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192.168.1.100 / T108 / e958203796650e3959a43708d67534bf36f4c83b / . / marvell / linux / tools / power / cpupower / utils / helpers / helpers.h
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b.liue9582032025-04-17 19:18:16 +0800[diff] [blame^]1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc.
4 *
5 * Miscellaneous helpers which do not fit or are worth
6 * to put into separate headers
7 */
8
9#ifndef __CPUPOWERUTILS_HELPERS__
10#define __CPUPOWERUTILS_HELPERS__
11
12#include <libintl.h>
13#include <locale.h>
14
15#include "helpers/bitmask.h"
16#include <cpupower.h>
17
18/* Internationalization ****************************/
19#ifdef NLS
20
21#define _(String) gettext(String)
22#ifndef gettext_noop
23#define gettext_noop(String) String
24#endif
25#define N_(String) gettext_noop(String)
26
27#else /* !NLS */
28
29#define _(String) String
30#define N_(String) String
31
32#endif
33/* Internationalization ****************************/
34
35extern int run_as_root;
36extern int base_cpu;
37extern struct bitmask *cpus_chosen;
38
39/* Global verbose (-d) stuff *********************************/
40/*
41 * define DEBUG via global Makefile variable
42 * Debug output is sent to stderr, do:
43 * cpupower monitor 2>/tmp/debug
44 * to split debug output away from normal output
45*/
46#ifdef DEBUG
47extern int be_verbose;
48
49#define dprint(fmt, ...) { \
50 if (be_verbose) { \
51 fprintf(stderr, "%s: " fmt, \
52 __func__, ##__VA_ARGS__); \
53 } \
54 }
55#else
56static inline void dprint(const char *fmt, ...) { }
57#endif
58extern int be_verbose;
59/* Global verbose (-v) stuff *********************************/
60
61/* cpuid and cpuinfo helpers **************************/
62enum cpupower_cpu_vendor {X86_VENDOR_UNKNOWN = 0, X86_VENDOR_INTEL,
63 X86_VENDOR_AMD, X86_VENDOR_HYGON, X86_VENDOR_MAX};
64
65#define CPUPOWER_CAP_INV_TSC 0x00000001
66#define CPUPOWER_CAP_APERF 0x00000002
67#define CPUPOWER_CAP_AMD_CBP 0x00000004
68#define CPUPOWER_CAP_PERF_BIAS 0x00000008
69#define CPUPOWER_CAP_HAS_TURBO_RATIO 0x00000010
70#define CPUPOWER_CAP_IS_SNB 0x00000020
71#define CPUPOWER_CAP_INTEL_IDA 0x00000040
72
73#define CPUPOWER_AMD_CPBDIS 0x02000000
74
75#define MAX_HW_PSTATES 10
76
77struct cpupower_cpu_info {
78 enum cpupower_cpu_vendor vendor;
79 unsigned int family;
80 unsigned int model;
81 unsigned int stepping;
82 /* CPU capabilities read out from cpuid */
83 unsigned long long caps;
84};
85
86/* get_cpu_info
87 *
88 * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo
89 *
90 * Returns 0 on success or a negative error code
91 * Only used on x86, below global's struct values are zero/unknown on
92 * other archs
93 */
94extern int get_cpu_info(struct cpupower_cpu_info *cpu_info);
95extern struct cpupower_cpu_info cpupower_cpu_info;
96/* cpuid and cpuinfo helpers **************************/
97
98/* X86 ONLY ****************************************/
99#if defined(__i386__) || defined(__x86_64__)
100
101#include <pci/pci.h>
102
103/* Read/Write msr ****************************/
104extern int read_msr(int cpu, unsigned int idx, unsigned long long *val);
105extern int write_msr(int cpu, unsigned int idx, unsigned long long val);
106
107extern int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val);
108extern int msr_intel_get_perf_bias(unsigned int cpu);
109extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu);
110
111/* Read/Write msr ****************************/
112
113/* PCI stuff ****************************/
114extern int amd_pci_get_num_boost_states(int *active, int *states);
115extern struct pci_dev *pci_acc_init(struct pci_access **pacc, int domain,
116 int bus, int slot, int func, int vendor,
117 int dev);
118extern struct pci_dev *pci_slot_func_init(struct pci_access **pacc,
119 int slot, int func);
120
121/* PCI stuff ****************************/
122
123/* AMD HW pstate decoding **************************/
124
125extern int decode_pstates(unsigned int cpu, unsigned int cpu_family,
126 int boost_states, unsigned long *pstates, int *no);
127
128/* AMD HW pstate decoding **************************/
129
130extern int cpufreq_has_boost_support(unsigned int cpu, int *support,
131 int *active, int * states);
132/*
133 * CPUID functions returning a single datum
134 */
135unsigned int cpuid_eax(unsigned int op);
136unsigned int cpuid_ebx(unsigned int op);
137unsigned int cpuid_ecx(unsigned int op);
138unsigned int cpuid_edx(unsigned int op);
139
140/* cpuid and cpuinfo helpers **************************/
141/* X86 ONLY ********************************************/
142#else
143static inline int decode_pstates(unsigned int cpu, unsigned int cpu_family,
144 int boost_states, unsigned long *pstates,
145 int *no)
146{ return -1; };
147
148static inline int read_msr(int cpu, unsigned int idx, unsigned long long *val)
149{ return -1; };
150static inline int write_msr(int cpu, unsigned int idx, unsigned long long val)
151{ return -1; };
152static inline int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val)
153{ return -1; };
154static inline int msr_intel_get_perf_bias(unsigned int cpu)
155{ return -1; };
156static inline unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu)
157{ return 0; };
158
159/* Read/Write msr ****************************/
160
161static inline int cpufreq_has_boost_support(unsigned int cpu, int *support,
162 int *active, int * states)
163{ return -1; }
164
165/* cpuid and cpuinfo helpers **************************/
166
167static inline unsigned int cpuid_eax(unsigned int op) { return 0; };
168static inline unsigned int cpuid_ebx(unsigned int op) { return 0; };
169static inline unsigned int cpuid_ecx(unsigned int op) { return 0; };
170static inline unsigned int cpuid_edx(unsigned int op) { return 0; };
171#endif /* defined(__i386__) || defined(__x86_64__) */
172
173#endif /* __CPUPOWERUTILS_HELPERS__ */