[EXTERNAL] [PATCH 2/2] drm/amdkfd: Add PCIe Hotplug Support for AMDKFD

[Andrey Grodzovsky]

The only one in Radeon 7 I see is the same sysfs crash we already fixed 
so you can use the same fix. The MI 200 issue i haven't seen yet but I 
also haven't tested MI200 so never saw it before. Need to test when i 
get the time.

So try that fix with Radeon 7 again to see if you pass the tests (the 
warnings should all be minor issues).

Andrey


On 2022-04-20 05:24, Shuotao Xu wrote:
>>
>> That a problem, latest working baseline I tested and confirmed 
>> passing hotplug tests is this branch and commit 
>> https://gitlab.freedesktop.org/agd5f/linux/-/commit/86e12a53b73135806e101142e72f3f1c0e6fa8e6 
>> which is amd-staging-drm-next. 5.14 was the branch we ups-reamed the 
>> hotplug code but it had a lot of regressions over time due to new 
>> changes (that why I added the hotplug test to try and catch them 
>> early). It would be best to run this branch on mi-100 so we have a 
>> clean baseline and only after confirming  this particular branch from 
>> this commits passes libdrm tests only then start adding the KFD 
>> specific addons. Another option if you can't work with MI-100 and 
>> this branch is to try a different ASIC that does work with this 
>> branch (if possible).
>>
>> Andrey
>>
> OK I tried both this commit and the HEAD of and-staging-drm-next on 
> two GPUs( MI100 and Radeon VII) both did not pass hotplugout libdrm 
> test. I might be able to gain access to MI200, but I suspect it would 
> work.
>
> I copied the complete dmesgs as follows. I highlighted the OOPSES for you.
>
> Radeon VII:
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20220420/0d5a6f9a/attachment.htm>