xref: /openbmc/linux/arch/x86/kernel/cpu/cpu.h (revision c819e2cf)
1 #ifndef ARCH_X86_CPU_H
2 #define ARCH_X86_CPU_H
3 
4 /* attempt to consolidate cpu attributes */
5 struct cpu_dev {
6 	const char	*c_vendor;
7 
8 	/* some have two possibilities for cpuid string */
9 	const char	*c_ident[2];
10 
11 	void            (*c_early_init)(struct cpuinfo_x86 *);
12 	void		(*c_bsp_init)(struct cpuinfo_x86 *);
13 	void		(*c_init)(struct cpuinfo_x86 *);
14 	void		(*c_identify)(struct cpuinfo_x86 *);
15 	void		(*c_detect_tlb)(struct cpuinfo_x86 *);
16 	int		c_x86_vendor;
17 #ifdef CONFIG_X86_32
18 	/* Optional vendor specific routine to obtain the cache size. */
19 	unsigned int	(*legacy_cache_size)(struct cpuinfo_x86 *,
20 					     unsigned int);
21 
22 	/* Family/stepping-based lookup table for model names. */
23 	struct legacy_cpu_model_info {
24 		int		family;
25 		const char	*model_names[16];
26 	}		legacy_models[5];
27 #endif
28 };
29 
30 struct _tlb_table {
31 	unsigned char descriptor;
32 	char tlb_type;
33 	unsigned int entries;
34 	/* unsigned int ways; */
35 	char info[128];
36 };
37 
38 #define cpu_dev_register(cpu_devX) \
39 	static const struct cpu_dev *const __cpu_dev_##cpu_devX __used \
40 	__attribute__((__section__(".x86_cpu_dev.init"))) = \
41 	&cpu_devX;
42 
43 extern const struct cpu_dev *const __x86_cpu_dev_start[],
44 			    *const __x86_cpu_dev_end[];
45 
46 extern void get_cpu_cap(struct cpuinfo_x86 *c);
47 extern void cpu_detect_cache_sizes(struct cpuinfo_x86 *c);
48 #endif /* ARCH_X86_CPU_H */
49