1 /* SPDX-License-Identifier: GPL-2.0 */
5 /* attempt to consolidate cpu attributes */
9 /* some have two possibilities for cpuid string */
10 const char *c_ident[2];
12 void (*c_early_init)(struct cpuinfo_x86 *);
13 void (*c_bsp_init)(struct cpuinfo_x86 *);
14 void (*c_init)(struct cpuinfo_x86 *);
15 void (*c_identify)(struct cpuinfo_x86 *);
16 void (*c_detect_tlb)(struct cpuinfo_x86 *);
19 /* Optional vendor specific routine to obtain the cache size. */
20 unsigned int (*legacy_cache_size)(struct cpuinfo_x86 *,
23 /* Family/stepping-based lookup table for model names. */
24 struct legacy_cpu_model_info {
26 const char *model_names[16];
32 unsigned char descriptor;
35 /* unsigned int ways; */
39 #define cpu_dev_register(cpu_devX) \
40 static const struct cpu_dev *const __cpu_dev_##cpu_devX __used \
41 __attribute__((__section__(".x86_cpu_dev.init"))) = \
44 extern const struct cpu_dev *const __x86_cpu_dev_start[],
45 *const __x86_cpu_dev_end[];
47 #ifdef CONFIG_CPU_SUP_INTEL
48 enum tsx_ctrl_states {
51 TSX_CTRL_NOT_SUPPORTED,
54 extern __ro_after_init enum tsx_ctrl_states tsx_ctrl_state;
56 extern void __init tsx_init(void);
57 extern void tsx_enable(void);
58 extern void tsx_disable(void);
60 static inline void tsx_init(void) { }
61 #endif /* CONFIG_CPU_SUP_INTEL */
63 extern void get_cpu_cap(struct cpuinfo_x86 *c);
64 extern void get_cpu_address_sizes(struct cpuinfo_x86 *c);
65 extern void cpu_detect_cache_sizes(struct cpuinfo_x86 *c);
66 extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c);
67 extern void init_intel_cacheinfo(struct cpuinfo_x86 *c);
68 extern void init_amd_cacheinfo(struct cpuinfo_x86 *c);
69 extern void init_hygon_cacheinfo(struct cpuinfo_x86 *c);
71 extern void detect_num_cpu_cores(struct cpuinfo_x86 *c);
72 extern int detect_extended_topology_early(struct cpuinfo_x86 *c);
73 extern int detect_extended_topology(struct cpuinfo_x86 *c);
74 extern int detect_ht_early(struct cpuinfo_x86 *c);
75 extern void detect_ht(struct cpuinfo_x86 *c);
77 unsigned int aperfmperf_get_khz(int cpu);
79 extern void x86_spec_ctrl_setup_ap(void);
80 extern void update_srbds_msr(void);
82 extern u64 x86_read_arch_cap_msr(void);
84 #ifdef CONFIG_IA32_FEAT_CTL
85 void init_ia32_feat_ctl(struct cpuinfo_x86 *c);
88 #endif /* ARCH_X86_CPU_H */