| kern_clock.c (209059) | kern_clock.c (209371) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 21 unchanged lines hidden (view full) --- 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)kern_clock.c 8.5 (Berkeley) 1/21/94 35 */ 36 37#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1982, 1986, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 21 unchanged lines hidden (view full) --- 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)kern_clock.c 8.5 (Berkeley) 1/21/94 35 */ 36 37#include <sys/cdefs.h> |
| 38__FBSDID("$FreeBSD: head/sys/kern/kern_clock.c 209059 2010-06-11 18:46:34Z jhb $"); | 38__FBSDID("$FreeBSD: head/sys/kern/kern_clock.c 209371 2010-06-20 21:33:29Z mav $"); |
| 39 40#include "opt_kdb.h" 41#include "opt_device_polling.h" 42#include "opt_hwpmc_hooks.h" 43#include "opt_ntp.h" 44#include "opt_watchdog.h" 45 46#include <sys/param.h> --- 340 unchanged lines hidden (view full) --- 387 void *dummy; 388{ 389 register int i; 390 391 /* 392 * Set divisors to 1 (normal case) and let the machine-specific 393 * code do its bit. 394 */ | 39 40#include "opt_kdb.h" 41#include "opt_device_polling.h" 42#include "opt_hwpmc_hooks.h" 43#include "opt_ntp.h" 44#include "opt_watchdog.h" 45 46#include <sys/param.h> --- 340 unchanged lines hidden (view full) --- 387 void *dummy; 388{ 389 register int i; 390 391 /* 392 * Set divisors to 1 (normal case) and let the machine-specific 393 * code do its bit. 394 */ |
| 395 mtx_init(&time_lock, "time lock", NULL, MTX_SPIN); | 395 mtx_init(&time_lock, "time lock", NULL, MTX_DEF); |
| 396 cpu_initclocks(); 397 398 /* 399 * Compute profhz/stathz, and fix profhz if needed. 400 */ 401 i = stathz ? stathz : hz; 402 if (profhz == 0) 403 profhz = i; --- 40 unchanged lines hidden (view full) --- 444 if (profprocs == 0) 445 return; 446 cnt = DPCPU_PTR(prof_cnt); 447 *cnt += profhz; 448 if (*cnt >= t2hz) { 449 *cnt -= t2hz; 450 if (*cnt >= t2hz) 451 *cnt = 0; | 396 cpu_initclocks(); 397 398 /* 399 * Compute profhz/stathz, and fix profhz if needed. 400 */ 401 i = stathz ? stathz : hz; 402 if (profhz == 0) 403 profhz = i; --- 40 unchanged lines hidden (view full) --- 444 if (profprocs == 0) 445 return; 446 cnt = DPCPU_PTR(prof_cnt); 447 *cnt += profhz; 448 if (*cnt >= t2hz) { 449 *cnt -= t2hz; 450 if (*cnt >= t2hz) 451 *cnt = 0; |
| 452 profclock(usermode, pc); | 452 profclock(usermode, pc); |
| 453 } 454} 455 456/* 457 * Each time the real-time timer fires, this function is called on all CPUs. 458 * Note that hardclock() calls hardclock_cpu() for the boot CPU, so only 459 * the other CPUs in the system need to call this function. 460 */ --- 133 unchanged lines hidden (view full) --- 594 register struct proc *p; 595{ 596 597 PROC_LOCK_ASSERT(p, MA_OWNED); 598 if (p->p_flag & P_STOPPROF) 599 return; 600 if ((p->p_flag & P_PROFIL) == 0) { 601 p->p_flag |= P_PROFIL; | 453 } 454} 455 456/* 457 * Each time the real-time timer fires, this function is called on all CPUs. 458 * Note that hardclock() calls hardclock_cpu() for the boot CPU, so only 459 * the other CPUs in the system need to call this function. 460 */ --- 133 unchanged lines hidden (view full) --- 594 register struct proc *p; 595{ 596 597 PROC_LOCK_ASSERT(p, MA_OWNED); 598 if (p->p_flag & P_STOPPROF) 599 return; 600 if ((p->p_flag & P_PROFIL) == 0) { 601 p->p_flag |= P_PROFIL; |
| 602 mtx_lock_spin(&time_lock); | 602 mtx_lock(&time_lock); |
| 603 if (++profprocs == 1) 604 cpu_startprofclock(); | 603 if (++profprocs == 1) 604 cpu_startprofclock(); |
| 605 mtx_unlock_spin(&time_lock); | 605 mtx_unlock(&time_lock); |
| 606 } 607} 608 609/* 610 * Stop profiling on a process. 611 */ 612void 613stopprofclock(p) --- 7 unchanged lines hidden (view full) --- 621 while (p->p_profthreads != 0) 622 msleep(&p->p_profthreads, &p->p_mtx, PPAUSE, 623 "stopprof", 0); 624 p->p_flag &= ~P_STOPPROF; 625 } 626 if ((p->p_flag & P_PROFIL) == 0) 627 return; 628 p->p_flag &= ~P_PROFIL; | 606 } 607} 608 609/* 610 * Stop profiling on a process. 611 */ 612void 613stopprofclock(p) --- 7 unchanged lines hidden (view full) --- 621 while (p->p_profthreads != 0) 622 msleep(&p->p_profthreads, &p->p_mtx, PPAUSE, 623 "stopprof", 0); 624 p->p_flag &= ~P_STOPPROF; 625 } 626 if ((p->p_flag & P_PROFIL) == 0) 627 return; 628 p->p_flag &= ~P_PROFIL; |
| 629 mtx_lock_spin(&time_lock); | 629 mtx_lock(&time_lock); |
| 630 if (--profprocs == 0) 631 cpu_stopprofclock(); | 630 if (--profprocs == 0) 631 cpu_stopprofclock(); |
| 632 mtx_unlock_spin(&time_lock); | 632 mtx_unlock(&time_lock); |
| 633 } 634} 635 636/* 637 * Statistics clock. Updates rusage information and calls the scheduler 638 * to adjust priorities of the active thread. 639 * 640 * This should be called by all active processors. --- 179 unchanged lines hidden --- | 633 } 634} 635 636/* 637 * Statistics clock. Updates rusage information and calls the scheduler 638 * to adjust priorities of the active thread. 639 * 640 * This should be called by all active processors. --- 179 unchanged lines hidden --- |