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| author |   Harald Welte <HaraldWelte@viatech.com> | 2009-06-08 18:27:54 +0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-10 15:22:44 -0700 |
| commit | 0de51088e6a82bc8413d3ca9e28bbca2788b5b53 (patch) | |
| tree | 3003393dd3e60639b61200feefc13fc6bf5d28e0 /arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | |
| parent | Make /dev/zero reads interruptible by signals (diff) | |
| download | linux-dev-0de51088e6a82bc8413d3ca9e28bbca2788b5b53.tar.xz linux-dev-0de51088e6a82bc8413d3ca9e28bbca2788b5b53.zip | |
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: Harald Welte <HaraldWelte@viatech.com>
[ Removed the vendor checks entirely - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c index 752e8c6b2c7e..ae9b503220ca 100644 --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -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) |