2 * File: arch/blackfin/oprofile/timer_int.c
10 * Copyright 2004-2006 Analog Devices Inc.
12 * Bugs: Enter bugs at http://blackfin.uclinux.org/
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, see the file COPYING, or write
26 * to the Free Software Foundation, Inc.,
27 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
30 #include <linux/init.h>
31 #include <linux/smp.h>
32 #include <linux/irq.h>
33 #include <linux/oprofile.h>
34 #include <linux/ptrace.h>
36 static void enable_sys_timer0()
39 static void disable_sys_timer0()
43 static irqreturn_t sys_timer0_int_handler(int irq, void *dev_id,
46 oprofile_add_sample(regs, 0);
50 static int sys_timer0_start(void)
53 return request_irq(IVG11, sys_timer0_int_handler, 0, "sys_timer0", NULL);
56 static void sys_timer0_stop(void)
61 int __init sys_timer0_init(struct oprofile_operations *ops)
63 extern int nmi_active;
68 ops->start = timer_start;
69 ops->stop = timer_stop;
70 ops->cpu_type = "timer";
71 printk(KERN_INFO "oprofile: using NMI timer interrupt.\n");