a4bbcac11d
The LS7A chipset can be used as part of a PCIe Root Complex with Loongson-3C6000 and similar CPUs. In this case, DEV_LS7A_PCIE_PORT5 has a PCI_CLASS_BRIDGE_HOST class code, and it is a Type 0 Function whose config space provides access to Root Complex registers. The DEV_LS7A_PCIE_PORT5 has an MSI Capability, and its MSI Enable bit must be set before other devices below the Root Complex can use MSI. This is not the standard PCI behavior of MSI Enable, so the normal PCI MSI code does not set it. Set the DEV_LS7A_PCIE_PORT5 MSI Enable bit via a quirk so other devices below the Root Complex can use MSI. [kwilczynski: exit early to reduce indentation; commit log] Link: https://lore.kernel.org/linux-pci/20240612065315.2048110-1-chenhuacai@loongson.cn Signed-off-by: Sheng Wu <wusheng@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> [bhelgaas: commit log] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org |
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controller | ||
endpoint | ||
hotplug | ||
msi | ||
pcie | ||
switch | ||
access.c | ||
ats.c | ||
bus.c | ||
devres.c | ||
doe.c | ||
ecam.c | ||
host-bridge.c | ||
iomap.c | ||
iov.c | ||
irq.c | ||
Kconfig | ||
Makefile | ||
mmap.c | ||
of_property.c | ||
of.c | ||
p2pdma.c | ||
pci-acpi.c | ||
pci-bridge-emul.c | ||
pci-bridge-emul.h | ||
pci-driver.c | ||
pci-label.c | ||
pci-mid.c | ||
pci-pf-stub.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-res.c | ||
slot.c | ||
syscall.c | ||
vc.c | ||
vgaarb.c | ||
vpd.c | ||
xen-pcifront.c |