clockevents: Add generic timer broadcast receiver
authorMark Rutland <mark.rutland@arm.com>
Mon, 14 Jan 2013 17:05:21 +0000 (17:05 +0000)
committerThomas Gleixner <tglx@linutronix.de>
Thu, 31 Jan 2013 21:15:35 +0000 (22:15 +0100)
commit12572dbb53638c6e454ef831c8fee7de3df24389
treedac15b3d75adb3a33f3868b70a6dcf0b63c55b91
parent04c2eee5b9dfcb13f3cd07a5537fb8c785f2751a
clockevents: Add generic timer broadcast receiver

Currently the broadcast mechanism used for timers is abstracted by a
function pointer on struct clock_event_device. As the fundamental
mechanism for broadcast is architecture-specific, this ties each
clock_event_device driver to a single architecture, even where the
driver is otherwise generic.

This patch adds a standard path for the receipt of timer broadcasts, so
drivers and/or architecture backends need not manage redundant lists of
timers for the purpose of routing broadcast timer ticks.

[tglx: Made the implementation depend on the config switch as well ]

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: nico@linaro.org
Cc: Will.Deacon@arm.com
Cc: Marc.Zyngier@arm.com
Cc: john.stultz@linaro.org
Link: http://lkml.kernel.org/r/1358183124-28461-2-git-send-email-mark.rutland@arm.com
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
include/linux/clockchips.h
kernel/time/tick-broadcast.c