linux-dev/drivers/gpu/drm/tegra/uapi.c, branch linus/master

drm/tegra: Implement buffer object cache

2021-12-16T13:07:06Z

This cache is used to avoid mapping and unmapping buffer objects unnecessarily. Mappings are cached per client and stay hot until the buffer object is destroyed. Signed-off-by: Thierry Reding

drm/tegra: Implement correct DMA-BUF semantics

2021-12-16T13:07:06Z

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

drm/tegra: uapi: Fix wrong mapping end address in case of disabled IOMMU

2021-09-16T16:06:51Z

All jobs are failing on Tegra20 because it doesn't use IOMMU and mapping function uses size of mapping that is zero instead of BO size, fix it. Fixes: d7c591bc1a3f ("drm/tegra: Implement new UAPI") Signed-off-by: Dmitry Osipenko Reviewed-by: Mikko Perttunen Signed-off-by: Thierry Reding

drm/tegra: Implement syncpoint wait UAPI

2021-08-10T15:04:05Z

Implement new syncpoint wait UAPI. This is different from the legacy one in taking an absolute timestamp in line with modern DRM conventions. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

drm/tegra: Implement syncpoint management UAPI

2021-08-10T15:04:05Z

Implement TegraDRM IOCTLs for allocating and freeing syncpoints. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding

drm/tegra: Implement new UAPI

2021-08-10T15:04:05Z

Implement the non-submission parts of the new UAPI, including channel management and memory mapping. The UAPI is under the CONFIG_DRM_TEGRA_STAGING config flag for now. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding