1 files changed, 74 insertions, 0 deletions
diff --git a/arch/blackfin/oprofile/timer_int.c b/arch/blackfin/oprofile/timer_int.c
new file mode 100644
index 000000000000..8fba16c846c9
--- /dev/null
+++ b/arch/blackfin/oprofile/timer_int.c
@@ -0,0 +1,74 @@
+/*
+ * 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 <asm/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;
+}