Hi, Chris
Let’s put you to the correct Mailing list for this topic first
Thanks
--Shuang
From: Chris Healy [mailto:cphe...@gmail.com]
Sent: Wednesday, June 18, 2014 1:15 AM
To: Eric Anholt; He, Shuang
Subject: intel_gpu_top missing clocks
Eric, Shuang,
I couldn't find an appropriate mailing list to report this on, so I'm mailing
the two of you as you've both touched the clock code in intel_gpu_top.
I'm running an Ivy Bridge Mobile chipset and trying to use intel_gpu_top and
intel_stepping to see the GPU clock frequencies. In both cases, the clocks are
"unknown".
When I look at the code, it seems that there's just no code path to handle this
devid, though I'm not sure as I'm not very good at understanding code. I see
in intel_chipset.h that device id 0x0166 = PCI_CHIP_IVYBRIDGE_M_GT2 and that
none of the "if's" in print_clock_info ultimately point to this device type.
Do either of you know why this would be? Is it just a case of coding for the
majority of chipset configurations?
If it's just the case of it not yet being handled, I'd be open to trying to add
support for it if you could point me to the necessary chip documentation.
Regards,
Chris
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