| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. |
| * |
| * Miscellaneous helpers which do not fit or are worth |
| * to put into separate headers |
| */ |
| |
| #ifndef __CPUPOWERUTILS_HELPERS__ |
| #define __CPUPOWERUTILS_HELPERS__ |
| |
| #include <libintl.h> |
| #include <locale.h> |
| #include <stdbool.h> |
| |
| #include "helpers/bitmask.h" |
| #include <cpupower.h> |
| |
| /* Internationalization ****************************/ |
| #ifdef NLS |
| |
| #define _(String) gettext(String) |
| #ifndef gettext_noop |
| #define gettext_noop(String) String |
| #endif |
| #define N_(String) gettext_noop(String) |
| |
| #else /* !NLS */ |
| |
| #define _(String) String |
| #define N_(String) String |
| |
| #endif |
| /* Internationalization ****************************/ |
| |
| extern int run_as_root; |
| extern int base_cpu; |
| extern struct bitmask *cpus_chosen; |
| |
| /* Global verbose (-d) stuff *********************************/ |
| /* |
| * define DEBUG via global Makefile variable |
| * Debug output is sent to stderr, do: |
| * cpupower monitor 2>/tmp/debug |
| * to split debug output away from normal output |
| */ |
| #ifdef DEBUG |
| extern int be_verbose; |
| |
| #define dprint(fmt, ...) { \ |
| if (be_verbose) { \ |
| fprintf(stderr, "%s: " fmt, \ |
| __func__, ##__VA_ARGS__); \ |
| } \ |
| } |
| #else |
| static inline void dprint(const char *fmt, ...) { } |
| #endif |
| extern int be_verbose; |
| /* Global verbose (-v) stuff *********************************/ |
| |
| /* cpuid and cpuinfo helpers **************************/ |
| enum cpupower_cpu_vendor {X86_VENDOR_UNKNOWN = 0, X86_VENDOR_INTEL, |
| X86_VENDOR_AMD, X86_VENDOR_HYGON, X86_VENDOR_MAX}; |
| |
| #define CPUPOWER_CAP_INV_TSC 0x00000001 |
| #define CPUPOWER_CAP_APERF 0x00000002 |
| #define CPUPOWER_CAP_AMD_CPB 0x00000004 |
| #define CPUPOWER_CAP_PERF_BIAS 0x00000008 |
| #define CPUPOWER_CAP_HAS_TURBO_RATIO 0x00000010 |
| #define CPUPOWER_CAP_IS_SNB 0x00000020 |
| #define CPUPOWER_CAP_INTEL_IDA 0x00000040 |
| #define CPUPOWER_CAP_AMD_RDPRU 0x00000080 |
| #define CPUPOWER_CAP_AMD_HW_PSTATE 0x00000100 |
| #define CPUPOWER_CAP_AMD_PSTATEDEF 0x00000200 |
| #define CPUPOWER_CAP_AMD_CPB_MSR 0x00000400 |
| #define CPUPOWER_CAP_AMD_PSTATE 0x00000800 |
| |
| #define CPUPOWER_AMD_CPBDIS 0x02000000 |
| |
| #define MAX_HW_PSTATES 10 |
| |
| struct cpupower_cpu_info { |
| enum cpupower_cpu_vendor vendor; |
| unsigned int family; |
| unsigned int model; |
| unsigned int stepping; |
| /* CPU capabilities read out from cpuid */ |
| unsigned long long caps; |
| }; |
| |
| /* get_cpu_info |
| * |
| * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo |
| * |
| * Returns 0 on success or a negative error code |
| * Only used on x86, below global's struct values are zero/unknown on |
| * other archs |
| */ |
| extern int get_cpu_info(struct cpupower_cpu_info *cpu_info); |
| extern struct cpupower_cpu_info cpupower_cpu_info; |
| |
| |
| /* cpuid and cpuinfo helpers **************************/ |
| |
| /* X86 ONLY ****************************************/ |
| #if defined(__i386__) || defined(__x86_64__) |
| |
| #include <pci/pci.h> |
| |
| /* Read/Write msr ****************************/ |
| extern int read_msr(int cpu, unsigned int idx, unsigned long long *val); |
| extern int write_msr(int cpu, unsigned int idx, unsigned long long val); |
| |
| extern int cpupower_intel_set_perf_bias(unsigned int cpu, unsigned int val); |
| extern int cpupower_intel_get_perf_bias(unsigned int cpu); |
| extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu); |
| |
| /* Read/Write msr ****************************/ |
| |
| /* PCI stuff ****************************/ |
| extern int amd_pci_get_num_boost_states(int *active, int *states); |
| extern struct pci_dev *pci_acc_init(struct pci_access **pacc, int domain, |
| int bus, int slot, int func, int vendor, |
| int dev); |
| extern struct pci_dev *pci_slot_func_init(struct pci_access **pacc, |
| int slot, int func); |
| |
| /* PCI stuff ****************************/ |
| |
| /* AMD HW pstate decoding **************************/ |
| |
| extern int decode_pstates(unsigned int cpu, int boost_states, |
| unsigned long *pstates, int *no); |
| |
| /* AMD HW pstate decoding **************************/ |
| |
| extern int cpufreq_has_boost_support(unsigned int cpu, int *support, |
| int *active, int * states); |
| |
| /* AMD P-State stuff **************************/ |
| bool cpupower_amd_pstate_enabled(void); |
| void amd_pstate_boost_init(unsigned int cpu, |
| int *support, int *active); |
| void amd_pstate_show_perf_and_freq(unsigned int cpu, |
| int no_rounding); |
| |
| /* AMD P-State stuff **************************/ |
| |
| /* |
| * CPUID functions returning a single datum |
| */ |
| unsigned int cpuid_eax(unsigned int op); |
| unsigned int cpuid_ebx(unsigned int op); |
| unsigned int cpuid_ecx(unsigned int op); |
| unsigned int cpuid_edx(unsigned int op); |
| |
| /* cpuid and cpuinfo helpers **************************/ |
| /* X86 ONLY ********************************************/ |
| #else |
| static inline int decode_pstates(unsigned int cpu, int boost_states, |
| unsigned long *pstates, int *no) |
| { return -1; }; |
| |
| static inline int read_msr(int cpu, unsigned int idx, unsigned long long *val) |
| { return -1; }; |
| static inline int write_msr(int cpu, unsigned int idx, unsigned long long val) |
| { return -1; }; |
| static inline int cpupower_intel_set_perf_bias(unsigned int cpu, unsigned int val) |
| { return -1; }; |
| static inline int cpupower_intel_get_perf_bias(unsigned int cpu) |
| { return -1; }; |
| static inline unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu) |
| { return 0; }; |
| |
| /* Read/Write msr ****************************/ |
| |
| static inline int cpufreq_has_boost_support(unsigned int cpu, int *support, |
| int *active, int * states) |
| { return -1; } |
| |
| static inline bool cpupower_amd_pstate_enabled(void) |
| { return false; } |
| static inline void amd_pstate_boost_init(unsigned int cpu, int *support, |
| int *active) |
| {} |
| static inline void amd_pstate_show_perf_and_freq(unsigned int cpu, |
| int no_rounding) |
| {} |
| |
| /* cpuid and cpuinfo helpers **************************/ |
| |
| static inline unsigned int cpuid_eax(unsigned int op) { return 0; }; |
| static inline unsigned int cpuid_ebx(unsigned int op) { return 0; }; |
| static inline unsigned int cpuid_ecx(unsigned int op) { return 0; }; |
| static inline unsigned int cpuid_edx(unsigned int op) { return 0; }; |
| #endif /* defined(__i386__) || defined(__x86_64__) */ |
| |
| /* |
| * CPU State related functions |
| */ |
| extern struct bitmask *online_cpus; |
| extern struct bitmask *offline_cpus; |
| |
| void get_cpustate(void); |
| void print_online_cpus(void); |
| void print_offline_cpus(void); |
| void print_speed(unsigned long speed, int no_rounding); |
| |
| #endif /* __CPUPOWERUTILS_HELPERS__ */ |
