[PATCH v2 3/3] perf/smmuv3: Synthesize IIDR from CoreSight ID registers
Robin Murphy
robin.murphy at arm.com
Tue Dec 7 04:48:13 PST 2021
On 2021-12-07 12:28, John Garry via iommu wrote:
> On 07/12/2021 12:04, Robin Murphy wrote:
>>>>
>>> So is there some userspace part to go with this now?
>>
>> FWIW I've not looked into it - is it just a case of someone knocking
>> out some JSON from the MMU-600/700 TRMs, or is there still mroe to do?
>
> That should just be it.
>
>> I had the impression that *some* part of the process was stalled until
>> implementations can start providing meaningful IIDRs, but I wasn't
>> sure whether that was tooling or just data. I just work the low-level
>> enablement angle :)
>
> Tooling should be ok, but I would just like to see more of these JSONs
> so any tooling issues can be ironed out.
Sounds good - Jean, Leo, is that something Linaro might like to pick up
as part of the PMCG interest, or shall I make a note on my to-do list
for the new year?
Thanks,
Robin.
>
> Cheers,
> John
>
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