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drm: Add a SET_CLIENT_CAP ioctl

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This ioctl can be used to turn some knobs in a DRM driver. The client
can ask the DRM core for an alternate view of the reality: it can be
useful to be able to instruct the core that the DRM client can handle
new functionnality that would otherwise break current ABI.

v2: Rename to ioctl from SET_CAP to SET_CLIENT_CAP (Chris Wilson)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Damien Lespiau
2013-09-25 16:45:20 +01:00
committed by Daniel Vetter
parent a99b57dbc0
commit 1c0814fed3
4 changed files with 19 additions and 0 deletions
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9
drivers/gpu/drm/drm_ioctl.c
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@@ -302,6 +302,15 @@ int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
return 0;
}
/**
* Set device/driver capabilities
*/
int
drm_setclientcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
return -EINVAL;
}
/**
* Setversion ioctl.
*