Re: [PATCH 0/3] Add x1e Dell Inpsiron 14p

From: Bryan O'Donoghue
Date: Thu Apr 24 2025 - 11:45:59 EST


On 24/04/2025 16:42, Rob Clark wrote:
- Bugs
Occasionally when resuming I get a fencing error with hyperlock and
freedreno, TBH it looks like something in the GPU or SMMU according to
Rob Clark:https://pastebin.com/AWjCyaap
Did you have the same issues on v6.14 or earlier?

The smmu pm usage count underflow is concerning, the smmu pm should be
tied to the GPU device via device_link_add(). I've never seen
something similar, but I'm still on v6.14.

Could you try reverting commit 0a679336dc17 ("iommu/arm-smmu: Set rpm
auto_suspend once during probe")

BR,
-R

6.15-rc1

I've seen this bug exactly twice. NP to revert but not so sure with only a sample set of two, I could say the change fixes.

Anyway, I'll revert and if I see the bug again, we know its not that.

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bod