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| author | Marc Zyngier <maz@kernel.org> | 2022-11-13 16:38:29 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-11-19 12:56:39 +0000 |
| commit | 11af4c37165e36a6090172ded5d06acdf15206da (patch) | |
| tree | 163f233bfeb741f0661e30810cadbcf27f467767 /tools/perf/scripts/python/syscall-counts.py | |
| parent | d82e0dfdfda73f91e7282e1083a2cd7cd366ea87 (diff) | |
KVM: arm64: PMU: Implement PMUv3p5 long counter support
PMUv3p5 (which is mandatory with ARMv8.5) comes with some extra
features:
- All counters are 64bit
- The overflow point is controlled by the PMCR_EL0.LP bit
Add the required checks in the helpers that control counter
width and overflow, as well as the sysreg handling for the LP
bit. A new kvm_pmu_is_3p5() helper makes it easy to spot the
PMUv3p5 specific handling.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221113163832.3154370-14-maz@kernel.org
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions