diff options
| author |   Marc Zyngier <marc.zyngier@arm.com> | 2017-01-27 12:52:31 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2017-04-07 11:22:10 +0100 |
| commit | fa8d815fac96e7c9247783d5a1f8fa4685b3c543 (patch) | |
| tree | 2bf8488d8d20bdcbfba0f69cd30999e96d365c35 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | arm64: arch_timer: Enable CNTVCT_EL0 trap if workaround is enabled (diff) | |
| download | linux-rng-fa8d815fac96e7c9247783d5a1f8fa4685b3c543.tar.xz linux-rng-fa8d815fac96e7c9247783d5a1f8fa4685b3c543.zip | |
arm64: arch_timer: Workaround for Cortex-A73 erratum 858921
Cortex-A73 (all versions) counter read can return a wrong value
when the counter crosses a 32bit boundary.
The workaround involves performing the read twice, and to return
one or the other depending on whether a transition has taken place.
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions