From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Michel_D=E4nzer?= Subject: Re: [PATCH 1/3] drm/radeon: stop poisoning the GART TLB Date: Wed, 25 Jun 2014 12:59:15 +0900 Message-ID: <53AA4913.10401@daenzer.net> References: <1401888598-1961-1-git-send-email-deathsimple@vodafone.de> <5398218A.4040104@vodafone.de> <53998D99.6050008@vodafone.de> <539B1CA0.6010600@vodafone.de> <539D9601.8090308@vodafone.de> <53A2415D.6020808@daenzer.net> <53A2B155.4000001@vodafone.de> <53A7E21E.1000000@daenzer.net> <53A7F9E1.8080700@amd.com> <53A91F89.7090504@daenzer.net> <53A94F94.6040603@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from mail.gna.ch (darkcity.gna.ch [195.226.6.51]) by gabe.freedesktop.org (Postfix) with ESMTP id 5B9E689D46 for ; Tue, 24 Jun 2014 20:59:19 -0700 (PDT) In-Reply-To: <53A94F94.6040603@amd.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: =?ISO-8859-1?Q?Christian_K=F6nig?= , Alex Deucher Cc: dri-devel List-Id: dri-devel@lists.freedesktop.org On 24.06.2014 19:14, Christian K=F6nig wrote: > Am 24.06.2014 08:49, schrieb Michel D=E4nzer: >> On 23.06.2014 18:56, Christian K=F6nig wrote: >>> Am 23.06.2014 10:15, schrieb Michel D=E4nzer: >>>> On 19.06.2014 18:45, Christian K=F6nig wrote: >>>> >>>>> I think even when we revert to the old code we have a couple of >>>>> unsolved >>>>> problems with the VM support or in the driver in general where we >>>>> should >>>>> try to understand the underlying reason for it instead of applying >>>>> more >>>>> workarounds. >>>> I'm not suggesting applying more workarounds but going back to a known >>>> more stable state. It seems like we've maneuvered ourselves to a rather >>>> uncomfortable position from there, with no clear way to a better place. >>>> But if we basically started from the 3.14 state again, we have a few >>>> known hurdles like mine and Marek's Bonaire etc. which we know any >>>> further improvements will have to pass before they can be considered >>>> for >>>> general consumption. >>> Yeah agree, especially on the uncomfortable position. >>> >>> Please try with the two attached patches applied on top of 3.15 and >>> retest. They should revert back to the old implementation. >> Unfortunately, X fails to start with these, see the attached excerpt >> from dmesg. > = > My fault, incorrectly solved a merge conflict and then failed to test > the right kernel. > = > BTW: Wasn't there an option to tell grup to use the latest installed > kernel instead of the one with the highest version number? Can't seem to > find that any more. No idea, unfortunately. > Please try attached patches instead, With these patches, 3.15 just survived two piglit runs on my Bonaire, one with the GART poisoning fix and one without. It never survived a single run before. Acked-and-Tested-by: Michel D=E4nzer -- = Earthling Michel D=E4nzer | http://www.amd.com Libre software enthusiast | Mesa and X developer