[PATCH 1/2] drm/amd/pm/si: Check AMD_IS_MOBILITY flag for PPSMC_SYSTEMFLAG_GPIO_DC

[<contact@mikaelpelle.com>]

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Hi Timur,

 

A quick follow-up from the same MacPro6,1 with dual FirePro D700s.

 

I have now tested the fixes after they reached stock stable kernels:

 

- Linux 6.18.57-1-lts:

  both GPUs correctly transition from 300/150 MHz idle to 850/1370 MHz under Vulkan compute load, then return to 300/150 MHz afterward.

 

- Linux 7.2.10-arch1-1:

  same result; both D700s reach 850/1370 MHz correctly under load.

 

For comparison, Linux 7.2.9, before these stable backports, still kept both GPUs at 300/150 MHz under the same type of compute workload.

 

So I can confirm that the stable backports of:

 

  drm/amd/pm/si: Check AMD_IS_MOBILITY flag for PPSMC_SYSTEMFLAG_GPIO_DC

  drm/amd/pm/si: Fix updating clock limits on AC/DC

 

resolve the DPM issue on the dual FirePro D700 in the MacPro6,1.

 

Thanks for the fixes.

 

Best,

Mikael


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