Using `#include "drm.h"` instead of `#include <drm/drm.h>` allow drm
headers to be moved in another directory without changes, like for the
libdrm imports.
Signed-off-by: NGabriel Laskar <gabriel@lse.epita.fr>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
CC: Emil Velikov <emil.l.velikov@gmail.com>
CC: Mikko Rapeli <mikko.rapeli@iki.fi>

On 64-bit targets, tegra_gem_mmap() only returns a partial offset to
userspace. As such, subsequent calls to mmap(2) may fail. Change the
arguments to use a 64-bit offset to fix this.
Signed-off-by: NSean Paul <seanpaul@chromium.org>
Acked-by: NErik Faye-Lund <kusmabite@gmail.com>
[treding@nvidia.com: tweak commit message]
Signed-off-by: NThierry Reding <treding@nvidia.com>

The DRM_TEGRA_GEM_SET_FLAGS IOCTL can be used to set the flags of a
buffer object after it has been allocated or imported. Flags associated
with a buffer object can be queried using the DRM_TEGRA_GEM_GET_FLAGS
IOCTL.
Reviewed-by: NStéphane Marchesin <marcheu@chromium.org>
Tested-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

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: NStéphane Marchesin <marcheu@chromium.org>
Tested-by: NAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

The version of the drm_tegra_submit structure that was merged all the
way back in 3.10 contains a pad field that was originally intended to
properly pad the following __u64 field. Unfortunately it seems like a
different field was dropped during review that caused this padding to
become unnecessary, but the pad field wasn't removed at that time.

One possible side-effect of this is that since the __u64 following the
pad is now no longer properly aligned, the compiler may (or may not)
introduce padding itself, which results in no predictable ABI.

Rectify this by removing the pad field so that all fields are again
naturally aligned. Technically this is breaking existing userspace ABI,
but given that there aren't any (released) userspace drivers that make
use of this yet, the fallout should be minimal.

Fixes: d43f81cb ("drm/tegra: Add gr2d device")
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: NThierry Reding <treding@nvidia.com>

This file will eventually be exported to libdrm, where all the public
header files use the MIT license.
Reported-by: NErik Faye-Lund <kusmabite@gmail.com>
Acked-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NEmil Goode <emilgoode@gmail.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

This patch adds a separate ioctl for delivering syncpoint base number
to user space. If the syncpoint does not have an associated base, the
function returns -ENXIO.
Signed-off-by: NArto Merilainen <amerilainen@nvidia.com>
Reviewed-by: NTerje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

The gr3d engine renders images bottom-up. Allow buffers that are used
for 3D content to be marked as such and implement support in the display
controller to present them properly.
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: NThierry Reding <treding@nvidia.com>

The gr2d and gr3d engines work more efficiently on buffers with a tiled
memory layout. Allow created buffers to be marked as tiled so that the
display controller can scan them out properly.
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Include definitions of used types by including drm/drm.h

Sparse output:
/usr/include/drm/tegra_drm.h:21:
	found __[us]{8,16,32,64} type without
	#include <linux/types.h>
Signed-off-by: NEmil Goode <emilgoode@gmail.com>
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>

Add client driver for 2D device, and IOCTLs to pass work to host1x
channel for 2D.

Also adds functions that can be called to access sync points from
DRM.
Signed-off-by: NArto Merilainen <amerilainen@nvidia.com>
Signed-off-by: NTerje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: NThierry Reding <thierry.reding@avionic-design.de>
Tested-by: NThierry Reding <thierry.reding@avionic-design.de>
Tested-by: NErik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>