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/handle.h>
27 #include <core/client.h>
29 #define hprintk(h,l,f,a...) do { \
30 struct nouveau_client *c = nouveau_client((h)->object); \
31 struct nouveau_handle *p = (h)->parent; u32 n = p ? p->name : ~0; \
32 nv_printk((c), l, "0x%08x:0x%08x "f, n, (h)->name, ##a); \
36 nouveau_handle_init(struct nouveau_handle *handle)
38 struct nouveau_handle *item;
41 hprintk(handle, TRACE, "init running\n");
42 ret = nouveau_object_inc(handle->object);
46 hprintk(handle, TRACE, "init children\n");
47 list_for_each_entry(item, &handle->tree, head) {
48 ret = nouveau_handle_init(item);
53 hprintk(handle, TRACE, "init completed\n");
56 hprintk(handle, ERROR, "init failed with %d\n", ret);
57 list_for_each_entry_continue_reverse(item, &handle->tree, head) {
58 nouveau_handle_fini(item, false);
61 nouveau_object_dec(handle->object, false);
66 nouveau_handle_fini(struct nouveau_handle *handle, bool suspend)
68 static char *name[2] = { "fini", "suspend" };
69 struct nouveau_handle *item;
72 hprintk(handle, TRACE, "%s children\n", name[suspend]);
73 list_for_each_entry(item, &handle->tree, head) {
74 ret = nouveau_handle_fini(item, suspend);
79 hprintk(handle, TRACE, "%s running\n", name[suspend]);
81 ret = nouveau_object_dec(handle->object, suspend);
86 hprintk(handle, TRACE, "%s completed\n", name[suspend]);
89 hprintk(handle, ERROR, "%s failed with %d\n", name[suspend], ret);
90 list_for_each_entry_continue_reverse(item, &handle->tree, head) {
91 int rret = nouveau_handle_init(item);
93 hprintk(handle, FATAL, "failed to restart, %d\n", rret);
100 nouveau_handle_create(struct nouveau_object *parent, u32 _parent, u32 _handle,
101 struct nouveau_object *object,
102 struct nouveau_handle **phandle)
104 struct nouveau_object *namedb;
105 struct nouveau_handle *handle;
109 while (!nv_iclass(namedb, NV_NAMEDB_CLASS))
110 namedb = namedb->parent;
112 handle = *phandle = kzalloc(sizeof(*handle), GFP_KERNEL);
116 INIT_LIST_HEAD(&handle->head);
117 INIT_LIST_HEAD(&handle->tree);
118 handle->name = _handle;
121 ret = nouveau_namedb_insert(nv_namedb(namedb), _handle, object, handle);
127 if (nv_parent(parent)->object_attach) {
128 ret = nv_parent(parent)->object_attach(parent, object, _handle);
130 nouveau_handle_destroy(handle);
137 if (object != namedb) {
138 while (!nv_iclass(namedb, NV_CLIENT_CLASS))
139 namedb = namedb->parent;
141 handle->parent = nouveau_namedb_get(nv_namedb(namedb), _parent);
142 if (handle->parent) {
143 list_add(&handle->head, &handle->parent->tree);
144 nouveau_namedb_put(handle->parent);
148 hprintk(handle, TRACE, "created\n");
153 nouveau_handle_destroy(struct nouveau_handle *handle)
155 struct nouveau_handle *item, *temp;
157 hprintk(handle, TRACE, "destroy running\n");
158 list_for_each_entry_safe(item, temp, &handle->tree, head) {
159 nouveau_handle_destroy(item);
161 list_del(&handle->head);
163 if (handle->priv != ~0) {
164 struct nouveau_object *parent = handle->parent->object;
165 nv_parent(parent)->object_detach(parent, handle->priv);
168 hprintk(handle, TRACE, "destroy completed\n");
169 nouveau_namedb_remove(handle);
173 struct nouveau_object *
174 nouveau_handle_ref(struct nouveau_object *parent, u32 name)
176 struct nouveau_object *object = NULL;
177 struct nouveau_handle *handle;
179 while (!nv_iclass(parent, NV_NAMEDB_CLASS))
180 parent = parent->parent;
182 handle = nouveau_namedb_get(nv_namedb(parent), name);
184 nouveau_object_ref(handle->object, &object);
185 nouveau_namedb_put(handle);
191 struct nouveau_handle *
192 nouveau_handle_get_class(struct nouveau_object *engctx, u16 oclass)
194 struct nouveau_namedb *namedb;
195 if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
196 return nouveau_namedb_get_class(namedb, oclass);
200 struct nouveau_handle *
201 nouveau_handle_get_vinst(struct nouveau_object *engctx, u64 vinst)
203 struct nouveau_namedb *namedb;
204 if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
205 return nouveau_namedb_get_vinst(namedb, vinst);
209 struct nouveau_handle *
210 nouveau_handle_get_cinst(struct nouveau_object *engctx, u32 cinst)
212 struct nouveau_namedb *namedb;
213 if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
214 return nouveau_namedb_get_cinst(namedb, cinst);
219 nouveau_handle_put(struct nouveau_handle *handle)
222 nouveau_namedb_put(handle);