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Modify INFO_MAX_MULTIPLIER for Intel in cpu_msrinfo()

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Xorg 2015-10-06 15:23:01 +02:00
parent ce6ba819f9
commit f11a5b6d16
1 changed files with 6 additions and 0 deletions
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6
libcpuid/rdmsr.c
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@ -481,6 +481,12 @@ int cpu_msrinfo(struct msr_driver_t* handle, cpu_msrinfo_request_t which)
}
case INFO_MAX_MULTIPLIER:
{
if(cpu_vendor() == VENDOR_INTEL)
{
int multiplier = (int) cpu_rdmsr_range (handle, PLATFORM_INFO_MSR, PLATFORM_INFO_MSR_high, PLATFORM_INFO_MSR_low, &error_indx);
if(multiplier > 0)
return multiplier * 100;
}
err = cpu_rdmsr(handle, 0x198, &r);
if (err) return CPU_INVALID_VALUE;
return (int) ((r >> 40) & 0x1f) * 100;