diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2025-03-14 11:00:56 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2025-04-23 10:08:34 +0200 |
| commit | 3290e9f98a2d3c43c0c9b89a73affa3aaebe62a3 (patch) | |
| tree | ad4d18b65ca1e371f2318caf4e26a6c1d250ff95 | |
| parent | 9861f21ff16b6cd919144dae7ff355d5145a3474 (diff) | |
cpuidle: psci: Move the per CPU variable domain_state to a struct
To prepare to extend the per CPU variable domain_state to include more
data, let's move it into a struct. A subsequent change will add the new
data. This change have no intended functional impact.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250314100103.1294715-3-ulf.hansson@linaro.org
| -rw-r--r-- | drivers/cpuidle/cpuidle-psci.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/cpuidle/cpuidle-psci.c b/drivers/cpuidle/cpuidle-psci.c index b46a83f5ffe4..b66c98a1c2e2 100644 --- a/drivers/cpuidle/cpuidle-psci.c +++ b/drivers/cpuidle/cpuidle-psci.c @@ -36,19 +36,28 @@ struct psci_cpuidle_data { struct device *dev; }; +struct psci_cpuidle_domain_state { + u32 state; +}; + static DEFINE_PER_CPU_READ_MOSTLY(struct psci_cpuidle_data, psci_cpuidle_data); -static DEFINE_PER_CPU(u32, domain_state); +static DEFINE_PER_CPU(struct psci_cpuidle_domain_state, psci_domain_state); static bool psci_cpuidle_use_syscore; static bool psci_cpuidle_use_cpuhp; void psci_set_domain_state(u32 state) { - __this_cpu_write(domain_state, state); + __this_cpu_write(psci_domain_state.state, state); } static inline u32 psci_get_domain_state(void) { - return __this_cpu_read(domain_state); + return __this_cpu_read(psci_domain_state.state); +} + +static inline void psci_clear_domain_state(void) +{ + __this_cpu_write(psci_domain_state.state, 0); } static __cpuidle int __psci_enter_domain_idle_state(struct cpuidle_device *dev, @@ -87,7 +96,7 @@ static __cpuidle int __psci_enter_domain_idle_state(struct cpuidle_device *dev, cpu_pm_exit(); /* Clear the domain state to start fresh when back from idle. */ - psci_set_domain_state(0); + psci_clear_domain_state(); return ret; } @@ -121,7 +130,7 @@ static int psci_idle_cpuhp_down(unsigned int cpu) if (pd_dev) { pm_runtime_put_sync(pd_dev); /* Clear domain state to start fresh at next online. */ - psci_set_domain_state(0); + psci_clear_domain_state(); } return 0; @@ -147,7 +156,7 @@ static void psci_idle_syscore_switch(bool suspend) /* Clear domain state to re-start fresh. */ if (!cleared) { - psci_set_domain_state(0); + psci_clear_domain_state(); cleared = true; } } |