1
linux/drivers/pci
Neil Horman 49c2fa08a7 PCI: Update MCP55 quirk to not affect non HyperTransport variants
I wrote this quirk awhile ago to properly setup MCP55 chips on hypertransport
busses so that interrupts reached whatever cpu happend to boot the kdump kernel.
while that works well, it was recently shown to me that a a non-hypertransport
variant of the MCP55 exists, and on those system the register that this quirk
manipulates causes hangs if you write to it.  Since the quirk was only meant to
handle errors found on MCP55 chips that have a HT interface, this patch adds a
filter to make sure the chip is an HT capable before making the needed register
adjustment.  This lets the broken MCP55s work with kdump while not breaking the
non-HT variants.

Resolves https://bugzilla.kernel.org/show_bug.cgi?id=23952

Tested successfully by the reporter and myself.

Cc: stable@kernel.org
Reported-by: Mathieu Bérard <mathieu@mberard.eu>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-12-16 14:07:31 -08:00
..
hotplug PCI hotplug: ibmphp: Add check to prevent reading beyond mapped area 2010-11-11 09:34:31 -08:00
pcie Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2010-10-28 11:59:52 -07:00
.gitignore
access.c PCI: output FW warning in pci_read/write_vpd 2010-05-18 15:00:25 -07:00
bus.c PCI: fix pci_bus_alloc_resource() hang, prefer positive decode 2010-11-12 09:16:08 -08:00
dmar.c Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 14:23:48 -07:00
hotplug-pci.c
hotplug.c
htirq.c ht: Convert to new irq_chip functions 2010-10-12 16:53:37 +02:00
intel-iommu.c Merge git://git.infradead.org/iommu-2.6 2010-09-27 12:25:10 -07:00
intr_remapping.c x86: Speed up the irq_remapped check in hot pathes 2010-10-12 16:53:42 +02:00
intr_remapping.h
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 PCI: fix pci_resource_alignment prototype 2010-09-09 13:41:25 -07:00
iova.c
irq.c
Kconfig xen-pcifront: Xen PCI frontend driver. 2010-10-18 10:49:37 -04:00
Makefile pci root complex: support for tile architecture 2010-11-24 13:13:49 -05:00
msi.c msi: Introduce default_[teardown|setup]_msi_irqs with fallback. 2010-10-18 10:49:33 -04:00
msi.h PCI: add PCI_MSIX_TABLE/PBA defines 2010-10-17 20:03:03 -07:00
pci-acpi.c Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-08-07 17:08:30 -07:00
pci-driver.c PCI: change device runtime PM settings for probe and remove 2010-07-30 09:29:09 -07:00
pci-label.c PCI: update for owner removal from struct device_attribute 2010-08-04 14:23:55 -07:00
pci-stub.c
pci-sysfs.c PCI: fix offset check for sysfs mmapped files 2010-11-16 09:15:39 -08:00
pci.c PCI: read current power state at enable time 2010-11-11 09:38:14 -08:00
pci.h PCI: fix size checks for mmap() on /proc/bus/pci files 2010-11-11 09:34:32 -08:00
probe.c PCI: log vendor/device ID always 2010-10-17 20:03:05 -07:00
proc.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
quirks.c PCI: Update MCP55 quirk to not affect non HyperTransport variants 2010-12-16 14:07:31 -08:00
remove.c
rom.c
search.c PCI: use for_each_pci_dev() 2010-07-30 09:47:22 -07:00
setup-bus.c PCI hotplug: make sure child bridges are enabled at hotplug time 2010-07-30 09:29:16 -07:00
setup-irq.c PCI: use for_each_pci_dev() 2010-07-30 09:47:22 -07:00
setup-res.c PCI: fix message typo 2010-10-17 20:03:05 -07:00
slot.c PCI: bus speed strings should be const 2010-08-31 15:28:00 -07:00
syscall.c
vpd.c pci: Add helper to search for VPD keywords 2010-02-28 00:43:33 -08:00
xen-pcifront.c xen-pcifront: fix PCI reference leak 2010-11-08 11:41:15 -05:00