sys/compat/irix/irix_usema.h

   1 /*      $NetBSD: irix_usema.h,v 1.13 2008/04/28 20:23:42 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Emmanuel Dreyfus.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _IRIX_USEMA_H_
  33 #define _IRIX_USEMA_H_
  34
  35 #include <sys/param.h>
  36 #include <sys/device.h>
  37 #include <sys/rwlock.h>
  38 #include <sys/queue.h>
  39 #include <sys/vnode.h>
  40
  41 #include <compat/irix/irix_types.h>
  42 #include <compat/irix/irix_exec.h>
  43
  44 extern struct vfsops irix_usema_dummy_vfsops;
  45 void irix_usema_dummy_vfs_init(void);
  46 extern const struct vnodeopv_desc * const irix_usema_vnodeopv_descs[];
  47 extern const struct vnodeopv_desc irix_usema_opv_desc;
  48 extern int (**irix_usema_vnodeop_p)(void *);
  49 extern const struct vnodeopv_entry_desc irix_usema_vnodeop_entries[];
  50
  51
  52 void    irix_usemaattach(struct device *, struct device *, void *);
  53
  54 int     irix_usema_close(void *);
  55 int     irix_usema_access(void *);
  56 int     irix_usema_getattr(void *);
  57 int     irix_usema_setattr(void *);
  58 int     irix_usema_fcntl(void *);
  59 int     irix_usema_ioctl(void *);
  60 int     irix_usema_poll(void *);
  61 int     irix_usema_inactive(void *);
  62
  63 void    irix_usema_exit_cleanup(struct proc *, struct proc *);
  64 #ifdef DEBUG_IRIX
  65 void    irix_usema_debug(void);
  66 #endif
  67
  68 #define IRIX_USEMADEV_MINOR     1
  69 #define IRIX_USEMACLNDEV_MINOR  0
  70
  71 /* Semaphore internal structure: undocumented in IRIX */
  72 struct irix_semaphore {
  73         int is_val;     /* Sempahore value */
  74         int is_uk1;     /* unknown, usually small integer < 3000  */
  75         int is_uk2;     /* metric, debug or history pointer ? */
  76         int is_uk3;     /* unknown, usually equal to 0 */
  77         int is_uk4;     /* unknown, usually equal to 0 */
  78         int is_shid;    /* unique ID for the shared arena ? */
  79         int is_oid;     /* owner id? usually equal to -1 */
  80         int is_uk7;     /* unknown, usually equal to -1 */
  81         int is_uk8;     /* unknown, usually equal to 0 */
  82         int is_uk9;     /* unknown, usually equal to 0 */
  83         int is_uk10;    /* semaphore page base address ? */
  84         int is_uk12;    /* unknown, usually equal to 0 */
  85         int is_uk13;    /* metric, debug or history pointer ? */
  86         int is_uk14;    /* padding? */
  87 };
  88
  89 struct irix_usema_idaddr {
  90         int iui_uk1;    /* unknown, usually equal to 0 */
  91         int *iui_oidp;  /* pointer to is_oid field in struct irix_semaphore */
  92 };
  93
  94 /* waiting processes list */
  95 struct irix_waiting_proc_rec {
  96         TAILQ_ENTRY(irix_waiting_proc_rec) iwpr_list;
  97         struct proc *iwpr_p;
  98 };
  99
 100 /* semaphore list, their vnode counterparts, and waiting processes lists */
 101 struct irix_usema_rec {
 102         LIST_ENTRY(irix_usema_rec) iur_list;
 103         struct vnode *iur_vn;
 104         struct irix_semaphore *iur_sem;
 105         int iur_shid;
 106         struct proc *iur_p;
 107         struct selinfo iur_si;
 108         int iur_waiting_count;
 109         TAILQ_HEAD(iur_waiting_p, irix_waiting_proc_rec) iur_waiting_p;
 110         TAILQ_HEAD(iur_released_p, irix_waiting_proc_rec) iur_released_p;
 111         krwlock_t iur_lock;             /* lock for both lists */
 112 };
 113
 114 /* From IRIX's <sys/usioctl.h> */
 115 #define IRIX_USEMADEV           "/dev/usema"
 116 #define IRIX_USEMACLNDEV        "/dev/usemaclone"
 117
 118 #define IRIX_UIOC       ('u' << 16 | 's' << 8)
 119 #define IRIX_UIOC_MASK  0x00ffff00
 120
 121 #define IRIX_UIOCATTACHSEMA     (IRIX_UIOC|2)
 122 #define IRIX_UIOCBLOCK          (IRIX_UIOC|3)
 123 #define IRIX_UIOCABLOCK         (IRIX_UIOC|4)
 124 #define IRIX_UIOCNOIBLOCK       (IRIX_UIOC|5)
 125 #define IRIX_UIOCUNBLOCK        (IRIX_UIOC|6)
 126 #define IRIX_UIOCAUNBLOCK       (IRIX_UIOC|7)
 127 #define IRIX_UIOCINIT           (IRIX_UIOC|8)
 128 #define IRIX_UIOCGETSEMASTATE   (IRIX_UIOC|9)
 129 #define IRIX_UIOCABLOCKPID      (IRIX_UIOC|10)
 130 #define IRIX_UIOCADDPID         (IRIX_UIOC|11)
 131 #define IRIX_UIOCABLOCKQ        (IRIX_UIOC|12)
 132 #define IRIX_UIOCAUNBLOCKQ      (IRIX_UIOC|13)
 133 #define IRIX_UIOCIDADDR         (IRIX_UIOC|14)
 134 #define IRIX_UIOCSETSEMASTATE   (IRIX_UIOC|15)
 135 #define IRIX_UIOCGETCOUNT       (IRIX_UIOC|16)
 136
 137 struct irix_usattach_s {
 138         irix_dev_t      us_dev;
 139         void            *us_handle;
 140 };
 141 typedef struct irix_usattach_s irix_usattach_t;
 142
 143 struct irix_irix5_usattach_s {
 144         __uint32_t      us_dev;
 145         __uint32_t      us_handle;
 146 };
 147 typedef struct irix_irix5_usattach_s irix_irix5_usattach_t;
 148
 149 struct irix_ussemastate_s {
 150         int     ntid;
 151         int     nprepost;
 152         int     nfilled;
 153         int     nthread;
 154         struct irix_ussematidstate_s {
 155                 pid_t   pid;
 156                 int     tid;
 157                 int     count;
 158         } *tidinfo;
 159 };
 160 typedef struct irix_ussemastate_s irix_ussemastate_t;
 161 typedef struct irix_ussematidstate_s irix_ussematidstate_t;
 162
 163
 164 /* usync_fcntl() commands, undocumented in IRIX */
 165 #define IRIX_USYNC_BLOCK                1
 166 #define IRIX_USYNC_INTR_BLOCK           2
 167 #define IRIX_USYNC_UNBLOCK_ALL          3
 168 #define IRIX_USYNC_UNBLOCK              4
 169 #define IRIX_USYNC_NOTIFY_REGISTER      5
 170 #define IRIX_USYNC_NOTIFY               6
 171 #define IRIX_USYNC_NOTIFY_DELETE        7
 172 #define IRIX_USYNC_NOTIFY_CLEAR         8
 173 #define IRIX_USYNC_GET_STATE            11
 174
 175 struct irix_usync_arg {
 176         int iua_uk0;    /* unknown, usually small integer around 1000 */
 177         int iua_uk1;    /* unknown, usually pointer to code in libc */
 178         int iua_uk2;    /* unknown, usually null */
 179         struct irix_semaphore *iua_sem; /* semaphore address */
 180 };
 181
 182 #endif /* _IRIX_USEMA_H_ */