projects / OpenSPARC-T2-SAM / blame
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1 | \ ========== Copyright Header Begin ========================================== |
| 2 | \ | |
| 3 | \ Hypervisor Software File: tte.fth | |
| 4 | \ | |
| 5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 6 | \ | |
| 7 | \ - Do no alter or remove copyright notices | |
| 8 | \ | |
| 9 | \ - Redistribution and use of this software in source and binary forms, with | |
| 10 | \ or without modification, are permitted provided that the following | |
| 11 | \ conditions are met: | |
| 12 | \ | |
| 13 | \ - Redistribution of source code must retain the above copyright notice, | |
| 14 | \ this list of conditions and the following disclaimer. | |
| 15 | \ | |
| 16 | \ - Redistribution in binary form must reproduce the above copyright notice, | |
| 17 | \ this list of conditions and the following disclaimer in the | |
| 18 | \ documentation and/or other materials provided with the distribution. | |
| 19 | \ | |
| 20 | \ Neither the name of Sun Microsystems, Inc. or the names of contributors | |
| 21 | \ may be used to endorse or promote products derived from this software | |
| 22 | \ without specific prior written permission. | |
| 23 | \ | |
| 24 | \ This software is provided "AS IS," without a warranty of any kind. | |
| 25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
| 26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
| 27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
| 28 | \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
| 29 | \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
| 30 | \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
| 31 | \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
| 32 | \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
| 33 | \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
| 34 | \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
| 35 | \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
| 36 | \ | |
| 37 | \ You acknowledge that this software is not designed, licensed or | |
| 38 | \ intended for use in the design, construction, operation or maintenance of | |
| 39 | \ any nuclear facility. | |
| 40 | \ | |
| 41 | \ ========== Copyright Header End ============================================ | |
| 42 | id: @(#)tte.fth 1.1 06/02/16 | |
| 43 | purpose: | |
| 44 | copyright: Copyright 2006 Sun Microsystems, Inc. All Rights Reserved | |
| 45 | copyright: Use is subject to license terms. | |
| 46 | ||
| 47 | headerless | |
| 48 | 1 #pabits lshift 1- constant pa-mask | |
| 49 | h# 3 constant tteshift | |
| 50 | h# 8 constant /tte | |
| 51 | ||
| 52 | : >tte-writable ( tte -- tte' ) 1 d# 6 lshift or ; | |
| 53 | : >tte-readonly ( tte -- tte' ) 1 d# 6 lshift invert and ; | |
| 54 | : >tte-priv ( tte -- tte' ) 1 d# 8 lshift or ; | |
| 55 | : >tte-cv ( tte -- tte' ) 1 d# 9 lshift or ; | |
| 56 | : >tte-cp ( tte -- tte' ) 1 d# 10 lshift or ; | |
| 57 | : >tte-effect ( tte -- tte' ) 1 d# 11 lshift or ; | |
| 58 | : >tte-invert ( tte -- tte' ) 1 d# 12 lshift or ; | |
| 59 | : >tte-locked ( tte -- tte' ) 1 d# 61 lshift or ; | |
| 60 | : >tte-valid ( tte -- tte' ) 1 d# 63 lshift or ; | |
| 61 | : >tte-global ( tte -- tte' ) 0 or ; | |
| 62 | : >tte-8k ( tte -- tte' ) 7 invert and 0 or ; | |
| 63 | : >tte-64k ( tte -- tte' ) 7 invert and 1 or ; | |
| 64 | : >tte-4m ( tte -- tte' ) 7 invert and 3 or ; | |
| 65 | : >tte-256m ( tte -- tte' ) 7 invert and 5 or ; | |
| 66 | ||
| 67 | : >tte-soft ( tte -- tte' ) h# 30 invert and h# 10 or ; | |
| 68 | 0 | |
| 69 | >tte-writable | |
| 70 | >tte-cv | |
| 71 | >tte-effect | |
| 72 | >tte-global | |
| 73 | >tte-invert | |
| 74 | constant tte-mode-mask | |
| 75 | ||
| 76 | : mode>tte ( mode tte -- tte' ) | |
| 77 | ||
| 78 | \ MODE == -1 is the default | |
| 79 | over true = if nip exit then ( mode tte ) | |
| 80 | ||
| 81 | tte-mode-mask invert and ( mode tte" ) | |
| 82 | over h# 001 and if >tte-writable then ( mode tte" ) | |
| 83 | over h# 020 and if >tte-cv then ( mode tte" ) | |
| 84 | over h# 040 and if >tte-effect then ( mode tte" ) | |
| 85 | over h# 080 and if >tte-global then ( mode tte" ) | |
| 86 | over h# 100 and if >tte-invert then ( mode tte" ) | |
| 87 | nip | |
| 88 | ; | |
| 89 | : tte>mode ( tte -- mode ) | |
| 90 | 0 ( tte mode" ) | |
| 91 | over 0 >tte-writable and if h# 001 or then ( tte mode' ) | |
| 92 | 2 or \ Always readable ( tte mode' ) | |
| 93 | 4 or \ Always executable ( tte mode' ) | |
| 94 | over 0 >tte-cv and if h# 020 or then ( tte mode' ) | |
| 95 | over 0 >tte-effect and if h# 040 or then ( tte mode' ) | |
| 96 | over 0 >tte-global and if h# 080 or then ( tte mode' ) | |
| 97 | over 0 >tte-invert and if h# 100 or then ( tte mode ) | |
| 98 | nip | |
| 99 | ; | |
| 100 | ||
| 101 | : valid-tte? ( tte -- flag ) 0< ; | |
| 102 | ||
| 103 | : tte>size ( tte -- size ) 1 swap 7 and 3 * d# 13 + lshift ; | |
| 104 | ||
| 105 | \ Set this as the memory high water mark. | |
| 106 | variable physmax physmax off | |
| 107 | ||
| 108 | headers | |
| 109 | : memory? ( pa.lo pa.hi -- flag ) drop physmax @ < ; | |
| 110 | ||
| 111 | : tte> ( tte -- pa.lo pa.hi ) | |
| 112 | pa-mask and page#mask and 0 ( pa.lo pa.hi ) | |
| 113 | ; | |
| 114 | : >tte ( pa.lo pa.hi -- tte ) | |
| 115 | 2dup memory? if ( pa.lo pa.hi ) | |
| 116 | drop 0 >tte-cp >tte-cv ( pa tte ) | |
| 117 | else ( pa.lo pa.hi ) | |
| 118 | drop 0 >tte-effect ( pa tte ) | |
| 119 | then ( pa tte ) | |
| 120 | swap pa-mask and page#mask and or ( tte ) | |
| 121 | >tte-valid >tte-writable >tte-priv ( tte ) | |
| 122 | ; | |
| 123 | headerless |