mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-27 11:55:53 +00:00
1f83b8f148
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/*
|
|
* File: arch/blackfin/oprofile/timer_int.c
|
|
* Based on:
|
|
* Author: Michael Kang
|
|
*
|
|
* Created:
|
|
* Description:
|
|
*
|
|
* Modified:
|
|
* Copyright 2004-2006 Analog Devices Inc.
|
|
*
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see the file COPYING, or write
|
|
* to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/oprofile.h>
|
|
#include <linux/ptrace.h>
|
|
|
|
static void enable_sys_timer0()
|
|
{
|
|
}
|
|
static void disable_sys_timer0()
|
|
{
|
|
}
|
|
|
|
static irqreturn_t sys_timer0_int_handler(int irq, void *dev_id,
|
|
struct pt_regs *regs)
|
|
{
|
|
oprofile_add_sample(regs, 0);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int sys_timer0_start(void)
|
|
{
|
|
enable_sys_timer0();
|
|
return request_irq(IVG11, sys_timer0_int_handler, 0, "sys_timer0", NULL);
|
|
}
|
|
|
|
static void sys_timer0_stop(void)
|
|
{
|
|
disable_sys_timer();
|
|
}
|
|
|
|
int __init sys_timer0_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;
|
|
}
|