NetBSD-5.0.2/sys/compat/irix/irix_usema.h
/* $NetBSD: irix_usema.h,v 1.14 2008/05/10 12:57:18 tnn Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Emmanuel Dreyfus.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _IRIX_USEMA_H_
#define _IRIX_USEMA_H_
#include <sys/param.h>
#include <sys/device.h>
#include <sys/rwlock.h>
#include <sys/queue.h>
#include <sys/vnode.h>
#include <compat/irix/irix_types.h>
#include <compat/irix/irix_exec.h>
extern struct vfsops irix_usema_dummy_vfsops;
void irix_usema_dummy_vfs_init(void);
extern const struct vnodeopv_desc * const irix_usema_vnodeopv_descs[];
extern const struct vnodeopv_desc irix_usema_opv_desc;
extern int (**irix_usema_vnodeop_p)(void *);
extern const struct vnodeopv_entry_desc irix_usema_vnodeop_entries[];
void irix_usemaattach(struct device *, struct device *, void *);
int irix_usema_close(void *);
int irix_usema_access(void *);
int irix_usema_getattr(void *);
int irix_usema_setattr(void *);
int irix_usema_fcntl(void *);
int irix_usema_ioctl(void *);
int irix_usema_poll(void *);
int irix_usema_inactive(void *);
void irix_usema_exit_cleanup(struct proc *, struct proc *);
#ifdef DEBUG_IRIX
void irix_usema_debug(void);
#endif
#define IRIX_USEMADEV_MINOR 1
#define IRIX_USEMACLNDEV_MINOR 0
/* Semaphore internal structure: undocumented in IRIX */
struct irix_semaphore {
int is_val; /* Sempahore value */
int is_uk1; /* unknown, usually small integer < 3000 */
int is_uk2; /* metric, debug or history pointer ? */
int is_uk3; /* unknown, usually equal to 0 */
int is_uk4; /* unknown, usually equal to 0 */
int is_shid; /* unique ID for the shared arena ? */
int is_oid; /* owner id? usually equal to -1 */
int is_uk7; /* unknown, usually equal to -1 */
int is_uk8; /* unknown, usually equal to 0 */
int is_uk9; /* unknown, usually equal to 0 */
int is_uk10; /* semaphore page base address ? */
int is_uk12; /* unknown, usually equal to 0 */
int is_uk13; /* metric, debug or history pointer ? */
int is_uk14; /* padding? */
};
struct irix_usema_idaddr {
int iui_uk1; /* unknown, usually equal to 0 */
int *iui_oidp; /* pointer to is_oid field in struct irix_semaphore */
};
/* waiting processes list */
struct irix_waiting_proc_rec {
TAILQ_ENTRY(irix_waiting_proc_rec) iwpr_list;
struct proc *iwpr_p;
};
/* semaphore list, their vnode counterparts, and waiting processes lists */
struct irix_usema_rec {
LIST_ENTRY(irix_usema_rec) iur_list;
struct vnode *iur_vn;
struct irix_semaphore *iur_sem;
int iur_shid;
struct proc *iur_p;
struct selinfo iur_si;
int iur_waiting_count;
TAILQ_HEAD(iur_waiting_p, irix_waiting_proc_rec) iur_waiting_p;
TAILQ_HEAD(iur_released_p, irix_waiting_proc_rec) iur_released_p;
krwlock_t iur_lock; /* lock for both lists */
};
/* From IRIX's <sys/usioctl.h> */
#define IRIX_USEMADEV "/dev/usema"
#define IRIX_USEMACLNDEV "/dev/usemaclone"
#define IRIX_UIOC ('u' << 16 | 's' << 8)
#define IRIX_UIOC_MASK 0x00ffff00
#define IRIX_UIOCATTACHSEMA (IRIX_UIOC|2)
#define IRIX_UIOCBLOCK (IRIX_UIOC|3)
#define IRIX_UIOCABLOCK (IRIX_UIOC|4)
#define IRIX_UIOCNOIBLOCK (IRIX_UIOC|5)
#define IRIX_UIOCUNBLOCK (IRIX_UIOC|6)
#define IRIX_UIOCAUNBLOCK (IRIX_UIOC|7)
#define IRIX_UIOCINIT (IRIX_UIOC|8)
#define IRIX_UIOCGETSEMASTATE (IRIX_UIOC|9)
#define IRIX_UIOCABLOCKPID (IRIX_UIOC|10)
#define IRIX_UIOCADDPID (IRIX_UIOC|11)
#define IRIX_UIOCABLOCKQ (IRIX_UIOC|12)
#define IRIX_UIOCAUNBLOCKQ (IRIX_UIOC|13)
#define IRIX_UIOCIDADDR (IRIX_UIOC|14)
#define IRIX_UIOCSETSEMASTATE (IRIX_UIOC|15)
#define IRIX_UIOCGETCOUNT (IRIX_UIOC|16)
struct irix_usattach_s {
irix_dev_t us_dev;
void *us_handle;
};
typedef struct irix_usattach_s irix_usattach_t;
struct irix_irix5_usattach_s {
__uint32_t us_dev;
__uint32_t us_handle;
};
typedef struct irix_irix5_usattach_s irix_irix5_usattach_t;
struct irix_ussemastate_s {
int ntid;
int nprepost;
int nfilled;
int nthread;
struct irix_ussematidstate_s {
pid_t pid;
int tid;
int count;
} *tidinfo;
};
typedef struct irix_ussemastate_s irix_ussemastate_t;
typedef struct irix_ussematidstate_s irix_ussematidstate_t;
/* usync_fcntl() commands, undocumented in IRIX */
#define IRIX_USYNC_BLOCK 1
#define IRIX_USYNC_INTR_BLOCK 2
#define IRIX_USYNC_UNBLOCK_ALL 3
#define IRIX_USYNC_UNBLOCK 4
#define IRIX_USYNC_NOTIFY_REGISTER 5
#define IRIX_USYNC_NOTIFY 6
#define IRIX_USYNC_NOTIFY_DELETE 7
#define IRIX_USYNC_NOTIFY_CLEAR 8
#define IRIX_USYNC_GET_STATE 11
struct irix_usync_arg {
int iua_uk0; /* unknown, usually small integer around 1000 */
int iua_uk1; /* unknown, usually pointer to code in libc */
int iua_uk2; /* unknown, usually null */
struct irix_semaphore *iua_sem; /* semaphore address */
};
#endif /* _IRIX_USEMA_H_ */