[PATCH v4 4/7] PCI: Add fwnode_handle to pci_sysdata

jakeo
2015-10-29T23:48:42Z

From: Jake Oshins <jakeo@microsoft.com>

This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.

Signed-off-by: Jake Oshins <jakeo@microsoft.com>
---
arch/x86/include/asm/pci.h | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 4625943..10213a1 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;
@@ -41,6 +44,14 @@ static inline int pci_proc_domain(struct pci_bus *bus)
}
#endif

+#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN
+static inline void *pci_fwnode(struct pci_bus *bus)
+{
+ struct pci_sysdata *sd = bus->sysdata;
+ return sd->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 */
--
1.9.1