Re: [PATCH v2 02/17] drm/msm/a8xx: Fix the ticks used in submit traces

[Konrad Dybcio]

On 3/30/26 10:58 PM, Akhil P Oommen wrote:
> On 3/27/2026 5:07 PM, Konrad Dybcio wrote:
>> On 3/27/26 1:13 AM, Akhil P Oommen wrote:
>>> GMU_ALWAYS_ON_COUNTER_* registers got moved in A8x, but currently, A6x
>>> register offsets are used in the submit traces instead of A8x offsets.
>>> To fix this, refactor a bit and use adreno_gpu->funcs->get_timestamp()
>>> everywhere.
>>>
>>> While we are at it, update a8xx_gmu_get_timestamp() to use the GMU AO
>>> counter.
>>
>> Which I assume does not need the GMU to be in any particular state, just
>> have its clocks enabled?
> 
> On A750+, there is a cx timer calibration during gmu resume to match the
> GPU AO counters with the CPU counter. That should be complete before we
> read this.

Worth a comment!

Konrad