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Date:      Tue, 1 Sep 2020 16:31:58 +0200
From:      Niclas Zeising <zeising@freebsd.org>
To:        Emmanuel Vadot <manu@bidouilliste.com>
Cc:        meloun.michal@gmail.com, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r364737 - head/sys/dev/drm2
Message-ID:  <588309ba-8387-f3b7-0381-f80bdfef7e6d@freebsd.org>
In-Reply-To: <20200901161904.16e1ea156f622989df3d261a@bidouilliste.com>
References:  <202008242253.07OMrNO2016612@repo.freebsd.org> <790db2ea-0877-671e-e48f-ec6da42c7437@gmail.com> <20200901151635.91c121acb2bf58e9282aa6ae@bidouilliste.com> <235f7f25-4e38-9154-e990-11aa6f8464d4@freebsd.org> <20200901161904.16e1ea156f622989df3d261a@bidouilliste.com>

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On 2020-09-01 16:19, Emmanuel Vadot wrote:
> On Tue, 1 Sep 2020 15:32:18 +0200
> Niclas Zeising <zeising@freebsd.org> wrote:
> 
>> On 2020-09-01 15:16, Emmanuel Vadot wrote:
>>> On Tue, 1 Sep 2020 15:13:53 +0200
>>> Michal Meloun <meloun.michal@gmail.com> wrote:
>>>
>>>>
>>>>
>>>> On 25.08.2020 0:53, Niclas Zeising wrote:
>>>>> Author: zeising (doc,ports committer)
>>>>> Date: Mon Aug 24 22:53:23 2020
>>>>> New Revision: 364737
>>>>> URL: https://svnweb.freebsd.org/changeset/base/364737
>>>>>
>>>>> Log:
>>>>>     drm2: Update deprecation message
>>>>>     
>>>>>     Update the deprecation message in the drm2 (aka legacy drm) drivers to point
>>>>>     towards the graphics/drm-kmod ports for all architectures, not just amd64.
>>>> Only known user of drm2 is arm/tegra124 based boards. How
>>>> graphics/drm-kmod can help for these?
>>>> Or be more specific - drm2 allows me to hot-plug monitor to tegra based
>>>> board an use 2 scaled overlay planes (which is exactly whats I want for
>>>>    my application). Which alternative can you offer me?
>>>> Btw, as you can see, the maintenance cost of drm2 is close to zero and
>>>> the dev/drm2 code does not inherit with any of the major architectures.
>>>>
>>>> Michal
>>>
>>>    I think that the goal was only to mfc this to warn users before 12.2
>>> is branched, maybe a direct commit to 12 would have been better.
>>>
>>
>> No, the change is correct.
>> drm-legacy-kmod (the port) is going away, especially on FreeBSD 13,
>> since it is preventing updates to the FreeBSD VM subsystem.  I sent
>> an-email about this to a variety of lists about a week ago.
>> I do know that there are a few special users of drm2 in FreeBSD current,
>> I do not know how those are affected.  Since, on FreeBSD current, most
>> architectures can use drm-kmod, I believe it is good to point everyone
>> towards that ports, instead of pointing everyone except amd64 users to
>> drm-legacy-kmod.
>> Regards
>> -- 
>> Niclas Zeising
> 
>   drm2 in src is only used for arm, so as Michal wrote in another email
> the warning will be seen only for tegra users, the mfc'ed commit will
> be seen by intel/amd ones though.
> 

I still have to make a general change that can be MFCd.  And pointing 
arm tegra users to drm-legacy-kmod is equally wrong.
Regards
-- 
Niclas Zeising



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