Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265422AbTGCWXq (ORCPT ); Thu, 3 Jul 2003 18:23:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265429AbTGCWXq (ORCPT ); Thu, 3 Jul 2003 18:23:46 -0400 Received: from front2.netvisao.pt ([213.228.128.57]:28876 "HELO front2.netvisao.pt") by vger.kernel.org with SMTP id S265422AbTGCWXo (ORCPT ); Thu, 3 Jul 2003 18:23:44 -0400 Message-ID: <003d01c341b3$aa4c89c0$cc3a81d9@netvisao.pt> From: "NunO fELICIO" To: "Linux Kernel Mailing List" References: Subject: Re: Geode GX1, video acceleration -> crash Date: Thu, 3 Jul 2003 23:37:18 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2951 Lines: 75 Yes, i have some troubles with that, do not use the fb driver from national, look at http://www.directfb.org/ , they have very good drivers =). Nuno Felicio --------------------- Systems and Coca Cola ----- Original Message ----- From: "Ferenc Engard" To: Sent: Thursday, July 03, 2003 5:24 PM Subject: Geode GX1, video acceleration -> crash > Hello there, > > First of all, I am new to the framebuffer business, and looks like > that the linux-fbdev.org site is down. Where can I find a mailing list > or other information resource about framebuffers in general, and about > Geode hardware specifically? It is a nightmare to find any information > for Geode on linux... :(( > > I am developing a graphical app for an Advantech PCM-5820 (I think :), > i.e. a Geode GX1 / CS5530 board, 64MB RAM, which I want to run a linux > / framebuffer application on. > > Now, about my problem: > > I have installed the 2.4.17 kernel, patched with NSC's original Geode > fb driver (nsc-kfb-driver-2.7.7.tar.gz), and compiled it successfully. > Also, as I couldn't find in other places, I have downloaded the > nsc_xfree_2.7.6.tgz package just to compile the GAL library > (nsc_galfns.c) in it, as this was what I needed. > > First surprise: I cannot switch into 32bpp modes! Did I miss > something? fbset refuses it, setting at boot time do not work either. > > Next, I have written a small application to test the processor's > bitblt capability. The program calls Gal_screen_to_screen_blt() to > scroll a rectangle on the screen, then usleeps a bit. It does work, > although the scheduler do not give back the run to the task until > approx. 20ms elapses (no problem at now), and in 16bpp, it do not > scroll the region but inverses it(?!). I suppose that it is not good > that the console writes out things while the bitblt engine works. > Question: should I disable writing to the console while my app runs? > How? > > But the real problem is, that I wanted to benchmark the system while > the scrolling continues, and issued a > dd if=/dev/mem of=/dev/null bs=1024 count=32768 > command. For the second go, the system freezed like a good > refrigerator. No kernel panic, nothing, just freezed. It can be > repeated, if I copy just the 1st MB of RAM, then it freezes for the > 5-6th go. :(( > > What can I do? How to debug? > > Please cc your answers to ferenc@engard.hu, too! > > Thank you: > Circum > > - > 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/ > - 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/