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From: Marius Strobl <marius@FreeBSD.org>
Date: Sun, 17 Oct 2010 16:46:54 +0000 (UTC)
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Subject: cvs commit: src/sys/sparc64/sparc64 tick.c
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marius      2010-10-17 16:46:54 UTC

  FreeBSD src repository

  Modified files:
    sys/sparc64/sparc64  tick.c 
  Log:
  SVN rev 213985 on 2010-10-17 16:46:54Z by marius
  
  - In oneshot-mode it doesn't make sense to try to compensate the clock
    drift in order to achieve a more stable clock as the tick intervals may
    vary in the first place. In fact I haven't seen this code kick in when
    in oneshot-mode so just skip it in that case.
  - There's no need to explicitly stop the (S)TICK counter in oneshot-mode
    with every tick as it just won't trigger again with the (S)TICK compare
    register set to a value in the past (with a wrap-around once every ~195
    years of uptime at 1.5 GHz this isn't something we have to worry about
    in practice).
  - Given that we'll disable interrupts completely anyway there's no
    need to enter critical sections.
  
  Revision  Changes    Path
  1.30      +41 -45    src/sys/sparc64/sparc64/tick.c