diff options
Diffstat (limited to 'sys/kern/kern_pmc.c')
| -rw-r--r-- | sys/kern/kern_pmc.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/sys/kern/kern_pmc.c b/sys/kern/kern_pmc.c index 6d5d7af..da331ca 100644 --- a/sys/kern/kern_pmc.c +++ b/sys/kern/kern_pmc.c @@ -1,5 +1,10 @@ /*- - * Copyright (c) 2003-2005, Joseph Koshy + * Copyright (c) 2003-2007 Joseph Koshy + * Copyright (c) 2007 The FreeBSD Foundation + * All rights reserved. + * + * Portions of this software were developed by A. Joseph Koshy under + * sponsorship from the FreeBSD Foundation and Google, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -45,7 +50,7 @@ const int pmc_kernel_version = PMC_KERNEL_VERSION; int (*pmc_hook)(struct thread *td, int function, void *arg) = NULL; /* Interrupt handler */ -int (*pmc_intr)(int cpu, uintptr_t pc, int usermode) = NULL; +int (*pmc_intr)(int cpu, struct trapframe *tf) = NULL; /* Bitmask of CPUs requiring servicing at hardclock time */ volatile cpumask_t pmc_cpumask; @@ -66,7 +71,14 @@ volatile int pmc_ss_count; * somewhat more expensive than a simple 'if' check and indirect call. */ struct sx pmc_sx; -SX_SYSINIT(pmc, &pmc_sx, "pmc shared lock"); + +static void +pmc_init_sx(void) +{ + sx_init_flags(&pmc_sx, "pmc-sx", SX_NOWITNESS); +} + +SYSINIT(pmcsx, SI_SUB_LOCK, SI_ORDER_MIDDLE, pmc_init_sx, NULL); /* * Helper functions |
