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92ac7bc35a
Port camera drivers below from /kenrel/nvidia to /kernel/nvidia-oot as OOT modules: - Fusa-capture driver - Tegra V4L2 framework driver - vi/csi driver - tegra camera platform driver Change-Id: I390af27096425bb11e0934201dd1a90f001bb3fa Signed-off-by: Frank Chen <frankc@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2780698 Reviewed-by: FNU Raunak <fraunak@nvidia.com> Reviewed-by: Ankur Pawar <ankurp@nvidia.com> Reviewed-by: Shiva Dubey <sdubey@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
121 lines
2.5 KiB
C
121 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* nvcamera_log.c - general tracing function for vi and isp API calls
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*
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* Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.
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*/
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#include "nvcamera_log.h"
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#include <linux/nvhost.h>
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#include <linux/platform_device.h>
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#include <uapi/linux/nvhost_events.h>
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/*
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* Set to 1 to enable additional kernel API traces
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*/
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#define NVCAM_ENABLE_EXTRA_TRACES 0
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#if defined(CONFIG_EVENTLIB)
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#include <linux/keventlib.h>
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/*
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* Camera "task submission" event enabled by default
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*/
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void nv_camera_log_submit(struct platform_device *pdev,
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u32 syncpt_id,
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u32 syncpt_thresh,
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u32 channel_id,
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u64 timestamp)
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{
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struct nvhost_device_data *pdata = platform_get_drvdata(pdev);
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struct nvhost_task_submit task_submit;
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if (!pdata->eventlib_id)
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return;
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/*
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* Write task submit event
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*/
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task_submit.syncpt_id = syncpt_id;
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task_submit.syncpt_thresh = syncpt_thresh;
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task_submit.channel_id = channel_id;
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task_submit.class_id = pdata->class;
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/*
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* Eventlib events are meant to be matched with their userspace
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* analogues. Instead of the PID as (this) thread's ID use the
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* inherited thread group ID. For the reported TID use this thread's
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* ID (i.e. PID).
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*/
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task_submit.tid = current->pid;
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task_submit.pid = current->tgid;
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keventlib_write(pdata->eventlib_id,
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&task_submit,
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sizeof(task_submit),
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NVHOST_TASK_SUBMIT,
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timestamp);
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}
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#else
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void nv_camera_log_submit(struct platform_device *pdev,
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u32 syncpt_id,
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u32 syncpt_thresh,
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u32 channel_id,
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u64 timestamp)
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{
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}
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#endif
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EXPORT_SYMBOL_GPL(nv_camera_log_submit);
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#if defined(CONFIG_EVENTLIB) && NVCAM_ENABLE_EXTRA_TRACES
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#include <linux/keventlib.h>
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/*
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* Additional camera traces disabled by default
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*/
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void nv_camera_log(struct platform_device *pdev,
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u64 timestamp,
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u32 type)
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{
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struct nvhost_device_data *pdata = platform_get_drvdata(pdev);
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struct nv_camera_task_log task_log;
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if (!pdata->eventlib_id)
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return;
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/*
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* Write task log event
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*/
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task_log.class_id = pdata->class;
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/*
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* Eventlib events are meant to be matched with their userspace
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* analogues. Instead of the PID as (this) thread's ID use the
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* inherited thread group ID. For the reported TID use this thread's
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* ID (i.e. PID).
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*/
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task_log.tid = current->pid;
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task_log.pid = current->tgid;
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keventlib_write(pdata->eventlib_id,
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&task_log,
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sizeof(task_log),
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type,
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timestamp);
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}
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#else
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void nv_camera_log(struct platform_device *pdev,
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u64 timestamp,
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u32 type)
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{
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}
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#endif
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EXPORT_SYMBOL_GPL(nv_camera_log);
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