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gpu: nvgpu: Add tracking of dma_buf_attachment

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VM and CDE code assumes that dma_buf_attachment is stored as a pointer
in the private dma_buf_drvdata, so it is not tracked. In Linux trees
without dma_buf_*_drvdata() support this is not true, so change the
code to explicitly track dma_buf_attachment.

JIRA NVGPU-4

Change-Id: I692f05a19a6469195d5444a7e5ff6e92f77ae272
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1648004
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Terje Bergstrom
2018-01-25 13:35:22 -08:00
committed by mobile promotions
parent 8ca1a765ee
commit 9e283f9f40
5 changed files with 29 additions and 11 deletions
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4
drivers/gpu/nvgpu/include/nvgpu/linux/vm.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2017-2018, 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,
@@ -41,11 +41,13 @@ struct nvgpu_vm_area;
struct nvgpu_os_buffer {
struct dma_buf *dmabuf;
struct dma_buf_attachment *attachment;
struct device *dev;
};
struct nvgpu_mapped_buf_priv {
struct dma_buf *dmabuf;
struct dma_buf_attachment *attachment;
struct sg_table *sgt;
};