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authorIngo Molnar <mingo@elte.hu>2008-11-10 09:10:44 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-10 09:10:44 +0100
commita5a64498c194c82ecad3a2d67cff6231cda8d3dd (patch)
tree723d5d81419f9960b8d30ed9a2ece8a58d6c4328 /arch/sh/kernel/timers/timer-broadcast.c
parentbb93d802ae5c1949977cc6da247b218240677f11 (diff)
parentf7160c7573615ec82c691e294cf80d920b5d588d (diff)
Merge commit 'v2.6.28-rc4' into timers/rtc
Conflicts: drivers/rtc/rtc-cmos.c
Diffstat (limited to 'arch/sh/kernel/timers/timer-broadcast.c')
-rw-r--r--arch/sh/kernel/timers/timer-broadcast.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/sh/kernel/timers/timer-broadcast.c b/arch/sh/kernel/timers/timer-broadcast.c
new file mode 100644
index 000000000000..c2317635230f
--- /dev/null
+++ b/arch/sh/kernel/timers/timer-broadcast.c
@@ -0,0 +1,57 @@
+/*
+ * Dummy local timer
+ *
+ * Copyright (C) 2008 Paul Mundt
+ *
+ * cloned from:
+ *
+ * linux/arch/arm/mach-realview/localtimer.c
+ *
+ * Copyright (C) 2002 ARM Ltd.
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/smp.h>
+#include <linux/jiffies.h>
+#include <linux/percpu.h>
+#include <linux/clockchips.h>
+#include <linux/irq.h>
+
+static DEFINE_PER_CPU(struct clock_event_device, local_clockevent);
+
+/*
+ * Used on SMP for either the local timer or SMP_MSG_TIMER
+ */
+void local_timer_interrupt(void)
+{
+ struct clock_event_device *clk = &__get_cpu_var(local_clockevent);
+
+ clk->event_handler(clk);
+}
+
+static void dummy_timer_set_mode(enum clock_event_mode mode,
+ struct clock_event_device *clk)
+{
+}
+
+void __cpuinit local_timer_setup(unsigned int cpu)
+{
+ struct clock_event_device *clk = &per_cpu(local_clockevent, cpu);
+
+ clk->name = "dummy_timer";
+ clk->features = CLOCK_EVT_FEAT_DUMMY;
+ clk->rating = 200;
+ clk->mult = 1;
+ clk->set_mode = dummy_timer_set_mode;
+ clk->broadcast = smp_timer_broadcast;
+ clk->cpumask = cpumask_of_cpu(cpu);
+
+ clockevents_register_device(clk);
+}