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/*
* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kthread.h>
#include <nvgpu/thread.h>
#include <nvgpu/timers.h>
int nvgpu_thread_proxy(void *threaddata)
{
struct nvgpu_thread *thread = threaddata;
int ret = thread->fn(thread->data);
thread->running = false;
return ret;
}
int nvgpu_thread_create(struct nvgpu_thread *thread,
void *data,
int (*threadfn)(void *data), const char *name)
{
struct task_struct *task = kthread_create(nvgpu_thread_proxy,
thread, name);
if (IS_ERR(task))
return PTR_ERR(task);
thread->task = task;
thread->fn = threadfn;
thread->data = data;
thread->running = true;
wake_up_process(task);
return 0;
};
void nvgpu_thread_stop(struct nvgpu_thread *thread)
{
if (thread->task) {
kthread_stop(thread->task);
thread->task = NULL;
}
};
bool nvgpu_thread_should_stop(struct nvgpu_thread *thread)
{
return kthread_should_stop();
};
bool nvgpu_thread_is_running(struct nvgpu_thread *thread)
{
return ACCESS_ONCE(thread->running);
};
void nvgpu_thread_join(struct nvgpu_thread *thread)
{
while (ACCESS_ONCE(thread->running))
nvgpu_msleep(10);
};
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