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()
142 timer -= S390_lowcore.last_update_timer; in do_account_vtime()
145 S390_lowcore.hardirq_timer += timer; in do_account_vtime()
147 S390_lowcore.system_timer += timer; in do_account_vtime()
232 u64 timer; in vtime_account_irq_enter() local
234 timer = S390_lowcore.last_update_timer; in vtime_account_irq_enter()
236 timer -= S390_lowcore.last_update_timer; in vtime_account_irq_enter()
239 S390_lowcore.guest_timer += timer; in vtime_account_irq_enter()
241 S390_lowcore.hardirq_timer += timer; in vtime_account_irq_enter()
243 S390_lowcore.softirq_timer += timer; in vtime_account_irq_enter()
245 S390_lowcore.system_timer += timer; in vtime_account_irq_enter()
247 virt_timer_forward(timer); in vtime_account_irq_enter()
259 static void list_add_sorted(struct vtimer_list *timer, struct list_head *head) in list_add_sorted() argument
264 if (tmp->expires > timer->expires) { in list_add_sorted()
265 list_add_tail(&timer->entry, &tmp->entry); in list_add_sorted()
269 list_add_tail(&timer->entry, head); in list_add_sorted()
273 * Handler for expired virtual CPU timer.
277 struct vtimer_list *timer, *tmp; in virt_timer_expire() local
281 /* walk timer list, fire all expired timers */ in virt_timer_expire()
284 list_for_each_entry_safe(timer, tmp, &virt_timer_list, entry) { in virt_timer_expire()
285 if (timer->expires < elapsed) in virt_timer_expire()
286 /* move expired timer to the callback queue */ in virt_timer_expire()
287 list_move_tail(&timer->entry, &cb_list); in virt_timer_expire()
289 timer->expires -= elapsed; in virt_timer_expire()
292 timer = list_first_entry(&virt_timer_list, in virt_timer_expire()
294 atomic64_set(&virt_timer_current, timer->expires); in virt_timer_expire()
300 list_for_each_entry_safe(timer, tmp, &cb_list, entry) { in virt_timer_expire()
301 list_del_init(&timer->entry); in virt_timer_expire()
302 timer->function(timer->data); in virt_timer_expire()
303 if (timer->interval) { in virt_timer_expire()
304 /* Recharge interval timer */ in virt_timer_expire()
305 timer->expires = timer->interval + in virt_timer_expire()
308 list_add_sorted(timer, &virt_timer_list); in virt_timer_expire()
314 void init_virt_timer(struct vtimer_list *timer) in init_virt_timer() argument
316 timer->function = NULL; in init_virt_timer()
317 INIT_LIST_HEAD(&timer->entry); in init_virt_timer()
321 static inline int vtimer_pending(struct vtimer_list *timer) in vtimer_pending() argument
323 return !list_empty(&timer->entry); in vtimer_pending()
326 static void internal_add_vtimer(struct vtimer_list *timer) in internal_add_vtimer() argument
329 /* First timer, just program it. */ in internal_add_vtimer()
330 atomic64_set(&virt_timer_current, timer->expires); in internal_add_vtimer()
332 list_add(&timer->entry, &virt_timer_list); in internal_add_vtimer()
334 /* Update timer against current base. */ in internal_add_vtimer()
335 timer->expires += atomic64_read(&virt_timer_elapsed); in internal_add_vtimer()
336 if (likely((s64) timer->expires < in internal_add_vtimer()
338 /* The new timer expires before the current timer. */ in internal_add_vtimer()
339 atomic64_set(&virt_timer_current, timer->expires); in internal_add_vtimer()
340 /* Insert new timer into the list. */ in internal_add_vtimer()
341 list_add_sorted(timer, &virt_timer_list); in internal_add_vtimer()
345 static void __add_vtimer(struct vtimer_list *timer, int periodic) in __add_vtimer() argument
349 timer->interval = periodic ? timer->expires : 0; in __add_vtimer()
351 internal_add_vtimer(timer); in __add_vtimer()
356 * add_virt_timer - add a oneshot virtual CPU timer
358 void add_virt_timer(struct vtimer_list *timer) in add_virt_timer() argument
360 __add_vtimer(timer, 0); in add_virt_timer()
365 * add_virt_timer_int - add an interval virtual CPU timer
367 void add_virt_timer_periodic(struct vtimer_list *timer) in add_virt_timer_periodic() argument
369 __add_vtimer(timer, 1); in add_virt_timer_periodic()
373 static int __mod_vtimer(struct vtimer_list *timer, u64 expires, int periodic) in __mod_vtimer() argument
378 BUG_ON(!timer->function); in __mod_vtimer()
380 if (timer->expires == expires && vtimer_pending(timer)) in __mod_vtimer()
383 rc = vtimer_pending(timer); in __mod_vtimer()
385 list_del_init(&timer->entry); in __mod_vtimer()
386 timer->interval = periodic ? expires : 0; in __mod_vtimer()
387 timer->expires = expires; in __mod_vtimer()
388 internal_add_vtimer(timer); in __mod_vtimer()
394 * returns whether it has modified a pending timer (1) or not (0)
396 int mod_virt_timer(struct vtimer_list *timer, u64 expires) in mod_virt_timer() argument
398 return __mod_vtimer(timer, expires, 0); in mod_virt_timer()
403 * returns whether it has modified a pending timer (1) or not (0)
405 int mod_virt_timer_periodic(struct vtimer_list *timer, u64 expires) in mod_virt_timer_periodic() argument
407 return __mod_vtimer(timer, expires, 1); in mod_virt_timer_periodic()
412 * Delete a virtual timer.
414 * returns whether the deleted timer was pending (1) or not (0)
416 int del_virt_timer(struct vtimer_list *timer) in del_virt_timer() argument
420 if (!vtimer_pending(timer)) in del_virt_timer()
423 list_del_init(&timer->entry); in del_virt_timer()
430 * Start the virtual CPU timer on the current CPU.
434 /* set initial cpu timer */ in vtime_init()