Lines Matching full:timer
3 * Virtual cpu timer based timer functions.
38 u64 timer; in get_vtimer() local
40 asm volatile("stpt %0" : "=Q" (timer)); in get_vtimer()
41 return timer; in get_vtimer()
46 u64 timer; in set_vtimer() local
49 " stpt %0\n" /* Store current cpu timer value */ in set_vtimer()
51 : "=Q" (timer) : "Q" (expires)); in set_vtimer()
52 S390_lowcore.system_timer += S390_lowcore.last_update_timer - timer; in set_vtimer()
127 u64 timer, clock, user, guest, system, hardirq, softirq; in do_account_vtime() local
129 timer = S390_lowcore.last_update_timer; in do_account_vtime()
132 " stpt %0\n" /* Store current cpu timer value */ in do_account_vtime()
141 timer -= S390_lowcore.last_update_timer; in do_account_vtime()
144 S390_lowcore.hardirq_timer += timer; in do_account_vtime()
146 S390_lowcore.system_timer += timer; in do_account_vtime()
231 u64 timer; in vtime_account_irq_enter() local
233 timer = S390_lowcore.last_update_timer; in vtime_account_irq_enter()
235 timer -= S390_lowcore.last_update_timer; in vtime_account_irq_enter()
238 S390_lowcore.guest_timer += timer; in vtime_account_irq_enter()
240 S390_lowcore.hardirq_timer += timer; in vtime_account_irq_enter()
242 S390_lowcore.softirq_timer += timer; in vtime_account_irq_enter()
244 S390_lowcore.system_timer += timer; in vtime_account_irq_enter()
246 virt_timer_forward(timer); in vtime_account_irq_enter()
258 static void list_add_sorted(struct vtimer_list *timer, struct list_head *head) in list_add_sorted() argument
263 if (tmp->expires > timer->expires) { in list_add_sorted()
264 list_add_tail(&timer->entry, &tmp->entry); in list_add_sorted()
268 list_add_tail(&timer->entry, head); in list_add_sorted()
272 * Handler for expired virtual CPU timer.
276 struct vtimer_list *timer, *tmp; in virt_timer_expire() local
280 /* walk timer list, fire all expired timers */ in virt_timer_expire()
283 list_for_each_entry_safe(timer, tmp, &virt_timer_list, entry) { in virt_timer_expire()
284 if (timer->expires < elapsed) in virt_timer_expire()
285 /* move expired timer to the callback queue */ in virt_timer_expire()
286 list_move_tail(&timer->entry, &cb_list); in virt_timer_expire()
288 timer->expires -= elapsed; in virt_timer_expire()
291 timer = list_first_entry(&virt_timer_list, in virt_timer_expire()
293 atomic64_set(&virt_timer_current, timer->expires); in virt_timer_expire()
299 list_for_each_entry_safe(timer, tmp, &cb_list, entry) { in virt_timer_expire()
300 list_del_init(&timer->entry); in virt_timer_expire()
301 timer->function(timer->data); in virt_timer_expire()
302 if (timer->interval) { in virt_timer_expire()
303 /* Recharge interval timer */ in virt_timer_expire()
304 timer->expires = timer->interval + in virt_timer_expire()
307 list_add_sorted(timer, &virt_timer_list); in virt_timer_expire()
313 void init_virt_timer(struct vtimer_list *timer) in init_virt_timer() argument
315 timer->function = NULL; in init_virt_timer()
316 INIT_LIST_HEAD(&timer->entry); in init_virt_timer()
320 static inline int vtimer_pending(struct vtimer_list *timer) in vtimer_pending() argument
322 return !list_empty(&timer->entry); in vtimer_pending()
325 static void internal_add_vtimer(struct vtimer_list *timer) in internal_add_vtimer() argument
328 /* First timer, just program it. */ in internal_add_vtimer()
329 atomic64_set(&virt_timer_current, timer->expires); in internal_add_vtimer()
331 list_add(&timer->entry, &virt_timer_list); in internal_add_vtimer()
333 /* Update timer against current base. */ in internal_add_vtimer()
334 timer->expires += atomic64_read(&virt_timer_elapsed); in internal_add_vtimer()
335 if (likely((s64) timer->expires < in internal_add_vtimer()
337 /* The new timer expires before the current timer. */ in internal_add_vtimer()
338 atomic64_set(&virt_timer_current, timer->expires); in internal_add_vtimer()
339 /* Insert new timer into the list. */ in internal_add_vtimer()
340 list_add_sorted(timer, &virt_timer_list); in internal_add_vtimer()
344 static void __add_vtimer(struct vtimer_list *timer, int periodic) in __add_vtimer() argument
348 timer->interval = periodic ? timer->expires : 0; in __add_vtimer()
350 internal_add_vtimer(timer); in __add_vtimer()
355 * add_virt_timer - add a oneshot virtual CPU timer
357 void add_virt_timer(struct vtimer_list *timer) in add_virt_timer() argument
359 __add_vtimer(timer, 0); in add_virt_timer()
364 * add_virt_timer_int - add an interval virtual CPU timer
366 void add_virt_timer_periodic(struct vtimer_list *timer) in add_virt_timer_periodic() argument
368 __add_vtimer(timer, 1); in add_virt_timer_periodic()
372 static int __mod_vtimer(struct vtimer_list *timer, u64 expires, int periodic) in __mod_vtimer() argument
377 BUG_ON(!timer->function); in __mod_vtimer()
379 if (timer->expires == expires && vtimer_pending(timer)) in __mod_vtimer()
382 rc = vtimer_pending(timer); in __mod_vtimer()
384 list_del_init(&timer->entry); in __mod_vtimer()
385 timer->interval = periodic ? expires : 0; in __mod_vtimer()
386 timer->expires = expires; in __mod_vtimer()
387 internal_add_vtimer(timer); in __mod_vtimer()
393 * returns whether it has modified a pending timer (1) or not (0)
395 int mod_virt_timer(struct vtimer_list *timer, u64 expires) in mod_virt_timer() argument
397 return __mod_vtimer(timer, expires, 0); in mod_virt_timer()
402 * returns whether it has modified a pending timer (1) or not (0)
404 int mod_virt_timer_periodic(struct vtimer_list *timer, u64 expires) in mod_virt_timer_periodic() argument
406 return __mod_vtimer(timer, expires, 1); in mod_virt_timer_periodic()
411 * Delete a virtual timer.
413 * returns whether the deleted timer was pending (1) or not (0)
415 int del_virt_timer(struct vtimer_list *timer) in del_virt_timer() argument
419 if (!vtimer_pending(timer)) in del_virt_timer()
422 list_del_init(&timer->entry); in del_virt_timer()
429 * Start the virtual CPU timer on the current CPU.
433 /* set initial cpu timer */ in vtime_init()