[PATCH 1/2] drm/amd/pm: enable baco reset for Hawaii

Sandeep sandy.8925 at gmail.com
Wed Oct 28 14:10:26 UTC 2020


On Wed, 28 Oct 2020 at 07:01, Quan, Evan <Evan.Quan at amd.com> wrote:
>
> [AMD Official Use Only - Internal Distribution Only]
>
> Hi Sandeep,
>
> Did you run the tests on Hawaii?
> And can you help to confirm which method is used for gpu reset? "BACO reset" or " PCI CONFIG reset" (you can grep these keywords in dmesg)?
>
> BR
> Evan

Yes, I ran the tests on Hawaii. The reset method isn't printed out in
dmesg. Is it only printed out during hibernate? When I run the kernel
with the above patch, the computer hangs when I attempt to hibernate,
and kernel logs don't get written to disk, so I'm unable to  figure
out which method it's using with your patches.

However, I did look at the reset method for earlier kernels, and I
believe it's using the PCI config reset method. I will try your other
patchset to see if it fixes the issue.

- Sandeep


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