/* 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 **************************/
int cpufreq_has_generic_boost_support(
bool *active);
int cpupower_set_turbo_boost(
int turbo_boost);
/* 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);
extern int cpupower_set_epp(
unsigned int cpu,
char *epp);
extern int cpupower_set_amd_pstate_mode(
char *mode);
/* 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 **************************/
int cpufreq_has_x86_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; };
static inline int cpupower_set_epp(
unsigned int cpu,
char *epp)
{
return -1; };
static inline int cpupower_set_amd_pstate_mode(
char *mode)
{
return -1; };
/* Read/Write msr ****************************/
static inline int cpufreq_has_x86_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__ */
