open-gpu-kernel-modules/kernel-open/common/inc/nv-pci.h
2022-05-09 13:18:59 -07:00

49 lines
1.9 KiB
C

/*
* SPDX-FileCopyrightText: Copyright (c) 2019 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_PCI_H_
#define _NV_PCI_H_
#include <linux/pci.h>
#include "nv-linux.h"
#if defined(NV_DEV_IS_PCI_PRESENT)
#define nv_dev_is_pci(dev) dev_is_pci(dev)
#else
/*
* Non-PCI devices are only supported on kernels which expose the
* dev_is_pci() function. For older kernels, we only support PCI
* devices, hence returning true to take all the PCI code paths.
*/
#define nv_dev_is_pci(dev) (true)
#endif
int nv_pci_register_driver(void);
void nv_pci_unregister_driver(void);
int nv_pci_count_devices(void);
NvU8 nv_find_pci_capability(struct pci_dev *, NvU8);
int nvidia_dev_get_pci_info(const NvU8 *, struct pci_dev **, NvU64 *, NvU64 *);
nv_linux_state_t * find_pci(NvU32, NvU8, NvU8, NvU8);
#endif