+++ /dev/null
-/*
- * Copyright 2012 Red Hat Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors: Ben Skeggs
- */
-#include <core/handle.h>
-#include <core/client.h>
-
-#define hprintk(h,l,f,a...) do { \
- struct nvkm_client *c = nvkm_client((h)->object); \
- struct nvkm_handle *p = (h)->parent; u32 n = p ? p->name : ~0; \
- nv_printk((c), l, "0x%08x:0x%08x "f, n, (h)->name, ##a); \
-} while(0)
-
-int
-nvkm_handle_init(struct nvkm_handle *handle)
-{
- struct nvkm_handle *item;
- int ret;
-
- hprintk(handle, TRACE, "init running\n");
- ret = nvkm_object_inc(handle->object);
- if (ret)
- return ret;
-
- hprintk(handle, TRACE, "init children\n");
- list_for_each_entry(item, &handle->tree, head) {
- ret = nvkm_handle_init(item);
- if (ret)
- goto fail;
- }
-
- hprintk(handle, TRACE, "init completed\n");
- return 0;
-fail:
- hprintk(handle, ERROR, "init failed with %d\n", ret);
- list_for_each_entry_continue_reverse(item, &handle->tree, head) {
- nvkm_handle_fini(item, false);
- }
-
- nvkm_object_dec(handle->object, false);
- return ret;
-}
-
-int
-nvkm_handle_fini(struct nvkm_handle *handle, bool suspend)
-{
- static char *name[2] = { "fini", "suspend" };
- struct nvkm_handle *item;
- int ret;
-
- hprintk(handle, TRACE, "%s children\n", name[suspend]);
- list_for_each_entry(item, &handle->tree, head) {
- ret = nvkm_handle_fini(item, suspend);
- if (ret && suspend)
- goto fail;
- }
-
- hprintk(handle, TRACE, "%s running\n", name[suspend]);
- if (handle->object) {
- ret = nvkm_object_dec(handle->object, suspend);
- if (ret && suspend)
- goto fail;
- }
-
- hprintk(handle, TRACE, "%s completed\n", name[suspend]);
- return 0;
-fail:
- hprintk(handle, ERROR, "%s failed with %d\n", name[suspend], ret);
- list_for_each_entry_continue_reverse(item, &handle->tree, head) {
- int rret = nvkm_handle_init(item);
- if (rret)
- hprintk(handle, FATAL, "failed to restart, %d\n", rret);
- }
-
- return ret;
-}
-
-int
-nvkm_handle_create(struct nvkm_object *parent, u32 _parent, u32 _handle,
- struct nvkm_object *object, struct nvkm_handle **phandle)
-{
- struct nvkm_object *namedb;
- struct nvkm_handle *handle;
- int ret;
-
- namedb = parent;
- while (!nv_iclass(namedb, NV_NAMEDB_CLASS))
- namedb = namedb->parent;
-
- handle = kzalloc(sizeof(*handle), GFP_KERNEL);
- if (!handle)
- return -ENOMEM;
-
- INIT_LIST_HEAD(&handle->head);
- INIT_LIST_HEAD(&handle->tree);
- handle->name = _handle;
- handle->priv = ~0;
-
- ret = nvkm_namedb_insert(nv_namedb(namedb), _handle, object, handle);
- if (ret) {
- kfree(handle);
- return ret;
- }
-
- if (nv_parent(parent)->object_attach) {
- ret = nv_parent(parent)->object_attach(parent, object, _handle);
- if (ret < 0) {
- nvkm_handle_destroy(handle);
- return ret;
- }
-
- handle->priv = ret;
- }
-
- if (object != namedb) {
- while (!nv_iclass(namedb, NV_CLIENT_CLASS))
- namedb = namedb->parent;
-
- handle->parent = nvkm_namedb_get(nv_namedb(namedb), _parent);
- if (handle->parent) {
- list_add(&handle->head, &handle->parent->tree);
- nvkm_namedb_put(handle->parent);
- }
- }
-
- hprintk(handle, TRACE, "created\n");
- *phandle = handle;
- return 0;
-}
-
-void
-nvkm_handle_destroy(struct nvkm_handle *handle)
-{
- struct nvkm_handle *item, *temp;
-
- hprintk(handle, TRACE, "destroy running\n");
- list_for_each_entry_safe(item, temp, &handle->tree, head) {
- nvkm_handle_destroy(item);
- }
- list_del(&handle->head);
-
- if (handle->priv != ~0) {
- struct nvkm_object *parent = handle->parent->object;
- nv_parent(parent)->object_detach(parent, handle->priv);
- }
-
- hprintk(handle, TRACE, "destroy completed\n");
- nvkm_namedb_remove(handle);
- kfree(handle);
-}
-
-struct nvkm_object *
-nvkm_handle_ref(struct nvkm_object *parent, u32 name)
-{
- struct nvkm_object *object = NULL;
- struct nvkm_handle *handle;
-
- while (!nv_iclass(parent, NV_NAMEDB_CLASS))
- parent = parent->parent;
-
- handle = nvkm_namedb_get(nv_namedb(parent), name);
- if (handle) {
- nvkm_object_ref(handle->object, &object);
- nvkm_namedb_put(handle);
- }
-
- return object;
-}
-
-struct nvkm_handle *
-nvkm_handle_get_class(struct nvkm_object *engctx, u16 oclass)
-{
- struct nvkm_namedb *namedb;
- if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
- return nvkm_namedb_get_class(namedb, oclass);
- return NULL;
-}
-
-struct nvkm_handle *
-nvkm_handle_get_vinst(struct nvkm_object *engctx, u64 vinst)
-{
- struct nvkm_namedb *namedb;
- if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
- return nvkm_namedb_get_vinst(namedb, vinst);
- return NULL;
-}
-
-struct nvkm_handle *
-nvkm_handle_get_cinst(struct nvkm_object *engctx, u32 cinst)
-{
- struct nvkm_namedb *namedb;
- if (engctx && (namedb = (void *)nv_pclass(engctx, NV_NAMEDB_CLASS)))
- return nvkm_namedb_get_cinst(namedb, cinst);
- return NULL;
-}
-
-void
-nvkm_handle_put(struct nvkm_handle *handle)
-{
- if (handle)
- nvkm_namedb_put(handle);
-}
Code Review / kvmfornfv.git / blobdiff