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RE: Adding a PCI device that doesn't exist (yet)
by YhLu 06 Oct '04

06 Oct '04

Can you for the FPGA programming in the auto.c and issue an soft_reset in auto.c? YH -----Original Message----- From: Jay Miller [mailto:jmiller@actuality-systems.com] Sent: Tuesday, October 05, 2004 11:39 AM To: linuxbios(a)clustermatic.org Subject: Adding a PCI device that doesn't exist (yet) Hi All, The PCI interface to our "special sauce" is an FPGA that we're programming after the OS boots. The hardware doesn't have PCI hot-plug support, which means we're forced to reboot after programming in order to re-enumerate the bus in BIOS. Or are we? I was thinking of replacing the default scan_bus method with one that calls the default method for most devices and inserts the non-existent device information into the table at the appropriate time. Has anyone been successful at this sort of thing? Cheers, Jay Miller 781-229-7812x117 Actuality Systems, Inc. jmiller(a)actuality-systems.com _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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RE: Adding a PCI device that doesn't exist (yet)
by Jay Miller 06 Oct '04

06 Oct '04

Thanks for your help. Certainly that's not ideal, but it may turn out to be our only option. Currently I'm investigating using proc_pci_attach_device() at the kernel level to add the device from the driver module init(post-program), but it's not looking promising. Thanks, Jay Miller 781-229-7812x117 Actuality Systems, Inc. jmiller(a)actuality-systems.com -----Original Message----- From: Ronald G. Minnich [mailto:rminnich@lanl.gov] Sent: Wednesday, October 06, 2004 12:23 PM To: YhLu Cc: Jay Miller; linuxbios(a)clustermatic.org Subject: RE: Adding a PCI device that doesn't exist (yet) On Tue, 5 Oct 2004, YhLu wrote: > Can you for the FPGA programming in the auto.c and issue an soft_reset in > auto.c? I think this can work with the current mechanisms. You need to have your chip programmed pre-pci-scan, and the current config mechanism supports that fine. Is this V1 or V2, I forget. ron

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RE: Testbios help with nvidia 6800Gt and simple how to
by Ronald G. Minnich 06 Oct '04

06 Oct '04

Dave, your faq is now featured on linuxbios.org ron p.s. I screwed up the news page somehow, don't worry about it.

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ebox-II SiS 550 flash_rom
by Trellix78＠aol.com 06 Oct '04

06 Oct '04

I've been trying to get freebios V1 to work with an ebox-II board that I have have. It has the SiS 550 northsouthbridge and some other cool stuff. However, flash_rom refuses to recognize the ROM chip or write to it. Is there a flash_rom version that'll work or do I have to modify the version that I currently have? Thanks... David

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NXTV job posting
by Dave Ashley 06 Oct '04

06 Oct '04

Sorry about posting this here but I think it might make sense seeing as NXTV is a linuxbios friendly company. http://www.xdr.com/nxtv-job.html -Dave PS The site + emails really represent nxtv.com, it is just easier to use my personal website for this.

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RE: Testbios help with nvidia 6800Gt and simple how to
by Ronald G. Minnich 06 Oct '04

06 Oct '04

On Tue, 5 Oct 2004, Dave Aubin wrote: > Ron if I write a simple faq can you provide some mechanism to > Allow updates to it? if you can help stefan and me set up twiki at openbios.org, that's one choice; else I will put your faq on the current linuxbios web page. ron

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2 questions
by Ronald G. Minnich 06 Oct '04

06 Oct '04

i855GM/GMCH. I set up the registers, set up the MODE for a NOP, and on the first read, the whole thing hangs. Suggestions for what to do next, anyone :-0) Anybody seen good PC/104 or biscuit format Power PC systems? I'm getting a little tired of dealing with the intel side of the house, because the docs are so sparse nowadays. Pointers welcome. PPC 405 is no good: no floating point. thanks ron

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RE: Testbios help with nvidia 6800Gt and simple how to
by Dave Aubin 05 Oct '04

05 Oct '04

Ron, Please change my second example in the testbios faq to Reflect Richard's change please. Thanks, Dave:) -----Original Message----- From: Richard Smith [mailto:rsmith@bitworks.com] Sent: Tuesday, October 05, 2004 4:01 PM To: Dave Aubin Cc: linuxbios(a)clustermatic.org Subject: Re: Testbios help with nvidia 6800Gt and simple how to Dave Aubin wrote: > the video card you wish to work under linux bios. > ii. From the command line enter: > dd if=/dev/mem of=vgabios.bin skip=1536 count=128 or > dd if=/dev/mem of=vgabios.bin bs=1k count=64 skip=786432 > Oop. Thinko. My line is jacked up. should be for bs=1k skip=768. skip=786432 is for a block size of 1 byte. -- Richard A. Smith

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Re: Testbios help with nvidia 6800Gt and simple how to
by Richard Smith 05 Oct '04

05 Oct '04

Dave Aubin wrote: > the video card you wish to work under linux bios. > ii. From the command line enter: > dd if=/dev/mem of=vgabios.bin skip=1536 count=128 or > dd if=/dev/mem of=vgabios.bin bs=1k count=64 skip=786432 > Oop. Thinko. My line is jacked up. should be for bs=1k skip=768. skip=786432 is for a block size of 1 byte. -- Richard A. Smith

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RE: Testbios help with nvidia 6800Gt and simple how to
by Dave Aubin 05 Oct '04

05 Oct '04

I've taken the time to put together a simple testbios faq. I hope it is helpful. Feedback and additions are welcome. Thanks, Dave Testbios (vgabios) Faq Date: 10/5/2004 Author(s): David Aubin daubin(a)actuality-systems.com Purpose: Testbios is an i386 emulator that sits on top of user space linux. It's primary purpose is to provide program video rom's in to the cached memory area. Faq Contents: 1. Where to obtain testbios 2. Prerequisites 3. How to build testbios 4. How to retrieve a good video bios 5. How to use testbios 1. Where to obtain testbios A. Testbios(vgabios) can be retrieved from the linuxbios/freebios source tree: http://www.linuxbios.org/developer/download/index.html 2. Prerequisites A. You must have installed pci-utils i. Get http://atrey.karlin.mff.cuni.cz/~mj/pciutils.shtml 3. How to build testbios: A. cd freebios/util/vgabios B. Edit ./Makefile and fill in the correct values for your environment I build on a 64 AMD so my makefile looks like this --Being ./Makefile for x64-- CC = gcc ARCH := $(shell uname -m | sed -e s,i[3456789]86,i386,) INCLUDE = -I ../pciutils-2.1.11 CFLAGS = -Wall -Ix86emu/include -O2 -g $(INCLUDE) INTOBJS = int10.o int15.o int16.o int1a.o inte6.o OBJECTS = testbios.o helper_exec.o helper_mem.o $(INTOBJS) LDFLAGS = -static-libgcc -static LIBS = x86emu/src/x86emu/libx86emu.a ../pciutils-2.1.11/lib/libpci.a # user space pci is the only option right now. OBJECTS += pci-userspace.o ifeq ($(shell if test "$(ARCH)" == "x86_64" ; then echo 1; fi), 1) CFLAGS +=-m32 -march=i386 endif all: testbios testbios: $(OBJECTS) $(LIBS) $(CC) $(CFLAGS) -o testbios $(OBJECTS) $(LDFLAGS) $(LIBS) helper_exec.o: helper_exec.c test.h x86emu/src/x86emu/libx86emu.a: $(MAKE) -C x86emu/src/x86emu/ -f makefile.linux clean: $(MAKE) -C x86emu/src/x86emu/ -f makefile.linux clean rm -f *.o *~ testbios distclean: clean $(MAKE) -C x86emu/src/x86emu/ -f makefile.linux clean --End ./Makefile-- C. Edit ~vgabios/x86emu/src/x86emu/makefile.linux and fill in the correct values for your environment I build on a 64 AMD so my makefile looks like this --Begin ~vgabios/x86emu/src/x86emu/makefile.linux-- ######################################################################## ##### # # Realmode X86 Emulator Library # # Copyright (C) 1996-1999 SciTech Software, Inc. # # ======================================================================== # # Permission to use, copy, modify, distribute, and sell this software and # its documentation for any purpose is hereby granted without fee, # provided that the above copyright notice appear in all copies and that # both that copyright notice and this permission notice appear in # supporting documentation, and that the name of the authors not be used # in advertising or publicity pertaining to distribution of the software # without specific, written prior permission. The authors makes no # representations about the suitability of this software for any purpose. # It is provided "as is" without express or implied warranty. # # THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, # INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO # EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR # CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF # USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR # OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR # PERFORMANCE OF THIS SOFTWARE. # # ======================================================================== # # Descripton: Linux specific makefile for the x86emu library. # ######################################################################## ##### TARGETLIB = libx86emu.a OBJS=\ debug.o \ decode.o \ fpu.o \ ops.o \ ops2.o \ prim_ops.o \ sys.o $(TARGETLIB): $(OBJS) ar rv $(TARGETLIB) $(OBJS) INCS = -I. -Ix86emu -I../../include CFLAGS += -D__DRIVER__ -DFORCE_POST -D_CEXPORT= -DNO_LONG_LONG -DDEBUG ARCH := $(shell uname -m | sed -e s,i[3456789]86,i386,) ifeq ($(shell if test "$(ARCH)" == "x86_64" ; then echo 1; fi), 1) CFLAGS +=-m32 -march=i386 endif .c.o: # gcc -m32 -march=i386 -g -O -Wall -c $(CFLAGS) $(INCS) $*.c gcc -g -O -Wall -c $(CFLAGS) $(INCS) $*.c .cpp.o: # gcc -m32 -march=i386 -c $(CFLAGS) $(INCS) $*.cpp gcc -c $(CFLAGS) $(INCS) $*.cpp clean: rm -f *.a *.o validate: validate.o libx86emu.a gcc -o validate validate.o -lx86emu -L. --End ~vgabios/x86emu/src/x86emu/makefile.linux-- D. Once built you could have a 32bit testbios executable made. Depending on your embedded environment you might want to have it built shared as the above example makes it static. Just remove -static-libgcc -static from the LDFLAGS on ./Makefile if you wish to have it built shared. 4. How to retrieve a good video bios A. There are sites that have video bios roms on their website. I know of this one for nvidia cards: http://whitebunny.demon.nl/hardware/chipset_nvidia.html B. However you should be able to retrieve your own video bios as well with linux. i. Boot up a machine with a commercial bios (not linux bios) with the video card you wish to work under linux bios. ii. From the command line enter: dd if=/dev/mem of=vgabios.bin skip=1536 count=128 or dd if=/dev/mem of=vgabios.bin bs=1k count=64 skip=786432 This assumes you card's bios is cached in 0xc0000. You can see where and how much your card's bios is using by doing a cat iomem | grep "Video ROM" a. dd Explained (man dd to learn more): 1. if is the location to retrieve from. 2. of is the output file (your rom image) 3. skip jumps n blocks where the default n is 512 bytes 4. count is how many blocks you wish to read 5. bs is the block size C. You now have a video bios image 5. How to use testbios A. Currently testbios only works from user space linux (10/4/04) B. Example from a linux command line or script enter the following to get your video bios programmed: ./testbios -s 65536 --abseg /dev/mem ./vgabios.bin i. Testbios explained a. -s <size> how much of the video bios is there b. --abseg where would you like to write this (/dev/mem default) c. filename of video bios d. -d diag mode <pci busdevfn> 1. How to get pci busdevfn A. lspci B. look for your video card Example: 2:00:00 2 (00 << 3) | 00 = 0x200 Example: 00:12.0: 0 (12 << 3) | 0 = 0x90 e. -t dump f. -c codesegment Where do you want to start, default is 0xc0000 g. -b base Where do you want base to be default is 0xc000 h. -i instruction pointer usually left off as the default -----Original Message----- From: linuxbios-admin(a)clustermatic.org [mailto:linuxbios-admin@clustermatic.org] On Behalf Of Dave Aubin Sent: Tuesday, October 05, 2004 2:22 PM To: Richard Smith Cc: linuxbios(a)clustermatic.org Subject: RE: Testbios help with nvidia 6800Gt and simple how to Hi, Thank you:) Yes, it was at 0xc0000-0xc7fff, which is only 32k. But the image I got from the windows tool was 64k (double 8000). Weird. I would like to stay away from window tools. The info you provided is nice. I wish there was a way for us To make a faq and we could add this to the testbios faq. There Is a lot of good info on the clustermatic list, but it is all Dispersed. Ron if I write a simple faq can you provide some mechanism to Allow updates to it? Thanks, Dave -----Original Message----- From: Richard Smith [mailto:rsmith@bitworks.com] Sent: Tuesday, October 05, 2004 2:16 PM To: Dave Aubin Cc: linuxbios(a)clustermatic.org Subject: Re: Testbios help with nvidia 6800Gt and simple how to Dave Aubin wrote: > It seems my dd returned an unusable binary. I found a good binary for > The nvidia card from here: > http://whitebunny.demon.nl/hardware/chipset_nvidia.html > I was wondering about your dd command that but I had not had a chance to respond yet. This is what I use: dd if=/dev/mem of=vbios.bin bs=1k count=64 skip=786432 That will rip the bios from 0x0c0000. You can verify that you actually have bios there with 'hd -s 0x0c0000 -n 256 /dev/mem' in some cases it may be located at 0x0e0000 rather than 0x0c0000. It should start with the 0x55aa (Little endian) or 0xaa55 (big endian) and futher on you should see some text identifying the bios. -- Richard A. Smith _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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