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556ab45f9a
linux/drivers/pci
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Dan Williams 556ab45f9a ioat2: catch and recover from broken vtd configurations v6 
On some platforms (MacPro3,1) the BIOS assigns the ioatdma device to the
incorrect iommu causing faults when the driver initializes.  Add a quirk
to catch this misconfiguration and try falling back to untranslated
operation (which works in the MacPro3,1 case).

Assuming there are other platforms with misconfigured iommus teach the
ioatdma driver to treat initialization failures as non-fatal (just fail
the driver load and emit a warning instead of triggering a BUG_ON).

This can be classified as a boot regression since 2.6.32 on affected
platforms since the ioatdma module did not autoload prior to that
kernel.

Cc: <stable@kernel.org>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Reported-by: Chris Li <lkml@chrisli.org>
Tested-by: Chris Li <lkml@chrisli.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-08-04 14:18:17 -07:00
..
hotplug PCI: hotplug/cpqphp, fix NULL dereference 2010-06-11 13:10:21 -07:00
pcie Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-05-28 14:42:18 -07:00
.gitignore
access.c PCI: output FW warning in pci_read/write_vpd 2010-05-18 15:00:25 -07:00
bus.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dmar.c Merge git://git.infradead.org/iommu-2.6 2010-05-21 17:25:01 -07:00
hotplug-pci.c
hotplug.c
htirq.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
intel-iommu.c ioat2: catch and recover from broken vtd configurations v6 2010-08-04 14:18:17 -07:00
intr_remapping.c Merge git://git.infradead.org/iommu-2.6 2010-05-21 17:25:01 -07:00
intr_remapping.h intr-remap: generic support for remapping HPET MSIs 2009-08-27 23:33:20 +02:00
ioapic.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
iov.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
iova.c intel-iommu: Remove superfluous iova_alloc_lock from IOVA code 2009-07-15 08:17:02 +01:00
irq.c
Kconfig PCI: change PCI_MSI help text to recommend enabling 2010-05-11 12:01:10 -07:00
Makefile microblaze: Enable PCI, missing files 2010-03-11 14:04:27 +01:00
msi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
msi.h PCI MSI: shorten PCI_MSIX_ENTRY_* symbol names 2009-06-29 12:15:19 -07:00
pci-acpi.c Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-03-01 10:36:22 -08:00
pci-driver.c PCI PM: Run-time callbacks for PCI bus type 2010-02-22 16:21:19 -08:00
pci-stub.c PCI: pci-stub: add pci_stub.ids parameter 2009-09-09 13:44:34 -07:00
pci-sysfs.c Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/" 2010-06-11 13:08:37 -07:00
pci.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2010-05-21 18:58:52 -07:00
pci.h PCI: make bitfield unsigned 2010-05-11 10:07:20 +02:00
probe.c ACPI, APEI, PCIE AER, use general HEST table parsing in AER firmware_first setup 2010-05-19 22:40:14 -04:00
proc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
quirks.c ahci: add pci quirk for JMB362 2010-06-07 16:03:10 -04:00
remove.c PCI: eliminate redundant pci_stop_dev() call from pci_destroy_dev() 2009-06-11 12:04:19 -07:00
rom.c PCI: fix rom.c kernel-doc warning 2009-02-13 12:01:56 -08:00
search.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
setup-bus.c Revert "PCI: update bridge resources to get more big ranges in PCI assign unssigned" 2010-05-12 18:39:45 -07:00
setup-irq.c
setup-res.c PCI: change resource collision messages from KERN_ERR to KERN_INFO 2010-06-11 13:08:14 -07:00
slot.c Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/" 2010-06-11 13:08:37 -07:00
syscall.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
vpd.c pci: Add helper to search for VPD keywords 2010-02-28 00:43:33 -08:00