projects / OpenSPARC-T2-DV / blame
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1 | // ========== Copyright Header Begin ========================================== |
| 2 | // | |
| 3 | // OpenSPARC T2 Processor File: ilupeuIngressDmaWrStr.vr | |
| 4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
| 5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
| 6 | // | |
| 7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 8 | // | |
| 9 | // This program is free software; you can redistribute it and/or modify | |
| 10 | // it under the terms of the GNU General Public License as published by | |
| 11 | // the Free Software Foundation; version 2 of the License. | |
| 12 | // | |
| 13 | // This program is distributed in the hope that it will be useful, | |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | // GNU General Public License for more details. | |
| 17 | // | |
| 18 | // You should have received a copy of the GNU General Public License | |
| 19 | // along with this program; if not, write to the Free Software | |
| 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 21 | // | |
| 22 | // For the avoidance of doubt, and except that if any non-GPL license | |
| 23 | // choice is available it will apply instead, Sun elects to use only | |
| 24 | // the General Public License version 2 (GPLv2) at this time for any | |
| 25 | // software where a choice of GPL license versions is made | |
| 26 | // available with the language indicating that GPLv2 or any later version | |
| 27 | // may be used, or where a choice of which version of the GPL is applied is | |
| 28 | // otherwise unspecified. | |
| 29 | // | |
| 30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 31 | // CA 95054 USA or visit www.sun.com if you need additional information or | |
| 32 | // have any questions. | |
| 33 | // | |
| 34 | // ========== Copyright Header End ============================================ | |
| 35 | class DmaWrPEUStr extends PEUStrBase | |
| 36 | { | |
| 37 | integer f_len; // The packet's payload length | |
| 38 | bit[3:0] f_firstDWBE; // It's "first DWBE" field | |
| 39 | bit[3:0] f_lastDWBE; // It's "last DWBE" field | |
| 40 | integer f_bndy; // The address' boundary | |
| 41 | bit f_lenSpecified; // Was a length specified? | |
| 42 | bit f_firstSpecified; // Was a "firstDWBE" specified? | |
| 43 | bit f_lastSpecified; // Was a "lastDWBE" specified? | |
| 44 | bit f_bndySpecified; // Was an addr bndy specified? | |
| 45 | ||
| 46 | task new( PEUTestEnv a_env ) | |
| 47 | { | |
| 48 | super.new( a_env ); | |
| 49 | f_lenSpecified = 0; | |
| 50 | f_firstSpecified = 0; | |
| 51 | f_lastSpecified = 0; | |
| 52 | f_bndySpecified = 0; | |
| 53 | } | |
| 54 | task SetLen( integer a_len ) | |
| 55 | { | |
| 56 | f_len = a_len; | |
| 57 | f_lenSpecified = 1; | |
| 58 | } | |
| 59 | task SetFirstDWBE( bit[3:0] a_dwbe ) | |
| 60 | { | |
| 61 | f_firstDWBE = a_dwbe; | |
| 62 | f_firstSpecified = 1; | |
| 63 | } | |
| 64 | task SetLastDWBE( bit[3:0] a_dwbe ) | |
| 65 | { | |
| 66 | f_lastDWBE = a_dwbe; | |
| 67 | f_lastSpecified = 1; | |
| 68 | } | |
| 69 | task SetAddrBndy( integer a_bndy ) | |
| 70 | { | |
| 71 | f_bndy = a_bndy; | |
| 72 | f_bndySpecified = 1; | |
| 73 | } | |
| 74 | task Execute() | |
| 75 | { | |
| 76 | bit[PEC_PCI__HDR] ingressHdr; // The ingress TLP's header | |
| 77 | integer ingressData; // A payload descriptor | |
| 78 | bit[7:0] ingressTag; // The tag for the TLP | |
| 79 | ||
| 80 | // First, get in line for a DMA tag... | |
| 81 | f_env.allocDmaTag( ingressTag ); | |
| 82 | ||
| 83 | // Then build a TLP | |
| 84 | if ( f_lenSpecified ) | |
| 85 | f_env.genIngressWrReq( ingressTag, ingressHdr, ingressData, f_len ); | |
| 86 | else | |
| 87 | f_env.genIngressWrReq( ingressTag, ingressHdr, ingressData ); | |
| 88 | ||
| 89 | // ...and set fields as requested | |
| 90 | // by the caller. | |
| 91 | if ( f_firstSpecified ) | |
| 92 | ingressHdr[PEC_PCI__FIRST_DWBE] = f_firstDWBE; | |
| 93 | if ( f_lastSpecified ) | |
| 94 | ingressHdr[PEC_PCI__LAST_DWBE] = f_lastDWBE; | |
| 95 | if ( f_bndySpecified ) | |
| 96 | f_env.setAddrBndy( ingressHdr, f_bndy, 64 ); | |
| 97 | ||
| 98 | f_env.reserveIngressCredits( ingressHdr ); | |
| 99 | f_env.drivePCIE( ingressHdr, ingressData ); | |
| 100 | f_env.consumeIngressCredits( ingressHdr ); | |
| 101 | f_env.expectILU( ingressHdr, ingressData ); | |
| 102 | f_env.freeDmaTag( ingressTag ); | |
| 103 | } /* end Execute */ | |
| 104 | } /* end DmaWrPECStr */ |