cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ
In ST/CZ CPUID 8000_0007_EDX[11, ProcFeedbackInterface] is 0, but the mechanism is still available and can be used. Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -14,6 +14,7 @@
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/percpu-defs.h>
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#include <linux/init.h>
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#include <linux/mod_devicetable.h>
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@ -109,12 +110,18 @@ out:
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static int __init amd_freq_sensitivity_init(void)
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{
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u64 val;
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struct pci_dev *pcidev;
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if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
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return -ENODEV;
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pcidev = pci_get_device(PCI_VENDOR_ID_AMD,
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PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL);
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if (!pcidev) {
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if (!static_cpu_has(X86_FEATURE_PROC_FEEDBACK))
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return -ENODEV;
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}
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if (rdmsrl_safe(MSR_AMD64_FREQ_SENSITIVITY_ACTUAL, &val))
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return -ENODEV;
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