[PATCH 02/33] drivers: base: cacheinfo: Add helper to find the cache size from cpu+level

James Morse james.morse at arm.com
Wed Aug 27 10:11:38 PDT 2025


Hi Krzysztof,

On 24/08/2025 18:25, Krzysztof Kozlowski wrote:
> On 22/08/2025 17:29, James Morse wrote:
>> MPAM needs to know the size of a cache associated with a particular CPU.
>> The DT/ACPI agnostic way of doing this is to ask cacheinfo.
>>
>> Add a helper to do this.

>> ---
>> Changes since v1:
> 
> You marked this as v1.

Oops - that should say RFC. I'll fix all those.


>>  * Converted to kdoc.
>>  * Simplified helper to use get_cpu_cacheinfo_level().

> Please use consistent subject prefixes. Look at previous patch subject
> prefix.

Presumably the previous patch in my series - this is a side effect of multiple branches
that were written at different times getting combined! I'll change it to 'cacheinfo:' as
that seems to be the most popular recently.


Thanks,

James



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