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 "ebb.h" 10 11 12 /* 13 * Test various attributes of the EBB event are enforced. 14 */ 15 int event_attributes(void) 16 { 17 struct event event, leader; 18 19 SKIP_IF(!ebb_is_supported()); 20 21 event_init(&event, 0x1001e); 22 event_leader_ebb_init(&event); 23 /* Expected to succeed */ 24 FAIL_IF(event_open(&event)); 25 event_close(&event); 26 27 28 event_init(&event, 0x001e); /* CYCLES - no PMC specified */ 29 event_leader_ebb_init(&event); 30 /* Expected to fail, no PMC specified */ 31 FAIL_IF(event_open(&event) == 0); 32 33 34 event_init(&event, 0x2001e); 35 event_leader_ebb_init(&event); 36 event.attr.exclusive = 0; 37 /* Expected to fail, not exclusive */ 38 FAIL_IF(event_open(&event) == 0); 39 40 41 event_init(&event, 0x3001e); 42 event_leader_ebb_init(&event); 43 event.attr.freq = 1; 44 /* Expected to fail, sets freq */ 45 FAIL_IF(event_open(&event) == 0); 46 47 48 event_init(&event, 0x4001e); 49 event_leader_ebb_init(&event); 50 event.attr.sample_period = 1; 51 /* Expected to fail, sets sample_period */ 52 FAIL_IF(event_open(&event) == 0); 53 54 55 event_init(&event, 0x1001e); 56 event_leader_ebb_init(&event); 57 event.attr.enable_on_exec = 1; 58 /* Expected to fail, sets enable_on_exec */ 59 FAIL_IF(event_open(&event) == 0); 60 61 62 event_init(&event, 0x1001e); 63 event_leader_ebb_init(&event); 64 event.attr.inherit = 1; 65 /* Expected to fail, sets inherit */ 66 FAIL_IF(event_open(&event) == 0); 67 68 69 event_init(&leader, 0x1001e); 70 event_leader_ebb_init(&leader); 71 FAIL_IF(event_open(&leader)); 72 73 event_init(&event, 0x20002); 74 event_ebb_init(&event); 75 76 /* Expected to succeed */ 77 FAIL_IF(event_open_with_group(&event, leader.fd)); 78 event_close(&leader); 79 event_close(&event); 80 81 82 event_init(&leader, 0x1001e); 83 event_leader_ebb_init(&leader); 84 FAIL_IF(event_open(&leader)); 85 86 event_init(&event, 0x20002); 87 88 /* Expected to fail, event doesn't request EBB, leader does */ 89 FAIL_IF(event_open_with_group(&event, leader.fd) == 0); 90 event_close(&leader); 91 92 93 event_init(&leader, 0x1001e); 94 event_leader_ebb_init(&leader); 95 /* Clear the EBB flag */ 96 leader.attr.config &= ~(1ull << 63); 97 98 FAIL_IF(event_open(&leader)); 99 100 event_init(&event, 0x20002); 101 event_ebb_init(&event); 102 103 /* Expected to fail, leader doesn't request EBB */ 104 FAIL_IF(event_open_with_group(&event, leader.fd) == 0); 105 event_close(&leader); 106 107 108 event_init(&leader, 0x1001e); 109 event_leader_ebb_init(&leader); 110 leader.attr.exclusive = 0; 111 /* Expected to fail, leader isn't exclusive */ 112 FAIL_IF(event_open(&leader) == 0); 113 114 115 event_init(&leader, 0x1001e); 116 event_leader_ebb_init(&leader); 117 leader.attr.pinned = 0; 118 /* Expected to fail, leader isn't pinned */ 119 FAIL_IF(event_open(&leader) == 0); 120 121 event_init(&event, 0x1001e); 122 event_leader_ebb_init(&event); 123 /* Expected to fail, not a task event */ 124 SKIP_IF(require_paranoia_below(1)); 125 FAIL_IF(event_open_with_cpu(&event, 0) == 0); 126 127 return 0; 128 } 129 130 int main(void) 131 { 132 return test_harness(event_attributes, "event_attributes"); 133 } 134
