2 * Copyright 2012 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
25 #include <core/object.h>
26 #include <core/parent.h>
27 #include <core/namedb.h>
28 #include <core/handle.h>
29 #include <core/engine.h>
31 #ifdef NOUVEAU_OBJECT_MAGIC
32 static struct list_head _objlist = LIST_HEAD_INIT(_objlist);
33 static DEFINE_SPINLOCK(_objlist_lock);
37 nouveau_object_create_(struct nouveau_object *parent,
38 struct nouveau_object *engine,
39 struct nouveau_oclass *oclass, u32 pclass,
40 int size, void **pobject)
42 struct nouveau_object *object;
44 object = *pobject = kzalloc(size, GFP_KERNEL);
48 nouveau_object_ref(parent, &object->parent);
49 nouveau_object_ref(engine, &object->engine);
50 object->oclass = oclass;
51 object->oclass->handle |= pclass;
52 atomic_set(&object->refcount, 1);
53 atomic_set(&object->usecount, 0);
55 #ifdef NOUVEAU_OBJECT_MAGIC
56 object->_magic = NOUVEAU_OBJECT_MAGIC;
57 spin_lock(&_objlist_lock);
58 list_add(&object->list, &_objlist);
59 spin_unlock(&_objlist_lock);
65 _nouveau_object_ctor(struct nouveau_object *parent,
66 struct nouveau_object *engine,
67 struct nouveau_oclass *oclass, void *data, u32 size,
68 struct nouveau_object **pobject)
70 struct nouveau_object *object;
73 ret = nouveau_object_create(parent, engine, oclass, 0, &object);
74 *pobject = nv_object(object);
82 nouveau_object_destroy(struct nouveau_object *object)
84 #ifdef NOUVEAU_OBJECT_MAGIC
85 spin_lock(&_objlist_lock);
86 list_del(&object->list);
87 spin_unlock(&_objlist_lock);
89 nouveau_object_ref(NULL, &object->engine);
90 nouveau_object_ref(NULL, &object->parent);
95 _nouveau_object_dtor(struct nouveau_object *object)
97 nouveau_object_destroy(object);
101 nouveau_object_init(struct nouveau_object *object)
107 _nouveau_object_init(struct nouveau_object *object)
109 return nouveau_object_init(object);
113 nouveau_object_fini(struct nouveau_object *object, bool suspend)
119 _nouveau_object_fini(struct nouveau_object *object, bool suspend)
121 return nouveau_object_fini(object, suspend);
124 struct nouveau_ofuncs
125 nouveau_object_ofuncs = {
126 .ctor = _nouveau_object_ctor,
127 .dtor = _nouveau_object_dtor,
128 .init = _nouveau_object_init,
129 .fini = _nouveau_object_fini,
133 nouveau_object_ctor(struct nouveau_object *parent,
134 struct nouveau_object *engine,
135 struct nouveau_oclass *oclass, void *data, u32 size,
136 struct nouveau_object **pobject)
138 struct nouveau_ofuncs *ofuncs = oclass->ofuncs;
143 ret = ofuncs->ctor(parent, engine, oclass, data, size, pobject);
145 if (ret != -ENODEV) {
146 nv_error(parent, "failed to create 0x%08x, %d\n",
147 oclass->handle, ret);
151 ofuncs->dtor(*pobject);
158 nv_debug(*pobject, "created\n");
163 nouveau_object_dtor(struct nouveau_object *object)
165 nv_debug(object, "destroying\n");
166 nv_ofuncs(object)->dtor(object);
170 nouveau_object_ref(struct nouveau_object *obj, struct nouveau_object **ref)
173 atomic_inc(&obj->refcount);
174 nv_trace(obj, "inc() == %d\n", atomic_read(&obj->refcount));
178 int dead = atomic_dec_and_test(&(*ref)->refcount);
179 nv_trace(*ref, "dec() == %d\n", atomic_read(&(*ref)->refcount));
181 nouveau_object_dtor(*ref);
188 nouveau_object_new(struct nouveau_object *client, u32 _parent, u32 _handle,
189 u16 _oclass, void *data, u32 size,
190 struct nouveau_object **pobject)
192 struct nouveau_object *parent = NULL;
193 struct nouveau_object *engctx = NULL;
194 struct nouveau_object *object = NULL;
195 struct nouveau_object *engine;
196 struct nouveau_oclass *oclass;
197 struct nouveau_handle *handle;
200 /* lookup parent object and ensure it *is* a parent */
201 parent = nouveau_handle_ref(client, _parent);
203 nv_error(client, "parent 0x%08x not found\n", _parent);
207 if (!nv_iclass(parent, NV_PARENT_CLASS)) {
208 nv_error(parent, "cannot have children\n");
213 /* check that parent supports the requested subclass */
214 ret = nouveau_parent_sclass(parent, _oclass, &engine, &oclass);
216 nv_debug(parent, "illegal class 0x%04x\n", _oclass);
220 /* make sure engine init has been completed *before* any objects
221 * it controls are created - the constructors may depend on
222 * state calculated at init (ie. default context construction)
225 ret = nouveau_object_inc(engine);
230 /* if engine requires it, create a context object to insert
231 * between the parent and its children (eg. PGRAPH context)
233 if (engine && nv_engine(engine)->cclass) {
234 ret = nouveau_object_ctor(parent, engine,
235 nv_engine(engine)->cclass,
236 data, size, &engctx);
240 nouveau_object_ref(parent, &engctx);
243 /* finally, create new object and bind it to its handle */
244 ret = nouveau_object_ctor(engctx, engine, oclass, data, size, &object);
249 ret = nouveau_object_inc(object);
253 ret = nouveau_handle_create(parent, _parent, _handle, object, &handle);
257 ret = nouveau_handle_init(handle);
259 nouveau_handle_destroy(handle);
262 nouveau_object_dec(object, false);
264 nouveau_object_ref(NULL, &object);
266 nouveau_object_ref(NULL, &engctx);
269 nouveau_object_dec(engine, false);
271 nouveau_object_ref(NULL, &parent);
276 nouveau_object_del(struct nouveau_object *client, u32 _parent, u32 _handle)
278 struct nouveau_object *parent = NULL;
279 struct nouveau_object *namedb = NULL;
280 struct nouveau_handle *handle = NULL;
283 parent = nouveau_handle_ref(client, _parent);
287 namedb = nv_pclass(parent, NV_NAMEDB_CLASS);
289 handle = nouveau_namedb_get(nv_namedb(namedb), _handle);
291 nouveau_namedb_put(handle);
292 nouveau_handle_fini(handle, false);
293 nouveau_handle_destroy(handle);
297 nouveau_object_ref(NULL, &parent);
302 nouveau_object_inc(struct nouveau_object *object)
304 int ref = atomic_add_return(1, &object->usecount);
307 nv_trace(object, "use(+1) == %d\n", atomic_read(&object->usecount));
311 nv_trace(object, "initialising...\n");
312 if (object->parent) {
313 ret = nouveau_object_inc(object->parent);
315 nv_error(object, "parent failed, %d\n", ret);
320 if (object->engine) {
321 mutex_lock(&nv_subdev(object->engine)->mutex);
322 ret = nouveau_object_inc(object->engine);
323 mutex_unlock(&nv_subdev(object->engine)->mutex);
325 nv_error(object, "engine failed, %d\n", ret);
330 ret = nv_ofuncs(object)->init(object);
332 nv_error(object, "init failed, %d\n", ret);
336 nv_debug(object, "initialised\n");
340 if (object->engine) {
341 mutex_lock(&nv_subdev(object->engine)->mutex);
342 nouveau_object_dec(object->engine, false);
343 mutex_unlock(&nv_subdev(object->engine)->mutex);
347 nouveau_object_dec(object->parent, false);
349 atomic_dec(&object->usecount);
354 nouveau_object_decf(struct nouveau_object *object)
358 nv_trace(object, "stopping...\n");
360 ret = nv_ofuncs(object)->fini(object, false);
362 nv_warn(object, "failed fini, %d\n", ret);
364 if (object->engine) {
365 mutex_lock(&nv_subdev(object->engine)->mutex);
366 nouveau_object_dec(object->engine, false);
367 mutex_unlock(&nv_subdev(object->engine)->mutex);
371 nouveau_object_dec(object->parent, false);
373 nv_debug(object, "stopped\n");
378 nouveau_object_decs(struct nouveau_object *object)
382 nv_trace(object, "suspending...\n");
384 ret = nv_ofuncs(object)->fini(object, true);
386 nv_error(object, "failed suspend, %d\n", ret);
390 if (object->engine) {
391 mutex_lock(&nv_subdev(object->engine)->mutex);
392 ret = nouveau_object_dec(object->engine, true);
393 mutex_unlock(&nv_subdev(object->engine)->mutex);
395 nv_warn(object, "engine failed suspend, %d\n", ret);
400 if (object->parent) {
401 ret = nouveau_object_dec(object->parent, true);
403 nv_warn(object, "parent failed suspend, %d\n", ret);
408 nv_debug(object, "suspended\n");
412 if (object->engine) {
413 mutex_lock(&nv_subdev(object->engine)->mutex);
414 rret = nouveau_object_inc(object->engine);
415 mutex_unlock(&nv_subdev(object->engine)->mutex);
417 nv_fatal(object, "engine failed to reinit, %d\n", rret);
421 rret = nv_ofuncs(object)->init(object);
423 nv_fatal(object, "failed to reinit, %d\n", rret);
429 nouveau_object_dec(struct nouveau_object *object, bool suspend)
431 int ref = atomic_add_return(-1, &object->usecount);
434 nv_trace(object, "use(-1) == %d\n", atomic_read(&object->usecount));
438 ret = nouveau_object_decs(object);
440 ret = nouveau_object_decf(object);
443 atomic_inc(&object->usecount);
452 nouveau_object_debug(void)
454 #ifdef NOUVEAU_OBJECT_MAGIC
455 struct nouveau_object *object;
456 if (!list_empty(&_objlist)) {
457 nv_fatal(NULL, "*******************************************\n");
458 nv_fatal(NULL, "* AIIIII! object(s) still exist!!!\n");
459 nv_fatal(NULL, "*******************************************\n");
460 list_for_each_entry(object, &_objlist, list) {
461 nv_fatal(object, "%p/%p/%d/%d\n",
462 object->parent, object->engine,
463 atomic_read(&object->refcount),
464 atomic_read(&object->usecount));