mirror of
https://github.com/anrieff/libcpuid
synced 2024-12-16 16:35:45 +00:00
Move code from cpu_msrinfo() in subfunctions
This commit is contained in:
Xorg
parent
86cf1df62c
commit
77575736dd
1 changed files with 108 additions and 87 deletions
195
libcpuid/rdmsr.c
195
libcpuid/rdmsr.c
|
|
@ -485,18 +485,115 @@ static int perfmsr_measure(struct msr_driver_t* handle, int msr)
|
|||
return (int) ((y - x) / (b - a));
|
||||
}
|
||||
|
||||
#ifndef MSRINFO_DEFINED
|
||||
static double get_info_cur_multiplier(struct msr_driver_t* handle)
|
||||
{
|
||||
int err, cur_clock;
|
||||
uint64_t r;
|
||||
static double bclk = 0.0;
|
||||
|
||||
#define IA32_THERM_STATUS 0x19C
|
||||
#define IA32_TEMPERATURE_TARGET 0x1a2
|
||||
#define IA32_PACKAGE_THERM_STATUS 0x1b1
|
||||
#define MSR_PERF_STATUS 0x198
|
||||
#define MSR_TURBO_RATIO_LIMIT 429
|
||||
if(cpuid_get_vendor() == VENDOR_INTEL) {
|
||||
if(!bclk)
|
||||
bclk = (double) cpu_msrinfo(handle, INFO_BCLK) / 100;
|
||||
if(bclk > 0) {
|
||||
cur_clock = cpu_clock_by_ic(10, 4);
|
||||
if(cur_clock > 0)
|
||||
return cur_clock / bclk;
|
||||
}
|
||||
}
|
||||
|
||||
err = cpu_rdmsr(handle, 0x2a, &r);
|
||||
if (err) return CPU_INVALID_VALUE;
|
||||
return (r>>22) & 0x1f;
|
||||
}
|
||||
|
||||
static double get_info_max_multiplier(struct msr_driver_t* handle)
|
||||
{
|
||||
#define PLATFORM_INFO_MSR 206
|
||||
#define PLATFORM_INFO_MSR_low 8
|
||||
#define PLATFORM_INFO_MSR_high 15
|
||||
int err;
|
||||
uint64_t val, r;
|
||||
static int multiplier = 0;
|
||||
|
||||
if(cpuid_get_vendor() == VENDOR_INTEL) {
|
||||
if(!multiplier) {
|
||||
cpu_rdmsr_range(handle, PLATFORM_INFO_MSR, PLATFORM_INFO_MSR_high, PLATFORM_INFO_MSR_low, &val);
|
||||
multiplier = (int) val;
|
||||
}
|
||||
if(multiplier > 0)
|
||||
return multiplier;
|
||||
}
|
||||
|
||||
err = cpu_rdmsr(handle, 0x198, &r);
|
||||
if (err) return CPU_INVALID_VALUE;
|
||||
return (r >> 40) & 0x1f;
|
||||
}
|
||||
|
||||
static int get_info_temperature(struct msr_driver_t* handle)
|
||||
{
|
||||
#define IA32_THERM_STATUS 0x19C
|
||||
#define IA32_TEMPERATURE_TARGET 0x1a2
|
||||
uint64_t digital_readout, thermal_status, PROCHOT_temp;
|
||||
|
||||
if(cpuid_get_vendor() == VENDOR_INTEL) {
|
||||
// https://github.com/ajaiantilal/i7z/blob/5023138d7c35c4667c938b853e5ea89737334e92/helper_functions.c#L59
|
||||
cpu_rdmsr_range(handle, IA32_THERM_STATUS, 23, 16, &digital_readout);
|
||||
cpu_rdmsr_range(handle, IA32_THERM_STATUS, 32, 31, &thermal_status);
|
||||
cpu_rdmsr_range(handle, IA32_TEMPERATURE_TARGET, 23, 16, &PROCHOT_temp);
|
||||
|
||||
// These bits are thermal status : 1 if supported, 0 else
|
||||
if(thermal_status)
|
||||
return(PROCHOT_temp - digital_readout); // Temperature is prochot - digital readout
|
||||
}
|
||||
|
||||
return CPU_INVALID_VALUE;
|
||||
}
|
||||
|
||||
static double get_info_voltage(struct msr_driver_t* handle)
|
||||
{
|
||||
#define MSR_PERF_STATUS 0x198
|
||||
#define MSR_PSTATE_S 0xC0010063
|
||||
#define MSR_PSTATE_0 0xC0010064
|
||||
uint64_t val;
|
||||
|
||||
if(cpuid_get_vendor() == VENDOR_INTEL) {
|
||||
cpu_rdmsr_range(handle, MSR_PERF_STATUS, 47, 32, &val);
|
||||
double ret = (double) val / (1 << 13);
|
||||
return (ret > 0) ? ret : CPU_INVALID_VALUE;
|
||||
}
|
||||
else if(cpuid_get_vendor() == VENDOR_AMD) {
|
||||
/* http://support.amd.com/TechDocs/42301_15h_Mod_00h-0Fh_BKDG.pdf
|
||||
MSRC001_0063[2:0] = CurPstate
|
||||
MSRC001_00[6B:64][15:9] = CpuVid */
|
||||
uint64_t CpuVid;
|
||||
cpu_rdmsr_range(handle, MSR_PSTATE_S, 2, 0, &val);
|
||||
if(val <= 7) { // Support 8 P-states
|
||||
cpu_rdmsr_range(handle, MSR_PSTATE_0 + val, 15, 9, &CpuVid);
|
||||
return 1.550 - 0.0125 * CpuVid; // 2.4.1.6.3 - Serial VID (SVI) Encodings
|
||||
}
|
||||
}
|
||||
|
||||
return CPU_INVALID_VALUE;
|
||||
}
|
||||
|
||||
static double get_info_bclk(struct msr_driver_t* handle)
|
||||
{
|
||||
static int max_clock = 0, multiplier = 0;
|
||||
|
||||
if(!max_clock)
|
||||
max_clock = cpu_clock_measure(100, 1); // Return the non-Turbo clock
|
||||
if(!multiplier)
|
||||
multiplier = cpu_msrinfo(handle, INFO_MAX_MULTIPLIER) / 100;
|
||||
if(max_clock > 0 && multiplier > 0)
|
||||
return (double) max_clock / multiplier;
|
||||
|
||||
return CPU_INVALID_VALUE;
|
||||
}
|
||||
|
||||
#ifndef MSRINFO_DEFINED
|
||||
|
||||
#define IA32_PACKAGE_THERM_STATUS 0x1b1
|
||||
#define MSR_TURBO_RATIO_LIMIT 429
|
||||
|
||||
int cpu_rdmsr_range(struct msr_driver_t* handle, uint32_t msr_index, uint8_t highbit,
|
||||
uint8_t lowbit, uint64_t* result)
|
||||
|
|
@ -520,13 +617,6 @@ int cpu_rdmsr_range(struct msr_driver_t* handle, uint32_t msr_index, uint8_t hig
|
|||
|
||||
int cpu_msrinfo(struct msr_driver_t* handle, cpu_msrinfo_request_t which)
|
||||
{
|
||||
uint64_t r;
|
||||
int err, cur_clock;
|
||||
static int max_clock = 0, multiplier = 0;
|
||||
static double bclk = 0.0;
|
||||
uint64_t val;
|
||||
int digital_readout, thermal_status, PROCHOT_temp;
|
||||
|
||||
if (handle == NULL)
|
||||
return set_error(ERR_HANDLE);
|
||||
switch (which) {
|
||||
|
|
@ -535,86 +625,17 @@ int cpu_msrinfo(struct msr_driver_t* handle, cpu_msrinfo_request_t which)
|
|||
case INFO_APERF:
|
||||
return perfmsr_measure(handle, 0xe8);
|
||||
case INFO_CUR_MULTIPLIER:
|
||||
{
|
||||
if(cpuid_get_vendor() == VENDOR_INTEL)
|
||||
{
|
||||
if(!bclk)
|
||||
bclk = (double) cpu_msrinfo(handle, INFO_BCLK) / 100;
|
||||
if(bclk > 0)
|
||||
{
|
||||
cur_clock = cpu_clock_by_ic(10, 4);
|
||||
if(cur_clock > 0)
|
||||
return (int) (cur_clock / bclk * 100);
|
||||
}
|
||||
}
|
||||
err = cpu_rdmsr(handle, 0x2a, &r);
|
||||
if (err) return CPU_INVALID_VALUE;
|
||||
return (int) ((r>>22) & 0x1f) * 100;
|
||||
}
|
||||
return (int) get_info_cur_multiplier(handle) * 100;
|
||||
case INFO_MAX_MULTIPLIER:
|
||||
{
|
||||
if(cpuid_get_vendor() == VENDOR_INTEL)
|
||||
{
|
||||
if(!multiplier) {
|
||||
cpu_rdmsr_range(handle, PLATFORM_INFO_MSR, PLATFORM_INFO_MSR_high, PLATFORM_INFO_MSR_low, &val);
|
||||
multiplier = (int) val;
|
||||
}
|
||||
if(multiplier > 0)
|
||||
return multiplier * 100;
|
||||
}
|
||||
err = cpu_rdmsr(handle, 0x198, &r);
|
||||
if (err) return CPU_INVALID_VALUE;
|
||||
return (int) ((r >> 40) & 0x1f) * 100;
|
||||
}
|
||||
return (int) get_info_max_multiplier(handle) * 100;
|
||||
case INFO_TEMPERATURE:
|
||||
if(cpuid_get_vendor() == VENDOR_INTEL)
|
||||
{
|
||||
// https://github.com/ajaiantilal/i7z/blob/5023138d7c35c4667c938b853e5ea89737334e92/helper_functions.c#L59
|
||||
|
||||
cpu_rdmsr_range(handle, IA32_THERM_STATUS, 23, 16, &digital_readout);
|
||||
cpu_rdmsr_range(handle, IA32_THERM_STATUS, 32, 31, &thermal_status);
|
||||
cpu_rdmsr_range(handle, IA32_TEMPERATURE_TARGET, 23, 16, &PROCHOT_temp);
|
||||
|
||||
// These bits are thermal status : 1 if supported, 0 else
|
||||
if(thermal_status)
|
||||
return(PROCHOT_temp - digital_readout); // Temperature is prochot - digital readout
|
||||
}
|
||||
return CPU_INVALID_VALUE;
|
||||
return get_info_temperature(handle);
|
||||
case INFO_THROTTLING:
|
||||
return CPU_INVALID_VALUE;
|
||||
case INFO_VOLTAGE:
|
||||
{
|
||||
if(cpuid_get_vendor() == VENDOR_INTEL)
|
||||
{
|
||||
cpu_rdmsr_range(handle, MSR_PERF_STATUS, 47, 32, &val);
|
||||
double ret = (double) val / (1 << 13);
|
||||
return (ret > 0) ? (int) (ret * 100) : CPU_INVALID_VALUE;
|
||||
}
|
||||
else if(cpuid_get_vendor() == VENDOR_AMD)
|
||||
{
|
||||
/* http://support.amd.com/TechDocs/42301_15h_Mod_00h-0Fh_BKDG.pdf
|
||||
MSRC001_0063[2:0] = CurPstate
|
||||
MSRC001_00[6B:64][15:9] = CpuVid */
|
||||
uint64_t CpuVid;
|
||||
cpu_rdmsr_range(handle, MSR_PSTATE_S, 2, 0, &val);
|
||||
if(val <= 7) { // Support 8 P-states
|
||||
cpu_rdmsr_range(handle, MSR_PSTATE_0 + val, 15, 9, &CpuVid);
|
||||
return (int) (1.550 - 0.0125 * CpuVid) * 100; // 2.4.1.6.3 - Serial VID (SVI) Encodings
|
||||
}
|
||||
}
|
||||
return CPU_INVALID_VALUE;
|
||||
}
|
||||
return (int) get_info_voltage(handle) * 100;
|
||||
case INFO_BCLK:
|
||||
{
|
||||
if(!max_clock)
|
||||
max_clock = cpu_clock_measure(100, 1); // Return the non-Turbo clock
|
||||
if(!multiplier)
|
||||
multiplier = cpu_msrinfo(handle, INFO_MAX_MULTIPLIER) / 100;
|
||||
if(max_clock > 0 && multiplier > 0)
|
||||
return (int) ((double) max_clock / multiplier * 100);
|
||||
|
||||
return CPU_INVALID_VALUE;
|
||||
}
|
||||
return (int) get_info_bclk(handle) * 100;
|
||||
default:
|
||||
return CPU_INVALID_VALUE;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue