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5535897d3d
Use SPDX license GPL-V2.0 format and change Nvidia copyright year to include 2023. Bug 4078035 Change-Id: I73edd8699dc7298ecb6efc991bc74c1b1e089d0d Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2891236 Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2018-2023, NVIDIA Corporation. All rights reserved.
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*
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* Tegra PVA/DLA fence support
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*/
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#ifndef LINUX_NVDEV_FENCE_H
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#define LINUX_NVDEV_FENCE_H
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#include <linux/types.h>
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/* used for the recording with keventlib */
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enum nvdev_fence_kind {
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NVDEV_FENCE_KIND_PRE = 0,
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NVDEV_FENCE_KIND_POST
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};
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/**
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* struct nvdev_fence structure for passing fence information
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*
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* @type: Type of the fence (syncpoint, sync fd or semaphore)
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* @type: fence action (wait or signal)
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* @syncpoint_index: Syncpoint id
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* @syncpoint_value: Value of syncpoint id
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* @sync_fd: Linux sync FD handle
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* @semaphore_handle: File handle to the semaphore memory buffer
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* @semaphore_offset: Offset to the semaphore within the buffer
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* @semaphore_value: Value of the semaphore
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*/
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struct nvdev_fence {
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__u32 type;
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#define NVDEV_FENCE_TYPE_SYNCPT 0
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#define NVDEV_FENCE_TYPE_SYNC_FD 1
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#define NVDEV_FENCE_TYPE_SEMAPHORE 2
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#define NVDEV_FENCE_TYPE_SEMAPHORE_TS 3
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__u32 action;
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#define NVDEV_FENCE_WAIT 0
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#define NVDEV_FENCE_SIGNAL 1
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#define NVDEV_FENCE_SIGNAL_STRIDE 2
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__u32 syncpoint_index;
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__u32 syncpoint_value;
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__u32 sync_fd;
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__u32 semaphore_handle;
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__u32 semaphore_offset;
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__u32 semaphore_value;
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};
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#endif /* LINUX_NVDEV_FENCE_H */
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