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TOMOYO Linux Cross Reference
Linux/tools/power/cpupower/utils/helpers/helpers.h

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  1 /*
  2  *  (C) 2010,2011       Thomas Renninger <trenn@suse.de>, Novell Inc.
  3  *
  4  *  Licensed under the terms of the GNU GPL License version 2.
  5  *
  6  * Miscellaneous helpers which do not fit or are worth
  7  * to put into separate headers
  8  */
  9 
 10 #ifndef __CPUPOWERUTILS_HELPERS__
 11 #define __CPUPOWERUTILS_HELPERS__
 12 
 13 #include <libintl.h>
 14 #include <locale.h>
 15 
 16 #include "helpers/bitmask.h"
 17 #include <cpupower.h>
 18 
 19 /* Internationalization ****************************/
 20 #ifdef NLS
 21 
 22 #define _(String) gettext(String)
 23 #ifndef gettext_noop
 24 #define gettext_noop(String) String
 25 #endif
 26 #define N_(String) gettext_noop(String)
 27 
 28 #else /* !NLS */
 29 
 30 #define _(String) String
 31 #define N_(String) String
 32 
 33 #endif
 34 /* Internationalization ****************************/
 35 
 36 extern int run_as_root;
 37 extern int base_cpu;
 38 extern struct bitmask *cpus_chosen;
 39 
 40 /* Global verbose (-d) stuff *********************************/
 41 /*
 42  * define DEBUG via global Makefile variable
 43  * Debug output is sent to stderr, do:
 44  * cpupower monitor 2>/tmp/debug
 45  * to split debug output away from normal output
 46 */
 47 #ifdef DEBUG
 48 extern int be_verbose;
 49 
 50 #define dprint(fmt, ...) {                                      \
 51                 if (be_verbose) {                               \
 52                         fprintf(stderr, "%s: " fmt,             \
 53                                 __func__, ##__VA_ARGS__);       \
 54                 }                                               \
 55         }
 56 #else
 57 static inline void dprint(const char *fmt, ...) { }
 58 #endif
 59 extern int be_verbose;
 60 /* Global verbose (-v) stuff *********************************/
 61 
 62 /* cpuid and cpuinfo helpers  **************************/
 63 enum cpupower_cpu_vendor {X86_VENDOR_UNKNOWN = 0, X86_VENDOR_INTEL,
 64                           X86_VENDOR_AMD, X86_VENDOR_HYGON, X86_VENDOR_MAX};
 65 
 66 #define CPUPOWER_CAP_INV_TSC            0x00000001
 67 #define CPUPOWER_CAP_APERF              0x00000002
 68 #define CPUPOWER_CAP_AMD_CBP            0x00000004
 69 #define CPUPOWER_CAP_PERF_BIAS          0x00000008
 70 #define CPUPOWER_CAP_HAS_TURBO_RATIO    0x00000010
 71 #define CPUPOWER_CAP_IS_SNB             0x00000020
 72 #define CPUPOWER_CAP_INTEL_IDA          0x00000040
 73 
 74 #define CPUPOWER_AMD_CPBDIS             0x02000000
 75 
 76 #define MAX_HW_PSTATES 10
 77 
 78 struct cpupower_cpu_info {
 79         enum cpupower_cpu_vendor vendor;
 80         unsigned int family;
 81         unsigned int model;
 82         unsigned int stepping;
 83         /* CPU capabilities read out from cpuid */
 84         unsigned long long caps;
 85 };
 86 
 87 /* get_cpu_info
 88  *
 89  * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo
 90  *
 91  * Returns 0 on success or a negative error code
 92  * Only used on x86, below global's struct values are zero/unknown on
 93  * other archs
 94  */
 95 extern int get_cpu_info(struct cpupower_cpu_info *cpu_info);
 96 extern struct cpupower_cpu_info cpupower_cpu_info;
 97 /* cpuid and cpuinfo helpers  **************************/
 98 
 99 /* X86 ONLY ****************************************/
100 #if defined(__i386__) || defined(__x86_64__)
101 
102 #include <pci/pci.h>
103 
104 /* Read/Write msr ****************************/
105 extern int read_msr(int cpu, unsigned int idx, unsigned long long *val);
106 extern int write_msr(int cpu, unsigned int idx, unsigned long long val);
107 
108 extern int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val);
109 extern int msr_intel_get_perf_bias(unsigned int cpu);
110 extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu);
111 
112 /* Read/Write msr ****************************/
113 
114 /* PCI stuff ****************************/
115 extern int amd_pci_get_num_boost_states(int *active, int *states);
116 extern struct pci_dev *pci_acc_init(struct pci_access **pacc, int domain,
117                                     int bus, int slot, int func, int vendor,
118                                     int dev);
119 extern struct pci_dev *pci_slot_func_init(struct pci_access **pacc,
120                                               int slot, int func);
121 
122 /* PCI stuff ****************************/
123 
124 /* AMD HW pstate decoding **************************/
125 
126 extern int decode_pstates(unsigned int cpu, unsigned int cpu_family,
127                           int boost_states, unsigned long *pstates, int *no);
128 
129 /* AMD HW pstate decoding **************************/
130 
131 extern int cpufreq_has_boost_support(unsigned int cpu, int *support,
132                                      int *active, int * states);
133 /*
134  * CPUID functions returning a single datum
135  */
136 unsigned int cpuid_eax(unsigned int op);
137 unsigned int cpuid_ebx(unsigned int op);
138 unsigned int cpuid_ecx(unsigned int op);
139 unsigned int cpuid_edx(unsigned int op);
140 
141 /* cpuid and cpuinfo helpers  **************************/
142 /* X86 ONLY ********************************************/
143 #else
144 static inline int decode_pstates(unsigned int cpu, unsigned int cpu_family,
145                                  int boost_states, unsigned long *pstates,
146                                  int *no)
147 { return -1; };
148 
149 static inline int read_msr(int cpu, unsigned int idx, unsigned long long *val)
150 { return -1; };
151 static inline int write_msr(int cpu, unsigned int idx, unsigned long long val)
152 { return -1; };
153 static inline int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val)
154 { return -1; };
155 static inline int msr_intel_get_perf_bias(unsigned int cpu)
156 { return -1; };
157 static inline unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu)
158 { return 0; };
159 
160 /* Read/Write msr ****************************/
161 
162 static inline int cpufreq_has_boost_support(unsigned int cpu, int *support,
163                                             int *active, int * states)
164 { return -1; }
165 
166 /* cpuid and cpuinfo helpers  **************************/
167 
168 static inline unsigned int cpuid_eax(unsigned int op) { return 0; };
169 static inline unsigned int cpuid_ebx(unsigned int op) { return 0; };
170 static inline unsigned int cpuid_ecx(unsigned int op) { return 0; };
171 static inline unsigned int cpuid_edx(unsigned int op) { return 0; };
172 #endif /* defined(__i386__) || defined(__x86_64__) */
173 
174 #endif /* __CPUPOWERUTILS_HELPERS__ */
175 

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