On 04/03/2021 08:37, Tony Lindgren wrote: > There is a timer wrap issue on dra7 for the ARM architected timer. > In a typical clock configuration the timer fails to wrap after 388 days. > > To work around the issue, we need to use timer-ti-dm timers instead. > > Let's prepare for adding support for percpu timers by adding a common > dmtimer_clkevt_init_common() and call it from dmtimer_clockevent_init(). > This patch makes no intentional functional changes. > > Signed-off-by: Tony Lindgren <[email protected]> > ---
[ ... ] > @@ -575,33 +574,60 @@ static int __init dmtimer_clockevent_init(struct > device_node *np) > */ > writel_relaxed(OMAP_TIMER_CTRL_POSTED, t->base + t->ifctrl); > > + if (dev->cpumask == cpu_possible_mask) > + irqflags = IRQF_TIMER; > + else > + irqflags = IRQF_TIMER | IRQF_NOBALANCING; Can you explain the reasoning behind the test above ? [ ... ] -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog
