CONFIG_AMDGPU triggers full rebuild

CONFIG_AMDGPU triggers full rebuild

[Thomas Zimmermann]

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Hi,

whenever I change the option CONFIG_AMDGPU, I have to rebuild the whole
kernel. I guess it auto-selects some architecture-specific feature. That
full rebuild might be avoidable if I could enable that feature permanently.

Any ideas what this could be and how to avoid the full rebuilt?

Best regards
Thomas

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer


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Re: CONFIG_AMDGPU triggers full rebuild

[Christian König]

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Maybe MMU notifiers? But honestly I don't know for sure.

Christian.

Am 25.09.20 um 16:29 schrieb Thomas Zimmermann:
> Hi,
>
> whenever I change the option CONFIG_AMDGPU, I have to rebuild the whole
> kernel. I guess it auto-selects some architecture-specific feature. That
> full rebuild might be avoidable if I could enable that feature permanently.
>
> Any ideas what this could be and how to avoid the full rebuilt?
>
> Best regards
> Thomas
>
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx


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Re: CONFIG_AMDGPU triggers full rebuild

[Thomas Zimmermann]

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Hi Christian

Am 25.09.20 um 16:54 schrieb Christian König:
> Maybe MMU notifiers? But honestly I don't know for sure.

I checked. In my current config MMU_NOTIFIERS is y and DRM_AMDGPU is n.
So it shouldn't have triggered the rebuilds, I guess.

Anyway, thanks for trying to help.

Best regards
Thomas

> 
> Christian.
> 
> Am 25.09.20 um 16:29 schrieb Thomas Zimmermann:
>> Hi,
>>
>> whenever I change the option CONFIG_AMDGPU, I have to rebuild the whole
>> kernel. I guess it auto-selects some architecture-specific feature. That
>> full rebuild might be avoidable if I could enable that feature permanently.
>>
>> Any ideas what this could be and how to avoid the full rebuilt?
>>
>> Best regards
>> Thomas
>>
>>
>> _______________________________________________
>> amd-gfx mailing list
>> amd-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer


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Re: CONFIG_AMDGPU triggers full rebuild

[Felix Kuehling]

If I had to guess, I'd say something HMM-related. There has been some
back-and-forth between kernel releases. So I won't say anything more
specific without knowing exactly which branch or release you're on.

Regards,
  Felix

Am 2020-09-25 um 10:29 a.m. schrieb Thomas Zimmermann:
> Hi,
>
> whenever I change the option CONFIG_AMDGPU, I have to rebuild the whole
> kernel. I guess it auto-selects some architecture-specific feature. That
> full rebuild might be avoidable if I could enable that feature permanently.
>
> Any ideas what this could be and how to avoid the full rebuilt?
>
> Best regards
> Thomas
>
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=02%7C01%7Cfelix.kuehling%40amd.com%7Cc20a2a8c47254a18c90b08d8615f6e31%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637366409873197811&sdata=k2S8ouQzP6GKO3AWJRheEFblXp7CkULMvxrhGUHWq3g%3D&reserved=0
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