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Commit 0de51088 authored by Harald Welte's avatar Harald Welte Committed by Linus Torvalds
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CPUFREQ: Enable acpi-cpufreq driver for VIA/Centaur CPUs 



The VIA/Centaur C7, C7-M and Nano CPU's all support ACPI based cpu p-states
using a MSR interface.  The Linux driver just never made use of it, since in
addition to the check for the EST flag it also checked if the vendor is Intel.

Signed-off-by: default avatarHarald Welte <HaraldWelte@viatech.com>
[ Removed the vendor checks entirely  - Linus ]
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2b838687

arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c

+1 −5
Original line number Diff line number Diff line
@@ -90,11 +90,7 @@ static int check_est_cpu(unsigned int cpuid) 
{

	struct cpuinfo_x86 *cpu = &cpu_data(cpuid);



	if (cpu->x86_vendor != X86_VENDOR_INTEL ||

	    !cpu_has(cpu, X86_FEATURE_EST))

		return 0;



	return 1;

	return cpu_has(cpu, X86_FEATURE_EST);

}



static unsigned extract_io(u32 value, struct acpi_cpufreq_data *data)