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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | // SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2014, Michael Ellerman, IBM Corp. */ #include <stdio.h> #include <stdlib.h> #include "ebb.h" /* * Test various attributes of the EBB event are enforced. */ int event_attributes(void) { struct event event, leader; SKIP_IF(!ebb_is_supported()); event_init(&event, 0x1001e); event_leader_ebb_init(&event); /* Expected to succeed */ FAIL_IF(event_open(&event)); event_close(&event); event_init(&event, 0x001e); /* CYCLES - no PMC specified */ event_leader_ebb_init(&event); /* Expected to fail, no PMC specified */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x2001e); event_leader_ebb_init(&event); event.attr.exclusive = 0; /* Expected to fail, not exclusive */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x3001e); event_leader_ebb_init(&event); event.attr.freq = 1; /* Expected to fail, sets freq */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x4001e); event_leader_ebb_init(&event); event.attr.sample_period = 1; /* Expected to fail, sets sample_period */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x1001e); event_leader_ebb_init(&event); event.attr.enable_on_exec = 1; /* Expected to fail, sets enable_on_exec */ FAIL_IF(event_open(&event) == 0); event_init(&event, 0x1001e); event_leader_ebb_init(&event); event.attr.inherit = 1; /* Expected to fail, sets inherit */ FAIL_IF(event_open(&event) == 0); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); FAIL_IF(event_open(&leader)); event_init(&event, 0x20002); event_ebb_init(&event); /* Expected to succeed */ FAIL_IF(event_open_with_group(&event, leader.fd)); event_close(&leader); event_close(&event); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); FAIL_IF(event_open(&leader)); event_init(&event, 0x20002); /* Expected to fail, event doesn't request EBB, leader does */ FAIL_IF(event_open_with_group(&event, leader.fd) == 0); event_close(&leader); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); /* Clear the EBB flag */ leader.attr.config &= ~(1ull << 63); FAIL_IF(event_open(&leader)); event_init(&event, 0x20002); event_ebb_init(&event); /* Expected to fail, leader doesn't request EBB */ FAIL_IF(event_open_with_group(&event, leader.fd) == 0); event_close(&leader); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); leader.attr.exclusive = 0; /* Expected to fail, leader isn't exclusive */ FAIL_IF(event_open(&leader) == 0); event_init(&leader, 0x1001e); event_leader_ebb_init(&leader); leader.attr.pinned = 0; /* Expected to fail, leader isn't pinned */ FAIL_IF(event_open(&leader) == 0); event_init(&event, 0x1001e); event_leader_ebb_init(&event); /* Expected to fail, not a task event */ SKIP_IF(require_paranoia_below(1)); FAIL_IF(event_open_with_cpu(&event, 0) == 0); return 0; } int main(void) { return test_harness(event_attributes, "event_attributes"); } |