root/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/client.c
/* SPDX-License-Identifier: MIT
 *
 * Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
 */
#include "rm.h"

void
nvkm_gsp_client_dtor(struct nvkm_gsp_client *client)
{
        const unsigned int id = client->object.handle - NVKM_RM_CLIENT(0);
        struct nvkm_gsp *gsp = client->gsp;

        if (!gsp)
                return;

        if (client->object.client)
                nvkm_gsp_rm_free(&client->object);

        mutex_lock(&gsp->client_id.mutex);
        idr_remove(&gsp->client_id.idr, id);
        mutex_unlock(&gsp->client_id.mutex);

        client->gsp = NULL;
}

int
nvkm_gsp_client_ctor(struct nvkm_gsp *gsp, struct nvkm_gsp_client *client)
{
        int id, ret;

        if (WARN_ON(!gsp->rm))
                return -ENOSYS;

        mutex_lock(&gsp->client_id.mutex);
        id = idr_alloc(&gsp->client_id.idr, client, 0, NVKM_RM_CLIENT_MASK + 1, GFP_KERNEL);
        mutex_unlock(&gsp->client_id.mutex);
        if (id < 0)
                return id;

        client->gsp = gsp;
        client->object.client = client;
        INIT_LIST_HEAD(&client->events);

        ret = gsp->rm->api->client->ctor(client, NVKM_RM_CLIENT(id));
        if (ret)
                nvkm_gsp_client_dtor(client);

        return ret;
}