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SubjectRe: [PATCH] arm: Initialize hrtimer-based broadcast clockevent
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On 2018-01-22 07:06, Jan Kiszka wrote:
> Analogously to 9358d755bd5c, this registers a broadcast clockevent in
> case no hardware broadcast timer is available and the per-CPU timers can
> be stopped in deep power states.
>
> Partitions of the Jailhouse hypervisor fall in this category.
> Registering the workaround timer allows to enter high-resolution mode in
> that case.
>
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> ---
> arch/arm/kernel/time.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
> index 629f8e9981f1..0a45d861ef8e 100644
> --- a/arch/arm/kernel/time.c
> +++ b/arch/arm/kernel/time.c
> @@ -12,6 +12,7 @@
> * reading the RTC at bootup, etc...
> */
> #include <linux/clk-provider.h>
> +#include <linux/clockchips.h>
> #include <linux/clocksource.h>
> #include <linux/errno.h>
> #include <linux/export.h>
> @@ -121,5 +122,7 @@ void __init time_init(void)
> of_clk_init(NULL);
> #endif
> timer_probe();
> +
> + tick_setup_hrtimer_broadcast();
> }
> }
>

Gentle ping, just to avoid that this falls through the cracks because
it's so small.

Jan

--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux

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