From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/i386/oprofile/nmi_timer_int.c | 55 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 arch/i386/oprofile/nmi_timer_int.c (limited to 'arch/i386/oprofile/nmi_timer_int.c') diff --git a/arch/i386/oprofile/nmi_timer_int.c b/arch/i386/oprofile/nmi_timer_int.c new file mode 100644 index 00000000000..b2e462abf33 --- /dev/null +++ b/arch/i386/oprofile/nmi_timer_int.c @@ -0,0 +1,55 @@ +/** + * @file nmi_timer_int.c + * + * @remark Copyright 2003 OProfile authors + * @remark Read the file COPYING + * + * @author Zwane Mwaikambo + */ + +#include +#include +#include +#include +#include + + +#include +#include +#include + +static int nmi_timer_callback(struct pt_regs * regs, int cpu) +{ + oprofile_add_sample(regs, 0); + return 1; +} + +static int timer_start(void) +{ + disable_timer_nmi_watchdog(); + set_nmi_callback(nmi_timer_callback); + return 0; +} + + +static void timer_stop(void) +{ + enable_timer_nmi_watchdog(); + unset_nmi_callback(); + synchronize_kernel(); +} + + +int __init nmi_timer_init(struct oprofile_operations * ops) +{ + extern int nmi_active; + + if (nmi_active <= 0) + return -ENODEV; + + ops->start = timer_start; + ops->stop = timer_stop; + ops->cpu_type = "timer"; + printk(KERN_INFO "oprofile: using NMI timer interrupt.\n"); + return 0; +} -- cgit v1.2.3