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authorSantosh Shilimkar <santosh.shilimkar@ti.com>2011-02-23 18:53:15 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-02-23 17:54:27 +0000
commitaf90f10d3826525306c96d423df240210640cb72 (patch)
tree1b4e2fa6e483b0bb9ced44a9e36a9dceff384c8e /arch/arm/kernel
parentd77e270c53a4911d23ded9f4ab8b175a3fe3bb34 (diff)
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>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/smp.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 4539ebcb089..8fe05ad932e 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -474,13 +474,12 @@ static void smp_timer_broadcast(const struct cpumask *mask)
#define smp_timer_broadcast NULL
#endif
-#ifndef CONFIG_LOCAL_TIMERS
static void broadcast_timer_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt)
{
}
-static void local_timer_setup(struct clock_event_device *evt)
+static void broadcast_timer_setup(struct clock_event_device *evt)
{
evt->name = "dummy_timer";
evt->features = CLOCK_EVT_FEAT_ONESHOT |
@@ -492,7 +491,6 @@ static void local_timer_setup(struct clock_event_device *evt)
clockevents_register_device(evt);
}
-#endif
void __cpuinit percpu_timer_setup(void)
{
@@ -502,7 +500,8 @@ void __cpuinit percpu_timer_setup(void)
evt->cpumask = cpumask_of(cpu);
evt->broadcast = smp_timer_broadcast;
- local_timer_setup(evt);
+ if (local_timer_setup(evt))
+ broadcast_timer_setup(evt);
}
#ifdef CONFIG_HOTPLUG_CPU