linux-toradex.git/include/uapi/drm/virtgpu_drm.h, branch v5.1-rc1

drm/virtio: add in/out fence support for explicit synchronization

2018-11-14T13:21:02+00:00

When the execbuf call receives an in-fence it will get the dma_fence
related to that fence fd and wait on it before submitting the draw call.

On the out-fence side we get fence returned by the submitted draw call
and attach it to a sync_file and send the sync_file fd to userspace. On
error -1 is returned to userspace.

VIRTGPU_EXECBUF_FENCE_FD_IN & VIRTGPU_EXECBUF_FENCE_FD_OUT
are supported at the simultaneously and can be flagged
for simultaneously.

Signed-off-by: Gustavo Padovan 
Signed-off-by: Robert Foss 
Reviewed-by: Emil Velikov 
Link: http://patchwork.freedesktop.org/patch/msgid/20181112165157.32765-4-robert.foss@collabora.com
Suggested-by: Rob Herring 
Reviewed-by: Emil Velikov 
Signed-off-by: Gerd Hoffmann

drm/virtio: add uapi for in and out explicit fences

2018-11-14T13:21:01+00:00

Add a new field called fence_fd that will be used by userspace to send
in-fences to the kernel and receive out-fences created by the kernel.

This uapi enables virtio to take advantage of explicit synchronization of
dma-bufs.

There are two new flags:

* VIRTGPU_EXECBUF_FENCE_FD_IN to be used when passing an in-fence fd.
* VIRTGPU_EXECBUF_FENCE_FD_OUT to be used when requesting an out-fence fd

The execbuffer IOCTL is now read-write to allow the userspace to read the
out-fence.

On error -1 should be returned in the fence_fd field.

Signed-off-by: Gustavo Padovan 
Signed-off-by: Robert Foss 
Reviewed-by: Emil Velikov 
Link: http://patchwork.freedesktop.org/patch/msgid/20181112165157.32765-3-robert.foss@collabora.com
Signed-off-by: Gerd Hoffmann

virtio-gpu: fix ioctl and expose the fixed status to userspace.

2018-02-27T07:37:58+00:00

This exposes to mesa that it can use the fixed ioctl for querying
later cap sets, cap set 1 is forever frozen in time.

Signed-off-by: Dave Airlie 
Link: http://patchwork.freedesktop.org/patch/msgid/20180221015003.22884-1-airlied@gmail.com
Signed-off-by: Gerd Hoffmann

drm/virgl: add extern C guard for the UAPI header

2016-05-13T13:06:20+00:00

Cc: Dave Airlie 
Cc: Gerd Hoffmann 
Signed-off-by: Emil Velikov

drm: fix inclusion of drm.h in virtgpu_drm.h

2015-12-10T11:33:23+00:00

Using `#include "drm.h"` instead of `#include ` allow drm
headers to be moved in another directory without changes, like for the
libdrm imports.

Signed-off-by: Gabriel Laskar 
Reviewed-by: Emil Velikov 
CC: Emil Velikov 
CC: Mikko Rapeli

drm: use __u{32,64} instead of uint{32,64}_t in virtgpu_drm.h

2015-12-10T11:33:23+00:00

Signed-off-by: Gabriel Laskar 
Reviewed-by: Emil Velikov 
CC: Emil Velikov 
CC: Mikko Rapeli

virtio-gpu: add 3d/virgl support

2015-10-16T08:44:02+00:00

Add the bits needed for opengl rendering support: query
capabilities, new virtio commands, drm ioctls.

Signed-off-by: Dave Airlie 
Signed-off-by: Gerd Hoffmann