Re: [PATCH DNM v3 8/8] arm64: dts: qcom: kaanapali: Add MPAM MSC nodes for the L2 caches

[Konrad Dybcio]

On 10/14/26 9:09 AM, Yin Li wrote:
> 
> 
> On 10/13/2026 6:37 PM, Ben Horgan wrote:
>> Hi Yin,

[...]

> Hi Ben, Konrad,
> 
> The original 0x10000 reflects the per-MSC register block size as
> allocated in the KNP hardware — as Konrad noted, Qualcomm DTs tend to
> use "how much register space is allocated for this block" rather than
> "what the last used register ends" to avoid holes.
> 
> We'd like to update it to 0x321c to give other platform authors a more useful reference, without exposing KNP-internal details such as address holes between blocks. In our case, we don't implement MPAMCFG_MBW_PBM, and — as you noted — the registers from 0x3000 onward are domain-specific; since we have no domains, those aren't used either. So the actual footprint we need is smaller than 0x321c, but showing the full 0x321c gives other authors a complete picture of the allocated register space.
> 
> That said, this patch is marked DNM and is intended as a local
> verification example only, not for merging.

If you don't intend it to get merged, you can even put 0x12345
in there. But for future submissions that will have the intent to
be merged, please stick to the 0x10000 size

Konrad