Hello Bjorn,
thank you very much for the patch.
I tested it; it works.
(typing mistake: it must read PCI_COMMAND_MEMORY instead of
PCI_COMMAND_MEM at one location;
some hunks of the patch couldn't be applied automatically on Kernel
3.2.23 because some comments in the contexts are different)
The dmesg output:
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.2.0-3-mckinley (Debian 3.2.23-1)
(debian-kernel@xxxxxxxxxxxxxxxx) (gcc version 4.6.3 (Debian 4.6.3-8) )
#1 SMP Fri Sep 28 21:57:11 CEST 2012
...
[ 0.065510] pci 0000:00:1f.1: [8086:24cb] type 0 class 0x000101
[ 0.065524] pci 0000:00:1f.1: reg 10: [io 0x0000-0x0007]
[ 0.065535] pci 0000:00:1f.1: reg 14: [io 0x0000-0x0003]
[ 0.065546] pci 0000:00:1f.1: reg 18: [io 0x0000-0x0007]
[ 0.065556] pci 0000:00:1f.1: reg 1c: [io 0x0000-0x0003]
[ 0.065567] pci 0000:00:1f.1: reg 20: [io 0x1000-0x100f]
[ 0.065578] pci 0000:00:1f.1: reg 24: [mem 0x00000000-0x000003ff unset]
...
[ 1.391380] libata version 3.00 loaded.
[ 1.391922] ata_piix 0000:00:1f.1: version 2.13
[ 1.391938] ata_piix 0000:00:1f.1: can't derive routing for PCI INT A
[ 1.392493] scsi0 : ata_piix
[ 1.392886] scsi1 : ata_piix
[ 1.393018] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x1000 irq 34
[ 1.393066] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x1008 irq 33
[ 1.557756] ata1.00: ATAPI: HL-DT-ST DVDRAM GSA-T40N, JR03, max UDMA/33
[ 1.573616] ata1.00: configured for UDMA/33
[ 1.579147] scsi 0:0:0:0: CD-ROM HL-DT-ST DVDRAM
GSA-T40N JR03 PQ: 0 ANSI: 5
[ 1.590806] sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw
xa/form2 cdda tray
[ 1.590872] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 1.591272] sr 0:0:0:0: Attached scsi CD-ROM sr0
[ 1.593910] sr 0:0:0:0: Attached scsi generic sg0 type 5
...
How is the chance to get this patch or a similar one into linux-next?
On x86, Windows normally doesn't reconfigure PCI devices unless it
finds a problem with the configuration done by the BIOS. I suspect
it works similarly on ia64. I would guess that Windows noticed that
the MEM bit was not set, and therefore ignored the MEM BAR contents.
Since I have the four Windows versions 'for Itanium Based Systems' on
that box as well (XP, Server 2003, 2008, 2008 R2), I can tell you more:
The Device Manager shows a memory range FFBFFC00-FFBFFFFF for the
"Intel 82801DB Ultra ATA Storage Controller-24CB" - on any of these
Windows versions.
Stephan
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