powerpc/powernv: Implement MSI support for p5ioc2 PCIe

This implements support for MSIs on p5ioc2 PHBs. We only support
MSIs on the PCIe PHBs, not the PCI-X ones as the later hasn't been
properly verified in HW.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 6730a10d7369..d4dbc4950936 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -16,6 +16,16 @@ struct pnv_phb {
         void __iomem            *regs;
         spinlock_t              lock;
 
+#ifdef CONFIG_PCI_MSI
+        unsigned long           *msi_map;
+        unsigned int            msi_base;
+        unsigned int            msi_count;
+        unsigned int            msi_next;
+        unsigned int            msi32_support;
+#endif
+        int (*msi_setup)(struct pnv_phb *phb, struct pci_dev *dev,
+                         unsigned int hwirq, unsigned int is_64,
+                         struct msi_msg *msg);
         void (*dma_dev_setup)(struct pnv_phb *phb, struct pci_dev *pdev);
         void (*fixup_phb)(struct pci_controller *hose);
         u32 (*bdfn_to_pe)(struct pnv_phb *phb, struct pci_bus *bus, u32 devfn);