drm/vc4: Add support for rendering with ETC1 textures.
authorEric Anholt <eric@anholt.net>
Fri, 4 Nov 2016 01:53:10 +0000 (18:53 -0700)
committerRaspbian kernel package updater <root@raspbian.org>
Thu, 9 Mar 2017 17:52:36 +0000 (17:52 +0000)
commitb27b57f21ab839bcf5d4d4c7599765c8afa55fee
tree3924e62ed6b73195a998c4fe21f1b4120c81932e
parenta7f8a9344c86650d268a2830375bb277d266634b
drm/vc4: Add support for rendering with ETC1 textures.

The validation for it ends up being quite simple, but I hadn't got
around to it before merging the driver.  For backwards compatibility,
we also need to add a flag so that the userspace GL driver can easily
tell if the kernel will allow ETC1 textures (on an old kernel, it will
continue to convert to RGBA8)

Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit 7154d76fedf549607afbc0d13db9aaf02da5cebf)
drivers/gpu/drm/vc4/vc4_drv.c
drivers/gpu/drm/vc4/vc4_validate.c
include/uapi/drm/vc4_drm.h