usr/src/uts/common/sys/ppmvar.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  * Copyright (c) 2009,  Intel Corporation.
  27  * All Rights Reserved.
  28  */
  29
  30 #ifndef _SYS_PPMVAR_H
  31 #define _SYS_PPMVAR_H
  32
  33 #include <sys/epm.h>
  34 #include <sys/sunldi.h>
  35
  36 #ifdef  __cplusplus
  37 extern "C" {
  38 #endif
  39
  40
  41 typedef struct ppm_unit {
  42         dev_info_t      *dip;           /* node dev info */
  43         kmutex_t        lock;           /* global driver lock */
  44         uint_t          states;         /* driver states */
  45         timeout_id_t    led_tid;        /* timeout id for LED */
  46 } ppm_unit_t;
  47
  48 /*
  49  * driver states
  50  */
  51 #define PPM_STATE_SUSPENDED     0x1     /* driver is suspended */
  52
  53 /*
  54  * Check for domain operational
  55  */
  56 #define PPM_DOMAIN_UP(domp)     (!(domp->dflags & PPMD_OFFLINE))
  57
  58 /*
  59  * LED constants
  60  */
  61 #define PPM_LED_PULSE           (drv_usectohz(250000))  /* 0.25 seconds */
  62 #define PPM_LEDON_INTERVAL      (1 * PPM_LED_PULSE)
  63 #define PPM_LEDOFF_INTERVAL     (8 * PPM_LED_PULSE)
  64 #define PPM_LEDON               1       /* (s10) */
  65 #define PPM_LEDOFF              0       /* (s10) */
  66
  67 /*
  68  * internal form of "ppm.conf" data
  69  */
  70 struct ppm_db {
  71         struct ppm_db   *next;
  72         char            *name;          /* device name */
  73         int             plen;           /* strlen before wildcard(s10) */
  74         int             wccnt;          /* upto 2 '*' allowed */
  75         int             wcpos[2];       /* '*' location in pathname */
  76 };
  77 typedef struct ppm_db ppm_db_t;
  78
  79 struct ppm_cdata {
  80         char *name;                     /* property name */
  81         char **strings;                 /* string array */
  82         uint_t cnt;                     /* property count */
  83 };
  84
  85 /*
  86  * ppm device info
  87  */
  88 struct ppm_dev {
  89         struct ppm_dev  *next;
  90         struct ppm_domain *domp;
  91         dev_info_t      *dip;
  92         char            *path;          /* OBP device pathname */
  93         int             cmpt;           /* component number */
  94         int             rplvl;          /* last requested power level */
  95         int             level;          /* actual current power level */
  96         int             lowest;         /* lowest power level for device */
  97         int             highest;        /* highest power level for device */
  98         uint_t          flags;
  99 };
 100 typedef struct ppm_dev ppm_dev_t;
 101
 102 /*
 103  * ppm_dev.flags field
 104  */
 105 #define PPMDEV_PCI66_D2         0x1     /* device support D2 at pci 66mhz */
 106 #define PPMDEV_PCI_PROP_CLKPM   0x2     /* clock can be power managed */
 107 #define PPM_PM_POWEROP          0x10    /* power level change, initiated  */
 108                                         /* from PM is in progress.        */
 109 #define PPM_PHC_WHILE_SET_POWER 0x20    /* power level of a device is     */
 110                                         /* changed through                */
 111                                         /* pm_power_has_changed path      */
 112                                         /* while power level change,      */
 113                                         /* initiated from PM is in        */
 114                                         /* progress.                      */
 115
 116
 117 /*
 118  * per domain record of device _ever_ managed by ppm
 119  */
 120 struct ppm_owned {
 121         struct ppm_owned *next;
 122         char    *path;          /* device pathname */
 123         int     initializing;   /* initializing  flag */
 124 };
 125 typedef struct ppm_owned ppm_owned_t;
 126
 127
 128 /*
 129  * domain control data structure -
 130  *   when you need to do an op for a domain, look up the op in the
 131  *   cmd member of the struct, and then perform the method on the
 132  *   path using iowr cmd with the args specified in val or val and
 133  *   mask or the speed index.
 134  */
 135 struct ppm_dc {
 136         struct ppm_dc   *next;
 137         ldi_handle_t    lh;     /* layered (ldi) handle                 */
 138         char    *path;          /* control device prom pathname         */
 139         uint_t  cmd;            /* search key: op to be performed       */
 140                                 /* one of: PPMDC_CPU_NEXT               */
 141                                 /* PPMDC_CPU_GO, PPMDC_FET_ON,          */
 142                                 /* PPMDC_FET_OFF, PPMDC_LED_ON,         */
 143                                 /* PPMDC_LED_OFF, PPMDC_PCI_ON,         */
 144                                 /* PPMDC_ENTER_S3, PPMDC_PCI_OFF        */
 145                                 /* PPMDC_EXIT_S3 commands               */
 146         uint_t  method;         /* control method / union selector      */
 147                                 /* one of PPMDC_KIO, PPMDC_I2CKIO,      */
 148                                 /* PPMDC_CPUSPEEDKIO                    */
 149
 150         union {
 151                 /* In each sub struct in union, the first three fields  */
 152                 /* must be .iord, .iowr and .val and in such order.     */
 153                 /* The .method field above selects a union sub struct   */
 154                 /* for a particular .cmd operation.                     */
 155                 /* The association between .method and .cmd is platform */
 156                 /* specific, therefore described in ppm.conf file.      */
 157
 158                 /* PPMDC_KIO: simple KIO                                */
 159                 struct m_kio {
 160                         uint_t  iord;   /* IOCTL read cmd               */
 161                         uint_t  iowr;   /* IOCTL write cmd              */
 162                         uint_t  val;    /* ioctl arg                    */
 163                         uint_t  delay;  /* total delay before this      */
 164                                         /* operation can be carried out */
 165                         uint_t  post_delay; /* post delay, if any       */
 166                 } kio;
 167
 168 #ifdef sun4u
 169                 /* PPMDC_I2CKIO: KIO requires 'arg' as struct i2c_gpio  */
 170                 /*    (defined in i2c_client.h)                         */
 171                 struct m_i2ckio {
 172                         uint_t  iord;   /* IOCTL read cmd               */
 173                         uint_t  iowr;   /* IOCTL write cmd              */
 174                         uint_t  val;    /* register content             */
 175                         uint_t  mask;   /* mask to select relevant bits */
 176                                         /* of register content          */
 177                         uint_t  delay;  /* total delay before this      */
 178                                         /* operation can be carried out */
 179                         uint_t  post_delay; /* post delay, if any       */
 180                 } i2c;
 181 #endif
 182
 183                 /* PPMDC_CPUSPEEDKIO, PPMDC_VCORE: cpu estar related    */
 184                 /* simple KIO                                           */
 185                 struct m_cpu {
 186                         uint_t  iord;   /* IOCTL read cmd               */
 187                         uint_t  iowr;   /* IOCTL write cmd              */
 188                         int     val;    /* new register value           */
 189                         uint_t  speeds; /* number of speeds cpu supports */
 190                         uint_t  delay;  /* microseconds post op delay   */
 191                 } cpu;
 192         } m_un;
 193 };
 194 typedef struct ppm_dc ppm_dc_t;
 195
 196 /*
 197  * ppm_dc.cmd field -
 198  */
 199 #define PPMDC_CPU_NEXT          2
 200 #define PPMDC_PRE_CHNG          3
 201 #define PPMDC_CPU_GO            4
 202 #define PPMDC_POST_CHNG         5
 203 #define PPMDC_FET_ON            6
 204 #define PPMDC_FET_OFF           7
 205 #define PPMDC_LED_ON            8
 206 #define PPMDC_LED_OFF           9
 207 #define PPMDC_CLK_ON            10
 208 #define PPMDC_CLK_OFF           11
 209 #define PPMDC_PRE_PWR_OFF       12
 210 #define PPMDC_PRE_PWR_ON        13
 211 #define PPMDC_POST_PWR_ON       14
 212 #define PPMDC_PWR_OFF           15
 213 #define PPMDC_PWR_ON            16
 214 #define PPMDC_RESET_OFF         17
 215 #define PPMDC_RESET_ON          18
 216 #define PPMDC_ENTER_S3          19
 217 #define PPMDC_EXIT_S3           20
 218
 219 /*
 220  * ppm_dc.method field - select union element
 221  */
 222 #define PPMDC_KIO               1       /* simple ioctl with val as arg */
 223 #define PPMDC_CPUSPEEDKIO       2       /* ioctl with speed index arg   */
 224 #define PPMDC_VCORE             3       /* CPU Vcore change operation */
 225 #ifdef sun4u
 226 #define PPMDC_I2CKIO            4       /* ioctl with i2c_gpio_t as arg */
 227 #endif
 228
 229 /*
 230  * devices that are powered by the same source
 231  * are grouped by this struct as a "power domain"
 232  */
 233 struct ppm_domain {
 234         char            *name;          /* domain name */
 235         int             dflags;         /* domain flags */
 236         int             pwr_cnt;        /* number of powered up devices */
 237         ppm_db_t        *conflist;      /* all devices from ppm.conf file */
 238         ppm_dev_t       *devlist;       /* current attached devices */
 239         char            *propname;      /* domain property name */
 240         kmutex_t        lock;           /* domain lock */
 241         int             refcnt;         /* domain lock ref count */
 242         int             model;          /* pm model, CPU, FET or LED    */
 243         int             status;         /* domain specific status */
 244         int             sub_domain;     /* sub-domain */
 245         ppm_dc_t        *dc;            /* domain control method */
 246         ppm_owned_t     *owned;         /* list of ever owned devices */
 247         struct ppm_domain       *next;  /* a linked list */
 248         clock_t         last_off_time;  /* last time domain was off     */
 249
 250 };
 251 typedef struct ppm_domain ppm_domain_t;
 252
 253
 254 /*
 255  * ppm_domain.model field -
 256  */
 257 #define PPMD_CPU                1       /* cpu PM model */
 258 #define PPMD_FET                2       /* power FET pm model */
 259 #define PPMD_LED                3       /* LED pm model */
 260 #define PPMD_PCI                4       /* PCI pm model */
 261 #define PPMD_PCI_PROP           5       /* PCI_PROP pm model */
 262 #define PPMD_PCIE               6       /* PCI Express pm model */
 263 #define PPMD_SX                 7       /* ACPI Sx pm model */
 264
 265 #define PPMD_IS_PCI(model) \
 266         ((model) == PPMD_PCI || (model) == PPMD_PCI_PROP)
 267
 268 /*
 269  * ppm_domain.status field -
 270  */
 271 #define PPMD_OFF                0x0     /* FET/LED/PCI clock: off */
 272 #define PPMD_ON                 0x1     /* FET/LED/PCI clock: on */
 273
 274 /*
 275  * ppm_domain.dflags field -
 276  */
 277 #define PPMD_LOCK_ONE           0x1
 278 #define PPMD_LOCK_ALL           0x4
 279 #define PPMD_PCI33MHZ           0x1000  /* 33mhz PCI slot */
 280 #define PPMD_PCI66MHZ           0x2000  /* 66mhz PCI slot */
 281 #define PPMD_INITCHILD_CLKON    0x4000  /* clk turned on in init_child */
 282 #define PPMD_OFFLINE            0x10000 /* domain is not functional */
 283 #define PPMD_CPU_READY          0x20000 /* CPU domain can process power call */
 284
 285 struct ppm_domit {
 286         char    *name;
 287         int     model;
 288         int     dflags;
 289         int     status;
 290 };
 291 extern struct ppm_domit ppm_domit_data[];
 292
 293 /*
 294  * XXppm driver-specific routines called from common code (s10)
 295  */
 296 struct ppm_funcs {
 297         void    (*dev_init)(ppm_dev_t *);
 298         void    (*dev_fini)(ppm_dev_t *);
 299         void    (*iocset)(uint8_t);
 300         uint8_t (*iocget)(void);
 301 };
 302
 303 extern ppm_domain_t     *ppm_domain_p;
 304 extern void             *ppm_statep;
 305 extern int              ppm_inst;
 306 extern ppm_domain_t *ppm_domains[];     /* (s10) */
 307 extern struct ppm_funcs ppmf;           /* (s10) */
 308
 309 extern void             ppm_dev_init(ppm_dev_t *);
 310 extern void             ppm_dev_fini(ppm_dev_t *);
 311 extern int              ppm_create_db(dev_info_t *);
 312 extern int              ppm_claim_dev(dev_info_t *);
 313 extern void             ppm_rem_dev(dev_info_t *);
 314 extern ppm_dev_t        *ppm_get_dev(dev_info_t *, ppm_domain_t *);
 315 extern void             ppm_init_cb(dev_info_t *);
 316 extern int              ppm_init_lyr(ppm_dc_t *, dev_info_t *);
 317 extern ppm_domain_t     *ppm_lookup_dev(dev_info_t *);
 318 extern ppm_domain_t     *ppm_lookup_domain(char *);
 319 extern ppm_dc_t         *ppm_lookup_dc(ppm_domain_t *, int);
 320 extern ppm_dc_t         *ppm_lookup_hndl(int, ppm_dc_t *);
 321 extern ppm_domain_t     *ppm_get_domain_by_dev(const char *);
 322 extern boolean_t        ppm_none_else_holds_power(ppm_domain_t *);
 323 extern ppm_owned_t      *ppm_add_owned(dev_info_t *, ppm_domain_t *);
 324 extern void             ppm_lock_one(ppm_dev_t *, power_req_t *, int *);
 325 extern void             ppm_lock_all(ppm_domain_t *, power_req_t *, int *);
 326 extern boolean_t        ppm_manage_early_cpus(dev_info_t *, int, int *);
 327 extern int              ppm_change_cpu_power(ppm_dev_t *, int);
 328 extern int              ppm_revert_cpu_power(ppm_dev_t *, int);
 329 extern ppm_dev_t        *ppm_add_dev(dev_info_t *, ppm_domain_t *);
 330
 331 #define PPM_GET_PRIVATE(dip) \
 332     DEVI(dip)->devi_pm_ppm_private
 333 #define PPM_SET_PRIVATE(dip, datap) \
 334     DEVI(dip)->devi_pm_ppm_private = datap
 335
 336 #define PPM_LOCK_DOMAIN(domp) {                 \
 337         if (!MUTEX_HELD(&(domp)->lock))         \
 338                 mutex_enter(&(domp)->lock);     \
 339         (domp)->refcnt++;                       \
 340 }
 341
 342 #define PPM_UNLOCK_DOMAIN(domp) {               \
 343         ASSERT(MUTEX_HELD(&(domp)->lock) &&     \
 344                 (domp)->refcnt > 0);            \
 345         if (--(domp)->refcnt == 0)              \
 346                 mutex_exit(&(domp)->lock);      \
 347 }
 348
 349 /*
 350  * debug support
 351  */
 352 #ifdef DEBUG
 353 #include <sys/promif.h>
 354
 355 extern char     *ppm_get_ctlstr(int, uint_t);
 356 extern void     ppm_print_dc(struct ppm_dc *);
 357
 358 extern uint_t ppm_debug;
 359
 360 #define D_CREATEDB      0x00000001
 361 #define D_CLAIMDEV      0x00000002
 362 #define D_ADDDEV        0x00000004
 363 #define D_REMDEV        0x00000008
 364 #define D_LOWEST        0x00000010
 365 #define D_SETLVL        0x00000020
 366 #define D_GPIO          0x00000040
 367 #define D_CPU           0x00000080
 368 #define D_FET           0x00000100
 369 #define D_PCIUPA        0x00000200
 370 #define D_1394          0x00000400
 371 #define D_CTLOPS1       0x00000800
 372 #define D_CTLOPS2       0x00001000
 373 #define D_SOME          0x00002000
 374 #define D_LOCKS         0x00004000
 375 #define D_IOCTL         0x00008000
 376 #define D_ATTACH        0x00010000
 377 #define D_DETACH        0x00020000
 378 #define D_OPEN          0x00040000
 379 #define D_CLOSE         0x00080000
 380 #define D_INIT          0x00100000
 381 #define D_FINI          0x00200000
 382 #define D_ERROR         0x00400000
 383 #define D_SETPWR        0x00800000
 384 #define D_LED           0x01000000
 385 #define D_PCI           0x02000000
 386 #define D_PPMDC         0x04000000
 387 #define D_CPR           0x08000000
 388
 389 #define PPMD(level, arglist) {                  \
 390         if (ppm_debug & (level)) {              \
 391                 pm_log arglist;                 \
 392         }                                       \
 393 }
 394 /* (s10) */
 395 #define DPRINTF         PPMD
 396
 397 #else   /* DEBUG */
 398 #define PPMD(level, arglist)
 399 #define DPRINTF(flag, args)     /* (s10) */
 400 #endif  /* DEBUG */
 401
 402 #ifdef  __cplusplus
 403 }
 404 #endif
 405
 406 #endif  /* _SYS_PPMVAR_H */