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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: hpv_calls.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 | #ident "@(#) hpv_calls.s 1.1 04/10/11 16:44:05" | |
39 | #include <sys/asm_linkage.h> | |
40 | ||
41 | #pragma ident "@(#) hpv_calls.s 1.1 04/10/11 16:44:05 SMI" | |
42 | ||
43 | /* | |
44 | * Hypervisor calls | |
45 | */ | |
46 | ||
47 | #include <sys/asm_linkage.h> | |
48 | #define HPV_CALL_TRAP 0x90 | |
49 | #define CONS_READ 0x60 | |
50 | #define CONS_WRITE 0x61 | |
51 | #define TOD_GET 0x50 | |
52 | #define MAP_PERM_ADDR 0x25 | |
53 | #define MMU_SET_INFOPTR 0x26 | |
54 | ||
55 | #define DISK_READ 0xf0 | |
56 | #define DISK_WRITE 0xf1 | |
57 | #define CPU_QCONF 0x14 | |
58 | #define HACK_XCALL 0xf6 /* XXX */ | |
59 | #define FAKE_INTR 0xf7 /* XXX */ | |
60 | #define CONS_STATUS 0xf8 | |
61 | #define CONS_SETINTR 0xf9 | |
62 | ||
63 | #if defined(lint) || defined(__lint) | |
64 | ||
65 | /*ARGSUSED*/ | |
66 | uint64_t | |
67 | hv_mmu_set_infoptr(uint64_t rmissarea) | |
68 | { return (0); } | |
69 | ||
70 | /*ARGSUSED*/ | |
71 | uint64_t | |
72 | hv_tod_get(void) | |
73 | { return (0); } | |
74 | ||
75 | uint64_t | |
76 | hv_ld_scratch0(void) | |
77 | { return (0); } | |
78 | ||
79 | /*ARGSUSED*/ | |
80 | void | |
81 | hv_st_scratch0(uint64_t v) | |
82 | { } | |
83 | ||
84 | /*ARGSUSED*/ | |
85 | int | |
86 | hv_mmu_map_perm_addr(void *vaddr, int ctx, uint64_t tte, int flags) | |
87 | { return (0); } | |
88 | ||
89 | /*ARGSUSED*/ | |
90 | int | |
91 | hv_cpu_qconf(int queue, uint64_t paddr, int size) | |
92 | { return (0); } | |
93 | ||
94 | int | |
95 | hv_fake_intr(void) | |
96 | { return (0); } | |
97 | ||
98 | #else /* lint || __lint */ | |
99 | ||
100 | #define ASI_SCRATCHPAD 0x20 /* XXX */ | |
101 | /* XXXQ - sun4v OBP/OS convention: va0x0/ASI_SCRATCHPAD contains miss area */ | |
102 | ||
103 | /* | |
104 | * XXX These do not belong here | |
105 | */ | |
106 | ENTRY(hv_ld_scratch0) | |
107 | retl | |
108 | ldxa [%g0]ASI_SCRATCHPAD, %o0 | |
109 | SET_SIZE(hv_ld_scratch0) | |
110 | ||
111 | ENTRY(hv_st_scratch0) | |
112 | retl | |
113 | stxa %o0, [%g0]ASI_SCRATCHPAD | |
114 | SET_SIZE(hv_st_scratch0) | |
115 | ||
116 | /* | |
117 | * Returns old infoptr on success, -1 on failure | |
118 | */ | |
119 | ENTRY(hv_mmu_set_infoptr) | |
120 | mov MMU_SET_INFOPTR, %o5 | |
121 | ta HPV_CALL_TRAP | |
122 | tst %o0 | |
123 | movz %xcc, %o1, %o0 | |
124 | retl | |
125 | movnz %xcc, -1, %o0 | |
126 | SET_SIZE(hv_mmu_set_infoptr) | |
127 | ||
128 | ENTRY(hv_debug) | |
129 | ta 0x70 | |
130 | retl | |
131 | nop | |
132 | SET_SIZE(hv_debug) | |
133 | ||
134 | /* | |
135 | * %o0 - disk offset | |
136 | * %o1 - target real address | |
137 | * %o2 - size | |
138 | */ | |
139 | ENTRY(hv_disk_read) | |
140 | mov DISK_READ, %o5 | |
141 | ta HPV_CALL_TRAP | |
142 | tst %o0 | |
143 | movz %xcc, %o1, %o0 | |
144 | retl | |
145 | movnz %xcc, -1, %o0 | |
146 | SET_SIZE(hv_disk_read) | |
147 | ||
148 | /* | |
149 | * %o0 - disk offset | |
150 | * %o1 - target real address | |
151 | * %o2 - size | |
152 | */ | |
153 | ENTRY(hv_disk_write) | |
154 | mov DISK_WRITE, %o5 | |
155 | ta HPV_CALL_TRAP | |
156 | tst %o0 | |
157 | movz %xcc, %o1, %o0 | |
158 | retl | |
159 | movnz %xcc, -1, %o0 | |
160 | SET_SIZE(hv_disk_write) | |
161 | ||
162 | /* | |
163 | * %o0 - character | |
164 | */ | |
165 | ENTRY(hv_cnputchar) | |
166 | ta T_CHANGE_PRIV | |
167 | mov CONS_WRITE, %o5 | |
168 | ta HPV_CALL_TRAP | |
169 | ta T_CHANGE_NONPRIV | |
170 | tst %o0 | |
171 | movz %xcc, %o1, %o0 | |
172 | retl | |
173 | movnz %xcc, -1, %o0 | |
174 | SET_SIZE(hv_cnputchar) | |
175 | ||
176 | /* | |
177 | * %o0 pointer to character buffer | |
178 | * return values: | |
179 | * 0 success | |
180 | * hv_errno failure | |
181 | * (int64_t)-1 BREAK | |
182 | */ | |
183 | ENTRY(hv_cngetchar) | |
184 | mov %o0, %o2 | |
185 | mov CONS_READ, %o5 | |
186 | ta HPV_CALL_TRAP | |
187 | brnz,a %o0, 1f ! failure, just return error | |
188 | mov 1, %o0 | |
189 | ||
190 | cmp %o1, -1 ! BREAK, return -1 | |
191 | be 1f | |
192 | mov %o1, %o0 | |
193 | ||
194 | stb %o1, [%o2] ! success, save character and return 0 | |
195 | mov 0, %o0 | |
196 | 1: | |
197 | retl | |
198 | nop | |
199 | SET_SIZE(hv_cngetchar) | |
200 | ||
201 | /* | |
202 | * %o0 pointer to character buffer | |
203 | * return values: | |
204 | * 0 success | |
205 | * hv_errno failure | |
206 | * (int64_t)-1 BREAK | |
207 | */ | |
208 | ENTRY(hv_cngetstatus) | |
209 | mov %o0, %o2 | |
210 | mov CONS_STATUS, %o5 | |
211 | ta HPV_CALL_TRAP | |
212 | brnz,a %o0, 1f ! failure, just return error | |
213 | mov 1, %o0 | |
214 | ||
215 | stb %o1, [%o2] ! success, save character and return 0 | |
216 | mov 0, %o0 | |
217 | 1: | |
218 | retl | |
219 | nop | |
220 | SET_SIZE(hv_cngetstatus) | |
221 | ||
222 | /* | |
223 | * %o0 - character | |
224 | */ | |
225 | ENTRY(hv_cnsetintr) | |
226 | mov CONS_SETINTR, %o5 | |
227 | ta HPV_CALL_TRAP | |
228 | tst %o0 | |
229 | movz %xcc, %o1, %o0 | |
230 | retl | |
231 | movnz %xcc, -1, %o0 | |
232 | SET_SIZE(hv_cnsetintr) | |
233 | ||
234 | ENTRY(hv_tod_get) | |
235 | mov TOD_GET, %o5 | |
236 | ta HPV_CALL_TRAP | |
237 | tst %o0 | |
238 | movz %xcc, %o1, %o0 | |
239 | retl | |
240 | movnz %xcc, -1, %o0 | |
241 | SET_SIZE(hv_tod_get) | |
242 | ||
243 | ||
244 | /* | |
245 | * Map permanent address | |
246 | * arg0 vaddr (%o0) | |
247 | * arg1 context (%o1) | |
248 | * arg2 tte (%o2) | |
249 | * arg3 flags (%o3) 0x1=d 0x2=i | |
250 | */ | |
251 | ENTRY(hv_mmu_map_perm_addr) | |
252 | mov MAP_PERM_ADDR, %o5 | |
253 | ta HPV_CALL_TRAP | |
254 | tst %o0 | |
255 | movz %xcc, %o1, %o0 | |
256 | retl | |
257 | movnz %xcc, -1, %o0 | |
258 | SET_SIZE(hv_mmu_map_perm_addr) | |
259 | ||
260 | ||
261 | /* | |
262 | * CPU Q Configure | |
263 | * arg0 queue (%o0) | |
264 | * arg1 Base address RA (%o1) | |
265 | * arg2 Size (%o2) | |
266 | */ | |
267 | ENTRY(hv_cpu_qconf) | |
268 | mov CPU_QCONF, %o5 | |
269 | ta HPV_CALL_TRAP | |
270 | retl | |
271 | nop | |
272 | SET_SIZE(hv_cpu_qconf) | |
273 | ||
274 | /* | |
275 | * XXXQ temporary | |
276 | */ | |
277 | ENTRY(hv_fake_intr) | |
278 | mov FAKE_INTR, %o5 | |
279 | ta HPV_CALL_TRAP | |
280 | retl | |
281 | nop | |
282 | SET_SIZE(hv_fake_intr) | |
283 | ||
284 | ENTRY(hv_hack_xcall) | |
285 | mov HACK_XCALL, %o5 | |
286 | ta HPV_CALL_TRAP | |
287 | retl | |
288 | nop | |
289 | SET_SIZE(hv_hack_xcall) | |
290 | ||
291 | ||
292 | /* | |
293 | * %o0 - addr, %o1 data | |
294 | */ | |
295 | ENTRY(hv_poke_little) | |
296 | ta T_CHANGE_PRIV | |
297 | mov VPCI_IO_POKE, %o5 | |
298 | ta HPV_CALL_TRAP | |
299 | ta T_CHANGE_NONPRIV | |
300 | retl | |
301 | SET_SIZE(hv_poke_little) | |
302 | ||
303 | /* | |
304 | * %o0 - addr, %o0 returned w/ data | |
305 | */ | |
306 | ENTRY(hv_peek_little) | |
307 | ta T_CHANGE_PRIV | |
308 | mov VPCI_IO_PEEK, %o5 | |
309 | ta HPV_CALL_TRAP | |
310 | ta T_CHANGE_NONPRIV | |
311 | retl | |
312 | SET_SIZE(hv_peek_little) | |
313 | ||
314 | /* | |
315 | * %o0 - addr, %o1 data | |
316 | */ | |
317 | ENTRY(hv_poke) | |
318 | ta T_CHANGE_PRIV | |
319 | mov IO_POKE, %o5 | |
320 | ta HPV_CALL_TRAP | |
321 | ta T_CHANGE_NONPRIV | |
322 | retl | |
323 | SET_SIZE(hv_poke) | |
324 | ||
325 | /* | |
326 | * %o0 - addr, %o0 returned w/ data | |
327 | */ | |
328 | ENTRY(hv_peek) | |
329 | ta T_CHANGE_PRIV | |
330 | mov IO_PEEK, %o5 | |
331 | ta HPV_CALL_TRAP | |
332 | ta T_CHANGE_NONPRIV | |
333 | retl | |
334 | SET_SIZE(hv_peek) | |
335 | ||
336 | #endif /* lint || __lint */ |