Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / obp / obp / pkg / confvar / nvdevice.fth

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\ Hypervisor Software File: nvdevice.fth
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id: @(#)nvdevice.fth 1.6 06/02/07
purpose: 
copyright: Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

exported-headerless

defer reset-config	' noop is reset-config
defer init-nvram-hook	' noop is init-nvram-hook

: init-nvmagic# ( -- )
   nvmagic-hash nvfixed-size +  init-nvram-hook xlsplit +  is nvmagic#
;

: open-nvram ( nvdevice$ -- ok? )
   2dup open-nvfixed-region >r  open-nvtoken-region r> and
;

: init-nvram ( nvdevice$ -- )
   open-nvram 0=  if
      cmn-fatal[ " Unable to open NVRAM device" ]cmn-end  exit
   then
   init-nvmagic#
   load-nvfixed-data
   nvfixed-region-ok?  nvtoken-region-ok?  and  if
      ['] load-nvtoken-data catch 0=  if  exit  then
      cmn-fatal[ 
      " NVRAM contents corrupt; Reinitializing NVRAM parameters." 
      ]cmn-end
   else
      cmn-note[ 
      " NVRAM contents invalid; Setting NVRAM parameters to default values." 
      ]cmn-end
   then
   init-nvfixed-region init-nvtoken-region
   true to token-store-disabled?
   (set-defaults)
   false to token-store-disabled?
   reset-config
;

: disable-backing-store ( -- )
   (garbage-collect)
   true to fixed-store-disabled?
   true to token-store-disabled?
;

: enable-backing-store ( -- )
   false to fixed-store-disabled? 
   false to token-store-disabled? 
;

unexported-words