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drm/vgem: create a render node for vgem 

VGEM doesn't do anything modeset specific, so in a way exposing a
primary node is 'wrong'. At the same time, we extensively use if for
creating dumb buffers, fences, prime fd <> handle imports/exports.

To the point that we explicitly annotate the vgem fence ioctls as
DRM_RENDER_ALLOW and have an IGT test which opens the render node.

close(drm_open_driver_render(DRIVER_VGEM))

Better late than never, let's flip the switch.

Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20181026120647.7528-1-emil.l.velikov@gmail.com
hifive-unleashed-5.1
Emil Velikov 2018-10-26 13:06:47 +01:00 committed by Emil Velikov
parent 9b4dcc9cbb
commit 3a6eb79564
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/vgem/vgem_drv.c
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@ -431,7 +431,8 @@ static void vgem_release(struct drm_device *dev)
}
static struct drm_driver vgem_driver = {
.driver_features = DRIVER_GEM | DRIVER_PRIME,
.driver_features = DRIVER_GEM | DRIVER_PRIME |
DRIVER_RENDER;
.release = vgem_release,
.open = vgem_open,
.postclose = vgem_postclose,