2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * IRIX OSI header file. Extends afs_osi.h.
13 * afs_osi.h includes this file, which is the only way this file should
14 * be included in a source file. This file can redefine macros declared in
17 #ifndef _OSI_MACHDEP_H_
18 #define _OSI_MACHDEP_H_
22 extern kmutex_t afs_global_lock;
27 #define osi_Time() (time)
29 /* This gets redefined from ucred to cred in osi_vfs.h, just do it right */
30 typedef struct cred afs_ucred_t;
31 typedef struct proc afs_proc_t;
34 #define gop_lookupname(fnamep,segflg,followlink,compvpp) lookupname((fnamep),(segflg),(followlink),NULL,(compvpp), NULL)
36 #undef gop_lookupname_user
37 #define gop_lookupname_user(fnamep,segflg,followlink,compvpp) lookupname((fnamep),(segflg),(followlink),NULL,(compvpp), NULL)
40 #include <sys/flock.h>
41 extern flid_t osi_flid;
42 #define v_op v_bh.bh_first->bd_ops
43 #define v_data v_bh.bh_first->bd_pdata
44 #define vfs_data vfs_bh.bh_first->bd_pdata
45 #endif /* AFS_SGI64_ENV */
48 * Global lock, semaphore, mutex and state vector support.
50 #define SV_INIT(cv, nm, t, c) cv_init(cv, nm, t, c)
53 #define SV_SIGNAL(cv) sv_signal(cv)
54 #define SPINLOCK_INIT(l, nm) spinlock_init((l),(nm))
55 #define SPLOCK(l) mp_mutex_spinlock(&(l))
56 #define SPUNLOCK(l,s) mp_mutex_spinunlock(&(l),s)
57 #define SP_WAIT(l, s, cv, p) mp_sv_wait_sig(cv, p, (void*)(&(l)), s)
60 /* Add PLTWAIT for afsd's to wait so we don't rack up the load average. */
61 #define AFSD_PRI() ((kt_basepri(curthreadp) == PTIME_SHARE) ? PZERO : (PZERO|PLTWAIT))
62 #undef AFS_MUTEX_ENTER
63 #define AFS_MUTEX_ENTER(mp) \
65 struct kthread *_kthreadP; \
66 while(mutex_tryenter(mp) == 0) { \
67 _kthreadP = (struct kthread*)mutex_owner(mp); \
68 if (_kthreadP != NULL && _kthreadP->k_sonproc == CPU_NONE) { \
69 mutex_lock(mp, AFSD_PRI()); \
75 #else /* AFS_SGI65_ENV */
76 /* Add PLTWAIT for afsd's to wait so we don't rack up the load average. */
77 #define AFSD_PRI() ((curprocp && curprocp->p_rss==0) ? (PZERO|PLTWAIT) : PZERO)
79 #define AFS_MUTEX_ENTER(mp) \
82 while(mutex_tryenter(mp) == 0) { \
83 kt = mutex_owner(mp); \
84 if (kt != NULL && kt->k_sonproc == CPU_NONE) { \
85 mutex_lock(mp, AFSD_PRI()); \
90 #endif /* AFS_SGI65_ENV */
92 #define cv_timedwait(cv, l, t) { \
93 sv_timedwait(cv, AFSD_PRI(), l, 0, 0, &(t), \
94 (struct timespec*)0); \
100 #define cv_wait(cv, l) { \
101 sv_wait(cv, AFSD_PRI(), l, 0); \
102 AFS_MUTEX_ENTER(l); \
104 #else /* AFS_SGI64_ENV */
107 #define AFS_MUTEX_ENTER(mp) \
109 struct proc *_procP; \
110 while(mutex_tryenter(mp) == 0) { \
111 _procP = mutex_owner(mp); \
112 if (_procP != NULL && _procP->p_sonproc == CPU_NONE) { \
119 #else /* AFS_SGI62_ENV */
121 #define AFS_MUTEX_ENTER(mp) mutex_enter(mp)
123 #endif /* AFS_SGI62_ENV */
125 #define cv_timedwait(cv, l, t) { \
126 sv_timedwait(cv, l, t); \
129 #endif /* AFS_SGI64_ENV */
133 #define _MP_NETLOCKS /* to get sblock to work right */
135 /* On SGI mutex_owned doesn't work, so simulate this by remembering the owning
136 * thread explicitly. This is only used for debugging so could be disabled for
139 * CAUTION -- The ISAFS_(RX)?GLOCK macros are not safe to use when the lock is
140 * not held if the test may be made at interrupt level as the code may
141 * appear to be running as the process that is (or last was) running at
142 * non-interrupt level. Worse yet, the interrupt may occur just as the
143 * process is exiting, in which case, the pid may change from the start
144 * of the interrupt to the end, since the u area has been changed. So,
145 * at interrupt level, I'm using the base of the current interrupt stack.
146 * Note that afs_osinet.c also modifies afs_global_owner for osi_Sleep and
147 * afs_osi_Wakeup. Changes made here should be reflected there as well.
148 * NOTE - As of 6.2, we can no longer use mutexes in interrupts, so the above
149 * concern no longer exists.
154 /* Irix does not check for deadlocks unless it's a debug kernel. */
155 #define AFS_ASSERT_GNOTME() \
156 (!ISAFS_GLOCK() || (panic("afs global lock held be me"), 0))
157 #define AFS_GLOCK() \
158 { AFS_ASSERT_GNOTME(); AFS_MUTEX_ENTER(&afs_global_lock); }
160 #define AFS_GLOCK() AFS_MUTEX_ENTER(&afs_global_lock)
162 #define AFS_GUNLOCK() { AFS_ASSERT_GLOCK(); mutex_exit(&afs_global_lock); }
163 #define ISAFS_GLOCK() mutex_mine(&afs_global_lock)
165 extern long afs_global_owner;
166 #define AFS_GLOCK() \
168 AFS_MUTEX_ENTER(&afs_global_lock) ; \
169 afs_global_owner = osi_ThreadUnique(); \
171 #define AFS_GUNLOCK() \
172 { AFS_ASSERT_GLOCK(); afs_global_owner = 0; mutex_exit(&afs_global_lock); }
173 #define ISAFS_GLOCK() (osi_ThreadUnique() == afs_global_owner)
174 #endif /* AFS_SGI64_ENV */
177 #define AFS_GUNLOCK()
178 #define ISAFS_GLOCK() 1
180 #define SPLVAR int splvar
181 #define NETPRI splvar=splnet()
182 #define USERPRI splx(splvar)
189 #if defined(AFS_SGI62_ENV)
190 # define osi_InitGlock() \
191 mutex_init(&afs_global_lock, MUTEX_DEFAULT, "afs_global_lock");
193 # define osi_InitGlock() \
194 mutex_init(&afs_global_lock, "afs_global_lock", MUTEX_DEFAULT, NULL);
198 #define gop_rdwr(rw,gp,base,len,offset,segflg,ioflag,ulimit,cr,aresid) \
199 vn_rdwr((rw),(gp),(base),(len),(offset),(segflg),(ioflag),(ulimit),(cr),\
200 (int *)(aresid), &osi_flid)
202 #define gop_rdwr(rw,gp,base,len,offset,segflg,ioflag,ulimit,cr,aresid) \
203 vn_rdwr((rw),(gp),(base),(len),(offset),(segflg),(ioflag),(ulimit),(cr), \
209 #define suser() cap_able(CAP_DEVICE_MGT)
211 #define afs_suser(x) suser()
221 /* OS independent user structure stuff */
223 * OSI_GET_CURRENT_PID
225 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
226 #define OSI_GET_CURRENT_PID() (u.u_procp->p_pid)
227 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
229 #if defined(AFS_SGI64_ENV) && !defined(AFS_SGI65_ENV)
230 #define OSI_GET_CURRENT_PID() current_pid()
231 #endif /* AFS_SGI64_ENV */
233 #if defined(AFS_SGI65_ENV)
234 #define OSI_GET_CURRENT_PID() proc_pid(curproc())
237 #define getpid() OSI_GET_CURRENT_PID()
240 * OSI_GET_CURRENT_PROCP
242 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
243 #define OSI_GET_CURRENT_PROCP() (u.u_procp)
244 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
246 #if defined(AFS_SGI64_ENV) && !defined(AFS_SGI65_ENV)
247 #define OSI_GET_CURRENT_PROCP() curprocp
248 #endif /* AFS_SGI64_ENV */
250 #if defined(AFS_SGI65_ENV)
251 #define OSI_GET_CURRENT_PROCP() UT_TO_PROC(curuthread)
258 * Prior to IRIX 6.4, pid sufficed, now we need kthread.
260 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
261 #define OSI_GET_LOCKID() (u.u_procp->p_pid)
262 #define OSI_NO_LOCKID (-1)
263 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
265 #if defined(AFS_SGI64_ENV)
266 /* IRIX returns k_id, but this way, we've got the thread address for debugging. */
267 #define OSI_GET_LOCKID() \
268 (private.p_curkthread ? (uint64_t)private.p_curkthread : (uint64_t)0)
269 #define OSI_NO_LOCKID ((uint64_t)-1)
270 #endif /* AFS_SGI64_ENV */
273 * OSI_GET_CURRENT_CRED
275 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
276 #define OSI_GET_CURRENT_CRED() (u.u_cred)
277 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
279 #if defined(AFS_SGI64_ENV)
280 #define OSI_GET_CURRENT_CRED() get_current_cred()
281 #endif /* AFS_SGI64_ENV */
283 #define osi_curcred() OSI_GET_CURRENT_CRED()
286 * OSI_SET_CURRENT_CRED
288 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
289 #define OSI_SET_CURRENT_CRED(x) u.u_cred=x
290 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
292 #if defined(AFS_SGI64_ENV)
293 #define OSI_SET_CURRENT_CRED(C) set_current_cred((C))
294 #endif /* AFS_SGI64_ENV */
297 * OSI_GET_CURRENT_ABI
299 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
300 #define OSI_GET_CURRENT_ABI() (u.u_procp->p_abi)
301 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
303 #if defined(AFS_SGI64_ENV)
304 #define OSI_GET_CURRENT_ABI() get_current_abi()
305 #endif /* AFS_SGI64_ENV */
308 * OSI_GET_CURRENT_SYSID
310 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
311 #define OSI_GET_CURRENT_SYSID() (u.u_procp->p_sysid)
312 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
314 #if defined(AFS_SGI64_ENV)
315 #define OSI_GET_CURRENT_SYSID() (curprocp->p_flid.fl_sysid)
316 #endif /* AFS_SGI64_ENV */
319 * OSI_GET_CURRENT_COMM
321 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
322 #define OSI_GET_CURRENT_COMM() (u.u_comm)
323 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
325 #if defined(AFS_SGI64_ENV)
326 #define OSI_GET_CURRENT_COMM() (curprocp->p_comm)
327 #endif /* AFS_SGI64_ENV */
330 * OSI_GET_CURRENT_CDIR
332 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
333 #define OSI_GET_CURRENT_CDIR() (u.u_cdir)
334 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
336 #if defined(AFS_SGI64_ENV) && !defined(AFS_SGI65_ENV)
337 #define OSI_GET_CURRENT_CDIR() (curprocp->p_cdir)
338 #endif /* AFS_SGI64_ENV */
340 #if defined(AFS_SGI65_ENV)
341 #define OSI_GET_CURRENT_CDIR() (curuthread->ut_cdir)
342 #endif /* AFS_SGI65_ENV */
346 * OSI_GET_CURRENT_RDIR
348 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
349 #define OSI_GET_CURRENT_RDIR() (u.u_rdir)
350 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
352 #if defined(AFS_SGI64_ENV) && !defined(AFS_SGI65_ENV)
353 #define OSI_GET_CURRENT_RDIR() (curprocp->p_rdir)
354 #endif /* AFS_SGI64_ENV */
356 #if defined(AFS_SGI65_ENV)
357 #define OSI_GET_CURRENT_RDIR() (curuthread->ut_rdir)
358 #endif /* AFS_SGI65_ENV */
362 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
364 * Note that the _CONVERT routines get the ";" here so that argument lists
365 * can have arguments after the OSI_x_CONVERT macro is called.
369 #define OSI_VN_ARG(V) bhv_##V
371 #define OSI_VN_DECL(V) bhv_desc_t *bhv_##V
372 #undef OSI_VN_CONVERT
373 #define OSI_VN_CONVERT(V) struct vnode * V = (struct vnode*)BHV_TO_VNODE(bhv_##V)
375 #define OSI_VC_ARG(V) bhv_##V
377 #define OSI_VC_DECL(V) bhv_desc_t *bhv_##V
378 #undef OSI_VC_CONVERT
379 #define OSI_VC_CONVERT(V) struct vcache * V = VTOAFS(BHV_TO_VNODE(bhv_##V))
381 #define OSI_VFS_ARG(V) bhv_##V
383 #define OSI_VFS_DECL(V) bhv_desc_t *bhv_##V
384 #undef OSI_VFS_CONVERT
385 #define OSI_VFS_CONVERT(V) struct vfs * V = (struct vfs*)bhvtovfs(bhv_##V)
386 #endif /* AFS_SGI64_ENV */
388 #define osi_procname(procname, size) strncpy(procname, proc_name(curproc()), size)
391 #endif /* _OSI_MACHDEP_H_ */