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 35 extern int run_as_root; 36 extern int base_cpu; 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_HYGON, X86_VENDOR_MAX}; 64 65 #define CPUPOWER_CAP_INV_TSC 0x00000001 66 #define CPUPOWER_CAP_APERF 0x00000002 67 #define CPUPOWER_CAP_AMD_CPB 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 #define CPUPOWER_CAP_AMD_RDPRU 0x00000080 73 #define CPUPOWER_CAP_AMD_HW_PSTATE 0x00000100 74 #define CPUPOWER_CAP_AMD_PSTATEDEF 0x00000200 75 #define CPUPOWER_CAP_AMD_CPB_MSR 0x00000400 76 77 #define CPUPOWER_AMD_CPBDIS 0x02000000 78 79 #define MAX_HW_PSTATES 10 80 81 struct cpupower_cpu_info { 82 enum cpupower_cpu_vendor vendor; 83 unsigned int family; 84 unsigned int model; 85 unsigned int stepping; 86 /* CPU capabilities read out from cpuid */ 87 unsigned long long caps; 88 }; 89 90 /* get_cpu_info 91 * 92 * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo 93 * 94 * Returns 0 on success or a negative error code 95 * Only used on x86, below global's struct values are zero/unknown on 96 * other archs 97 */ 98 extern int get_cpu_info(struct cpupower_cpu_info *cpu_info); 99 extern struct cpupower_cpu_info cpupower_cpu_info; 100 101 102 /* cpuid and cpuinfo helpers **************************/ 103 104 /* X86 ONLY ****************************************/ 105 #if defined(__i386__) || defined(__x86_64__) 106 107 #include <pci/pci.h> 108 109 /* Read/Write msr ****************************/ 110 extern int read_msr(int cpu, unsigned int idx, unsigned long long *val); 111 extern int write_msr(int cpu, unsigned int idx, unsigned long long val); 112 113 extern int cpupower_intel_set_perf_bias(unsigned int cpu, unsigned int val); 114 extern int cpupower_intel_get_perf_bias(unsigned int cpu); 115 extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu); 116 117 /* Read/Write msr ****************************/ 118 119 /* PCI stuff ****************************/ 120 extern int amd_pci_get_num_boost_states(int *active, int *states); 121 extern struct pci_dev *pci_acc_init(struct pci_access **pacc, int domain, 122 int bus, int slot, int func, int vendor, 123 int dev); 124 extern struct pci_dev *pci_slot_func_init(struct pci_access **pacc, 125 int slot, int func); 126 127 /* PCI stuff ****************************/ 128 129 /* AMD HW pstate decoding **************************/ 130 131 extern int decode_pstates(unsigned int cpu, int boost_states, 132 unsigned long *pstates, int *no); 133 134 /* AMD HW pstate decoding **************************/ 135 136 extern int cpufreq_has_boost_support(unsigned int cpu, int *support, 137 int *active, int * states); 138 /* 139 * CPUID functions returning a single datum 140 */ 141 unsigned int cpuid_eax(unsigned int op); 142 unsigned int cpuid_ebx(unsigned int op); 143 unsigned int cpuid_ecx(unsigned int op); 144 unsigned int cpuid_edx(unsigned int op); 145 146 /* cpuid and cpuinfo helpers **************************/ 147 /* X86 ONLY ********************************************/ 148 #else 149 static inline int decode_pstates(unsigned int cpu, int boost_states, 150 unsigned long *pstates, int *no) 151 { return -1; }; 152 153 static inline int read_msr(int cpu, unsigned int idx, unsigned long long *val) 154 { return -1; }; 155 static inline int write_msr(int cpu, unsigned int idx, unsigned long long val) 156 { return -1; }; 157 static inline int cpupower_intel_set_perf_bias(unsigned int cpu, unsigned int val) 158 { return -1; }; 159 static inline int cpupower_intel_get_perf_bias(unsigned int cpu) 160 { return -1; }; 161 static inline unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu) 162 { return 0; }; 163 164 /* Read/Write msr ****************************/ 165 166 static inline int cpufreq_has_boost_support(unsigned int cpu, int *support, 167 int *active, int * states) 168 { return -1; } 169 170 /* cpuid and cpuinfo helpers **************************/ 171 172 static inline unsigned int cpuid_eax(unsigned int op) { return 0; }; 173 static inline unsigned int cpuid_ebx(unsigned int op) { return 0; }; 174 static inline unsigned int cpuid_ecx(unsigned int op) { return 0; }; 175 static inline unsigned int cpuid_edx(unsigned int op) { return 0; }; 176 #endif /* defined(__i386__) || defined(__x86_64__) */ 177 178 /* 179 * CPU State related functions 180 */ 181 extern struct bitmask *online_cpus; 182 extern struct bitmask *offline_cpus; 183 184 void get_cpustate(void); 185 void print_online_cpus(void); 186 void print_offline_cpus(void); 187 188 #endif /* __CPUPOWERUTILS_HELPERS__ */ 189