From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 66963] Rv6xx dpm problems Date: Fri, 10 Jan 2014 18:38:43 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1328586677==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 9DE19FC3B6 for ; Fri, 10 Jan 2014 10:38:44 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1328586677== Content-Type: multipart/alternative; boundary="1389379124.633bCc610.20350"; charset="us-ascii" --1389379124.633bCc610.20350 Date: Fri, 10 Jan 2014 18:38:44 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=66963 --- Comment #175 from Jaime Velasco Juan --- Created attachment 91835 --> https://bugs.freedesktop.org/attachment.cgi?id=91835&action=edit Disable the DMA ring in R6xx Hi, I've got an RV620 (HD3450/3470, pci id 1002:95c4). It usually worked with dpm, but hanged on boot maybe 1/10 times. I've been testing the dpm-reorder branch (now drm-next-3.14) and I haven't seen it hang since then. However, with this branch I got the following: [drm:r600_dma_ring_test] *ERROR* radeon: ring 3 test failed (0xCAFEDEAD) and acceleration got disabled. This starts happening with "drm/radeon/pm: move pm handling into the asic specific code". I think the DMA ring is not used by mesa nor xf86-video-ati so I changed the kernel to skip initialisation of the DMA ring and keep acceleration and with that I've had it working every time (can suspend/resume as well). I can't be sure this is the cause as the hangs are random, but the results seem promising so far. -- You are receiving this mail because: You are the assignee for the bug. --1389379124.633bCc610.20350 Date: Fri, 10 Jan 2014 18:38:44 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 175 on bug 66963 from 
Created attachment 91835 [details] [review]
Disable the DMA ring in R6xx

Hi, I've got an RV620 (HD3450/3470, pci id 1002:95c4). It usually worked with
dpm, but hanged on boot maybe 1/10 times. I've been testing the dpm-reorder
branch (now drm-next-3.14) and I haven't seen it hang since then.

However, with this branch I got the following:
[drm:r600_dma_ring_test] *ERROR* radeon: ring 3 test failed (0xCAFEDEAD)
and acceleration got disabled. This starts happening with "drm/radeon/pm: move
pm handling into the asic specific code".

I think the DMA ring is not used by mesa nor xf86-video-ati so I changed the
kernel to skip initialisation of the DMA ring and keep acceleration and with
that I've had it working every time (can suspend/resume as well).

I can't be sure this is the cause as the hangs are random, but the results seem
promising so far.

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