mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
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26783b85bf
Rename os/linux/vidmem.c to os/linux/dmabuf_vidmem.c. The code is mainly dealing with interfacing with Linux dmabuf framework and its responsibilities got confused with common/mm/vidmem.c. Also move the header include/nvgpu/linux/vidmem.h to os/linux/dmabuf_vidmem.h. It does not expose any interface to outside Linux code. Change-Id: I2cb1057a8934d5cb5c5860023aa12f8f048a6684 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1768261 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
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* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __NVGPU_LINUX_DMABUF_VIDMEM_H__
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#define __NVGPU_LINUX_DMABUF_VIDMEM_H__
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#include <nvgpu/types.h>
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struct dma_buf;
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struct gk20a;
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struct scatterlist;
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#ifdef CONFIG_GK20A_VIDMEM
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struct gk20a *nvgpu_vidmem_buf_owner(struct dma_buf *dmabuf);
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int nvgpu_vidmem_export_linux(struct gk20a *g, size_t bytes);
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void nvgpu_vidmem_set_page_alloc(struct scatterlist *sgl, u64 addr);
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struct nvgpu_page_alloc *nvgpu_vidmem_get_page_alloc(struct scatterlist *sgl);
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int nvgpu_vidmem_buf_access_memory(struct gk20a *g, struct dma_buf *dmabuf,
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void *buffer, u64 offset, u64 size, u32 cmd);
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#else /* !CONFIG_GK20A_VIDMEM */
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static inline struct gk20a *nvgpu_vidmem_buf_owner(struct dma_buf *dmabuf)
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{
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return NULL;
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}
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static inline int nvgpu_vidmem_export_linux(struct gk20a *g, size_t bytes)
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{
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return -ENOSYS;
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}
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static inline void nvgpu_vidmem_set_page_alloc(struct scatterlist *sgl,
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u64 addr)
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{
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}
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static inline struct nvgpu_page_alloc *nvgpu_vidmem_get_page_alloc(
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struct scatterlist *sgl)
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{
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return NULL;
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}
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static inline int nvgpu_vidmem_buf_access_memory(struct gk20a *g,
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struct dma_buf *dmabuf,
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void *buffer, u64 offset,
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u64 size, u32 cmd)
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{
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return -ENOSYS;
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}
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#endif
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struct nvgpu_vidmem_linux {
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struct dma_buf *dmabuf;
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void *dmabuf_priv;
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void (*dmabuf_priv_delete)(void *);
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};
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#endif
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