[PATCH] clocksource/drivers/arm_arch_timer: limit XGene-1 workaround
Daniel Lezcano
daniel.lezcano at linaro.org
Tue Oct 24 07:58:44 PDT 2023
On 18/10/2023 12:15, Catalin Marinas wrote:
> On Mon, 16 Oct 2023 16:31:27 +0100, Andre Przywara wrote:
>> The AppliedMicro XGene-1 CPU has an erratum where the timer condition
>> would only consider TVAL, not CVAL. We currently apply a workaround when
>> seeing the PartNum field of MIDR_EL1 being 0x000, under the assumption
>> that this would match only the XGene-1 CPU model.
>> However even the Ampere eMAG (aka XGene-3) uses that same part number, and
>> only differs in the "Variant" and "Revision" fields: XGene-1's MIDR is
>> 0x500f0000, our eMAG reports 0x503f0002. Experiments show the latter
>> doesn't show the faulty behaviour.
>>
>> [...]
>
> Applied to arm64 (for-next/misc), thanks!
Noted, thanks
> [1/1] clocksource/drivers/arm_arch_timer: limit XGene-1 workaround
> https://git.kernel.org/arm64/c/851354cbd12b
>
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