cvs commit: src/sys/sparc64/include cpufunc.h md_var.h src/sys/sparc64/sparc64 machdep.c pmap.c

[Jake Burkholder]

jake        2003/04/06 10:05:26 PDT

  FreeBSD src repository

  Modified files:
    sys/sparc64/include  cpufunc.h md_var.h 
    sys/sparc64/sparc64  machdep.c pmap.c 
  Log:
  Use the vis block copy/zero functions for pmap_copy_page and pmap_zero_page.
  These are called through function pointers so that different implementations
  can be provided for cheetah, where the block load instructions may or may
  not be a win, and so they can be disabled with the machdep.use_vis tunable.
  In terms of raw bandwidth the integer versions are faster, but not allocating
  lines in the L2 cache for useless data gives a measurable improvement in user
  time for the benchmarks I tested (mostly buildworld with -j8).
  
  As far as I can tell the instructions used are implemented on everything
  back to UltraSPARC I, so there should not be a problem with different cpu
  types.
  
  Revision  Changes    Path
  1.16      +0 -3      src/sys/sparc64/include/cpufunc.h
  1.13      +9 -4      src/sys/sparc64/include/md_var.h
  1.86      +14 -0     src/sys/sparc64/sparc64/machdep.c
  1.106     +6 -6      src/sys/sparc64/sparc64/pmap.c