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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: eiichiro.oiwa.nm@hitachi.com
Cc: David Miller <davem@davemloft.net>,
	alan@redhat.com, jesse.barnes@intel.com, greg@kroah.com,
	linux-kernel@vger.kernel.org
Subject: Re: Re[2]: pci_fixup_video change blows up on sparc64
Date: Thu, 19 Oct 2006 12:20:34 +0100	[thread overview]
Message-ID: <1161256834.17335.17.camel@localhost.localdomain> (raw)
In-Reply-To: <XNM1$9$0$4$$3$3$7$A$9002706U45374cd7@hitachi.com>

Ar Iau, 2006-10-19 am 19:01 +0900, ysgrifennodd
eiichiro.oiwa.nm@hitachi.com:
> It's impossible that multiple VGA cards, which have not the expansion
> ROM, exist in a system regardless of multiple PCI domain system.

Strange. I've worked on several machines where it could.

The 0xC0000 is a physical address only as far as the bridge is concerned
(if the bridge even implements it - not all do). The PCI bus or busses
may not even be the root busses of the system. On such systems you can
happily have multiple PCI root bridges each in their own address space
and each with their own idea of where 0xC0000 maps if anywhere.



  reply	other threads:[~2006-10-19 11:18 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-19  6:31 pci_fixup_video change blows up on sparc64 David Miller
2006-10-19  7:54 ` eiichiro.oiwa.nm
2006-10-19  8:37   ` pci_fixup_video " David Miller
2006-10-19  9:22     ` Alan Cox
2006-10-19  9:25       ` David Miller
2006-10-19 10:49         ` eiichiro.oiwa.nm
2006-10-19 22:32           ` David Miller
2006-10-20  2:41             ` Greg KH
2006-10-20  3:21               ` eiichiro.oiwa.nm
2006-10-20  4:03                 ` Greg KH
2006-10-20  4:28                   ` eiichiro.oiwa.nm
2006-10-20 14:20                   ` eiichiro.oiwa.nm
2006-10-20 19:31                     ` David Miller
2006-10-23  6:14                       ` eiichiro.oiwa.nm
2006-10-23  8:53                         ` David Miller
2006-10-23 18:39                           ` Greg KH
2006-10-23 21:02                             ` David Miller
2006-10-27 18:05                         ` patch pci-fix-pci_fixup_video-as-it-blows-up-on-sparc64.patch added to gregkh-2.6 tree gregkh
2006-10-19 10:01     ` Re[2]: pci_fixup_video change blows up on sparc64 eiichiro.oiwa.nm
2006-10-19 11:20       ` Alan Cox [this message]
2006-10-19 11:38         ` eiichiro.oiwa.nm
2006-10-19 18:03       ` Jesse Barnes
2006-10-19 22:58         ` David Miller
2006-10-20  2:57           ` eiichiro.oiwa.nm
2006-10-20  3:21             ` David Miller
2006-10-20  4:25               ` Re[2]: " eiichiro.oiwa.nm
2006-10-19 16:52     ` Jesse Barnes
2006-10-19 22:38       ` David Miller
2006-10-19 22:58         ` Jesse Barnes
2006-10-19 23:17           ` David Miller

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