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| author | Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> | 2015-12-10 08:55:27 -0800 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2015-12-21 13:49:32 +0000 |
| commit | 471036b2b895789c2305428fd879006468e4a758 (patch) | |
| tree | afabc515637003b9b21dd69b105e021533869d56 /include/linux/pci.h | |
| parent | 9f9499ae8e6415cefc4fe0a96ad0e27864353c89 (diff) | |
| download | lwn-471036b2b895789c2305428fd879006468e4a758.tar.gz lwn-471036b2b895789c2305428fd879006468e4a758.zip | |
acpi: pci: Setup MSI domain for ACPI based pci devices
This patch introduces pci_msi_register_fwnode_provider() for irqchip
to register a callback, to provide a way to determine appropriate MSI
domain for a pci device.
It also introduces pci_host_bridge_acpi_msi_domain(), which returns
the MSI domain of the specified PCI host bridge with DOMAIN_BUS_PCI_MSI
bus token. Then, it is assigned to pci device.
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 6ae25aae88fd..d86378c226fb 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1946,6 +1946,16 @@ static inline struct irq_domain * pci_host_bridge_of_msi_domain(struct pci_bus *bus) { return NULL; } #endif /* CONFIG_OF */ +#ifdef CONFIG_ACPI +struct irq_domain *pci_host_bridge_acpi_msi_domain(struct pci_bus *bus); + +void +pci_msi_register_fwnode_provider(struct fwnode_handle *(*fn)(struct device *)); +#else +static inline struct irq_domain * +pci_host_bridge_acpi_msi_domain(struct pci_bus *bus) { return NULL; } +#endif + #ifdef CONFIG_EEH static inline struct eeh_dev *pci_dev_to_eeh_dev(struct pci_dev *pdev) { |