![]() With the number of PCI bus resources increased to 8, we can handle the subtractive decode PCI-PCI bridge like a normal bridge, taking into account standard PCI-PCI bridge windows (resources 0-2). This helps to avoid problems with peer-to-peer DMA behind such bridges, poor performance for MMIO ranges outside bridge windows and prefetchable vs. non-prefetchable memory issues. To reflect the fact that such bridges do forward all addresses to the secondary bus (transparency), remaining bus resources 3-7 are linked to resources 0-4 of the primary bus. These resources will be used as fallback by resource management code if allocation from standard bridge windows fails for some reason. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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.. | ||
hotplug | ||
pcie | ||
access.c | ||
bus.c | ||
gen-devlist.c | ||
hotplug.c | ||
Kconfig | ||
Makefile | ||
msi.c | ||
msi.h | ||
names.c | ||
pci-acpi.c | ||
pci-driver.c | ||
pci-sysfs.c | ||
pci.c | ||
pci.h | ||
pci.ids | ||
probe.c | ||
proc.c | ||
quirks.c | ||
remove.c | ||
rom.c | ||
search.c | ||
setup-bus.c | ||
setup-irq.c | ||
setup-res.c | ||
syscall.c |