obp/obp/arch/sun4v/fastfill.fth

\ ========== Copyright Header Begin ==========================================
\
\ Hypervisor Software File: fastfill.fth
\
\ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
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\ ========== Copyright Header End ============================================
id: @(#)fastfill.fth 1.1 06/02/16
purpose:
copyright: Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

headers

code touch-memory ( pa.lo pa.hi size -- )
   sp                           sc1     pop             \ pa.hi in sc1
   sp                           scr     pop             \ pa.lo in scr
   begin
      tos  /x                   tos     subcc
      scr  tos memory-asi       sc2     ldxa
   0= until
      sc2  scr tos memory-asi           stxa
   sp  tos                              pop
   #Sync                                membar
c;

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code (clear-memory ( pa.lo pa.hi size -- )
   sp                           sc1     pop
   sp                           scr     pop
   tos  h# 40                   tos     subcc
   %g0  memory-asi                      wrasi
   begin
      scr  tos                  sc1     add
      %g0  sc1 h#  0 %asi               stxa
      %g0  sc1 h#  8 %asi               stxa
      %g0  sc1 h# 10 %asi               stxa
      %g0  sc1 h# 18 %asi               stxa
      %g0  sc1 h# 20 %asi               stxa
      %g0  sc1 h# 28 %asi               stxa
      %g0  sc1 h# 30 %asi               stxa
      %g0  sc1 h# 38 %asi               stxa
   0<= until
      tos  h# 40                tos     subcc
  sp                            tos     pop
c;

code hv-mem-scrub ( pa 0 len -- )
   %o0                  %l0     move
   %o1                  %l1     move
   %o5                  %l2     move
   sp                   %l3     pop
   sp                   %l3     pop
   %g0  h# 31           %o5     add             \ mem_scrub
   begin
      tos               %o1     move            \ Len
      %l3               %o0     move            \ RA
      %g0  0            always  htrapif
      %l3  %o1          %l3     add
      tos  %o1          tos     subcc
   0<= until
     %g0  h# 31         %o5     add             \ (mem scrub) delay
   %l2                  %o5     move
   %l1                  %o1     move
   %l0                  %o0     move
   sp                   tos     pop
c;

headers

defer clear-memory
alias bclear-memory-4MB clear-memory

' hv-mem-scrub  to clear-memory
' hv-mem-scrub  to clear-mem

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