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From: Andriy Gapon <avg@FreeBSD.org>
Date: Mon, 13 Sep 2010 09:51:24 +0000 (UTC)
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Subject: cvs commit: src/sys/dev/acpica acpi_cpu.c
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avg         2010-09-13 09:51:24 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/acpica       acpi_cpu.c 
  Log:
  SVN rev 212549 on 2010-09-13 09:51:24Z by avg
  
  acpi_cpu: do not apply P_LVLx_LAT rules to latencies returned by _CST
  
  ACPI specification sates that if P_LVL2_LAT > 100, then a system doesn't
  support C2; if P_LVL3_LAT > 1000, then C3 is not supported.
  But there are no such rules for Cx state data returned by _CST.  If a
  state is not supported it should not be included into the return
  package.  In other words, any latency value returned by _CST is valid,
  it's up to the OS and/or user to decide whether to use it.
  
  Submitted by:   nork
  Suggested by:   mav
  MFC after:      1 week
  
  Revision  Changes    Path
  1.92      +1 -9      src/sys/dev/acpica/acpi_cpu.c