From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Randy.Dunlap" Subject: Re: The nvidiafb driver is requiring too much vmalloc space and other problems. Date: Thu, 31 Mar 2005 15:18:26 -0800 Message-ID: <424C8542.9020607@osdl.org> References: <1112310608.31848.181.camel@gaston> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1DH8vn-0007Kx-Vd for linux-fbdev-devel@lists.sourceforge.net; Thu, 31 Mar 2005 15:18:31 -0800 Received: from fire.osdl.org ([65.172.181.4] helo=smtp.osdl.org) by sc8-sf-mx1.sourceforge.net with esmtp (TLSv1:DES-CBC3-SHA:168) (Exim 4.41) id 1DH8vl-0001o4-Td for linux-fbdev-devel@lists.sourceforge.net; Thu, 31 Mar 2005 15:18:31 -0800 In-Reply-To: <1112310608.31848.181.camel@gaston> Sender: linux-fbdev-devel-admin@lists.sourceforge.net Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Benjamin Herrenschmidt Cc: Linux Fbdev development list , Andrew Morton , "Antonino A. Daplas" Benjamin Herrenschmidt wrote: > On Wed, 2005-03-30 at 14:59 -0800, Miles Lane wrote: > >>Hello, >> >>With guidance from Randy Dunlap, it has been determined that >>the nvidiafb driver will fail to operate correctly unless more than >>128M of memory is provided by using "vmalloc=". The default >>kernel configuration provides for 128M, but Randy found that: > > > .../... > > it's a problem with ioremap of the framebuffer ? (which uses get_vm_area > as well) or is there an actual vmalloc in there ? It's ioremap of the frame buffer -- 128 MB being requested and it fails if the default 128 MB kernel vmalloc area size is used. > In radeonfb, I had to limit the amount of vram actually ioremap'd by the > kernel because of that. I guess that Tony will know what to do when he sees this.... -- ~Randy ------------------------------------------------------- This SF.net email is sponsored by Demarc: A global provider of Threat Management Solutions. Download our HomeAdmin security software for free today! http://www.demarc.com/info/Sentarus/hamr30