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 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_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__ */