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 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_DDI_IMPLFUNCS_H 28 #define _SYS_DDI_IMPLFUNCS_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <sys/obpdefs.h> 37 #include <sys/vnode.h> 38 #include <sys/types.h> 39 #include <sys/task.h> 40 #include <sys/project.h> 41 42 #ifdef _KERNEL 43 44 /* 45 * Declare implementation functions that sunddi functions can 46 * call in order to perform their required task. Each kernel 47 * architecture must provide them. 48 */ 49 50 int 51 i_ddi_bus_map(dev_info_t *dip, dev_info_t *rdip, ddi_map_req_t *mp, 52 off_t offset, off_t len, caddr_t *vaddrp); 53 54 int 55 i_ddi_apply_range(dev_info_t *dip, dev_info_t *rdip, struct regspec *rp); 56 57 struct regspec * 58 i_ddi_rnumber_to_regspec(dev_info_t *dip, int rnumber); 59 60 61 int 62 i_ddi_map_fault(dev_info_t *dip, dev_info_t *rdip, 63 struct hat *hat, struct seg *seg, caddr_t addr, 64 struct devpage *dp, pfn_t pfn, uint_t prot, uint_t lock); 65 66 ddi_regspec_t 67 i_ddi_get_regspec(dev_info_t *dip, dev_info_t *rdip, uint_t rnumber, 68 off_t offset, off_t len); 69 70 /* 71 * Implementation specific memory allocation and de-allocation routines. 72 */ 73 int 74 i_ddi_mem_alloc(dev_info_t *dip, ddi_dma_attr_t *attributes, 75 size_t length, int cansleep, int streaming, 76 ddi_device_acc_attr_t *accattrp, caddr_t *kaddrp, 77 size_t *real_length, ddi_acc_hdl_t *handlep); 78 79 int 80 i_ddi_mem_alloc_lim(dev_info_t *dip, ddi_dma_lim_t *limits, 81 size_t length, int cansleep, int streaming, 82 ddi_device_acc_attr_t *accattrp, caddr_t *kaddrp, 83 uint_t *real_length, ddi_acc_hdl_t *handlep); 84 85 void 86 i_ddi_mem_free(caddr_t kaddr, ddi_acc_hdl_t *ap); 87 88 int 89 i_ddi_devi_get_ppa(dev_info_t *dip); 90 91 void 92 i_ddi_devi_set_ppa(dev_info_t *dip, int ppa); 93 94 void 95 i_ddi_devacc_to_hatacc(ddi_device_acc_attr_t *devaccp, uint_t *hataccp); 96 97 void 98 i_ddi_cacheattr_to_hatacc(uint_t flags, uint_t *hataccp); 99 100 boolean_t 101 i_ddi_check_cache_attr(uint_t flags); 102 103 /* 104 * Access and DMA handle fault set/clear routines 105 */ 106 void 107 i_ddi_acc_set_fault(ddi_acc_handle_t handle); 108 void 109 i_ddi_acc_clr_fault(ddi_acc_handle_t handle); 110 void 111 i_ddi_dma_set_fault(ddi_dma_handle_t handle); 112 void 113 i_ddi_dma_clr_fault(ddi_dma_handle_t handle); 114 115 /* 116 * Event-handling functions for rootnex 117 * These provide the standard implementation of fault handling 118 */ 119 void 120 i_ddi_rootnex_init_events(dev_info_t *dip); 121 122 int 123 i_ddi_rootnex_get_eventcookie(dev_info_t *dip, dev_info_t *rdip, 124 char *eventname, ddi_eventcookie_t *cookiep); 125 int 126 i_ddi_rootnex_add_eventcall(dev_info_t *dip, dev_info_t *rdip, 127 ddi_eventcookie_t eventid, void (*handler)(dev_info_t *dip, 128 ddi_eventcookie_t event, void *arg, void *impl_data), void *arg, 129 ddi_callback_id_t *cb_id); 130 int 131 i_ddi_rootnex_remove_eventcall(dev_info_t *devi, ddi_callback_id_t cb_id); 132 133 int 134 i_ddi_rootnex_post_event(dev_info_t *dip, dev_info_t *rdip, 135 ddi_eventcookie_t eventid, void *impl_data); 136 137 /* 138 * Clustering: Return the global devices path base, or 139 * the entire global devices path prefix. 140 */ 141 const char * 142 i_ddi_get_dpath_base(); 143 144 const char * 145 i_ddi_get_dpath_prefix(); 146 147 /* 148 * Search and return properties from the PROM 149 */ 150 int 151 impl_ddi_bus_prop_op(dev_t dev, dev_info_t *dip, 152 dev_info_t *ch_dip, ddi_prop_op_t prop_op, int mod_flags, 153 char *name, caddr_t valuep, int *lengthp); 154 155 /* 156 * Copy an integer from PROM to native machine representation 157 */ 158 int 159 impl_ddi_prop_int_from_prom(uchar_t *intp, int n); 160 161 162 extern int impl_ddi_sunbus_initchild(dev_info_t *); 163 extern void impl_ddi_sunbus_removechild(dev_info_t *); 164 165 /* 166 * Implementation specific access handle allocator and init. routines 167 */ 168 extern ddi_acc_handle_t impl_acc_hdl_alloc(int (*waitfp)(caddr_t), 169 caddr_t arg); 170 extern void impl_acc_hdl_free(ddi_acc_handle_t handle); 171 172 extern ddi_acc_hdl_t *impl_acc_hdl_get(ddi_acc_handle_t handle); 173 extern void impl_acc_hdl_init(ddi_acc_hdl_t *hp); 174 175 /* access error handling support */ 176 extern void impl_acc_err_init(ddi_acc_hdl_t *); 177 extern int impl_dma_check(dev_info_t *, const void *, const void *, 178 const void *); 179 extern int i_ddi_ontrap(ddi_acc_handle_t); 180 extern void i_ddi_notrap(ddi_acc_handle_t); 181 extern int i_ddi_prot_trampoline(); 182 extern int i_ddi_caut_trampoline(); 183 184 /* 185 * misc/bootdev entry points - these are private routines and subject 186 * to change. 187 */ 188 extern int 189 i_devname_to_promname(char *dev_name, char *ret_buf, size_t); 190 191 extern int 192 i_promname_to_devname(char *prom_name, char *ret_buf); 193 194 extern char * 195 i_convert_boot_device_name(char *, char *, size_t *); 196 197 /* 198 * Nodeid management ... 199 */ 200 void impl_ddi_init_nodeid(void); 201 int impl_ddi_alloc_nodeid(int *nodeid); 202 int impl_ddi_take_nodeid(int nodeid, int kmflag); 203 void impl_ddi_free_nodeid(int nodeid); 204 205 /* 206 * minorname/devtspectype conversions 207 */ 208 extern char * 209 i_ddi_devtspectype_to_minorname(dev_info_t *dip, dev_t dev, int spec_type); 210 211 extern int 212 i_ddi_minorname_to_devtspectype(dev_info_t *dip, char *minor_name, 213 dev_t *devp, int *spectypep); 214 215 /* 216 * Routines in ddi_v9_asm.s 217 */ 218 extern int do_peek(size_t, void *, void *); 219 extern int do_poke(size_t, void *, void *); 220 extern void peek_fault(void); 221 extern void poke_fault(void); 222 extern int peekpoke_mem(ddi_ctl_enum_t, peekpoke_ctlops_t *); 223 224 /* 225 * Helper functions 226 */ 227 char *i_ddi_strdup(char *, uint_t); 228 void i_ddi_prop_list_delete(ddi_prop_t *); 229 ddi_prop_t *i_ddi_prop_list_dup(ddi_prop_t *, uint_t); 230 int i_ddi_load_drvconf(major_t); 231 int i_ddi_unload_drvconf(major_t); 232 ddi_node_state_t i_ddi_node_state(dev_info_t *); 233 int i_ddi_devi_attached(dev_info_t *); 234 void i_ddi_parse_name(char *, char **, char **, char **); 235 void i_ddi_set_node_state(dev_info_t *, ddi_node_state_t); 236 int i_ddi_detach_installed_driver(major_t, int); 237 void i_ddi_set_binding_name(dev_info_t *, char *); 238 void i_ddi_bind_devs(); 239 void i_ddi_unbind_devs(major_t); 240 ddi_prop_list_t *i_ddi_prop_list_create(ddi_prop_t *); 241 struct devnames; 242 void i_ddi_prop_list_hold(ddi_prop_list_t *, struct devnames *); 243 void i_ddi_prop_list_rele(ddi_prop_list_t *, struct devnames *); 244 ddi_prop_t *i_ddi_prop_search(dev_t, char *, uint_t, ddi_prop_t **); 245 int resolve_pathname(char *, dev_info_t **, dev_t *, int *); 246 int i_ddi_prompath_to_devfspath(char *, char *); 247 int i_ddi_attach_node_hierarchy(dev_info_t *); 248 dev_info_t *i_ddi_attach_pseudo_node(char *); 249 int i_ddi_attach_hw_nodes(char *); 250 int i_ddi_devs_attached(major_t); 251 252 /* non-DDI functions: wrapper around mod_hold/rele_dev_by_major() */ 253 struct dev_ops *ddi_hold_driver(major_t); 254 void ddi_rele_driver(major_t); 255 256 /* 257 * /etc/devices cache files management 258 */ 259 void i_ddi_devices_init(void); 260 void i_ddi_read_devices_files(void); 261 void i_ddi_clean_devices_files(void); 262 263 /* 264 * devid cache 265 */ 266 void devid_cache_init(void); 267 void devid_cache_read(void); 268 void devid_cache_cleanup(void); 269 int i_ddi_devi_get_devid(dev_t, dev_info_t *, ddi_devid_t *); 270 int e_ddi_devid_discovery(ddi_devid_t); 271 int e_devid_cache_register(dev_info_t *, ddi_devid_t); 272 void e_devid_cache_unregister(dev_info_t *); 273 int e_devid_cache_to_devt_list(ddi_devid_t, char *, int *, dev_t **); 274 void e_devid_cache_free_devt_list(int, dev_t *); 275 276 /* 277 * Resource control functions to lock down device memory. 278 */ 279 extern int i_ddi_incr_locked_memory(proc_t *, rctl_qty_t); 280 extern void i_ddi_decr_locked_memory(proc_t *, rctl_qty_t); 281 282 #endif /* _KERNEL */ 283 284 #ifdef __cplusplus 285 } 286 #endif 287 288 #endif /* _SYS_DDI_IMPLFUNCS_H */ 289