event_init_named(&events
[1], 0x2D016, "PM_CMPLU_STALL_FXU");
23 event_init_named(&events
[2], 0x30006, "PM_CMPLU_STALL_OTHER_CMPL");
24 event_init_named(&events
[3], 0x4000A, "PM_CMPLU_STALL");
25 event_init_named(&events
[4], 0x600f4, "PM_RUN_CYC");
26 event_init_named(&events
[5], 0x500fa, "PM_RUN_INST_CMPL");
28 event_leader_ebb_init(&events
[0]);
29 for (i
= 1; i
< 6; i
++)
30 event_ebb_init(&events
[i
]);
33 for (i
= 0; i
< 6; i
++) {
34 events
[i
].attr
.exclude_kernel
= 1;
35 events
[i
].attr
.exclude_hv
= 1;
36 events
[i
].attr
.exclude_idle
= 1;
38 FAIL_IF(event_open_with_group(&events
[i
], group_fd
));
40 group_fd
= events
[0].fd
;
43 ebb_enable_pmc_counting(1);
44 ebb_enable_pmc_counting(2);
45 ebb_enable_pmc_counting(3);
46 ebb_enable_pmc_counting(4);
47 ebb_enable_pmc_counting(5);
48 ebb_enable_pmc_counting(6);
49 setup_ebb_handler(standard_ebb_callee
);
51 FAIL_IF(ioctl(events
[0].fd
, PERF_EVENT_IOC_ENABLE
, PERF_IOC_FLAG_GROUP
));
52 FAIL_IF(event_read(&events
[0]));
56 mtspr(SPRN_PMC1
, pmc_sample_period(sample_period
));
57 mtspr(SPRN_PMC2
, pmc_sample_period(sample_period
));
58 mtspr(SPRN_PMC3
, pmc_sample_period(sample_period
));
59 mtspr(SPRN_PMC4
, pmc_sample_period(sample_period
));
60 mtspr(SPRN_PMC5
, pmc_sample_period(sample_period
));
61 mtspr(SPRN_PMC6
, pmc_sample_period(sample_period
));
63 while (ebb_state
.stats
.ebb_count
< 50) {
64 FAIL_IF(core_busy_loop());
65 FAIL_IF(ebb_check_mmcr0());
71 count_pmc(1, sample_period
);
72 count_pmc(2, sample_period
);
73 count_pmc(3, sample_period
);
74 count_pmc(4, sample_period
);
75 count_pmc(5, sample_period
);
76 count_pmc(6, sample_period
);
80 for (i
= 0; i
< 6; i
++)
81 event_close(&events
[i
]);
83 FAIL_IF(ebb_state
.stats
.ebb_count
== 0);
90 return test_harness(multi_counter
, "multi_counter");
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