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 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_DDI_INTR_IMPL_H 27 #define _SYS_DDI_INTR_IMPL_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 /* 32 * Sun DDI interrupt implementation specific definitions 33 */ 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #ifdef _KERNEL 40 41 /* 42 * Typedef for interrupt ops 43 */ 44 typedef enum { 45 DDI_INTROP_SUPPORTED_TYPES = 1, /* 1 get supported interrupts types */ 46 DDI_INTROP_NINTRS, /* 2 get num of interrupts supported */ 47 DDI_INTROP_ALLOC, /* 3 allocate interrupt handle */ 48 DDI_INTROP_GETPRI, /* 4 get priority */ 49 DDI_INTROP_SETPRI, /* 5 set priority */ 50 DDI_INTROP_ADDISR, /* 6 add interrupt handler */ 51 DDI_INTROP_DUPVEC, /* 7 duplicate interrupt handler */ 52 DDI_INTROP_ENABLE, /* 8 enable interrupt */ 53 DDI_INTROP_BLOCKENABLE, /* 9 block enable interrupts */ 54 DDI_INTROP_BLOCKDISABLE, /* 10 block disable interrupts */ 55 DDI_INTROP_DISABLE, /* 11 disable interrupt */ 56 DDI_INTROP_REMISR, /* 12 remove interrupt handler */ 57 DDI_INTROP_FREE, /* 13 free interrupt handle */ 58 DDI_INTROP_GETCAP, /* 14 get capacity */ 59 DDI_INTROP_SETCAP, /* 15 set capacity */ 60 DDI_INTROP_SETMASK, /* 16 set mask */ 61 DDI_INTROP_CLRMASK, /* 17 clear mask */ 62 DDI_INTROP_GETPENDING, /* 18 get pending interrupt */ 63 DDI_INTROP_NAVAIL /* 19 get num of available interrupts */ 64 } ddi_intr_op_t; 65 66 /* Version number used in the handles */ 67 #define DDI_INTR_VERSION_1 1 68 #define DDI_INTR_VERSION DDI_INTR_VERSION_1 69 70 /* 71 * One such data structure is allocated per ddi_intr_handle_t 72 * This is the incore copy of the regular interrupt info. 73 */ 74 typedef struct ddi_intr_handle_impl { 75 dev_info_t *ih_dip; /* dip associated with handle */ 76 uint16_t ih_type; /* interrupt type being used */ 77 ushort_t ih_inum; /* interrupt number */ 78 uint32_t ih_vector; /* vector number */ 79 uint16_t ih_ver; /* Version */ 80 uint_t ih_state; /* interrupt handle state */ 81 uint_t ih_cap; /* interrupt capabilities */ 82 uint_t ih_pri; /* priority - bus dependent */ 83 krwlock_t ih_rwlock; /* read/write lock per handle */ 84 85 uint_t (*ih_cb_func)(caddr_t, caddr_t); 86 void *ih_cb_arg1; 87 void *ih_cb_arg2; 88 89 /* 90 * The following 3 members are used to support MSI-X specific features 91 */ 92 uint_t ih_flags; /* Misc flags */ 93 uint_t ih_dup_cnt; /* # of dupped msi-x vectors */ 94 struct ddi_intr_handle_impl *ih_main; 95 /* pntr to the main vector */ 96 /* 97 * The next set of members are for 'scratch' purpose only. 98 * The DDI interrupt framework uses them internally and their 99 * interpretation is left to the framework. For now, 100 * scratch1 - used to send NINTRs information 101 * to various nexus drivers. 102 * scratch2 - used to send 'behavior' flag 103 * information to the nexus drivers 104 * from ddi_intr_alloc(). It is also 105 * used to send 'h_array' to the nexus drivers 106 * for ddi_intr_block_enable/disable() on x86. 107 * private - On X86 it usually carries a pointer to 108 * ihdl_plat_t. Not used on SPARC platforms. 109 */ 110 void *ih_private; /* Platform specific data */ 111 uint_t ih_scratch1; /* Scratch1: #interrupts */ 112 void *ih_scratch2; /* Scratch2: flag/h_array */ 113 } ddi_intr_handle_impl_t; 114 115 /* values for ih_state (strictly for interrupt handle) */ 116 #define DDI_IHDL_STATE_ALLOC 0x01 /* Allocated. ddi_intr_alloc() called */ 117 #define DDI_IHDL_STATE_ADDED 0x02 /* Added interrupt handler */ 118 /* ddi_intr_add_handler() called */ 119 #define DDI_IHDL_STATE_ENABLE 0x04 /* Enabled. ddi_intr_enable() called */ 120 121 #define DDI_INTR_IS_MSI_OR_MSIX(type) \ 122 ((type) == DDI_INTR_TYPE_MSI || (type) == DDI_INTR_TYPE_MSIX) 123 124 #define DDI_INTR_BEHAVIOR_FLAG_VALID(f) \ 125 (((f) == DDI_INTR_ALLOC_NORMAL) || ((f) == DDI_INTR_ALLOC_STRICT)) 126 127 #define DDI_INTR_TYPE_FLAG_VALID(t) \ 128 (((t) == DDI_INTR_TYPE_FIXED) || \ 129 ((t) == DDI_INTR_TYPE_MSI) || \ 130 ((t) == DDI_INTR_TYPE_MSIX)) 131 132 /* values for ih_flags */ 133 #define DDI_INTR_MSIX_DUP 0x01 /* MSI-X vector which has been dupped */ 134 135 struct av_softinfo; 136 137 /* 138 * One such data structure is allocated per ddi_soft_intr_handle 139 * This is the incore copy of the softint info. 140 */ 141 typedef struct ddi_softint_hdl_impl { 142 dev_info_t *ih_dip; /* dip associated with handle */ 143 uint_t ih_pri; /* priority - bus dependent */ 144 krwlock_t ih_rwlock; /* read/write lock per handle */ 145 struct av_softinfo *ih_pending; /* whether softint is pending */ 146 147 uint_t (*ih_cb_func)(caddr_t, caddr_t); 148 /* cb function for soft ints */ 149 void *ih_cb_arg1; /* arg1 of callback function */ 150 void *ih_cb_arg2; /* arg2 passed to "trigger" */ 151 152 /* 153 * The next member is for 'scratch' purpose only. 154 * The DDI interrupt framework uses it internally and its 155 * interpretation is left to the framework. 156 * private - used by the DDI framework to pass back 157 * and forth 'softid' information on SPARC 158 * side only. Not used on X86 platform. 159 */ 160 void *ih_private; /* Platform specific data */ 161 } ddi_softint_hdl_impl_t; 162 163 /* Softint internal implementation defines */ 164 #define DDI_SOFT_INTR_PRI_M 4 165 #define DDI_SOFT_INTR_PRI_H 6 166 167 /* 168 * One such data structure is allocated for MSI-X enabled 169 * device. If no MSI-X is enabled then it is NULL 170 */ 171 typedef struct ddi_intr_msix { 172 /* MSI-X Table related information */ 173 ddi_acc_handle_t msix_tbl_hdl; /* MSI-X table handle */ 174 uint32_t *msix_tbl_addr; /* MSI-X table addr */ 175 uint32_t msix_tbl_offset; /* MSI-X table offset */ 176 177 /* MSI-X PBA Table related information */ 178 ddi_acc_handle_t msix_pba_hdl; /* MSI-X PBA handle */ 179 uint32_t *msix_pba_addr; /* MSI-X PBA addr */ 180 uint32_t msix_pba_offset; /* MSI-X PBA offset */ 181 182 ddi_device_acc_attr_t msix_dev_attr; /* MSI-X device attr */ 183 } ddi_intr_msix_t; 184 185 186 /* 187 * One such data structure is allocated for each dip. 188 * It has interrupt related information that can be 189 * stored/retrieved for convenience. 190 */ 191 typedef struct devinfo_intr { 192 /* These three fields show what the device is capable of */ 193 uint_t devi_intr_sup_types; /* Intrs supported by device */ 194 195 ddi_intr_msix_t *devi_msix_p; /* MSI-X info, if supported */ 196 197 /* Next three fields show current status for the device */ 198 uint_t devi_intr_curr_type; /* Interrupt type being used */ 199 uint_t devi_intr_sup_nintrs; /* #intr supported */ 200 uint_t devi_intr_curr_nintrs; /* #intr currently being used */ 201 202 ddi_intr_handle_t **devi_intr_handle_p; /* Hdl for legacy intr APIs */ 203 204 #if defined(__i386) || defined(__amd64) 205 /* Save the PCI config space handle */ 206 ddi_acc_handle_t devi_cfg_handle; 207 int devi_cap_ptr; /* MSI or MSI-X cap pointer */ 208 #endif 209 } devinfo_intr_t; 210 211 #define NEXUS_HAS_INTR_OP(dip) \ 212 ((DEVI(dip)->devi_ops->devo_bus_ops) && \ 213 (DEVI(dip)->devi_ops->devo_bus_ops->busops_rev >= BUSO_REV_9) && \ 214 (DEVI(dip)->devi_ops->devo_bus_ops->bus_intr_op)) 215 216 int i_ddi_intr_ops(dev_info_t *dip, dev_info_t *rdip, ddi_intr_op_t op, 217 ddi_intr_handle_impl_t *hdlp, void *result); 218 219 int i_ddi_add_softint(ddi_softint_hdl_impl_t *); 220 void i_ddi_remove_softint(ddi_softint_hdl_impl_t *); 221 int i_ddi_trigger_softint(ddi_softint_hdl_impl_t *, void *); 222 int i_ddi_set_softint_pri(ddi_softint_hdl_impl_t *, uint_t); 223 224 void i_ddi_intr_devi_init(dev_info_t *dip); 225 void i_ddi_intr_devi_fini(dev_info_t *dip); 226 227 uint_t i_ddi_intr_get_supported_types(dev_info_t *dip); 228 void i_ddi_intr_set_supported_types(dev_info_t *dip, int sup_type); 229 uint_t i_ddi_intr_get_current_type(dev_info_t *dip); 230 void i_ddi_intr_set_current_type(dev_info_t *dip, int intr_type); 231 uint_t i_ddi_intr_get_supported_nintrs(dev_info_t *dip, int intr_type); 232 void i_ddi_intr_set_supported_nintrs(dev_info_t *dip, int nintrs); 233 uint_t i_ddi_intr_get_current_nintrs(dev_info_t *dip); 234 void i_ddi_intr_set_current_nintrs(dev_info_t *dip, int nintrs); 235 236 ddi_intr_handle_t *i_ddi_get_intr_handle(dev_info_t *dip, int inum); 237 void i_ddi_set_intr_handle(dev_info_t *dip, int inum, 238 ddi_intr_handle_t *hdlp); 239 240 ddi_intr_msix_t *i_ddi_get_msix(dev_info_t *dip); 241 void i_ddi_set_msix(dev_info_t *dip, ddi_intr_msix_t *msix_p); 242 243 #if defined(__i386) || defined(__amd64) 244 ddi_acc_handle_t i_ddi_get_pci_config_handle(dev_info_t *dip); 245 void i_ddi_set_pci_config_handle(dev_info_t *dip, ddi_acc_handle_t handle); 246 int i_ddi_get_msi_msix_cap_ptr(dev_info_t *dip); 247 void i_ddi_set_msi_msix_cap_ptr(dev_info_t *dip, int cap_ptr); 248 #endif 249 250 int32_t i_ddi_get_intr_weight(dev_info_t *); 251 int32_t i_ddi_set_intr_weight(dev_info_t *, int32_t); 252 253 void i_ddi_alloc_intr_phdl(ddi_intr_handle_impl_t *); 254 void i_ddi_free_intr_phdl(ddi_intr_handle_impl_t *); 255 256 #define DDI_INTR_ASSIGN_HDLR_N_ARGS(hdlp, func, arg1, arg2) \ 257 hdlp->ih_cb_func = func; \ 258 hdlp->ih_cb_arg1 = arg1; \ 259 hdlp->ih_cb_arg2 = arg2; 260 261 #ifdef DEBUG 262 #define I_DDI_VERIFY_MSIX_HANDLE(hdlp) \ 263 if ((hdlp->ih_type == DDI_INTR_TYPE_MSIX) && \ 264 (hdlp->ih_flags & DDI_INTR_MSIX_DUP)) { \ 265 ASSERT(hdlp->ih_dip == hdlp->ih_main->ih_dip); \ 266 ASSERT(hdlp->ih_type == hdlp->ih_main->ih_type); \ 267 ASSERT(hdlp->ih_vector == hdlp->ih_main->ih_vector); \ 268 ASSERT(hdlp->ih_ver == hdlp->ih_main->ih_ver); \ 269 ASSERT(hdlp->ih_cap == hdlp->ih_main->ih_cap); \ 270 ASSERT(hdlp->ih_pri == hdlp->ih_main->ih_pri); \ 271 } 272 #else 273 #define I_DDI_VERIFY_MSIX_HANDLE(hdlp) 274 #endif 275 276 #else /* _KERNEL */ 277 278 typedef struct devinfo_intr devinfo_intr_t; 279 280 #endif /* _KERNEL */ 281 282 /* 283 * Used only by old DDI interrupt interfaces. 284 */ 285 286 /* 287 * This structure represents one interrupt possible from the given 288 * device. It is used in an array for devices with multiple interrupts. 289 */ 290 struct intrspec { 291 uint_t intrspec_pri; /* interrupt priority */ 292 uint_t intrspec_vec; /* vector # (0 if none) */ 293 uint_t (*intrspec_func)(); /* function to call for interrupt, */ 294 /* If (uint_t (*)()) 0, none. */ 295 /* If (uint_t (*)()) 1, then */ 296 }; 297 298 #ifdef _KERNEL 299 300 /* 301 * Figure out how many FIXED nintrs are supported 302 */ 303 int i_ddi_get_intx_nintrs(dev_info_t *dip); 304 305 /* 306 * NOTE: 307 * The following 4 busops entry points are obsoleted with version 308 * 9 or greater. Use i_ddi_intr_op interface in place of these 309 * obsolete interfaces. 310 * 311 * Remove these busops entry points and all related data structures 312 * in future minor/major solaris release. 313 */ 314 typedef enum {DDI_INTR_CTLOPS_NONE} ddi_intr_ctlop_t; 315 316 /* The following are the obsolete interfaces */ 317 ddi_intrspec_t i_ddi_get_intrspec(dev_info_t *dip, dev_info_t *rdip, 318 uint_t inumber); 319 320 int i_ddi_add_intrspec(dev_info_t *dip, dev_info_t *rdip, 321 ddi_intrspec_t intrspec, ddi_iblock_cookie_t *iblock_cookiep, 322 ddi_idevice_cookie_t *idevice_cookiep, 323 uint_t (*int_handler)(caddr_t int_handler_arg), 324 caddr_t int_handler_arg, int kind); 325 326 void i_ddi_remove_intrspec(dev_info_t *dip, dev_info_t *rdip, 327 ddi_intrspec_t intrspec, ddi_iblock_cookie_t iblock_cookie); 328 329 int i_ddi_intr_ctlops(dev_info_t *dip, dev_info_t *rdip, 330 ddi_intr_ctlop_t op, void *arg, void *val); 331 332 #endif /* _KERNEL */ 333 334 #ifdef __cplusplus 335 } 336 #endif 337 338 #endif /* _SYS_DDI_INTR_IMPL_H */ 339