1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef ARCH_X86_CPU_H 3 #define ARCH_X86_CPU_H 4 5 /* attempt to consolidate cpu attributes */ 6 struct cpu_dev { 7 const char *c_vendor; 8 9 /* some have two possibilities for cpuid string */ 10 const char *c_ident[2]; 11 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 *); 17 void (*c_bsp_resume)(struct cpuinfo_x86 *); 18 int c_x86_vendor; 19 #ifdef CONFIG_X86_32 20 /* Optional vendor specific routine to obtain the cache size. */ 21 unsigned int (*legacy_cache_size)(struct cpuinfo_x86 *, 22 unsigned int); 23 24 /* Family/stepping-based lookup table for model names. */ 25 struct legacy_cpu_model_info { 26 int family; 27 const char *model_names[16]; 28 } legacy_models[5]; 29 #endif 30 }; 31 32 struct _tlb_table { 33 unsigned char descriptor; 34 char tlb_type; 35 unsigned int entries; 36 /* unsigned int ways; */ 37 char info[128]; 38 }; 39 40 #define cpu_dev_register(cpu_devX) \ 41 static const struct cpu_dev *const __cpu_dev_##cpu_devX __used \ 42 __attribute__((__section__(".x86_cpu_dev.init"))) = \ 43 &cpu_devX; 44 45 extern const struct cpu_dev *const __x86_cpu_dev_start[], 46 *const __x86_cpu_dev_end[]; 47 48 extern void get_cpu_cap(struct cpuinfo_x86 *c); 49 extern void cpu_detect_cache_sizes(struct cpuinfo_x86 *c); 50 extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c); 51 extern u32 get_scattered_cpuid_leaf(unsigned int level, 52 unsigned int sub_leaf, 53 enum cpuid_regs_idx reg); 54 extern void init_intel_cacheinfo(struct cpuinfo_x86 *c); 55 extern void init_amd_cacheinfo(struct cpuinfo_x86 *c); 56 57 extern void detect_num_cpu_cores(struct cpuinfo_x86 *c); 58 extern int detect_extended_topology(struct cpuinfo_x86 *c); 59 extern void detect_ht(struct cpuinfo_x86 *c); 60 61 unsigned int aperfmperf_get_khz(int cpu); 62 63 extern void x86_spec_ctrl_setup_ap(void); 64 65 #endif /* ARCH_X86_CPU_H */ 66