| 1 | /* SPDX-License-Identifier: GPL-2.0 */ | 
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| 2 | #ifndef _ASM_X86_CPU_H | 
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| 3 | #define _ASM_X86_CPU_H | 
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| 4 |  | 
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| 5 | #include <linux/device.h> | 
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| 6 | #include <linux/cpu.h> | 
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| 7 | #include <linux/topology.h> | 
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| 8 | #include <linux/nodemask.h> | 
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| 9 | #include <linux/percpu.h> | 
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| 10 | #include <asm/ibt.h> | 
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| 11 |  | 
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| 12 | #ifndef CONFIG_SMP | 
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| 13 | #define cpu_physical_id(cpu)			boot_cpu_physical_apicid | 
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| 14 | #define cpu_acpi_id(cpu)			0 | 
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| 15 | #endif /* CONFIG_SMP */ | 
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| 16 |  | 
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| 17 | #ifdef CONFIG_HOTPLUG_CPU | 
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| 18 | extern void soft_restart_cpu(void); | 
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| 19 | #endif | 
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| 20 |  | 
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| 21 | extern void ap_init_aperfmperf(void); | 
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| 22 |  | 
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| 23 | int mwait_usable(const struct cpuinfo_x86 *); | 
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| 24 |  | 
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| 25 | unsigned int x86_family(unsigned int sig); | 
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| 26 | unsigned int x86_model(unsigned int sig); | 
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| 27 | unsigned int x86_stepping(unsigned int sig); | 
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| 28 | #ifdef CONFIG_X86_BUS_LOCK_DETECT | 
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| 29 | extern void __init sld_setup(struct cpuinfo_x86 *c); | 
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| 30 | extern bool handle_user_split_lock(struct pt_regs *regs, long error_code); | 
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| 31 | extern bool handle_guest_split_lock(unsigned long ip); | 
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| 32 | extern void handle_bus_lock(struct pt_regs *regs); | 
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| 33 | void split_lock_init(void); | 
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| 34 | void bus_lock_init(void); | 
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| 35 | #else | 
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| 36 | static inline void __init sld_setup(struct cpuinfo_x86 *c) {} | 
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| 37 | static inline bool handle_user_split_lock(struct pt_regs *regs, long error_code) | 
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| 38 | { | 
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| 39 | return false; | 
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| 40 | } | 
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| 41 |  | 
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| 42 | static inline bool handle_guest_split_lock(unsigned long ip) | 
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| 43 | { | 
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| 44 | return false; | 
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| 45 | } | 
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| 46 |  | 
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| 47 | static inline void handle_bus_lock(struct pt_regs *regs) {} | 
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| 48 | static inline void split_lock_init(void) {} | 
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| 49 | static inline void bus_lock_init(void) {} | 
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| 50 | #endif | 
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| 51 |  | 
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| 52 | #ifdef CONFIG_IA32_FEAT_CTL | 
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| 53 | void init_ia32_feat_ctl(struct cpuinfo_x86 *c); | 
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| 54 | #else | 
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| 55 | static inline void init_ia32_feat_ctl(struct cpuinfo_x86 *c) {} | 
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| 56 | #endif | 
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| 57 |  | 
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| 58 | extern __noendbr void cet_disable(void); | 
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| 59 |  | 
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| 60 | struct cpu_signature; | 
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| 61 |  | 
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| 62 | void intel_collect_cpu_info(struct cpu_signature *sig); | 
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| 63 |  | 
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| 64 | extern u64 x86_read_arch_cap_msr(void); | 
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| 65 | bool intel_find_matching_signature(void *mc, struct cpu_signature *sig); | 
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| 66 | int intel_microcode_sanity_check(void *mc, bool print_err, int hdr_type); | 
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| 67 |  | 
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| 68 | extern struct cpumask cpus_stop_mask; | 
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| 69 |  | 
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| 70 | #endif /* _ASM_X86_CPU_H */ | 
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| 71 |  | 
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