redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

drm/prime: expose capability flags for userspace.

Browse source 
This lets the kernel tell userspace if the device supports prime
import/export.

This is useful for -modesetting at least, but would be nice for other
drivers.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-04-02 14:11:50 +01:00
parent cfcbd6d3de
commit 4271a40900
2 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/gpu/drm/drm_ioctl.c
View file

@ -283,6 +283,10 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
case DRM_CAP_DUMB_PREFER_SHADOW:
req->value = dev->mode_config.prefer_shadow;
break;
case DRM_CAP_PRIME:
req->value |= dev->driver->prime_fd_to_handle ? DRM_PRIME_CAP_IMPORT : 0;
req->value |= dev->driver->prime_handle_to_fd ? DRM_PRIME_CAP_EXPORT : 0;
break;
default:
return -EINVAL;
}

4
include/drm/drm.h
View file

@ -777,6 +777,10 @@ struct drm_event_vblank {
#define DRM_CAP_VBLANK_HIGH_CRTC 0x2
#define DRM_CAP_DUMB_PREFERRED_DEPTH 0x3
#define DRM_CAP_DUMB_PREFER_SHADOW 0x4
#define DRM_CAP_PRIME 0x5
#define DRM_PRIME_CAP_IMPORT 0x1
#define DRM_PRIME_CAP_EXPORT 0x2
/* typedef area */
#ifndef __KERNEL__