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authorThierry Reding <treding@nvidia.com>2014-06-04 10:36:43 +0200
committerThierry Reding <treding@nvidia.com>2014-11-27 17:20:32 +0100
commit5ad2eef6eaed4ef90c25341a1c2278a0df5dafcc (patch)
treeeaefc32a502e047d525ea11f74384ebe8b9c91d8 /tests/ttmtest/README
parent93035cfbebf1344a041b70fbf9f3b89f6542805f (diff)
tegra: Add GET/SET_TILING IOCTLs
Currently the tiling parameters of buffer objects can only be set at allocation time, and only a single tiled mode is supported. This new DRM_TEGRA_GEM_SET_TILING IOCTL allows more modes to be set and also allows the tiling mode to be changed after the allocation. This will enable the Tegra DRM driver to import buffers from a GPU and directly scan them out by configuring the display controller appropriately. To complement this, the DRM_TEGRA_GEM_GET_TILING IOCTL can query the current tiling mode of a buffer object. This is necessary when importing buffers via handle (as is done in Mesa for example) so that userspace can determine the proper parameters for the 2D or 3D engines. Signed-off-by: Thierry Reding <treding@nvidia.com>
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