From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 19002] Radeon rv730 AGP/KMS/DRM kernel lockup Date: Tue, 14 Dec 2010 21:18:06 GMT Message-ID: <201012142118.oBELI6KK028839@demeter1.kernel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.sourceforge.net List-Id: dri-devel@lists.freedesktop.org https://bugzilla.kernel.org/show_bug.cgi?id=19002 --- Comment #21 from Alex Deucher 2010-12-14 21:17:59 --- (In reply to comment #19) > > 2) No AGP fast-write here at all. AFAIK it's a chipset errata on AMD 8xxx. It's buggy on all boards. We don't enable it at all with kms. > > 3) 256 MB AGP aperture, half of which is of course reserved for the AGPGART > IOMMU on the AMD 8xxx chipset. The BIOS allows larger (upto 1GB, which happens > to be video memory size as well), but that was a reasonably late addition to > the BIOS (256 was the previous limit), and for whatever reason I couldn't get > it to work in testing, so I've stuck with 256 MB (128 MB of it AGPGART IOMMU), > which /does/ work. > > BTW, /should/ a larger aperture work? Given that half of it's AGGART IOMMU, > should larger == better? I've not tested larger recently, maybe it works now? > Bigger isn't necessarily better, it just means more pages can be mapped into the gart. We default to 512 MB on non-AGP systems. > 4) dmesg says AGP v3 device in 8x mode. Years ago I had problems with 8x and > had to use 4x max, but last I tried, 4x and 8x worked but 1x and 2x were > broken. > AGP v3 devices only support 4x and 8x modes. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel