| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.10 02/62] clocksource: em_sti: Set cpu_possible_mask to fix SMP broadcast | Date | Mon, 13 Jan 2014 16:26:27 -0800 |
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3.10-stable review patch. If anyone has any objections, please let me know.
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From: Magnus Damm <damm@opensource.se>
commit 2199a5574b6d94b9ca26c6345356f45ec60fef8b upstream.
Update the STI driver by setting cpu_possible_mask to make EMEV2 SMP work as expected together with the ARM broadcast timer.
This breakage was introduced by:
f7db706 ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event
Without this fix SMP operation is broken on EMEV2 since no broadcast timer interrupts trigger on the secondary CPU cores.
Signed-off-by: Magnus Damm <damm@opensource.se> Tested-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/clocksource/em_sti.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/clocksource/em_sti.c +++ b/drivers/clocksource/em_sti.c @@ -301,7 +301,7 @@ static void em_sti_register_clockevent(s ced->name = dev_name(&p->pdev->dev); ced->features = CLOCK_EVT_FEAT_ONESHOT; ced->rating = 200; - ced->cpumask = cpumask_of(0); + ced->cpumask = cpu_possible_mask; ced->set_next_event = em_sti_clock_event_next; ced->set_mode = em_sti_clock_event_mode;
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