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