1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_X86_CPUMASK_H
3 #define _ASM_X86_CPUMASK_H
5 #include <linux/cpumask.h>
7 extern cpumask_var_t cpu_callin_mask;
8 extern cpumask_var_t cpu_callout_mask;
9 extern cpumask_var_t cpu_initialized_mask;
10 extern cpumask_var_t cpu_sibling_setup_mask;
12 extern void setup_cpu_local_masks(void);
15 * NMI and MCE exceptions need cpu_is_offline() _really_ early,
16 * provide an arch_ special for them to avoid instrumentation.
19 static __always_inline bool arch_cpu_online(int cpu)
21 return arch_test_bit(cpu, cpumask_bits(cpu_online_mask));
24 static __always_inline bool arch_cpu_online(int cpu)
30 #define arch_cpu_is_offline(cpu) unlikely(!arch_cpu_online(cpu))
32 #endif /* __ASSEMBLY__ */
33 #endif /* _ASM_X86_CPUMASK_H */