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)
39 #define osi_vnhold(avc, r) do { VN_HOLD(AFSTOV(avc)); } while(0)
41 #undef afs_osi_Alloc_NoSleep
42 extern void *afs_osi_Alloc_NoSleep(size_t size);
46 #include <sys/flock.h>
47 extern flid_t osi_flid;
48 #define v_op v_bh.bh_first->bd_ops
49 #define v_data v_bh.bh_first->bd_pdata
50 #define vfs_data vfs_bh.bh_first->bd_pdata
51 #endif /* AFS_SGI64_ENV */
54 * Global lock, semaphore, mutex and state vector support.
56 #define SV_INIT(cv, nm, t, c) cv_init(cv, nm, t, c)
59 #define SV_SIGNAL(cv) sv_signal(cv)
60 #define SPINLOCK_INIT(l, nm) spinlock_init((l),(nm))
61 #define SPLOCK(l) mp_mutex_spinlock(&(l))
62 #define SPUNLOCK(l,s) mp_mutex_spinunlock(&(l),s)
63 #define SP_WAIT(l, s, cv, p) mp_sv_wait_sig(cv, p, (void*)(&(l)), s)
66 /* Add PLTWAIT for afsd's to wait so we don't rack up the load average. */
67 #define AFSD_PRI() ((kt_basepri(curthreadp) == PTIME_SHARE) ? PZERO : (PZERO|PLTWAIT))
68 #undef AFS_MUTEX_ENTER
69 #define AFS_MUTEX_ENTER(mp) \
71 struct kthread *_kthreadP; \
72 while(mutex_tryenter(mp) == 0) { \
73 _kthreadP = (struct kthread*)mutex_owner(mp); \
74 if (_kthreadP != NULL && _kthreadP->k_sonproc == CPU_NONE) { \
75 mutex_lock(mp, AFSD_PRI()); \
81 #else /* AFS_SGI65_ENV */
82 /* Add PLTWAIT for afsd's to wait so we don't rack up the load average. */
83 #define AFSD_PRI() ((curprocp && curprocp->p_rss==0) ? (PZERO|PLTWAIT) : PZERO)
85 #define AFS_MUTEX_ENTER(mp) \
88 while(mutex_tryenter(mp) == 0) { \
89 kt = mutex_owner(mp); \
90 if (kt != NULL && kt->k_sonproc == CPU_NONE) { \
91 mutex_lock(mp, AFSD_PRI()); \
96 #endif /* AFS_SGI65_ENV */
98 #define cv_timedwait(cv, l, t) { \
99 sv_timedwait(cv, AFSD_PRI(), l, 0, 0, &(t), \
100 (struct timespec*)0); \
101 AFS_MUTEX_ENTER(l); \
106 #define cv_wait(cv, l) { \
107 sv_wait(cv, AFSD_PRI(), l, 0); \
108 AFS_MUTEX_ENTER(l); \
110 #else /* AFS_SGI64_ENV */
113 #define AFS_MUTEX_ENTER(mp) \
115 struct proc *_procP; \
116 while(mutex_tryenter(mp) == 0) { \
117 _procP = mutex_owner(mp); \
118 if (_procP != NULL && _procP->p_sonproc == CPU_NONE) { \
125 #else /* AFS_SGI62_ENV */
127 #define AFS_MUTEX_ENTER(mp) mutex_enter(mp)
129 #endif /* AFS_SGI62_ENV */
131 #define cv_timedwait(cv, l, t) { \
132 sv_timedwait(cv, l, t); \
135 #endif /* AFS_SGI64_ENV */
139 #define _MP_NETLOCKS /* to get sblock to work right */
141 /* On SGI mutex_owned doesn't work, so simulate this by remembering the owning
142 * thread explicitly. This is only used for debugging so could be disabled for
145 * CAUTION -- The ISAFS_(RX)?GLOCK macros are not safe to use when the lock is
146 * not held if the test may be made at interrupt level as the code may
147 * appear to be running as the process that is (or last was) running at
148 * non-interrupt level. Worse yet, the interrupt may occur just as the
149 * process is exiting, in which case, the pid may change from the start
150 * of the interrupt to the end, since the u area has been changed. So,
151 * at interrupt level, I'm using the base of the current interrupt stack.
152 * Note that afs_osinet.c also modifies afs_global_owner for osi_Sleep and
153 * afs_osi_Wakeup. Changes made here should be reflected there as well.
154 * NOTE - As of 6.2, we can no longer use mutexes in interrupts, so the above
155 * concern no longer exists.
160 /* Irix does not check for deadlocks unless it's a debug kernel. */
161 #define AFS_ASSERT_GNOTME() \
162 (!ISAFS_GLOCK() || (panic("afs global lock held be me"), 0))
163 #define AFS_GLOCK() \
164 { AFS_ASSERT_GNOTME(); AFS_MUTEX_ENTER(&afs_global_lock); }
166 #define AFS_GLOCK() AFS_MUTEX_ENTER(&afs_global_lock)
168 #define AFS_GUNLOCK() { AFS_ASSERT_GLOCK(); mutex_exit(&afs_global_lock); }
169 #define ISAFS_GLOCK() mutex_mine(&afs_global_lock)
171 extern long afs_global_owner;
172 #define AFS_GLOCK() \
174 AFS_MUTEX_ENTER(&afs_global_lock) ; \
175 afs_global_owner = osi_ThreadUnique(); \
177 #define AFS_GUNLOCK() \
178 { AFS_ASSERT_GLOCK(); afs_global_owner = 0; mutex_exit(&afs_global_lock); }
179 #define ISAFS_GLOCK() (osi_ThreadUnique() == afs_global_owner)
180 #endif /* AFS_SGI64_ENV */
183 #define AFS_GUNLOCK()
184 #define ISAFS_GLOCK() 1
186 #define SPLVAR int splvar
187 #define NETPRI splvar=splnet()
188 #define USERPRI splx(splvar)
195 #if defined(AFS_SGI62_ENV)
196 # define osi_InitGlock() \
197 mutex_init(&afs_global_lock, MUTEX_DEFAULT, "afs_global_lock");
199 # define osi_InitGlock() \
200 mutex_init(&afs_global_lock, "afs_global_lock", MUTEX_DEFAULT, NULL);
204 #define gop_rdwr(rw,gp,base,len,offset,segflg,ioflag,ulimit,cr,aresid) \
205 vn_rdwr((rw),(gp),(base),(len),(offset),(segflg),(ioflag),(ulimit),(cr),\
206 (int *)(aresid), &osi_flid)
208 #define gop_rdwr(rw,gp,base,len,offset,segflg,ioflag,ulimit,cr,aresid) \
209 vn_rdwr((rw),(gp),(base),(len),(offset),(segflg),(ioflag),(ulimit),(cr), \
215 #define suser() cap_able(CAP_DEVICE_MGT)
217 #define afs_suser(x) suser()
227 /* OS independent user structure stuff */
229 * OSI_GET_CURRENT_PID
231 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
232 #define OSI_GET_CURRENT_PID() (u.u_procp->p_pid)
233 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
235 #if defined(AFS_SGI64_ENV) && !defined(AFS_SGI65_ENV)
236 #define OSI_GET_CURRENT_PID() current_pid()
237 #endif /* AFS_SGI64_ENV */
239 #if defined(AFS_SGI65_ENV)
240 #define OSI_GET_CURRENT_PID() proc_pid(curproc())
243 #define getpid() OSI_GET_CURRENT_PID()
246 * OSI_GET_CURRENT_PROCP
248 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
249 #define OSI_GET_CURRENT_PROCP() (u.u_procp)
250 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
252 #if defined(AFS_SGI64_ENV) && !defined(AFS_SGI65_ENV)
253 #define OSI_GET_CURRENT_PROCP() curprocp
254 #endif /* AFS_SGI64_ENV */
256 #if defined(AFS_SGI65_ENV)
257 #define OSI_GET_CURRENT_PROCP() UT_TO_PROC(curuthread)
264 * Prior to IRIX 6.4, pid sufficed, now we need kthread.
266 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
267 #define OSI_GET_LOCKID() (u.u_procp->p_pid)
268 #define OSI_NO_LOCKID (-1)
269 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
271 #if defined(AFS_SGI64_ENV)
272 /* IRIX returns k_id, but this way, we've got the thread address for debugging. */
273 #define OSI_GET_LOCKID() \
274 (private.p_curkthread ? (uint64_t)private.p_curkthread : (uint64_t)0)
275 #define OSI_NO_LOCKID ((uint64_t)-1)
276 #endif /* AFS_SGI64_ENV */
279 * OSI_GET_CURRENT_CRED
281 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
282 #define OSI_GET_CURRENT_CRED() (u.u_cred)
283 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
285 #if defined(AFS_SGI64_ENV)
286 #define OSI_GET_CURRENT_CRED() get_current_cred()
287 #endif /* AFS_SGI64_ENV */
289 #define osi_curcred() OSI_GET_CURRENT_CRED()
292 * OSI_SET_CURRENT_CRED
294 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
295 #define OSI_SET_CURRENT_CRED(x) u.u_cred=x
296 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
298 #if defined(AFS_SGI64_ENV)
299 #define OSI_SET_CURRENT_CRED(C) set_current_cred((C))
300 #endif /* AFS_SGI64_ENV */
303 * OSI_GET_CURRENT_ABI
305 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
306 #define OSI_GET_CURRENT_ABI() (u.u_procp->p_abi)
307 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
309 #if defined(AFS_SGI64_ENV)
310 #define OSI_GET_CURRENT_ABI() get_current_abi()
311 #endif /* AFS_SGI64_ENV */
314 * OSI_GET_CURRENT_SYSID
316 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
317 #define OSI_GET_CURRENT_SYSID() (u.u_procp->p_sysid)
318 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
320 #if defined(AFS_SGI64_ENV)
321 #define OSI_GET_CURRENT_SYSID() (curprocp->p_flid.fl_sysid)
322 #endif /* AFS_SGI64_ENV */
325 * OSI_GET_CURRENT_COMM
327 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
328 #define OSI_GET_CURRENT_COMM() (u.u_comm)
329 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
331 #if defined(AFS_SGI64_ENV)
332 #define OSI_GET_CURRENT_COMM() (curprocp->p_comm)
333 #endif /* AFS_SGI64_ENV */
336 * OSI_GET_CURRENT_CDIR
338 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
339 #define OSI_GET_CURRENT_CDIR() (u.u_cdir)
340 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
342 #if defined(AFS_SGI64_ENV) && !defined(AFS_SGI65_ENV)
343 #define OSI_GET_CURRENT_CDIR() (curprocp->p_cdir)
344 #endif /* AFS_SGI64_ENV */
346 #if defined(AFS_SGI65_ENV)
347 #define OSI_GET_CURRENT_CDIR() (curuthread->ut_cdir)
348 #endif /* AFS_SGI65_ENV */
352 * OSI_GET_CURRENT_RDIR
354 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
355 #define OSI_GET_CURRENT_RDIR() (u.u_rdir)
356 #endif /* AFS_SGI_ENV but not AFS_SGI64_ENV */
358 #if defined(AFS_SGI64_ENV) && !defined(AFS_SGI65_ENV)
359 #define OSI_GET_CURRENT_RDIR() (curprocp->p_rdir)
360 #endif /* AFS_SGI64_ENV */
362 #if defined(AFS_SGI65_ENV)
363 #define OSI_GET_CURRENT_RDIR() (curuthread->ut_rdir)
364 #endif /* AFS_SGI65_ENV */
368 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
370 * Note that the _CONVERT routines get the ";" here so that argument lists
371 * can have arguments after the OSI_x_CONVERT macro is called.
375 #define OSI_VN_ARG(V) bhv_##V
377 #define OSI_VN_DECL(V) bhv_desc_t *bhv_##V
378 #undef OSI_VN_CONVERT
379 #define OSI_VN_CONVERT(V) struct vnode * V = (struct vnode*)BHV_TO_VNODE(bhv_##V)
381 #define OSI_VC_ARG(V) bhv_##V
383 #define OSI_VC_DECL(V) bhv_desc_t *bhv_##V
384 #undef OSI_VC_CONVERT
385 #define OSI_VC_CONVERT(V) struct vcache * V = VTOAFS(BHV_TO_VNODE(bhv_##V))
387 #define OSI_VFS_ARG(V) bhv_##V
389 #define OSI_VFS_DECL(V) bhv_desc_t *bhv_##V
390 #undef OSI_VFS_CONVERT
391 #define OSI_VFS_CONVERT(V) struct vfs * V = (struct vfs*)bhvtovfs(bhv_##V)
392 #endif /* AFS_SGI64_ENV */
394 #define osi_procname(procname, size) strncpy(procname, proc_name(curproc()), size)
397 #endif /* _OSI_MACHDEP_H_ */