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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: pepintx.s | |
5 | * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved | |
6 | * 4150 Network Circle, Santa Clara, California 95054, U.S.A. | |
7 | * | |
8 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; version 2 of the License. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | * For the avoidance of doubt, and except that if any non-GPL license | |
24 | * choice is available it will apply instead, Sun elects to use only | |
25 | * the General Public License version 2 (GPLv2) at this time for any | |
26 | * software where a choice of GPL license versions is made | |
27 | * available with the language indicating that GPLv2 or any later version | |
28 | * may be used, or where a choice of which version of the GPL is applied is | |
29 | * otherwise unspecified. | |
30 | * | |
31 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
32 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
33 | * have any questions. | |
34 | * | |
35 | * | |
36 | * ========== Copyright Header End ============================================ | |
37 | */ | |
38 | #define MAIN_PAGE_HV_ALSO | |
39 | #define DBG_CONFIG_PA 0x8600000000 | |
40 | #define DBG_REPEAT_VAL 0x8000000000000005 | |
41 | ||
42 | #ifndef DMAEPTADDR | |
43 | #define DMAEPTADDR 0x0 | |
44 | #endif | |
45 | ||
46 | #ifndef DMAEPTCNT | |
47 | #define DMAEPTCNT 0x0 | |
48 | #endif | |
49 | ||
50 | ! Pick a value that pauses some, but not for the full duration of | |
51 | ! the operation. I think the value below is about one quarter of | |
52 | ! the full operation with four engines running. | |
53 | #ifndef DMAEPTPAUSE | |
54 | #define DMAEPTPAUSE ((DMAEPTCNT*4)/4) | |
55 | #endif | |
56 | ||
57 | #ifndef DMAEPTENGCNT | |
58 | #define DMAEPTENGCNT 1 | |
59 | #endif | |
60 | ||
61 | #define DMAEPTMWTO ((DMAEPTCNT/0x500)*DMAEPTENGCNT)+2 | |
62 | #define DMAEPTMRTO (DMAEPTCNT/0x140)+2 | |
63 | ||
64 | #include "hboot.s" | |
65 | #include "pep_util.s" | |
66 | ||
67 | /************************************************************************ | |
68 | Test case code start | |
69 | ************************************************************************/ | |
70 | .text | |
71 | .global main | |
72 | ||
73 | main: | |
74 | ta T_CHANGE_HPRIV | |
75 | nop | |
76 | ||
77 | thread_0: | |
78 | ! | |
79 | ! Thread 0 Start | |
80 | ! | |
81 | ||
82 | setx DMAEPTENGCNT, %l0, %l1 ! Initial engine number | |
83 | Setup: | |
84 | setx DMAEPTADDR, %l0, %o1 | |
85 | setx 0x6990, %l0, %o2 | |
86 | setx 0x10000, %l0, %o3 ! Generate INT A interrupt at the end | |
87 | setx 0x0, %l0, %o4 ! Packet size of 0, hope this works. | |
88 | call SetupDMA | |
89 | mov %l1, %o0 ! Engine number | |
90 | ||
91 | ! Now start an MW | |
92 | setx DMAEPTENGCNT, %l0, %l1 ! Initial engine number | |
93 | setx 0x02000000 + DMAEPTCNT, %l0, %o1 ! MW by device | |
94 | Start: | |
95 | call InitiateDMA | |
96 | mov %l1, %o0 ! Engine number | |
97 | ||
98 | ! Now wait for engine to finish | |
99 | setx DMAEPTENGCNT, %l0, %l1 ! Initial engine number | |
100 | setx DMAEPTMWTO, %l0, %o1 | |
101 | Wait: | |
102 | call WaitOnDMA | |
103 | mov %l1, %o0 ! Engine number | |
104 | brnz %o0, test_failed | |
105 | ||
106 | test_passed: | |
107 | EXIT_GOOD | |
108 | nop | |
109 | ||
110 | test_failed: | |
111 | EXIT_BAD | |
112 | nop |