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Import some functions from i7z

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Get_Bits_Value() is renamed in get_bits_value(), imported from
 5023138d7c/helper_functions.c (L48)
get_msr_value() is renamed in cpu_rdmsr_range(), imported from
 5023138d7c/helper_functions.c (L234)
This commit is contained in:
Xorg 2015-10-06 14:56:29 +02:00
parent 6c8dfd306f
commit 36f24eae94
2 changed files with 54 additions and 0 deletions
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1
libcpuid/libcpuid.h
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@ -391,6 +391,7 @@ typedef enum {
ERR_HANDLE = -12, /*!< "Bad handle" */
ERR_INVMSR = -13, /*!< "Invalid MSR" */
ERR_INVCNB = -14, /*!< "Invalid core number" */
ERR_HANDLE_R = -15, /*!< "Error on handle read" */
} cpu_error_t;
/**

53
libcpuid/rdmsr.c
View file

@ -396,6 +396,59 @@ static int perfmsr_measure(struct msr_driver_t* handle, int msr)
}
#ifndef MSRINFO_DEFINED
#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
#define PLATFORM_INFO_MSR 206
#define PLATFORM_INFO_MSR_low 8
#define PLATFORM_INFO_MSR_high 15
int get_bits_value(unsigned long val, int highbit, int lowbit)
{
unsigned long data = val;
int bits = highbit - lowbit + 1;
if(bits < 64){
data >>= lowbit;
data &= (1ULL<<bits) - 1;
}
return(data);
}
uint64_t cpu_rdmsr_range(struct msr_driver_t* handle, uint32_t reg, unsigned int highbit,
unsigned int lowbit, int* error_indx)
{
uint64_t data;
int bits;
*error_indx =0;
if (pread (handle->fd, &data, sizeof data, reg) != sizeof data)
{
*error_indx = 1;
return set_error(ERR_HANDLE_R);
}
bits = highbit - lowbit + 1;
if (bits < 64)
{
/* Show only part of register */
data >>= lowbit;
data &= (1ULL << bits) - 1;
}
/* Make sure we get sign correct */
if (data & (1ULL << (bits - 1)))
{
data &= ~(1ULL << (bits - 1));
data = -data;
}
*error_indx = 0;
return (data);
}
int cpu_msrinfo(struct msr_driver_t* handle, cpu_msrinfo_request_t which)
{
uint64_t r;