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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: ncu_en_thrd_on_dis_core.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_NUCLEUS_ALSO | |
39 | #define MAIN_PAGE_HV_ALSO | |
40 | ||
41 | #include "hboot.s" | |
42 | #include "asi_s.h" | |
43 | ||
44 | .text | |
45 | .global main | |
46 | ||
47 | ||
48 | main: | |
49 | ta T_CHANGE_HPRIV | |
50 | ||
51 | get_th_id_o0: | |
52 | ta T_RD_THID | |
53 | wr %g0,ASI_CMP_CORE,%asi | |
54 | ||
55 | cmp %o1,0x0 | |
56 | be thrd_0 | |
57 | nop | |
58 | cmp %o1,0x8 | |
59 | be thrd_8 | |
60 | nop | |
61 | cmp %o1,0x9 | |
62 | be thrd_9 | |
63 | nop | |
64 | ba test_fail | |
65 | nop | |
66 | ||
67 | thrd_0: | |
68 | ! Disable all but core 1 | |
69 | setx 0x000000000000ff00,%g7,%g1 | |
70 | stxa %g1,[ASI_CMP_CORE_ENABLE]%asi | |
71 | ||
72 | ! Warm reset | |
73 | setx 0x8900000808,%g7,%g1 | |
74 | set 0x1,%g2 | |
75 | stx %g2,[%g1] | |
76 | ||
77 | halt: | |
78 | ba halt | |
79 | nop | |
80 | ||
81 | thrd_8: | |
82 | ! Enable threads on all other cores | |
83 | setx 0xffffffffffff02ff,%g7,%g1 | |
84 | stxa %g1,[ASI_CMP_CORE_RUNNING_RW]%asi | |
85 | ||
86 | ba halt | |
87 | nop | |
88 | ||
89 | thrd_9: | |
90 | ! Wait for a bit to see if other threads woke | |
91 | call sleep | |
92 | nop | |
93 | ||
94 | ba test_pass | |
95 | nop | |
96 | ||
97 | /****************************************************** | |
98 | * Subroutine code | |
99 | *******************************************************/ | |
100 | ||
101 | sleep: | |
102 | rd %tick,%l2 | |
103 | setx 0x0000000000000fff,%g7,%l1 | |
104 | add %l1,%l2,%l1 | |
105 | sleep_loop: | |
106 | rd %tick,%l2 | |
107 | cmp %l1,%l2 | |
108 | bpos %xcc,sleep_loop | |
109 | nop | |
110 | retl | |
111 | nop | |
112 | ||
113 | /****************************************************** | |
114 | * Exit code | |
115 | *******************************************************/ | |
116 | ||
117 | test_pass: | |
118 | EXIT_GOOD | |
119 | ||
120 | test_fail: | |
121 | EXIT_BAD | |
122 |