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_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 #define CPUPOWER_CAP_AMD_RDPRU 0x00000080 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