Re: [RESEND PATCH] arm64: arch_timer: Workaround for Cortex-A73 erratum 858921
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2017-08-30 06:03:49
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2017-08-30 06:03:49
On Wed, Aug 30, 2017 at 01:06:09PM +0800, Leo Yan wrote:
commit fa8d815fac96e7c9247783d5a1f8fa4685b3c543 upstream. 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. Signed-off-by: Marc Zyngier <redacted> Signed-off-by: Leo Yan <redacted> --- arch/arm64/Kconfig | 12 ++++++++++++ arch/arm64/include/asm/arch_timer.h | 11 +++++++++++ 2 files changed, 23 insertions(+)
Why [RESEND] ? And what stable kernel tree(s) do you want this to be applied to? thanks, greg k-h