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| author | Mark Brown <broonie@kernel.org> | 2020-12-28 17:20:00 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-12-28 17:20:00 +0300 |
| commit | 2ae6f64ce1ce304b502461fdfe0b96c8171ae2cc (patch) | |
| tree | 88e987c447daf2c29e2d4c15e58d1029b0cc78c2 /drivers/cpuidle/cpuidle-psci.c | |
| parent | 3b66e4a8e58a85af3212c7117d7a29c9ef6679a2 (diff) | |
| parent | 5c8fe583cce542aa0b84adc939ce85293de36e5e (diff) | |
| download | linux-2ae6f64ce1ce304b502461fdfe0b96c8171ae2cc.tar.xz | |
Merge tag 'v5.11-rc1' into regulator-5.11
Linux 5.11-rc1
Diffstat (limited to 'drivers/cpuidle/cpuidle-psci.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle-psci.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/drivers/cpuidle/cpuidle-psci.c b/drivers/cpuidle/cpuidle-psci.c index d928b37718bd..b51b5df08450 100644 --- a/drivers/cpuidle/cpuidle-psci.c +++ b/drivers/cpuidle/cpuidle-psci.c @@ -19,6 +19,7 @@ #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/psci.h> +#include <linux/pm_domain.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/string.h> @@ -52,8 +53,9 @@ static inline int psci_enter_state(int idx, u32 state) return CPU_PM_CPU_IDLE_ENTER_PARAM(psci_cpu_suspend_enter, idx, state); } -static int psci_enter_domain_idle_state(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int idx) +static int __psci_enter_domain_idle_state(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int idx, + bool s2idle) { struct psci_cpuidle_data *data = this_cpu_ptr(&psci_cpuidle_data); u32 *states = data->psci_states; @@ -66,7 +68,12 @@ static int psci_enter_domain_idle_state(struct cpuidle_device *dev, return -1; /* Do runtime PM to manage a hierarchical CPU toplogy. */ - RCU_NONIDLE(pm_runtime_put_sync_suspend(pd_dev)); + rcu_irq_enter_irqson(); + if (s2idle) + dev_pm_genpd_suspend(pd_dev); + else + pm_runtime_put_sync_suspend(pd_dev); + rcu_irq_exit_irqson(); state = psci_get_domain_state(); if (!state) @@ -74,7 +81,12 @@ static int psci_enter_domain_idle_state(struct cpuidle_device *dev, ret = psci_cpu_suspend_enter(state) ? -1 : idx; - RCU_NONIDLE(pm_runtime_get_sync(pd_dev)); + rcu_irq_enter_irqson(); + if (s2idle) + dev_pm_genpd_resume(pd_dev); + else + pm_runtime_get_sync(pd_dev); + rcu_irq_exit_irqson(); cpu_pm_exit(); @@ -83,6 +95,19 @@ static int psci_enter_domain_idle_state(struct cpuidle_device *dev, return ret; } +static int psci_enter_domain_idle_state(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int idx) +{ + return __psci_enter_domain_idle_state(dev, drv, idx, false); +} + +static int psci_enter_s2idle_domain_idle_state(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int idx) +{ + return __psci_enter_domain_idle_state(dev, drv, idx, true); +} + static int psci_idle_cpuhp_up(unsigned int cpu) { struct device *pd_dev = __this_cpu_read(psci_cpuidle_data.dev); @@ -170,6 +195,7 @@ static int psci_dt_cpu_init_topology(struct cpuidle_driver *drv, * deeper states. */ drv->states[state_count - 1].enter = psci_enter_domain_idle_state; + drv->states[state_count - 1].enter_s2idle = psci_enter_s2idle_domain_idle_state; psci_cpuidle_use_cpuhp = true; return 0; |