osfmk/ppc/locks.h

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _PPC_LOCKS_H_
  30 #define _PPC_LOCKS_H_
  31
  32 #include <kern/kern_types.h>
  33 #ifdef  MACH_KERNEL_PRIVATE
  34 #include <ppc/hw_lock_types.h>
  35 #endif
  36
  37
  38 #ifdef  MACH_KERNEL_PRIVATE
  39
  40 extern  unsigned int    LcksOpts;
  41
  42 #define enaLkDeb                0x00000001      /* Request debug in default attribute */
  43 #define enaLkStat               0x00000002      /* Request statistic in default attribute */
  44
  45 #define disLkType               0x80000000      /* Disable type checking */
  46 #define disLktypeb              0
  47 #define disLkThread             0x40000000      /* Disable ownership checking */
  48 #define disLkThreadb    1
  49 #define enaLkExtStck    0x20000000      /* Enable extended backtrace */
  50 #define enaLkExtStckb   2
  51 #define disLkMyLck              0x10000000      /* Disable recursive lock dectection */
  52 #define disLkMyLckb             3
  53
  54 #endif
  55
  56 #ifdef  MACH_KERNEL_PRIVATE
  57 typedef struct {
  58         unsigned int            interlock;
  59         unsigned int            lck_spin_pad4[2];
  60 } lck_spin_t;
  61
  62 #define LCK_SPIN_TAG_DESTROYED          0x00002007      /* lock marked as Destroyed */
  63
  64 #else
  65 #ifdef  KERNEL_PRIVATE
  66 typedef struct {
  67         unsigned int             opaque[3];
  68 } lck_spin_t;
  69 #else
  70 typedef struct __lck_spin_t__   lck_spin_t;
  71 #endif
  72 #endif
  73
  74 #ifdef  MACH_KERNEL_PRIVATE
  75 typedef struct _lck_mtx_ {
  76         union {
  77                 struct {
  78                         unsigned int                    lck_mtxd_data;
  79                         unsigned short                  lck_mtxd_waiters;
  80                         unsigned short                  lck_mtxd_pri;
  81                         unsigned int                    lck_mtxd_pad8;
  82                 } lck_mtxd;
  83                 struct {
  84                         unsigned int                    lck_mtxi_tag;
  85                         struct _lck_mtx_ext_    *lck_mtxi_ptr;
  86                         unsigned int                    lck_mtxi_pad8;
  87                 } lck_mtxi;
  88         } lck_mtx_sw;
  89 } lck_mtx_t;
  90
  91 #define lck_mtx_data    lck_mtx_sw.lck_mtxd.lck_mtxd_data
  92 #define lck_mtx_waiters lck_mtx_sw.lck_mtxd.lck_mtxd_waiters
  93 #define lck_mtx_pri             lck_mtx_sw.lck_mtxd.lck_mtxd_pri
  94
  95 #define lck_mtx_tag     lck_mtx_sw.lck_mtxi.lck_mtxi_tag
  96 #define lck_mtx_ptr             lck_mtx_sw.lck_mtxi.lck_mtxi_ptr
  97
  98 #define LCK_MTX_TAG_INDIRECT                    0x00001007      /* lock marked as Indirect  */
  99 #define LCK_MTX_TAG_DESTROYED                   0x00002007      /* lock marked as Destroyed */
 100
 101 #define LCK_FRAMES_MAX  8
 102
 103 typedef struct {
 104         unsigned int            type;
 105         vm_offset_t                     stack[LCK_FRAMES_MAX];
 106         vm_offset_t                     thread;
 107 } lck_mtx_deb_t;
 108
 109 #define MUTEX_TAG       0x4d4d
 110
 111 typedef struct {
 112         unsigned int            lck_mtx_stat_data;
 113 } lck_mtx_stat_t;
 114
 115 typedef struct _lck_mtx_ext_ {
 116         lck_mtx_t                       lck_mtx;
 117         struct _lck_grp_        *lck_mtx_grp;
 118         unsigned int            lck_mtx_attr;
 119         lck_mtx_deb_t           lck_mtx_deb;
 120         lck_mtx_stat_t          lck_mtx_stat;
 121 } lck_mtx_ext_t;
 122
 123 #define LCK_MTX_ATTR_DEBUG      0x1
 124 #define LCK_MTX_ATTR_DEBUGb     31
 125 #define LCK_MTX_ATTR_STAT       0x2
 126 #define LCK_MTX_ATTR_STATb      30
 127
 128 #else
 129 #ifdef  KERNEL_PRIVATE
 130 typedef struct {
 131     unsigned int                 opaque[3];
 132 } lck_mtx_t;
 133 #else
 134 typedef struct __lck_mtx_t__    lck_mtx_t;
 135 #endif
 136 #endif
 137
 138 #ifdef  MACH_KERNEL_PRIVATE
 139 typedef struct {
 140         union {
 141                 struct {
 142                         unsigned int                    lck_rwd_shared_cnt:16,  /* No. of shared granted request */
 143                                                                         lck_rwd_pad16:12,               /* padding */
 144                                                                         lck_rwd_want_excl:1,    /* Writer is waiting, or locked for write */
 145                                                                         lck_rwd_want_upgrade:1, /* Read-to-write upgrade waiting */
 146                                                                         lck_rwd_waiting:1,              /* Someone is sleeping on lock */
 147                                                                         lck_rwd_interlock:1;    /* Read-to-write upgrade waiting */
 148                         unsigned int                    lck_rwd_pad4;
 149                         unsigned int                    lck_rwd_pad8;
 150                 } lck_rwd;
 151                 struct {
 152                         unsigned int                    lck_rwi_tag;
 153                         struct _lck_rw_ext_     *lck_rwi_ptr;
 154                         unsigned int                    lck_rwi_pad8;
 155                 } lck_rwi;
 156         } lck_rw_sw;
 157 } lck_rw_t;
 158
 159 #define lck_rw_interlock                lck_rw_sw.lck_rwd.lck_rwd_interlock
 160 #define lck_rw_want_upgrade             lck_rw_sw.lck_rwd.lck_rwd_want_upgrade
 161 #define lck_rw_want_excl                lck_rw_sw.lck_rwd.lck_rwd_want_excl
 162 #define lck_rw_waiting                  lck_rw_sw.lck_rwd.lck_rwd_waiting
 163 #define lck_rw_shared_cnt               lck_rw_sw.lck_rwd.lck_rwd_shared_cnt
 164
 165 #define lck_rw_tag                              lck_rw_sw.lck_rwi.lck_rwi_tag
 166 #define lck_rw_ptr                              lck_rw_sw.lck_rwi.lck_rwi_ptr
 167
 168 typedef struct {
 169         unsigned int            type;
 170         vm_offset_t                     stack[LCK_FRAMES_MAX];
 171         thread_t                        thread;
 172         void                            (*pc_excl)(void);
 173         void                            (*pc_done)(void);
 174 } lck_rw_deb_t;
 175
 176 #define RW_TAG       0x5d5d
 177
 178 typedef struct {
 179         unsigned int            lck_rw_stat_data;
 180 } lck_rw_stat_t;
 181
 182 typedef struct _lck_rw_ext_ {
 183         lck_rw_t                        lck_rw;
 184         struct _lck_grp_        *lck_rw_grp;
 185         unsigned int            lck_rw_attr;
 186         lck_rw_deb_t            lck_rw_deb;
 187         lck_rw_stat_t           lck_rw_stat;
 188 } lck_rw_ext_t;
 189
 190 #define LCK_RW_ATTR_DEBUG       0x1
 191 #define LCK_RW_ATTR_DEBUGb      31
 192 #define LCK_RW_ATTR_STAT        0x2
 193 #define LCK_RW_ATTR_STATb       30
 194 #define LCK_RW_ATTR_DIS_THREAD  0x40000000
 195 #define LCK_RW_ATTR_DIS_THREADb 1
 196 #define LCK_RW_ATTR_DIS_MYLOCK  0x10000000
 197 #define LCK_RW_ATTR_DIS_MYLOCKb 3
 198
 199 #define LCK_RW_TAG_INDIRECT                     0x00001107      /* lock marked as Indirect  */
 200 #define LCK_RW_TAG_DESTROYED            0x00002107      /* lock marked as Destroyed */
 201
 202 #else
 203 #ifdef  KERNEL_PRIVATE
 204 typedef struct {
 205     unsigned int                 opaque[3];
 206 } lck_rw_t;
 207 #else
 208 typedef struct __lck_rw_t__     lck_rw_t;
 209 #endif
 210 #endif
 211
 212 #endif  /* _PPC_LOCKS_H_ */