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