)]}'
{
  "commit": "991528d7348667924176f3e29addea0675298944",
  "tree": "ed8552bd4c696700a95ae37b26c4197923207ae7",
  "parents": [
    "b4bd8c66435a8cdf8c90334fb3b517a23ff2ab95"
  ],
  "author": {
    "name": "Venkatesh Pallipadi",
    "email": "venkatesh.pallipadi@intel.com",
    "time": "Mon Sep 25 16:28:13 2006 -0700"
  },
  "committer": {
    "name": "Len Brown",
    "email": "len.brown@intel.com",
    "time": "Sat Oct 14 00:35:39 2006 -0400"
  },
  "message": "ACPI: Processor native C-states using MWAIT\n\nIntel processors starting with the Core Duo support\nsupport processor native C-state using the MWAIT instruction.\nRefer: Intel Architecture Software Developer\u0027s Manual\nhttp://www.intel.com/design/Pentium4/manuals/253668.htm\n\nPlatform firmware exports the support for Native C-state to OS using\nACPI _PDC and _CST methods.\nRefer: Intel Processor Vendor-Specific ACPI: Interface Specification\nhttp://www.intel.com/technology/iapc/acpi/downloads/302223.htm\n\nWith Processor Native C-state, we use \u0027MWAIT\u0027 instruction on the processor\nto enter different C-states (C1, C2, C3).  We won\u0027t use the special IO\nports to enter C-state and no SMM mode etc required to enter C-state.\nOverall this will mean better C-state support.\n\nOne major advantage of using MWAIT for all C-states is, with this and\n\"treat interrupt as break event\" feature of MWAIT, we can now get accurate\ntiming for the time spent in C1, C2, ..  states.\n\nSigned-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n",
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