client.c

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/*
 * 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/object.h>
#include <core/client.h>
#include <core/handle.h>
#include <core/option.h>

#include <subdev/device.h>

static void
nouveau_client_dtor(struct nouveau_object *object)
{
    struct nouveau_client *client = (void *)object;
    nouveau_object_ref(NULL, &client->device);
    nouveau_handle_destroy(client->root);
    nouveau_namedb_destroy(&client->base);
}

static struct nouveau_oclass
nouveau_client_oclass = {
    .ofuncs = &(struct nouveau_ofuncs) {
        .dtor = nouveau_client_dtor,
    },
};

int
nouveau_client_create_(const char *name, u64 devname, const char *cfg,
               const char *dbg, int length, void **pobject)
{
    struct nouveau_object *device;
    struct nouveau_client *client;
    int ret;

    device = (void *)nouveau_device_find(devname);
    if (!device)
        return -ENODEV;

    ret = nouveau_namedb_create_(NULL, NULL, &nouveau_client_oclass,
                     NV_CLIENT_CLASS, nouveau_device_sclass,
                     0, length, pobject);
    client = *pobject;
    if (ret)
        return ret;

    ret = nouveau_handle_create(nv_object(client), ~0, ~0,
                    nv_object(client), &client->root);
    if (ret) {
        nouveau_namedb_destroy(&client->base);
        return ret;
    }

    /* prevent init/fini being called, os in in charge of this */
    atomic_set(&nv_object(client)->usecount, 2);

    nouveau_object_ref(device, &client->device);
    snprintf(client->name, sizeof(client->name), "%s", name);
    client->debug = nouveau_dbgopt(dbg, "CLIENT");
    return 0;
}

int
nouveau_client_init(struct nouveau_client *client)
{
    int ret;
    nv_debug(client, "init running\n");
    ret = nouveau_handle_init(client->root);
    nv_debug(client, "init completed with %d\n", ret);
    return ret;
}

int
nouveau_client_fini(struct nouveau_client *client, bool suspend)
{
    const char *name[2] = { "fini", "suspend" };
    int ret;

    nv_debug(client, "%s running\n", name[suspend]);
    ret = nouveau_handle_fini(client->root, suspend);
    nv_debug(client, "%s completed with %d\n", name[suspend], ret);
    return ret;
}