| kern_clocksource.c (247329) | kern_clocksource.c (247454) |
|---|---|
| 1/*- 2 * Copyright (c) 2010-2012 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2010-2012 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/sys/kern/kern_clocksource.c 247329 2013-02-26 18:13:42Z mav $"); | 28__FBSDID("$FreeBSD: head/sys/kern/kern_clocksource.c 247454 2013-02-28 10:46:54Z davide $"); |
| 29 30/* 31 * Common routines to manage event timers hardware. 32 */ 33 34#include "opt_device_polling.h" 35#include "opt_kdtrace.h" 36 --- 725 unchanged lines hidden (view full) --- 762 } else 763 profiling--; 764 ET_UNLOCK(); 765} 766 767/* 768 * Switch to idle mode (all ticks handled). 769 */ | 29 30/* 31 * Common routines to manage event timers hardware. 32 */ 33 34#include "opt_device_polling.h" 35#include "opt_kdtrace.h" 36 --- 725 unchanged lines hidden (view full) --- 762 } else 763 profiling--; 764 ET_UNLOCK(); 765} 766 767/* 768 * Switch to idle mode (all ticks handled). 769 */ |
| 770void | 770sbintime_t |
| 771cpu_idleclock(void) 772{ 773 struct bintime now, t; 774 struct pcpu_state *state; 775 776 if (idletick || busy || 777 (periodic && (timer->et_flags & ET_FLAGS_PERCPU)) 778#ifdef DEVICE_POLLING 779 || curcpu == CPU_FIRST() 780#endif 781 ) | 771cpu_idleclock(void) 772{ 773 struct bintime now, t; 774 struct pcpu_state *state; 775 776 if (idletick || busy || 777 (periodic && (timer->et_flags & ET_FLAGS_PERCPU)) 778#ifdef DEVICE_POLLING 779 || curcpu == CPU_FIRST() 780#endif 781 ) |
| 782 return; | 782 return (-1); |
| 783 state = DPCPU_PTR(timerstate); 784 if (periodic) 785 now = state->now; 786 else 787 binuptime(&now); 788 CTR4(KTR_SPARE2, "idle at %d: now %d.%08x%08x", 789 curcpu, now.sec, (u_int)(now.frac >> 32), 790 (u_int)(now.frac & 0xffffffff)); 791 getnextcpuevent(&t, 1); 792 ET_HW_LOCK(state); 793 state->idle = 1; 794 state->nextevent = t; 795 if (!periodic) 796 loadtimer(&now, 0); 797 ET_HW_UNLOCK(state); | 783 state = DPCPU_PTR(timerstate); 784 if (periodic) 785 now = state->now; 786 else 787 binuptime(&now); 788 CTR4(KTR_SPARE2, "idle at %d: now %d.%08x%08x", 789 curcpu, now.sec, (u_int)(now.frac >> 32), 790 (u_int)(now.frac & 0xffffffff)); 791 getnextcpuevent(&t, 1); 792 ET_HW_LOCK(state); 793 state->idle = 1; 794 state->nextevent = t; 795 if (!periodic) 796 loadtimer(&now, 0); 797 ET_HW_UNLOCK(state); |
| 798 bintime_sub(&t, &now); 799 return (MAX(bttosbt(t), 0)); |
|
| 798} 799 800/* 801 * Switch to active mode (skip empty ticks). 802 */ 803void 804cpu_activeclock(void) 805{ --- 172 unchanged lines hidden --- | 800} 801 802/* 803 * Switch to active mode (skip empty ticks). 804 */ 805void 806cpu_activeclock(void) 807{ --- 172 unchanged lines hidden --- |