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

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/*
* SPDX-FileCopyrightText: Copyright (c) 2019-2020 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 _NVLINK_COMMON_H_
#define _NVLINK_COMMON_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "nvtypes.h"
#include "nvCpuUuid.h"
#include "nvlink_errors.h"
#ifndef NULL
#define NULL ((void *)0)
#endif
// nvlink pci bar information
struct nvlink_pci_bar_info
{
NvU64 busAddress;
NvU64 baseAddr;
NvU64 barSize;
NvU32 offset;
void *pBar;
};
#define MAX_NVLINK_BARS 2
// nvlink pci information
struct nvlink_pci_info
{
NvU32 domain;
NvU8 bus;
NvU8 device;
NvU8 function;
NvU32 pciDeviceId;
NvU32 irq;
NvBool intHooked;
struct nvlink_pci_bar_info bars[MAX_NVLINK_BARS];
};
// nvlink detailed device information
struct nvlink_detailed_device_info
{
char *deviceName;
NvU64 deviceType;
NvU8 *devUuid;
NvBool bInitialized;
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NvBool bEnableALI;
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void *dev_info; // Endpoint driver device info opaque
// to core lib. Passed from end point
// driver to core
struct nvlink_pci_info *pciInfo;
};
// nvlink device registration parameters
struct nvlink_device_register_params
{
//
// Core lib device info opaque to endpoint driver
// Passed from core lib to endpoint driver
//
void **deviceHandle;
char *driverName;
struct nvlink_detailed_device_info *device_params;
};
// nvlink detailed link information
struct nvlink_detailed_link_info
{
void *deviceHandle; // Core library device handle passed
// to endpoint driver during device
// registration
void *link_info; // End point driver link info opaque
// to core lib. Passed from end point
// driver to core
char *linkName;
NvU32 linkNumber;
NvU32 version;
NvBool bAcCoupled;
const void *link_handlers;
};
// nvlink link registration parameters
struct nvlink_link_register_params
{
//
// Core lib link info opaque to endpoint driver
// Passed from core lib to endpoint driver
//
void **linkHandle;
struct nvlink_detailed_link_info *link_params;
};
// nvlink client device handle
struct nvlink_device_handle
{
NvU32 linkMask;
struct nvlink_pci_info pciInfo;
};
#define NVLINK_PCI_DEV_FMT "%04x:%02x:%02x.%x"
#define NVLINK_PCI_DEV_FMT_ARGS(info) (info)->domain, \
(info)->bus, \
(info)->device, \
(info)->function
// nvlink connection information
struct nvlink_conn_info
{
NvU32 domain;
NvU16 bus;
NvU16 device;
NvU16 function;
NvU32 pciDeviceId;
NvU8 devUuid[NV_UUID_LEN];
NvU64 deviceType;
NvU32 linkNumber;
NvBool bConnected;
NvU64 chipSid;
};
// nvlink ioctrl params
struct nvlink_ioctrl_params
{
void *osPrivate;
NvU32 cmd;
void *buf;
NvU32 size;
};
// Typedefs
typedef struct nvlink_pci_bar_info nvlink_pci_bar_info;
typedef struct nvlink_pci_info nvlink_pci_info;
typedef struct nvlink_detailed_device_info nvlink_detailed_device_info;
typedef struct nvlink_detailed_link_info nvlink_detailed_link_info;
typedef struct nvlink_device_register_params nvlink_device_register_params;
typedef struct nvlink_link_register_params nvlink_link_register_params;
typedef struct nvlink_conn_info nvlink_conn_info;
typedef struct nvlink_ioctrl_params nvlink_ioctrl_params;
#ifdef __cplusplus
}
#endif
#endif //_NVLINK_COMMON_H_