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SubjectRe: [PATCH] x86/tsc: Unset TSC_KNOWN_FREQ and TSC_RELIABLE flags on Intel Bay Trail SoC
On Wed, Dec 18, 2019 at 09:00:39PM +0530, Vipul Kumar wrote:
> From: Vipul Kumar <vipul_kumar@mentor.com>
>
> 'commit f3a02ecebed7 ("x86/tsc: Set TSC_KNOWN_FREQ and TSC_RELIABLE
> flags on Intel Atom SoCs")', causing time drift for Bay trail SoC.
> These flags are set for SoCs having cpuid_level 0x15 or more.
> Bay trail is having cpuid_level 0xb.
>
> So, unset both flags to make sure the clocksource calibration can
> be done.
>
> Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
> ---
> arch/x86/kernel/tsc_msr.c | 3 +++
> 1 file changed, 3 insertions(+)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>

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