Active State Power Management (Linux Kernel 2.6.26) - HowFlow

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http://www.lesswatts.org/projects/devices-power-management/pcie.php

Active State Power Management (Linux Kernel 2.6.26)

Category: Linux | Tags: development kernel aspm pci linux

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lesswatts.org — PCI Express (PCIe) Active State Power Management (ASPM)

Posted by

luchs 5 months ago

What is ASPM

http://www.lesswatts.org/projects/devices-power-management/pcie.php

How to activate ASPM

The kernel configuration option is called CONFIG_PCIEASPM and can be found under Bus options (PCI etc.) / PCI Express ASPM support (Experimental).


CONFIG_PCIEASPM:

This enables PCI Express ASPM (Active State Power Management) and
Clock Power Management. ASPM supports state L0/L0s/L1.

When in doubt, say N.
Symbol: PCIEASPM [=y]
Prompt: PCI Express ASPM support(Experimental)
  Defined at drivers/pci/pcie/Kconfig:33
  Depends on: PCI && EXPERIMENTAL && PCIEPORTBUS
  Location:
    -> Bus options (PCI etc.)
      -> PCI Express support (PCIEPORTBUS [=y])

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