Open source GPL/LGPL release

drivers/gpu/nvgpu/os/linux/dmabuf_vidmem.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2017-2020, 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_DMABUF_VIDMEM_H
+#define NVGPU_DMABUF_VIDMEM_H
+
+#ifdef CONFIG_NVGPU_DGPU
+
+#include <nvgpu/types.h>
+
+struct dma_buf;
+
+struct gk20a;
+struct scatterlist;
+
+struct gk20a *nvgpu_vidmem_buf_owner(struct dma_buf *dmabuf);
+int nvgpu_vidmem_export_linux(struct gk20a *g, size_t bytes);
+
+void nvgpu_vidmem_set_page_alloc(struct scatterlist *sgl, u64 addr);
+struct nvgpu_page_alloc *nvgpu_vidmem_get_page_alloc(struct scatterlist *sgl);
+
+int nvgpu_vidmem_buf_access_memory(struct gk20a *g, struct dma_buf *dmabuf,
+		void *buffer, u64 offset, u64 size, u32 cmd);
+
+struct nvgpu_vidmem_linux {
+	struct dma_buf	*dmabuf;
+	void		*dmabuf_priv;
+	void		(*dmabuf_priv_delete)(void *);
+};
+
+#endif
+#endif