usr/src/uts/common/sys/epm.h

   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 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #ifndef _SYS_EPM_H
  27 #define _SYS_EPM_H
  28
  29 #include <sys/pm.h>
  30 #include <sys/dditypes.h>
  31 #include <sys/devops.h>
  32 #include <sys/ddi_impldefs.h>
  33 #include <sys/taskq.h>
  34 #include <sys/tzfile.h>
  35
  36 /*
  37  * XXXX
  38  * Do we really need this include?  It may be leftover from early CPUPM code.
  39  * #include <sys/processor.h>
  40  */
  41
  42 #ifdef  __cplusplus
  43 extern "C" {
  44 #endif
  45
  46 #ifdef  _KERNEL
  47
  48 /*
  49  * epm.h:       Function prototypes and data structs for kernel pm functions.
  50  */
  51
  52 void e_pm_props(dev_info_t *);
  53 int e_new_pm_props(dev_info_t *);
  54
  55 #define PM_LEVEL_UPONLY (-2)    /* only raise power level */
  56 #define PM_LEVEL_DOWNONLY (-3)  /* only lower power level */
  57 #define PM_LEVEL_EXACT (-4)     /* wants exact power level */
  58
  59 /*
  60  * Values used by e_pm_props and friends, found in devi_pm_flags
  61  */
  62 #define PMC_NEEDS_SR            0x00001 /* do suspend/resume despite no "reg" */
  63 #define PMC_NO_SR               0x00002 /* don't suspend/resume despite "reg" */
  64 #define PMC_PARENTAL_SR         0x00004 /* call up tree to suspend/resume */
  65 #define PMC_WANTS_NOTIFY        0x00008 /* notify if child pwr level changes */
  66 #define PMC_BC                  0x00010 /* no pm-components, backwards compat */
  67 #define PMC_COMPONENTS_DONE     0x00020 /* parsed pm-components */
  68 #define PMC_COMPONENTS_FAILED   0x00040 /* failed parsing pm-components */
  69 #define PMC_SUSPENDED           0x00080 /* device has been suspended */
  70 #define PMC_DEF_THRESH          0x00100 /* thresholds are default */
  71 #define PMC_DEV_THRESH          0x00200 /* SET_THRESHOLD ioctl seen */
  72 #define PMC_COMP_THRESH         0x00400 /* relative threshold set */
  73 #define PMC_NEXDEF_THRESH       0x00800 /* relative threshold set for nexus */
  74 #define PMC_NOPMKID             0x01000 /* non-pm'd child of pm'd parent */
  75 #define PMC_NO_INVOL            0x02000 /* no pm without driver's consent */
  76 #define PMC_VOLPMD              0x04000 /* went down voluntarily */
  77 #define PMC_SKIP_BRINGUP        0x08000 /* Skipped a dependency bringup */
  78
  79 /*
  80  * A node which is the console frame buffer, and should not be powered down
  81  * automatically because the OBP driver doesn't know how to power it back up
  82  * before using it  (can remove this when prom calls back into kernel to do
  83  * io to console).
  84  */
  85 #define PMC_CONSOLE_FB          0x10000 /* console framebuffer */
  86 #define PMC_NOINVOL_DONE        0x20000 /* processed by pm_noinvol_specd() */
  87 #define PMC_DRIVER_REMOVED      0x40000 /* driver is removed    */
  88 #define PMC_CPU_DEVICE          0x80000 /* device is a power manageable CPU */
  89 #define PMC_CPU_THRESH          0x100000 /* cpu threshold set */
  90
  91 #define PMC_THRESH_ALL  (PMC_DEF_THRESH | PMC_DEV_THRESH | \
  92     PMC_COMP_THRESH | PMC_NEXDEF_THRESH | PMC_CPU_THRESH)
  93 #define PMC_THRESH_NONE ~(PMC_THRESH_ALL)
  94
  95 /* Flags for the component */
  96 #define PM_POWER_OP             0x00001 /* set power in process */
  97 #define PM_PHC_WHILE_SET_POWER  0x00002 /* phc and set power deadlock */
  98
  99 /*
 100  * One of these is attached to each devinfo that is autopm'd.
 101  */
 102 typedef struct pm_scan {
 103         int             ps_idle_down;   /* PMID_XXX flags */
 104         int             ps_scan_flags;  /* scan flags, defined below */
 105         timeout_id_t    ps_scan_id;     /* per dip scan timeout id */
 106 } pm_scan_t;
 107
 108 /*
 109  * ps_scan_flags may take the following values, plus possibly
 110  * more defined.
 111  */
 112 #define PM_SCANNING             0x100   /* scanning: pm_scan_dev is active */
 113 #define PM_SCAN_AGAIN           0x200
 114 #define PM_SCAN_STOP            0x400
 115 #define PM_SCAN_DISPATCHED      0x800
 116
 117 #define PM_DEFAULT_MIN_SCAN     ((clock_t)15) /* Minimum scan interval in sec */
 118 #define PM_CPU_MIN_SCAN         ((clock_t)1) /* Minimum interval for CPUs */
 119
 120 /*
 121  * Power management component definitions, used for tracking idleness of
 122  * devices.  An array of these hangs off the devi_pm_components member of the
 123  * dev_info struct (if initialized by driver and/or auto-pm)
 124  * The array of these structs is followed in the same kmem_zalloc'd chunk by
 125  * the names pointed to by the structs.
 126  */
 127
 128 /*
 129  * This (sub-)struct contains all the info extracted from the pm-components
 130  * property for each component (name of component, names and values of power
 131  * levels supported).  It is in a separate structure to allow it to be handled
 132  * as a struct assignment.
 133  */
 134 typedef struct pm_comp {
 135         char    *pmc_name;              /* name of component */
 136         int     pmc_numlevels;          /* number of power levels supported */
 137         int     *pmc_lvals;             /* numerical values of levels */
 138         int     *pmc_thresh;            /* thresholds in secs, last INT_MAX */
 139         char    **pmc_lnames;           /* human readable names of levels */
 140         /*
 141          * This part is just bookkeeping for the storage space involved above
 142          * used for copying and freeing the struct members.  This because C
 143          * is really an assembler at heart.
 144          */
 145         size_t  pmc_name_sz;            /* size of name string          */
 146         char    *pmc_lname_buf;         /* buffer holding *pmc_lnames   */
 147         size_t  pmc_lnames_sz;          /* total size of pmc_lname_buf  */
 148 } pm_comp_t;
 149
 150 /*
 151  * Here we have the rest of what we need to know about a component.
 152  */
 153 typedef struct pm_component {
 154         uint_t pmc_flags;               /* flags this component */
 155         uint_t pmc_busycount;           /* for nesting busy calls */
 156         time_t pmc_timestamp;           /* timestamp */
 157         uint_t pmc_norm_pwr;            /* normal power index (or value) */
 158         int pmc_cur_pwr;                /* current power index (or value)  */
 159         int pmc_phc_pwr;                /* prev. value of curpwr (deadlock) */
 160         pm_comp_t pmc_comp;             /* component description */
 161 } pm_component_t;
 162
 163 /*
 164  * All members of this struct are protected by PM_LOCK_DIP(dip).
 165  *
 166  * kidsupcnt counts (the number of components of new-style children at non-zero
 167  * level (unknown counts as non-zero)) + (the number of old-style children with
 168  * component 0 at non-zero level) for parents that have not asked for
 169  * notification.  When kidsupcnt is 0 for a nexus node, then pm scans it,
 170  * otherwise it leaves it alone.
 171  * Parents that ask for notification always get get scanned,
 172  * so we keep their kidsupcnt at zero.
 173  */
 174 typedef struct pm_info {
 175         uint_t          pmi_dev_pm_state; /* PM state of a device */
 176         int             pmi_clone;      /* owner for direct pm'd devs */
 177         int             pmi_levels[2];  /* storage space for 2 levels */
 178         int             *pmi_lp;        /* storage space for >2 levels */
 179         kcondvar_t      pmi_cv;         /* condvar for direct PM access */
 180 } pm_info_t;
 181
 182 /*
 183  * Work request structure for the dependency processing thread.
 184  */
 185 typedef struct pm_dep_wk {
 186         int             pdw_type;               /* Type of request */
 187         int             pdw_wait;               /* caller waits for result */
 188         int             pdw_done;               /* set when req is done */
 189         int             pdw_ret;                /* return value to caller */
 190         int             pdw_pwr;                /* pwr level of keeper */
 191         kcondvar_t      pdw_cv;                 /* cv to wake up caller */
 192         struct          pm_dep_wk *pdw_next;    /* next element */
 193         char            *pdw_keeper;
 194         char            *pdw_kept;
 195 } pm_dep_wk_t;
 196
 197 /*
 198  * Types of work, depends on when it gets called:
 199  */
 200 #define PM_DEP_WK_POWER_ON              1       /* power on */
 201 #define PM_DEP_WK_POWER_OFF             2       /* power off */
 202 #define PM_DEP_WK_DETACH                3       /* detach */
 203 #define PM_DEP_WK_REMOVE_DEP            4       /* dependency removed */
 204 #define PM_DEP_WK_BRINGUP_SELF          5       /* released from direct PM */
 205 #define PM_DEP_WK_RECORD_KEEPER         6       /* PM_ADD_DEPENDENT */
 206 #define PM_DEP_WK_RECORD_KEEPER_PROP    7       /* PM_ADD_DEPENDENT_PROP */
 207 #define PM_DEP_WK_KEPT                  8       /* dep. work as a kept */
 208 #define PM_DEP_WK_KEEPER                9       /* dep. work as a keeper */
 209 #define PM_DEP_WK_ATTACH                10      /* when dip is attached */
 210 #define PM_DEP_WK_CHECK_KEPT            11      /* check if this is a kept */
 211 #define PM_DEP_WK_CPR_SUSPEND           12      /* Suspend dep. during CPR */
 212 #define PM_DEP_WK_CPR_RESUME            13      /* Resume dep. after CPR */
 213
 214 /*
 215  * Wait for dependency work to finish or not.
 216  */
 217 #define PM_DEP_WAIT     1
 218 #define PM_DEP_NOWAIT   0
 219
 220 typedef enum pm_canblock
 221 {
 222         PM_CANBLOCK_BLOCK,      /* wait for controlling process action */
 223         PM_CANBLOCK_FAIL,       /* don't wait, fail request */
 224         PM_CANBLOCK_BYPASS      /* don't wait, ignore controlling process */
 225 } pm_canblock_t;
 226
 227 typedef enum pm_cpupm
 228 {
 229         PM_CPUPM_NOTSET,        /* no specific treatment of CPU devices */
 230         PM_CPUPM_POLLING,       /* CPUPM enabled: polling mode */
 231         PM_CPUPM_EVENT,         /* CPUPM enabled: event driven mode */
 232         PM_CPUPM_DISABLE        /* do not power manage CPU devices */
 233 } pm_cpupm_t;
 234
 235 #define PPM(dip) ((dev_info_t *)DEVI(dip)->devi_pm_ppm)
 236
 237 /*
 238  * The power request struct uses for the DDI_CTLOPS_POWER busctl.
 239  *
 240  * Note: When changing this enum it is necessary to maintain binary
 241  * compatibility with older versions.  To insure that, add new values only
 242  * at the end and refrain from deleting any existing values.
 243  */
 244 typedef enum {
 245         PMR_SET_POWER = 1,              /* called ddi_power (obsolete)  */
 246         PMR_SUSPEND,                    /* parental suspend             */
 247         PMR_RESUME,                     /* parental resume              */
 248         PMR_PRE_SET_POWER,              /* parent's "pre" notification  */
 249         PMR_POST_SET_POWER,             /* parent's "post" notification */
 250         PMR_PPM_SET_POWER,              /* platform pm set power        */
 251         PMR_PPM_ATTACH,                 /* ppm attach notify - unused   */
 252         PMR_PPM_DETACH,                 /* ppm detach notify - unused   */
 253         PMR_PPM_POWER_CHANGE_NOTIFY,    /* ppm level change notify      */
 254         PMR_REPORT_PMCAP,               /* report pm capability         */
 255         PMR_CHANGED_POWER,              /* parent's power_has_changed notif. */
 256         PMR_PPM_PRE_PROBE,              /* ppm pre probe notify         */
 257         PMR_PPM_POST_PROBE,             /* ppm post probe notify        */
 258         PMR_PPM_PRE_ATTACH,             /* ppm pre attach notify        */
 259         PMR_PPM_POST_ATTACH,            /* ppm post pm attach notify    */
 260         PMR_PPM_PRE_DETACH,             /* ppm pre pm detach notify     */
 261         PMR_PPM_POST_DETACH,            /* ppm post pm detach notify    */
 262         PMR_PPM_UNMANAGE,               /* device being unmanaged       */
 263         PMR_PPM_PRE_RESUME,             /* ppm resume notify            */
 264         PMR_PPM_ALL_LOWEST,             /* ppm all lowest power notify  */
 265         PMR_PPM_LOCK_POWER,             /* ppm lock power               */
 266         PMR_PPM_UNLOCK_POWER,           /* ppm unlock power             */
 267         PMR_PPM_TRY_LOCK_POWER,         /* ppm try lock power           */
 268         PMR_PPM_INIT_CHILD,             /* ppm init child notify        */
 269         PMR_PPM_UNINIT_CHILD,           /* ppm uninit child notify      */
 270         PMR_PPM_POWER_LOCK_OWNER,       /* ppm power lock owner's address */
 271         PMR_PPM_ENTER_SX,               /* ppm: enter ACPI S[2-4] state */
 272         PMR_PPM_EXIT_SX,                /* ppm: enter ACPI S[2-4] state */
 273         PMR_PPM_SEARCH_LIST             /* ppm: search tuple list       */
 274 } pm_request_type;
 275
 276 /*
 277  * When changing the elements of the union below it is necessary to
 278  * maintain binary compatibility with older versions.  Refrain from
 279  * deleting existing elements of the union or modifying their contents.
 280  * Avoid increasing the total size of this structure if new elements
 281  * must be added.
 282  */
 283 typedef struct power_req {
 284         pm_request_type request_type;
 285         union req {
 286                 /*
 287                  * PMR_SET_POWER (obsolete)
 288                  */
 289                 struct set_power_req {
 290                         dev_info_t      *who;
 291                         int             cmpt;
 292                         int             level;
 293                 } set_power_req;
 294                 /*
 295                  * PMR_SUSPEND
 296                  */
 297                 struct suspend_req {
 298                         dev_info_t      *who;
 299                         ddi_detach_cmd_t cmd;
 300                 } suspend_req;
 301                 /*
 302                  * PMR_PPM_PRE_RESUME or PMR_RESUME
 303                  */
 304                 struct resume_req {
 305                         dev_info_t      *who;
 306                         ddi_attach_cmd_t cmd;
 307                 } resume_req;
 308                 /*
 309                  * PMR_PRE_SET_POWER
 310                  */
 311                 struct pre_set_power_req {
 312                         dev_info_t      *who;
 313                         int             cmpt;
 314                         int             old_level;
 315                         int             new_level;
 316                 } pre_set_power_req;
 317                 /*
 318                  * PMR_POST_SET_POWER
 319                  */
 320                 struct post_set_power_req {
 321                         dev_info_t      *who;
 322                         int             cmpt;
 323                         int             old_level;
 324                         int             new_level;
 325                         int             result;         /* driver's return */
 326                 } post_set_power_req;
 327                 /*
 328                  * PMR_PPM_SET_POWER
 329                  */
 330                 struct ppm_set_power_req {
 331                         dev_info_t      *who;
 332                         int             cmpt;
 333                         int             old_level;
 334                         int             new_level;
 335                         pm_canblock_t   canblock;
 336                         void            *cookie;
 337                 } ppm_set_power_req;
 338                 /*
 339                  * PMR_PPM_POWER_CHANGE_NOTIFY
 340                  */
 341                 struct ppm_notify_level_req {
 342                         dev_info_t      *who;
 343                         int             cmpt;
 344                         int             old_level;
 345                         int             new_level;
 346                 } ppm_notify_level_req;
 347                 /*
 348                  * PMR_REPORT_PMCAP
 349                  */
 350                 struct report_pmcap_req {
 351                         dev_info_t      *who;
 352                         int             cap;
 353                         void            *arg;
 354                 } report_pmcap_req;
 355                 /*
 356                  * PMR_CHANGED_POWER
 357                  */
 358                 struct changed_power_req {
 359                         dev_info_t      *who;
 360                         int             cmpt;
 361                         int             old_level;
 362                         int             new_level;
 363                         int             result;
 364                 } changed_power_req;
 365                 /*
 366                  * PMR_PPM_PRE_PROBE, PMR_PPM_POST_PROBE, PMR_PPM_PRE_ATTACH,
 367                  * PMR_PPM_POST_ATTACH, PMR_PPM_PRE_DETACH, PMR_PPM_POST_DETACH
 368                  * PMR_PPM_INIT_CHILD, PMR_PPM_UNINIT_CHILD, or PMR_PPM_UNMANAGE
 369                  */
 370                 struct ppm_config_req {
 371                         dev_info_t      *who;
 372                         int             result;         /* post only */
 373                 } ppm_config_req;
 374                 /*
 375                  * PMR_PPM_ALL_LOWEST
 376                  */
 377                 struct ppm_all_lowest_req {
 378                         int             mode;
 379                 } ppm_all_lowest_req;
 380                 /*
 381                  * PMR_PPM_LOCK_POWER, PMR_PPM_TRY_LOCK_POWER
 382                  */
 383                 struct ppm_lock_power_req {
 384                         dev_info_t      *who;
 385                         int             *circp;
 386                 } ppm_lock_power_req;
 387                 /*
 388                  * PMR_PPM_UNLOCK_POWER
 389                  */
 390                 struct ppm_unlock_power_req {
 391                         dev_info_t      *who;
 392                         int             circ;
 393                 } ppm_unlock_power_req;
 394                 /*
 395                  * PMR_PPM_POWER_LOCK_OWNER
 396                  */
 397                 struct ppm_power_lock_owner_req {
 398                         dev_info_t      *who;
 399                         kthread_t       *owner;
 400                 } ppm_power_lock_owner_req;
 401                 /*
 402                  * PMR_PPM_POWER_ENTER_SX
 403                  */
 404                 struct ppm_power_enter_sx_req {
 405                         int     sx_state;       /* S3, S4 */
 406                         int     test_point;     /* test point */
 407                         uint64_t wakephys;      /* restart vector phys addr */
 408                         void *psr;              /* PSM (apic) state buffer */
 409                 } ppm_power_enter_sx_req;
 410                 /*
 411                  * PMR_PPM_SEARCH_LIST
 412                  */
 413                 struct ppm_search_list {
 414                         pm_searchargs_t *searchlist;
 415                         int             result;
 416                 } ppm_search_list_req;
 417         } req;
 418 } power_req_t;
 419
 420 #define S3      3
 421 #define S4      4
 422
 423 extern int cpr_test_point;
 424 extern major_t cpr_device;
 425
 426 #define LOOP_BACK_NONE  0
 427 #define LOOP_BACK_PASS  1
 428 #define LOOP_BACK_FAIL  2
 429 #define FORCE_SUSPEND_TO_RAM    3
 430 #define DEVICE_SUSPEND_TO_RAM   4
 431
 432 /*
 433  * Struct passed as arg to appm_ioctl
 434  */
 435 typedef struct s3_args {
 436         int             s3a_state;      /* S3, S4 */
 437         int             s3a_test_point; /* test point */
 438         uint64_t        s3a_wakephys;   /* restart vector physical addr */
 439         void            *s3a_psr;       /* apic state save buffer */
 440 } s3a_t;
 441
 442 /*
 443  * Structure used by the following bus_power operations:
 444  *
 445  *      BUS_POWER_PRE_NOTIFICATION
 446  *      BUS_POWER_POST_NOTIFICATION
 447  *      BUS_POWER_CHILD_PWRCHG
 448  */
 449 typedef struct pm_bp_child_pwrchg {
 450         dev_info_t      *bpc_dip;       /* dip of the target device */
 451         char            *bpc_path;      /* path to the target device */
 452         int             bpc_comp;       /* component changing power */
 453         int             bpc_olevel;     /* old power level */
 454         int             bpc_nlevel;     /* new power level */
 455         void            *bpc_private;   /* PM framework private */
 456 } pm_bp_child_pwrchg_t;
 457
 458 /*
 459  * Structure used by the BUS_POWER_NEXUS_PWRUP operation
 460  */
 461 typedef struct pm_bp_nexus_pwrup {
 462         dev_info_t      *bpn_dip;       /* dip of the nexus device */
 463         int             bpn_comp;       /* component powering up */
 464         int             bpn_level;      /* new power level */
 465         void            *bpn_private;   /* PM framework private */
 466 } pm_bp_nexus_pwrup_t;
 467
 468 /*
 469  * Structure used by the BUS_POWER_HAS_CHANGED operation
 470  */
 471 typedef struct pm_bp_has_changed {
 472         dev_info_t      *bphc_dip;      /* dip of the target device */
 473         char            *bphc_path;     /* path to the target device */
 474         int             bphc_comp;      /* component changing power */
 475         int             bphc_olevel;    /* old power level */
 476         int             bphc_nlevel;    /* new power level */
 477         void            *bphc_private;  /* PM framework private */
 478 } pm_bp_has_changed_t;
 479
 480 /*
 481  * Commands indicating which activity is requiring an
 482  * update to the noinvol counters.
 483  */
 484 #define PM_BP_NOINVOL_ATTACH    1
 485 #define PM_BP_NOINVOL_DETACH    2
 486 #define PM_BP_NOINVOL_REMDRV    3
 487 #define PM_BP_NOINVOL_CFB       4
 488 #define PM_BP_NOINVOL_POWER     5
 489
 490 /*
 491  * Structure used by the BUS_POWER_NOINVOL operation.
 492  */
 493 typedef struct pm_bp_noinvol {
 494         dev_info_t      *bpni_dip;      /* dip of the target device */
 495         char            *bpni_path;     /* path to the target device */
 496         int             bpni_cmd;       /* how to update the counters */
 497         int             bpni_volpmd;    /* volpmd of target device */
 498         int             bpni_wasvolpmd; /* whether to update volpmd */
 499         void            *bpni_private;  /* PM framework private */
 500 } pm_bp_noinvol_t;
 501
 502 /*
 503  * This struct is used by the code that makes a PMR_PPM_SET_POWER request
 504  * to ppm. Devices that changed power other than the primary device (which
 505  * was requested) are passed back to the pm framework through this
 506  * structure.
 507  */
 508 typedef struct pm_ppm_devlist {
 509         dev_info_t      *ppd_who;
 510         int             ppd_cmpt;
 511         int             ppd_old_level;
 512         int             ppd_new_level;
 513         struct pm_ppm_devlist   *ppd_next;
 514 } pm_ppm_devlist_t;
 515
 516 /*
 517  * This struct is used by the code that brings up parents and notifies
 518  * ppm drivers across probe/attach/detach (pm_pre/post_probe/attach/detach())
 519  */
 520 typedef struct pm_ppm_cookie {
 521         dev_info_t              *ppc_dip;       /* dip of target node */
 522         dev_info_t              *ppc_pdip;      /* parent's dip */
 523         dev_info_t              *ppc_ppm;       /* interested ppm driver */
 524         int                     ppc_cmd;        /* attach/detach cmd */
 525 } pm_ppm_cookie_t;
 526
 527 /*
 528  * This struct records one dependency (a device keeps another or others up)
 529  * pdr_size includes size of strings.
 530  */
 531 typedef struct pm_dep_rec {
 532         char *pdr_keeper;               /* physpath of device keeping up */
 533         char *pdr_kept;                 /* physpath or property name */
 534         char **pdr_kept_paths;          /* array of kept devices' paths */
 535         struct pm_dep_rec *pdr_next;    /* next dependency device */
 536         size_t pdr_size;                /* size to kmem_free */
 537         major_t pdr_major;              /* major of kept driver (not props) */
 538         int pdr_isprop;                 /* true if kept is property name */
 539         int pdr_kept_count;             /* how many kept altogether */
 540         int pdr_satisfied;              /* true if in force (not properties) */
 541 } pm_pdr_t;
 542
 543
 544 /*
 545  * This struct records threshold information about a single component
 546  */
 547 typedef struct pm_thresh_entry {
 548         int pte_numthresh;
 549         int *pte_thresh;
 550 } pm_pte_t;
 551
 552 /*
 553  * Note that this header and its array of entry structs with their arrays
 554  * of thresholds and string storage for physpath are all kmem_alloced in one
 555  * chunk for easy freeing ptr_size is the size of that chunk
 556  */
 557 typedef struct pm_thresh_rec {
 558         char                    *ptr_physpath;  /* identifies node */
 559         struct pm_thresh_rec    *ptr_next;
 560         int                     ptr_numcomps;   /* number of components */
 561         size_t                  ptr_size;       /* total size for kmem_free */
 562         pm_pte_t                *ptr_entries;
 563 } pm_thresh_rec_t;
 564
 565 /*
 566  * pmi_dev_pm_state state bits:
 567  */
 568
 569 /*
 570  * a direct-pm device, not scanned, but controlled by a process
 571  */
 572 #define PM_DIRECT       0x1
 573 /*
 574  * autopm is suspended while waiting to see if detach succeeds
 575  */
 576 #define PM_DETACHING    0x2
 577
 578 /*
 579  * An all_to_normal operation for an autopm device that is detaching, is
 580  * deferred in case the detach fails.
 581  */
 582 #define PM_ALLNORM_DEFERRED     0x4
 583
 584 #define PM_GET_PM_INFO(dip) (DEVI(dip)->devi_pm_info)
 585 #define PM_GET_PM_SCAN(dip) (DEVI(dip)->devi_pm_scan)
 586
 587 #define PM_NUMCMPTS(dip) (DEVI(dip)->devi_pm_num_components)
 588 #define PM_CP(dip, comp) (&DEVI(dip)->devi_pm_components[comp])
 589
 590 /*
 591  * Returns true if the device specified by dip is directly power managed
 592  */
 593 #define PM_ISDIRECT(dip) \
 594         (((pm_info_t *)PM_GET_PM_INFO(dip))->pmi_dev_pm_state & PM_DIRECT)
 595
 596 /*
 597  * Returns true if the device specified by dip is an old node for which we
 598  * provide backwards compatible behavior (e.g. no pm-components property).
 599  */
 600 #define PM_ISBC(dip) (DEVI(dip)->devi_pm_flags & PMC_BC)
 601
 602 /*
 603  * Returns true if we have skipped a dependency bringup on this dip.
 604  */
 605 #define PM_SKBU(dip) (DEVI(dip)->devi_pm_flags & PMC_SKIP_BRINGUP)
 606
 607 /*
 608  * Returns true if device specified by dip is a power manageable CPU.
 609  */
 610 #define PM_ISCPU(dip) (DEVI(dip)->devi_pm_flags & PMC_CPU_DEVICE)
 611
 612 /*
 613  * Returns true if cpupm is enabled in event driven mode.
 614  */
 615 #define PM_EVENT_CPUPM (cpupm == PM_CPUPM_EVENT)
 616
 617 /*
 618  * Returns true if cpupm is enabled in polling mode.
 619  */
 620 #define PM_POLLING_CPUPM (cpupm == PM_CPUPM_POLLING)
 621
 622 /*
 623  * Returns true if cpupm operating using the default mode.
 624  */
 625 #define PM_DEFAULT_CPUPM (cpupm == cpupm_default_mode)
 626
 627 /*
 628  * Returns true if is disabled.
 629  */
 630 #define PM_CPUPM_DISABLED (cpupm == PM_CPUPM_DISABLE)
 631
 632 /*
 633  * If ((autopm is enabled and
 634  *      (CPUPM is not disabled and we're not in event mode, or it isn't a cpu))
 635  *        OR
 636  *      (CPUPM are enabled and it is one))
 637  */
 638 #define PM_SCANABLE(dip) ((autopm_enabled && \
 639         ((!PM_CPUPM_DISABLED && !PM_EVENT_CPUPM) || !PM_ISCPU(dip))) || \
 640         (PM_POLLING_CPUPM && PM_ISCPU(dip)))
 641
 642 #define PM_NOT_ALL_LOWEST       0x0     /* not all components are at lowest */
 643 #define PM_ALL_LOWEST           0x1     /* all components are at lowest lvl */
 644
 645 #define PM_ADDR(dip)    (ddi_get_name_addr(dip) ? ddi_get_name_addr(dip) : "")
 646 #define PM_NAME(dip)    (ddi_binding_name(dip))
 647 #define PM_NODE(dip)    (ddi_node_name(dip))
 648 #define PM_INST(dip)    (ddi_get_instance(dip))
 649 #define PM_DEVICE(dip)  PM_NAME(dip), PM_ADDR(dip), PM_NODE(dip), PM_INST(dip)
 650
 651 #ifdef  DEBUG
 652 /*
 653  * Flags passed to PMD to enable debug printfs.  If the same flag is set in
 654  * pm_debug below then the message is printed.  The most generally useful
 655  * ones are the first 3 or 4.
 656  */
 657 #define PMD_ERROR       0x0000001
 658 #define PMD_FAIL        0x0000002
 659 #define PMD_IOCTL       0x0000004
 660 #define PMD_SCAN        0x0000008
 661 #define PMD_RESCAN      0x0000010
 662 #define PMD_REMINFO     0x0000020
 663 #define PMD_NAMETODIP   0x0000040
 664 #define PMD_CLOSE       0x0000080
 665 #define PMD_DIN         0x0000100       /* Dev Is Needed */
 666 #define PMD_PMC         0x0000200       /* for testing with sun4m pmc driver */
 667 #define PMD_PPM         0x0000400
 668 #define PMD_DEP         0x0000800       /* dependency processing */
 669 #define PMD_IDLEDOWN    0x0001000
 670 #define PMD_SET         0x0002000
 671 #define PMD_BRING       0x0004000
 672 #define PMD_ALLNORM     0x0008000
 673 #define PMD_REMDEV      0x0010000
 674 #define PMD_LEVEL       0x0020000
 675 #define PMD_THRESH      0x0040000
 676 #define PMD_DPM         0x0080000       /* Direct Power Management */
 677 #define PMD_NORM        0x0100000
 678 #define PMD_STATS       0x0200000
 679 #define PMD_DEREG       0x0400000
 680 #define PMD_KEEPS       0x0800000
 681 #define PMD_KIDSUP      0x1000000
 682 #define PMD_TCHECK      0x2000000
 683 #define PMD_NOINVOL     0x4000000
 684 #define PMD_CFB         0x8000000       /* console fb pm */
 685 #define PMD_DHR         0x10000000      /* driver hold/rele changes */
 686 #define PMD_PIL         0x20000000      /* print out PIL when calling power */
 687 #define PMD_PHC         0x40000000      /* pm_power_has_changed messages */
 688 #define PMD_LOCK        0x80000000
 689 #define PMD_SX          0x80000000      /* ACPI S[1234] states */
 690 #define PMD_PROTO       PMD_SX          /* and other Prototype stuff */
 691
 692 extern uint_t   pm_debug;
 693 extern uint_t   pm_divertdebug;
 694 /*PRINTFLIKE1*/
 695 extern void     pm_log(const char *fmt, ...) __KPRINTFLIKE(1);
 696
 697 #if !defined(__sparc)
 698 /*
 699  * On non-sparc machines, PMDDEBUG isn't as big a deal as Sparc, so we
 700  * define PMDDEUG here for use on non-sparc platforms.
 701  */
 702 #define PMDDEBUG
 703 #endif /* !__sparc */
 704
 705 #ifdef PMDDEBUG
 706 #define PMD(level, arglist) {                   \
 707         if (pm_debug & (level)) {               \
 708                 pm_log arglist;                 \
 709         }                                       \
 710 }
 711 #else /* !PMDDEBUG */
 712 #define PMD(level, arglist)     ((void)0);
 713 #endif /* PMDDEBUG */
 714 #ifndef sparc
 715 extern clock_t pt_sleep;
 716 /* code is char hex number to display on POST LED */
 717 #define PT(code) {outb(0x80, (char)code); drv_usecwait(pt_sleep); }
 718 #else
 719 #define PT(code)
 720 #endif
 721 #else
 722 #define PMD(level, arglist)
 723 #define PT(code)
 724 #endif
 725 /*
 726  * Code Value   Indication
 727  *
 728  */
 729 #define PT_SPL7         0x01    /* pm_suspend spl7 */
 730 #define PT_PMSRET       0x02    /* pm_suspend returns */
 731 #define PT_PPMCTLOP     0x03    /* invoking ppm_ctlops */
 732 #define PT_ACPISDEV     0x04    /* acpi suspend devices */
 733 #define PT_IC           0x05    /* acpi intr_clear */
 734 #define PT_1to1         0x06    /* 1:1 mapping */
 735 #define PT_SC           0x07    /* save context */
 736 #define PT_SWV          0x08    /* set waking vector */
 737 #define PT_SWV_FAIL     0x09    /* set waking vector failed */
 738 #define PT_EWE          0x0a    /* enable wake events */
 739 #define PT_EWE_FAIL     0x0b    /* enable wake events failed */
 740 #define PT_RTCW         0x0c    /* setting rtc wakeup */
 741 #define PT_RTCW_FAIL    0x0d    /* setting rtc wakeup failed */
 742 #define PT_TOD          0x0e    /* setting tod */
 743 #define PT_SXP          0x0f    /* sx prep */
 744 #define PT_SXE          0x10    /* sx enter */
 745 #define PT_SXE_FAIL     0x11    /* sx enter failed */
 746 #define PT_INSOM        0x12    /* insomnia label */
 747 #define PT_WOKE         0x20    /* woke up */
 748 #define PT_UNDO1to1     0x21    /* Undo 1:1 mapping */
 749 #define PT_LSS          0x22    /* leave sleep state */
 750 #define PT_LSS_FAIL     0x23    /* leave sleep state failed */
 751 #define PT_CPB          0x24    /* clear power button event */
 752 #define PT_CPB_FAIL     0x25    /* clear power button event failed */
 753 #define PT_DRTC_FAIL    0x26    /* disable rtc fails */
 754 #define PT_ACPIREINIT   0x27    /* reinit apic */
 755 #define PT_ACPIRESTORE  0x28    /* restore apic */
 756 #define PT_INTRRESTORE  0x28    /* restore interrupts */
 757 #define PT_RESDEV       0x2a    /* ressume acpi devices */
 758 #define PT_CPU          0x2b    /* init_cpu_syscall */
 759 #define PT_PRESUME      0x30    /* pm_resume entered */
 760 #define PT_RSUS         0x31    /* pm_resume "suspended" */
 761 #define PT_RKERN        0x32    /* pm_resume "kernel" */
 762 #define PT_RDRV         0x33    /* pm_resume "driver" */
 763 #define PT_RDRV_FAIL    0x34    /* pm_resume "driver" failed */
 764 #define PT_RRNOINVOL    0x35    /* pm_resume "reattach_noinvol" */
 765 #define PT_RUSER        0x36    /* pm_resume "user" */
 766 #define PT_RAPMSIG      0x37    /* pm_resume APM/SRN signal */
 767 #define PT_RMPO         0x38    /* pm_resume "mp_online" */
 768 #define PT_RDONE        0x39    /* pm_resume done */
 769
 770 extern void     pm_detaching(dev_info_t *);
 771 extern void     pm_detach_failed(dev_info_t *);
 772 extern int      pm_power(dev_info_t *, int, int);
 773 extern int      pm_unmanage(dev_info_t *);
 774 extern void     pm_rem_info(dev_info_t *);
 775 extern int      pm_get_norm_pwrs(dev_info_t *, int **, size_t *);
 776 extern dev_info_t *pm_name_to_dip(char *, int);
 777 extern int      pm_power_up(dev_info_t *, int, int, int, pm_info_t *);
 778 extern int      pm_default_idle_threshold;
 779 extern void     pm_set_device_threshold(dev_info_t *, int, int);
 780 extern int      pm_valid_power(dev_info_t *, int, int);
 781 extern void     pm_lock_power(dev_info_t *, int *);
 782 extern void     pm_unlock_power(dev_info_t *, int);
 783 extern int      pm_try_locking_power(dev_info_t *, int *);
 784 extern void     pm_lock_power_single(dev_info_t *, int *);
 785 extern void     pm_unlock_power_single(dev_info_t *, int);
 786 extern int      pm_try_locking_power_single(dev_info_t *, int *);
 787 extern int      pm_isbc(dev_info_t *dip);
 788 extern int      pm_isdirect(dev_info_t *dip);
 789 extern int      pm_ctlops(dev_info_t *d, dev_info_t *r, ddi_ctl_enum_t o,
 790                         void *a, void *v);
 791 extern int      pm_noinvol_detached(char *);
 792 extern int      pm_init_child(dev_info_t *);
 793 extern int      pm_uninit_child(dev_info_t *);
 794
 795 extern int      pm_all_to_normal(dev_info_t *, pm_canblock_t);
 796 extern int      pm_set_power(dev_info_t *, int, int, int, pm_canblock_t, int,
 797                         int *);
 798 extern void     pm_scan_init(dev_info_t *dip);
 799 extern void     pm_scan_fini(dev_info_t *dip);
 800 extern void     pm_scan_stop(dev_info_t *dip);
 801 extern int      pm_scan_stop_walk(dev_info_t *dip, void *);
 802 extern void     pm_scan(void *);
 803 extern time_t   pm_scan_dev(dev_info_t *dip);
 804 extern void     pm_rescan(void *);
 805 extern int      pm_rescan_walk(dev_info_t *, void *);
 806 extern void     pm_forget_power_level(dev_info_t *);
 807 extern int      pm_pre_config(dev_info_t *, char *);
 808 extern int      pm_pre_unconfig(dev_info_t *, int, int *, char *);
 809 extern void     pm_post_config(dev_info_t *, char *);
 810 extern void     pm_post_unconfig(dev_info_t *, int, char *);
 811 extern void     pm_pre_probe(dev_info_t *, pm_ppm_cookie_t *);
 812 extern void     pm_post_probe(pm_ppm_cookie_t *, int, int);
 813 extern void     pm_post_attach(pm_ppm_cookie_t *, int);
 814 extern void     pm_pre_attach(dev_info_t *, pm_ppm_cookie_t *,
 815                         ddi_attach_cmd_t);
 816 extern void     pm_pre_detach(dev_info_t *, ddi_detach_cmd_t,
 817                         pm_ppm_cookie_t *);
 818 extern void     pm_post_detach(pm_ppm_cookie_t *, int);
 819 extern int      pm_powerup(dev_info_t *);
 820 extern int      pm_all_at_normal(dev_info_t *);
 821 extern int      pm_busop_bus_power(dev_info_t *, void *,
 822                     pm_bus_power_op_t, void *, void *);
 823 extern void     pm_hold_power(dev_info_t *);
 824 extern void     pm_rele_power(dev_info_t *);
 825 extern void     pm_driver_removed(major_t);
 826 extern void     pm_borrow_lock(kthread_t *);
 827 extern void     pm_return_lock(void);
 828 extern int      pm_reattach_noinvol(void);
 829 extern void     pm_reattach_noinvol_fini();
 830 extern void     pm_restore_direct_levels(void);
 831 extern void     pm_save_direct_levels(void);
 832 extern void     pm_cfb_setup(const char *);
 833 extern void     pm_proceed(dev_info_t *, int, int, int);
 834 extern void     pm_get_timestamps(dev_info_t *, time_t *);
 835 extern void     pm_deregister_watcher(int, dev_info_t *);
 836 extern void     pm_dispatch_to_dep_thread(int, char *, char *, int, int *, int);
 837 extern int      e_pm_valid_comp(dev_info_t *, int, pm_component_t **);
 838 extern int      e_pm_valid_info(dev_info_t *, pm_info_t **);
 839 extern int      e_pm_valid_power(dev_info_t *, int, int);
 840 extern void     pm_init_locks(void);
 841 extern int      pm_register_ppm(int (*)(dev_info_t *), dev_info_t *);
 842 extern int      pm_is_cfb(dev_info_t *);
 843 #ifdef  DEBUG
 844 extern int      pm_cfb_is_up(void);
 845 #endif
 846
 847 #ifdef DIPLOCKDEBUG
 848 #define PM_LOCK_DIP(dip)        { PMD(PMD_LOCK, ("dip lock %s@%s(%s#%d) " \
 849                                     "%s %d\n", PM_DEVICE(dip),            \
 850                                     __FILE__, __LINE__))                  \
 851                                     mutex_enter(&DEVI(dip)->devi_pm_lock); }
 852 #define PM_UNLOCK_DIP(dip)      { PMD(PMD_LOCK, ("dip unlock %s@%s(%s#%d) " \
 853                                     "%s %d\n", PM_DEVICE(dip),              \
 854                                     __FILE__, __LINE__))                    \
 855                                     mutex_exit(&DEVI(dip)->devi_pm_lock); }
 856 #else
 857 #define PM_LOCK_DIP(dip)        mutex_enter(&DEVI(dip)->devi_pm_lock)
 858 #define PM_UNLOCK_DIP(dip)      mutex_exit(&DEVI(dip)->devi_pm_lock)
 859 #endif
 860
 861 /*
 862  * These are the same DEBUG or not
 863  */
 864 #define PM_LOCK_BUSY(dip)       mutex_enter(&DEVI(dip)->devi_pm_busy_lock)
 865 #define PM_UNLOCK_BUSY(dip)     mutex_exit(&DEVI(dip)->devi_pm_busy_lock)
 866 #define PM_LOCK_POWER(dip, circp)       pm_lock_power(dip, circp)
 867 #define PM_UNLOCK_POWER(dip, circ)      pm_unlock_power(dip, circ)
 868 #define PM_TRY_LOCK_POWER(dip, circp)   pm_try_locking_power(dip, circp)
 869 #define PM_IAM_LOCKING_DIP(dip) (mutex_owned(&DEVI(dip)->devi_pm_lock))
 870
 871 #define PM_DEFAULT_SYS_IDLENESS 1800    /* 30 minutes */
 872
 873 /*
 874  * Codes put into the pr_retval field of pm_rsvp_t that tell pm_block()
 875  * how to proceed
 876  */
 877 #define PMP_SUCCEED     0x1     /* return success, the process did it */
 878 #define PMP_FAIL        0x2     /* return fail, process did something else */
 879 #define PMP_RELEASE     0x3     /* let it go, the process has lost interest */
 880                                 /* also arg to pm_proceed to signal this */
 881 /*
 882  * Values of "style" for e_pm_manage and pm_premanage
 883  */
 884 #define PM_STYLE_NEW            0
 885 #define PM_STYLE_UNKNOWN        1
 886
 887 /*
 888  * Arg passed to pm_proceed that results in PMP_SUCCEED or PMP_FAIL being set
 889  * in pr_retval depending on what is pending
 890  */
 891 #define PMP_SETPOWER    0x4
 892
 893 #define PM_MAX_CLONE    256
 894
 895 typedef struct pm_rsvp {
 896         dev_info_t      *pr_dip;
 897         int             pr_comp;
 898         int             pr_newlevel;
 899         int             pr_oldlevel;
 900         kcondvar_t      pr_cv;          /* a place to sleep */
 901         int             pr_retval;      /* what to do when you wake up */
 902         struct pm_rsvp  *pr_next;
 903         struct pm_rsvp  *pr_prev;
 904 } pm_rsvp_t;
 905
 906 typedef struct psce {   /* pm_state_change_entries */
 907         struct pm_state_change          *psce_first;
 908         struct pm_state_change          *psce_in;
 909         struct pm_state_change          *psce_out;
 910         struct pm_state_change          *psce_last;
 911         int                             psce_overruns;
 912         int                             psce_references;
 913         kmutex_t                        psce_lock;
 914 } psce_t;
 915
 916 typedef struct pscc {                   /* pm_state_change_control */
 917         int             pscc_clone;
 918         dev_info_t      *pscc_dip;
 919         psce_t          *pscc_entries;
 920         struct pscc     *pscc_next;
 921         struct pscc     *pscc_prev;
 922 } pscc_t;
 923
 924 #define PSCCOUNT 128    /* number of state change entries kept per process */
 925
 926 /*
 927  * Struct used to track the existence of devices exporting the
 928  * no-involuntary-power-cycles property, and remember things from their
 929  * devinfo node for later attach.
 930  */
 931 typedef struct pm_noinvol {
 932         struct pm_noinvol       *ni_next;
 933         char                    *ni_path;
 934         major_t                 ni_major;       /* for attaching at cpr time */
 935         uint_t                  ni_flags;       /* selected PMC_* values */
 936         uint_t                  ni_noinvolpm;   /* saved noinvolpm count */
 937         uint_t                  ni_volpmd;      /* saved volpmd count */
 938         uint_t                  ni_wasvolpmd;   /* was vol pm'd at detach */
 939         size_t                  ni_size;
 940         int                     ni_persistent;  /* still around */
 941 } pm_noinvol_t;
 942
 943 #define PMID_IOCTIMER           0x1             /* pm_ioctl sets during timer */
 944 #define PMID_CFBTIMER           0x2             /* cfb sets during timer */
 945 #define PMID_IOCSCAN            0x4             /* pm_ioctl sets during scan */
 946 #define PMID_CFBSCAN            0x8             /* cfb sets during scan */
 947
 948 #define PMID_IOC                (PMID_IOCTIMER | PMID_IOCSCAN)
 949 #define PMID_CFB                (PMID_CFBTIMER | PMID_CFBSCAN)
 950 #define PMID_TIMERS             (PMID_IOCTIMER | PMID_CFBTIMER)
 951 #define PMID_SCANS              (PMID_IOCSCAN | PMID_CFBSCAN)
 952 #define PMID_SCANS_SHIFT        2
 953 #define PMID_SET_SCANS(pmid)    (pmid) |= (((pmid) & PMID_TIMERS) <<    \
 954                                     PMID_SCANS_SHIFT);
 955 #define PMID_IS_IOC(pmid)       ((pmid) & PMID_IOC)
 956 #define PMID_IS_CFB(pmid, dip)  (((pmid) & PMID_CFB) &&                 \
 957                                     (DEVI(dip)->devi_pm_flags &         \
 958                                     (PMC_DEF_THRESH | PMC_NEXDEF_THRESH)))
 959 #define PM_IS_PID(dip)  (PMID_IS_IOC(PM_GET_PM_SCAN(dip)->ps_idle_down) || \
 960         PMID_IS_CFB(PM_GET_PM_SCAN(dip)->ps_idle_down, dip))
 961 #define PM_IS_CFB(dip)          (DEVI(dip)->devi_pm_flags & PMC_CONSOLE_FB)
 962 #define PM_KUC(dip)             (DEVI(dip)->devi_pm_kidsupcnt)
 963 #define PM_CURPOWER(dip, comp)  cur_power(PM_CP(dip, comp))
 964
 965 #define PM_WANTS_NOTIFICATION(dip)                                      \
 966         (DEVI(dip)->devi_pm_flags & PMC_WANTS_NOTIFY)
 967
 968 #define PM_HAS_BUS_POWER(dip)                                           \
 969         ((DEVI(dip)->devi_ops->devo_bus_ops != NULL) &&                 \
 970         (DEVI(dip)->devi_ops->devo_bus_ops->busops_rev >= BUSO_REV_7) &&\
 971         (DEVI(dip)->devi_ops->devo_bus_ops->bus_power != NULL))
 972
 973 #define PM_BUS_POWER_FUNC(dip)                                          \
 974         DEVI(dip)->devi_ops->devo_bus_ops->bus_power
 975
 976 /*
 977  * Structure used to pass down sunpm's private data variables
 978  * through the bus_power bus_op calls
 979  */
 980 typedef struct pm_sp_misc {
 981         pm_canblock_t   pspm_canblock;
 982         int pspm_scan;
 983         int *pspm_errnop;
 984         int pspm_direction;
 985 } pm_sp_misc_t;
 986
 987 /*
 988  * This structure is used in validating that the power level
 989  * of the descendents are off, while a device is powered off.
 990  */
 991 typedef struct pm_desc_pwrchk {
 992         dev_info_t *pdpc_dip;
 993         int pdpc_par_involved;
 994 } pm_desc_pwrchk_t;
 995
 996
 997 /*
 998  * These defines are used by pm_trans_check() to calculate time.
 999  * Mostly copied from "tzfile.h".
1000  */
1001 #define DC_SPY                  (SECSPERDAY * DAYSPERNYEAR)
1002 #define DC_SPW                  (SECSPERDAY * DAYSPERWEEK)
1003 #define DC_SPD                  SECSPERDAY
1004
1005 #define DC_SCSI_YEAR_LEN        4               /* YYYY */
1006 #define DC_SCSI_WEEK_LEN        2               /* WW */
1007 #define DC_SCSI_NPY             5               /* # power-cycle years */
1008
1009 #endif  /* _KERNEL */
1010
1011 #ifdef  __cplusplus
1012 }
1013 #endif
1014
1015 #endif /* _SYS_EPM_H */