projects / OpenSPARC-T2-SAM / blame
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1 | \ ========== Copyright Header Begin ========================================== |
| 2 | \ | |
| 3 | \ Hypervisor Software File: reentry-table.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: @(#)reentry-table.fth 1.8 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 | ||
| 49 | \ the Reentry Eligibility Table is an array of 8 byte words | |
| 50 | \ indexed by CPU ID. This table needs to be created at | |
| 51 | \ compile time since POST expects the OBP dictionary entry be | |
| 52 | \ locked in I-TLB. See FWARC/2000/022 for details. | |
| 53 | max-mondo-target# /x * constant /reentry-flag-table | |
| 54 | /x (align) here /reentry-flag-table allot | |
| 55 | dup /reentry-flag-table erase | |
| 56 | origin- ROMbase + constant reentry-flag-table | |
| 57 | ||
| 58 | \ mark the given CPU as eligible for reset reentry | |
| 59 | : enable-reentry ( mid -- ) | |
| 60 | dup 0 max-mondo-target# within if ( mid ) | |
| 61 | /x * reentry-flag-table + true swap x! ( ) | |
| 62 | else ( mid ) | |
| 63 | drop ( ) | |
| 64 | then ( ) | |
| 65 | ; | |
| 66 | ||
| 67 | \ mark the given CPU as ineligible for reset reentry | |
| 68 | : disable-reentry ( mid -- ) | |
| 69 | dup 0 max-mondo-target# within if ( mid ) | |
| 70 | /x * reentry-flag-table + false swap x! ( ) | |
| 71 | else ( mid ) | |
| 72 | drop ( ) | |
| 73 | then ( ) | |
| 74 | ; | |
| 75 | ||
| 76 | stand-init: Enable Reset Reentry Table | |
| 77 | \ slave CPUs will enable reentry for themselves | |
| 78 | mid@ enable-reentry | |
| 79 | reentry-flag-table ROMbase ! | |
| 80 | ; |