tools/power/cpupower/utils/helpers/helpers.h

   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 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
  47 extern 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
  56 static inline void dprint(const char *fmt, ...) { }
  57 #endif
  58 extern int be_verbose;
  59 /* Global verbose (-v) stuff *********************************/
  60
  61 /* cpuid and cpuinfo helpers  **************************/
  62 enum cpupower_cpu_vendor {X86_VENDOR_UNKNOWN = 0, X86_VENDOR_INTEL,
  63                           X86_VENDOR_AMD, 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 MAX_HW_PSTATES 10
  74
  75 struct cpupower_cpu_info {
  76         enum cpupower_cpu_vendor vendor;
  77         unsigned int family;
  78         unsigned int model;
  79         unsigned int stepping;
  80         /* CPU capabilities read out from cpuid */
  81         unsigned long long caps;
  82 };
  83
  84 /* get_cpu_info
  85  *
  86  * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo
  87  *
  88  * Returns 0 on success or a negativ error code
  89  * Only used on x86, below global's struct values are zero/unknown on
  90  * other archs
  91  */
  92 extern int get_cpu_info(unsigned int cpu, struct cpupower_cpu_info *cpu_info);
  93 extern struct cpupower_cpu_info cpupower_cpu_info;
  94 /* cpuid and cpuinfo helpers  **************************/
  95
  96 /* X86 ONLY ****************************************/
  97 #if defined(__i386__) || defined(__x86_64__)
  98
  99 #include <pci/pci.h>
 100
 101 /* Read/Write msr ****************************/
 102 extern int read_msr(int cpu, unsigned int idx, unsigned long long *val);
 103 extern int write_msr(int cpu, unsigned int idx, unsigned long long val);
 104
 105 extern int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val);
 106 extern int msr_intel_get_perf_bias(unsigned int cpu);
 107 extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu);
 108
 109 /* Read/Write msr ****************************/
 110
 111 /* PCI stuff ****************************/
 112 extern int amd_pci_get_num_boost_states(int *active, int *states);
 113 extern struct pci_dev *pci_acc_init(struct pci_access **pacc, int domain,
 114                                     int bus, int slot, int func, int vendor,
 115                                     int dev);
 116 extern struct pci_dev *pci_slot_func_init(struct pci_access **pacc,
 117                                               int slot, int func);
 118
 119 /* PCI stuff ****************************/
 120
 121 /* AMD HW pstate decoding **************************/
 122
 123 extern int decode_pstates(unsigned int cpu, unsigned int cpu_family,
 124                           int boost_states, unsigned long *pstates, int *no);
 125
 126 /* AMD HW pstate decoding **************************/
 127
 128 extern int cpufreq_has_boost_support(unsigned int cpu, int *support,
 129                                      int *active, int * states);
 130 /*
 131  * CPUID functions returning a single datum
 132  */
 133 unsigned int cpuid_eax(unsigned int op);
 134 unsigned int cpuid_ebx(unsigned int op);
 135 unsigned int cpuid_ecx(unsigned int op);
 136 unsigned int cpuid_edx(unsigned int op);
 137
 138 /* cpuid and cpuinfo helpers  **************************/
 139 /* X86 ONLY ********************************************/
 140 #else
 141 static inline int decode_pstates(unsigned int cpu, unsigned int cpu_family,
 142                                  int boost_states, unsigned long *pstates,
 143                                  int *no)
 144 { return -1; };
 145
 146 static inline int read_msr(int cpu, unsigned int idx, unsigned long long *val)
 147 { return -1; };
 148 static inline int write_msr(int cpu, unsigned int idx, unsigned long long val)
 149 { return -1; };
 150 static inline int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val)
 151 { return -1; };
 152 static inline int msr_intel_get_perf_bias(unsigned int cpu)
 153 { return -1; };
 154 static inline unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu)
 155 { return 0; };
 156
 157 /* Read/Write msr ****************************/
 158
 159 static inline int cpufreq_has_boost_support(unsigned int cpu, int *support,
 160                                             int *active, int * states)
 161 { return -1; }
 162
 163 /* cpuid and cpuinfo helpers  **************************/
 164
 165 static inline unsigned int cpuid_eax(unsigned int op) { return 0; };
 166 static inline unsigned int cpuid_ebx(unsigned int op) { return 0; };
 167 static inline unsigned int cpuid_ecx(unsigned int op) { return 0; };
 168 static inline unsigned int cpuid_edx(unsigned int op) { return 0; };
 169 #endif /* defined(__i386__) || defined(__x86_64__) */
 170
 171 #endif /* __CPUPOWERUTILS_HELPERS__ */