static void __iomem *b15_rac_base;
static DEFINE_SPINLOCK(rac_lock);
+
static u32 rac_config0_reg;
/* Initialization flag to avoid checking for b15_rac_base, and to prevent
.notifier_call = b15_rac_reboot_notifier,
};
-#ifdef CONFIG_HOTPLUG_CPU
/* The CPU hotplug case is the most interesting one, we basically need to make
* sure that the RAC is disabled for the entire system prior to having a CPU
* die, in particular prior to this dying CPU having exited the coherency
return 0;
}
-#endif /* CONFIG_HOTPLUG_CPU */
-#ifdef CONFIG_PM_SLEEP
static int b15_rac_suspend(void)
{
/* Suspend the read-ahead cache oeprations, forcing our cache
.suspend = b15_rac_suspend,
.resume = b15_rac_resume,
};
-#endif
static int __init b15_rac_init(void)
{
goto out;
}
-#ifdef CONFIG_HOTPLUG_CPU
- ret = cpuhp_setup_state_nocalls(CPUHP_AP_ARM_CACHE_B15_RAC_DEAD,
+ if (IS_ENABLED(CONFIG_HOTPLUG_CPU)) {
+ ret = cpuhp_setup_state_nocalls(CPUHP_AP_ARM_CACHE_B15_RAC_DEAD,
"arm/cache-b15-rac:dead",
NULL, b15_rac_dead_cpu);
- if (ret)
- goto out_unmap;
+ if (ret)
+ goto out_unmap;
- ret = cpuhp_setup_state_nocalls(CPUHP_AP_ARM_CACHE_B15_RAC_DYING,
+ ret = cpuhp_setup_state_nocalls(CPUHP_AP_ARM_CACHE_B15_RAC_DYING,
"arm/cache-b15-rac:dying",
NULL, b15_rac_dying_cpu);
- if (ret)
- goto out_cpu_dead;
-#endif
+ if (ret)
+ goto out_cpu_dead;
+ }
-#ifdef CONFIG_PM_SLEEP
- register_syscore_ops(&b15_rac_syscore_ops);
-#endif
+ if (IS_ENABLED(CONFIG_PM_SLEEP))
+ register_syscore_ops(&b15_rac_syscore_ops);
spin_lock(&rac_lock);
reg = __raw_readl(b15_rac_base + RAC_CONFIG0_REG);