xref: /openbmc/linux/arch/x86/kernel/cpu/cpu.h (revision b802fb99)
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 	void		(*c_bsp_resume)(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 extern void get_cpu_cap(struct cpuinfo_x86 *c);
48 extern void cpu_detect_cache_sizes(struct cpuinfo_x86 *c);
49 #endif /* ARCH_X86_CPU_H */
50