acrn-hypervisor/hypervisor/include/common/schedule.h
Shuo A Liu a0154223f6 hv: clear NEED_RESCHEDULE flag in schedule
Now, need_reschedule will test_and_clear the bit NEED_RESCHEDULE in
schedule context, then call schedule. It is not a exact match with the
name.
This patch move the flag clearing into scheudle, and need_reschedule
just check and return.

Tracked-On: #1821
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-27 12:35:40 +08:00

51 lines
1.3 KiB
C

/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SCHEDULE_H
#define SCHEDULE_H
#define NEED_RESCHEDULE (1U)
#define NEED_OFFLINE (2U)
struct sched_object;
typedef void (*run_thread_t)(struct sched_object *obj);
typedef void (*prepare_switch_t)(struct sched_object *obj);
struct sched_object {
struct list_head run_list;
run_thread_t thread;
prepare_switch_t prepare_switch_out;
prepare_switch_t prepare_switch_in;
};
struct sched_context {
spinlock_t runqueue_lock;
struct list_head runqueue;
uint64_t flags;
struct sched_object *curr_obj;
spinlock_t scheduler_lock;
};
void init_scheduler(void);
void switch_to_idle(run_thread_t idle_thread);
void get_schedule_lock(uint16_t pcpu_id);
void release_schedule_lock(uint16_t pcpu_id);
void set_pcpu_used(uint16_t pcpu_id);
uint16_t allocate_pcpu(void);
void free_pcpu(uint16_t pcpu_id);
void add_to_cpu_runqueue(struct sched_object *obj, uint16_t pcpu_id);
void remove_from_cpu_runqueue(struct sched_object *obj, uint16_t pcpu_id);
void make_reschedule_request(uint16_t pcpu_id);
bool need_reschedule(uint16_t pcpu_id);
void make_pcpu_offline(uint16_t pcpu_id);
int32_t need_offline(uint16_t pcpu_id);
void schedule(void);
#endif /* SCHEDULE_H */