mirror of https://github.com/thesofproject/sof.git
124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright(c) 2016 Intel Corporation. All rights reserved.
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*
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* Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
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*/
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#ifndef __POSIX_RTOS_TASK_H__
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#define __POSIX_RTOS_TASK_H__
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#include <arch/schedule/task.h>
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#include <rtos/panic.h>
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#include <sof/list.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <rtos/kernel.h>
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#include <sof/lib/perf_cnt.h>
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struct comp_dev;
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struct sof;
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/** \brief Predefined LL task priorities. */
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#define SOF_TASK_PRI_HIGH 0 /* priority level 0 - high */
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#define SOF_TASK_PRI_MED 4 /* priority level 4 - medium */
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#define SOF_TASK_PRI_LOW 9 /* priority level 9 - low */
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/** \brief Predefined EDF task deadlines. */
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#define SOF_TASK_DEADLINE_IDLE UINT64_MAX
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#define SOF_TASK_DEADLINE_ALMOST_IDLE (SOF_TASK_DEADLINE_IDLE - 1)
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#define SOF_TASK_DEADLINE_NOW 0
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/** \brief Task counter initial value. */
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#define SOF_TASK_SKIP_COUNT 0xFFFFu
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/** \brief Task states. */
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enum task_state {
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SOF_TASK_STATE_INIT = 0,
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SOF_TASK_STATE_QUEUED,
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SOF_TASK_STATE_PENDING,
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SOF_TASK_STATE_RUNNING,
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SOF_TASK_STATE_PREEMPTED,
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SOF_TASK_STATE_COMPLETED,
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SOF_TASK_STATE_FREE,
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SOF_TASK_STATE_CANCEL,
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SOF_TASK_STATE_RESCHEDULE,
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};
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/** \brief Task operations. */
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struct task_ops {
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enum task_state (*run)(void *data); /**< task's main operation */
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void (*complete)(void *data); /**< executed on completion */
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uint64_t (*get_deadline)(void *data); /**< returns current deadline */
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};
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/** \brief Task used by schedulers. */
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struct task {
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uint64_t start; /**< start time in [ms] since now (LL only) */
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const struct sof_uuid_entry *uid; /**< Uuid */
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uint16_t type; /**< type of the task (LL or EDF) */
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uint16_t priority; /**< priority of the task (used by LL) */
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uint16_t core; /**< execution core */
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uint16_t flags; /**< custom flags */
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enum task_state state; /**< current state */
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void *data; /**< custom data passed to all ops */
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struct list_item list; /**< used by schedulers to hold tasks */
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void *priv_data; /**< task private data */
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struct task_ops ops; /**< task operations */
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#if defined(CONFIG_SCHEDULE_LOG_CYCLE_STATISTICS)
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uint32_t cycles_sum;
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uint32_t cycles_max;
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uint32_t cycles_cnt;
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#endif
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#if CONFIG_PERFORMANCE_COUNTERS
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struct perf_cnt_data pcd;
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#endif
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};
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static inline bool task_is_active(struct task *task)
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{
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switch (task->state) {
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case SOF_TASK_STATE_QUEUED:
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case SOF_TASK_STATE_PENDING:
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case SOF_TASK_STATE_RUNNING:
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case SOF_TASK_STATE_PREEMPTED:
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case SOF_TASK_STATE_RESCHEDULE:
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return true;
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default:
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return false;
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}
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}
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static inline enum task_state task_run(struct task *task)
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{
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assert(task->ops.run);
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return task->ops.run(task->data);
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}
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static inline void task_complete(struct task *task)
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{
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if (task->ops.complete)
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task->ops.complete(task->data);
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}
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static inline uint64_t task_get_deadline(struct task *task)
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{
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assert(task->ops.get_deadline);
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return task->ops.get_deadline(task->data);
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}
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enum task_state task_main_primary_core(void *data);
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enum task_state task_main_secondary_core(void *data);
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void task_main_init(void);
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void task_main_free(void);
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int task_main_start(struct sof *sof);
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int start_complete(void);
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#endif /* __POSIX_RTOS_TASK_H__ */
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