Am 12.07.22 um 18:50 schrieb John Stultz:
On Tue, Jul 12, 2022 at 12:46 AM Christian König
<[email protected]> wrote:
Am 12.07.22 um 06:22 schrieb John Stultz:
Allows for basic SYNCOBJ api testing, in environments
like VMs where there may not be a supported drm driver.
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: Jason Ekstrand <[email protected]>
Cc: Christian König <[email protected]>
Cc: Lionel Landwerlin <[email protected]>
Cc: Chunming Zhou <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: [email protected]
Signed-off-by: John Stultz <[email protected]>
---
drivers/gpu/drm/vgem/vgem_drv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index c5e3e5457737..e5427d7399da 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -109,7 +109,8 @@ static struct drm_gem_object *vgem_gem_create_object(struct
drm_device *dev, siz
}
static const struct drm_driver vgem_driver = {
- .driver_features = DRIVER_GEM | DRIVER_RENDER,
+ .driver_features = DRIVER_GEM | DRIVER_RENDER |
+ DRIVER_SYNCOBJ |
DRIVER_SYNCOBJ_TIMELINE,
Well that's rather surprising. I'm not an export on VGEM, but AFAIK you
need to adjust the CS interface to support that stuff as well.
Apologies, could you clarify a bit more what you mean here? This was
just helpful to enable the generic userland ioctls for the example
test tool in this series.
Are you proposing to add interfaces so the vgem driver can
attach/signal syncobjs similar to the
DRM_IOCTL_VGEM_FENCE_ATTACH/DRM_IOCTL_VGEM_FENCE_SIGNAL calls?
Yes, exactly that. I don't see how it would be useful otherwise.
Christian.
thanks
-john
