From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 16 Oct 2002 15:04:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 16 Oct 2002 15:04:49 -0400 Received: from web12903.mail.yahoo.com ([216.136.174.70]:35751 "HELO web12903.mail.yahoo.com") by vger.kernel.org with SMTP id ; Wed, 16 Oct 2002 15:04:48 -0400 Message-ID: <20021016191045.47426.qmail@web12903.mail.yahoo.com> Date: Wed, 16 Oct 2002 12:10:45 -0700 (PDT) From: Daniel Zinder Subject: How to allow caching of PCI addresses in user space? To: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I am currently working on a univ. project which requires caching of data stored on a remote computer and accessed via PCI address mmapping to userspace. I have repeatdly failed to enable caching of these addresses. The mmaping is done using remap_page_range. I have tried various protection options without success. Does this have to do with anything concerning the MTRR's? How can I allow caching of PCI addresses accessed in user space thorugh mmaping using remap_page_range? Thanks, Daniel Zinder __________________________________________________ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos & More http://faith.yahoo.com