cvs commit: src/sys/dev/acpica5 acpi_cpu.c

[YONETANI Tomokazu <y0netan1@xxxxxxxxxxxxxxxxxxxxxxx>]

y0netan1    2006/08/07 16:27:22 PDT

DragonFly src repository

  Modified files:
    sys/dev/acpica5      acpi_cpu.c 
  Log:
  Fix a BM control -related panic by bringing rev 1.44-1.45
  of acpi_cpu.c from FreeBSD:
   revision 1.45
   date: 2004-10-11 21:15:10 +0000;  author: njl;  state: Exp;  lines: +28 -16;
   Update C3 support when BM control is not present.
  
   * Fix a bug where caches were flushed on non-C3 transitions.
   * Be sure a working flush cache instruction is present before using it.
   * Disable C3 completely if it isn't present.
   ----------------------------
   revision 1.44
   date: 2004-10-11 06:06:42 +0000;  author: njl;  state: Exp;  lines: +28 -17;
   If bus mastering control is not available (PM2_BLK), don't just disable
   C3.  Instead, flush caches before entering C3.  This may be slower but
   provides good power savings.
  
  Reported-by: Richard Nyberg <rnyberg at murmeldjur.se>
  
  Revision  Changes    Path
  1.13      +43 -20    src/sys/dev/acpica5/acpi_cpu.c


http://www.dragonflybsd.org/cvsweb/src/sys/dev/acpica5/acpi_cpu.c.diff?r1=1.12&r2=1.13&f=u