uml: GENERIC_CLOCKEVENTS support

Enable CONFIG_GENERIC_CLOCKEVENTS.

timer_irq gets its name changed to timer_handler, and becomes the recipient of
timer signals.

The clock_event_device is set up to imitate the current ticking clock, i.e.
CLOCK_EVT_FEAT_ONESHOT is not enabled yet.

disable_timer now doesn't ignore SIGALRM and SIGVTALRM because that breaks
delay calibration.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 53597bbcd7b0..64fe8d5c067a 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -59,6 +59,10 @@ config GENERIC_TIME
         bool
         default y
 
+config GENERIC_CLOCKEVENTS
+        bool
+        default y
+
 # Used in kernel/irq/manage.c and include/linux/irq.h
 config IRQ_RELEASE_METHOD
         bool