1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 /*
27  * Copyright 2012 Garrett D'Amore <garrett@damore.org>.  All rights reserved.
28  */
29 
30 #ifndef _SYS_DDI_IMPLFUNCS_H
31 #define	_SYS_DDI_IMPLFUNCS_H
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 #include <sys/obpdefs.h>
38 #include <sys/vnode.h>
39 #include <sys/types.h>
40 #include <sys/task.h>
41 #include <sys/project.h>
42 
43 #ifdef	_KERNEL
44 
45 /*
46  * Declare implementation functions that sunddi functions can call in order to
47  * perform their required task.  Each kernel architecture must provide them.
48  */
49 extern int i_ddi_bus_map(dev_info_t *dip, dev_info_t *rdip, ddi_map_req_t *mp,
50     off_t offset, off_t len, caddr_t *vaddrp);
51 extern int i_ddi_apply_range(dev_info_t *dip, dev_info_t *rdip,
52     struct regspec *rp);
53 extern struct regspec *i_ddi_rnumber_to_regspec(dev_info_t *dip, int rnumber);
54 extern int i_ddi_map_fault(dev_info_t *dip, dev_info_t *rdip,
55     struct hat *hat, struct seg *seg, caddr_t addr,
56     struct devpage *dp, pfn_t pfn, uint_t prot, uint_t lock);
57 
58 /*
59  * Implementation-specific memory allocation and de-allocation routines
60  */
61 extern int i_ddi_mem_alloc(dev_info_t *dip, ddi_dma_attr_t *attributes,
62     size_t length, int cansleep, int streaming,
63     ddi_device_acc_attr_t *accattrp, caddr_t *kaddrp,
64     size_t *real_length, ddi_acc_hdl_t *handlep);
65 extern void i_ddi_mem_free(caddr_t kaddr, ddi_acc_hdl_t *ap);
66 
67 extern int i_ddi_devi_get_ppa(dev_info_t *);
68 extern void i_ddi_devi_set_ppa(dev_info_t *, int);
69 
70 extern void i_ddi_devacc_to_hatacc(ddi_device_acc_attr_t *devaccp,
71     uint_t *hataccp);
72 extern void i_ddi_cacheattr_to_hatacc(uint_t flags, uint_t *hataccp);
73 extern boolean_t i_ddi_check_cache_attr(uint_t flags);
74 
75 /*
76  * Access and DMA handle fault set/clear routines
77  */
78 extern void i_ddi_acc_set_fault(ddi_acc_handle_t handle);
79 extern void i_ddi_acc_clr_fault(ddi_acc_handle_t handle);
80 extern void i_ddi_dma_set_fault(ddi_dma_handle_t handle);
81 extern void i_ddi_dma_clr_fault(ddi_dma_handle_t handle);
82 
83 /*
84  * Event-handling functions for rootnex.
85  * These provide the standard implementation of fault handling.
86  */
87 extern void i_ddi_rootnex_init_events(dev_info_t *);
88 extern int i_ddi_rootnex_get_eventcookie(dev_info_t *, dev_info_t *, char *,
89     ddi_eventcookie_t *);
90 extern int i_ddi_rootnex_add_eventcall(dev_info_t *, dev_info_t *,
91     ddi_eventcookie_t, void (*)(dev_info_t *, ddi_eventcookie_t, void *,
92     void *), void *, ddi_callback_id_t *);
93 extern int i_ddi_rootnex_remove_eventcall(dev_info_t *, ddi_callback_id_t);
94 extern int i_ddi_rootnex_post_event(dev_info_t *, dev_info_t *,
95     ddi_eventcookie_t, void *);
96 
97 /*
98  * Search and return properties from the PROM
99  */
100 extern int impl_ddi_bus_prop_op(dev_t, dev_info_t *, dev_info_t *,
101     ddi_prop_op_t, int, char *, caddr_t, int *);
102 
103 /*
104  * Copy an integer from PROM to native machine representation
105  */
106 extern int impl_ddi_prop_int_from_prom(uchar_t *intp, int n);
107 
108 extern int impl_ddi_sunbus_initchild(dev_info_t *);
109 extern void impl_ddi_sunbus_removechild(dev_info_t *);
110 
111 /*
112  * Implementation-specific access handle allocator and init. routines
113  */
114 extern ddi_acc_handle_t impl_acc_hdl_alloc(int (*waitfp)(caddr_t),
115     caddr_t arg);
116 extern void impl_acc_hdl_free(ddi_acc_handle_t handle);
117 extern ddi_acc_hdl_t *impl_acc_hdl_get(ddi_acc_handle_t handle);
118 extern void impl_acc_hdl_init(ddi_acc_hdl_t *hp);
119 
120 /*
121  * Access error handling support
122  */
123 extern void impl_acc_err_init(ddi_acc_hdl_t *);
124 extern int impl_dma_check(dev_info_t *, const void *, const void *,
125     const void *);
126 extern int i_ddi_ontrap(ddi_acc_handle_t);
127 extern void i_ddi_notrap(ddi_acc_handle_t);
128 extern int i_ddi_prot_trampoline(void);
129 extern int i_ddi_caut_trampoline(void);
130 
131 /*
132  * misc/bootdev entry points - these are private routines and subject
133  * to change
134  */
135 extern int i_devname_to_promname(char *dev_name, char *ret_buf, size_t);
136 extern int i_promname_to_devname(char *prom_name, char *ret_buf);
137 extern char *i_convert_boot_device_name(char *, char *, size_t *);
138 
139 /*
140  * Nodeid management
141  */
142 extern void impl_ddi_init_nodeid(void);
143 extern int impl_ddi_alloc_nodeid(int *);
144 extern int impl_ddi_take_nodeid(int, int);
145 extern void impl_ddi_free_nodeid(int);
146 
147 /*
148  * minorname/devtspectype conversions
149  */
150 extern char *i_ddi_devtspectype_to_minorname(dev_info_t *, dev_t, int);
151 extern int i_ddi_minorname_to_devtspectype(dev_info_t *, char *, dev_t *,
152     int *);
153 
154 /*
155  * Routines in ddi_v9_asm.s
156  */
157 extern int do_peek(size_t, void *, void *);
158 extern int do_poke(size_t, void *, void *);
159 extern void peek_fault(void);
160 extern void poke_fault(void);
161 extern int peekpoke_mem(ddi_ctl_enum_t, peekpoke_ctlops_t *);
162 
163 /*
164  * Helper functions
165  */
166 extern char *i_ddi_strdup(char *, uint_t);
167 extern void i_ddi_prop_list_delete(ddi_prop_t *);
168 extern ddi_prop_t *i_ddi_prop_list_dup(ddi_prop_t *, uint_t);
169 extern int i_ddi_load_drvconf(major_t);
170 extern int i_ddi_unload_drvconf(major_t);
171 extern ddi_node_state_t i_ddi_node_state(dev_info_t *);
172 extern int i_ddi_devi_attached(dev_info_t *);
173 extern void i_ddi_parse_name(char *, char **, char **, char **);
174 extern void i_ddi_set_node_state(dev_info_t *, ddi_node_state_t);
175 extern int i_ddi_detach_installed_driver(major_t, int);
176 extern void i_ddi_set_binding_name(dev_info_t *, char *);
177 extern void i_ddi_bind_devs(void);
178 extern int i_ddi_unbind_devs_by_alias(major_t, char *);
179 extern void i_ddi_unbind_devs(major_t);
180 extern ddi_prop_list_t *i_ddi_prop_list_create(ddi_prop_t *);
181 struct devnames;
182 extern void i_ddi_prop_list_hold(ddi_prop_list_t *, struct devnames *);
183 extern void i_ddi_prop_list_rele(ddi_prop_list_t *, struct devnames *);
184 extern ddi_prop_t *i_ddi_prop_search(dev_t, char *, uint_t, ddi_prop_t **);
185 extern int resolve_pathname(char *, dev_info_t **, dev_t *, int *);
186 extern int i_ddi_prompath_to_devfspath(char *, char *);
187 extern int i_ddi_attach_node_hierarchy(dev_info_t *);
188 extern dev_info_t *i_ddi_attach_pseudo_node(char *);
189 extern int i_ddi_attach_hw_nodes(char *);
190 extern int i_ddi_devs_attached(major_t);
191 extern int i_ddi_minor_node_count(dev_info_t *, const char *);
192 extern int ddi_is_pci_dip(dev_info_t *dip);
193 
194 /*
195  * Non-DDI functions: wrapper around mod_hold/rele_dev_by_major()
196  */
197 extern struct dev_ops *ddi_hold_driver(major_t);
198 extern void ddi_rele_driver(major_t);
199 
200 /*
201  * /etc/devices cache files management
202  */
203 extern void i_ddi_devices_init(void);
204 extern void i_ddi_read_devices_files(void);
205 extern void i_ddi_clean_devices_files(void);
206 
207 /*
208  * devid cache
209  */
210 extern void devid_cache_init(void);
211 extern void devid_cache_read(void);
212 extern void devid_cache_cleanup(void);
213 extern int i_ddi_devi_get_devid(dev_t, dev_info_t *, ddi_devid_t *);
214 extern int e_ddi_devid_discovery(ddi_devid_t);
215 extern int e_devid_cache_register(dev_info_t *, ddi_devid_t);
216 extern void e_devid_cache_unregister(dev_info_t *);
217 extern int e_devid_cache_to_devt_list(ddi_devid_t, char *, int *, dev_t **);
218 extern void e_devid_cache_free_devt_list(int, dev_t *);
219 
220 /*
221  * I/O retire persistent store
222  */
223 extern void retire_store_init(void);
224 extern void retire_store_read(void);
225 extern int e_ddi_retire_persist(char *);
226 extern int e_ddi_retire_unpersist(char *);
227 extern int e_ddi_device_retired(char *);
228 
229 /*
230  * Resource control functions to lock down device memory
231  */
232 extern int i_ddi_incr_locked_memory(proc_t *, rctl_qty_t);
233 extern void i_ddi_decr_locked_memory(proc_t *, rctl_qty_t);
234 
235 /*
236  * Direct I/O support functions
237  */
238 extern void translate_devid(dev_info_t *dip);
239 
240 #endif	/* _KERNEL */
241 
242 #ifdef	__cplusplus
243 }
244 #endif
245 
246 #endif	/* _SYS_DDI_IMPLFUNCS_H */
247