| hrtimer.c (c9f289701540baeef9ac7c9977d67a7259f404db) | hrtimer.c (73d20564e0dcae003e0d79977f044d5e57496304) |
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| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright(C) 2005-2006, Thomas Gleixner <tglx@linutronix.de> 4 * Copyright(C) 2005-2007, Red Hat, Inc., Ingo Molnar 5 * Copyright(C) 2006-2007 Timesys Corp., Thomas Gleixner 6 * 7 * High-resolution kernel timers 8 * --- 297 unchanged lines hidden (view full) --- 306 tmp = dclc < 0 ? -dclc : dclc; 307 308 /* Make sure the divisor is less than 2^32: */ 309 while (div >> 32) { 310 sft++; 311 div >>= 1; 312 } 313 tmp >>= sft; | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright(C) 2005-2006, Thomas Gleixner <tglx@linutronix.de> 4 * Copyright(C) 2005-2007, Red Hat, Inc., Ingo Molnar 5 * Copyright(C) 2006-2007 Timesys Corp., Thomas Gleixner 6 * 7 * High-resolution kernel timers 8 * --- 297 unchanged lines hidden (view full) --- 306 tmp = dclc < 0 ? -dclc : dclc; 307 308 /* Make sure the divisor is less than 2^32: */ 309 while (div >> 32) { 310 sft++; 311 div >>= 1; 312 } 313 tmp >>= sft; |
| 314 do_div(tmp, (unsigned long) div); | 314 do_div(tmp, (u32) div); |
| 315 return dclc < 0 ? -tmp : tmp; 316} 317EXPORT_SYMBOL_GPL(__ktime_divns); 318#endif /* BITS_PER_LONG >= 64 */ 319 320/* 321 * Add two ktime values and do a safety check for overflow: 322 */ --- 1076 unchanged lines hidden (view full) --- 1399 * ensure POSIX compliance. 1400 */ 1401 if (clock_id == CLOCK_REALTIME && mode & HRTIMER_MODE_REL) 1402 clock_id = CLOCK_MONOTONIC; 1403 1404 base = softtimer ? HRTIMER_MAX_CLOCK_BASES / 2 : 0; 1405 base += hrtimer_clockid_to_base(clock_id); 1406 timer->is_soft = softtimer; | 315 return dclc < 0 ? -tmp : tmp; 316} 317EXPORT_SYMBOL_GPL(__ktime_divns); 318#endif /* BITS_PER_LONG >= 64 */ 319 320/* 321 * Add two ktime values and do a safety check for overflow: 322 */ --- 1076 unchanged lines hidden (view full) --- 1399 * ensure POSIX compliance. 1400 */ 1401 if (clock_id == CLOCK_REALTIME && mode & HRTIMER_MODE_REL) 1402 clock_id = CLOCK_MONOTONIC; 1403 1404 base = softtimer ? HRTIMER_MAX_CLOCK_BASES / 2 : 0; 1405 base += hrtimer_clockid_to_base(clock_id); 1406 timer->is_soft = softtimer; |
| 1407 timer->is_hard = !softtimer; | 1407 timer->is_hard = !!(mode & HRTIMER_MODE_HARD); |
| 1408 timer->base = &cpu_base->clock_base[base]; 1409 timerqueue_init(&timer->node); 1410} 1411 1412/** 1413 * hrtimer_init - initialize a timer to the given clock 1414 * @timer: the timer to be initialized 1415 * @clock_id: the clock to be used --- 59 unchanged lines hidden (view full) --- 1475 */ 1476 1477static void __run_hrtimer(struct hrtimer_cpu_base *cpu_base, 1478 struct hrtimer_clock_base *base, 1479 struct hrtimer *timer, ktime_t *now, 1480 unsigned long flags) __must_hold(&cpu_base->lock) 1481{ 1482 enum hrtimer_restart (*fn)(struct hrtimer *); | 1408 timer->base = &cpu_base->clock_base[base]; 1409 timerqueue_init(&timer->node); 1410} 1411 1412/** 1413 * hrtimer_init - initialize a timer to the given clock 1414 * @timer: the timer to be initialized 1415 * @clock_id: the clock to be used --- 59 unchanged lines hidden (view full) --- 1475 */ 1476 1477static void __run_hrtimer(struct hrtimer_cpu_base *cpu_base, 1478 struct hrtimer_clock_base *base, 1479 struct hrtimer *timer, ktime_t *now, 1480 unsigned long flags) __must_hold(&cpu_base->lock) 1481{ 1482 enum hrtimer_restart (*fn)(struct hrtimer *); |
| 1483 bool expires_in_hardirq; |
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| 1483 int restart; 1484 1485 lockdep_assert_held(&cpu_base->lock); 1486 1487 debug_deactivate(timer); 1488 base->running = timer; 1489 1490 /* --- 18 unchanged lines hidden (view full) --- 1509 1510 /* 1511 * The timer is marked as running in the CPU base, so it is 1512 * protected against migration to a different CPU even if the lock 1513 * is dropped. 1514 */ 1515 raw_spin_unlock_irqrestore(&cpu_base->lock, flags); 1516 trace_hrtimer_expire_entry(timer, now); | 1484 int restart; 1485 1486 lockdep_assert_held(&cpu_base->lock); 1487 1488 debug_deactivate(timer); 1489 base->running = timer; 1490 1491 /* --- 18 unchanged lines hidden (view full) --- 1510 1511 /* 1512 * The timer is marked as running in the CPU base, so it is 1513 * protected against migration to a different CPU even if the lock 1514 * is dropped. 1515 */ 1516 raw_spin_unlock_irqrestore(&cpu_base->lock, flags); 1517 trace_hrtimer_expire_entry(timer, now); |
| 1518 expires_in_hardirq = lockdep_hrtimer_enter(timer); 1519 |
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| 1517 restart = fn(timer); | 1520 restart = fn(timer); |
| 1521 1522 lockdep_hrtimer_exit(expires_in_hardirq); |
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| 1518 trace_hrtimer_expire_exit(timer); 1519 raw_spin_lock_irq(&cpu_base->lock); 1520 1521 /* 1522 * Note: We clear the running state after enqueue_hrtimer and 1523 * we do not reprogram the event hardware. Happens either in 1524 * hrtimer_start_range_ns() or in hrtimer_interrupt() 1525 * --- 688 unchanged lines hidden --- | 1523 trace_hrtimer_expire_exit(timer); 1524 raw_spin_lock_irq(&cpu_base->lock); 1525 1526 /* 1527 * Note: We clear the running state after enqueue_hrtimer and 1528 * we do not reprogram the event hardware. Happens either in 1529 * hrtimer_start_range_ns() or in hrtimer_interrupt() 1530 * --- 688 unchanged lines hidden --- |