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Bug#246782: marked as done (xserver-xfree86: PCI domain detection still doesn't work for me)



Your message dated Thu, 7 Oct 2004 17:30:52 -0500
with message-id <20041007223052.GW19131@redwald.deadbeast.net>
and subject line Bug#246782: Still failing PCI domain detection.
has caused the attached Bug report to be marked as done.

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Bug report if necessary, and/or fix the problem forthwith.

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>From ramune@net-ronin.org Fri Apr 30 22:17:20 2004
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Date: Fri, 30 Apr 2004 22:13:35 -0700
From: carbonated beverage <ramune@net-ronin.org>
To: submit@bugs.debian.org
Subject: Failure to find video card with X
Message-ID: <20040501051335.GA32452@net-ronin.org>
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Package: xserver-xfree86
Version: 4.3.0-7

The code in xc/programs/Xserver/xfree86/hw/xfree86/os-support/bus/linuxPci.c
doesn't handle PCI Domains, so the X server fails to find the entry for the
video card under /proc.

This problem manifests itself with kernel 2.6.x.

Here's a simple patch to fix it, it first tries the old-style /proc/bus/pci
access, then tries to access it with the PCI Domain information as well.

I've only tested this on an Ultra 5 workstation with the testing distro.

---- begin patch ----
--- xc/programs/Xserver/hw/xfree86/os-support/bus/linuxPci.c.orig	2004-04-30 22:07:52.572277727 -0700
+++ xc/programs/Xserver/hw/xfree86/os-support/bus/linuxPci.c	2004-04-30 22:13:59.599136716 -0700
@@ -101,23 +101,34 @@
 static int
 linuxPciOpenFile(PCITAG tag)
 {
-	static int	lbus,ldev,lfunc,fd = -1;
-	int		bus, dev, func;
-	char		file[32];
+	static int	lbus,ldev,ldom,lfunc,fd = -1;
+	int		bus, dev, dom, func;
+	char		file[32], file2[32];
 
 	bus  = PCI_BUS_FROM_TAG(tag);
 	dev  = PCI_DEV_FROM_TAG(tag);
+	dev  = PCI_DOM_FROM_TAG(tag);
 	func = PCI_FUNC_FROM_TAG(tag);
-	if (fd == -1 || bus != lbus || dev != ldev || func != lfunc) {
+	if (fd == -1 || bus != lbus || dev != ldev || dom != ldom ||
+	    func != lfunc) {
 		if (fd != -1)
 			close(fd);
-		if (bus < 256)
+		if (bus < 256) {
 			sprintf(file, "/proc/bus/pci/%02x/%02x.%1x",
 				bus, dev, func);
-		else
+			sprintf(file2, "/proc/bus/pci/%04x:%02x/%02x.%1x",
+				dom, bus, dom, dev, func);
+		} else {
 			sprintf(file, "/proc/bus/pci/%04x/%02x.%1x",
 				bus, dev, func);
+			sprintf(file2, "/proc/bus/pci/%04x:%04x/%02x.%1x",
+				dom, bus, dev, func);
+		}
 		fd = open(file,O_RDWR);
+		if(fd == -1) {
+			fd = open(file2,O_RDWR);
+			ldom  = dom;
+		}
 		lbus  = bus;
 		ldev  = dev;
 		lfunc = func;
---- end patch ----

-- DN
Daniel

---------------------------------------
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>From branden@redwald.deadbeast.net Thu Oct 07 15:30:56 2004
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Date: Thu, 7 Oct 2004 17:30:52 -0500
From: Branden Robinson <branden@debian.org>
To: 246782-done@bugs.debian.org
Subject: Re: Bug#246782: Still failing PCI domain detection.
Message-ID: <20041007223052.GW19131@redwald.deadbeast.net>
References: <20040825173010.GA26570@net-ronin.org>
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On Wed, Aug 25, 2004 at 10:30:10AM -0700, carbonated beverage wrote:
> quit
>=20
> Ah, I see the problem.  I added unstable to the sources.list and
> put testing as the default target in apt.conf, updated xserver-xfree86.

Re-closing per submitter.

> When is this going into testing?

When we release a version that doesn't have release-critical bugs in it.
:)

You can stay abreast of the situation at the following URL:

http://packages.qa.debian.org/x/xfree86.html

--=20
G. Branden Robinson                |    My first priority in any attack is
Debian GNU/Linux                   |    to solve the problem -- not issue a
branden@debian.org                 |    press release.
http://people.debian.org/~branden/ |    -- Steve McInerney

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