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powerpc/perf: Fix branch event code for power9

Forráskód böngészése 
Correct "branch" event code of Power9 is "r4d05e". Replace the current
"branch" event code with "r4d05e" and add a hack to use "r10012" as
event code for Power9 DD1.

Fixes: d89f473ff6 ("powerpc/perf: Fix PM_BRU_CMPL event code for power9")
Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Madhavan Srinivasan
2017-06-25 21:04:46 +05:30
committed by Michael Ellerman
szülő 89d8bb1638
commit 24bedcb7c8
2 fájl változott, egészen pontosan 10 új sor hozzáadva és 2 régi sor törölve
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8
arch/powerpc/perf/power9-pmu.c
Fájl megtekintése

@@ -231,7 +231,7 @@ static int power9_generic_events_dd1[] = {
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = PM_ICT_NOSLOT_CYC,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = PM_CMPLU_STALL,
[PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_DISP,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BRU_CMPL,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BR_CMPL_ALT,
[PERF_COUNT_HW_BRANCH_MISSES] = PM_BR_MPRED_CMPL,
[PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1,
[PERF_COUNT_HW_CACHE_MISSES] = PM_LD_MISS_L1_FIN,
@@ -453,6 +453,12 @@ static int __init init_power9_pmu(void)
* sampling scenarios in power9 DD1, instead use PM_INST_DISP.
*/
EVENT_VAR(PM_INST_CMPL, _g).id = PM_INST_DISP;
/*
* Power9 DD1 should use PM_BR_CMPL_ALT event code for
* "branches" to provide correct counter value.
*/
EVENT_VAR(PM_BRU_CMPL, _g).id = PM_BR_CMPL_ALT;
EVENT_VAR(PM_BRU_CMPL, _c).id = PM_BR_CMPL_ALT;
rc = register_power_pmu(&power9_isa207_pmu);
} else {
rc = register_power_pmu(&power9_pmu);