1 files changed, 63 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/thread.c b/drivers/gpu/nvgpu/os/linux/thread.c
new file mode 100644
index 00000000..92c556f2
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/thread.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2017, 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>
+
+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);
+};