cvs commit: src/sys/dev/hwpmc hwpmc_mod.c hwpmc_x86.c

Joseph Koshy jkoshy at
Fri Aug 26 19:49:40 GMT 2005

jkoshy      2005-08-26 19:49:32 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/dev/hwpmc        hwpmc_mod.c hwpmc_x86.c 
   [ hwpmc_mod.c:1.14,1.15 ]
   - Print PMC capabilities at module load time.
   - Return EOPNOTSUPP instead of EINVAL if a PMC allocation request
     specifies a PMC capability (e.g., sampling) that is not supported
     by hardware.  Return EINVAL early if the PMC class passed in is
     not recognized.
   [ hwpmc_x86.c:1.3 ]
   - On x86 processors, turn off 'INTERRUPT' capabilities on PMCs
     if the CPU does not have its local APIC enabled.
  Approved by:    re (scottl)
  Revision  Changes    Path  +24 -4     src/sys/dev/hwpmc/hwpmc_mod.c   +13 -3     src/sys/dev/hwpmc/hwpmc_x86.c

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