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/*
* SPDX-FileCopyrightText: Copyright (c) 2022 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.
*/
#pragma once
#include <nvtypes.h>
//
// This file was generated with FINN, an NVIDIA coding tool.
// Source file: ctrl/ctrl2080/ctrl2080dmabuf.finn
//
/*
* NV2080_CTRL_CMD_DMABUF_EXPORT_OBJECTS_TO_FD
*
* Exports RM vidmem handles to a dma-buf fd.
*
* The objects in the 'handles' array are exported to the fd as range:
* [index, index + numObjects).
*
* A dma-buf fd is created the first time this control call is called.
* The fd is an input parameter for subsequent calls to attach additional handles
* over NV2080_CTRL_DMABUF_MAX_HANDLES.
*
* fd
* A dma-buf file descriptor. If -1, a new FD will be created.
*
* totalObjects
* The total number of objects that the client wishes to export to the FD.
* This parameter will be honored only when the FD is getting created.
*
* numObjects
* The number of handles the user wishes to export in this call.
*
* index
* The index into the export fd at which to start exporting the handles in
* 'handles'. This index cannot overlap a previously used index.
*
* totalSize
* The total size of memory being exported in bytes, needed to create the dma-buf.
* This size includes the memory that will be exported in future export calls
* for this dma-buf.
*
* handles
* An array of {handle, offset, size} that describes the dma-buf.
* The offsets and sizes must be OS page-size aligned.
*
* Limitations:
* 1. This call only supports vidmem objects for now.
* 2. All memory handles should belong to the same GPU or the same GPU MIG instance.
*
* Possible status values returned are:
* NV_OK
* NV_ERR_INVALID_ARGUMENT
* NV_ERR_NOT_SUPPORTED
* NV_ERR_NO_MEMORY
* NV_ERR_OPERATING_SYSTEM
* NV_ERR_IN_USE
* NV_ERR_INVALID_OBJECT
* NV_ERR_INVALID_OBJECT_PARENT
*/
#define NV2080_CTRL_CMD_DMABUF_EXPORT_OBJECTS_TO_FD (0x20803a01) /* finn: Evaluated from "(FINN_NV20_SUBDEVICE_0_DMABUF_INTERFACE_ID << 8) | NV2080_CTRL_DMABUF_EXPORT_MEM_PARAMS_MESSAGE_ID" */
#define NV2080_CTRL_DMABUF_MAX_HANDLES 128
typedef struct NV2080_CTRL_DMABUF_MEM_HANDLE_INFO {
NvHandle hMemory;
NV_DECLARE_ALIGNED(NvU64 offset, 8);
NV_DECLARE_ALIGNED(NvU64 size, 8);
} NV2080_CTRL_DMABUF_MEM_HANDLE_INFO;
#define NV2080_CTRL_DMABUF_EXPORT_MEM_PARAMS_MESSAGE_ID (0x1U)
typedef struct NV2080_CTRL_DMABUF_EXPORT_MEM_PARAMS {
NvS32 fd;
NvU32 totalObjects;
NvU32 numObjects;
NvU32 index;
NV_DECLARE_ALIGNED(NvU64 totalSize, 8);
NV_DECLARE_ALIGNED(NV2080_CTRL_DMABUF_MEM_HANDLE_INFO handles[NV2080_CTRL_DMABUF_MAX_HANDLES], 8);
} NV2080_CTRL_DMABUF_EXPORT_MEM_PARAMS;
// _ctrl2080dmabuf_h_
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