powerpc/perf: Use MSR to report privilege level on P9 DD1

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SIER and SIAR are not updated correctly for some samples, so force the
use of MSR and regs->nip instead for misc_flag updates. This is done by
adding a new ppmu flag and updating the use_siar logic in
perf_read_regs() to use it, and dropping the PPMU_HAS_SIER flag.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[mpe: Rename flag to PPMU_NO_SIAR, and also drop PPMU_HAS_SIER]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Madhavan Srinivasan 2017-01-18 09:12:56 +05:30 • committed by Michael Ellerman

parent df21d2fa73

commit 27593d72c4

3 changed files with 4 additions and 1 deletions

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1

arch/powerpc/include/asm/perf_event_server.h

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2

arch/powerpc/perf/core-book3s.c

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2

arch/powerpc/perf/power9-pmu.c

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