1 /*- 2 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org> 3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org> 4 * Copyright (c) 2000 BSDi 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _ACPIVAR_H_ 32 #define _ACPIVAR_H_ 33 34 #ifdef _KERNEL 35 36 #include "acpi_if.h" 37 #include "bus_if.h" 38 #include <sys/_eventhandler.h> 39 #ifdef INTRNG 40 #include <sys/intr.h> 41 #endif 42 #include <sys/ktr.h> 43 #include <sys/lock.h> 44 #include <sys/mutex.h> 45 #include <sys/selinfo.h> 46 #include <sys/sx.h> 47 #include <sys/sysctl.h> 48 49 #include <machine/bus.h> 50 #include <machine/resource.h> 51 52 struct apm_clone_data; 53 struct acpi_softc { 54 device_t acpi_dev; 55 struct cdev *acpi_dev_t; 56 57 int acpi_enabled; 58 int acpi_sstate; 59 int acpi_sleep_disabled; 60 int acpi_resources_reserved; 61 62 struct sysctl_ctx_list acpi_sysctl_ctx; 63 struct sysctl_oid *acpi_sysctl_tree; 64 int acpi_power_button_sx; 65 int acpi_sleep_button_sx; 66 int acpi_lid_switch_sx; 67 68 int acpi_standby_sx; 69 int acpi_suspend_sx; 70 71 int acpi_sleep_delay; 72 int acpi_s4bios; 73 int acpi_do_disable; 74 int acpi_verbose; 75 int acpi_handle_reboot; 76 77 vm_offset_t acpi_wakeaddr; 78 vm_paddr_t acpi_wakephys; 79 80 int acpi_next_sstate; /* Next suspend Sx state. */ 81 struct apm_clone_data *acpi_clone; /* Pseudo-dev for devd(8). */ 82 STAILQ_HEAD(,apm_clone_data) apm_cdevs; /* All apm/apmctl/acpi cdevs. */ 83 struct callout susp_force_to; /* Force suspend if no acks. */ 84 }; 85 86 struct acpi_device { 87 /* ACPI ivars */ 88 ACPI_HANDLE ad_handle; 89 void *ad_private; 90 int ad_flags; 91 int ad_cls_class; 92 93 /* Resources */ 94 struct resource_list ad_rl; 95 }; 96 97 #ifdef INTRNG 98 struct intr_map_data_acpi { 99 struct intr_map_data hdr; 100 u_int irq; 101 u_int pol; 102 u_int trig; 103 }; 104 105 #endif 106 107 /* Track device (/dev/{apm,apmctl} and /dev/acpi) notification status. */ 108 struct apm_clone_data { 109 STAILQ_ENTRY(apm_clone_data) entries; 110 struct cdev *cdev; 111 int flags; 112 #define ACPI_EVF_NONE 0 /* /dev/apm semantics */ 113 #define ACPI_EVF_DEVD 1 /* /dev/acpi is handled via devd(8) */ 114 #define ACPI_EVF_WRITE 2 /* Device instance is opened writable. */ 115 int notify_status; 116 #define APM_EV_NONE 0 /* Device not yet aware of pending sleep. */ 117 #define APM_EV_NOTIFIED 1 /* Device saw next sleep state. */ 118 #define APM_EV_ACKED 2 /* Device agreed sleep can occur. */ 119 struct acpi_softc *acpi_sc; 120 struct selinfo sel_read; 121 }; 122 123 #define ACPI_PRW_MAX_POWERRES 8 124 125 struct acpi_prw_data { 126 ACPI_HANDLE gpe_handle; 127 int gpe_bit; 128 int lowest_wake; 129 ACPI_OBJECT power_res[ACPI_PRW_MAX_POWERRES]; 130 int power_res_count; 131 }; 132 133 /* Flags for each device defined in the AML namespace. */ 134 #define ACPI_FLAG_WAKE_ENABLED 0x1 135 136 /* Macros for extracting parts of a PCI address from an _ADR value. */ 137 #define ACPI_ADR_PCI_SLOT(adr) (((adr) & 0xffff0000) >> 16) 138 #define ACPI_ADR_PCI_FUNC(adr) ((adr) & 0xffff) 139 140 /* 141 * Entry points to ACPI from above are global functions defined in this 142 * file, sysctls, and I/O on the control device. Entry points from below 143 * are interrupts (the SCI), notifies, task queue threads, and the thermal 144 * zone polling thread. 145 * 146 * ACPI tables and global shared data are protected by a global lock 147 * (acpi_mutex). 148 * 149 * Each ACPI device can have its own driver-specific mutex for protecting 150 * shared access to local data. The ACPI_LOCK macros handle mutexes. 151 * 152 * Drivers that need to serialize access to functions (e.g., to route 153 * interrupts, get/set control paths, etc.) should use the sx lock macros 154 * (ACPI_SERIAL). 155 * 156 * ACPI-CA handles its own locking and should not be called with locks held. 157 * 158 * The most complicated path is: 159 * GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE 160 */ 161 extern struct mtx acpi_mutex; 162 #define ACPI_LOCK(sys) mtx_lock(&sys##_mutex) 163 #define ACPI_UNLOCK(sys) mtx_unlock(&sys##_mutex) 164 #define ACPI_LOCK_ASSERT(sys) mtx_assert(&sys##_mutex, MA_OWNED); 165 #define ACPI_LOCK_DECL(sys, name) \ 166 static struct mtx sys##_mutex; \ 167 MTX_SYSINIT(sys##_mutex, &sys##_mutex, name, MTX_DEF) 168 #define ACPI_SERIAL_BEGIN(sys) sx_xlock(&sys##_sxlock) 169 #define ACPI_SERIAL_END(sys) sx_xunlock(&sys##_sxlock) 170 #define ACPI_SERIAL_ASSERT(sys) sx_assert(&sys##_sxlock, SX_XLOCKED); 171 #define ACPI_SERIAL_DECL(sys, name) \ 172 static struct sx sys##_sxlock; \ 173 SX_SYSINIT(sys##_sxlock, &sys##_sxlock, name) 174 175 /* 176 * ACPI CA does not define layers for non-ACPI CA drivers. 177 * We define some here within the range provided. 178 */ 179 #define ACPI_AC_ADAPTER 0x00010000 180 #define ACPI_BATTERY 0x00020000 181 #define ACPI_BUS 0x00040000 182 #define ACPI_BUTTON 0x00080000 183 #define ACPI_EC 0x00100000 184 #define ACPI_FAN 0x00200000 185 #define ACPI_POWERRES 0x00400000 186 #define ACPI_PROCESSOR 0x00800000 187 #define ACPI_THERMAL 0x01000000 188 #define ACPI_TIMER 0x02000000 189 #define ACPI_OEM 0x04000000 190 191 /* 192 * Constants for different interrupt models used with acpi_SetIntrModel(). 193 */ 194 #define ACPI_INTR_PIC 0 195 #define ACPI_INTR_APIC 1 196 #define ACPI_INTR_SAPIC 2 197 198 /* 199 * Various features and capabilities for the acpi_get_features() method. 200 * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods. 201 * See the Intel document titled "Intel Processor Vendor-Specific ACPI", 202 * number 302223-007. 203 */ 204 #define ACPI_CAP_PERF_MSRS (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */ 205 #define ACPI_CAP_C1_IO_HALT (1 << 1) /* Intel C1 "IO then halt" sequence */ 206 #define ACPI_CAP_THR_MSRS (1 << 2) /* Intel OnDemand throttling MSRs */ 207 #define ACPI_CAP_SMP_SAME (1 << 3) /* MP C1, Px, and Tx (all the same) */ 208 #define ACPI_CAP_SMP_SAME_C3 (1 << 4) /* MP C2 and C3 (all the same) */ 209 #define ACPI_CAP_SMP_DIFF_PX (1 << 5) /* MP Px (different, using _PSD) */ 210 #define ACPI_CAP_SMP_DIFF_CX (1 << 6) /* MP Cx (different, using _CSD) */ 211 #define ACPI_CAP_SMP_DIFF_TX (1 << 7) /* MP Tx (different, using _TSD) */ 212 #define ACPI_CAP_SMP_C1_NATIVE (1 << 8) /* MP C1 support other than halt */ 213 #define ACPI_CAP_SMP_C3_NATIVE (1 << 9) /* MP C2 and C3 support */ 214 #define ACPI_CAP_PX_HW_COORD (1 << 11) /* Intel P-state HW coordination */ 215 #define ACPI_CAP_INTR_CPPC (1 << 12) /* Native Interrupt Handling for 216 Collaborative Processor Performance Control notifications */ 217 #define ACPI_CAP_HW_DUTY_C (1 << 13) /* Hardware Duty Cycling */ 218 219 /* 220 * Quirk flags. 221 * 222 * ACPI_Q_BROKEN: Disables all ACPI support. 223 * ACPI_Q_TIMER: Disables support for the ACPI timer. 224 * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the 225 * first APIC and that the MADT should force that by ignoring the PC-AT 226 * compatible flag and ignoring overrides that redirect IRQ 0 to pin 2. 227 */ 228 extern int acpi_quirks; 229 #define ACPI_Q_OK 0 230 #define ACPI_Q_BROKEN (1 << 0) 231 #define ACPI_Q_TIMER (1 << 1) 232 #define ACPI_Q_MADT_IRQ0 (1 << 2) 233 234 /* 235 * Note that the low ivar values are reserved to provide 236 * interface compatibility with ISA drivers which can also 237 * attach to ACPI. 238 */ 239 #define ACPI_IVAR_HANDLE 0x100 240 #define ACPI_IVAR_UNUSED 0x101 /* Unused/reserved. */ 241 #define ACPI_IVAR_PRIVATE 0x102 242 #define ACPI_IVAR_FLAGS 0x103 243 244 /* 245 * Accessor functions for our ivars. Default value for BUS_READ_IVAR is 246 * (type) 0. The <sys/bus.h> accessor functions don't check return values. 247 */ 248 #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type) \ 249 \ 250 static __inline type varp ## _get_ ## var(device_t dev) \ 251 { \ 252 uintptr_t v = 0; \ 253 BUS_READ_IVAR(device_get_parent(dev), dev, \ 254 ivarp ## _IVAR_ ## ivar, &v); \ 255 return ((type) v); \ 256 } \ 257 \ 258 static __inline void varp ## _set_ ## var(device_t dev, type t) \ 259 { \ 260 uintptr_t v = (uintptr_t) t; \ 261 BUS_WRITE_IVAR(device_get_parent(dev), dev, \ 262 ivarp ## _IVAR_ ## ivar, v); \ 263 } 264 265 __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE) 266 __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *) 267 __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int) 268 269 void acpi_fake_objhandler(ACPI_HANDLE h, void *data); 270 static __inline device_t 271 acpi_get_device(ACPI_HANDLE handle) 272 { 273 void *dev = NULL; 274 AcpiGetData(handle, acpi_fake_objhandler, &dev); 275 return ((device_t)dev); 276 } 277 278 static __inline ACPI_OBJECT_TYPE 279 acpi_get_type(device_t dev) 280 { 281 ACPI_HANDLE h; 282 ACPI_OBJECT_TYPE t; 283 284 if ((h = acpi_get_handle(dev)) == NULL) 285 return (ACPI_TYPE_NOT_FOUND); 286 if (ACPI_FAILURE(AcpiGetType(h, &t))) 287 return (ACPI_TYPE_NOT_FOUND); 288 return (t); 289 } 290 291 /* Find the difference between two PM tick counts. */ 292 static __inline uint32_t 293 acpi_TimerDelta(uint32_t end, uint32_t start) 294 { 295 296 if (end < start && (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) == 0) 297 end |= 0x01000000; 298 return (end - start); 299 } 300 301 #ifdef ACPI_DEBUGGER 302 void acpi_EnterDebugger(void); 303 #endif 304 305 #ifdef ACPI_DEBUG 306 #include <sys/cons.h> 307 #define STEP(x) do {printf x, printf("\n"); cngetc();} while (0) 308 #else 309 #define STEP(x) 310 #endif 311 312 #define ACPI_VPRINT(dev, acpi_sc, x...) do { \ 313 if (acpi_get_verbose(acpi_sc)) \ 314 device_printf(dev, x); \ 315 } while (0) 316 317 /* Values for the first status word returned by _OSC. */ 318 #define ACPI_OSC_FAILURE (1 << 1) 319 #define ACPI_OSC_BAD_UUID (1 << 2) 320 #define ACPI_OSC_BAD_REVISION (1 << 3) 321 #define ACPI_OSC_CAPS_MASKED (1 << 4) 322 323 #define ACPI_DEVINFO_PRESENT(x, flags) \ 324 (((x) & (flags)) == (flags)) 325 #define ACPI_DEVICE_PRESENT(x) \ 326 ACPI_DEVINFO_PRESENT(x, ACPI_STA_DEVICE_PRESENT | \ 327 ACPI_STA_DEVICE_FUNCTIONING) 328 #define ACPI_BATTERY_PRESENT(x) \ 329 ACPI_DEVINFO_PRESENT(x, ACPI_STA_DEVICE_PRESENT | \ 330 ACPI_STA_DEVICE_FUNCTIONING | ACPI_STA_BATTERY_PRESENT) 331 332 /* Callback function type for walking subtables within a table. */ 333 typedef void acpi_subtable_handler(ACPI_SUBTABLE_HEADER *, void *); 334 335 BOOLEAN acpi_DeviceIsPresent(device_t dev); 336 BOOLEAN acpi_BatteryIsPresent(device_t dev); 337 ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path, 338 ACPI_HANDLE *result); 339 ACPI_BUFFER *acpi_AllocBuffer(int size); 340 ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp, 341 UINT32 *number); 342 ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path, 343 UINT32 *number); 344 ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path, 345 UINT32 number); 346 ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *obj, 347 void (*func)(ACPI_OBJECT *comp, void *arg), void *arg); 348 ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index, 349 ACPI_RESOURCE **resp); 350 ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf, 351 ACPI_RESOURCE *res); 352 UINT8 acpi_DSMQuery(ACPI_HANDLE h, uint8_t *uuid, int revision); 353 ACPI_STATUS acpi_EvaluateDSM(ACPI_HANDLE handle, uint8_t *uuid, 354 int revision, uint64_t function, union acpi_object *package, 355 ACPI_BUFFER *out_buf); 356 ACPI_STATUS acpi_EvaluateOSC(ACPI_HANDLE handle, uint8_t *uuid, 357 int revision, int count, uint32_t *caps_in, 358 uint32_t *caps_out, bool query); 359 ACPI_STATUS acpi_OverrideInterruptLevel(UINT32 InterruptNumber); 360 ACPI_STATUS acpi_SetIntrModel(int model); 361 int acpi_ReqSleepState(struct acpi_softc *sc, int state); 362 int acpi_AckSleepState(struct apm_clone_data *clone, int error); 363 ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state); 364 int acpi_wake_set_enable(device_t dev, int enable); 365 int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw); 366 ACPI_STATUS acpi_Startup(void); 367 void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h, 368 uint8_t notify); 369 int acpi_bus_alloc_gas(device_t dev, int *type, int *rid, 370 ACPI_GENERIC_ADDRESS *gas, struct resource **res, 371 u_int flags); 372 void acpi_walk_subtables(void *first, void *end, 373 acpi_subtable_handler *handler, void *arg); 374 int acpi_MatchHid(ACPI_HANDLE h, const char *hid); 375 #define ACPI_MATCHHID_NOMATCH 0 376 #define ACPI_MATCHHID_HID 1 377 #define ACPI_MATCHHID_CID 2 378 379 380 struct acpi_parse_resource_set { 381 void (*set_init)(device_t dev, void *arg, void **context); 382 void (*set_done)(device_t dev, void *context); 383 void (*set_ioport)(device_t dev, void *context, uint64_t base, 384 uint64_t length); 385 void (*set_iorange)(device_t dev, void *context, uint64_t low, 386 uint64_t high, uint64_t length, uint64_t align); 387 void (*set_memory)(device_t dev, void *context, uint64_t base, 388 uint64_t length); 389 void (*set_memoryrange)(device_t dev, void *context, uint64_t low, 390 uint64_t high, uint64_t length, uint64_t align); 391 void (*set_irq)(device_t dev, void *context, uint8_t *irq, 392 int count, int trig, int pol); 393 void (*set_ext_irq)(device_t dev, void *context, uint32_t *irq, 394 int count, int trig, int pol); 395 void (*set_drq)(device_t dev, void *context, uint8_t *drq, 396 int count); 397 void (*set_start_dependent)(device_t dev, void *context, 398 int preference); 399 void (*set_end_dependent)(device_t dev, void *context); 400 }; 401 402 extern struct acpi_parse_resource_set acpi_res_parse_set; 403 404 int acpi_identify(void); 405 void acpi_config_intr(device_t dev, ACPI_RESOURCE *res); 406 #ifdef INTRNG 407 int acpi_map_intr(device_t dev, u_int irq, ACPI_HANDLE handle); 408 #endif 409 ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid, 410 struct resource *res, ACPI_RESOURCE *acpi_res); 411 ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle, 412 struct acpi_parse_resource_set *set, void *arg); 413 struct resource *acpi_alloc_sysres(device_t child, int type, int *rid, 414 rman_res_t start, rman_res_t end, rman_res_t count, 415 u_int flags); 416 417 /* ACPI event handling */ 418 UINT32 acpi_event_power_button_sleep(void *context); 419 UINT32 acpi_event_power_button_wake(void *context); 420 UINT32 acpi_event_sleep_button_sleep(void *context); 421 UINT32 acpi_event_sleep_button_wake(void *context); 422 423 #define ACPI_EVENT_PRI_FIRST 0 424 #define ACPI_EVENT_PRI_DEFAULT 10000 425 #define ACPI_EVENT_PRI_LAST 20000 426 427 typedef void (*acpi_event_handler_t)(void *, int); 428 429 EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t); 430 EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t); 431 432 /* Device power control. */ 433 ACPI_STATUS acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable); 434 ACPI_STATUS acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state); 435 int acpi_device_pwr_for_sleep(device_t bus, device_t dev, 436 int *dstate); 437 438 /* APM emulation */ 439 void acpi_apm_init(struct acpi_softc *); 440 441 /* Misc. */ 442 static __inline struct acpi_softc * 443 acpi_device_get_parent_softc(device_t child) 444 { 445 device_t parent; 446 447 parent = device_get_parent(child); 448 if (parent == NULL) 449 return (NULL); 450 return (device_get_softc(parent)); 451 } 452 453 static __inline int 454 acpi_get_verbose(struct acpi_softc *sc) 455 { 456 if (sc) 457 return (sc->acpi_verbose); 458 return (0); 459 } 460 461 char *acpi_name(ACPI_HANDLE handle); 462 int acpi_avoid(ACPI_HANDLE handle); 463 int acpi_disabled(char *subsys); 464 int acpi_machdep_init(device_t dev); 465 void acpi_install_wakeup_handler(struct acpi_softc *sc); 466 int acpi_sleep_machdep(struct acpi_softc *sc, int state); 467 int acpi_wakeup_machdep(struct acpi_softc *sc, int state, 468 int sleep_result, int intr_enabled); 469 int acpi_table_quirks(int *quirks); 470 int acpi_machdep_quirks(int *quirks); 471 472 uint32_t hpet_get_uid(device_t dev); 473 474 /* Battery Abstraction. */ 475 struct acpi_battinfo; 476 477 int acpi_battery_register(device_t dev); 478 int acpi_battery_remove(device_t dev); 479 int acpi_battery_get_units(void); 480 int acpi_battery_get_info_expire(void); 481 int acpi_battery_bst_valid(struct acpi_bst *bst); 482 int acpi_battery_bif_valid(struct acpi_bif *bif); 483 int acpi_battery_get_battinfo(device_t dev, 484 struct acpi_battinfo *info); 485 486 /* Embedded controller. */ 487 void acpi_ec_ecdt_probe(device_t); 488 489 /* AC adapter interface. */ 490 int acpi_acad_get_acline(int *); 491 492 /* Package manipulation convenience functions. */ 493 #define ACPI_PKG_VALID(pkg, size) \ 494 ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \ 495 (pkg)->Package.Count >= (size)) 496 int acpi_PkgInt(ACPI_OBJECT *res, int idx, UINT64 *dst); 497 int acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst); 498 int acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size); 499 int acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type, 500 int *rid, struct resource **dst, u_int flags); 501 int acpi_PkgFFH_IntelCpu(ACPI_OBJECT *res, int idx, int *vendor, 502 int *class, uint64_t *address, int *accsize); 503 ACPI_HANDLE acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj); 504 505 /* 506 * Base level for BUS_ADD_CHILD. Special devices are added at orders less 507 * than this, and normal devices at or above this level. This keeps the 508 * probe order sorted so that things like sysresource are available before 509 * their children need them. 510 */ 511 #define ACPI_DEV_BASE_ORDER 100 512 513 /* Default maximum number of tasks to enqueue. */ 514 #ifndef ACPI_MAX_TASKS 515 #define ACPI_MAX_TASKS MAX(32, MAXCPU * 4) 516 #endif 517 518 /* Default number of task queue threads to start. */ 519 #ifndef ACPI_MAX_THREADS 520 #define ACPI_MAX_THREADS 3 521 #endif 522 523 /* Use the device logging level for ktr(4). */ 524 #define KTR_ACPI KTR_DEV 525 526 SYSCTL_DECL(_debug_acpi); 527 528 /* 529 * Parse and use proximity information in SRAT and SLIT. 530 */ 531 int acpi_pxm_init(int ncpus, vm_paddr_t maxphys); 532 void acpi_pxm_parse_tables(void); 533 void acpi_pxm_set_mem_locality(void); 534 void acpi_pxm_set_cpu_locality(void); 535 int acpi_pxm_get_cpu_locality(int apic_id); 536 void acpi_pxm_free(void); 537 538 /* 539 * Map a PXM to a VM domain. 540 * 541 * Returns the VM domain ID if found, or -1 if not found / invalid. 542 */ 543 int acpi_map_pxm_to_vm_domainid(int pxm); 544 int acpi_get_cpus(device_t dev, device_t child, enum cpu_sets op, 545 size_t setsize, cpuset_t *cpuset); 546 int acpi_get_domain(device_t dev, device_t child, int *domain); 547 548 #ifdef __aarch64__ 549 /* 550 * ARM specific ACPI interfaces, relating to IORT table. 551 */ 552 int acpi_iort_map_pci_msi(u_int seg, u_int rid, u_int *xref, u_int *devid); 553 int acpi_iort_its_lookup(u_int its_id, u_int *xref, int *pxm); 554 #endif 555 #endif /* _KERNEL */ 556 #endif /* !_ACPIVAR_H_ */ 557