v4.19.13 snapshot.
diff --git a/include/linux/ioc3.h b/include/linux/ioc3.h
new file mode 100644
index 0000000..38b286e
--- /dev/null
+++ b/include/linux/ioc3.h
@@ -0,0 +1,93 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 2005 Stanislaw Skowronek <skylark@linux-mips.org>
+ */
+
+#ifndef _LINUX_IOC3_H
+#define _LINUX_IOC3_H
+
+#include <asm/sn/ioc3.h>
+
+#define IOC3_MAX_SUBMODULES 32
+
+#define IOC3_CLASS_NONE 0
+#define IOC3_CLASS_BASE_IP27 1
+#define IOC3_CLASS_BASE_IP30 2
+#define IOC3_CLASS_MENET_123 3
+#define IOC3_CLASS_MENET_4 4
+#define IOC3_CLASS_CADDUO 5
+#define IOC3_CLASS_SERIAL 6
+
+/* One of these per IOC3 */
+struct ioc3_driver_data {
+ struct list_head list;
+ int id; /* IOC3 sequence number */
+ /* PCI mapping */
+ unsigned long pma; /* physical address */
+ struct ioc3 __iomem *vma; /* pointer to registers */
+ struct pci_dev *pdev; /* PCI device */
+ /* IRQ stuff */
+ int dual_irq; /* set if separate IRQs are used */
+ int irq_io, irq_eth; /* IRQ numbers */
+ /* GPIO magic */
+ spinlock_t gpio_lock;
+ unsigned int gpdr_shadow;
+ /* NIC identifiers */
+ char nic_part[32];
+ char nic_serial[16];
+ char nic_mac[6];
+ /* submodule set */
+ int class;
+ void *data[IOC3_MAX_SUBMODULES]; /* for submodule use */
+ int active[IOC3_MAX_SUBMODULES]; /* set if probe succeeds */
+ /* is_ir_lock must be held while
+ * modifying sio_ie values, so
+ * we can be sure that sio_ie is
+ * not changing when we read it
+ * along with sio_ir.
+ */
+ spinlock_t ir_lock; /* SIO_IE[SC] mod lock */
+};
+
+/* One per submodule */
+struct ioc3_submodule {
+ char *name; /* descriptive submodule name */
+ struct module *owner; /* owning kernel module */
+ int ethernet; /* set for ethernet drivers */
+ int (*probe) (struct ioc3_submodule *, struct ioc3_driver_data *);
+ int (*remove) (struct ioc3_submodule *, struct ioc3_driver_data *);
+ int id; /* assigned by IOC3, index for the "data" array */
+ /* IRQ stuff */
+ unsigned int irq_mask; /* IOC3 IRQ mask, leave clear for Ethernet */
+ int reset_mask; /* non-zero if you want the ioc3.c module to reset interrupts */
+ int (*intr) (struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
+ /* private submodule data */
+ void *data; /* assigned by submodule */
+};
+
+/**********************************
+ * Functions needed by submodules *
+ **********************************/
+
+#define IOC3_W_IES 0
+#define IOC3_W_IEC 1
+
+/* registers a submodule for all existing and future IOC3 chips */
+extern int ioc3_register_submodule(struct ioc3_submodule *);
+/* unregisters a submodule */
+extern void ioc3_unregister_submodule(struct ioc3_submodule *);
+/* enables IRQs indicated by irq_mask for a specified IOC3 chip */
+extern void ioc3_enable(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
+/* ackowledges specified IRQs */
+extern void ioc3_ack(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
+/* disables IRQs indicated by irq_mask for a specified IOC3 chip */
+extern void ioc3_disable(struct ioc3_submodule *, struct ioc3_driver_data *, unsigned int);
+/* atomically sets GPCR bits */
+extern void ioc3_gpcr_set(struct ioc3_driver_data *, unsigned int);
+/* general ireg writer */
+extern void ioc3_write_ireg(struct ioc3_driver_data *idd, uint32_t value, int reg);
+
+#endif