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Author SHA1 Message Date
Santosh Shilimkar af90f10d38 ARM: 6759/1: smp: Select local timers vs broadcast timer support runtime 
The current code support of dummy timers in absence of local
timer is compile time. This is an attempt to convert it to runtime
so that on few SOC version if the local timers aren't supported
kernel can switch to dummy timers. OMAP4430 ES1.0 does suffer from
this limitation.

This patch should not have any functional impact on affected
files.

Cc: Daniel Walker <dwalker@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Colin Cross <ccross@android.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2011-02-23 17:54:27 +00:00
Russell King 10034aabca ARM: localtimer: clean up local timer on hot unplug 
When a CPU is hot unplugged, the generic tick code cleans up the
clock event device, but fails to call down to the device's set_mode
function to actually shut the device down.

To work around this, we've historically had a local_timer_stop()
callback out of the hotplug code.  However, this adds needless
complexity when we have the clock event device itself available.

Explicitly call the clock event device's set_mode function with
CLOCK_EVT_MODE_UNUSED, so that the hardware can be cleanly shutdown
without any special external callbacks.  When/if the generic code
is fixed, percpu_timer_stop() can be killed off.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2010-12-20 15:09:16 +00:00
Russell King f32f4ce257 [ARM] smp: allow re-use of realview localtimer TWD support 
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2009-05-17 19:16:41 +01:00
Russell King bc28248ee2 [ARM] smp: move core localtimer support out of platform specific files 
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2009-05-17 18:58:34 +01:00