lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

drm: add some caps for userspace to discover more info for dumb KMS driver (v2)

Browse Source 
For the simple KMS driver case we need some more info about what the preferred
depth and if a shadow framebuffer is preferred.

I've only added this for intel/radeon which support the dumb ioctls so far.

If you need something really fancy you should be writing a real X.org driver.

v2: drop cursor information, just return an error from the cursor ioctls
and we can make userspace fallback to sw cursor in that case, cursor
info was getting too messy, best to start smaller.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2011-09-29 16:20:42 +01:00
parent 466e69b8b0
commit 019d96cb55
5 changed files with 17 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/drm_ioctl.c
View File

@@ -277,6 +277,12 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
case DRM_CAP_VBLANK_HIGH_CRTC:
req->value = 1;
break;
case DRM_CAP_DUMB_PREFERRED_DEPTH:
req->value = dev->mode_config.preferred_depth;
break;
case DRM_CAP_DUMB_PREFER_SHADOW:
req->value = dev->mode_config.prefer_shadow;
break;
default:
return -EINVAL;
}