The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/acpica/acpivar.h

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    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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