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1da177e4 LT |
1 | /* |
2 | * IBM PowerPC Virtual I/O Infrastructure Support. | |
3 | * | |
f38d87f5 SR |
4 | * Copyright (c) 2003 IBM Corp. |
5 | * Dave Engebretsen engebret@us.ibm.com | |
6 | * Santiago Leon santil@us.ibm.com | |
1da177e4 | 7 | * |
f38d87f5 SR |
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. | |
1da177e4 LT |
12 | */ |
13 | ||
f38d87f5 SR |
14 | #ifndef _ASM_POWERPC_VIO_H |
15 | #define _ASM_POWERPC_VIO_H | |
1da177e4 LT |
16 | |
17 | #include <linux/config.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/errno.h> | |
20 | #include <linux/device.h> | |
21 | #include <linux/dma-mapping.h> | |
fb120da6 | 22 | #include <linux/mod_devicetable.h> |
71d276d7 | 23 | |
1da177e4 | 24 | #include <asm/hvcall.h> |
1da177e4 | 25 | #include <asm/scatterlist.h> |
71d276d7 SR |
26 | |
27 | /* | |
1da177e4 LT |
28 | * Architecture-specific constants for drivers to |
29 | * extract attributes of the device using vio_get_attribute() | |
71d276d7 | 30 | */ |
1da177e4 LT |
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 | ||
1da177e4 LT |
42 | struct iommu_table; |
43 | ||
71d276d7 SR |
44 | /* |
45 | * The vio_dev structure is used to describe virtual I/O devices. | |
46 | */ | |
47 | struct vio_dev { | |
48 | struct iommu_table *iommu_table; /* vio_map_* uses this */ | |
49 | char *name; | |
50 | char *type; | |
51 | uint32_t unit_address; | |
52 | unsigned int irq; | |
53 | struct device dev; | |
54 | }; | |
1da177e4 | 55 | |
1da177e4 LT |
56 | struct vio_driver { |
57 | struct list_head node; | |
71d276d7 SR |
58 | const struct vio_device_id *id_table; |
59 | int (*probe)(struct vio_dev *dev, const struct vio_device_id *id); | |
60 | int (*remove)(struct vio_dev *dev); | |
34060104 | 61 | void (*shutdown)(struct vio_dev *dev); |
1da177e4 | 62 | unsigned long driver_data; |
1da177e4 LT |
63 | struct device_driver driver; |
64 | }; | |
65 | ||
71d276d7 SR |
66 | struct vio_bus_ops { |
67 | int (*match)(const struct vio_device_id *id, const struct vio_dev *dev); | |
68 | void (*unregister_device)(struct vio_dev *); | |
69 | void (*release_device)(struct device *); | |
70 | }; | |
71 | ||
72 | extern struct dma_mapping_ops vio_dma_ops; | |
73 | extern struct bus_type vio_bus_type; | |
74 | extern struct vio_dev vio_bus_device; | |
75 | ||
76 | extern int vio_register_driver(struct vio_driver *drv); | |
77 | extern void vio_unregister_driver(struct vio_driver *drv); | |
78 | ||
79 | extern struct vio_dev * __devinit vio_register_device(struct vio_dev *viodev); | |
80 | extern void __devinit vio_unregister_device(struct vio_dev *dev); | |
81 | ||
82 | extern int vio_bus_init(struct vio_bus_ops *); | |
83 | ||
84 | #ifdef CONFIG_PPC_PSERIES | |
85 | struct device_node; | |
86 | ||
87 | extern struct vio_dev * __devinit vio_register_device_node( | |
88 | struct device_node *node_vdev); | |
89 | extern struct vio_dev *vio_find_node(struct device_node *vnode); | |
90 | extern const void *vio_get_attribute(struct vio_dev *vdev, void *which, | |
91 | int *length); | |
92 | extern int vio_enable_interrupts(struct vio_dev *dev); | |
93 | extern int vio_disable_interrupts(struct vio_dev *dev); | |
94 | #endif | |
95 | ||
1da177e4 LT |
96 | static inline struct vio_driver *to_vio_driver(struct device_driver *drv) |
97 | { | |
98 | return container_of(drv, struct vio_driver, driver); | |
99 | } | |
100 | ||
1da177e4 LT |
101 | static inline struct vio_dev *to_vio_dev(struct device *dev) |
102 | { | |
103 | return container_of(dev, struct vio_dev, dev); | |
104 | } | |
105 | ||
f38d87f5 | 106 | #endif /* _ASM_POWERPC_VIO_H */ |