[PATCH 1/5] drm/msm/a6xx: Fix gpucc register block for A621

[Akhil P Oommen]

On 2/13/2025 10:06 PM, Konrad Dybcio wrote:
> On 13.02.2025 5:10 PM, Akhil P Oommen wrote:
>> From: Jie Zhang <quic_jiezh at quicinc.com>
>>
>> Adreno 621 has a different memory map for GPUCC block. So update
>> a6xx_gpu_state code to dump the correct set of gpucc registers.
>>
>> Signed-off-by: Jie Zhang <quic_jiezh at quicinc.com>
>> Signed-off-by: Akhil P Oommen <quic_akhilpo at quicinc.com>
>> ---
> 
> So GPU_CC is outside what we consider GPU register region upstream..
> 
> And I've heard voices (+Caleb) lately that we should get some clock register
> dumping infrastructure..
> 
> So while I'm not against this patch fixing a bug, perhaps we can get rid of
> dumping GPU_CC here in the near future

In A623's case, there are kernel panics due to invalid register access
here. So this register range need to be skipped or patched up. We chose
the later.

-Akhil.

> 
> Konrad