DRM_IOCTL_VERSION is a reliable way to get the driver-name and version information. It's not related to the interface-version (SET_VERSION ioctl) so we can safely enable it on render-nodes.
Note that gbm uses udev-BUSID to load the correct mesa driver. However, the VERSION ioctl should be the more reliable way to do this (in case we add new DRM-bus drivers which have no BUSID or similar).
Signed-off-by: David Herrmann dh.herrmann@gmail.com --- drivers/gpu/drm/drm_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 21cd5f5..e01168b 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -61,7 +61,7 @@ static int drm_version(struct drm_device *dev, void *data,
/** Ioctl table */ static const struct drm_ioctl_desc drm_ioctls[] = { - DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED), + DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED|DRM_RENDER_ALLOW), DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
On Mon, Oct 28, 2013 at 10:55:49AM +0100, David Herrmann wrote:
Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch
Hi Dave
That one should go into 3.13. I'd like to keep drm.rnodes=0 for one more release. OpenCL is reported to be working with this (thanks to Tom), OpenGL isn't working, yet as it relies on flink names. Patches are available to make OpenGL work on rnodes with mesa.
Cheers David
On Mon, Oct 28, 2013 at 11:22 AM, Daniel Vetter daniel@ffwll.ch wrote:
dri-devel@lists.freedesktop.org
-
Daniel Vetter -
David Herrmann