Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=791a644a8d73a9b95515f074afbb3caa0a9964fa
Commit: 791a644a8d73a9b95515f074afbb3caa0a9964fa
Parent: 31ccc1f524b626abcf5e043ad32b881219223c34
Author: Jeff Dike <[EMAIL PROTECTED]>
AuthorDate: Tue Oct 16 01:27:25 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Oct 16 09:43:08 2007 -0700
uml: clocksource support
Add clocksource support.
Signed-off-by: Jeff Dike <[EMAIL PROTECTED]>
Cc: Thomas Gleixner <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
arch/um/kernel/time.c | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index 0167848..3cb7135 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -97,6 +97,21 @@ static irqreturn_t um_timer(int irq, void *dev)
return IRQ_HANDLED;
}
+static cycle_t itimer_read(void)
+{
+ return os_nsecs();
+}
+
+static struct clocksource itimer_clocksource = {
+ .name = "itimer",
+ .rating = 300,
+ .read = itimer_read,
+ .mask = CLOCKSOURCE_MASK(64),
+ .mult = 1,
+ .shift = 0,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
static void __init setup_itimer(void)
{
int err;
@@ -111,6 +126,11 @@ static void __init setup_itimer(void)
clockevent_delta2ns(60 * HZ, &itimer_clockevent);
itimer_clockevent.min_delta_ns =
clockevent_delta2ns(1, &itimer_clockevent);
+ err = clocksource_register(&itimer_clocksource);
+ if (err) {
+ printk(KERN_ERR "clocksource_register returned %d\n", err);
+ return;
+ }
clockevents_register_device(&itimer_clockevent);
}
-
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