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| author | Linu Cherian <linu.cherian@arm.com> | 2026-07-23 10:10:30 +0530 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2026-08-06 12:15:30 +0000 |
| commit | a7ac60414475fdd811575e45ffc45e1f59e404b3 (patch) | |
| tree | 52a9acd6b78ee1766ef82f5ac21c8a31517f185e /tools/perf/scripts/python/flamegraph.py | |
| parent | 357230cb5276b0d224327ae2bb372d13f2243320 (diff) | |
arm64: cpufeature: Extend bbml2_noabort support list
Add below cpus to the midr list, which supports
BBML2_NOABORT.
Cortex A520(AE)
Cortex A715
Cortex A720(AE)
Cortex A725
Neoverse N3
C1-Nano
C1-Pro
C1-Ultra
C1-Premium
C1-Ultra and C1-Premium both suffer from erratum 3683289,
where Break-Before-Make must be followed to avoid a livelock.
For both CPUs, the erratum is fixed from r1p1.
Hence we do not enable BBML2_NOABORT for CPU revisions <= r1p0.
The relevant SDENs are:
* C1-Ultra: https://developer.arm.com/documentation/111077/9-00/
* C1-Premium: https://developer.arm.com/documentation/111078/9-00/
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Linu Cherian <linu.cherian@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions