From 7678d71fb4bd6abe6ccb46afe7d90b3ed01ee936 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 3 Jun 2014 14:56:57 +0200 Subject: [PATCH] drm/tegra: Add SET/GET_TILING IOCTLs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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. Reviewed-by: Stéphane Marchesin Tested-by: Alexandre Courbot Signed-off-by: Thierry Reding --- Reading git-format-patch failed