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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: tm_blaze_ext.cc | |
4 | // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
5 | // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. | |
6 | // | |
7 | // The above named program is free software; you can redistribute it and/or | |
8 | // modify it under the terms of the GNU General Public | |
9 | // License version 2 as published by the Free Software Foundation. | |
10 | // | |
11 | // The above named program is distributed in the hope that it will be | |
12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | // General Public License for more details. | |
15 | // | |
16 | // You should have received a copy of the GNU General Public | |
17 | // License along with this work; if not, write to the Free Software | |
18 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
19 | // | |
20 | // ========== Copyright Header End ============================================ | |
21 | /* | |
22 | * Copyright (C) 1991, 2001 Sun Microsystems, Inc. | |
23 | * All rights reserved. | |
24 | */ | |
25 | #pragma ident "@(#)1.4 01/11/06 tm_blaze_ext.cc" | |
26 | ||
27 | /* | |
28 | * Copyright (c) 1989, Sun Microsystems, Inc. All Rights Reserved. Sun | |
29 | * considers its source code as an unpublished, proprietary trade secret, and | |
30 | * it is available only under strict license provisions. This copyright | |
31 | * notice is placed here only to protect Sun in the event the source is | |
32 | * deemed a published work. Disassembly, decompilation, or other means of | |
33 | * reducing the object code to human readable form is prohibited by the | |
34 | * license agreement under which this code is provided to the user or company | |
35 | * in possession of this copy | |
36 | * | |
37 | * RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the | |
38 | * Government is subject to restrictions as set forth in subparagraph | |
39 | * (c) (1) (ii) of the Rights in Technical Data and Computer Software clause | |
40 | * at DFARS 52.227-7013 and in similar clauses in the FAR and NASA FAR | |
41 | * Supplement | |
42 | */ | |
43 | ||
44 | #include <sys/types.h> | |
45 | #include <alloca.h> | |
46 | #include <assert.h> | |
47 | #include <stdio.h> | |
48 | #include <stdlib.h> | |
49 | #include <string.h> | |
50 | #include <synch.h> | |
51 | #include <dlfcn.h> | |
52 | ||
53 | #include "types.h" | |
54 | #include "blaze_globals.h" | |
55 | #include "system.h" | |
56 | ||
57 | typedef void* TM_OPAQUE_DATA; | |
58 | #include "tracemod.h" | |
59 | ||
60 | #include "ui.h" | |
61 | #include "tm_impl.h" | |
62 | ||
63 | ////////////////////////////////////////////////////////// | |
64 | ||
65 | void *TM_get_blaze_data (void * handle) | |
66 | { | |
67 | return ((Ldm*)handle)->blaze_data; | |
68 | } | |
69 | ||
70 | ////////////////////////////////////////////////////////// | |
71 | ||
72 | void *TM_get_client_data (void * handle) | |
73 | { | |
74 | Ldm *pldm = (Ldm*)handle; | |
75 | return pldm->client_data; | |
76 | } | |
77 | ||
78 | ////////////////////////////////////////////////////////// | |
79 | ||
80 | void *TM_get_asi_client_data (void * handle) | |
81 | { | |
82 | Ldm *pldm = (Ldm*)handle; | |
83 | return pldm->asi_client_data; | |
84 | } | |
85 | ||
86 | ////////////////////////////////////////////////////////// | |
87 | ||
88 | ||
89 | char *TM_get_name (void * handle) | |
90 | { | |
91 | Ldm *pldm = (Ldm*)handle; | |
92 | return pldm->name; | |
93 | } | |
94 | ||
95 | ////////////////////////////////////////////////////////// | |
96 | ||
97 | bool_t TM_is_device () | |
98 | { | |
99 | LdmNode * pnode; | |
100 | for (pnode=head_ldm; pnode!=NULL; pnode=pnode->Next()) { | |
101 | Ldm *pldm = pnode->GetData(); | |
102 | if (pldm->type == TM_TYPE_EXT_DEVICE) { | |
103 | return TRUE; | |
104 | } | |
105 | } | |
106 | return FALSE; | |
107 | } | |
108 | ||
109 | ////////////////////////////////////////////////////////// | |
110 | ||
111 | tracemod_t *TM_get_mod (void * handle) | |
112 | { | |
113 | ||
114 | LdmNode *pnode = (LdmNode*) handle; | |
115 | return pnode->GetData (); | |
116 | } | |
117 | ||
118 | ////////////////////////////////////////////////////////// | |
119 | ||
120 | void *TM_getnext_ext (void * handle, uint32_t mode) | |
121 | { | |
122 | LdmNode *pnode = (LdmNode*)handle; | |
123 | Ldm *pldm; | |
124 | ||
125 | if (pnode == NULL) { | |
126 | pnode = (LdmNode*)head_spec_ldm; | |
127 | } | |
128 | else { | |
129 | pnode = pnode->Next(); | |
130 | } | |
131 | ||
132 | for (;pnode;pnode = pnode->Next()) { | |
133 | pldm = pnode->GetData (); | |
134 | if (pldm->mode & mode) { | |
135 | return pnode; | |
136 | } | |
137 | } | |
138 | return NULL; | |
139 | } | |
140 | ||
141 | ////////////////////////////////////////////////////////// | |
142 | // Internal API routine : | |
143 | // Is used to bind a MODULE with specific opaque data | |
144 | // consealed inside of other BLAZE subsystem (SCHIZO for instance) | |
145 | // | |
146 | void TM_include_ext (void * io_module, void *local_handle) | |
147 | { | |
148 | Ldm *pldm = (Ldm*)io_module; | |
149 | pldm->blaze_data = local_handle; | |
150 | if (pldm->mode & TM_EXT_IO) { | |
151 | if ((pldm->io_ld_action == NULL) && (pldm->io_mmi_ld_action == NULL)) { | |
152 | ui->error("extension <%s> doesn't have LOAD op handler\n", pldm->name); | |
153 | } | |
154 | if ((pldm->io_st_action == NULL) && (pldm->io_mmi_st_action == NULL)) { | |
155 | ui->error("extension <%s> doesn't have STORE op handler\n", pldm->name); | |
156 | } | |
157 | } | |
158 | } | |
159 | ||
160 | ////////////////////////////////////////////////////////// | |
161 | ||
162 | fn_misc TM_get_ld_action_ext (void *io_module) | |
163 | { | |
164 | Ldm *pldm = (Ldm*)io_module; | |
165 | return pldm->io_ld_action; | |
166 | } | |
167 | ||
168 | ////////////////////////////////////////////////////////// | |
169 | ||
170 | fn_misc TM_get_st_action_ext (void *io_module) | |
171 | { | |
172 | Ldm *pldm = (Ldm*)io_module; | |
173 | return pldm->io_st_action; | |
174 | } | |
175 | ||
176 | ////////////////////////////////////////////////////////// | |
177 | ||
178 | uint32_t TM_is_ready_ext (void * /* io_module */) | |
179 | { | |
180 | return 1; // always ready | |
181 | } | |
182 | ||
183 | ////////////////////////////////////////////////////////// | |
184 | ||
185 | fn_misc TM_get_st_mmi_action_ext (void *io_module) | |
186 | { | |
187 | Ldm *pldm = (Ldm*)io_module; | |
188 | return pldm->io_mmi_st_action; | |
189 | } | |
190 | ||
191 | ////////////////////////////////////////////////////////// | |
192 | ||
193 | fn_misc TM_get_ld_mmi_action_ext (void *io_module) | |
194 | { | |
195 | Ldm *pldm = (Ldm*)io_module; | |
196 | return pldm->io_mmi_ld_action; | |
197 | } | |
198 | ||
199 | ||
200 | ////////////////////////////////////////////////////////// | |
201 | ||
202 | // EXTERNAL | |
203 | // --------- | |
204 | // This routine registers module object | |
205 | // without existing *.so file. | |
206 | // Another words an entire NAME RELATED functionality | |
207 | // can be bound with this PSEUDOMODULE | |
208 | // | |
209 | tracemod_t *TM_self_pseudomod_spec (tracemod_t *main_mod, const char* mod_name, | |
210 | const char *help, TM_OPAQUE_DATA client_data) | |
211 | { | |
212 | Ldm *pldm = NULL; | |
213 | ||
214 | if (SYSTEM_is_running()) { | |
215 | ui->fatal("TM_self_pseudomod_spec called while blaze running\n"); | |
216 | exit (1); | |
217 | } | |
218 | pldm = ldm_add_spec ((char*)mod_name, NULL); | |
219 | if (pldm == NULL) { | |
220 | return NULL; | |
221 | } | |
222 | pldm->argc = 1; | |
223 | pldm->argv = (char**) calloc (1, sizeof(char*)); | |
224 | pldm->argv[0] = strdup(mod_name); | |
225 | pldm->so_handle = 0; | |
226 | pldm->valid = TRUE; | |
227 | pldm->help = strdup(help); | |
228 | pldm->client_data = client_data; | |
229 | pldm->parent = main_mod; | |
230 | return pldm; | |
231 | } | |
232 | ||
233 | ////////////////////////////////////////////////////////// | |
234 | // EXTERNAL | |
235 | // -------- | |
236 | ||
237 | void TM_register_io_action (tracemod_t *mod, fn_misc ld_action, fn_misc st_action) | |
238 | { | |
239 | mod->io_ld_action = ld_action; | |
240 | mod->io_st_action = st_action; | |
241 | } | |
242 | ||
243 | ////////////////////////////////////////////////////////// | |
244 | ||
245 | void TM_register_io_mmi_action (tracemod_t *mod, fn_misc ld_action, fn_misc st_action) | |
246 | { | |
247 | mod->io_mmi_ld_action = ld_action; | |
248 | mod->io_mmi_st_action = st_action; | |
249 | } | |
250 | ||
251 | ////////////////////////////////////////////////////////// | |
252 | ||
253 | void TM_register_client_data (tracemod_t *mod, TM_OPAQUE_DATA d) | |
254 | { | |
255 | mod->client_data = d; | |
256 | } | |
257 | ||
258 | void TM_register_asi_client_data (tracemod_t *mod, TM_OPAQUE_DATA d) | |
259 | { | |
260 | mod->asi_client_data = d; | |
261 | } | |
262 | ||
263 | ||
264 | ////////////////////////////////////////////////////////// | |
265 | // time_intf | |
266 | ////////////////////////////////////////////////////////// | |
267 | ||
268 | mutex_t time_intf_lock; | |
269 | ldm_time_intf *head_time_intf; | |
270 | ||
271 | void ldm_tick_ext_init() | |
272 | { | |
273 | mutex_init(&time_intf_lock, USYNC_THREAD, NULL); | |
274 | } | |
275 | ||
276 | ////////////////////////////////////////////////////////// | |
277 | ||
278 | void TM_enable_time_intf (void *intf, uint64_t how_often) | |
279 | { | |
280 | ldm_time_intf *time_intf = (ldm_time_intf*)intf; | |
281 | time_intf->threshold = how_often; | |
282 | time_intf->cnt = how_often; | |
283 | time_intf->status = TM_INTF_STATUS_ENABLED; | |
284 | } | |
285 | ||
286 | ////////////////////////////////////////////////////////// | |
287 | ||
288 | void TM_disable_time_intf (void *intf) | |
289 | { | |
290 | ldm_time_intf *time_intf = (ldm_time_intf*)intf; | |
291 | time_intf->status = TM_INTF_STATUS_DISABLED; | |
292 | } | |
293 | ||
294 | ||
295 | ////////////////////////////////////////////////////////// | |
296 | ||
297 | void *TM_register_time_intf (tracemod_t *mod, TM_OPAQUE_DATA d, fn_event_cycle handler, uint64_t how_often) | |
298 | { | |
299 | ||
300 | ldm_time_intf *time_intf = (ldm_time_intf*)calloc (1, sizeof(ldm_time_intf)); | |
301 | assert(time_intf); | |
302 | ||
303 | time_intf->threshold = how_often; | |
304 | time_intf->cnt = how_often; | |
305 | time_intf->event_handler = handler; | |
306 | time_intf->client_data = d; | |
307 | time_intf->self = time_intf; | |
308 | time_intf->owner = mod; | |
309 | time_intf->status = TM_INTF_STATUS_ENABLED; | |
310 | ||
311 | mutex_lock(&time_intf_lock); | |
312 | time_intf->next = head_time_intf; | |
313 | head_time_intf = time_intf; | |
314 | mutex_unlock(&time_intf_lock); | |
315 | ||
316 | return time_intf; | |
317 | } | |
318 | ||
319 | ////////////////////////////////////////////////////////// | |
320 | ||
321 | void TM_unregister_time_intf (tracemod_t *mod, void *intf) | |
322 | { | |
323 | ldm_time_intf *time_intf, **prev; | |
324 | ||
325 | mutex_lock(&time_intf_lock); | |
326 | for (prev = &head_time_intf; (time_intf = *prev) != NULL; ) { | |
327 | if (!intf && time_intf->owner == mod) { | |
328 | *prev = time_intf->next; | |
329 | free ((void*)time_intf); | |
330 | } | |
331 | else if (time_intf == intf) { | |
332 | *prev = time_intf->next; | |
333 | free ((void*)time_intf); | |
334 | break; | |
335 | } | |
336 | else | |
337 | prev = &time_intf->next; | |
338 | } | |
339 | mutex_unlock(&time_intf_lock); | |
340 | } | |
341 | ||
342 | ////////////////////////////////////////////////////////// | |
343 | ||
344 | void TM_tick_ext (int incr) | |
345 | { | |
346 | ldm_time_intf *copy; | |
347 | ldm_time_intf *time_intf; | |
348 | ldm_time_intf *time_intf_copy = NULL; | |
349 | ||
350 | // make a copy of callbacks while the lock is held | |
351 | mutex_lock(&time_intf_lock); | |
352 | for (time_intf = head_time_intf; time_intf; time_intf = time_intf->next) { | |
353 | if (time_intf->status == TM_INTF_STATUS_ENABLED) { | |
354 | time_intf->abs_cnt += incr; | |
355 | if ((time_intf->cnt -= incr) <= 0) { | |
356 | // the owner is always ready to accept the tick callback | |
357 | copy = (ldm_time_intf *) alloca(sizeof(ldm_time_intf)); | |
358 | assert(copy); | |
359 | *copy = *time_intf; | |
360 | copy->next = time_intf_copy; | |
361 | time_intf_copy = copy; | |
362 | time_intf->cnt = time_intf->threshold; | |
363 | } | |
364 | } | |
365 | } | |
366 | mutex_unlock(&time_intf_lock); | |
367 | ||
368 | // now call the handlers without a lock | |
369 | while ((time_intf = time_intf_copy) != NULL) { | |
370 | time_intf_copy = time_intf->next; | |
371 | time_intf->event_handler(time_intf->client_data, time_intf->abs_cnt); | |
372 | } | |
373 | } | |
374 | ||
375 |