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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: tso_n1_false_sharing_8c_veryshort.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 data_base_reg %o1 | |
39 | #define to_reg %o2 | |
40 | #define my_id_reg %o3 | |
41 | #define test_reg %o4 | |
42 | #define global_cnt_reg %o5 | |
43 | ||
44 | #define TIMEOUT 0x1000 | |
45 | #define ITERATIONS 0x1 | |
46 | ||
47 | #include "hboot.s" | |
48 | ||
49 | .global main | |
50 | ||
51 | main: | |
52 | set ITERATIONS, global_cnt_reg | |
53 | mov %g0, my_id_reg | |
54 | ||
55 | th_fork(th_main,%l0) | |
56 | ||
57 | th_main_0: | |
58 | add my_id_reg, 0x00, my_id_reg ! this is my ID address | |
59 | ba go; nop | |
60 | th_main_1: | |
61 | add my_id_reg, 0x04, my_id_reg | |
62 | ba go; nop | |
63 | th_main_2: | |
64 | add my_id_reg, 0x08, my_id_reg | |
65 | ba go; nop | |
66 | th_main_3: | |
67 | add my_id_reg, 0x0c, my_id_reg | |
68 | ba go; nop | |
69 | th_main_4: | |
70 | add my_id_reg, 0x10, my_id_reg | |
71 | ba go; nop | |
72 | th_main_5: | |
73 | add my_id_reg, 0x14, my_id_reg | |
74 | ba go; nop | |
75 | th_main_6: | |
76 | add my_id_reg, 0x18, my_id_reg | |
77 | ba go; nop | |
78 | th_main_7: | |
79 | add my_id_reg, 0x1c, my_id_reg | |
80 | ba go; nop | |
81 | th_main_8: | |
82 | add my_id_reg, 0x20, my_id_reg | |
83 | ba go; nop | |
84 | th_main_9: | |
85 | add my_id_reg, 0x24, my_id_reg | |
86 | ba go; nop | |
87 | th_main_10: | |
88 | add my_id_reg, 0x28, my_id_reg | |
89 | ba go; nop | |
90 | th_main_11: | |
91 | add my_id_reg, 0x2c, my_id_reg | |
92 | ba go; nop | |
93 | th_main_12: | |
94 | add my_id_reg, 0x30, my_id_reg | |
95 | ba go; nop | |
96 | th_main_13: | |
97 | add my_id_reg, 0x34, my_id_reg | |
98 | ba go; nop | |
99 | th_main_14: | |
100 | add my_id_reg, 0x38, my_id_reg | |
101 | ba go; nop | |
102 | th_main_15: | |
103 | add my_id_reg, 0x3c, my_id_reg | |
104 | ba go; nop | |
105 | th_main_16: | |
106 | add my_id_reg, 0x40, my_id_reg | |
107 | ba go; nop | |
108 | th_main_17: | |
109 | add my_id_reg, 0x44, my_id_reg | |
110 | ba go; nop | |
111 | th_main_18: | |
112 | add my_id_reg, 0x48, my_id_reg | |
113 | ba go; nop | |
114 | th_main_19: | |
115 | add my_id_reg, 0x4c, my_id_reg | |
116 | ba go; nop | |
117 | th_main_20: | |
118 | add my_id_reg, 0x50, my_id_reg | |
119 | ba go; nop | |
120 | th_main_21: | |
121 | add my_id_reg, 0x54, my_id_reg | |
122 | ba go; nop | |
123 | th_main_22: | |
124 | add my_id_reg, 0x58, my_id_reg | |
125 | ba go; nop | |
126 | th_main_23: | |
127 | add my_id_reg, 0x5c, my_id_reg | |
128 | ba go; nop | |
129 | th_main_24: | |
130 | add my_id_reg, 0x60, my_id_reg | |
131 | ba go; nop | |
132 | th_main_25: | |
133 | add my_id_reg, 0x64, my_id_reg | |
134 | ba go; nop | |
135 | th_main_26: | |
136 | add my_id_reg, 0x68, my_id_reg | |
137 | ba go; nop | |
138 | th_main_27: | |
139 | add my_id_reg, 0x6c, my_id_reg | |
140 | ba go; nop | |
141 | th_main_28: | |
142 | add my_id_reg, 0x70, my_id_reg | |
143 | ba go; nop | |
144 | th_main_29: | |
145 | add my_id_reg, 0x74, my_id_reg | |
146 | ba go; nop | |
147 | th_main_30: | |
148 | add my_id_reg, 0x78, my_id_reg | |
149 | ba go; nop | |
150 | th_main_31: | |
151 | add my_id_reg, 0x7c, my_id_reg | |
152 | ba go; nop | |
153 | ||
154 | go: | |
155 | setx protected_area, %l0, data_base_reg ! the data area | |
156 | ||
157 | set 4, %l0 ! count | |
158 | add my_id_reg, data_base_reg, data_base_reg | |
159 | add my_id_reg, data_base_reg, %i1 | |
160 | loop1: | |
161 | st %i1, [data_base_reg] ! store my ID in there | |
162 | inc %i1 | |
163 | deccc %l0 | |
164 | bne loop1 ! repeat | |
165 | nop | |
166 | ||
167 | dec %i1 | |
168 | ld [data_base_reg], %l1 ! read the data area | |
169 | subcc %l1, %i1, %l1 ! should be same as i1 | |
170 | bne bad_end | |
171 | nop | |
172 | ||
173 | check_done: | |
174 | deccc global_cnt_reg | |
175 | be good_end | |
176 | nop | |
177 | ba go | |
178 | nop | |
179 | ||
180 | good_end: | |
181 | ta T_GOOD_TRAP | |
182 | bad_end: | |
183 | ta T_BAD_TRAP | |
184 | ||
185 | !========================== | |
186 | ||
187 | .data | |
188 | .global protected_area | |
189 | protected_area: | |
190 | .word 0xbeef | |
191 | .skip 0x1000 | |
192 | .word 0xbeef | |
193 | ||
194 | .end |