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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 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, int streaming); 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 /* 95 * Access and DMA handle fault set/clear routines 96 */ 97 void 98 i_ddi_acc_set_fault(ddi_acc_handle_t handle); 99 void 100 i_ddi_acc_clr_fault(ddi_acc_handle_t handle); 101 void 102 i_ddi_dma_set_fault(ddi_dma_handle_t handle); 103 void 104 i_ddi_dma_clr_fault(ddi_dma_handle_t handle); 105 106 /* 107 * Event-handling functions for rootnex 108 * These provide the standard implementation of fault handling 109 */ 110 void 111 i_ddi_rootnex_init_events(dev_info_t *dip); 112 113 int 114 i_ddi_rootnex_get_eventcookie(dev_info_t *dip, dev_info_t *rdip, 115 char *eventname, ddi_eventcookie_t *cookiep); 116 int 117 i_ddi_rootnex_add_eventcall(dev_info_t *dip, dev_info_t *rdip, 118 ddi_eventcookie_t eventid, void (*handler)(dev_info_t *dip, 119 ddi_eventcookie_t event, void *arg, void *impl_data), void *arg, 120 ddi_callback_id_t *cb_id); 121 int 122 i_ddi_rootnex_remove_eventcall(dev_info_t *devi, ddi_callback_id_t cb_id); 123 124 int 125 i_ddi_rootnex_post_event(dev_info_t *dip, dev_info_t *rdip, 126 ddi_eventcookie_t eventid, void *impl_data); 127 128 /* 129 * Clustering: Return the global devices path base, or 130 * the entire global devices path prefix. 131 */ 132 const char * 133 i_ddi_get_dpath_base(); 134 135 const char * 136 i_ddi_get_dpath_prefix(); 137 138 /* 139 * Search and return properties from the PROM 140 */ 141 int 142 impl_ddi_bus_prop_op(dev_t dev, dev_info_t *dip, 143 dev_info_t *ch_dip, ddi_prop_op_t prop_op, int mod_flags, 144 char *name, caddr_t valuep, int *lengthp); 145 146 /* 147 * Copy an integer from PROM to native machine representation 148 */ 149 int 150 impl_ddi_prop_int_from_prom(uchar_t *intp, int n); 151 152 153 extern int impl_ddi_sunbus_initchild(dev_info_t *); 154 extern void impl_ddi_sunbus_removechild(dev_info_t *); 155 156 /* 157 * Implementation specific access handle allocator and init. routines 158 */ 159 extern ddi_acc_handle_t impl_acc_hdl_alloc(int (*waitfp)(caddr_t), 160 caddr_t arg); 161 extern void impl_acc_hdl_free(ddi_acc_handle_t handle); 162 163 extern ddi_acc_hdl_t *impl_acc_hdl_get(ddi_acc_handle_t handle); 164 extern void impl_acc_hdl_init(ddi_acc_hdl_t *hp); 165 166 /* access error handling support */ 167 extern void impl_acc_err_init(ddi_acc_hdl_t *); 168 extern int i_ddi_ontrap(ddi_acc_handle_t); 169 extern void i_ddi_notrap(ddi_acc_handle_t); 170 extern int i_ddi_prot_trampoline(); 171 extern int i_ddi_caut_trampoline(); 172 173 /* 174 * misc/bootdev entry points - these are private routines and subject 175 * to change. 176 */ 177 extern int 178 i_devname_to_promname(char *dev_name, char *ret_buf, size_t); 179 180 extern int 181 i_promname_to_devname(char *prom_name, char *ret_buf); 182 183 extern char * 184 i_convert_boot_device_name(char *, char *, size_t *); 185 186 /* 187 * Nodeid management ... 188 */ 189 void impl_ddi_init_nodeid(void); 190 int impl_ddi_alloc_nodeid(int *nodeid); 191 int impl_ddi_take_nodeid(int nodeid, int kmflag); 192 void impl_ddi_free_nodeid(int nodeid); 193 194 /* 195 * minorname/devtspectype conversions 196 */ 197 extern char * 198 i_ddi_devtspectype_to_minorname(dev_info_t *dip, dev_t dev, int spec_type); 199 200 extern int 201 i_ddi_minorname_to_devtspectype(dev_info_t *dip, char *minor_name, 202 dev_t *devp, int *spectypep); 203 204 /* 205 * Routines in ddi_v9_asm.s 206 */ 207 extern int do_peek(size_t, void *, void *); 208 extern int do_poke(size_t, void *, void *); 209 extern void peek_fault(void); 210 extern void poke_fault(void); 211 extern int peekpoke_mem(ddi_ctl_enum_t, peekpoke_ctlops_t *); 212 213 /* 214 * Helper functions 215 */ 216 char *i_ddi_strdup(char *, uint_t); 217 void i_ddi_prop_list_delete(ddi_prop_t *); 218 ddi_prop_t *i_ddi_prop_list_dup(ddi_prop_t *, uint_t); 219 int i_ddi_load_drvconf(major_t); 220 int i_ddi_unload_drvconf(major_t); 221 ddi_node_state_t i_ddi_node_state(dev_info_t *); 222 int i_ddi_devi_attached(dev_info_t *); 223 void i_ddi_parse_name(char *, char **, char **, char **); 224 void i_ddi_set_node_state(dev_info_t *, ddi_node_state_t); 225 int i_ddi_detach_installed_driver(major_t, int); 226 void i_ddi_set_binding_name(dev_info_t *, char *); 227 void i_ddi_bind_devs(); 228 void i_ddi_unbind_devs(major_t); 229 ddi_prop_list_t *i_ddi_prop_list_create(ddi_prop_t *); 230 struct devnames; 231 void i_ddi_prop_list_hold(ddi_prop_list_t *, struct devnames *); 232 void i_ddi_prop_list_rele(ddi_prop_list_t *, struct devnames *); 233 ddi_prop_t *i_ddi_prop_search(dev_t, char *, uint_t, ddi_prop_t **); 234 int resolve_pathname(char *, dev_info_t **, dev_t *, int *); 235 int i_ddi_prompath_to_devfspath(char *, char *); 236 int i_ddi_attach_node_hierarchy(dev_info_t *); 237 dev_info_t *i_ddi_attach_pseudo_node(char *); 238 int i_ddi_attach_hw_nodes(char *); 239 int i_ddi_devs_attached(major_t); 240 241 /* non-DDI functions: wrapper around mod_hold/rele_dev_by_major() */ 242 struct dev_ops *ddi_hold_driver(major_t); 243 void ddi_rele_driver(major_t); 244 245 /* 246 * devid cache 247 */ 248 void i_ddi_devices_init(void); 249 void i_ddi_read_devices_files(void); 250 void i_ddi_clean_devices_files(void); 251 252 int i_ddi_devi_get_devid(dev_t, dev_info_t *, ddi_devid_t *); 253 254 int e_ddi_devid_discovery(ddi_devid_t); 255 256 int e_devid_cache_register(dev_info_t *, ddi_devid_t); 257 void e_devid_cache_unregister(dev_info_t *); 258 259 int e_devid_cache_to_devt_list(ddi_devid_t, char *, int *, dev_t **); 260 void e_devid_cache_free_devt_list(int, dev_t *); 261 262 /* 263 * Resource control functions to lock down device memory. 264 */ 265 extern int i_ddi_incr_locked_memory(proc_t *, task_t *, kproject_t *, 266 zone_t *, rctl_qty_t); 267 extern void i_ddi_decr_locked_memory(proc_t *, task_t *, kproject_t *, 268 zone_t *, rctl_qty_t); 269 270 #endif /* _KERNEL */ 271 272 #ifdef __cplusplus 273 } 274 #endif 275 276 #endif /* _SYS_DDI_IMPLFUNCS_H */ 277