| kern_pmc.c (145339) | kern_pmc.c (146799) |
|---|---|
| 1/*- | 1/*- |
| 2 * Copyright (c) 2003 Joseph Koshy | 2 * Copyright (c) 2003-2005, Joseph Koshy |
| 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the --- 8 unchanged lines hidden (view full) --- 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> | 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the --- 8 unchanged lines hidden (view full) --- 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> |
| 27__FBSDID("$FreeBSD: head/sys/kern/kern_pmc.c 145339 2005-04-20 20:30:59Z marcel $"); | 27__FBSDID("$FreeBSD: head/sys/kern/kern_pmc.c 146799 2005-05-30 06:29:29Z jkoshy $"); |
| 28 29#include <sys/pmckern.h> 30#include <sys/smp.h> 31 32struct sx pmc_sx; 33 34/* Hook variable. */ 35int (*pmc_hook)(struct thread *td, int function, void *arg) = NULL; 36 37/* Interrupt handler */ | 28 29#include <sys/pmckern.h> 30#include <sys/smp.h> 31 32struct sx pmc_sx; 33 34/* Hook variable. */ 35int (*pmc_hook)(struct thread *td, int function, void *arg) = NULL; 36 37/* Interrupt handler */ |
| 38int (*pmc_intr)(int cpu, uintptr_t pc) = NULL; | 38int (*pmc_intr)(int cpu, uintptr_t pc, int usermode) = NULL; |
| 39 | 39 |
| 40cpumask_t pmc_cpumask; 41 |
|
| 40/* 41 * Since PMC(4) may not be loaded in the current kernel, the 42 * convention followed is that a non-NULL value of 'pmc_hook' implies 43 * the presence of this kernel module. 44 * 45 * This requires us to protect 'pmc_hook' with a 46 * shared (sx) lock -- thus making the process of calling into PMC(4) 47 * somewhat more expensive than a simple 'if' check and indirect call. --- 30 unchanged lines hidden --- | 42/* 43 * Since PMC(4) may not be loaded in the current kernel, the 44 * convention followed is that a non-NULL value of 'pmc_hook' implies 45 * the presence of this kernel module. 46 * 47 * This requires us to protect 'pmc_hook' with a 48 * shared (sx) lock -- thus making the process of calling into PMC(4) 49 * somewhat more expensive than a simple 'if' check and indirect call. --- 30 unchanged lines hidden --- |