From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 7 Jan 2004 10:56:01 +0100 To: Benjamin Herrenschmidt Cc: Michael Schmitz , Rob Baxter , Sven Luther , Geert Uytterhoeven , linuxppc-dev list Subject: Re: multiple separate pci bridges ... Message-ID: <20040107095601.GB24780@iliana> References: <1073467436.5753.102.camel@gaston> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: <1073467436.5753.102.camel@gaston> From: Sven Luther Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Wed, Jan 07, 2004 at 08:23:57PM +1100, Benjamin Herrenschmidt wrote: > On Wed, 2004-01-07 at 20:02, Michael Schmitz wrote: > > > note that there's still a problem with XFree which will "see" those > > > BARs and, according to the log posted by Sven, shoke. Sven, can you > > > try "hiding" the host bridge completely from the config ops and see > > > if that helps with XFree ? That's not a very good solution though, > > > we'll have to do something different about it. Now if only XFree > > > stopped mucking with the PCI bus... > > > > Is this a problem with overlapping PCI resources again (thought that was > > fixed in 2.4 anyway)? Resolving the overlap helped there. What does XFree > > do, simply disable resources? > > There should be no overlap.... Let me check the log ... > > (II) Host-to-PCI bridge: > (II) Bus 16: bridge is at (0:0:0), (-1,16,0), BCTRL: 0x0008 (VGA_EN is > set) > (II) Bus 16 I/O range: > [0] -1 0 0x00000000 - 0x0000ffff (0x10000) IX[B] > (II) Bus 16 non-prefetchable memory range: > [0] -1 0 0x00000000 - 0xffffffff (0x0) MX[B] > (II) Bus 16 prefetchable memory range: > [0] -1 0 0x00000000 - 0xffffffff (0x0) MX[B] > > The problem is on the host bridge BARs again. I don't know what they > are supposed to do, you need to look at the bridge spec, but you > definitely need to hide them some way... What i don't know is why X looks at them, even if it didn't appear on the pci devices list. i am currently building X 4.4 out of CVS to follow up on where exactly the problem is. Friendly, Sven Luther ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/