arch/x86/kernel/cpu/cpu.h

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This source file includes following definitions.
tsx_init
   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         int             c_x86_vendor;
  18 #ifdef CONFIG_X86_32
  19         /* Optional vendor specific routine to obtain the cache size. */
  20         unsigned int    (*legacy_cache_size)(struct cpuinfo_x86 *,
  21                                              unsigned int);
  22 
  23         /* Family/stepping-based lookup table for model names. */
  24         struct legacy_cpu_model_info {
  25                 int             family;
  26                 const char      *model_names[16];
  27         }               legacy_models[5];
  28 #endif
  29 };
  30 
  31 struct _tlb_table {
  32         unsigned char descriptor;
  33         char tlb_type;
  34         unsigned int entries;
  35         /* unsigned int ways; */
  36         char info[128];
  37 };
  38 
  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"))) = \
  42         &cpu_devX;
  43 
  44 extern const struct cpu_dev *const __x86_cpu_dev_start[],
  45                             *const __x86_cpu_dev_end[];
  46 
  47 #ifdef CONFIG_CPU_SUP_INTEL
  48 enum tsx_ctrl_states {
  49         TSX_CTRL_ENABLE,
  50         TSX_CTRL_DISABLE,
  51         TSX_CTRL_NOT_SUPPORTED,
  52 };
  53 
  54 extern __ro_after_init enum tsx_ctrl_states tsx_ctrl_state;
  55 
  56 extern void __init tsx_init(void);
  57 extern void tsx_enable(void);
  58 extern void tsx_disable(void);
  59 #else
  60 static inline void tsx_init(void) { }
  61 #endif /* CONFIG_CPU_SUP_INTEL */
  62 
  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);
  70 
  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);
  76 
  77 unsigned int aperfmperf_get_khz(int cpu);
  78 
  79 extern void x86_spec_ctrl_setup_ap(void);
  80 extern void update_srbds_msr(void);
  81 
  82 extern u64 x86_read_arch_cap_msr(void);
  83 
  84 #endif /* ARCH_X86_CPU_H */
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root/arch/x86/kernel/cpu/cpu.h

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