open-gpu-kernel-modules/kernel-open/nvidia/nv-frontend.h

48 lines
2.0 KiB
C
Raw Normal View History

2022-05-09 22:18:59 +02:00
/*
* SPDX-FileCopyrightText: Copyright (c) 2012-2013 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#ifndef _NV_FRONTEND_H_
#define _NV_FRONTEND_H_
#include "nvtypes.h"
#include "nv-linux.h"
#include "nv-register-module.h"
#define NV_MAX_MODULE_INSTANCES 8
#define NV_FRONTEND_MINOR_NUMBER(x) minor((x)->i_rdev)
#define NV_FRONTEND_CONTROL_DEVICE_MINOR_MAX 255
#define NV_FRONTEND_CONTROL_DEVICE_MINOR_MIN (NV_FRONTEND_CONTROL_DEVICE_MINOR_MAX - \
NV_MAX_MODULE_INSTANCES)
#define NV_FRONTEND_IS_CONTROL_DEVICE(x) ((x <= NV_FRONTEND_CONTROL_DEVICE_MINOR_MAX) && \
(x > NV_FRONTEND_CONTROL_DEVICE_MINOR_MIN))
int nvidia_frontend_add_device(nvidia_module_t *, nv_linux_state_t *);
int nvidia_frontend_remove_device(nvidia_module_t *, nv_linux_state_t *);
extern nvidia_module_t *nv_minor_num_table[];
#endif