ACPI 6.0 adds a new method to specify the CPU idle states(c-states)
called Low Power Idle(LPI) states. Since new architectures like ARM64
use only LPIs, introduce ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE to
encapsulate all the code supporting the traditional C-states.
This patch will help to extend
ACPI 6.0 adds a new method to specify the CPU idle states(c-states)
called Low Power Idle(LPI) states. Since new architectures like ARM64
use only LPIs, introduce ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE to
encapsulate all the code supporting the traditional C-states.
This patch will help to extend
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