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powerpc/perf: Add blacklisted events for Power9 DD2.2 

These events either do not count, or do not count correctly, so to
prevent user confusion block counting them at all.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[mpe: Change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Madhavan Srinivasan 2018-03-04 17:26:28 +05:30 committed by Michael Ellerman
parent 64acab4e4f
commit ac96588d98
2 changed files with 37 additions and 0 deletions
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15
arch/powerpc/perf/power9-events-list.h
View File

@ -82,3 +82,18 @@ EVENT(PM_RADIX_PWC_L3_HIT, 0x3f056)
EVENT(PM_RUN_CYC_SMT2_MODE, 0x3006c)
EVENT(PM_TM_TX_PASS_RUN_INST, 0x4e014)
EVENT(PM_DISP_HELD_SYNC_HOLD, 0x4003c)
EVENT(PM_DTLB_MISS_16G, 0x1c058)
EVENT(PM_DERAT_MISS_2M, 0x1c05a)
EVENT(PM_DTLB_MISS_2M, 0x1c05c)
EVENT(PM_MRK_DTLB_MISS_1G, 0x1d15c)
EVENT(PM_DTLB_MISS_4K, 0x2c056)
EVENT(PM_DERAT_MISS_1G, 0x2c05a)
EVENT(PM_MRK_DERAT_MISS_2M, 0x2d152)
EVENT(PM_MRK_DTLB_MISS_4K, 0x2d156)
EVENT(PM_MRK_DTLB_MISS_16G, 0x2d15e)
EVENT(PM_DTLB_MISS_64K, 0x3c056)
EVENT(PM_MRK_DERAT_MISS_1G, 0x3d152)
EVENT(PM_MRK_DTLB_MISS_64K, 0x3d156)
EVENT(PM_DTLB_MISS_16M, 0x4c056)
EVENT(PM_DTLB_MISS_1G, 0x4c05a)
EVENT(PM_MRK_DTLB_MISS_16M, 0x4c15e)

22
arch/powerpc/perf/power9-pmu.c
View File

@ -121,6 +121,25 @@ int p9_dd21_bl_ev[] = {
PM_DISP_HELD_SYNC_HOLD,
};
int p9_dd22_bl_ev[] = {
PM_DTLB_MISS_16G,
PM_DERAT_MISS_2M,
PM_DTLB_MISS_2M,
PM_MRK_DTLB_MISS_1G,
PM_DTLB_MISS_4K,
PM_DERAT_MISS_1G,
PM_MRK_DERAT_MISS_2M,
PM_MRK_DTLB_MISS_4K,
PM_MRK_DTLB_MISS_16G,
PM_DTLB_MISS_64K,
PM_MRK_DERAT_MISS_1G,
PM_MRK_DTLB_MISS_64K,
PM_DISP_HELD_SYNC_HOLD,
PM_DTLB_MISS_16M,
PM_DTLB_MISS_1G,
PM_MRK_DTLB_MISS_16M,
};
/* Table of alternatives, sorted by column 0 */
static const unsigned int power9_event_alternatives[][MAX_ALT] = {
{ PM_INST_DISP, PM_INST_DISP_ALT },
@ -475,6 +494,9 @@ static int __init init_power9_pmu(void)
if ((PVR_CFG(pvr) == 2) && (PVR_MIN(pvr) == 1)) {
power9_pmu.blacklist_ev = p9_dd21_bl_ev;
power9_pmu.n_blacklist_ev = ARRAY_SIZE(p9_dd21_bl_ev);
} else if ((PVR_CFG(pvr) == 2) && (PVR_MIN(pvr) == 2)) {
power9_pmu.blacklist_ev = p9_dd22_bl_ev;
power9_pmu.n_blacklist_ev = ARRAY_SIZE(p9_dd22_bl_ev);
}
}