1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright 2022, Athira Rajeev, IBM Corp.
4 */
5
6 #include <stdio.h>
7 #include <sys/prctl.h>
8 #include <limits.h>
9 #include "../event.h"
10 #include "../sampling_tests/misc.h"
11
12 #define PM_DTLB_MISS_16G 0x1c058
13 #define PM_DERAT_MISS_2M 0x1c05a
14 #define PM_DTLB_MISS_2M 0x1c05c
15 #define PM_MRK_DTLB_MISS_1G 0x1d15c
16 #define PM_DTLB_MISS_4K 0x2c056
17 #define PM_DERAT_MISS_1G 0x2c05a
18 #define PM_MRK_DERAT_MISS_2M 0x2d152
19 #define PM_MRK_DTLB_MISS_4K 0x2d156
20 #define PM_MRK_DTLB_MISS_16G 0x2d15e
21 #define PM_DTLB_MISS_64K 0x3c056
22 #define PM_MRK_DERAT_MISS_1G 0x3d152
23 #define PM_MRK_DTLB_MISS_64K 0x3d156
24 #define PM_DISP_HELD_SYNC_HOLD 0x4003c
25 #define PM_DTLB_MISS_16M 0x4c056
26 #define PM_DTLB_MISS_1G 0x4c05a
27 #define PM_MRK_DTLB_MISS_16M 0x4c15e
28 #define PM_MRK_ST_DONE_L2 0x10134
29 #define PM_RADIX_PWC_L1_HIT 0x1f056
30 #define PM_FLOP_CMPL 0x100f4
31 #define PM_MRK_NTF_FIN 0x20112
32 #define PM_RADIX_PWC_L2_HIT 0x2d024
33 #define PM_IFETCH_THROTTLE 0x3405e
34 #define PM_MRK_L2_TM_ST_ABORT_SISTER 0x3e15c
35 #define PM_RADIX_PWC_L3_HIT 0x3f056
36 #define PM_RUN_CYC_SMT2_MODE 0x3006c
37 #define PM_TM_TX_PASS_RUN_INST 0x4e014
38
39 #define PVR_POWER9_CUMULUS 0x00002000
40
41 int blacklist_events_dd21[] = {
42 PM_MRK_ST_DONE_L2,
43 PM_RADIX_PWC_L1_HIT,
44 PM_FLOP_CMPL,
45 PM_MRK_NTF_FIN,
46 PM_RADIX_PWC_L2_HIT,
47 PM_IFETCH_THROTTLE,
48 PM_MRK_L2_TM_ST_ABORT_SISTER,
49 PM_RADIX_PWC_L3_HIT,
50 PM_RUN_CYC_SMT2_MODE,
51 PM_TM_TX_PASS_RUN_INST,
52 PM_DISP_HELD_SYNC_HOLD,
53 };
54
55 int blacklist_events_dd22[] = {
56 PM_DTLB_MISS_16G,
57 PM_DERAT_MISS_2M,
58 PM_DTLB_MISS_2M,
59 PM_MRK_DTLB_MISS_1G,
60 PM_DTLB_MISS_4K,
61 PM_DERAT_MISS_1G,
62 PM_MRK_DERAT_MISS_2M,
63 PM_MRK_DTLB_MISS_4K,
64 PM_MRK_DTLB_MISS_16G,
65 PM_DTLB_MISS_64K,
66 PM_MRK_DERAT_MISS_1G,
67 PM_MRK_DTLB_MISS_64K,
68 PM_DISP_HELD_SYNC_HOLD,
69 PM_DTLB_MISS_16M,
70 PM_DTLB_MISS_1G,
71 PM_MRK_DTLB_MISS_16M,
72 };
73
74 int pvr_min;
75
76 /*
77 * check for power9 support for 2.1 and
78 * 2.2 model where blacklist is applicable.
79 */
check_for_power9_version(void)80 int check_for_power9_version(void)
81 {
82 pvr_min = PVR_MIN(mfspr(SPRN_PVR));
83
84 SKIP_IF(PVR_VER(pvr) != POWER9);
85 SKIP_IF(!(pvr & PVR_POWER9_CUMULUS));
86
87 SKIP_IF(!(3 - pvr_min));
88
89 return 0;
90 }
91
92 /*
93 * Testcase to ensure that using blacklisted bits in
94 * event code should cause event_open to fail in power9
95 */
96
blacklisted_events(void)97 static int blacklisted_events(void)
98 {
99 struct event event;
100 int i = 0;
101
102 /* Check for platform support for the test */
103 SKIP_IF(platform_check_for_tests());
104
105 /*
106 * check for power9 support for 2.1 and
107 * 2.2 model where blacklist is applicable.
108 */
109 SKIP_IF(check_for_power9_version());
110
111 /* Skip for Generic compat mode */
112 SKIP_IF(check_for_generic_compat_pmu());
113
114 if (pvr_min == 1) {
115 for (i = 0; i < ARRAY_SIZE(blacklist_events_dd21); i++) {
116 event_init(&event, blacklist_events_dd21[i]);
117 FAIL_IF(!event_open(&event));
118 }
119 } else if (pvr_min == 2) {
120 for (i = 0; i < ARRAY_SIZE(blacklist_events_dd22); i++) {
121 event_init(&event, blacklist_events_dd22[i]);
122 FAIL_IF(!event_open(&event));
123 }
124 }
125
126 return 0;
127 }
128
main(void)129 int main(void)
130 {
131 return test_harness(blacklisted_events, "blacklisted_events");
132 }
133