1/* 2 * IBM PowerPC Virtual I/O Infrastructure Support. 3 * 4 * Copyright (c) 2003 IBM Corp. 5 * Dave Engebretsen engebret@us.ibm.com 6 * Santiago Leon santil@us.ibm.com 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * as published by the Free Software Foundation; either version 11 * 2 of the License, or (at your option) any later version. 12 */ 13 14#ifndef _ASM_POWERPC_VIO_H 15#define _ASM_POWERPC_VIO_H 16#ifdef __KERNEL__ 17 18#include <linux/init.h> 19#include <linux/errno.h> 20#include <linux/device.h> 21#include <linux/dma-mapping.h> 22#include <linux/mod_devicetable.h> 23 24#include <asm/hvcall.h> 25#include <asm/scatterlist.h> 26 27/* 28 * Architecture-specific constants for drivers to 29 * extract attributes of the device using vio_get_attribute() 30 */ 31#define VETH_MAC_ADDR "local-mac-address" 32#define VETH_MCAST_FILTER_SIZE "ibm,mac-address-filters" 33 34/* End architecture-specific constants */ 35 36#define h_vio_signal(ua, mode) \ 37 plpar_hcall_norets(H_VIO_SIGNAL, ua, mode) 38 39#define VIO_IRQ_DISABLE 0UL 40#define VIO_IRQ_ENABLE 1UL 41 42struct iommu_table; 43 44/* 45 * The vio_dev structure is used to describe virtual I/O devices. 46 */ 47struct vio_dev { 48 const char *name; 49 const char *type; 50 uint32_t unit_address; 51 unsigned int irq; 52 struct device dev; 53}; 54 55struct vio_driver { 56 struct list_head node; 57 const struct vio_device_id *id_table; 58 int (*probe)(struct vio_dev *dev, const struct vio_device_id *id); 59 int (*remove)(struct vio_dev *dev); 60 void (*shutdown)(struct vio_dev *dev); 61 unsigned long driver_data; 62 struct device_driver driver; 63}; 64 65extern struct dma_mapping_ops vio_dma_ops; 66extern struct bus_type vio_bus_type; 67 68extern int vio_register_driver(struct vio_driver *drv); 69extern void vio_unregister_driver(struct vio_driver *drv); 70 71extern void __devinit vio_unregister_device(struct vio_dev *dev); 72 73struct device_node; 74 75extern struct vio_dev * __devinit vio_register_device_node( 76 struct device_node *node_vdev); 77extern const void *vio_get_attribute(struct vio_dev *vdev, char *which, 78 int *length); 79#ifdef CONFIG_PPC_PSERIES 80extern struct vio_dev *vio_find_node(struct device_node *vnode); 81extern int vio_enable_interrupts(struct vio_dev *dev); 82extern int vio_disable_interrupts(struct vio_dev *dev); 83#endif 84 85static inline struct vio_driver *to_vio_driver(struct device_driver *drv) 86{ 87 return container_of(drv, struct vio_driver, driver); 88} 89 90static inline struct vio_dev *to_vio_dev(struct device *dev) 91{ 92 return container_of(dev, struct vio_dev, dev); 93} 94 95#endif /* __KERNEL__ */ 96#endif /* _ASM_POWERPC_VIO_H */ 97