From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 95017] [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX ring (-35). Date: Tue, 03 May 2016 07:55:14 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0074724709==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id E68106E694 for ; Tue, 3 May 2016 07:55:13 +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 --===============0074724709== Content-Type: multipart/alternative; boundary="14622621130.b20b.29986"; charset="UTF-8" --14622621130.b20b.29986 Date: Tue, 3 May 2016 07:55:13 +0000 MIME-Version: 1.0 Content-Type: text/plain https://bugs.freedesktop.org/show_bug.cgi?id=95017 --- Comment #10 from Rui Salvaterra --- (In reply to Michel Dänzer from comment #4) > (In reply to Mathieu Malaterre from comment #3) > > If AGP is simply not supported on PowerPC, it would be nice to have a > > clearer message (or at least a warning). > > It is supported, it's just unstable on many PowerMacs. > > A patch disabling AGP by default on PowerMacs or even PPC in general > probably wouldn't be rejected. :) Hi, Michel I don't understand. I know about the coherency issues on some UniNorth bridges (DMA writes through the GART going directly to RAM, IIRC), but how did OS X cope with them? Did it also disable AGP transfers? If not, what can be done to fix this bug for real, instead of working around it? (I have a very vague memory that these hangs didn't happen before KMS, but I may be completely wrong.) Also, on a somewhat related note, there are still issues with the Radeon (R600, not SI) DRM on big endian, as for https://bugs.freedesktop.org/show_bug.cgi?id=95015. Thanks, Rui -- You are receiving this mail because: You are the assignee for the bug. --14622621130.b20b.29986 Date: Tue, 3 May 2016 07:55:13 +0000 MIME-Version: 1.0 Content-Type: text/html

Comment # 10 on bug 95017 from 
(In reply to Michel Dänzer from comment #4)
> (In reply to Mathieu Malaterre from comment #3)
> > If AGP is simply not supported on PowerPC, it would be nice to have a
> > clearer message (or at least a warning).
> 
> It is supported, it's just unstable on many PowerMacs.
> 
> A patch disabling AGP by default on PowerMacs or even PPC in general
> probably wouldn't be rejected. :)

Hi, Michel


I don't understand. I know about the coherency issues on some UniNorth bridges
(DMA writes through the GART going directly to RAM, IIRC), but how did OS X
cope with them? Did it also disable AGP transfers? If not, what can be done to
fix this bug for real, instead of working around it? (I have a very vague
memory that these hangs didn't happen before KMS, but I may be completely
wrong.)
Also, on a somewhat related note, there are still issues with the Radeon (R600,
not SI) DRM on big endian, as for
https://bugs.freedesktop.org/show_bug.cgi?id=95015.


Thanks,

Rui

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