PCI: Add IRQ mapping function pointers to pci_host_bridge struct

Matthew Minter · bjorn-helgaas · commit 3aa8a41e0bf5 · 2017-07-02T16:14:28.000-05:00
In order to defer IRQ assignment arches must be able to register functions
to map and swizzle interrupts.  These registered functions are stored in
the pci_host_bridge struct.

Signed-off-by: Matthew Minter &lt;matt@masarand.com&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
diff --git a/include/linux/pci.h b/include/linux/pci.h
@@ -432,6 +432,8 @@ struct pci_host_bridge {
 	void *sysdata;
 	int busnr;
 	struct list_head windows;	/* resource_entry */
+	u8 (*swizzle_irq)(struct pci_dev *, u8 *); /* platform IRQ swizzler */
+	int (*map_irq)(const struct pci_dev *, u8, u8);
 	void (*release_fn)(struct pci_host_bridge *);
 	void *release_data;
 	struct msi_controller *msi;
