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| author | Peter Zijlstra <peterz@infradead.org> | 2020-09-15 12:32:01 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-09-16 19:36:26 +0200 |
| commit | 1fecfdbb7acc6624655450a609221c89b5197a06 (patch) | |
| tree | 40939e03a67f54ccf191cf25e924ecf7a0da4d27 /scripts/bpf_helpers_doc.py | |
| parent | 8747f2022fe8d8029193707ee86ff5c792cbef9b (diff) | |
ACPI: processor: Take over RCU-idle for C3-BM idle
The C3 BusMaster idle code takes lock in a number of places, some deep
inside the ACPI code. Instead of wrapping it all in RCU_NONIDLE, have
the driver take over RCU-idle duty and avoid flipping RCU state back
and forth a lot.
( by marking 'C3 && bm_check' as RCU_IDLE, we _must_ call enter_bm() for
that combination, otherwise we'll loose RCU-idle, this requires
shuffling some code around )
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'scripts/bpf_helpers_doc.py')
0 files changed, 0 insertions, 0 deletions