From: David Miller <davem@davemloft.net>
To: eiichiro.oiwa.nm@hitachi.com
Cc: alan@redhat.com, jesse.barnes@intel.com, greg@kroah.com,
linux-kernel@vger.kernel.org
Subject: pci_fixup_video change blows up on sparc64
Date: Wed, 18 Oct 2006 23:31:02 -0700 (PDT) [thread overview]
Message-ID: <20061018.233102.74754142.davem@davemloft.net> (raw)
This change in 2.6.19-GIT:
commit b5e4efe7e061ff52ac97b9fa45acca529d8daeea
Author: eiichiro.oiwa.nm@hitachi.com <eiichiro.oiwa.nm@hitachi.com>
Date: Thu Sep 28 13:55:47 2006 +0900
PCI: Turn pci_fixup_video into generic for embedded VGA
breaks sparc64 with ATI Radeon and ATY128 cards.
The problem is that there is no system rom at 0xc0000 on sparc64, and
therefore nothing copies the VGA bios of the graphics card there on
bootup. Therefore all of this code is bogus and will just result in
bus errors when the Radeon or ATY128 driver tries to pci_map_rom() and
read the graphics card ROM. Nothing will respond to accesses at the
0xc0000 region on sparc64.
The existence of a primary video ROM at 0xc0000 is quite platform
specific. If some non-x86 systems have this too, that's great.
However, assuming all systems do is not correct.
next reply other threads:[~2006-10-19 6:31 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-19 6:31 David Miller [this message]
2006-10-19 7:54 ` Re:pci_fixup_video change blows up on sparc64 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
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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