obp/obp/cpu/sparc/ultra/mmu-policy/8k-pages.fth

\ ========== Copyright Header Begin ==========================================
\
\ Hypervisor Software File: 8k-pages.fth
\
\ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
\
\  - Do no alter or remove copyright notices
\
\  - Redistribution and use of this software in source and binary forms, with
\    or without modification, are permitted provided that the following
\    conditions are met:
\
\  - Redistribution of source code must retain the above copyright notice,
\    this list of conditions and the following disclaimer.
\
\  - Redistribution in binary form must reproduce the above copyright notice,
\    this list of conditions and the following disclaimer in the
\    documentation and/or other materials provided with the distribution.
\
\    Neither the name of Sun Microsystems, Inc. or the names of contributors
\ 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
\ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
\ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
\ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
\ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
\ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
\ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
\ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
\ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
\
\ You acknowledge that this software is not designed, licensed or
\ intended for use in the design, construction, operation or maintenance of
\ any nuclear facility.
\
\ ========== Copyright Header End ============================================
id: @(#)8k-pages.fth 1.1 03/06/04
purpose:
copyright: Copyright 2003 Sun Microsystems, Inc. All Rights Reserved
copyright: Use is subject to license terms.

headers

\ NOTE:
\ The final 2drop is patched at RUNTIME by enable-map-flushing
\ this code is in a performance path which is why it is not
\ using a variable/value/defer to switch this feature on/off.
: map-pages ( pa.lo pa.hi virtual size -- )
   pagesize >mmu-boundaries                     ( pa.lo pa.hi va' size' )
   2>r 2r@ (map-pages)                          ( )
   2r>                                          ( va size )
   \ patched to flush-tlb-range
   2drop
;

: unmap-pages ( va len -- )
   pagesize >mmu-boundaries                     ( va' len' )
   2dup bounds ?do                              ( va' len' )
      i pgmap@ 0 >tte-valid invert and          ( va' len' tte )
      i pgmap!                                  ( va' len' )
   pagesize +loop                               ( va' len' )
   flush-tlb-range                              ( )
;

headerless