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egl: Don't add hardware device if there is no render node v2.

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Do not offer a hardware drm backed egl device if no render node
is available. The current implementation will fail on this
egl device. On top it issues a warning that is actually missleading.
There are finally more error paths that can fail on the way to a
hardware backed egl device. Fixing all of them would kind of require
opening the drm device and see if there is a usable driver associated
with the device. The taken approach avoids a full probe and fixes at
least this kind of problem on kvm virtualization hosts I observe here.

Fixes: dbb4457d98 ("egl: add EGL_EXT_device_drm support")
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
This commit is contained in:
Mathias Fröhlich 2019-06-06 10:22:25 +02:00
parent 8dd26fa2f0
commit 5743a36b2b
1 changed files with 2 additions and 2 deletions
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4
src/egl/main/egldevice.c
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@ -108,9 +108,9 @@ static int
_eglAddDRMDevice(drmDevicePtr device, _EGLDevice **out_dev)
{
_EGLDevice *dev;
const int wanted_nodes = 1 << DRM_NODE_RENDER | 1 << DRM_NODE_PRIMARY;
if ((device->available_nodes & (1 << DRM_NODE_PRIMARY |
1 << DRM_NODE_RENDER)) == 0)
if ((device->available_nodes & wanted_nodes) != wanted_nodes)
return -1;
dev = _eglGlobal.DeviceList;