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| author | Thierry Reding <treding@nvidia.com> | 2021-09-09 16:51:24 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2021-12-16 16:07:06 +0300 |
| commit | c6aeaf56f468a565f6d2f27325fc07d35cdcd3cb (patch) | |
| tree | b2b15454b61f09b1ea0fd281af0dff3ce5a77941 /drivers/gpu/drm/tegra/uapi.h | |
| parent | 7a56783850772feb2cbf1dabdce617f5941a57c0 (diff) | |
| download | linux-c6aeaf56f468a565f6d2f27325fc07d35cdcd3cb.tar.xz | |
drm/tegra: Implement correct DMA-BUF semantics
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.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/uapi.h')
| -rw-r--r-- | drivers/gpu/drm/tegra/uapi.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/tegra/uapi.h b/drivers/gpu/drm/tegra/uapi.h index 12adad770ad3..92ff1e44ff15 100644 --- a/drivers/gpu/drm/tegra/uapi.h +++ b/drivers/gpu/drm/tegra/uapi.h @@ -27,10 +27,9 @@ struct tegra_drm_file { struct tegra_drm_mapping { struct kref ref; - struct device *dev; + struct host1x_bo_mapping *map; struct host1x_bo *bo; - struct sg_table *sgt; - enum dma_data_direction direction; + dma_addr_t iova; dma_addr_t iova_end; }; |