Initial commit of OpenSPARC T2 design and verification files.
[OpenSPARC-T2-DV] / verif / env / fc / vera / niu_chk / niu_checker.vr
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1// ========== Copyright Header Begin ==========================================
2//
3// OpenSPARC T2 Processor File: niu_checker.vr
4// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
5// 4150 Network Circle, Santa Clara, California 95054, U.S.A.
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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
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34// ========== Copyright Header End ============================================
35#include <vera_defines.vrh>
36#include "plusArgMacros.vri"
37#include "std_display_class.vrh"
38#include "niu_sig.if.vrh"
39
40#define STD_DISP dbg
41
42class niu_checker {
43 reg niu_no_active_chk_disable;
44 StandardDisplay dbg;
45
46 task niu_no_active_chk ();
47 task new (StandardDisplay dbg) {
48 this.dbg = dbg;
49 if( mChkPlusarg(niu_no_active_chk_disable)) niu_no_active_chk_disable = 1;
50 else niu_no_active_chk_disable = 0;
51
52 if (!niu_no_active_chk_disable){
53 fork
54 niu_no_active_chk();
55 join none
56 }
57
58 }
59}
60
61task niu_checker::niu_no_active_chk()
62{
63string name;
64 name = "niu_checker::niu_no_active_chk";
65 while (!niu_no_active_chk_disable){
66 @(posedge niu_sig_intf.clk);
67 if (niu_sig_intf.ncu_niu_vld){
68 // niu_active_en = 1;
69 PR_INFO(name, MON_ALWAYS, psprintf ("CPU send PIO R/W to NIU, the checker is disabled\n"));
70 niu_no_active_chk_disable = 1;
71 break;
72 }
73 if (niu_sig_intf.niu_ncu_vld){
74 PR_ERROR(name, MON_ERR, psprintf ("NIU send PIO ACK or INT to PCU before CPU send PIO R/W to NIU! the checker is under :verif/env/fc/vera/niu_chk\n"));
75 }
76 if (niu_sig_intf.niu_sii_hdr_vld){
77 PR_ERROR(name, MON_ERR, psprintf ("NIU send DAM to SII before CPU send PIO R/W to NIU! the checker is under :verif/env/fc/vera/niu_chk \n"));
78 }
79 }
80}
81