linux-kernel - Re: [PATCH RFC] drm/amdgpu: Block userspace mapping of IO

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Message-ID: <b79094aa-89de-4afd-a4a0-3337a6a0054f@amd.com>
Date: Wed, 16 Apr 2025 14:29:21 +0200
From: Christian König <christian.koenig@....com>
To: Ujwal Kundur <ujwal.kundur@...il.com>
Cc: alexander.deucher@....com, airlied@...il.com, simona@...ll.ch,
 lijo.lazar@....com, sunil.khatri@....com, Hawking.Zhang@....com,
 Jun.Ma2@....com, Yunxiang.Li@....com, amd-gfx@...ts.freedesktop.org,
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC] drm/amdgpu: Block userspace mapping of IO

Am 16.04.25 um 13:43 schrieb Ujwal Kundur:
> Thanks for your response.
>
>> Hui what? Why do you think that grabbing a reference to an interrupt would block userspace mapping of IO registers?
> It looks like I am missing a lot of pieces to do this, I'll try again
> once I have a better understanding.
>
> Sorry about that and thanks again for your time.

No problem. If you have questions about the driver stack then just ask.

Regards,
Christian.

>
> --- Ujwal.