Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755647Ab1E0Pz2 (ORCPT ); Fri, 27 May 2011 11:55:28 -0400 Received: from rcsinet10.oracle.com ([148.87.113.121]:22942 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753845Ab1E0Pz1 (ORCPT ); Fri, 27 May 2011 11:55:27 -0400 Date: Fri, 27 May 2011 11:55:07 -0400 From: Konrad Rzeszutek Wilk To: Daniel Haid Cc: Andi Kleen , linux-kernel@vger.kernel.org Subject: Re: Question about iommu on x86_64 and radeon driver. Message-ID: <20110527155507.GB11273@dumpdata.com> References: <6ac3f6faad655602b767aa14b355e982@admin.gogi.tv> <20110523220536.GB11961@dumpdata.com> <756073831c36e0404199a4e8239bcb70@admin.gogi.tv> <08370791664f069624d25c757ed101c0@admin.gogi.tv> <20110525125752.GB3467@dumpdata.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Source-IP: rtcsinet22.oracle.com [66.248.204.30] X-CT-RefId: str=0001.0A090208.4DDFC965.008D:SCFSTAT5015188,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 731 Lines: 19 On Fri, May 27, 2011 at 04:48:39PM +0100, Daniel Haid wrote: > I have looked again at the radeon driver and it seems that the > drm drivers use vmalloc_32 to allocate their dma memory and > that vmalloc_32 should allocate physical 32-bit addresses > (in 2.6.39)? The DRM code is not used anymore. It was used by XFree86 but nowadays the TTM code is used instead. > > So why does it still not work? Ah, this would be a lengthy writeup.. so did you look at the link I pointed you to? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/