aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/oprofile/op_x86_model.h
blob: 45b605fa71d06f6064b7fb6f3d34a017106b3cb9 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
/**
 * @file op_x86_model.h
 * interface to x86 model-specific MSR operations
 *
 * @remark Copyright 2002 OProfile authors
 * @remark Read the file COPYING
 *
 * @author Graydon Hoare
 */

#ifndef OP_X86_MODEL_H
#define OP_X86_MODEL_H

struct op_saved_msr {
	unsigned int high;
	unsigned int low;
};

struct op_msr {
	unsigned long addr;
	struct op_saved_msr saved;
};

struct op_msrs {
	struct op_msr * counters;
	struct op_msr * controls;
};

struct pt_regs;

/* The model vtable abstracts the differences between
 * various x86 CPU models' perfctr support.
 */
struct op_x86_model_spec {
	unsigned int const num_counters;
	unsigned int const num_controls;
	void (*fill_in_addresses)(struct op_msrs * const msrs);
	void (*setup_ctrs)(struct op_msrs const * const msrs);
	int (*check_ctrs)(struct pt_regs * const regs,
		struct op_msrs const * const msrs);
	void (*start)(struct op_msrs const * const msrs);
	void (*stop)(struct op_msrs const * const msrs);
	void (*shutdown)(struct op_msrs const * const msrs);
};

extern struct op_x86_model_spec const op_ppro_spec;
extern struct op_x86_model_spec const op_p4_spec;
extern struct op_x86_model_spec const op_p4_ht2_spec;
extern struct op_x86_model_spec const op_athlon_spec;

#endif /* OP_X86_MODEL_H */