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Merge branch 'intel_idle+acpi'

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Merge changes updating the ACPI processor driver in order to export
acpi_processor_evaluate_cst() to the code outside of it and adding
ACPI support to the intel_idle driver based on that.

* intel_idle+acpi:
  Documentation: admin-guide: PM: Add intel_idle document
  intel_idle: Use ACPI _CST on server systems
  intel_idle: Add module parameter to prevent ACPI _CST from being used
  intel_idle: Allow ACPI _CST to be used for selected known processors
  cpuidle: Allow idle states to be disabled by default
  intel_idle: Use ACPI _CST for processor models without C-state tables
  intel_idle: Refactor intel_idle_cpuidle_driver_init()
  ACPI: processor: Export acpi_processor_evaluate_cst()
  ACPI: processor: Make ACPI_PROCESSOR_CSTATE depend on ACPI_PROCESSOR
  ACPI: processor: Clean up acpi_processor_evaluate_cst()
  ACPI: processor: Introduce acpi_processor_evaluate_cst()
  ACPI: processor: Export function to claim _CST control
This commit is contained in:
Rafael J. Wysocki
2020-01-23 00:35:50 +01:00
parent cefb9409ff a329918221
commit e6cf623ba3
12 changed files with 766 additions and 228 deletions
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1
include/linux/cpuidle.h
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@@ -77,6 +77,7 @@ struct cpuidle_state {
#define CPUIDLE_FLAG_COUPLED BIT(1) /* state applies to multiple cpus */
#define CPUIDLE_FLAG_TIMER_STOP BIT(2) /* timer is stopped on this state */
#define CPUIDLE_FLAG_UNUSABLE BIT(3) /* avoid using this state */
#define CPUIDLE_FLAG_OFF BIT(4) /* disable this state by default */
struct cpuidle_device_kobj;
struct cpuidle_state_kobj;