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drm/tegra: Use tegra_dev_iommu_get_stream_id() 

Use the newly implemented tegra_dev_iommu_get_stream_id() helper to
encapsulate and centralize the IOMMU stream ID access.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2022-11-17 13:34:50 +01:00
parent 9026ba7223
commit b8cbb04f65
1 changed files with 3 additions and 11 deletions
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14
drivers/gpu/drm/tegra/submit.c
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@ -609,21 +609,13 @@ int tegra_drm_ioctl_channel_submit(struct drm_device *drm, void *data,
host1x_memory_context_get(job->memory_context); host1x_memory_context_get(job->memory_context);
} }
} else if (context->client->ops->get_streamid_offset) { } else if (context->client->ops->get_streamid_offset) {
#ifdef CONFIG_IOMMU_API
struct iommu_fwspec *spec;
/* /*
* Job submission will need to temporarily change stream ID, * Job submission will need to temporarily change stream ID,
* so need to tell it what to change it back to. * so need to tell it what to change it back to.
*/ */
spec = dev_iommu_fwspec_get(context->client->base.dev); if (!tegra_dev_iommu_get_stream_id(context->client->base.dev,
if (spec && spec->num_ids > 0) &job->engine_fallback_streamid))
job->engine_fallback_streamid = spec->ids[0] & 0xffff; job->engine_fallback_streamid = TEGRA_STREAM_ID_BYPASS;
else
job->engine_fallback_streamid = 0x7f;
#else
job->engine_fallback_streamid = 0x7f;
#endif
} }
/* Boot engine. */ /* Boot engine. */