On 07/03/2021 03:24, guoren@xxxxxxxxxx wrote: > From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> > > When percpu-timers are stopped by deep power saving mode, we need > system timer help to broadcast IPI_TIMER. > > This is first introduced by broken x86 hardware, where the local apic > timer stops in C3 state. But many other architectures(powerpc, mips, > arm, hexagon, openrisc, sh) have supported the infrastructure to > deal with Power Management issues. > > Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> > Cc: Arnd Bergmann <arnd@xxxxxxxx> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> > --- Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> -- <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
