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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>
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30
31#define VETH_MAC_ADDR "local-mac-address"
32#define VETH_MCAST_FILTER_SIZE "ibm,mac-address-filters"
33
34
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
42
43
44
45#define VIO_CMO_MIN_ENT 1562624
46
47extern struct bus_type vio_bus_type;
48
49struct iommu_table;
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54
55
56#define VIO_BASE_PFO_UA 0x50000000
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72
73struct vio_pfo_op {
74 u64 flags;
75 s64 in;
76 s64 inlen;
77 s64 out;
78 s64 outlen;
79 u64 csbcpb;
80 void *done;
81 unsigned long handle;
82 unsigned int timeout;
83 long hcall_err;
84};
85
86
87
88enum vio_dev_family {
89 VDEVICE,
90 PFO,
91};
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100
101struct vio_dev {
102 const char *name;
103 const char *type;
104 uint32_t unit_address;
105 uint32_t resource_id;
106 unsigned int irq;
107 struct {
108 size_t desired;
109 size_t entitled;
110 size_t allocated;
111 atomic_t allocs_failed;
112 } cmo;
113 enum vio_dev_family family;
114 struct device dev;
115};
116
117struct vio_driver {
118 const char *name;
119 const struct vio_device_id *id_table;
120 int (*probe)(struct vio_dev *dev, const struct vio_device_id *id);
121 int (*remove)(struct vio_dev *dev);
122
123
124
125 unsigned long (*get_desired_dma)(struct vio_dev *dev);
126 const struct dev_pm_ops *pm;
127 struct device_driver driver;
128};
129
130extern int __vio_register_driver(struct vio_driver *drv, struct module *owner,
131 const char *mod_name);
132
133
134
135#define vio_register_driver(driver) \
136 __vio_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
137extern void vio_unregister_driver(struct vio_driver *drv);
138
139extern int vio_cmo_entitlement_update(size_t);
140extern void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired);
141
142extern void __devinit vio_unregister_device(struct vio_dev *dev);
143
144extern int vio_h_cop_sync(struct vio_dev *vdev, struct vio_pfo_op *op);
145
146struct device_node;
147
148extern struct vio_dev *vio_register_device_node(
149 struct device_node *node_vdev);
150extern const void *vio_get_attribute(struct vio_dev *vdev, char *which,
151 int *length);
152#ifdef CONFIG_PPC_PSERIES
153extern struct vio_dev *vio_find_node(struct device_node *vnode);
154extern int vio_enable_interrupts(struct vio_dev *dev);
155extern int vio_disable_interrupts(struct vio_dev *dev);
156#else
157static inline int vio_enable_interrupts(struct vio_dev *dev)
158{
159 return 0;
160}
161#endif
162
163static inline struct vio_driver *to_vio_driver(struct device_driver *drv)
164{
165 return container_of(drv, struct vio_driver, driver);
166}
167
168static inline struct vio_dev *to_vio_dev(struct device *dev)
169{
170 return container_of(dev, struct vio_dev, dev);
171}
172
173#endif
174#endif
175