cvs commit: src/lib/libpmc Makefile libpmc.c pmc.3 pmc.h src/share/man/man4 hwpmc.4 src/sys/dev/hwpmc hwpmc_amd.c hwpmc_intel.c hwpmc_mod.c hwpmc_piv.c hwpmc_ppro.c src/sys/i386/include pmc_mdep.h src/sys/sys pmc.h ...

[Joseph Koshy]

jkoshy      2005-05-01 14:11:49 UTC

  FreeBSD src repository

  Modified files:
    lib/libpmc           Makefile libpmc.c pmc.3 pmc.h 
    share/man/man4       hwpmc.4 
    sys/dev/hwpmc        hwpmc_amd.c hwpmc_intel.c hwpmc_mod.c 
                         hwpmc_piv.c hwpmc_ppro.c 
    sys/i386/include     pmc_mdep.h 
    sys/sys              pmc.h 
    usr.sbin/pmccontrol  pmccontrol.c 
    usr.sbin/pmcstat     pmcstat.c 
  Log:
  Add convenience APIs pmc_width() and pmc_capabilities() to -lpmc.
  Have pmcstat(8) and pmccontrol(8) use these APIs.
  
  Return PMC class-related constants (PMC widths and capabilities)
  with the OP GETCPUINFO call leaving OP PMCINFO to return only the
  dynamic information associated with a PMC (i.e., whether enabled,
  owner pid, reload count etc.).
  
  Allow pmc_read() (i.e., OPS PMCRW) on active self-attached PMCs to
  get upto-date values from hardware since we can guarantee that the
  hardware is running the correct PMC at the time of the call.
  
  Bug fixes:
   - (x86 class processors) Fix a bug that prevented an RDPMC
     instruction from being recognized as permitted till after the
     attached process had context switched out and back in again after
     a pmc_start() call.
  
     Tighten the rules for using RDPMC class instructions: a GETMSR
     OP is now allowed only after an OP ATTACH has been done by the
     PMC's owner to itself.  OP GETMSR is not allowed for PMCs that
     track descendants, for PMCs attached to processes other than
     their owner processes.
  
   - (P4/HTT processors only) Fix a bug that caused the MI and MD
     layers to get out of sync.  Add a new MD operation 'get_config()'
     as part of this fix.
  
   - Allow multiple system-mode PMCs at the same row-index but on
     different CPUs to be allocated.
  
   - Reject allocation of an administratively disabled PMC.
  
  Misc. code cleanups and refactoring.  Improve a few comments.
  
  Revision  Changes    Path
  1.3       +2 -0      src/lib/libpmc/Makefile
  1.5       +30 -0     src/lib/libpmc/libpmc.c
  1.3       +23 -1     src/lib/libpmc/pmc.3
  1.2       +2 -0      src/lib/libpmc/pmc.h
  1.2       +18 -3     src/share/man/man4/hwpmc.4
  1.5       +31 -11    src/sys/dev/hwpmc/hwpmc_amd.c
  1.4       +3 -1      src/sys/dev/hwpmc/hwpmc_intel.c
  1.7       +258 -140  src/sys/dev/hwpmc/hwpmc_mod.c
  1.6       +305 -138  src/sys/dev/hwpmc/hwpmc_piv.c
  1.5       +31 -9     src/sys/dev/hwpmc/hwpmc_ppro.c
  1.4       +3 -0      src/sys/i386/include/pmc_mdep.h
  1.4       +81 -37    src/sys/sys/pmc.h
  1.2       +1 -1      src/usr.sbin/pmccontrol/pmccontrol.c
  1.2       +12 -12    src/usr.sbin/pmcstat/pmcstat.c