diff options
| author | Nicholas Piggin <[email protected]> | 2017-07-20 11:53:22 +1000 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2017-08-04 12:52:26 +1000 |
| commit | 09539f9b123652e969894d6299ae0df2fe12cb5d (patch) | |
| tree | d48126ca0b6ab5d0a8e692deeaa52fb960bc59a4 /drivers/scsi/mpt3sas/mpi/mpi2_raid.h | |
| parent | f29bb7861a5107cc1afbf5a565c3109aa88d5984 (diff) | |
powerpc/perf: POWER9 PMU stops after idle workaround
POWER9 DD2 PMU can stop after a state-loss idle in some conditions.
A solution is to set then clear MMCRA[60] after wake from state-loss
idle. MMCRA[60] is a non-architected bit, see the user manual for
details.
Signed-off-by: Nicholas Piggin <[email protected]>
Acked-by: Madhavan Srinivasan <[email protected]>
Reviewed-by: Vaidyanathan Srinivasan <[email protected]>
Acked-by: Anton Blanchard <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpi/mpi2_raid.h')
0 files changed, 0 insertions, 0 deletions