On 07/19/2013 03:25 AM, Joseph Lo wrote: > This series introduce CPU core power down state for CPU idle. When CPU go > into this state, it saves it's context and needs a proper configuration > in flow controller to power gate the CPU when CPU runs into WFI > instruction. And the CPU also needs to set the IRQ as CPU power down idle > wake up event in flow controller. > > To prevent race conditions and ensure proper interrupt routing on > Cortex-A15 CPUs when they are power-gated, add a CPU PM notifier > call-back to reprogram the GIC CPU interface on PM entry. The > GIC CPU interface will be reset back to its normal state by > the common GIC CPU PM exit callback when the CPU wakes up. > > And the Tegra114 support CPU0 hotplug function in HW physically, but it > needs other software to make it work normally after we add CPU idle power > down mode support. But we don't support that yet, removing them for now. OK, this version works fine, so I have applied it to Tegra's for-3.12/soc. I hope we can resolve the issues with CPUIDLE_FLAG_TIMER_STOP and CPU0 hot plug soon though. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
