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/*
* IBM PowerPC Virtual I/O Infrastructure Support.
*
* Copyright (c) 2003 IBM Corp.
* Dave Engebretsen engebret@us.ibm.com
* Santiago Leon santil@us.ibm.com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ASM_VIO_H
#define _ASM_VIO_H
#include <linux/config.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <asm/hvcall.h>
#include <asm/scatterlist.h>
/*
* Architecture-specific constants for drivers to
* extract attributes of the device using vio_get_attribute()
*/
#define VETH_MAC_ADDR "local-mac-address"
#define VETH_MCAST_FILTER_SIZE "ibm,mac-address-filters"
/* End architecture-specific constants */
#define h_vio_signal(ua, mode) \
plpar_hcall_norets(H_VIO_SIGNAL, ua, mode)
#define VIO_IRQ_DISABLE 0UL
#define VIO_IRQ_ENABLE 1UL
struct iommu_table;
/*
* The vio_dev structure is used to describe virtual I/O devices.
*/
struct vio_dev {
struct iommu_table *iommu_table; /* vio_map_* uses this */
char *name;
char *type;
uint32_t unit_address;
unsigned int irq;
struct device dev;
};
struct vio_device_id {
char *type;
char *compat;
};
struct vio_driver {
struct list_head node;
char *name;
const struct vio_device_id *id_table;
int (*probe)(struct vio_dev *dev, const struct vio_device_id *id);
int (*remove)(struct vio_dev *dev);
unsigned long driver_data;
struct device_driver driver;
};
struct vio_bus_ops {
int (*match)(const struct vio_device_id *id, const struct vio_dev *dev);
void (*unregister_device)(struct vio_dev *);
void (*release_device)(struct device *);
};
extern struct dma_mapping_ops vio_dma_ops;
extern struct bus_type vio_bus_type;
extern struct vio_dev vio_bus_device;
extern int vio_register_driver(struct vio_driver *drv);
extern void vio_unregister_driver(struct vio_driver *drv);
extern struct vio_dev * __devinit vio_register_device(struct vio_dev *viodev);
extern void __devinit vio_unregister_device(struct vio_dev *dev);
extern int vio_bus_init(struct vio_bus_ops *);
#ifdef CONFIG_PPC_PSERIES
struct device_node;
extern struct vio_dev * __devinit vio_register_device_node(
struct device_node *node_vdev);
extern struct vio_dev *vio_find_node(struct device_node *vnode);
extern const void *vio_get_attribute(struct vio_dev *vdev, void *which,
int *length);
extern int vio_enable_interrupts(struct vio_dev *dev);
extern int vio_disable_interrupts(struct vio_dev *dev);
#endif
static inline struct vio_driver *to_vio_driver(struct device_driver *drv)
{
return container_of(drv, struct vio_driver, driver);
}
static inline struct vio_dev *to_vio_dev(struct device *dev)
{
return container_of(dev, struct vio_dev, dev);
}
#endif /* _ASM_VIO_H */
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