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 #include <sys/ktr.h>
40 #include <sys/lock.h>
41 #include <sys/mutex.h>
42 #include <sys/selinfo.h>
43 #include <sys/sx.h>
44 #include <sys/sysctl.h>
45
46 #include <machine/bus.h>
47 #include <machine/resource.h>
48
49 struct apm_clone_data;
50 struct acpi_softc {
51 device_t acpi_dev;
52 struct cdev *acpi_dev_t;
53
54 int acpi_enabled;
55 int acpi_sstate;
56 int acpi_sleep_disabled;
57 int acpi_resources_reserved;
58
59 struct sysctl_ctx_list acpi_sysctl_ctx;
60 struct sysctl_oid *acpi_sysctl_tree;
61 int acpi_power_button_sx;
62 int acpi_sleep_button_sx;
63 int acpi_lid_switch_sx;
64
65 int acpi_standby_sx;
66 int acpi_suspend_sx;
67
68 int acpi_sleep_delay;
69 int acpi_s4bios;
70 int acpi_do_disable;
71 int acpi_verbose;
72 int acpi_handle_reboot;
73
74 vm_offset_t acpi_wakeaddr;
75 vm_paddr_t acpi_wakephys;
76
77 int acpi_next_sstate; /* Next suspend Sx state. */
78 struct apm_clone_data *acpi_clone; /* Pseudo-dev for devd(8). */
79 STAILQ_HEAD(,apm_clone_data) apm_cdevs; /* All apm/apmctl/acpi cdevs. */
80 struct callout susp_force_to; /* Force suspend if no acks. */
81 };
82
83 struct acpi_device {
84 /* ACPI ivars */
85 ACPI_HANDLE ad_handle;
86 void *ad_private;
87 int ad_flags;
88
89 /* Resources */
90 struct resource_list ad_rl;
91 };
92
93 /* Track device (/dev/{apm,apmctl} and /dev/acpi) notification status. */
94 struct apm_clone_data {
95 STAILQ_ENTRY(apm_clone_data) entries;
96 struct cdev *cdev;
97 int flags;
98 #define ACPI_EVF_NONE 0 /* /dev/apm semantics */
99 #define ACPI_EVF_DEVD 1 /* /dev/acpi is handled via devd(8) */
100 #define ACPI_EVF_WRITE 2 /* Device instance is opened writable. */
101 int notify_status;
102 #define APM_EV_NONE 0 /* Device not yet aware of pending sleep. */
103 #define APM_EV_NOTIFIED 1 /* Device saw next sleep state. */
104 #define APM_EV_ACKED 2 /* Device agreed sleep can occur. */
105 struct acpi_softc *acpi_sc;
106 struct selinfo sel_read;
107 };
108
109 #define ACPI_PRW_MAX_POWERRES 8
110
111 struct acpi_prw_data {
112 ACPI_HANDLE gpe_handle;
113 int gpe_bit;
114 int lowest_wake;
115 ACPI_OBJECT power_res[ACPI_PRW_MAX_POWERRES];
116 int power_res_count;
117 };
118
119 /* Flags for each device defined in the AML namespace. */
120 #define ACPI_FLAG_WAKE_ENABLED 0x1
121
122 /* Macros for extracting parts of a PCI address from an _ADR value. */
123 #define ACPI_ADR_PCI_SLOT(adr) (((adr) & 0xffff0000) >> 16)
124 #define ACPI_ADR_PCI_FUNC(adr) ((adr) & 0xffff)
125
126 /*
127 * Entry points to ACPI from above are global functions defined in this
128 * file, sysctls, and I/O on the control device. Entry points from below
129 * are interrupts (the SCI), notifies, task queue threads, and the thermal
130 * zone polling thread.
131 *
132 * ACPI tables and global shared data are protected by a global lock
133 * (acpi_mutex).
134 *
135 * Each ACPI device can have its own driver-specific mutex for protecting
136 * shared access to local data. The ACPI_LOCK macros handle mutexes.
137 *
138 * Drivers that need to serialize access to functions (e.g., to route
139 * interrupts, get/set control paths, etc.) should use the sx lock macros
140 * (ACPI_SERIAL).
141 *
142 * ACPI-CA handles its own locking and should not be called with locks held.
143 *
144 * The most complicated path is:
145 * GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE
146 */
147 extern struct mtx acpi_mutex;
148 #define ACPI_LOCK(sys) mtx_lock(&sys##_mutex)
149 #define ACPI_UNLOCK(sys) mtx_unlock(&sys##_mutex)
150 #define ACPI_LOCK_ASSERT(sys) mtx_assert(&sys##_mutex, MA_OWNED);
151 #define ACPI_LOCK_DECL(sys, name) \
152 static struct mtx sys##_mutex; \
153 MTX_SYSINIT(sys##_mutex, &sys##_mutex, name, MTX_DEF)
154 #define ACPI_SERIAL_BEGIN(sys) sx_xlock(&sys##_sxlock)
155 #define ACPI_SERIAL_END(sys) sx_xunlock(&sys##_sxlock)
156 #define ACPI_SERIAL_ASSERT(sys) sx_assert(&sys##_sxlock, SX_XLOCKED);
157 #define ACPI_SERIAL_DECL(sys, name) \
158 static struct sx sys##_sxlock; \
159 SX_SYSINIT(sys##_sxlock, &sys##_sxlock, name)
160
161 /*
162 * ACPI CA does not define layers for non-ACPI CA drivers.
163 * We define some here within the range provided.
164 */
165 #define ACPI_AC_ADAPTER 0x00010000
166 #define ACPI_BATTERY 0x00020000
167 #define ACPI_BUS 0x00040000
168 #define ACPI_BUTTON 0x00080000
169 #define ACPI_EC 0x00100000
170 #define ACPI_FAN 0x00200000
171 #define ACPI_POWERRES 0x00400000
172 #define ACPI_PROCESSOR 0x00800000
173 #define ACPI_THERMAL 0x01000000
174 #define ACPI_TIMER 0x02000000
175 #define ACPI_OEM 0x04000000
176
177 /*
178 * Constants for different interrupt models used with acpi_SetIntrModel().
179 */
180 #define ACPI_INTR_PIC 0
181 #define ACPI_INTR_APIC 1
182 #define ACPI_INTR_SAPIC 2
183
184 /*
185 * Various features and capabilities for the acpi_get_features() method.
186 * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods.
187 * See the Intel document titled "Intel Processor Vendor-Specific ACPI",
188 * number 302223-007.
189 */
190 #define ACPI_CAP_PERF_MSRS (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */
191 #define ACPI_CAP_C1_IO_HALT (1 << 1) /* Intel C1 "IO then halt" sequence */
192 #define ACPI_CAP_THR_MSRS (1 << 2) /* Intel OnDemand throttling MSRs */
193 #define ACPI_CAP_SMP_SAME (1 << 3) /* MP C1, Px, and Tx (all the same) */
194 #define ACPI_CAP_SMP_SAME_C3 (1 << 4) /* MP C2 and C3 (all the same) */
195 #define ACPI_CAP_SMP_DIFF_PX (1 << 5) /* MP Px (different, using _PSD) */
196 #define ACPI_CAP_SMP_DIFF_CX (1 << 6) /* MP Cx (different, using _CSD) */
197 #define ACPI_CAP_SMP_DIFF_TX (1 << 7) /* MP Tx (different, using _TSD) */
198 #define ACPI_CAP_SMP_C1_NATIVE (1 << 8) /* MP C1 support other than halt */
199 #define ACPI_CAP_SMP_C3_NATIVE (1 << 9) /* MP C2 and C3 support */
200 #define ACPI_CAP_PX_HW_COORD (1 << 11) /* Intel P-state HW coordination */
201 #define ACPI_CAP_INTR_CPPC (1 << 12) /* Native Interrupt Handling for
202 Collaborative Processor Performance Control notifications */
203 #define ACPI_CAP_HW_DUTY_C (1 << 13) /* Hardware Duty Cycling */
204
205 /*
206 * Quirk flags.
207 *
208 * ACPI_Q_BROKEN: Disables all ACPI support.
209 * ACPI_Q_TIMER: Disables support for the ACPI timer.
210 * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the
211 * first APIC and that the MADT should force that by ignoring the PC-AT
212 * compatible flag and ignoring overrides that redirect IRQ 0 to pin 2.
213 */
214 extern int acpi_quirks;
215 #define ACPI_Q_OK 0
216 #define ACPI_Q_BROKEN (1 << 0)
217 #define ACPI_Q_TIMER (1 << 1)
218 #define ACPI_Q_MADT_IRQ0 (1 << 2)
219
220 /*
221 * Note that the low ivar values are reserved to provide
222 * interface compatibility with ISA drivers which can also
223 * attach to ACPI.
224 */
225 #define ACPI_IVAR_HANDLE 0x100
226 #define ACPI_IVAR_UNUSED 0x101 /* Unused/reserved. */
227 #define ACPI_IVAR_PRIVATE 0x102
228 #define ACPI_IVAR_FLAGS 0x103
229
230 /*
231 * Accessor functions for our ivars. Default value for BUS_READ_IVAR is
232 * (type) 0. The <sys/bus.h> accessor functions don't check return values.
233 */
234 #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
235 \
236 static __inline type varp ## _get_ ## var(device_t dev) \
237 { \
238 uintptr_t v = 0; \
239 BUS_READ_IVAR(device_get_parent(dev), dev, \
240 ivarp ## _IVAR_ ## ivar, &v); \
241 return ((type) v); \
242 } \
243 \
244 static __inline void varp ## _set_ ## var(device_t dev, type t) \
245 { \
246 uintptr_t v = (uintptr_t) t; \
247 BUS_WRITE_IVAR(device_get_parent(dev), dev, \
248 ivarp ## _IVAR_ ## ivar, v); \
249 }
250
251 __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE)
252 __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *)
253 __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int)
254
255 void acpi_fake_objhandler(ACPI_HANDLE h, void *data);
256 static __inline device_t
257 acpi_get_device(ACPI_HANDLE handle)
258 {
259 void *dev = NULL;
260 AcpiGetData(handle, acpi_fake_objhandler, &dev);
261 return ((device_t)dev);
262 }
263
264 static __inline ACPI_OBJECT_TYPE
265 acpi_get_type(device_t dev)
266 {
267 ACPI_HANDLE h;
268 ACPI_OBJECT_TYPE t;
269
270 if ((h = acpi_get_handle(dev)) == NULL)
271 return (ACPI_TYPE_NOT_FOUND);
272 if (ACPI_FAILURE(AcpiGetType(h, &t)))
273 return (ACPI_TYPE_NOT_FOUND);
274 return (t);
275 }
276
277 /* Find the difference between two PM tick counts. */
278 static __inline uint32_t
279 acpi_TimerDelta(uint32_t end, uint32_t start)
280 {
281
282 if (end < start && (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) == 0)
283 end |= 0x01000000;
284 return (end - start);
285 }
286
287 #ifdef ACPI_DEBUGGER
288 void acpi_EnterDebugger(void);
289 #endif
290
291 #ifdef ACPI_DEBUG
292 #include <sys/cons.h>
293 #define STEP(x) do {printf x, printf("\n"); cngetc();} while (0)
294 #else
295 #define STEP(x)
296 #endif
297
298 #define ACPI_VPRINT(dev, acpi_sc, x...) do { \
299 if (acpi_get_verbose(acpi_sc)) \
300 device_printf(dev, x); \
301 } while (0)
302
303 /* Values for the device _STA (status) method. */
304 #define ACPI_STA_PRESENT (1 << 0)
305 #define ACPI_STA_ENABLED (1 << 1)
306 #define ACPI_STA_SHOW_IN_UI (1 << 2)
307 #define ACPI_STA_FUNCTIONAL (1 << 3)
308 #define ACPI_STA_BATT_PRESENT (1 << 4)
309
310 #define ACPI_DEVINFO_PRESENT(x, flags) \
311 (((x) & (flags)) == (flags))
312 #define ACPI_DEVICE_PRESENT(x) \
313 ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL)
314 #define ACPI_BATTERY_PRESENT(x) \
315 ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL | \
316 ACPI_STA_BATT_PRESENT)
317
318 /* Callback function type for walking subtables within a table. */
319 typedef void acpi_subtable_handler(ACPI_SUBTABLE_HEADER *, void *);
320
321 BOOLEAN acpi_DeviceIsPresent(device_t dev);
322 BOOLEAN acpi_BatteryIsPresent(device_t dev);
323 ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path,
324 ACPI_HANDLE *result);
325 ACPI_BUFFER *acpi_AllocBuffer(int size);
326 ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp,
327 UINT32 *number);
328 ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path,
329 UINT32 *number);
330 ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path,
331 UINT32 number);
332 ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *obj,
333 void (*func)(ACPI_OBJECT *comp, void *arg), void *arg);
334 ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index,
335 ACPI_RESOURCE **resp);
336 ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf,
337 ACPI_RESOURCE *res);
338 ACPI_STATUS acpi_EvaluateOSC(ACPI_HANDLE handle, uint8_t *uuid,
339 int revision, int count, uint32_t *caps_in,
340 uint32_t *caps_out, bool query);
341 ACPI_STATUS acpi_OverrideInterruptLevel(UINT32 InterruptNumber);
342 ACPI_STATUS acpi_SetIntrModel(int model);
343 int acpi_ReqSleepState(struct acpi_softc *sc, int state);
344 int acpi_AckSleepState(struct apm_clone_data *clone, int error);
345 ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state);
346 int acpi_wake_set_enable(device_t dev, int enable);
347 int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw);
348 ACPI_STATUS acpi_Startup(void);
349 void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h,
350 uint8_t notify);
351 int acpi_bus_alloc_gas(device_t dev, int *type, int *rid,
352 ACPI_GENERIC_ADDRESS *gas, struct resource **res,
353 u_int flags);
354 void acpi_walk_subtables(void *first, void *end,
355 acpi_subtable_handler *handler, void *arg);
356 BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid);
357
358 struct acpi_parse_resource_set {
359 void (*set_init)(device_t dev, void *arg, void **context);
360 void (*set_done)(device_t dev, void *context);
361 void (*set_ioport)(device_t dev, void *context, uint64_t base,
362 uint64_t length);
363 void (*set_iorange)(device_t dev, void *context, uint64_t low,
364 uint64_t high, uint64_t length, uint64_t align);
365 void (*set_memory)(device_t dev, void *context, uint64_t base,
366 uint64_t length);
367 void (*set_memoryrange)(device_t dev, void *context, uint64_t low,
368 uint64_t high, uint64_t length, uint64_t align);
369 void (*set_irq)(device_t dev, void *context, uint8_t *irq,
370 int count, int trig, int pol);
371 void (*set_ext_irq)(device_t dev, void *context, uint32_t *irq,
372 int count, int trig, int pol);
373 void (*set_drq)(device_t dev, void *context, uint8_t *drq,
374 int count);
375 void (*set_start_dependent)(device_t dev, void *context,
376 int preference);
377 void (*set_end_dependent)(device_t dev, void *context);
378 };
379
380 extern struct acpi_parse_resource_set acpi_res_parse_set;
381
382 int acpi_identify(void);
383 void acpi_config_intr(device_t dev, ACPI_RESOURCE *res);
384 ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid,
385 struct resource *res, ACPI_RESOURCE *acpi_res);
386 ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
387 struct acpi_parse_resource_set *set, void *arg);
388 struct resource *acpi_alloc_sysres(device_t child, int type, int *rid,
389 rman_res_t start, rman_res_t end, rman_res_t count,
390 u_int flags);
391
392 /* ACPI event handling */
393 UINT32 acpi_event_power_button_sleep(void *context);
394 UINT32 acpi_event_power_button_wake(void *context);
395 UINT32 acpi_event_sleep_button_sleep(void *context);
396 UINT32 acpi_event_sleep_button_wake(void *context);
397
398 #define ACPI_EVENT_PRI_FIRST 0
399 #define ACPI_EVENT_PRI_DEFAULT 10000
400 #define ACPI_EVENT_PRI_LAST 20000
401
402 typedef void (*acpi_event_handler_t)(void *, int);
403
404 EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t);
405 EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t);
406
407 /* Device power control. */
408 ACPI_STATUS acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable);
409 ACPI_STATUS acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state);
410 int acpi_device_pwr_for_sleep(device_t bus, device_t dev,
411 int *dstate);
412
413 /* APM emulation */
414 void acpi_apm_init(struct acpi_softc *);
415
416 /* Misc. */
417 static __inline struct acpi_softc *
418 acpi_device_get_parent_softc(device_t child)
419 {
420 device_t parent;
421
422 parent = device_get_parent(child);
423 if (parent == NULL)
424 return (NULL);
425 return (device_get_softc(parent));
426 }
427
428 static __inline int
429 acpi_get_verbose(struct acpi_softc *sc)
430 {
431 if (sc)
432 return (sc->acpi_verbose);
433 return (0);
434 }
435
436 char *acpi_name(ACPI_HANDLE handle);
437 int acpi_avoid(ACPI_HANDLE handle);
438 int acpi_disabled(char *subsys);
439 int acpi_machdep_init(device_t dev);
440 void acpi_install_wakeup_handler(struct acpi_softc *sc);
441 int acpi_sleep_machdep(struct acpi_softc *sc, int state);
442 int acpi_wakeup_machdep(struct acpi_softc *sc, int state,
443 int sleep_result, int intr_enabled);
444 int acpi_table_quirks(int *quirks);
445 int acpi_machdep_quirks(int *quirks);
446
447 uint32_t hpet_get_uid(device_t dev);
448
449 /* Battery Abstraction. */
450 struct acpi_battinfo;
451
452 int acpi_battery_register(device_t dev);
453 int acpi_battery_remove(device_t dev);
454 int acpi_battery_get_units(void);
455 int acpi_battery_get_info_expire(void);
456 int acpi_battery_bst_valid(struct acpi_bst *bst);
457 int acpi_battery_bix_valid(struct acpi_bix *bix);
458 int acpi_battery_get_battinfo(device_t dev,
459 struct acpi_battinfo *info);
460
461 /* Embedded controller. */
462 void acpi_ec_ecdt_probe(device_t);
463
464 /* AC adapter interface. */
465 int acpi_acad_get_acline(int *);
466
467 /* Package manipulation convenience functions. */
468 #define ACPI_PKG_VALID(pkg, size) \
469 ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \
470 (pkg)->Package.Count >= (size))
471 #define ACPI_PKG_VALID_EQ(pkg, size) \
472 ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \
473 (pkg)->Package.Count == (size))
474 int acpi_PkgInt(ACPI_OBJECT *res, int idx, UINT64 *dst);
475 int acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst);
476 int acpi_PkgInt16(ACPI_OBJECT *res, int idx, uint16_t *dst);
477 int acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size);
478 int acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type,
479 int *rid, struct resource **dst, u_int flags);
480 int acpi_PkgFFH_IntelCpu(ACPI_OBJECT *res, int idx, int *vendor,
481 int *class, uint64_t *address, int *accsize);
482 ACPI_HANDLE acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj);
483
484 /*
485 * Base level for BUS_ADD_CHILD. Special devices are added at orders less
486 * than this, and normal devices at or above this level. This keeps the
487 * probe order sorted so that things like sysresource are available before
488 * their children need them.
489 */
490 #define ACPI_DEV_BASE_ORDER 100
491
492 /* Default maximum number of tasks to enqueue. */
493 #ifndef ACPI_MAX_TASKS
494 #define ACPI_MAX_TASKS MAX(32, MAXCPU * 4)
495 #endif
496
497 /* Default number of task queue threads to start. */
498 #ifndef ACPI_MAX_THREADS
499 #define ACPI_MAX_THREADS 3
500 #endif
501
502 /* Use the device logging level for ktr(4). */
503 #define KTR_ACPI KTR_DEV
504
505 SYSCTL_DECL(_debug_acpi);
506
507 /*
508 * Map a PXM to a VM domain.
509 *
510 * Returns the VM domain ID if found, or -1 if not found / invalid.
511 */
512 int acpi_map_pxm_to_vm_domainid(int pxm);
513 int acpi_get_cpus(device_t dev, device_t child, enum cpu_sets op,
514 size_t setsize, cpuset_t *cpuset);
515 int acpi_get_domain(device_t dev, device_t child, int *domain);
516
517 #endif /* _KERNEL */
518 #endif /* !_ACPIVAR_H_ */
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