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git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
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Huang Rui
4a06806e5d
Kernel ACPI subsytem introduced the sysfs attributes for acpi cppc library in below path: /sys/devices/system/cpu/cpuX/acpi_cppc/ And these attributes will be used for AMD P-State driver to provide some performance and frequency values. Reviewed-by: Shuah Khan <[email protected]> Signed-off-by: Huang Rui <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
22 lines
387 B
C
22 lines
387 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __ACPI_CPPC_H__
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#define __ACPI_CPPC_H__
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enum acpi_cppc_value {
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HIGHEST_PERF,
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LOWEST_PERF,
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NOMINAL_PERF,
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LOWEST_NONLINEAR_PERF,
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LOWEST_FREQ,
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NOMINAL_FREQ,
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REFERENCE_PERF,
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WRAPAROUND_TIME,
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MAX_CPPC_VALUE_FILES
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};
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unsigned long acpi_cppc_get_data(unsigned int cpu,
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enum acpi_cppc_value which);
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#endif /* _ACPI_CPPC_H */
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