mirror of
https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
synced 2026-10-28 02:32:09 -04:00
qcacmn: Rename control path scheduler from sch to scheduler
Legacy protocol engine already has a module name 'sch' rename control path scheduler from sch to scheduler to avoid naming conflict with protocol sch. Change-Id: I94ce9aa5037aa75319aaad2287116462444c03f4 CRs-Fixed: 1105115
This commit is contained in:
Rajeev Kumar
qcabuildsw
parent
c098c33337
commit
cd39549564
4 changed files with 0 additions and 0 deletions
557
scheduler/src/scheduler_api.c
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557
scheduler/src/scheduler_api.c
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@ -0,0 +1,557 @@
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/*
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* Copyright (c) 2014-2016 The Linux Foundation. All rights reserved.
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*
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* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
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*
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* This file was originally distributed by Qualcomm Atheros, Inc.
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* under proprietary terms before Copyright ownership was assigned
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* to the Linux Foundation.
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*/
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#include <scheduler_api.h>
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#include <scheduler_core.h>
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static void scheduler_flush_mqs(struct scheduler_ctx *sched_ctx)
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{
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int i;
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/* Here each of the MC thread MQ shall be drained and returned to the
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* Core. Before returning a wrapper to the Core, the Scheduler message
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* shall be freed first
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*/
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO,
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("Flushing scheduler message queue"));
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if (!sched_ctx) {
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QDF_ASSERT(0);
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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"%s: sched_ctx is NULL", __func__);
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return;
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}
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for (i = 0; i < SCHEDULER_NUMBER_OF_MSG_QUEUE; i++)
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scheduler_cleanup_queues(sched_ctx, i);
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}
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static QDF_STATUS scheduler_close(struct scheduler_ctx *sched_ctx)
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{
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO_HIGH,
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"%s: invoked", __func__);
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if (!sched_ctx) {
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QDF_ASSERT(0);
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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"%s: sched_ctx == NULL", __func__);
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return QDF_STATUS_E_FAILURE;
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}
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/* shut down scheduler thread */
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qdf_set_bit(MC_SHUTDOWN_EVENT_MASK, &sched_ctx->sch_event_flag);
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qdf_set_bit(MC_POST_EVENT_MASK, &sched_ctx->sch_event_flag);
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qdf_wake_up_interruptible(&sched_ctx->sch_wait_queue);
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/* Wait for MC to exit */
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qdf_wait_single_event(&sched_ctx->sch_shutdown, 0);
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sched_ctx->sch_thread = 0;
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/* Clean up message queues of MC thread */
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scheduler_flush_mqs(sched_ctx);
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/* Deinit all the queues */
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scheduler_queues_deinit(sched_ctx);
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return QDF_STATUS_SUCCESS;
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}
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static QDF_STATUS scheduler_open(struct scheduler_ctx *sched_ctx)
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{
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO_HIGH,
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"%s: Opening the QDF Scheduler", __func__);
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/* Sanity checks */
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if (!sched_ctx) {
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QDF_ASSERT(0);
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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"%s: Null params being passed", __func__);
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return QDF_STATUS_E_FAILURE;
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}
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/* Initialize the helper events and event queues */
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qdf_event_create(&sched_ctx->sch_start_event);
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qdf_event_create(&sched_ctx->sch_shutdown);
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qdf_event_create(&sched_ctx->resume_sch_event);
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qdf_spinlock_create(&sched_ctx->sch_thread_lock);
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qdf_init_waitqueue_head(&sched_ctx->sch_wait_queue);
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sched_ctx->sch_event_flag = 0;
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/* Create the Scheduler Main Controller thread */
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sched_ctx->sch_thread = qdf_create_thread(scheduler_thread,
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sched_ctx, "scheduler_thread");
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if (IS_ERR(sched_ctx->sch_thread)) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_FATAL,
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"%s: Could not Create QDF Main Thread Controller",
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__func__);
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scheduler_queues_deinit(sched_ctx);
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return QDF_STATUS_E_RESOURCES;
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}
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/* start the thread here */
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qdf_wake_up_process(sched_ctx->sch_thread);
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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"%s: QDF Main Controller thread Created", __func__);
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/*
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* Now make sure all threads have started before we exit.
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* Each thread should normally ACK back when it starts.
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*/
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qdf_wait_single_event(&sched_ctx->sch_start_event, 0);
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/* We're good now: Let's get the ball rolling!!! */
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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"%s: Scheduler thread has started", __func__);
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return QDF_STATUS_SUCCESS;
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}
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QDF_STATUS scheduler_init(void)
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{
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QDF_STATUS status = QDF_STATUS_SUCCESS;
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struct scheduler_ctx *sched_ctx;
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO_HIGH,
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FL("Opening Scheduler"));
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status = scheduler_create_ctx();
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if (QDF_STATUS_SUCCESS != status) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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FL("can't create scheduler ctx"));
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return status;
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}
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sched_ctx = scheduler_get_context();
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status = scheduler_queues_init(sched_ctx);
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if (QDF_STATUS_SUCCESS != status) {
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QDF_ASSERT(0);
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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FL("Queue init failed"));
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scheduler_destroy_ctx();
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return status;
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}
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status = scheduler_open(sched_ctx);
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if (!QDF_IS_STATUS_SUCCESS(status)) {
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/* Critical Error ... Cannot proceed further */
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_FATAL,
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"Failed to open QDF Scheduler");
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QDF_ASSERT(0);
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scheduler_queues_deinit(sched_ctx);
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scheduler_destroy_ctx();
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}
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qdf_register_mc_timer_callback(scheduler_mc_timer_callback);
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return QDF_STATUS_SUCCESS;
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}
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QDF_STATUS scheduler_deinit(void)
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{
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QDF_STATUS status = QDF_STATUS_SUCCESS;
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO_HIGH,
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FL("Closing Scheduler"));
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status = scheduler_close(sched_ctx);
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if (QDF_STATUS_SUCCESS != status) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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FL("Scheduler close failed"));
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return status;
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}
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return scheduler_destroy_ctx();
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}
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QDF_STATUS scheduler_post_msg_by_priority(QDF_MODULE_ID qid,
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struct scheduler_msg *pMsg, bool is_high_priority)
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{
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uint8_t qidx;
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struct scheduler_mq_type *target_mq = NULL;
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struct scheduler_msg_wrapper *msg_wrapper = NULL;
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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if (!sched_ctx || !pMsg) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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"%s: Null params or global sch context is null",
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__func__);
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QDF_ASSERT(0);
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return QDF_STATUS_E_FAILURE;
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}
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/* Target_If is a special message queue in phase 3 convergence beacause
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* its used by both legacy WMA and as well as new UMAC components which
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* directly populate callback handlers in message body.
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* 1) WMA legacy messages should not have callback
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* 2) New target_if message needs to have valid callback
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* Clear callback handler for legacy WMA messages such that in case
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* if someone is sending legacy WMA message from stack which has
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* uninitialized callback then its handled properly. Also change
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* legacy WMA message queue id to target_if queue such that its always
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* handled in right order.
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*/
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if (QDF_MODULE_ID_WMA == qid) {
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pMsg->callback = NULL;
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/* change legacy WMA message id to new target_if mq id */
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qid = QDF_MODULE_ID_TARGET_IF;
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}
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qidx = sched_ctx->queue_ctx.scheduler_msg_qid_to_qidx[qid];
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if (qidx >= SCHEDULER_NUMBER_OF_MSG_QUEUE) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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FL("Scheduler is deinitialized ignore msg"));
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return QDF_STATUS_E_FAILURE;
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}
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if (!sched_ctx->queue_ctx.scheduler_msg_process_fn[qidx]) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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FL("callback not registered for qid[%d]"), qid);
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QDF_ASSERT(0);
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return QDF_STATUS_E_FAILURE;
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}
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target_mq = &(sched_ctx->queue_ctx.sch_msg_q[qidx]);
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QDF_ASSERT(target_mq);
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if (target_mq == NULL) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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"%s: target_mq == NULL", __func__);
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return QDF_STATUS_E_FAILURE;
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}
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/* Try and get a free Msg wrapper */
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msg_wrapper = scheduler_mq_get(&sched_ctx->queue_ctx.free_msg_q);
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if (NULL == msg_wrapper) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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FL("message wrapper empty"));
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return QDF_STATUS_E_RESOURCES;
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}
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/* Copy the message now */
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qdf_mem_copy((void *)msg_wrapper->msg_buf,
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(void *)pMsg, sizeof(struct scheduler_msg));
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if (is_high_priority)
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scheduler_mq_put_front(target_mq, msg_wrapper);
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else
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scheduler_mq_put(target_mq, msg_wrapper);
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qdf_set_bit(MC_POST_EVENT_MASK, &sched_ctx->sch_event_flag);
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qdf_wake_up_interruptible(&sched_ctx->sch_wait_queue);
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return QDF_STATUS_SUCCESS;
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}
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QDF_STATUS scheduler_register_module(QDF_MODULE_ID qid,
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scheduler_msg_process_fn_t callback)
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{
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struct scheduler_mq_ctx *ctx;
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO,
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FL("Enter"));
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if (!sched_ctx) {
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QDF_ASSERT(0);
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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FL("sched_ctx is NULL"));
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return QDF_STATUS_E_FAILURE;
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}
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if (sched_ctx->sch_last_qidx >= SCHEDULER_NUMBER_OF_MSG_QUEUE) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
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QDF_TRACE_LEVEL_ERROR,
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FL("Already registered max %d no of message queues"),
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SCHEDULER_NUMBER_OF_MSG_QUEUE);
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return QDF_STATUS_E_FAILURE;
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}
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ctx = &sched_ctx->queue_ctx;
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ctx->scheduler_msg_qid_to_qidx[qid] = sched_ctx->sch_last_qidx;
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ctx->sch_msg_q[sched_ctx->sch_last_qidx].qid = qid;
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ctx->scheduler_msg_process_fn[sched_ctx->sch_last_qidx] = callback;
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sched_ctx->sch_last_qidx++;
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO,
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FL("Exit"));
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return QDF_STATUS_SUCCESS;
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}
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QDF_STATUS scheduler_deregister_module(QDF_MODULE_ID qid)
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{
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struct scheduler_mq_ctx *ctx;
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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uint8_t qidx;
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO,
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FL("Enter"));
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if (!sched_ctx) {
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QDF_ASSERT(0);
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
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FL("sched_ctx is NULL"));
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return QDF_STATUS_E_FAILURE;
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}
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ctx = &sched_ctx->queue_ctx;
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qidx = ctx->scheduler_msg_qid_to_qidx[qid];
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ctx->scheduler_msg_process_fn[qidx] = NULL;
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ctx->scheduler_msg_qid_to_qidx[qidx] = SCHEDULER_NUMBER_OF_MSG_QUEUE;
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO,
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FL("Exit"));
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return QDF_STATUS_SUCCESS;
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}
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void scheduler_resume(void)
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{
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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if (sched_ctx)
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qdf_event_set(&sched_ctx->resume_sch_event);
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}
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void scheduler_register_hdd_suspend_callback(hdd_suspend_callback callback)
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{
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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if (sched_ctx)
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sched_ctx->hdd_callback = callback;
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}
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void scheduler_wake_up_controller_thread(void)
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{
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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if (sched_ctx)
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qdf_wake_up_interruptible(&sched_ctx->sch_wait_queue);
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}
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void scheduler_set_event_mask(uint32_t event_mask)
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{
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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if (sched_ctx)
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qdf_set_bit(event_mask, &sched_ctx->sch_event_flag);
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}
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void scheduler_clear_event_mask(uint32_t event_mask)
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{
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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if (sched_ctx)
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qdf_clear_bit(event_mask, &sched_ctx->sch_event_flag);
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}
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QDF_STATUS scheduler_target_if_mq_handler(struct scheduler_msg *msg)
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{
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QDF_STATUS status;
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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QDF_STATUS (*target_if_msg_handler)(struct scheduler_msg *);
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if (NULL == msg || NULL == sched_ctx) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
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QDF_TRACE_LEVEL_ERROR, FL("msg %p sch %p"),
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msg, sched_ctx);
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return QDF_STATUS_E_FAILURE;
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}
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target_if_msg_handler = msg->callback;
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/* Target_If is a special message queue in phase 3 convergence beacause
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* its used by both legacy WMA and as well as new UMAC components. New
|
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* UMAC components directly pass their message handlers as callback in
|
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* message body.
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* 1) All Legacy WMA messages do not contain message callback so invoke
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* registered legacy WMA handler. Scheduler message posting APIs
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* makes sure legacy WMA messages do not have callbacks.
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* 2) For new messages which have valid callbacks invoke their callbacks
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* directly.
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*/
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if (NULL == target_if_msg_handler)
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status = sched_ctx->legacy_wma_handler(msg);
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else
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status = target_if_msg_handler(msg);
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return status;
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}
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QDF_STATUS scheduler_os_if_mq_handler(struct scheduler_msg *msg)
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{
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QDF_STATUS (*os_if_msg_handler)(struct scheduler_msg *);
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if (NULL == msg) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
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QDF_TRACE_LEVEL_ERROR, FL("Msg is NULL"));
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return QDF_STATUS_E_FAILURE;
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}
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os_if_msg_handler = msg->callback;
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if (NULL == os_if_msg_handler) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
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QDF_TRACE_LEVEL_ERROR, FL("Msg callback is NULL"));
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QDF_ASSERT(0);
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return QDF_STATUS_E_FAILURE;
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}
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os_if_msg_handler(msg);
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return QDF_STATUS_SUCCESS;
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}
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QDF_STATUS scheduler_timer_q_mq_handler(struct scheduler_msg *msg)
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{
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QDF_STATUS status;
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struct scheduler_ctx *sched_ctx = scheduler_get_context();
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qdf_mc_timer_callback_t timer_q_msg_handler;
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if (NULL == msg || NULL == sched_ctx) {
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QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
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QDF_TRACE_LEVEL_ERROR, FL("msg %p sch %p"),
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msg, sched_ctx);
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return QDF_STATUS_E_FAILURE;
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}
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timer_q_msg_handler = msg->callback;
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/* Timer message handler */
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if (SYS_MSG_COOKIE == msg->reserved &&
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SYS_MSG_ID_MC_TIMER == msg->type) {
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if (timer_q_msg_handler) {
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status = QDF_STATUS_SUCCESS;
|
||||
timer_q_msg_handler(msg->bodyptr);
|
||||
} else {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR, FL("Timer cb is null"));
|
||||
status = QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
return status;
|
||||
} else {
|
||||
/* Legacy sys message handler */
|
||||
status = sched_ctx->legacy_sys_handler(msg);
|
||||
return status;
|
||||
}
|
||||
}
|
||||
|
||||
QDF_STATUS scheduler_register_wma_legacy_handler(scheduler_msg_process_fn_t
|
||||
wma_callback)
|
||||
{
|
||||
struct scheduler_ctx *sched_ctx = scheduler_get_context();
|
||||
|
||||
if (NULL == sched_ctx) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR, FL("scheduler context is null"));
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
|
||||
sched_ctx->legacy_wma_handler = wma_callback;
|
||||
|
||||
return QDF_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
QDF_STATUS scheduler_register_sys_legacy_handler(scheduler_msg_process_fn_t
|
||||
sys_callback)
|
||||
{
|
||||
struct scheduler_ctx *sched_ctx = scheduler_get_context();
|
||||
|
||||
if (NULL == sched_ctx) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR, FL("scheduler context is null"));
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
|
||||
sched_ctx->legacy_sys_handler = sys_callback;
|
||||
|
||||
return QDF_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
void scheduler_mc_timer_callback(unsigned long data)
|
||||
{
|
||||
qdf_mc_timer_t *timer = (qdf_mc_timer_t *)data;
|
||||
struct scheduler_msg msg;
|
||||
QDF_STATUS status;
|
||||
|
||||
qdf_mc_timer_callback_t callback = NULL;
|
||||
void *user_data = NULL;
|
||||
QDF_TIMER_TYPE type = QDF_TIMER_TYPE_SW;
|
||||
|
||||
QDF_ASSERT(timer);
|
||||
|
||||
if (timer == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s Null pointer passed in!", __func__);
|
||||
return;
|
||||
}
|
||||
|
||||
qdf_spin_lock_irqsave(&timer->platform_info.spinlock);
|
||||
|
||||
switch (timer->state) {
|
||||
case QDF_TIMER_STATE_STARTING:
|
||||
/* we are in this state because someone just started the timer,
|
||||
* MC timer got started and expired, but the time content have
|
||||
* not been updated this is a rare race condition!
|
||||
*/
|
||||
timer->state = QDF_TIMER_STATE_STOPPED;
|
||||
status = QDF_STATUS_E_ALREADY;
|
||||
break;
|
||||
|
||||
case QDF_TIMER_STATE_STOPPED:
|
||||
status = QDF_STATUS_E_ALREADY;
|
||||
break;
|
||||
|
||||
case QDF_TIMER_STATE_UNUSED:
|
||||
status = QDF_STATUS_E_EXISTS;
|
||||
break;
|
||||
|
||||
case QDF_TIMER_STATE_RUNNING:
|
||||
/* need to go to stop state here because the call-back function
|
||||
* may restart timer (to emulate periodic timer)
|
||||
*/
|
||||
timer->state = QDF_TIMER_STATE_STOPPED;
|
||||
/* copy the relevant timer information to local variables;
|
||||
* once we exits from this critical section, the timer content
|
||||
* may be modified by other tasks
|
||||
*/
|
||||
callback = timer->callback;
|
||||
user_data = timer->user_data;
|
||||
type = timer->type;
|
||||
status = QDF_STATUS_SUCCESS;
|
||||
break;
|
||||
|
||||
default:
|
||||
QDF_ASSERT(0);
|
||||
status = QDF_STATUS_E_FAULT;
|
||||
break;
|
||||
}
|
||||
|
||||
qdf_spin_unlock_irqrestore(&timer->platform_info.spinlock);
|
||||
|
||||
if (QDF_STATUS_SUCCESS != status) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"TIMER callback called in a wrong state=%d",
|
||||
timer->state);
|
||||
return;
|
||||
}
|
||||
|
||||
qdf_try_allowing_sleep(type);
|
||||
|
||||
if (callback == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: No TIMER callback, Couldn't enqueue timer to any queue",
|
||||
__func__);
|
||||
QDF_ASSERT(0);
|
||||
return;
|
||||
}
|
||||
|
||||
/* serialize to scheduler controller thread */
|
||||
msg.type = SYS_MSG_ID_MC_TIMER;
|
||||
msg.reserved = SYS_MSG_COOKIE;
|
||||
msg.callback = callback;
|
||||
msg.bodyptr = user_data;
|
||||
msg.bodyval = 0;
|
||||
|
||||
if (scheduler_post_msg(QDF_MODULE_ID_SYS, &msg) == QDF_STATUS_SUCCESS)
|
||||
return;
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: Could not enqueue timer to timer queue", __func__);
|
||||
}
|
||||
445
scheduler/src/scheduler_core.c
Normal file
445
scheduler/src/scheduler_core.c
Normal file
|
|
@ -0,0 +1,445 @@
|
|||
/*
|
||||
* Copyright (c) 2014-2016 The Linux Foundation. All rights reserved.
|
||||
*
|
||||
* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
|
||||
*
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for
|
||||
* any purpose with or without fee is hereby granted, provided that the
|
||||
* above copyright notice and this permission notice appear in all
|
||||
* copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
|
||||
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
|
||||
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
||||
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
||||
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
||||
* PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* This file was originally distributed by Qualcomm Atheros, Inc.
|
||||
* under proprietary terms before Copyright ownership was assigned
|
||||
* to the Linux Foundation.
|
||||
*/
|
||||
|
||||
#include <scheduler_core.h>
|
||||
|
||||
static struct scheduler_ctx *gp_sched_ctx;
|
||||
|
||||
QDF_STATUS scheduler_create_ctx(void)
|
||||
{
|
||||
if (gp_sched_ctx) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
FL("there is a already gp_sched_ctx mem allocated"));
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
|
||||
gp_sched_ctx = qdf_mem_malloc(sizeof(struct scheduler_ctx));
|
||||
if (!gp_sched_ctx) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
FL("gp_sched_ctx can't alloc mememory"));
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
return QDF_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
QDF_STATUS scheduler_destroy_ctx(void)
|
||||
{
|
||||
if (gp_sched_ctx)
|
||||
qdf_mem_free(gp_sched_ctx);
|
||||
gp_sched_ctx = NULL;
|
||||
return QDF_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
struct scheduler_ctx *scheduler_get_context(void)
|
||||
{
|
||||
return gp_sched_ctx;
|
||||
}
|
||||
|
||||
|
||||
static QDF_STATUS scheduler_all_queues_init(
|
||||
struct scheduler_ctx *sched_ctx)
|
||||
{
|
||||
QDF_STATUS status = QDF_STATUS_SUCCESS;
|
||||
int i;
|
||||
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR, FL("enter"));
|
||||
if (!sched_ctx) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: Null params being passed", __func__);
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
|
||||
status = scheduler_mq_init(&sched_ctx->queue_ctx.free_msg_q);
|
||||
if (QDF_STATUS_SUCCESS != status)
|
||||
return status;
|
||||
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR, FL("free msg queue init complete"));
|
||||
|
||||
/* Initialize all message queues */
|
||||
for (i = 0; i < SCHEDULER_NUMBER_OF_MSG_QUEUE; i++) {
|
||||
status = scheduler_mq_init(
|
||||
&sched_ctx->queue_ctx.sch_msg_q[i]);
|
||||
if (QDF_STATUS_SUCCESS != status)
|
||||
return status;
|
||||
}
|
||||
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR, FL("exit"));
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
|
||||
static QDF_STATUS scheduler_all_queues_deinit(
|
||||
struct scheduler_ctx *sched_ctx)
|
||||
{
|
||||
QDF_STATUS status = QDF_STATUS_SUCCESS;
|
||||
int i;
|
||||
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR, FL("enter"));
|
||||
if (!sched_ctx) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: Null params being passed", __func__);
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
|
||||
scheduler_mq_deinit(&sched_ctx->queue_ctx.free_msg_q);
|
||||
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR, FL("free msg queue inited"));
|
||||
|
||||
/* De-Initialize all message queues */
|
||||
for (i = 0; i < SCHEDULER_NUMBER_OF_MSG_QUEUE; i++)
|
||||
scheduler_mq_deinit(&sched_ctx->queue_ctx.sch_msg_q[i]);
|
||||
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR, FL("exit"));
|
||||
return status;
|
||||
}
|
||||
|
||||
QDF_STATUS scheduler_mq_init(struct scheduler_mq_type *msg_q)
|
||||
{
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR, FL("Enter"));
|
||||
if (msg_q == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: NULL pointer passed", __func__);
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
/* Now initialize the lock */
|
||||
qdf_spinlock_create(&msg_q->mq_lock);
|
||||
/* Now initialize the List data structure */
|
||||
qdf_list_create(&msg_q->mq_list, SCHEDULER_CORE_MAX_MESSAGES);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR, FL("Exit"));
|
||||
|
||||
return QDF_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
void scheduler_mq_deinit(struct scheduler_mq_type *msg_q)
|
||||
{
|
||||
if (msg_q == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: NULL pointer passed", __func__);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void scheduler_mq_put(struct scheduler_mq_type *msg_q,
|
||||
struct scheduler_msg_wrapper *msg_wrapper)
|
||||
{
|
||||
if (msg_q == NULL || msg_wrapper == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: NULL pointer passed", __func__);
|
||||
return;
|
||||
}
|
||||
qdf_spin_lock_irqsave(&msg_q->mq_lock);
|
||||
qdf_list_insert_back(&msg_q->mq_list, &msg_wrapper->msg_node);
|
||||
qdf_spin_unlock_irqrestore(&msg_q->mq_lock);
|
||||
|
||||
}
|
||||
|
||||
void scheduler_mq_put_front(struct scheduler_mq_type *msg_q,
|
||||
struct scheduler_msg_wrapper *msg_wrapper)
|
||||
{
|
||||
if ((msg_q == NULL) || (msg_wrapper == NULL)) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: NULL pointer passed", __func__);
|
||||
return;
|
||||
}
|
||||
qdf_spin_lock_irqsave(&msg_q->mq_lock);
|
||||
qdf_list_insert_front(&msg_q->mq_list, &msg_wrapper->msg_node);
|
||||
qdf_spin_unlock_irqrestore(&msg_q->mq_lock);
|
||||
}
|
||||
|
||||
struct scheduler_msg_wrapper *scheduler_mq_get(struct scheduler_mq_type *msg_q)
|
||||
{
|
||||
qdf_list_node_t *listptr;
|
||||
struct scheduler_msg_wrapper *msg_wrapper = NULL;
|
||||
|
||||
if (msg_q == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: NULL pointer passed", __func__);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
qdf_spin_lock_irqsave(&msg_q->mq_lock);
|
||||
if (qdf_list_empty(&msg_q->mq_list)) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_WARN,
|
||||
"%s: Scheduler Message Queue is empty", __func__);
|
||||
} else {
|
||||
listptr = msg_q->mq_list.anchor.next;
|
||||
msg_wrapper = (struct scheduler_msg_wrapper *)
|
||||
qdf_container_of(listptr,
|
||||
struct scheduler_msg_wrapper,
|
||||
msg_node);
|
||||
qdf_list_remove_node(&msg_q->mq_list, listptr);
|
||||
}
|
||||
qdf_spin_unlock_irqrestore(&msg_q->mq_lock);
|
||||
return msg_wrapper;
|
||||
|
||||
}
|
||||
|
||||
bool scheduler_is_mq_empty(struct scheduler_mq_type *msg_q)
|
||||
{
|
||||
bool is_empty = false;
|
||||
|
||||
if (msg_q == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: NULL pointer passed", __func__);
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
qdf_spin_lock_irqsave(&msg_q->mq_lock);
|
||||
is_empty = qdf_list_empty(&msg_q->mq_list) ? true : false;
|
||||
qdf_spin_unlock_irqrestore(&msg_q->mq_lock);
|
||||
return is_empty;
|
||||
}
|
||||
|
||||
QDF_STATUS scheduler_queues_deinit(struct scheduler_ctx *sched_ctx)
|
||||
{
|
||||
return scheduler_all_queues_deinit(sched_ctx);
|
||||
}
|
||||
|
||||
QDF_STATUS scheduler_queues_init(struct scheduler_ctx *sched_ctx)
|
||||
{
|
||||
QDF_STATUS status = QDF_STATUS_E_FAILURE;
|
||||
int i;
|
||||
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR, FL("Enter"));
|
||||
if (!sched_ctx) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: Null params being passed", __func__);
|
||||
return QDF_STATUS_E_FAILURE;
|
||||
}
|
||||
status = scheduler_all_queues_init(sched_ctx);
|
||||
if (QDF_STATUS_SUCCESS != status) {
|
||||
scheduler_all_queues_deinit(sched_ctx);
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_FATAL,
|
||||
FL("Failed to initialize the msg queues"));
|
||||
return status;
|
||||
}
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR, FL("Queue init passed"));
|
||||
|
||||
for (i = 0; i < SCHEDULER_CORE_MAX_MESSAGES; i++) {
|
||||
(sched_ctx->queue_ctx.msg_wrappers[i]).msg_buf =
|
||||
&(sched_ctx->queue_ctx.msg_buffers[i]);
|
||||
qdf_init_list_head(
|
||||
&sched_ctx->queue_ctx.msg_wrappers[i].msg_node);
|
||||
scheduler_mq_put(&sched_ctx->queue_ctx.free_msg_q,
|
||||
&(sched_ctx->queue_ctx.msg_wrappers[i]));
|
||||
}
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR, FL("Exit"));
|
||||
return status;
|
||||
}
|
||||
|
||||
static void scheduler_core_return_msg(struct scheduler_ctx *sch_ctx,
|
||||
struct scheduler_msg_wrapper *msg_wrapper)
|
||||
{
|
||||
if (!sch_ctx) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: gp_cds_context != p_cds_context", __func__);
|
||||
return;
|
||||
}
|
||||
|
||||
QDF_ASSERT(NULL != msg_wrapper);
|
||||
|
||||
if (msg_wrapper == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
FL("msg_wrapper == NULL in function"));
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
* Return the message on the free message queue
|
||||
*/
|
||||
qdf_init_list_head(&msg_wrapper->msg_node);
|
||||
scheduler_mq_put(&sch_ctx->queue_ctx.free_msg_q, msg_wrapper);
|
||||
}
|
||||
|
||||
static void scheduler_thread_process_queues(struct scheduler_ctx *sch_ctx,
|
||||
bool *shutdown)
|
||||
{
|
||||
int i;
|
||||
QDF_STATUS vStatus = QDF_STATUS_E_FAILURE;
|
||||
struct scheduler_msg_wrapper *pMsgWrapper = NULL;
|
||||
|
||||
if (!sch_ctx) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
FL("sch_ctx null"));
|
||||
return;
|
||||
}
|
||||
|
||||
/* start with highest priority queue : timer queue at index 0 */
|
||||
i = 0;
|
||||
while (i < SCHEDULER_NUMBER_OF_MSG_QUEUE) {
|
||||
/* Check if MC needs to shutdown */
|
||||
if (qdf_test_bit(MC_SHUTDOWN_EVENT_MASK,
|
||||
&sch_ctx->sch_event_flag)) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: scheduler thread signaled to shutdown",
|
||||
__func__);
|
||||
*shutdown = true;
|
||||
/* Check for any Suspend Indication */
|
||||
if (qdf_test_and_clear_bit(MC_SUSPEND_EVENT_MASK,
|
||||
&sch_ctx->sch_event_flag)) {
|
||||
/* Unblock anyone waiting on suspend */
|
||||
if (gp_sched_ctx->hdd_callback)
|
||||
gp_sched_ctx->hdd_callback();
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (scheduler_is_mq_empty(&sch_ctx->queue_ctx.sch_msg_q[i])) {
|
||||
/* check next queue */
|
||||
i++;
|
||||
continue;
|
||||
}
|
||||
pMsgWrapper =
|
||||
scheduler_mq_get(&sch_ctx->queue_ctx.sch_msg_q[i]);
|
||||
if (pMsgWrapper == NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: pMsgWrapper is NULL", __func__);
|
||||
QDF_ASSERT(0);
|
||||
return;
|
||||
}
|
||||
if (sch_ctx->queue_ctx.scheduler_msg_process_fn[i]) {
|
||||
vStatus = sch_ctx->queue_ctx.
|
||||
scheduler_msg_process_fn[i](
|
||||
pMsgWrapper->msg_buf);
|
||||
if (QDF_IS_STATUS_ERROR(vStatus)) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER,
|
||||
QDF_TRACE_LEVEL_ERROR,
|
||||
FL("Failed processing Qid[%d] message"),
|
||||
sch_ctx->queue_ctx.sch_msg_q[i].qid);
|
||||
}
|
||||
/* return message to the Core */
|
||||
scheduler_core_return_msg(sch_ctx, pMsgWrapper);
|
||||
}
|
||||
|
||||
/* start again with highest priority queue at index 0 */
|
||||
i = 0;
|
||||
continue;
|
||||
}
|
||||
/* Check for any Suspend Indication */
|
||||
if (qdf_test_and_clear_bit(MC_SUSPEND_EVENT_MASK,
|
||||
&sch_ctx->sch_event_flag)) {
|
||||
qdf_spin_lock(&sch_ctx->sch_thread_lock);
|
||||
qdf_event_reset(&sch_ctx->resume_sch_event);
|
||||
/* controller thread suspend completion callback */
|
||||
if (gp_sched_ctx->hdd_callback)
|
||||
gp_sched_ctx->hdd_callback();
|
||||
qdf_spin_unlock(&sch_ctx->sch_thread_lock);
|
||||
/* Wait for resume indication */
|
||||
qdf_wait_single_event(&sch_ctx->resume_sch_event, 0);
|
||||
}
|
||||
|
||||
return; /* Nothing to process wait on wait queue */
|
||||
}
|
||||
|
||||
int scheduler_thread(void *arg)
|
||||
{
|
||||
struct scheduler_ctx *sch_ctx = (struct scheduler_ctx *)arg;
|
||||
int retWaitStatus = 0;
|
||||
bool shutdown = false;
|
||||
|
||||
if (arg == NULL) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: Bad Args passed", __func__);
|
||||
return 0;
|
||||
}
|
||||
qdf_set_user_nice(current, -2);
|
||||
|
||||
/* Ack back to the context from which the main controller thread
|
||||
* has been created
|
||||
*/
|
||||
qdf_event_set(&sch_ctx->sch_start_event);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: scheduler_thread %d (%s) starting up", __func__, current->pid,
|
||||
current->comm);
|
||||
|
||||
while (!shutdown) {
|
||||
/* This implements the execution model algorithm */
|
||||
retWaitStatus = qdf_wait_queue_interruptible(
|
||||
sch_ctx->sch_wait_queue,
|
||||
qdf_test_bit(MC_POST_EVENT_MASK,
|
||||
&sch_ctx->sch_event_flag) ||
|
||||
qdf_test_bit(MC_SUSPEND_EVENT_MASK,
|
||||
&sch_ctx->sch_event_flag));
|
||||
|
||||
if (retWaitStatus == -ERESTARTSYS) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: wait_event_interruptible returned -ERESTARTSYS",
|
||||
__func__);
|
||||
QDF_BUG(0);
|
||||
}
|
||||
qdf_clear_bit(MC_POST_EVENT_MASK, &sch_ctx->sch_event_flag);
|
||||
scheduler_thread_process_queues(sch_ctx, &shutdown);
|
||||
}
|
||||
/* If we get here the MC thread must exit */
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: Scheduler thread exiting!!!!", __func__);
|
||||
qdf_event_set(&sch_ctx->sch_shutdown);
|
||||
qdf_exit_thread(QDF_STATUS_SUCCESS);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void scheduler_cleanup_queues(struct scheduler_ctx *sch_ctx, int idx)
|
||||
{
|
||||
struct scheduler_msg_wrapper *msg_wrapper = NULL;
|
||||
|
||||
if (!sch_ctx) {
|
||||
QDF_ASSERT(0);
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_ERROR,
|
||||
"%s: Null params being passed", __func__);
|
||||
return;
|
||||
}
|
||||
|
||||
while ((msg_wrapper =
|
||||
scheduler_mq_get(&sch_ctx->queue_ctx.sch_msg_q[idx]))) {
|
||||
if (msg_wrapper->msg_buf != NULL) {
|
||||
QDF_TRACE(QDF_MODULE_ID_SCHEDULER, QDF_TRACE_LEVEL_INFO,
|
||||
"%s: Freeing MC WMA MSG message type %d",
|
||||
__func__, msg_wrapper->msg_buf->type);
|
||||
if (msg_wrapper->msg_buf->bodyptr)
|
||||
qdf_mem_free(
|
||||
(void *)msg_wrapper->msg_buf->bodyptr);
|
||||
msg_wrapper->msg_buf->bodyptr = NULL;
|
||||
msg_wrapper->msg_buf->bodyval = 0;
|
||||
msg_wrapper->msg_buf->type = 0;
|
||||
}
|
||||
scheduler_core_return_msg(sch_ctx, msg_wrapper);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue