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authorJake Oshins <jakeo@microsoft.com>2016-02-16 21:56:21 +0000
committerBjorn Helgaas <bhelgaas@google.com>2016-02-16 16:48:11 -0600
commit92016ba5c1d71fbe4e9952df518b5386f2a0556b (patch)
treefb7d4f6f944c1a91a55b340865e7f134ad2d70e8 /arch/x86/include/asm/pci.h
parent92e963f50fc74041b5e9e744c330dca48e04f08d (diff)
PCI: Add fwnode_handle to x86 pci_sysdata
Add an fwnode_handle to the x86 struct pci_sysdata, which will be used to locate an IRQ domain associated with a root PCI bus. [bhelgaas: changelog] Signed-off-by: Jake Oshins <jakeo@microsoft.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'arch/x86/include/asm/pci.h')
-rw-r--r--arch/x86/include/asm/pci.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 462594320d39..6fc3c7c554b2 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -20,6 +20,9 @@ struct pci_sysdata {
#ifdef CONFIG_X86_64
void *iommu; /* IOMMU private data */
#endif
+#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN
+ void *fwnode; /* IRQ domain for MSI assignment */
+#endif
};
extern int pci_routeirq;
@@ -32,6 +35,7 @@ extern int noioapicreroute;
static inline int pci_domain_nr(struct pci_bus *bus)
{
struct pci_sysdata *sd = bus->sysdata;
+
return sd->domain;
}
@@ -41,6 +45,17 @@ static inline int pci_proc_domain(struct pci_bus *bus)
}
#endif
+#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN
+static inline void *_pci_root_bus_fwnode(struct pci_bus *bus)
+{
+ struct pci_sysdata *sd = bus->sysdata;
+
+ return sd->fwnode;
+}
+
+#define pci_root_bus_fwnode _pci_root_bus_fwnode
+#endif
+
/* Can be used to override the logic in pci_scan_bus for skipping
already-configured bus numbers - to be used for buggy BIOSes
or architectures with incomplete PCI setup by the loader */