)]}'
{
  "log": [
    {
      "commit": "7d715a6c1ae5785d00fb9a876b5abdfc43abc44b",
      "tree": "58ec6d1969739a590e0c6c976bfebf04c8e9f31e",
      "parents": [
        "657472e9ccd9fccb82b775eb691c4b25b27451da"
      ],
      "author": {
        "name": "Shaohua Li",
        "email": "shaohua.li@intel.com",
        "time": "Mon Feb 25 09:46:41 2008 +0800"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Sun Apr 20 21:47:03 2008 -0700"
      },
      "message": "PCI: add PCI Express ASPM support\n\nPCI Express ASPM defines a protocol for PCI Express components in the D0\nstate to reduce Link power by placing their Links into a low power state\nand instructing the other end of the Link to do likewise. This\ncapability allows hardware-autonomous, dynamic Link power reduction\nbeyond what is achievable by software-only controlled power management.\nHowever, The device should be configured by software appropriately.\nEnabling ASPM will save power, but will introduce device latency.\n\nThis patch adds ASPM support in Linux. It introduces a global policy for\nASPM, a sysfs file /sys/module/pcie_aspm/parameters/policy can control\nit. The interface can be used as a boot option too. Currently we have\nbelow setting:\n        -default, BIOS default setting\n        -powersave, highest power saving mode, enable all available ASPM\nstate and clock power management\n        -performance, highest performance, disable ASPM and clock power\nmanagement\nBy default, the \u0027default\u0027 policy is used currently.\n\nIn my test, power difference between powersave mode and performance mode\nis about 1.3w in a system with 3 PCIE links.\n\nNote: some devices might not work well with aspm, either because chipset\nissue or device issue. The patch provide API (pci_disable_link_state),\ndriver can disable ASPM for specific device.\n\nSigned-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n"
    }
  ]
}