Jean-Philippe Brucker 85aabbd7b3 PCI/MSI: Fix MSIs for generic hosts that use device-tree's "msi-map" ... Since commit 9ec37efb87 ("PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domains"), platforms that rely on the "msi-map" device-tree property don't get MSIs anymore. On the Arm Fast Model for example [1], the host bridge doesn't have a "msi-parent" property since it doesn't itself generate MSIs, and so doesn't get a MSI domain. It has an "msi-map" property instead to describe MSI controllers of child devices. As a result, due to the new msi_domain check in pci_register_host_bridge(), the whole bus gets PCI_BUS_FLAGS_NO_MSI. Check whether the root complex has an "msi-map" property before giving up on MSIs. [1] arch/arm64/boot/dts/arm/fvp-base-revc.dts Fixes: 9ec37efb87 ("PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domains") Link: https://lore.kernel.org/r/20210510173129.750496-1-jean-philippe@linaro.org Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Marc Zyngier <maz@kernel.org>		2021-05-25 18:37:37 -05:00
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controller	pci-v5.13-changes	2021-05-05 13:24:11 -07:00
endpoint	Merge branch 'remotes/lorenzo/pci/endpoint'	2021-05-04 10:43:27 -05:00
hotplug	more s390 updates for 5.13 merge window	2021-05-06 14:39:50 -07:00
pcie	Merge branch 'pci/kernel-doc'	2021-05-04 10:43:24 -05:00
switch
access.c
ats.c
bus.c
ecam.c
host-bridge.c
iov.c
irq.c
Kconfig
Makefile
mmap.c
msi.c	PCI/MSI: Document the various ways of ending up with NO_MSI	2021-04-20 14:11:22 +01:00
of.c	PCI/MSI: Fix MSIs for generic hosts that use device-tree's "msi-map"	2021-05-25 18:37:37 -05:00
p2pdma.c
pci-acpi.c
pci-bridge-emul.c
pci-bridge-emul.h
pci-driver.c
pci-label.c	PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions	2021-04-29 10:07:31 -05:00
pci-mid.c
pci-pf-stub.c
pci-stub.c
pci-sysfs.c	pci-v5.13-changes	2021-05-05 13:24:11 -07:00
pci.c	pci-v5.13-changes	2021-05-05 13:24:11 -07:00
pci.h	pci-v5.13-changes	2021-05-05 13:24:11 -07:00
probe.c	PCI/MSI: Fix MSIs for generic hosts that use device-tree's "msi-map"	2021-05-25 18:37:37 -05:00
proc.c
quirks.c	Merge branch 'remotes/lorenzo/pci/msi'	2021-05-04 10:43:30 -05:00
remove.c	PCI/sysfs: Convert "reset" to static attribute	2021-04-27 17:53:20 -05:00
rom.c
search.c
setup-bus.c
setup-irq.c
setup-res.c
slot.c
syscall.c
vc.c
vpd.c	Merge branch 'pci/sysfs'	2021-05-04 10:43:23 -05:00
xen-pcifront.c