Matthew Wilcox f598282f51 PCI: Fix the NIU MSI-X problem in a better way ... The previous MSI-X fix (8d18101853) had three bugs. First, it didn't move the write that disabled the vector. This led to writing garbage to the MSI-X vector (spotted by Michael Ellerman). It didn't fix the PCI resume case, and it had a race window where the device could generate an interrupt before the MSI-X registers were programmed (leading to a DMA to random addresses). Fortunately, the MSI-X capability has a bit to mask all the vectors. By setting this bit instead of clearing the enable bit, we can ensure the device will not generate spurious interrupts. Since the capability is now enabled, the NIU device will not have a problem with the reads and writes to the MSI-X registers being in the original order in the code. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>		2009-06-19 15:11:39 -07:00
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hotplug
pcie
.gitignore
access.c
bus.c
dmar.c
hotplug-pci.c
hotplug.c
htirq.c
intel-iommu.c
intr_remapping.c
intr_remapping.h
iov.c
iova.c
irq.c
Kconfig
Makefile
msi.c	PCI: Fix the NIU MSI-X problem in a better way	2009-06-19 15:11:39 -07:00
msi.h
pci-acpi.c
pci-driver.c
pci-stub.c
pci-sysfs.c
pci.c
pci.h
probe.c
proc.c
quirks.c
remove.c
rom.c
search.c
setup-bus.c
setup-irq.c
setup-res.c
slot.c
syscall.c