From: Jani Nikula <jani.nikula@linux.intel.com>
To: Daniel Klaffenbach <danielklaffenbach@gmail.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: Correct DMC version for Skylake (1.23 vs 1.26)
Date: Tue, 09 Aug 2016 11:48:01 +0300 [thread overview]
Message-ID: <8737mexr9a.fsf@intel.com> (raw)
In-Reply-To: <CA+FTZZZuZQNgMJYnC_SSUsHQgr15OGHGrdZHNSJct2ySKAAfcA@mail.gmail.com>
On Tue, 09 Aug 2016, Daniel Klaffenbach <danielklaffenbach@gmail.com> wrote:
> Hi,
>
> which one is the correct DMC version to load for Linux 4.8-rc1? The
> binary blob in linux-firmware.git is v1.26, which is also the latest
> version available for download at the linuxgraphics website.
>
> Version 1.26 used to load just fine on Kernels 4.6 and 4.7. Commit
> 4aa7fb9c introduced version pinning for v1.26 (both in
> drm-intel-nightly and the current for-linux-next branch). Later an
> older commit was pushed (a4a027a8), which lowered the
> required DMC firmware to v1.23 again, without removing the
> pinning.
>
> Now the situation is that v1.23 is pinned ATM, but v1.26 has been
> released through linux-firmware.git and is being rolled out to end
> users right now.
>
> What to do now? Is this a bug or a feature?
You should use whichever version the kernel asks. The bug is that v1.23
was dropped from linux-firmware. We may later upgrade the firmware the
kernel asks, and even backport said upgrade to stable kernels after
ensuring it works.
Rodrigo, please fix linux-firmware.
BR,
Jani.
>
>
> Regards,
> Dan
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Jani Nikula, Intel Open Source Technology Center
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next prev parent reply other threads:[~2016-08-09 8:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-09 8:37 Correct DMC version for Skylake (1.23 vs 1.26) Daniel Klaffenbach
2016-08-09 8:48 ` Jani Nikula [this message]
2016-08-10 5:57 ` Rodrigo Vivi
2016-08-10 10:26 ` Daniel Vetter
2016-08-10 15:56 ` Dave Gordon
2016-08-10 18:56 ` Daniel Klaffenbach
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