From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 108625] AMDGPU - Can't even get Xorg to start - Kernel driver hangs with ring buffer timeout on ARM64 Date: Mon, 19 Nov 2018 13:39:44 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0810033904==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id C26BE89F5B for ; Mon, 19 Nov 2018 13:39:43 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0810033904== Content-Type: multipart/alternative; boundary="15426347830.0B4e2.21938" Content-Transfer-Encoding: 7bit --15426347830.0B4e2.21938 Date: Mon, 19 Nov 2018 13:39:43 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D108625 --- Comment #16 from Christian K=C3=B6nig --- (In reply to Carsten Haitzler from comment #15) > Makes it work. Of course this isn't a brilliant patch, but indeed there is > something up with the way write combined memory is handled on ARM here. Well disabling WC is also a good way of reducing the performance in general. E.g. what could be is that because you disabled WC the performance is reduc= ed and because of that the timing is changed.... --=20 You are receiving this mail because: You are the assignee for the bug.= --15426347830.0B4e2.21938 Date: Mon, 19 Nov 2018 13:39:43 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comme= nt # 16 on bug 10862= 5 from Christian K=C3= =B6nig 
(In reply to Carsten Haitzler from comment #15)
> Makes it work. Of course this isn't a brilliant =
patch, but indeed there is
> something up with the way write combined memory is handled on ARM here=
.

Well disabling WC is also a good way of reducing the performance in general.

E.g. what could be is that because you disabled WC the performance is reduc=
ed
and because of that the timing is changed....

You are receiving this mail because:
  • You are the assignee for the bug.
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