projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1965aae3 PA |
2 | #ifndef _ASM_X86_CPU_H |
| 3 | #define _ASM_X86_CPU_H | |
| 1da177e4 LT |
4 | |
| 5 | #include <linux/device.h> | |
| 6 | #include <linux/cpu.h> | |
| 7 | #include <linux/topology.h> | |
| 8 | #include <linux/nodemask.h> | |
| f3705136 | 9 | #include <linux/percpu.h> |
| 1da177e4 | 10 | |
| 6e5385d4 JSR |
11 | #ifdef CONFIG_SMP |
| 12 | ||
| 13 | extern void prefill_possible_map(void); | |
| 14 | ||
| 15 | #else /* CONFIG_SMP */ | |
| 16 | ||
| 17 | static inline void prefill_possible_map(void) {} | |
| 18 | ||
| af8968ab | 19 | #define cpu_physical_id(cpu) boot_cpu_physical_apicid |
| 3e9e57fa | 20 | #define cpu_acpi_id(cpu) 0 |
| 96b89dc6 | 21 | #define safe_smp_processor_id() 0 |
| f472cdba | 22 | |
| 6e5385d4 JSR |
23 | #endif /* CONFIG_SMP */ |
| 24 | ||
| 30964d54 | 25 | struct x86_cpu { |
| 1da177e4 LT |
26 | struct cpu cpu; |
| 27 | }; | |
| d9874026 | 28 | |
| 1da177e4 | 29 | #ifdef CONFIG_HOTPLUG_CPU |
| d9874026 | 30 | extern int arch_register_cpu(int num); |
| 1da177e4 | 31 | extern void arch_unregister_cpu(int); |
| 148f9bb8 | 32 | extern void start_cpu0(void); |
| a71c8bc5 FY |
33 | #ifdef CONFIG_DEBUG_HOTPLUG_CPU0 |
| 34 | extern int _debug_hotplug_cpu(int cpu, int action); | |
| 35 | #endif | |
| 1da177e4 LT |
36 | #endif |
| 37 | ||
| 1c9d16e3 | 38 | int mwait_usable(const struct cpuinfo_x86 *); |
| 6d652ea1 | 39 | |
| 99f925ce BP |
40 | unsigned int x86_family(unsigned int sig); |
| 41 | unsigned int x86_model(unsigned int sig); | |
| 42 | unsigned int x86_stepping(unsigned int sig); | |
| 1965aae3 | 43 | #endif /* _ASM_X86_CPU_H */ |