1 // SPDX-License-Identifier: GPL-2.0
11 #include "../perf-sys.h"
13 /* hw: cycles, sw: context-switch, uncore: [arch dependent] */
14 static int types[] = {0, 1, -1};
41 	 * initialized with disabled set to 1 and any child events are  in event_open()
42 	 * initialized with disabled set to 0. Despite disabled being 0,  in event_open()
46 	attr.disabled = group_fd == -1 ? 1 : 0;  in event_open()
48 	return sys_perf_event_open(&attr, -1, 0, group_fd, 0);  in event_open()
58 			if (!strcmp(uncore_pmus[i].name, pmu->name)) {  in setup_uncore_event()
59 				pr_debug("Using %s for uncore pmu event\n", pmu->name);  in setup_uncore_event()
60 				types[2] = pmu->type;  in setup_uncore_event()
70 				fd = event_open(types[2], configs[2], -1);  in setup_uncore_event()
72 					return -1;  in setup_uncore_event()
78 	return -1;  in setup_uncore_event()
81 static int run_test(int i, int j, int k)  in run_test()  argument
83 	int erroneous = ((((1 << i) | (1 << j) | (1 << k)) & 5) == 5);  in run_test()
86 	group_fd = event_open(types[i], configs[i], -1);  in run_test()
87 	if (group_fd == -1)  in run_test()
88 		return -1;  in run_test()
90 	sibling_fd1 = event_open(types[j], configs[j], group_fd);  in run_test()
91 	if (sibling_fd1 == -1) {  in run_test()
93 		return erroneous ? 0 : -1;  in run_test()
96 	sibling_fd2 = event_open(types[k], configs[k], group_fd);  in run_test()
97 	if (sibling_fd2 == -1) {  in run_test()
100 		return erroneous ? 0 : -1;  in run_test()
106 	return erroneous ? -1 : 0;  in run_test()
111 	int i, j, k;  in test__event_groups()  local
116 	if (ret || types[2] == -1)  in test__event_groups()
121 		for (j = 0; j < 3; j++) {  in test__event_groups()
122 			for (k = 0; k < 3; k++) {  in test__event_groups()
123 				r = run_test(i, j, k);  in test__event_groups()
128 					 types[i], configs[i], types[j], configs[j],  in test__event_groups()
129 					 types[k], configs[k], r ? "Fail" : "Pass");  in test__event_groups()