1 files changed, 96 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/cond.h b/drivers/gpu/nvgpu/include/nvgpu/cond.h
new file mode 100644
index 00000000..9cd2c93f
--- /dev/null
+++ b/drivers/gpu/nvgpu/include/nvgpu/cond.h
@@ -0,0 +1,96 @@
+/*
+ * 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/>.
+ */
+
+#ifndef __NVGPU_COND_H__
+#define __NVGPU_COND_H__
+
+#ifdef __KERNEL__
+#include <nvgpu/linux/cond.h>
+#endif
+
+/*
+ * struct nvgpu_cond
+ *
+ * Should be implemented per-OS in a separate library
+ */
+struct nvgpu_cond;
+
+/**
+ * nvgpu_cond_init - Initialize a condition variable
+ *
+ * @cond - The condition variable to initialize
+ *
+ * Initialize a condition variable before using it.
+ */
+int nvgpu_cond_init(struct nvgpu_cond *cond);
+
+/**
+ * nvgpu_cond_signal - Signal a condition variable
+ *
+ * @cond - The condition variable to signal
+ *
+ * Wake up a waiter for a condition variable to check if its condition has been
+ * satisfied.
+ *
+ * The waiter is using an uninterruptible wait.
+ */
+int nvgpu_cond_signal(struct nvgpu_cond *cond);
+
+/**
+ * nvgpu_cond_signal_interruptible - Signal a condition variable
+ *
+ * @cond - The condition variable to signal
+ *
+ * Wake up a waiter for a condition variable to check if its condition has been
+ * satisfied.
+ *
+ * The waiter is using an interruptible wait.
+ */
+int nvgpu_cond_signal_interruptible(struct nvgpu_cond *cond);
+
+/**
+ * nvgpu_cond_broadcast - Signal all waiters of a condition variable
+ *
+ * @cond - The condition variable to signal
+ *
+ * Wake up all waiters for a condition variable to check if their conditions
+ * have been satisfied.
+ *
+ * The waiters are using an uninterruptible wait.
+ */
+int nvgpu_cond_broadcast(struct nvgpu_cond *cond);
+
+/**
+ * nvgpu_cond_broadcast_interruptible - Signal all waiters of a condition
+ * variable
+ *
+ * @cond - The condition variable to signal
+ *
+ * Wake up all waiters for a condition variable to check if their conditions
+ * have been satisfied.
+ *
+ * The waiters are using an interruptible wait.
+ */
+int nvgpu_cond_broadcast_interruptible(struct nvgpu_cond *cond);
+
+/**
+ * nvgpu_cond_destroy - Destroy a condition variable
+ *
+ * @cond - The condition variable to destroy
+ */
+void nvgpu_cond_destroy(struct nvgpu_cond *cond);
+
+#endif /* __NVGPU_COND_H__ */