Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / obp / obp / arch / sun4v / fastfill.fth

\ ========== Copyright Header Begin ==========================================
\ 
\ Hypervisor Software File: fastfill.fth
\ 
\ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
\ 
\  - Do no alter or remove copyright notices
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\  - Redistribution and use of this software in source and binary forms, with 
\    or without modification, are permitted provided that the following 
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\    this list of conditions and the following disclaimer.
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\  - Redistribution in binary form must reproduce the above copyright notice,
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\ may be used to endorse or promote products derived from this software 
\ without specific prior written permission. 
\ 
\     This software is provided "AS IS," without a warranty of any kind. 
\ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, 
\ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A 
\ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN 
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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;

headerless

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

headerless