pmc_mdep.h revision 233628 
1255370Sloos/*-
2255370Sloos * This file is in the public domain.
3255370Sloos *
4255370Sloos *	from: src/sys/alpha/include/pmc_mdep.h,v 1.2 2005/06/09 19:45:06 jkoshy
5255370Sloos * $FreeBSD: head/sys/mips/include/pmc_mdep.h 233628 2012-03-28 20:58:30Z fabient $
6255370Sloos */
7255370Sloos
8255370Sloos#ifndef _MACHINE_PMC_MDEP_H_
9255370Sloos#define	_MACHINE_PMC_MDEP_H_
10255370Sloos
11255370Sloos#define	PMC_MDEP_CLASS_INDEX_MIPS	1
12255370Sloos
13255370Sloosunion pmc_md_op_pmcallocate {
14255370Sloos	uint64_t	__pad[4];
15255370Sloos};
16255370Sloos
17255370Sloos/* Logging */
18255370Sloos#if defined(__mips_n64)
19255370Sloos#define	PMCLOG_READADDR		PMCLOG_READ64
20255370Sloos#define	PMCLOG_EMITADDR		PMCLOG_EMIT64
21255370Sloos#else
22255370Sloos#define	PMCLOG_READADDR		PMCLOG_READ32
23255370Sloos#define	PMCLOG_EMITADDR		PMCLOG_EMIT32
24255370Sloos#endif
25255370Sloos
26255370Sloos#if	_KERNEL
27255370Sloos
28255370Sloos/*
29255370Sloos * MIPS event codes are encoded with a select bit.  The
30255370Sloos * select bit is used when writing to CP0 so that we
31255370Sloos * can select either counter 0/2 or 1/3.  The cycle
32255370Sloos * and instruction counters are special in that they
33255370Sloos * can be counted on either 0/2 or 1/3.
34255370Sloos */
35255370Sloos
36255370Sloos#define MIPS_CTR_ALL	255 /* Count events in any counter. */
37255370Sloos#define MIPS_CTR_0	0 /* Counter 0 Event */
38255370Sloos#define MIPS_CTR_1	1 /* Counter 1 Event */
39255370Sloos
40255370Sloosstruct mips_event_code_map {
41255370Sloos	uint32_t	pe_ev;       /* enum value */
42255370Sloos	uint8_t         pe_counter;  /* Which counter this can be counted in. */
43255370Sloos	uint8_t		pe_code;     /* numeric code */
44255370Sloos};
45
46struct mips_pmc_spec {
47	uint32_t	ps_cpuclass;
48	uint32_t	ps_cputype;
49	uint32_t	ps_capabilities;
50	int		ps_counter_width;
51};
52
53union pmc_md_pmc {
54	uint32_t	pm_mips_evsel;
55};
56
57#define	PMC_TRAPFRAME_TO_PC(TF)	((TF)->pc)
58
59extern const struct mips_event_code_map mips_event_codes[];
60extern const int mips_event_codes_size;
61extern int mips_npmcs;
62extern struct mips_pmc_spec mips_pmc_spec;
63
64/*
65 * Prototypes
66 */
67struct pmc_mdep *pmc_mips_initialize(void);
68void		pmc_mips_finalize(struct pmc_mdep *_md);
69
70/*
71 * CPU-specific functions
72 */
73
74uint32_t	mips_get_perfctl(int cpu, int ri, uint32_t event, uint32_t caps);
75uint64_t	mips_pmcn_read(unsigned int pmc);
76uint64_t	mips_pmcn_write(unsigned int pmc, uint64_t v);
77
78#endif /* _KERNEL */
79
80#endif /* !_MACHINE_PMC_MDEP_H_ */
81