linux/drivers/gpu/host1x/job.h
Thierry Reding af1cbfb9bf gpu: host1x: Support DMA mapping of buffers
If host1x_bo_pin() returns an SG table, create a DMA mapping for the
buffer. For buffers that the host1x client has already mapped itself,
host1x_bo_pin() returns NULL and the existing DMA address is used.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-29 15:04:35 +01:00

35 lines
602 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Tegra host1x Job
*
* Copyright (c) 2011-2013, NVIDIA Corporation.
*/
#ifndef __HOST1X_JOB_H
#define __HOST1X_JOB_H
#include <linux/dma-direction.h>
struct host1x_job_gather {
unsigned int words;
dma_addr_t base;
struct host1x_bo *bo;
unsigned int offset;
bool handled;
};
struct host1x_job_unpin_data {
struct host1x_bo *bo;
struct sg_table *sgt;
struct device *dev;
size_t size;
enum dma_data_direction dir;
};
/*
* Dump contents of job to debug output.
*/
void host1x_job_dump(struct device *dev, struct host1x_job *job);
#endif