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Diffstat (limited to 'include/asm-ppc64/vio.h')
| -rw-r--r-- | include/asm-ppc64/vio.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/include/asm-ppc64/vio.h b/include/asm-ppc64/vio.h new file mode 100644 index 00000000000..20cd98ee633 --- /dev/null +++ b/include/asm-ppc64/vio.h @@ -0,0 +1,103 @@ +/* + * 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/prom.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 vio_dev; +struct vio_driver; +struct vio_device_id; +struct iommu_table; + +int vio_register_driver(struct vio_driver *drv); +void vio_unregister_driver(struct vio_driver *drv); + +#ifdef CONFIG_PPC_PSERIES +struct vio_dev * __devinit vio_register_device_node( + struct device_node *node_vdev); +#endif +void __devinit vio_unregister_device(struct vio_dev *dev); +struct vio_dev *vio_find_node(struct device_node *vnode); + +const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length); +int vio_get_irq(struct vio_dev *dev); +int vio_enable_interrupts(struct vio_dev *dev); +int vio_disable_interrupts(struct vio_dev *dev); + +extern struct dma_mapping_ops vio_dma_ops; + +extern struct bus_type vio_bus_type; + +struct vio_device_id { + char *type; + char *compat; +}; + +struct vio_driver { + struct list_head node; + char *name; + const struct vio_device_id *id_table; /* NULL if wants all devices */ + int (*probe) (struct vio_dev *dev, const struct vio_device_id *id); /* New device inserted */ + int (*remove) (struct vio_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ + unsigned long driver_data; + + struct device_driver driver; +}; + +static inline struct vio_driver *to_vio_driver(struct device_driver *drv) +{ + return container_of(drv, struct vio_driver, driver); +} + +/* + * 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; +}; + +static inline struct vio_dev *to_vio_dev(struct device *dev) +{ + return container_of(dev, struct vio_dev, dev); +} + +#endif /* _ASM_VIO_H */ |