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DMA-BUF requires that each device that accesses a DMA-BUF attaches to it separately. To do so the host1x_bo_pin() and host1x_bo_unpin() functions need to be reimplemented so that they can return a mapping, which either represents an attachment or a map of the driver's own GEM object. Bug 200768479 Signed-off-by: Thierry Reding <treding@nvidia.com> Change-Id: Ia380b7dcc371ce47f5f35d44a60fbd6b4ab9d636 Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2596398 (cherry picked from commit 28960586000fca025689edfd45645ab28e497bca) Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2620137 Tested-by: Jonathan Hunter <jonathanh@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com> Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit
45 lines
700 B
C
45 lines
700 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_wait {
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u32 id;
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u32 threshold;
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};
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struct host1x_job_cmd {
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bool is_wait;
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union {
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struct host1x_job_gather gather;
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struct host1x_job_wait wait;
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};
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};
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struct host1x_job_unpin_data {
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struct host1x_bo_mapping *map;
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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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