1 /*-
2 * This file is in the public domain.
3 *
4 * from: src/sys/alpha/include/pmc_mdep.h,v 1.2 2005/06/09 19:45:06 jkoshy
5 * $FreeBSD$
6 */
7
8 #ifndef _MACHINE_PMC_MDEP_H_
9 #define _MACHINE_PMC_MDEP_H_
10
11 #define PMC_MDEP_CLASS_INDEX_MIPS 1
12
13 union pmc_md_op_pmcallocate {
14 uint64_t __pad[4];
15 };
16
17 /* Logging */
18 #if defined(__mips_n64)
19 #define PMCLOG_READADDR PMCLOG_READ64
20 #define PMCLOG_EMITADDR PMCLOG_EMIT64
21 #else
22 #define PMCLOG_READADDR PMCLOG_READ32
23 #define PMCLOG_EMITADDR PMCLOG_EMIT32
24 #endif
25
26 #if _KERNEL
27
28 /*
29 * MIPS event codes are encoded with a select bit. The
30 * select bit is used when writing to CP0 so that we
31 * can select either counter 0/2 or 1/3. The cycle
32 * and instruction counters are special in that they
33 * can be counted on either 0/2 or 1/3.
34 */
35
36 #define MIPS_CTR_ALL 255 /* Count events in any counter. */
37 #define MIPS_CTR_0 0 /* Counter 0 Event */
38 #define MIPS_CTR_1 1 /* Counter 1 Event */
39
40 struct mips_event_code_map {
41 uint32_t pe_ev; /* enum value */
42 uint8_t pe_counter; /* Which counter this can be counted in. */
43 uint8_t pe_code; /* numeric code */
44 };
45
46 struct 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
53 union pmc_md_pmc {
54 uint32_t pm_mips_evsel;
55 };
56
57 #define PMC_TRAPFRAME_TO_PC(TF) ((TF)->pc)
58
59 extern const struct mips_event_code_map mips_event_codes[];
60 extern const int mips_event_codes_size;
61 extern int mips_npmcs;
62 extern struct mips_pmc_spec mips_pmc_spec;
63
64 /*
65 * Prototypes
66 */
67 struct pmc_mdep *pmc_mips_initialize(void);
68 void pmc_mips_finalize(struct pmc_mdep *_md);
69
70 /*
71 * CPU-specific functions
72 */
73
74 uint32_t mips_get_perfctl(int cpu, int ri, uint32_t event, uint32_t caps);
75 uint64_t mips_pmcn_read(unsigned int pmc);
76 uint64_t mips_pmcn_write(unsigned int pmc, uint64_t v);
77
78 #endif /* _KERNEL */
79
80 #endif /* !_MACHINE_PMC_MDEP_H_ */
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