Files
linux-nvgpu/drivers/gpu/nvgpu/common/linux/dmabuf.h
Alex Waterman 3fdb6d2e31 gpu: nvgpu: Remove Linux headers from mm_gk20a.h
Delte the Linux headers and make some modifications to get rid of the
minor compilation issues that resulted.

  - Add <linux/iommu.h> to os_linux.h
  - Delete #if 0 code that "flushed" a buffer in gr_gk20a.c
  - Delete FLUSH_CPU_DCACHE() macro
  - Move the cache flush definitions to <nvgpu/linux/vm.h>
    and include this header in sim_gk20a.c. This file will
    not be used by QNX so this should be fine.
  - Add <linux/pci_ids.h> to gp106/bios_gp106.c and
    gp106/mclk_gp106.c.
  - Move function to common/linux/dmabuf.h since it is a
    dmabuf related function and uses a struct device pointer
    as an argument.

JIRA NVGPU-30

Change-Id: I11f56b98524c7fac3efa91b4686592130e5f8a46
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1585510
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2017-10-27 14:45:58 -07:00

77 lines
2.2 KiB
C

/*
* 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 __COMMON_LINUX_DMABUF_H__
#define __COMMON_LINUX_DMABUF_H__
#include <nvgpu/comptags.h>
#include <nvgpu/list.h>
#include <nvgpu/lock.h>
#include <nvgpu/gmmu.h>
struct sg_table;
struct dma_buf;
struct dma_buf_attachment;
struct device;
struct gk20a;
struct gk20a_buffer_state;
struct gk20a_dmabuf_priv {
struct nvgpu_mutex lock;
struct gk20a *g;
struct gk20a_comptag_allocator *comptag_allocator;
struct gk20a_comptags comptags;
struct dma_buf_attachment *attach;
struct sg_table *sgt;
int pin_count;
struct nvgpu_list_node states;
u64 buffer_id;
};
/*
* These are implemented in common/linux/comptags.c - these are dmabuf related
* functions though so they are defined here. They cannot be defined in
* <nvgpu/comptags.h> since that file must be OS agnostic.
*/
int gk20a_alloc_comptags(struct gk20a *g,
struct device *dev,
struct dma_buf *dmabuf,
struct gk20a_comptag_allocator *allocator,
u32 lines);
void gk20a_get_comptags(struct device *dev, struct dma_buf *dmabuf,
struct gk20a_comptags *comptags);
struct sg_table *gk20a_mm_pin(struct device *dev, struct dma_buf *dmabuf);
void gk20a_mm_unpin(struct device *dev, struct dma_buf *dmabuf,
struct sg_table *sgt);
int gk20a_dmabuf_alloc_drvdata(struct dma_buf *dmabuf, struct device *dev);
int gk20a_dmabuf_get_state(struct dma_buf *dmabuf, struct gk20a *g,
u64 offset, struct gk20a_buffer_state **state);
int gk20a_mm_get_buffer_info(struct device *dev, int dmabuf_fd,
u64 *buffer_id, u64 *buffer_len);
#endif