Include nvgpu headers

These are needed to build on NVIDIA's Jetson boards for the time
being. Only a couple structs are required, so it should be fairly
easy to remove this dependency at some point in the future.

1 files changed, 61 insertions, 0 deletions

diff --git a/include/nvgpu/barrier.h b/include/nvgpu/barrier.h
new file mode 100644
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+++ b/include/nvgpu/barrier.h
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+/*
+ * Copyright (c) 2017-2018, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/* This file contains NVGPU_* high-level abstractions for various
+ * memor-barrier operations available in linux/kernel. Every OS
+ * should provide their own OS specific calls under this common API
+ */
+
+#ifndef NVGPU_BARRIER_H
+#define NVGPU_BARRIER_H
+
+#ifdef __KERNEL__
+#include <nvgpu/linux/barrier.h>
+#elif defined(__NVGPU_POSIX__)
+#include <nvgpu/posix/barrier.h>
+#else
+#include <nvgpu_rmos/include/barrier.h>
+#endif
+
+#define nvgpu_mb()      __nvgpu_mb()
+#define nvgpu_rmb()     __nvgpu_rmb()
+#define nvgpu_wmb()     __nvgpu_wmb()
+
+#define nvgpu_smp_mb()  __nvgpu_smp_mb()
+#define nvgpu_smp_rmb() __nvgpu_smp_rmb()
+#define nvgpu_smp_wmb() __nvgpu_smp_wmb()
+
+#define nvgpu_read_barrier_depends() __nvgpu_read_barrier_depends()
+#define nvgpu_smp_read_barrier_depends() __nvgpu_smp_read_barrier_depends()
+
+#define NV_ACCESS_ONCE(x)       __NV_ACCESS_ONCE(x)
+
+/*
+ * Sometimes we want to prevent speculation.
+ */
+#ifdef __NVGPU_PREVENT_UNTRUSTED_SPECULATION
+#define nvgpu_speculation_barrier()     __nvgpu_speculation_barrier()
+#else
+#define nvgpu_speculation_barrier()
+#endif
+
+#endif /* NVGPU_BARRIER_H */