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pfmlib_gen_ia32.h
Go to the documentation of this file.
1 /*
2 * Intel architectural PMU v1, v2, v3
3 *
4 * Copyright (c) 2006-2007 Hewlett-Packard Development Company, L.P.
5 * Contributed by Stephane Eranian <eranian@hpl.hp.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
11 * of the Software, and to permit persons to whom the Software is furnished to do so,
12 * subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in all
15 * copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
18 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
19 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
21 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
22 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24 #ifndef __PFMLIB_GEN_IA32_H__
25 #define __PFMLIB_GEN_IA32_H__
26
27 #include <perfmon/pfmlib.h>
28 /*
29 * privilege level mask usage for architected PMU:
30 *
31 * PFM_PLM0 = OS (kernel, hypervisor, ..)
32 * PFM_PLM1 = unused (ignored)
33 * PFM_PLM2 = unused (ignored)
34 * PFM_PLM3 = USR (user level)
35 */
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 /*
42 * upper limit, actual number determined dynamically
43 */
44 #define PMU_GEN_IA32_MAX_COUNTERS PFMLIB_MAX_PMCS
45
46 /*
47 * Even though, CPUID 0xa returns in eax the actual counter
48 * width, the architecture specifies that writes are limited
49 * to lower 32-bits. As such, only the lower 32-bit have full
50 * degree of freedom. That is the "useable" counter width.
51 */
52 #define PMU_GEN_IA32_COUNTER_WIDTH 32
53
54 typedef union {
55 unsigned long long val; /* complete register value */
56 struct {
57 unsigned long sel_event_select : 8; /* event mask */
58 unsigned long sel_unit_mask : 8; /* unit mask */
59 unsigned long sel_usr : 1; /* user level */
60 unsigned long sel_os : 1; /* system level */
61 unsigned long sel_edge : 1; /* edge detec */
62 unsigned long sel_pc : 1; /* pin control */
63 unsigned long sel_int : 1; /* enable APIC intr */
64 unsigned long sel_any : 1; /* any thread (v3) */
65 unsigned long sel_en : 1; /* enable */
66 unsigned long sel_inv : 1; /* invert counter mask */
67 unsigned long sel_cnt_mask : 8; /* counter mask */
68 unsigned long sel_res2 : 32;
69 } perfevtsel;
70 } pfm_gen_ia32_sel_reg_t;
71
72 typedef struct {
73 unsigned long cnt_mask; /* threshold (cnt_mask) */
74 unsigned int flags; /* counter specific flag */
75 } pfmlib_gen_ia32_counter_t;
76
77 #define PFM_GEN_IA32_SEL_INV 0x1 /* inverse */
78 #define PFM_GEN_IA32_SEL_EDGE 0x2 /* edge detect */
79 #define PFM_GEN_IA32_SEL_ANYTHR 0x4 /* measure on any thread (v3 and up) */
80
81 /*
82 * model-specific parameters for the library
83 */
84 typedef struct {
85 pfmlib_gen_ia32_counter_t pfp_gen_ia32_counters[PMU_GEN_IA32_MAX_COUNTERS];
86 uint64_t reserved[4]; /* for future use */
87 } pfmlib_gen_ia32_input_param_t;
88
89 typedef struct {
90 uint64_t reserved[8]; /* for future use */
91 } pfmlib_gen_ia32_output_param_t;
92
93 #ifdef __cplusplus /* extern C */
94 }
95 #endif
96
97 #endif /* __PFMLIB_GEN_IA32_H__ */
PMU_GEN_IA32_MAX_COUNTERS
#define PMU_GEN_IA32_MAX_COUNTERS
Definition: pfmlib_gen_ia32.h:44
pfmlib_gen_ia32_output_param_t
Definition: pfmlib_gen_ia32.h:89
uint64_t
unsigned long long uint64_t
Definition: instrset.h:143
pfmlib.h
pfmlib_gen_ia32_counter_t::flags
unsigned int flags
Definition: pfmlib_gen_ia32.h:74
pfmlib_gen_ia32_counter_t
Definition: pfmlib_gen_ia32.h:72
pfm_gen_ia32_sel_reg_t
Definition: pfmlib_gen_ia32.h:54
pfm_gen_ia32_sel_reg_t::val
unsigned long long val
Definition: pfmlib_gen_ia32.h:55
pfmlib_gen_ia32_input_param_t
Definition: pfmlib_gen_ia32.h:84
pfmlib_gen_ia32_counter_t::cnt_mask
unsigned long cnt_mask
Definition: pfmlib_gen_ia32.h:73