mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
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b20c5f57e3
Use SPDX license GPL-V2.0 format and change Nvidia copyright year to include 2023. Bug 4078035 Change-Id: Icc0060431eb8d9c470a44f4cee50913cc1d8048a Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2890656 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Arun Swain <arswain@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2019-2023, NVIDIA CORPORATION. All rights reserved.
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*/
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#ifndef DCE_CLIENT_IPC_INTERNAL_H
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#define DCE_CLIENT_IPC_INTERNAL_H
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#include <linux/platform/tegra/dce/dce-client-ipc.h>
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/**
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* struct tegra_dce_client_ipc - Data Structure to hold client specific ipc
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* data pertaining to IPC type
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*
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* @valid : Tells if the client ipc data held by data structure is valid
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* @data : Pointer to any specific data passed by client during registration
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* for corresponding IPC type
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* @type : Corresponding IPC type as defined in CPU driver
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* @handle : Corresponding handle allocated for client during registration
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* @int_type : IPC interface type for above IPC type as defined in CPU driver
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* @d : pointer to OS agnostic dce struct. Stores all runtime info for dce
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* cluster elements
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* @recv_wait : condition variable used for IPC synchronization
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* @complete : atomic variable used for IPC synchronization
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* @callback_fn : function pointer to the callback function passed by the
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* client during registration
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*/
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struct tegra_dce_client_ipc {
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bool valid;
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void *data;
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uint32_t type;
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uint32_t handle;
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uint32_t int_type;
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struct tegra_dce *d;
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struct dce_cond recv_wait;
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atomic_t complete;
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tegra_dce_client_ipc_callback_t callback_fn;
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};
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#define DCE_MAX_ASYNC_WORK 8
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struct dce_async_work {
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struct tegra_dce *d;
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struct work_struct async_event_work;
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atomic_t in_use;
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};
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/**
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* @async_event_wq - Workqueue to process async events from DCE
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*/
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struct tegra_dce_async_ipc_info {
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struct workqueue_struct *async_event_wq;
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struct dce_async_work work[DCE_MAX_ASYNC_WORK];
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};
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void dce_client_ipc_wakeup(struct tegra_dce *d, u32 ch_type);
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int dce_client_ipc_wait(struct tegra_dce *d, u32 ch_type);
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int dce_client_init(struct tegra_dce *d);
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void dce_client_deinit(struct tegra_dce *d);
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#endif
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