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drm/tegra: Add option for explicit syncpoint free

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Add kernel module parameter to enable a mode where syncpoints
must be freed explicitly (using the free IOCTL) or they will be
left dangling. This ensures that, for particularly locked down
configurations, a syncpoint will be forever left in an expected
state even if the process owning it dies -- for example another
process will not be able to allocate it.

Change-Id: I2f350c710775a296c70910df21e95737a36c6a45
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3284405
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Santosh BS <santoshb@nvidia.com>
This commit is contained in:
Mikko Perttunen
2025-01-15 07:24:36 +00:00
committed by Jon Hunter
parent 9feb2a4347
commit 48e383a1b9
3 changed files with 17 additions and 5 deletions
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drivers/gpu/drm/tegra/uapi.h
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@@ -1,5 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2020 NVIDIA Corporation */
/* Copyright (c) 2020-2025 NVIDIA Corporation */
#ifndef _TEGRA_DRM_UAPI_H
#define _TEGRA_DRM_UAPI_H