Re: [LTP] [PATCH v14] high_freq_hwp_cap_cppc.c: new test

[Cyril Hrubis <chrubis@suse.cz>]

Hi!
> +static void setup(void)
> +{
> +	unsigned int eax, ebx, ecx, edx;
> +
> +	__cpuid_count(0, 0, eax, ebx, ecx, edx);
> +	if (ebx != CPUID_VENDOR_EBX || edx != CPUID_VENDOR_EDX ||
> +	    ecx != CPUID_VENDOR_ECX)
> +		tst_brk(TCONF, "not a GenuineIntel CPU");

I've send a patch for the tst_test structure that adds .needs_cpu_vendor
field. If that gets merged you can just set it to "GenuineIntel" and the
test should be automatically skipped on anything but Intel CPUs.

> +	__cpuid_count(CPUID_LEAF_THERMAL, 0, eax, ebx, ecx, edx);
> +	if (!(eax & CPUID_HWP_BIT))
> +		tst_brk(TCONF, "HWP not supported (MSR 0x771 unavailable)");

This specific check still needs to be ifdefed around with x86 and x86_64
macros.

-- 
Cyril Hrubis
chrubis@suse.cz

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