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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: tso_n1_cross_mod203.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_BASE_DATA_ADDR 0x160000 | |
39 | #define MAIN_BASE_TEXT_ADDR 0x150000 | |
40 | #define MAIN_BASE_DATA_ADDR_RA 0x100160000 | |
41 | #define MAIN_BASE_TEXT_ADDR_RA 0x100150000 | |
42 | ||
43 | #define USER_PAGE_CUSTOM_MAP | |
44 | #include "hboot.s" | |
45 | ||
46 | SECTION .MAIN TEXT_VA=0x150000, DATA_VA=0x160000 | |
47 | ||
48 | attr_text { | |
49 | Name = .MAIN, | |
50 | VA=MAIN_BASE_TEXT_ADDR, | |
51 | RA=MAIN_BASE_TEXT_ADDR_RA, | |
52 | PA=ra2pa(MAIN_BASE_TEXT_ADDR_RA,0), | |
53 | part_0_ctx_nonzero_tsb_config_0, | |
54 | TTE_G=0, TTE_Context=PCONTEXT, TTE_V=1, TTE_Size=0, TTE_NFO=0, | |
55 | TTE_IE=0, TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, | |
56 | TTE_L=0, TTE_CP=1, TTE_CV=1, TTE_E=0, TTE_EP=1, TTE_P=0, TTE_W=1 | |
57 | } | |
58 | attr_data { | |
59 | Name = .MAIN, | |
60 | VA=MAIN_BASE_DATA_ADDR, | |
61 | RA=MAIN_BASE_DATA_ADDR_RA, | |
62 | PA=ra2pa(MAIN_BASE_DATA_ADDR_RA,0), | |
63 | part_0_ctx_nonzero_tsb_config_0, | |
64 | TTE_G=0, TTE_Context=PCONTEXT, TTE_V=1, TTE_Size=0, TTE_NFO=0, | |
65 | TTE_IE=0, TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, | |
66 | TTE_L=0, TTE_CP=1, TTE_CV=1, TTE_E=0, TTE_P=0, TTE_W=1 | |
67 | } | |
68 | ||
69 | .text | |
70 | .global main | |
71 | main: | |
72 | clr %l0 | |
73 | ||
74 | th_fork(th_main,%l0) | |
75 | ||
76 | ||
77 | ! this thread modfifies the code | |
78 | !=============================== | |
79 | th_main_0: | |
80 | ||
81 | !-------------------------------------------------------------------- | |
82 | setx exit_code1,%l0, %l1 ! pointers... | |
83 | setx wait_loop1, %l0, %l3 ! | |
84 | ld [%l3], %o6 ! load the old instruction in D$ | |
85 | ld [%l1], %o6 ! load the new instructions | |
86 | ld [%l1+4], %o7 ! in o6 and o7 | |
87 | mov %o6, %i2 | |
88 | add %l3, 8, %l4 | |
89 | ld [%l3 + 8],%i4 ! use a cas and a store to modify | |
90 | cas [%l4], %i4, %i2 ! two instructions | |
91 | st %o7, [%l3 + 4] ! the new instruction is a jump | |
92 | !-------------------------------------------------------------------- | |
93 | setx exit_code2,%l0, %l1 ! pointers... | |
94 | setx wait_loop2, %l0, %l3 ! | |
95 | ld [%l1], %o6 ! | |
96 | ld [%l1+4], %o7 ! | |
97 | mov %o6, %i2 | |
98 | add %l3, 8, %l4 | |
99 | ld [%l3 + 8],%i4 | |
100 | cas [%l4], %i4, %i2 | |
101 | st %o7, [%l3 + 4] ! store the jump | |
102 | !-------------------------------------------------------------------- | |
103 | setx exit_code3,%l0, %l1 ! pointers... | |
104 | setx wait_loop3, %l0, %l3 ! | |
105 | ld [%l3], %o6 ! | |
106 | ld [%l1], %o6 ! | |
107 | ld [%l1+4], %o7 ! | |
108 | mov %o6, %i2 | |
109 | add %l3, 8, %l4 | |
110 | ld [%l3 + 8],%i4 | |
111 | cas [%l4], %i4, %i2 | |
112 | st %o7, [%l3 + 4] ! store the jump | |
113 | !-------------------------------------------------------------------- | |
114 | setx exit_code4,%l0, %l1 ! pointers... | |
115 | setx wait_loop4, %l0, %l3 ! | |
116 | ld [%l1], %o6 ! | |
117 | ld [%l1+4], %o7 ! | |
118 | mov %o6, %i2 | |
119 | add %l3, 8, %l4 | |
120 | ld [%l3 + 8],%i4 | |
121 | cas [%l4], %i4, %i2 | |
122 | st %o7, [%l3 + 4] ! store the jump | |
123 | !-------------------------------------------------------------------- | |
124 | setx exit_code5,%l0, %l1 ! pointers... | |
125 | setx wait_loop5, %l0, %l3 ! | |
126 | ld [%l3], %o6 ! | |
127 | ld [%l1], %o6 ! | |
128 | ld [%l1+4], %o7 ! | |
129 | mov %o6, %i2 | |
130 | add %l3, 8, %l4 | |
131 | ld [%l3 + 8],%i4 | |
132 | cas [%l4], %i4, %i2 | |
133 | st %o7, [%l3 + 4] ! store the jump | |
134 | !-------------------------------------------------------------------- | |
135 | setx exit_code6,%l0, %l1 ! pointers... | |
136 | setx wait_loop6, %l0, %l3 ! | |
137 | ld [%l1], %o6 ! | |
138 | ld [%l1+4], %o7 ! | |
139 | mov %o6, %i2 | |
140 | add %l3, 8, %l4 | |
141 | ld [%l3 + 8],%i4 | |
142 | cas [%l4], %i4, %i2 | |
143 | st %o7, [%l3 + 4] ! store the jump | |
144 | !-------------------------------------------------------------------- | |
145 | setx exit_code7,%l0, %l1 ! pointers... | |
146 | setx wait_loop7, %l0, %l3 ! | |
147 | ld [%l3], %o6 ! | |
148 | ld [%l1], %o6 ! | |
149 | ld [%l1+4], %o7 ! | |
150 | mov %o6, %i2 | |
151 | add %l3, 8, %l4 | |
152 | ld [%l3 + 8],%i4 | |
153 | cas [%l4], %i4, %i2 | |
154 | st %o7, [%l3 + 4] ! store the jump | |
155 | !-------------------------------------------------------------------- | |
156 | setx exit_code8,%l0, %l1 ! pointers... | |
157 | setx wait_loop8, %l0, %l3 ! | |
158 | ld [%l1], %o6 ! | |
159 | ld [%l1+4], %o7 ! | |
160 | mov %o6, %i2 | |
161 | add %l3, 8, %l4 | |
162 | ld [%l3 + 8],%i4 | |
163 | cas [%l4], %i4, %i2 | |
164 | st %o7, [%l3 + 4] ! store the jump | |
165 | !-------------------------------------------------------------------- | |
166 | setx exit_code9,%l0, %l1 ! pointers... | |
167 | setx wait_loop9, %l0, %l3 ! | |
168 | ld [%l3], %o6 ! | |
169 | ld [%l1], %o6 ! | |
170 | ld [%l1+4], %o7 ! | |
171 | mov %o6, %i2 | |
172 | add %l3, 8, %l4 | |
173 | ld [%l3 + 8],%i4 | |
174 | cas [%l4], %i4, %i2 | |
175 | st %o7, [%l3 + 4] ! store the jump | |
176 | !-------------------------------------------------------------------- | |
177 | setx exit_codea,%l0, %l1 ! pointers... | |
178 | setx wait_loopa, %l0, %l3 ! | |
179 | ld [%l1], %o6 ! | |
180 | ld [%l1+4], %o7 ! | |
181 | mov %o6, %i2 | |
182 | add %l3, 8, %l4 | |
183 | ld [%l3 + 8],%i4 | |
184 | cas [%l4], %i4, %i2 | |
185 | st %o7, [%l3 + 4] ! store the jump | |
186 | !-------------------------------------------------------------------- | |
187 | setx exit_codeb,%l0, %l1 ! pointers... | |
188 | setx wait_loopb, %l0, %l3 ! | |
189 | ld [%l3], %o6 ! | |
190 | ld [%l1], %o6 ! | |
191 | ld [%l1+4], %o7 ! | |
192 | mov %o6, %i2 | |
193 | add %l3, 8, %l4 | |
194 | ld [%l3 + 8],%i4 | |
195 | cas [%l4], %i4, %i2 | |
196 | st %o7, [%l3 + 4] ! store the jump | |
197 | ba good_end | |
198 | nop | |
199 | !-------------------------------------------------------------------- | |
200 | ||
201 | ! these are the receivers | |
202 | !------------------------ | |
203 | .align 0x4 | |
204 | th_main_1: | |
205 | th_main_4: | |
206 | ||
207 | !-------------------------------------------------------------- | |
208 | set goon1, %i0 | |
209 | set 0x0, %i1 | |
210 | wait_loop1: ! wait | |
211 | nop ! this will be replaced | |
212 | nop ! this too | |
213 | nop | |
214 | ba wait_loop1 | |
215 | nop | |
216 | goon1: | |
217 | subcc %i1, 1, %i1 ! was the new instruction the right one? | |
218 | bne bad_end | |
219 | nop | |
220 | set 0x0, %i1 | |
221 | set goon2, %i0 | |
222 | ba wait_loop2 | |
223 | nop | |
224 | !-------------------------------------------------------------- | |
225 | wait_loop2: ! wait | |
226 | nop ! this will be replaced | |
227 | nop ! this too | |
228 | nop | |
229 | ba wait_loop2 | |
230 | nop | |
231 | goon2: | |
232 | subcc %i1, 1, %i1 | |
233 | bne bad_end | |
234 | nop | |
235 | set 0x0, %i1 | |
236 | set goon3, %i0 | |
237 | ba wait_loop3 | |
238 | nop | |
239 | !-------------------------------------------------------------- | |
240 | wait_loop3: ! wait | |
241 | nop ! this will be replaced | |
242 | nop ! this too | |
243 | nop | |
244 | ba wait_loop3 | |
245 | nop | |
246 | goon3: | |
247 | subcc %i1, 1, %i1 | |
248 | bne bad_end | |
249 | nop | |
250 | set 0x0, %i1 | |
251 | set goon4, %i0 | |
252 | ba wait_loop4 | |
253 | nop | |
254 | !-------------------------------------------------------------- | |
255 | .align 0x4 | |
256 | wait_loop4: ! wait | |
257 | nop ! this will be replaced | |
258 | nop ! this too | |
259 | nop | |
260 | ba wait_loop4 | |
261 | nop | |
262 | goon4: | |
263 | subcc %i1, 1, %i1 | |
264 | bne bad_end | |
265 | nop | |
266 | set 0x0, %i1 | |
267 | set goon5, %i0 | |
268 | ba wait_loop5 | |
269 | nop | |
270 | !-------------------------------------------------------------- | |
271 | .align 0x4 | |
272 | wait_loop5: ! wait | |
273 | nop ! this will be replaced | |
274 | nop ! this too | |
275 | nop | |
276 | ba wait_loop5 | |
277 | nop | |
278 | goon5: | |
279 | subcc %i1, 1, %i1 | |
280 | bne bad_end | |
281 | nop | |
282 | set 0x0, %i1 | |
283 | set goon6, %i0 | |
284 | ba wait_loop6 | |
285 | nop | |
286 | !-------------------------------------------------------------- | |
287 | .align 0x4 | |
288 | wait_loop6: ! wait | |
289 | nop ! this will be replaced | |
290 | nop ! this too | |
291 | nop | |
292 | ba wait_loop6 | |
293 | nop | |
294 | goon6: | |
295 | subcc %i1, 1, %i1 | |
296 | bne bad_end | |
297 | nop | |
298 | set 0x0, %i1 | |
299 | set goon7, %i0 | |
300 | ba wait_loop7 | |
301 | nop | |
302 | !-------------------------------------------------------------- | |
303 | .align 0x4 | |
304 | wait_loop7: ! wait | |
305 | nop ! this will be replaced | |
306 | nop ! this too | |
307 | nop | |
308 | ba wait_loop7 | |
309 | nop | |
310 | goon7: | |
311 | subcc %i1, 1, %i1 | |
312 | bne bad_end | |
313 | nop | |
314 | set goon8, %i0 | |
315 | ba wait_loop8 | |
316 | nop | |
317 | !-------------------------------------------------------------- | |
318 | .align 0x4 | |
319 | wait_loop8: ! wait | |
320 | nop ! this will be replaced | |
321 | nop ! this too | |
322 | nop | |
323 | ba wait_loop8 | |
324 | nop | |
325 | goon8: | |
326 | subcc %i1, 1, %i1 | |
327 | bne bad_end | |
328 | nop | |
329 | set 0x0, %i1 | |
330 | set goon9, %i0 | |
331 | ba wait_loop9 | |
332 | nop | |
333 | !-------------------------------------------------------------- | |
334 | .align 0x4 | |
335 | wait_loop9: ! wait | |
336 | nop ! this will be replaced | |
337 | nop ! this too | |
338 | nop | |
339 | ba wait_loop9 | |
340 | nop | |
341 | goon9: | |
342 | subcc %i1, 1, %i1 | |
343 | bne bad_end | |
344 | nop | |
345 | set 0x0, %i1 | |
346 | set goona, %i0 | |
347 | ba wait_loopa | |
348 | nop | |
349 | !-------------------------------------------------------------- | |
350 | .align 0x4 | |
351 | wait_loopa: ! wait | |
352 | nop ! this too | |
353 | nop ! this too | |
354 | nop | |
355 | ba wait_loopa | |
356 | nop | |
357 | goona: | |
358 | subcc %i1, 1, %i1 | |
359 | bne bad_end | |
360 | nop | |
361 | set 0x0, %i1 | |
362 | set goonb, %i0 | |
363 | ba wait_loopb | |
364 | nop | |
365 | !-------------------------------------------------------------- | |
366 | wait_loopb: ! wait | |
367 | nop ! this too | |
368 | nop ! this too | |
369 | nop | |
370 | ba wait_loopb | |
371 | nop | |
372 | goonb: | |
373 | subcc %i1, 1, %i1 | |
374 | bne bad_end | |
375 | nop | |
376 | !-------------------------------------------------------------- | |
377 | ||
378 | good_end: | |
379 | ta T_GOOD_TRAP | |
380 | bad_end: | |
381 | ta T_BAD_TRAP | |
382 | ||
383 | !-------------------------------------------------------------- | |
384 | .align 0x4 | |
385 | exit_code1: | |
386 | set 0x1, %i1 | |
387 | jmpl %i0,%o7 | |
388 | set 0x0, %i1 | |
389 | !-------------------------------------------------------------- | |
390 | .align 0x4 | |
391 | exit_code2: | |
392 | set 0x1, %i1 | |
393 | jmpl %i0,%o7 | |
394 | set 0x0, %i1 | |
395 | !-------------------------------------------------------------- | |
396 | .align 0x4 | |
397 | exit_code3: | |
398 | set 0x1, %i1 | |
399 | jmpl %i0,%o7 | |
400 | set 0x0, %i1 | |
401 | !-------------------------------------------------------------- | |
402 | .align 0x4 | |
403 | exit_code4: | |
404 | set 0x1, %i1 | |
405 | jmpl %i0,%o7 | |
406 | set 0x0, %i1 | |
407 | !-------------------------------------------------------------- | |
408 | .align 0x4 | |
409 | exit_code5: | |
410 | set 0x1, %i1 | |
411 | jmpl %i0,%o7 | |
412 | set 0x0, %i1 | |
413 | !-------------------------------------------------------------- | |
414 | .align 0x4 | |
415 | exit_code6: | |
416 | set 0x1, %i1 | |
417 | jmpl %i0,%o7 | |
418 | set 0x0, %i1 | |
419 | !-------------------------------------------------------------- | |
420 | .align 0x4 | |
421 | exit_code7: | |
422 | set 0x1, %i1 | |
423 | jmpl %i0,%o7 | |
424 | set 0x0, %i1 | |
425 | !-------------------------------------------------------------- | |
426 | .align 0x4 | |
427 | exit_code8: | |
428 | set 0x1, %i1 | |
429 | jmpl %i0,%o7 | |
430 | set 0x0, %i1 | |
431 | !-------------------------------------------------------------- | |
432 | .align 0x4 | |
433 | exit_code9: | |
434 | set 0x1, %i1 | |
435 | jmpl %i0,%o7 | |
436 | set 0x0, %i1 | |
437 | !-------------------------------------------------------------- | |
438 | .align 0x4 | |
439 | exit_codea: | |
440 | set 0x1, %i1 | |
441 | jmpl %i0,%o7 | |
442 | set 0x0, %i1 | |
443 | !-------------------------------------------------------------- | |
444 | .align 0x4 | |
445 | exit_codeb: | |
446 | set 0x1, %i1 | |
447 | jmpl %i0,%o7 | |
448 | set 0x0, %i1 | |
449 | !-------------------------------------------------------------- | |
450 | ||
451 | .data | |
452 | .global ready | |
453 | ready: | |
454 | .word 0x0 | |
455 | ||
456 | .end | |
457 |