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2bed40f6fe
- dce-os-worker.c/.h module exposes functionality which allows
DCE KMD clients to wait/signal events.
- The current abstraction of this module has following drawbacks
which this change attempts to address:
* Name: dce-os-worker is a misnomer
- Rename to dce-wait-cond.c/.h and make it a dce-kmd core file.
- Rename functions accordingly.
* dce-os-worker module initializes data structures from tegra_dce
which makes it ineligible for re-use.
- dce-client-ipc can re-use this module as it uses exact
same functionality.
- But this module is tied with DCE-KMD core such that it has
functions that operate on fixed known inputs.
- dce_os_work_cond_sw_resource_init/deinit()
Inits/Deinits most but not all condition var resources
from tegra_dce. Eg. dce-client-ipc resources
are not initialized.
- Move this function to new core file:dce-waiters.c
- All other functions require msg_id as input and can only
operate on DCE_WAIT* resources making it ineligible
to be used by other clients like dce-client-ipc.
- Refactor these fucntions to operate on
individual wait conditions so that all DCE-KMD
core modules can reuse them.
- Additionally, this change will also remove unused functions
and macros from dce-os-cond.c/.h
- dce-client-ipc will also switch to use dce-wait-cond interface
for client ipc waits.
- Make dce-os-cond.h a common file and move OS specific impl
to dce-os-cond-internal.h
JIRA TDS-16581
Change-Id: Ie8c6ec724e48cde66917fab4aa43e7da464ef8fb
Signed-off-by: anupamg <anupamg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3258562
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* SPDX-FileCopyrightText: Copyright (c) 2019-2025 NVIDIA CORPORATION & AFFILIATES. 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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#include <dce-os-atomic.h>
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#include <dce-os-work.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 : wait condition 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_wait_cond recv_wait;
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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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dce_os_work_handle_t async_event_work;
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dce_os_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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dce_os_wq_handle_t 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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