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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
pull/1250/head
Ulf Hansson 2025-03-14 11:00:56 +01:00
parent 9861f21ff1
commit 3290e9f98a
1 changed files with 15 additions and 6 deletions
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21
drivers/cpuidle/cpuidle-psci.c
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@ -36,19 +36,28 @@ struct psci_cpuidle_data {
struct device *dev; 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_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_syscore;
static bool psci_cpuidle_use_cpuhp; static bool psci_cpuidle_use_cpuhp;
void psci_set_domain_state(u32 state) 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) 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, 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(); cpu_pm_exit();
/* Clear the domain state to start fresh when back from idle. */ /* Clear the domain state to start fresh when back from idle. */
psci_set_domain_state(0); psci_clear_domain_state();
return ret; return ret;
} }
@ -121,7 +130,7 @@ static int psci_idle_cpuhp_down(unsigned int cpu)
if (pd_dev) { if (pd_dev) {
pm_runtime_put_sync(pd_dev); pm_runtime_put_sync(pd_dev);
/* Clear domain state to start fresh at next online. */ /* Clear domain state to start fresh at next online. */
psci_set_domain_state(0); psci_clear_domain_state();
} }
return 0; return 0;
@ -147,7 +156,7 @@ static void psci_idle_syscore_switch(bool suspend)
/* Clear domain state to re-start fresh. */ /* Clear domain state to re-start fresh. */
if (!cleared) { if (!cleared) {
psci_set_domain_state(0); psci_clear_domain_state();
cleared = true; cleared = true;
} }
} }