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__ */ 172