Re: [PATCH 7/7] iommu: dart: Add t8110 DART support

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Hi,

On Thu, Jan 5, 2023, at 06:19, Hector Martin wrote:
> On 2023/01/04 22:50, Sven Peter wrote:
>> Do you have any more details on this registers? For the 8103 DART
>> we called it _CONFIG but I assume for the t8110 DART it can
>> actually lock different parts of the HW instead of just a global lock?
>
> This is based on R's reverse engineering here:
>
> https://github.com/AsahiLinux/m1n1/blob/main/proxyclient/m1n1/hw/dart8110.py#L87
>
> I don't think they ever fully nailed down exactly what the lock bit
> behavior is, though.

Fair enough, I was mostly curious if it was actually _PROTECT and not just
_CONFIG with different bit assignments. Sounds like it does mostly set up
protections though.


Sven



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