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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_X86_CPUMASK_H #define _ASM_X86_CPUMASK_H #ifndef __ASSEMBLY__ #include <linux/cpumask.h> extern cpumask_var_t cpu_callin_mask; extern cpumask_var_t cpu_callout_mask; extern cpumask_var_t cpu_initialized_mask; extern cpumask_var_t cpu_sibling_setup_mask; extern void setup_cpu_local_masks(void); /* * NMI and MCE exceptions need cpu_is_offline() _really_ early, * provide an arch_ special for them to avoid instrumentation. */ #if NR_CPUS > 1 static __always_inline bool arch_cpu_online(int cpu) { return arch_test_bit(cpu, cpumask_bits(cpu_online_mask)); } #else static __always_inline bool arch_cpu_online(int cpu) { return cpu == 0; } #endif #define arch_cpu_is_offline(cpu) unlikely(!arch_cpu_online(cpu)) #endif /* __ASSEMBLY__ */ #endif /* _ASM_X86_CPUMASK_H */
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