LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: "Christian König" <ckoenig.leichtzumerken@gmail.com>
To: Jean-Marc Valin <jmvalin@mozilla.com>,
christian.koenig@amd.com, airlied@linux.ie,
alexander.deucher@amd.com, Felix.Kuehling@amd.com,
labbott@redhat.com, akpm@linux-foundation.org,
michel.daenzer@amd.com, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Subject: Re: AMD graphics performance regression in 4.15 and later
Date: Tue, 10 Apr 2018 08:48:04 +0200 [thread overview]
Message-ID: <cb69fe04-988d-b337-057d-589cb0622e84@gmail.com> (raw)
In-Reply-To: <76a30815-28e3-e798-03de-a3cdfade4c64@mozilla.com>
Am 09.04.2018 um 17:17 schrieb Jean-Marc Valin:
> On 04/09/2018 05:42 AM, Christian König wrote:
>> Backporting all the detection logic is to invasive, but you could just
>> go into drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c and forcefull use the
>> other code path.
>>
>> Just look out for "#ifdef CONFIG_SWIOTLB" checks and disable those.
> Do you mean just taking the 4.15 code as is and replacing
> "#ifdef CONFIG_SWIOTLB" with "#if 0" in
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c or are you talking about using a
> different version of drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c ?
Yes, exactly. The code then won't work any more on some ARMs or systems
with more than 1TB of memory, but I don't think you care about that :)
Christian.
>
> Jean-Marc
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2018-04-10 6:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-06 0:30 AMD graphics performance regression in 4.15 and later Jean-Marc Valin
2018-04-06 8:03 ` Christian König
2018-04-06 8:10 ` Christian König
2018-04-06 15:30 ` Jean-Marc Valin
2018-04-09 11:48 ` Christian König
2018-04-06 16:42 ` Jean-Marc Valin
2018-04-06 17:20 ` Christian König
2018-04-06 22:00 ` Jean-Marc Valin
2018-04-09 9:42 ` Christian König
2018-04-09 15:17 ` Jean-Marc Valin
2018-04-10 6:48 ` Christian König [this message]
2018-04-11 4:00 ` Gabriel C
2018-04-11 5:02 ` Gabriel C
2018-06-06 11:28 ` Gabriel C
2018-06-06 11:33 ` Christian König
2018-06-06 12:08 ` Gabriel C
2018-06-06 12:19 ` Christian König
2018-04-11 9:37 ` Christian König
2018-04-11 14:26 ` Gabriel C
2018-04-11 17:21 ` Gabriel C
2018-04-11 18:35 ` Jean-Marc Valin
2018-04-11 22:20 ` Gabriel C
2018-04-12 1:47 ` Gabriel C
2018-04-20 14:47 ` Michel Dänzer
2018-04-20 19:40 ` Felix Kuehling
2018-04-23 10:23 ` Michel Dänzer
2018-07-13 2:23 ` Jean-Marc Valin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=cb69fe04-988d-b337-057d-589cb0622e84@gmail.com \
--to=ckoenig.leichtzumerken@gmail.com \
--cc=Felix.Kuehling@amd.com \
--cc=airlied@linux.ie \
--cc=akpm@linux-foundation.org \
--cc=alexander.deucher@amd.com \
--cc=christian.koenig@amd.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=jmvalin@mozilla.com \
--cc=labbott@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=michel.daenzer@amd.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).