| hwpmc_mod.c (168856) | hwpmc_mod.c (170307) |
|---|---|
| 1/*- 2 * Copyright (c) 2003-2006 Joseph Koshy 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 --- 12 unchanged lines hidden (view full) --- 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2003-2006 Joseph Koshy 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 --- 12 unchanged lines hidden (view full) --- 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28#include <sys/cdefs.h> |
| 29__FBSDID("$FreeBSD: head/sys/dev/hwpmc/hwpmc_mod.c 168856 2007-04-19 08:02:51Z jkoshy $"); | 29__FBSDID("$FreeBSD: head/sys/dev/hwpmc/hwpmc_mod.c 170307 2007-06-05 00:00:57Z jeff $"); |
| 30 31#include <sys/param.h> 32#include <sys/eventhandler.h> 33#include <sys/jail.h> 34#include <sys/kernel.h> 35#include <sys/kthread.h> 36#include <sys/limits.h> 37#include <sys/lock.h> --- 548 unchanged lines hidden (view full) --- 586/* 587 * save the cpu binding of the current kthread 588 */ 589 590static void 591pmc_save_cpu_binding(struct pmc_binding *pb) 592{ 593 PMCDBG(CPU,BND,2, "%s", "save-cpu"); | 30 31#include <sys/param.h> 32#include <sys/eventhandler.h> 33#include <sys/jail.h> 34#include <sys/kernel.h> 35#include <sys/kthread.h> 36#include <sys/limits.h> 37#include <sys/lock.h> --- 548 unchanged lines hidden (view full) --- 586/* 587 * save the cpu binding of the current kthread 588 */ 589 590static void 591pmc_save_cpu_binding(struct pmc_binding *pb) 592{ 593 PMCDBG(CPU,BND,2, "%s", "save-cpu"); |
| 594 mtx_lock_spin(&sched_lock); | 594 thread_lock(curthread); |
| 595 pb->pb_bound = sched_is_bound(curthread); 596 pb->pb_cpu = curthread->td_oncpu; | 595 pb->pb_bound = sched_is_bound(curthread); 596 pb->pb_cpu = curthread->td_oncpu; |
| 597 mtx_unlock_spin(&sched_lock); | 597 thread_unlock(curthread); |
| 598 PMCDBG(CPU,BND,2, "save-cpu cpu=%d", pb->pb_cpu); 599} 600 601/* 602 * restore the cpu binding of the current thread 603 */ 604 605static void 606pmc_restore_cpu_binding(struct pmc_binding *pb) 607{ 608 PMCDBG(CPU,BND,2, "restore-cpu curcpu=%d restore=%d", 609 curthread->td_oncpu, pb->pb_cpu); | 598 PMCDBG(CPU,BND,2, "save-cpu cpu=%d", pb->pb_cpu); 599} 600 601/* 602 * restore the cpu binding of the current thread 603 */ 604 605static void 606pmc_restore_cpu_binding(struct pmc_binding *pb) 607{ 608 PMCDBG(CPU,BND,2, "restore-cpu curcpu=%d restore=%d", 609 curthread->td_oncpu, pb->pb_cpu); |
| 610 mtx_lock_spin(&sched_lock); | 610 thread_lock(curthread); |
| 611 if (pb->pb_bound) 612 sched_bind(curthread, pb->pb_cpu); 613 else 614 sched_unbind(curthread); | 611 if (pb->pb_bound) 612 sched_bind(curthread, pb->pb_cpu); 613 else 614 sched_unbind(curthread); |
| 615 mtx_unlock_spin(&sched_lock); | 615 thread_unlock(curthread); |
| 616 PMCDBG(CPU,BND,2, "%s", "restore-cpu done"); 617} 618 619/* 620 * move execution over the specified cpu and bind it there. 621 */ 622 623static void 624pmc_select_cpu(int cpu) 625{ 626 KASSERT(cpu >= 0 && cpu < mp_ncpus, 627 ("[pmc,%d] bad cpu number %d", __LINE__, cpu)); 628 629 /* never move to a disabled CPU */ 630 KASSERT(pmc_cpu_is_disabled(cpu) == 0, ("[pmc,%d] selecting " 631 "disabled CPU %d", __LINE__, cpu)); 632 633 PMCDBG(CPU,SEL,2, "select-cpu cpu=%d", cpu); | 616 PMCDBG(CPU,BND,2, "%s", "restore-cpu done"); 617} 618 619/* 620 * move execution over the specified cpu and bind it there. 621 */ 622 623static void 624pmc_select_cpu(int cpu) 625{ 626 KASSERT(cpu >= 0 && cpu < mp_ncpus, 627 ("[pmc,%d] bad cpu number %d", __LINE__, cpu)); 628 629 /* never move to a disabled CPU */ 630 KASSERT(pmc_cpu_is_disabled(cpu) == 0, ("[pmc,%d] selecting " 631 "disabled CPU %d", __LINE__, cpu)); 632 633 PMCDBG(CPU,SEL,2, "select-cpu cpu=%d", cpu); |
| 634 mtx_lock_spin(&sched_lock); | 634 thread_lock(curthread); |
| 635 sched_bind(curthread, cpu); | 635 sched_bind(curthread, cpu); |
| 636 mtx_unlock_spin(&sched_lock); | 636 thread_unlock(curthread); |
| 637 638 KASSERT(curthread->td_oncpu == cpu, 639 ("[pmc,%d] CPU not bound [cpu=%d, curr=%d]", __LINE__, 640 cpu, curthread->td_oncpu)); 641 642 PMCDBG(CPU,SEL,2, "select-cpu cpu=%d ok", cpu); 643} 644 --- 3762 unchanged lines hidden --- | 637 638 KASSERT(curthread->td_oncpu == cpu, 639 ("[pmc,%d] CPU not bound [cpu=%d, curr=%d]", __LINE__, 640 cpu, curthread->td_oncpu)); 641 642 PMCDBG(CPU,SEL,2, "select-cpu cpu=%d ok", cpu); 643} 644 --- 3762 unchanged lines hidden --- |