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RE: [PATCH 3/5] cpufreq/amd-cppc: move driver data into policy
- To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: "Penny, Zheng" <penny.zheng@xxxxxxx>
- Date: Mon, 26 Jan 2026 07:16:12 +0000
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Mon, 26 Jan 2026 07:16:27 +0000
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- Thread-topic: [PATCH 3/5] cpufreq/amd-cppc: move driver data into policy
[Public]
> -----Original Message-----
> From: Jan Beulich <jbeulich@xxxxxxxx>
> Sent: Thursday, January 22, 2026 5:43 PM
> To: xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>; Roger Pau Monné
> <roger.pau@xxxxxxxxxx>; Penny, Zheng <penny.zheng@xxxxxxx>
> Subject: [PATCH 3/5] cpufreq/amd-cppc: move driver data into policy
>
> Share space with the ACPI, powernow, and HWP drivers, avoiding a separate
> allocation for each CPU.
>
> This then also reduces the concern over amd_cppc_cpufreq_cpu_init() being
> called
> for all CPUs, or a CPU going offline that's recorded in policy->cpu (which
> would
> result in accesses of per-CPU data of offline CPUs).
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Reviewed-by: Penny Zheng <penny.zheng@xxxxxxx>
Many thanks,
Penny Zheng
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