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| 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 /arch/arm64/include/asm/arch_timer.h | |
| parent | a86bd139f2ae02f960caeb0c1dd5f871d3e087cd (diff) | |
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 'arch/arm64/include/asm/arch_timer.h')
0 files changed, 0 insertions, 0 deletions