nvidia-open-gpu-kernel-modules/kernel-open/nvidia/linux_nvswitch.h

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/*
* SPDX-FileCopyrightText: Copyright (c) 2016-2021 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 LINUX_NVSWITCH_H
#define LINUX_NVSWITCH_H
#include "nvmisc.h"
#include "nv-linux.h"
#include "nv-kthread-q.h"
#include "export_nvswitch.h"
#define NVSWITCH_SHORT_NAME "nvswi"
#define NVSWITCH_IRQ_NONE 0
#define NVSWITCH_IRQ_MSIX 1
#define NVSWITCH_IRQ_MSI 2
#define NVSWITCH_IRQ_PIN 3
#define NVSWITCH_OS_ASSERT(_cond) \
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do { \
if (!(_cond)) { \
nvswitch_os_assert_log("NVSwitch: Assertion failed in %s() at %s:%d\n", \
__FUNCTION__ , __FILE__, __LINE__); \
} \
} while(0)
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#define NVSWITCH_KMALLOC_LIMIT (128 * 1024)
#define nvswitch_os_malloc(_size) nvswitch_os_malloc_trace(_size, __FILE__, __LINE__)
typedef struct
{
struct list_head entry;
struct i2c_adapter *adapter;
} nvswitch_i2c_adapter_entry;
// Per-chip driver state
typedef struct
{
char name[sizeof(NVSWITCH_DRIVER_NAME) + 4];
char sname[sizeof(NVSWITCH_SHORT_NAME) + 4]; /* short name */
int minor;
NvUuid uuid;
struct mutex device_mutex;
nvswitch_device *lib_device; /* nvswitch library device */
wait_queue_head_t wait_q_errors;
void *bar0;
struct nv_kthread_q task_q; /* Background task queue */
struct nv_kthread_q_item task_item; /* Background dispatch task */
atomic_t task_q_ready;
wait_queue_head_t wait_q_shutdown;
struct pci_dev *pci_dev;
atomic_t ref_count;
struct list_head list_node;
NvBool unusable;
NvU32 phys_id;
NvU64 bios_ver;
#if defined(CONFIG_PROC_FS)
struct proc_dir_entry *procfs_dir;
#endif
NvU8 irq_mechanism;
struct list_head i2c_adapter_list;
} NVSWITCH_DEV;
int nvswitch_map_status(NvlStatus status);
int nvswitch_procfs_init(void);
void nvswitch_procfs_exit(void);
int nvswitch_procfs_device_add(NVSWITCH_DEV *nvswitch_dev);
void nvswitch_procfs_device_remove(NVSWITCH_DEV *nvswitch_dev);
struct i2c_adapter *nvswitch_i2c_add_adapter(NVSWITCH_DEV *nvswitch_dev, NvU32 port);
void nvswitch_i2c_del_adapter(struct i2c_adapter *adapter);
#endif // LINUX_NVSWITCH_H