event_alternatives_tests_p9.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Copyright 2022, Athira Rajeev, IBM Corp.
  4 */
  5
  6#include <stdio.h>
  7#include "../event.h"
  8#include "../sampling_tests/misc.h"
  9
 10#define PM_RUN_CYC_ALT 0x200f4
 11#define PM_INST_DISP 0x200f2
 12#define PM_BR_2PATH 0x20036
 13#define PM_LD_MISS_L1 0x3e054
 14#define PM_RUN_INST_CMPL_ALT 0x400fa
 15
 16#define EventCode_1 0x200fa
 17#define EventCode_2 0x200fc
 18#define EventCode_3 0x300fc
 19#define EventCode_4 0x400fc
 20
 21/*
 22 * Check for event alternatives.
 23 */
 24
 25static int event_alternatives_tests_p9(void)
 26{
 27	struct event event, leader;
 28
 29	/* Check for platform support for the test */
 30	SKIP_IF(platform_check_for_tests());
 31
 32	/*
 33	 * PVR check is used here since PMU specific data like
 34	 * alternative events is handled by respective PMU driver
 35	 * code and using PVR will work correctly for all cases
 36	 * including generic compat mode.
 37	 */
 38	SKIP_IF(PVR_VER(mfspr(SPRN_PVR)) != POWER9);
 39
 40	/* Skip for generic compat PMU */
 41	SKIP_IF(check_for_generic_compat_pmu());
 42
 43	/* Init the event for PM_RUN_CYC_ALT */
 44	event_init(&leader, PM_RUN_CYC_ALT);
 45	FAIL_IF(event_open(&leader));
 46
 47	event_init(&event, EventCode_1);
 48
 49	/*
 50	 * Expected to pass since PM_RUN_CYC_ALT in PMC2 has alternative event
 51	 * 0x600f4. So it can go in with EventCode_1 which is using PMC2
 52	 */
 53	FAIL_IF(event_open_with_group(&event, leader.fd));
 54
 55	event_close(&leader);
 56	event_close(&event);
 57
 58	event_init(&leader, PM_INST_DISP);
 59	FAIL_IF(event_open(&leader));
 60
 61	event_init(&event, EventCode_2);
 62	/*
 63	 * Expected to pass since PM_INST_DISP in PMC2 has alternative event
 64	 * 0x300f2 in PMC3. So it can go in with EventCode_2 which is using PMC2
 65	 */
 66	FAIL_IF(event_open_with_group(&event, leader.fd));
 67
 68	event_close(&leader);
 69	event_close(&event);
 70
 71	event_init(&leader, PM_BR_2PATH);
 72	FAIL_IF(event_open(&leader));
 73
 74	event_init(&event, EventCode_2);
 75	/*
 76	 * Expected to pass since PM_BR_2PATH in PMC2 has alternative event
 77	 * 0x40036 in PMC4. So it can go in with EventCode_2 which is using PMC2
 78	 */
 79	FAIL_IF(event_open_with_group(&event, leader.fd));
 80
 81	event_close(&leader);
 82	event_close(&event);
 83
 84	event_init(&leader, PM_LD_MISS_L1);
 85	FAIL_IF(event_open(&leader));
 86
 87	event_init(&event, EventCode_3);
 88	/*
 89	 * Expected to pass since PM_LD_MISS_L1 in PMC3 has alternative event
 90	 * 0x400f0 in PMC4. So it can go in with EventCode_3 which is using PMC3
 91	 */
 92	FAIL_IF(event_open_with_group(&event, leader.fd));
 93
 94	event_close(&leader);
 95	event_close(&event);
 96
 97	event_init(&leader, PM_RUN_INST_CMPL_ALT);
 98	FAIL_IF(event_open(&leader));
 99
100	event_init(&event, EventCode_4);
101	/*
102	 * Expected to pass since PM_RUN_INST_CMPL_ALT in PMC4 has alternative event
103	 * 0x500fa in PMC5. So it can go in with EventCode_4 which is using PMC4
104	 */
105	FAIL_IF(event_open_with_group(&event, leader.fd));
106
107	event_close(&leader);
108	event_close(&event);
109
110	return 0;
111}
112
113int main(void)
114{
115	return test_harness(event_alternatives_tests_p9, "event_alternatives_tests_p9");
116}